updated various names of EM engine specific definitions
[rocksndiamonds.git] / src / game_em / synchro_2.c
index 4fbf2d9f182a56ac443bb2bc9310455fd3a0c416..98188da61259e617c0d9f1ed6ae254fc2504bf70 100644 (file)
@@ -8,37 +8,55 @@
  * compilers suck.
  */
 
-#include "display.h"
-#include "tile.h"
-#include "level.h"
-#include "sample.h"
+#include "main_em.h"
 
 
-#if defined(TARGET_X11)
-
 #define RANDOM (random = random << 31 | random >> 1)
-#define PLAY(sample) { if ((unsigned int)(y - top) <= 12 && (unsigned int)(x - left) <= 20) play[sample] = 1; }
 
-extern unsigned int screen_x;
-extern unsigned int screen_y;
+static void set_nearest_player_xy(int x, int y, int *dx, int *dy)
+{
+  int distance, distance_shortest = EM_MAX_CAVE_WIDTH + EM_MAX_CAVE_HEIGHT;
+  int i;
+
+  /* default values if no players are alive anymore */
+  *dx = 0;
+  *dy = 0;
+
+  for (i = 0; i < MAX_PLAYERS; i++)
+  {
+    if (!ply[i].alive)
+      continue;
+
+    distance = ABS(ply[i].x - x) + ABS(ply[i].y - y);
+
+    if (distance < distance_shortest)
+    {
+      *dx = ply[i].x;
+      *dy = ply[i].y;
+
+      distance_shortest = distance;
+    }
+  }
+}
 
 void synchro_2(void)
 {
-  register unsigned int x = 0;
-  register unsigned int y = 1;
-  register unsigned long random = Random;
-  register unsigned short *cave_cache = Cave[y]; /* might be a win */
-  unsigned long score = 0;
-
-  unsigned int temp = 0;       /* initialized to make compilers happy */
-  unsigned int left = screen_x / TILEX; /* only needed for sounds */
-  unsigned int top = screen_y / TILEY;
-  unsigned int dx; /* only needed to find closest player */
-  unsigned int dy;
+  int x = 0;
+  int y = 1;
+  unsigned int random = RandomEM;
+  short *cave_cache = Cave[y]; /* might be a win */
+  int score = 0;
+
+  int temp = 0;                        /* initialized to make compilers happy */
+  int dx;                      /* only needed to find closest player */
+  int dy;
+  int element;
 
  loop:
 
-  switch (cave_cache[++x])
+  element = cave_cache[++x];
+
+  switch (element)
   {
     default:
       goto loop;
@@ -46,10 +64,10 @@ void synchro_2(void)
     /* --------------------------------------------------------------------- */
 
 #ifdef BAD_ROLL
-    case Xstone_force_e:
+    case Xpush_stone_e:
       switch (Cave[y][x+1])
       {
-       case ZBORDER:
+       case Zborder:
        case Znormal:
        case Zdynamite:
        case Xboom_bug:
@@ -69,10 +87,10 @@ void synchro_2(void)
          goto loop;
       }
 
-    case Xstone_force_w:
+    case Xpush_stone_w:
       switch (Cave[y][x-1])
       {
-       case ZBORDER:
+       case Zborder:
        case Znormal:
        case Zdynamite:
        case Xboom_bug:
@@ -92,10 +110,10 @@ void synchro_2(void)
          goto loop;
       }
 
-    case Xnut_force_e:
+    case Xpush_nut_e:
       switch (Cave[y][x+1])
       {
-       case ZBORDER:
+       case Zborder:
        case Znormal:
        case Zdynamite:
        case Xboom_bug:
@@ -115,10 +133,10 @@ void synchro_2(void)
          goto loop;
       }
 
-    case Xnut_force_w:
+    case Xpush_nut_w:
       switch (Cave[y][x-1])
       {
-       case ZBORDER:
+       case Zborder:
        case Znormal:
        case Zdynamite:
        case Xboom_bug:
@@ -138,10 +156,10 @@ void synchro_2(void)
          goto loop;
        }
 
-    case Xspring_force_e:
+    case Xpush_spring_e:
       switch (Cave[y][x+1])
       {
-        case ZBORDER:
+        case Zborder:
        case Znormal:
        case Zdynamite:
        case Xboom_bug:
@@ -167,10 +185,10 @@ void synchro_2(void)
          goto loop;
       }
 
-    case Xspring_force_w:
+    case Xpush_spring_w:
       switch (Cave[y][x-1])
       {
-       case ZBORDER:
+       case Zborder:
        case Znormal:
        case Zdynamite:
        case Xboom_bug:
@@ -195,10 +213,10 @@ void synchro_2(void)
          goto loop;
        }
 
-    case Xemerald_force_e:
+    case Xpush_emerald_e:
       switch (Cave[y][x+1])
       {
-       case ZBORDER:
+       case Zborder:
        case Znormal:
        case Zdynamite:
        case Xboom_bug:
@@ -218,10 +236,10 @@ void synchro_2(void)
          goto loop;
        }
 
-    case Xemerald_force_w:
+    case Xpush_emerald_w:
       switch (Cave[y][x-1])
       {
-       case ZBORDER:
+       case Zborder:
        case Znormal:
        case Zdynamite:
        case Xboom_bug:
@@ -241,10 +259,10 @@ void synchro_2(void)
          goto loop;
        }
 
-    case Xdiamond_force_e:
+    case Xpush_diamond_e:
       switch (Cave[y][x+1])
       {
-       case ZBORDER:
+       case Zborder:
        case Znormal:
        case Zdynamite:
        case Xboom_bug:
@@ -264,10 +282,10 @@ void synchro_2(void)
          goto loop;
        }
 
-    case Xdiamond_force_w:
+    case Xpush_diamond_w:
       switch (Cave[y][x-1])
       {
-       case ZBORDER:
+       case Zborder:
        case Znormal:
        case Zdynamite:
        case Xboom_bug:
@@ -287,10 +305,10 @@ void synchro_2(void)
          goto loop;
        }
 
-    case Xbomb_force_e:
+    case Xpush_bomb_e:
       switch (Cave[y][x+1])
       {
-       case ZBORDER:
+       case Zborder:
        case Znormal:
        case Zdynamite:
        case Xboom_bug:
@@ -310,10 +328,10 @@ void synchro_2(void)
          goto loop;
        }
 
-    case Xbomb_force_w:
+    case Xpush_bomb_w:
       switch (Cave[y][x-1])
       {
-       case ZBORDER:
+       case Zborder:
        case Znormal:
        case Zdynamite:
        case Xboom_bug:
@@ -349,18 +367,28 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ystone_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
+#if 1
+        case Xfake_acid_1:
+        case Xfake_acid_2:
+        case Xfake_acid_3:
+        case Xfake_acid_4:
+        case Xfake_acid_5:
+        case Xfake_acid_6:
+        case Xfake_acid_7:
+        case Xfake_acid_8:
+#endif
          Cave[y][x] = Ystone_sB;
          Cave[y+1][x] = Ystone_s;
          Next[y][x] = Xblank;
@@ -402,8 +430,8 @@ void synchro_2(void)
        case Xball_2:
        case Xnut:
        case Xnut_pause:
-       case Xgrow_ns:
-       case Xgrow_ew:
+       case Xslidewall_ns:
+       case Xslidewall_ew:
        case Xkey_1:
        case Xkey_2:
        case Xkey_3:
@@ -416,10 +444,10 @@ void synchro_2(void)
        case Xswitch:
        case Xlenses:
        case Xmagnify:
-       case Xround_wall_1:
-       case Xround_wall_2:
-       case Xround_wall_3:
-       case Xround_wall_4:
+       case Xroundwall_1:
+       case Xroundwall_2:
+       case Xroundwall_3:
+       case Xroundwall_4:
          if (RANDOM & 1)
          {
            if (tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]])
@@ -480,16 +508,26 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ystone_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
+#if 1
+        case Xfake_acid_1:
+        case Xfake_acid_2:
+        case Xfake_acid_3:
+        case Xfake_acid_4:
+        case Xfake_acid_5:
+        case Xfake_acid_6:
+        case Xfake_acid_7:
+        case Xfake_acid_8:
+#endif
          Cave[y][x] = Ystone_sB;
          Cave[y+1][x] = Ystone_s;
          Next[y][x] = Xblank;
@@ -517,17 +555,27 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ystone_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Zplayer:
+#if 1
+        case Xfake_acid_1:
+        case Xfake_acid_2:
+        case Xfake_acid_3:
+        case Xfake_acid_4:
+        case Xfake_acid_5:
+        case Xfake_acid_6:
+        case Xfake_acid_7:
+        case Xfake_acid_8:
+#endif
          Cave[y][x] = Ystone_sB;
          Cave[y+1][x] = Ystone_s;
          Next[y][x] = Xblank;
@@ -536,21 +584,21 @@ void synchro_2(void)
 
        case Xnut:
        case Xnut_pause:
-         Cave[y+1][x] = Yemerald_stone;
+         Cave[y+1][x] = Ynut_stone;
          Next[y][x] = Xstone;
          Next[y+1][x] = Xemerald;
-         play[SAMPLE_crack] = 1;
+         play_element_sound(x, y, SOUND_crack, Xnut);
          score += lev.nut_score;
          goto loop;
 
-       case Xbug_n:
-       case Xbug_e:
-       case Xbug_s:
-       case Xbug_w:
-       case Xbug_gon:
-       case Xbug_goe:
-       case Xbug_gos:
-       case Xbug_gow:
+       case Xbug_1_n:
+       case Xbug_1_e:
+       case Xbug_1_s:
+       case Xbug_1_w:
+       case Xbug_2_n:
+       case Xbug_2_e:
+       case Xbug_2_s:
+       case Xbug_2_w:
          Cave[y][x] = Ystone_sB;
          Cave[y+1][x] = Ybug_stone;
          Next[y+1][x] = Znormal;
@@ -563,17 +611,20 @@ void synchro_2(void)
          Boom[y+2][x-1] = Xemerald;
          Boom[y+2][x] = Xemerald;
          Boom[y+2][x+1] = Xemerald;
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SOUND_boom, element);
+#endif
          score += lev.bug_score;
          goto loop;
 
-       case Xtank_n:
-       case Xtank_e:
-       case Xtank_s:
-       case Xtank_w:
-       case Xtank_gon:
-       case Xtank_goe:
-       case Xtank_gos:
-       case Xtank_gow:
+       case Xtank_1_n:
+       case Xtank_1_e:
+       case Xtank_1_s:
+       case Xtank_1_w:
+       case Xtank_2_n:
+       case Xtank_2_e:
+       case Xtank_2_s:
+       case Xtank_2_w:
          Cave[y][x] = Ystone_sB;
          Cave[y+1][x] = Ytank_stone;
          Next[y+1][x] = Znormal;
@@ -586,6 +637,9 @@ void synchro_2(void)
          Boom[y+2][x-1] = Xblank;
          Boom[y+2][x] = Xblank;
          Boom[y+2][x+1] = Xblank;
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SOUND_boom, element);
+#endif
          score += lev.tank_score;
          goto loop;
 
@@ -595,8 +649,8 @@ void synchro_2(void)
            switch (Cave[y+1][x+1])
            {
              case Xblank:
-             case Yacid_splash_eB:
-             case Yacid_splash_wB:
+             case Xacid_splash_e:
+             case Xacid_splash_w:
              case Xalien:
              case Xalien_pause:
                Cave[y+1][x] = Xspring_e;
@@ -612,8 +666,8 @@ void synchro_2(void)
            switch (Cave[y+1][x-1])
            {
              case Xblank:
-             case Yacid_splash_eB:
-             case Yacid_splash_wB:
+             case Xacid_splash_e:
+             case Xacid_splash_w:
              case Xalien:
              case Xalien_pause:
                Cave[y+1][x] = Xspring_w;
@@ -643,6 +697,9 @@ void synchro_2(void)
          Boom[y+2][x-1] = lev.eater_array[lev.eater_pos][6];
          Boom[y+2][x] = lev.eater_array[lev.eater_pos][7];
          Boom[y+2][x+1] = lev.eater_array[lev.eater_pos][8];
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SOUND_boom, element);
+#endif
          lev.eater_pos = (lev.eater_pos + 1) & 7;
          score += lev.eater_score;
          goto loop;
@@ -661,6 +718,9 @@ void synchro_2(void)
          Boom[y+2][x-1] = Xblank;
          Boom[y+2][x] = Xblank;
          Boom[y+2][x+1] = Xblank;
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SOUND_boom, element);
+#endif
          score += lev.alien_score;
          goto loop;
 
@@ -669,25 +729,25 @@ void synchro_2(void)
          switch (Cave[y+2][x])
          {
            case Xblank:
-           case Yacid_splash_eB:
-           case Yacid_splash_wB:
+           case Xacid_splash_e:
+           case Xacid_splash_w:
            case Zplayer:
-           case Xbug_n:
-           case Xbug_e:
-           case Xbug_s:
-           case Xbug_w:
-           case Xbug_gon:
-           case Xbug_goe:
-           case Xbug_gos:
-           case Xbug_gow:
-           case Xtank_n:
-           case Xtank_e:
-           case Xtank_s:
-           case Xtank_w:
-           case Xtank_gon:
-           case Xtank_goe:
-           case Xtank_gos:
-           case Xtank_gow:
+           case Xbug_1_n:
+           case Xbug_1_e:
+           case Xbug_1_s:
+           case Xbug_1_w:
+           case Xbug_2_n:
+           case Xbug_2_e:
+           case Xbug_2_s:
+           case Xbug_2_w:
+           case Xtank_1_n:
+           case Xtank_1_e:
+           case Xtank_1_s:
+           case Xtank_1_w:
+           case Xtank_2_n:
+           case Xtank_2_e:
+           case Xtank_2_s:
+           case Xtank_2_w:
            case Xspring_fall:
            case Xandroid:
            case Xandroid_1_n:
@@ -715,7 +775,7 @@ void synchro_2(void)
            case Xplant:
            case Yplant:
              Next[y][x] = Xstone;
-             PLAY(SAMPLE_stone);
+             play_element_sound(x, y, SOUND_stone, Xstone);
              goto loop;
          }
 
@@ -723,12 +783,12 @@ void synchro_2(void)
          Cave[y+1][x] = Ydiamond_stone;
          Next[y][x] = Xblank;
          Next[y+1][x] = Xstone_pause;
-         play[SAMPLE_squash] = 1;
+         play_element_sound(x, y, SOUND_squash, Xdiamond);
          goto loop;
 
        case Xbomb:
        case Xbomb_pause:
-         Cave[y+1][x] = Ybomb_eat;
+         Cave[y+1][x] = Ybomb_blank;
          Next[y+1][x] = Znormal;
          Boom[y][x-1] = Xblank;
          Boom[y][x] = Xblank;
@@ -739,6 +799,9 @@ void synchro_2(void)
          Boom[y+2][x-1] = Xblank;
          Boom[y+2][x] = Xblank;
          Boom[y+2][x+1] = Xblank;
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SOUND_boom, element);
+#endif
          goto loop;
 
        case Xwonderwall:
@@ -754,14 +817,14 @@ void synchro_2(void)
            }
 
            Next[y][x] = Xblank;
-           play[SAMPLE_squash] = 1;
+           play_element_sound(x, y, SOUND_wonderfall, Xwonderwall);
            goto loop;
          }
 
        default:
          Cave[y][x] = Xstone;
          Next[y][x] = Xstone;
-         PLAY(SAMPLE_stone);
+         play_element_sound(x, y, SOUND_stone, Xstone);
          goto loop;
       }
 
@@ -780,16 +843,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ynut_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Ynut_sB;
          Cave[y+1][x] = Ynut_s;
          Next[y][x] = Xblank;
@@ -824,8 +887,8 @@ void synchro_2(void)
        case Xball_2:
        case Xnut:
        case Xnut_pause:
-       case Xgrow_ns:
-       case Xgrow_ew:
+       case Xslidewall_ns:
+       case Xslidewall_ew:
        case Xkey_1:
        case Xkey_2:
        case Xkey_3:
@@ -836,10 +899,10 @@ void synchro_2(void)
        case Xkey_8:
        case Xbumper:
        case Xswitch:
-       case Xround_wall_1:
-       case Xround_wall_2:
-       case Xround_wall_3:
-       case Xround_wall_4:
+       case Xroundwall_1:
+       case Xroundwall_2:
+       case Xroundwall_3:
+       case Xroundwall_4:
          if (RANDOM & 1)
          {
            if (tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]])
@@ -901,16 +964,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ynut_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Ynut_sB;
          Cave[y+1][x] = Ynut_s;
          Next[y][x] = Xblank;
@@ -938,16 +1001,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ynut_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Zplayer:
          Cave[y][x] = Ynut_sB;
          Cave[y+1][x] = Ynut_s;
@@ -958,24 +1021,24 @@ void synchro_2(void)
        default:
          Cave[y][x] = Xnut;
          Next[y][x] = Xnut;
-         PLAY(SAMPLE_nut);
+         play_element_sound(x, y, SOUND_nut, Xnut);
          goto loop;
       }
 
     /* --------------------------------------------------------------------- */
 
-    case Xbug_n:
-      if (tab_ameuba[Cave[y-1][x]] ||
-         tab_ameuba[Cave[y][x+1]] ||
-         tab_ameuba[Cave[y+1][x]] ||
-         tab_ameuba[Cave[y][x-1]])
+    case Xbug_1_n:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
        goto bug_boom;
 
       switch (Cave[y][x+1])
       {
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Xacid_1:
@@ -988,19 +1051,19 @@ void synchro_2(void)
        case Xacid_8:
        case Zplayer:
          Cave[y][x] = Ybug_n_e;
-         Next[y][x] = Xbug_goe;
-         PLAY(SAMPLE_bug);
+         Next[y][x] = Xbug_2_e;
+         play_element_sound(x, y, SOUND_bug, element);
          goto loop;
 
        default:
          goto bug_gon;
        }
 
-    case Xbug_gon:
-      if (tab_ameuba[Cave[y-1][x]] ||
-         tab_ameuba[Cave[y][x+1]] ||
-         tab_ameuba[Cave[y+1][x]] ||
-         tab_ameuba[Cave[y][x-1]])
+    case Xbug_2_n:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
        goto bug_boom;
 
     bug_gon:
@@ -1017,47 +1080,47 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ybug_nB;
          if (Cave[y-2][x+1] == Xblank)
-           Cave[y-2][x+1] = Yacid_splash_eB;
+           Cave[y-2][x+1] = Xacid_splash_e;
          if (Cave[y-2][x-1] == Xblank)
-           Cave[y-2][x-1] = Yacid_splash_wB;
+           Cave[y-2][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Zplayer:
          Cave[y][x] = Ybug_nB;
          Cave[y-1][x] = Ybug_n;
          Next[y][x] = Xblank;
-         Next[y-1][x] = Xbug_n;
-         PLAY(SAMPLE_bug);
+         Next[y-1][x] = Xbug_1_n;
+         play_element_sound(x, y, SOUND_bug, element);
          goto loop;
 
        default:
          Cave[y][x] = Ybug_n_w;
-         Next[y][x] = Xbug_gow;
-         PLAY(SAMPLE_bug);
+         Next[y][x] = Xbug_2_w;
+         play_element_sound(x, y, SOUND_bug, element);
          goto loop;
       }
 
     /* --------------------------------------------------------------------- */
 
-    case Xbug_e:
-      if (tab_ameuba[Cave[y-1][x]] ||
-         tab_ameuba[Cave[y][x+1]] ||
-         tab_ameuba[Cave[y+1][x]] ||
-         tab_ameuba[Cave[y][x-1]])
+    case Xbug_1_e:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
        goto bug_boom;
 
       switch (Cave[y+1][x])
       {
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Xacid_1:
@@ -1070,19 +1133,19 @@ void synchro_2(void)
        case Xacid_8:
        case Zplayer:
          Cave[y][x] = Ybug_e_s;
-         Next[y][x] = Xbug_gos;
-         PLAY(SAMPLE_bug);
+         Next[y][x] = Xbug_2_s;
+         play_element_sound(x, y, SOUND_bug, element);
          goto loop;
 
        default:
          goto bug_goe;
       }
 
-    case Xbug_goe:
-      if (tab_ameuba[Cave[y-1][x]] ||
-         tab_ameuba[Cave[y][x+1]] ||
-         tab_ameuba[Cave[y+1][x]] ||
-         tab_ameuba[Cave[y][x-1]])
+    case Xbug_2_e:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
        goto bug_boom;
 
     bug_goe:
@@ -1099,47 +1162,47 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ybug_eB;
          if (Cave[y-1][x+2] == Xblank)
-           Cave[y-1][x+2] = Yacid_splash_eB;
+           Cave[y-1][x+2] = Xacid_splash_e;
          if (Cave[y-1][x] == Xblank)
-           Cave[y-1][x] = Yacid_splash_wB;
+           Cave[y-1][x] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Zplayer:
          Cave[y][x] = Ybug_eB;
          Cave[y][x+1] = Ybug_e;
          Next[y][x] = Xblank;
-         Next[y][x+1] = Xbug_e;
-         PLAY(SAMPLE_bug);
+         Next[y][x+1] = Xbug_1_e;
+         play_element_sound(x, y, SOUND_bug, element);
          goto loop;
 
        default:
          Cave[y][x] = Ybug_e_n;
-         Next[y][x] = Xbug_gon;
-         PLAY(SAMPLE_bug);
+         Next[y][x] = Xbug_2_n;
+         play_element_sound(x, y, SOUND_bug, element);
          goto loop;
       }
 
     /* --------------------------------------------------------------------- */
 
-    case Xbug_s:
-      if (tab_ameuba[Cave[y-1][x]] ||
-         tab_ameuba[Cave[y][x+1]] ||
-         tab_ameuba[Cave[y+1][x]] ||
-         tab_ameuba[Cave[y][x-1]])
+    case Xbug_1_s:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
        goto bug_boom;
 
       switch (Cave[y][x-1])
       {
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Xacid_1:
@@ -1152,19 +1215,19 @@ void synchro_2(void)
        case Xacid_8:
        case Zplayer:
          Cave[y][x] = Ybug_s_w;
-         Next[y][x] = Xbug_gow;
-         PLAY(SAMPLE_bug);
+         Next[y][x] = Xbug_2_w;
+         play_element_sound(x, y, SOUND_bug, element);
          goto loop;
 
        default:
          goto bug_gos;
       }
 
-    case Xbug_gos:
-      if (tab_ameuba[Cave[y-1][x]] ||
-         tab_ameuba[Cave[y][x+1]] ||
-         tab_ameuba[Cave[y+1][x]] ||
-         tab_ameuba[Cave[y][x-1]])
+    case Xbug_2_s:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
        goto bug_boom;
 
     bug_gos:
@@ -1181,47 +1244,47 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ybug_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Zplayer:
          Cave[y][x] = Ybug_sB;
          Cave[y+1][x] = Ybug_s;
          Next[y][x] = Xblank;
-         Next[y+1][x] = Xbug_s;
-         PLAY(SAMPLE_bug);
+         Next[y+1][x] = Xbug_1_s;
+         play_element_sound(x, y, SOUND_bug, element);
          goto loop;
 
        default:
          Cave[y][x] = Ybug_s_e;
-         Next[y][x] = Xbug_goe;
-         PLAY(SAMPLE_bug);
+         Next[y][x] = Xbug_2_e;
+         play_element_sound(x, y, SOUND_bug, element);
          goto loop;
       }
 
     /* --------------------------------------------------------------------- */
 
-    case Xbug_w:
-      if (tab_ameuba[Cave[y-1][x]] ||
-         tab_ameuba[Cave[y][x+1]] ||
-         tab_ameuba[Cave[y+1][x]] ||
-         tab_ameuba[Cave[y][x-1]])
+    case Xbug_1_w:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
        goto bug_boom;
 
       switch (Cave[y-1][x])
       {
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Xacid_1:
@@ -1234,19 +1297,19 @@ void synchro_2(void)
        case Xacid_8:
        case Zplayer:
          Cave[y][x] = Ybug_w_n;
-         Next[y][x] = Xbug_gon;
-         PLAY(SAMPLE_bug);
+         Next[y][x] = Xbug_2_n;
+         play_element_sound(x, y, SOUND_bug, element);
          goto loop;
 
        default:
          goto bug_gow;
       }
 
-    case Xbug_gow:
-      if (tab_ameuba[Cave[y-1][x]] ||
-         tab_ameuba[Cave[y][x+1]] ||
-         tab_ameuba[Cave[y+1][x]] ||
-         tab_ameuba[Cave[y][x-1]])
+    case Xbug_2_w:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
        goto bug_boom;
 
     bug_gow:
@@ -1263,47 +1326,47 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ybug_wB;
          if (Cave[y-1][x] == Xblank)
-           Cave[y-1][x] = Yacid_splash_eB;
+           Cave[y-1][x] = Xacid_splash_e;
          if (Cave[y-1][x-2] == Xblank)
-           Cave[y-1][x-2] = Yacid_splash_wB;
+           Cave[y-1][x-2] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Zplayer:
          Cave[y][x] = Ybug_wB;
          Cave[y][x-1] = Ybug_w;
          Next[y][x] = Xblank;
-         Next[y][x-1] = Xbug_w;
-         PLAY(SAMPLE_bug);
+         Next[y][x-1] = Xbug_1_w;
+         play_element_sound(x, y, SOUND_bug, element);
          goto loop;
 
        default:
          Cave[y][x] = Ybug_w_s;
-         Next[y][x] = Xbug_gos;
-         PLAY(SAMPLE_bug);
+         Next[y][x] = Xbug_2_s;
+         play_element_sound(x, y, SOUND_bug, element);
          goto loop;
       }
 
     /* --------------------------------------------------------------------- */
 
-    case Xtank_n:
-      if (tab_ameuba[Cave[y-1][x]] ||
-         tab_ameuba[Cave[y][x+1]] ||
-         tab_ameuba[Cave[y+1][x]] ||
-         tab_ameuba[Cave[y][x-1]])
+    case Xtank_1_n:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
        goto tank_boom;
 
       switch (Cave[y][x-1])
       {
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Xacid_1:
@@ -1316,19 +1379,19 @@ void synchro_2(void)
        case Xacid_8:
        case Zplayer:
          Cave[y][x] = Ytank_n_w;
-         Next[y][x] = Xtank_gow;
-         PLAY(SAMPLE_tank);
+         Next[y][x] = Xtank_2_w;
+         play_element_sound(x, y, SOUND_tank, element);
          goto loop;
 
        default:
          goto tank_gon;
       }
 
-    case Xtank_gon:
-      if (tab_ameuba[Cave[y-1][x]] ||
-         tab_ameuba[Cave[y][x+1]] ||
-         tab_ameuba[Cave[y+1][x]] ||
-         tab_ameuba[Cave[y][x-1]])
+    case Xtank_2_n:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
        goto tank_boom;
 
     tank_gon:
@@ -1345,47 +1408,47 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ytank_nB;
          if (Cave[y-2][x+1] == Xblank)
-           Cave[y-2][x+1] = Yacid_splash_eB;
+           Cave[y-2][x+1] = Xacid_splash_e;
          if (Cave[y-2][x-1] == Xblank)
-           Cave[y-2][x-1] = Yacid_splash_wB;
+           Cave[y-2][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Zplayer:
          Cave[y][x] = Ytank_nB;
          Cave[y-1][x] = Ytank_n;
          Next[y][x] = Xblank;
-         Next[y-1][x] = Xtank_n;
-         PLAY(SAMPLE_tank);
+         Next[y-1][x] = Xtank_1_n;
+         play_element_sound(x, y, SOUND_tank, element);
          goto loop;
 
        default:
          Cave[y][x] = Ytank_n_e;
-         Next[y][x] = Xtank_goe;
-         PLAY(SAMPLE_tank);
+         Next[y][x] = Xtank_2_e;
+         play_element_sound(x, y, SOUND_tank, element);
          goto loop;
       }
 
     /* --------------------------------------------------------------------- */
 
-    case Xtank_e:
-      if (tab_ameuba[Cave[y-1][x]] ||
-         tab_ameuba[Cave[y][x+1]] ||
-         tab_ameuba[Cave[y+1][x]] ||
-         tab_ameuba[Cave[y][x-1]])
+    case Xtank_1_e:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
        goto tank_boom;
 
       switch (Cave[y-1][x])
       {
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Xacid_1:
@@ -1398,19 +1461,19 @@ void synchro_2(void)
        case Xacid_8:
        case Zplayer:
          Cave[y][x] = Ytank_e_n;
-         Next[y][x] = Xtank_gon;
-         PLAY(SAMPLE_tank);
+         Next[y][x] = Xtank_2_n;
+         play_element_sound(x, y, SOUND_tank, element);
          goto loop;
 
        default:
          goto tank_goe;
       }
 
-    case Xtank_goe:
-      if (tab_ameuba[Cave[y-1][x]] ||
-         tab_ameuba[Cave[y][x+1]] ||
-         tab_ameuba[Cave[y+1][x]] ||
-         tab_ameuba[Cave[y][x-1]])
+    case Xtank_2_e:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
        goto tank_boom;
 
     tank_goe:
@@ -1427,47 +1490,47 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ytank_eB;
          if (Cave[y-1][x+2] == Xblank)
-           Cave[y-1][x+2] = Yacid_splash_eB;
+           Cave[y-1][x+2] = Xacid_splash_e;
          if (Cave[y-1][x] == Xblank)
-           Cave[y-1][x] = Yacid_splash_wB;
+           Cave[y-1][x] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Zplayer:
          Cave[y][x] = Ytank_eB;
          Cave[y][x+1] = Ytank_e;
          Next[y][x] = Xblank;
-         Next[y][x+1] = Xtank_e;
-         PLAY(SAMPLE_tank);
+         Next[y][x+1] = Xtank_1_e;
+         play_element_sound(x, y, SOUND_tank, element);
          goto loop;
 
        default:
          Cave[y][x] = Ytank_e_s;
-         Next[y][x] = Xtank_gos;
-         PLAY(SAMPLE_tank);
+         Next[y][x] = Xtank_2_s;
+         play_element_sound(x, y, SOUND_tank, element);
          goto loop;
       }
 
     /* --------------------------------------------------------------------- */
 
-    case Xtank_s:
-      if (tab_ameuba[Cave[y-1][x]] ||
-         tab_ameuba[Cave[y][x+1]] ||
-         tab_ameuba[Cave[y+1][x]] ||
-         tab_ameuba[Cave[y][x-1]])
+    case Xtank_1_s:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
        goto tank_boom;
 
       switch (Cave[y][x+1])
       {
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Xacid_1:
@@ -1480,19 +1543,19 @@ void synchro_2(void)
        case Xacid_8:
        case Zplayer:
          Cave[y][x] = Ytank_s_e;
-         Next[y][x] = Xtank_goe;
-         PLAY(SAMPLE_tank);
+         Next[y][x] = Xtank_2_e;
+         play_element_sound(x, y, SOUND_tank, element);
          goto loop;
 
        default:
          goto tank_gos;
       }
 
-    case Xtank_gos:
-      if (tab_ameuba[Cave[y-1][x]] ||
-         tab_ameuba[Cave[y][x+1]] ||
-         tab_ameuba[Cave[y+1][x]] ||
-         tab_ameuba[Cave[y][x-1]])
+    case Xtank_2_s:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
        goto tank_boom;
 
     tank_gos:
@@ -1509,47 +1572,47 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ytank_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Zplayer:
          Cave[y][x] = Ytank_sB;
          Cave[y+1][x] = Ytank_s;
          Next[y][x] = Xblank;
-         Next[y+1][x] = Xtank_s;
-         PLAY(SAMPLE_tank);
+         Next[y+1][x] = Xtank_1_s;
+         play_element_sound(x, y, SOUND_tank, element);
          goto loop;
 
        default:
          Cave[y][x] = Ytank_s_w;
-         Next[y][x] = Xtank_gow;
-         PLAY(SAMPLE_tank);
+         Next[y][x] = Xtank_2_w;
+         play_element_sound(x, y, SOUND_tank, element);
          goto loop;
       }
 
     /* --------------------------------------------------------------------- */
 
-    case Xtank_w:
-      if (tab_ameuba[Cave[y-1][x]] ||
-         tab_ameuba[Cave[y][x+1]] ||
-         tab_ameuba[Cave[y+1][x]] ||
-         tab_ameuba[Cave[y][x-1]])
+    case Xtank_1_w:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
        goto tank_boom;
 
       switch (Cave[y+1][x])
       {
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Xacid_1:
@@ -1562,19 +1625,19 @@ void synchro_2(void)
        case Xacid_8:
        case Zplayer:
          Cave[y][x] = Ytank_w_s;
-         Next[y][x] = Xtank_gos;
-         PLAY(SAMPLE_tank);
+         Next[y][x] = Xtank_2_s;
+         play_element_sound(x, y, SOUND_tank, element);
          goto loop;
 
        default:
          goto tank_gow;
       }
 
-    case Xtank_gow:
-      if (tab_ameuba[Cave[y-1][x]] ||
-         tab_ameuba[Cave[y][x+1]] ||
-         tab_ameuba[Cave[y+1][x]] ||
-         tab_ameuba[Cave[y][x-1]])
+    case Xtank_2_w:
+      if (tab_amoeba[Cave[y-1][x]] ||
+         tab_amoeba[Cave[y][x+1]] ||
+         tab_amoeba[Cave[y+1][x]] ||
+         tab_amoeba[Cave[y][x-1]])
        goto tank_boom;
 
     tank_gow:
@@ -1591,30 +1654,30 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ytank_wB;
          if (Cave[y-1][x] == Xblank)
-           Cave[y-1][x] = Yacid_splash_eB;
+           Cave[y-1][x] = Xacid_splash_e;
          if (Cave[y-1][x-2] == Xblank)
-           Cave[y-1][x-2] = Yacid_splash_wB;
+           Cave[y-1][x-2] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Zplayer:
          Cave[y][x] = Ytank_wB;
          Cave[y][x-1] = Ytank_w;
          Next[y][x] = Xblank;
-         Next[y][x-1] = Xtank_w;
-         PLAY(SAMPLE_tank);
+         Next[y][x-1] = Xtank_1_w;
+         play_element_sound(x, y, SOUND_tank, element);
          goto loop;
 
        default:
          Cave[y][x] = Ytank_w_n;
-         Next[y][x] = Xtank_gon;
-         PLAY(SAMPLE_tank);
+         Next[y][x] = Xtank_2_n;
+         play_element_sound(x, y, SOUND_tank, element);
          goto loop;
       }
 
@@ -1729,8 +1792,8 @@ void synchro_2(void)
            goto android_move;
        }
 
-       Next[y][x] = temp; /* the item we chose to clone */
-       play[SAMPLE_android] = 1;
+       Next[y][x] = temp;      /* the item we chose to clone */
+       play_element_sound(x, y, SOUND_android_clone, temp);
 
        switch (RANDOM & 7)
        {
@@ -1839,39 +1902,9 @@ void synchro_2(void)
            Cave[y+1][x+1] == Zplayer)
          goto android_still;
 
-       if (ply1.alive && ply2.alive)
-       {
-         if ((ply1.x > x ? ply1.x - x : x - ply1.x) +
-             (ply1.y > y ? ply1.y - y : y - ply1.y) <
-             (ply2.x > x ? ply2.x - x : x - ply2.x) +
-             (ply2.y > y ? ply2.y - y : y - ply2.y))
-         {
-           dx = ply1.x;
-           dy = ply1.y;
-         }
-         else
-         {
-           dx = ply2.x;
-           dy = ply2.y;
-         }
-       }
-       else if (ply1.alive)
-       {
-         dx = ply1.x;
-         dy = ply1.y;
-       }
-       else if (ply2.alive)
-       {
-         dx = ply2.x;
-         dy = ply2.y;
-       }
-       else
-       {
-         dx = 0;
-         dy = 0;
-       }
+       set_nearest_player_xy(x, y, &dx, &dy);
 
-       Next[y][x] = Xblank; /* assume we will move */
+       Next[y][x] = Xblank;    /* assume we will move */
        temp = ((x < dx) + 1 - (x > dx)) + ((y < dy) + 1 - (y > dy)) * 3;
 
        if (RANDOM & 1)
@@ -2002,7 +2035,7 @@ void synchro_2(void)
       Cave[y][x] = Yandroid_nB;
       Cave[y-1][x] = Yandroid_n;
       Next[y-1][x] = Xandroid;
-      PLAY(SAMPLE_tank);
+      play_element_sound(x, y, SOUND_android_move, element);
       goto loop;
 
     android_ne:
@@ -2010,7 +2043,7 @@ void synchro_2(void)
       Cave[y][x] = Yandroid_neB;
       Cave[y-1][x+1] = Yandroid_ne;
       Next[y-1][x+1] = Xandroid;
-      PLAY(SAMPLE_tank);
+      play_element_sound(x, y, SOUND_android_move, element);
       goto loop;
 
     android_e:
@@ -2018,7 +2051,7 @@ void synchro_2(void)
       Cave[y][x] = Yandroid_eB;
       Cave[y][x+1] = Yandroid_e;
       Next[y][x+1] = Xandroid;
-      PLAY(SAMPLE_tank);
+      play_element_sound(x, y, SOUND_android_move, element);
       goto loop;
 
     android_se:
@@ -2026,7 +2059,7 @@ void synchro_2(void)
       Cave[y][x] = Yandroid_seB;
       Cave[y+1][x+1] = Yandroid_se;
       Next[y+1][x+1] = Xandroid;
-      PLAY(SAMPLE_tank);
+      play_element_sound(x, y, SOUND_android_move, element);
       goto loop;
 
     android_s:
@@ -2034,7 +2067,7 @@ void synchro_2(void)
       Cave[y][x] = Yandroid_sB;
       Cave[y+1][x] = Yandroid_s;
       Next[y+1][x] = Xandroid;
-      PLAY(SAMPLE_tank);
+      play_element_sound(x, y, SOUND_android_move, element);
       goto loop;
 
     android_sw:
@@ -2042,7 +2075,7 @@ void synchro_2(void)
       Cave[y][x] = Yandroid_swB;
       Cave[y+1][x-1] = Yandroid_sw;
       Next[y+1][x-1] = Xandroid;
-      PLAY(SAMPLE_tank);
+      play_element_sound(x, y, SOUND_android_move, element);
       goto loop;
 
     android_w:
@@ -2050,7 +2083,7 @@ void synchro_2(void)
       Cave[y][x] = Yandroid_wB;
       Cave[y][x-1] = Yandroid_w;
       Next[y][x-1] = Xandroid;
-      PLAY(SAMPLE_tank);
+      play_element_sound(x, y, SOUND_android_move, element);
       goto loop;
 
     android_nw:
@@ -2058,7 +2091,7 @@ void synchro_2(void)
       Cave[y][x] = Yandroid_nwB;
       Cave[y-1][x-1] = Yandroid_nw;
       Next[y-1][x-1] = Xandroid;
-      PLAY(SAMPLE_tank);
+      play_element_sound(x, y, SOUND_android_move, element);
       goto loop;
 
     /* --------------------------------------------------------------------- */
@@ -2076,21 +2109,21 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yandroid_nB;
          if (Cave[y-2][x+1] == Xblank)
-           Cave[y-2][x+1] = Yacid_splash_eB;
+           Cave[y-2][x+1] = Xacid_splash_e;
          if (Cave[y-2][x-1] == Xblank)
-           Cave[y-2][x-1] = Yacid_splash_wB;
+           Cave[y-2][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Yandroid_nB;
          Cave[y-1][x] = Yandroid_n;
          Next[y][x] = Xblank;
          Next[y-1][x] = Xandroid;
-         PLAY(SAMPLE_tank);
+         play_element_sound(x, y, SOUND_android_move, element);
          goto loop;
 
        default:
@@ -2110,21 +2143,21 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yandroid_nB;
          if (Cave[y-2][x+1] == Xblank)
-           Cave[y-2][x+1] = Yacid_splash_eB;
+           Cave[y-2][x+1] = Xacid_splash_e;
          if (Cave[y-2][x-1] == Xblank)
-           Cave[y-2][x-1] = Yacid_splash_wB;
+           Cave[y-2][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Yandroid_nB;
          Cave[y-1][x] = Yandroid_n;
          Next[y][x] = Xblank;
          Next[y-1][x] = Xandroid_1_n;
-         PLAY(SAMPLE_tank);
+         play_element_sound(x, y, SOUND_android_move, element);
          goto loop;
 
        default:
@@ -2146,21 +2179,21 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yandroid_eB;
          if (Cave[y-1][x+2] == Xblank)
-           Cave[y-1][x+2] = Yacid_splash_eB;
+           Cave[y-1][x+2] = Xacid_splash_e;
          if (Cave[y-1][x] == Xblank)
-           Cave[y-1][x] = Yacid_splash_wB;
+           Cave[y-1][x] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Yandroid_eB;
          Cave[y][x+1] = Yandroid_e;
          Next[y][x] = Xblank;
          Next[y][x+1] = Xandroid;
-         PLAY(SAMPLE_tank);
+         play_element_sound(x, y, SOUND_android_move, element);
          goto loop;
 
        default:
@@ -2180,21 +2213,21 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yandroid_eB;
          if (Cave[y-1][x+2] == Xblank)
-           Cave[y-1][x+2] = Yacid_splash_eB;
+           Cave[y-1][x+2] = Xacid_splash_e;
          if (Cave[y-1][x] == Xblank)
-           Cave[y-1][x] = Yacid_splash_wB;
+           Cave[y-1][x] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Yandroid_eB;
          Cave[y][x+1] = Yandroid_e;
          Next[y][x] = Xblank;
          Next[y][x+1] = Xandroid_1_e;
-         PLAY(SAMPLE_tank);
+         play_element_sound(x, y, SOUND_android_move, element);
          goto loop;
 
        default:
@@ -2216,21 +2249,21 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yandroid_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Yandroid_sB;
          Cave[y+1][x] = Yandroid_s;
          Next[y][x] = Xblank;
          Next[y+1][x] = Xandroid;
-         PLAY(SAMPLE_tank);
+         play_element_sound(x, y, SOUND_android_move, element);
          goto loop;
 
        default:
@@ -2250,21 +2283,21 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yandroid_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Yandroid_sB;
          Cave[y+1][x] = Yandroid_s;
          Next[y][x] = Xblank;
          Next[y+1][x] = Xandroid_1_s;
-         PLAY(SAMPLE_tank);
+         play_element_sound(x, y, SOUND_android_move, element);
          goto loop;
 
        default:
@@ -2286,21 +2319,21 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yandroid_wB;
          if (Cave[y-1][x] == Xblank)
-           Cave[y-1][x] = Yacid_splash_eB;
+           Cave[y-1][x] = Xacid_splash_e;
          if (Cave[y-1][x-2] == Xblank)
-           Cave[y-1][x-2] = Yacid_splash_wB;
+           Cave[y-1][x-2] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Yandroid_wB;
          Cave[y][x-1] = Yandroid_w;
          Next[y][x] = Xblank;
          Next[y][x-1] = Xandroid;
-         PLAY(SAMPLE_tank);
+         play_element_sound(x, y, SOUND_android_move, element);
          goto loop;
 
        default:
@@ -2320,21 +2353,21 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yandroid_wB;
          if (Cave[y-1][x] == Xblank)
-           Cave[y-1][x] = Yacid_splash_eB;
+           Cave[y-1][x] = Xacid_splash_e;
          if (Cave[y-1][x-2] == Xblank)
-           Cave[y-1][x-2] = Yacid_splash_wB;
+           Cave[y-1][x-2] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Yandroid_wB;
          Cave[y][x-1] = Yandroid_w;
          Next[y][x] = Xblank;
          Next[y][x-1] = Xandroid_1_w;
-         PLAY(SAMPLE_tank);
+         play_element_sound(x, y, SOUND_android_move, element);
          goto loop;
 
        default:
@@ -2356,16 +2389,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yspring_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
          Cave[y][x] = Yspring_sB;
@@ -2402,8 +2435,8 @@ void synchro_2(void)
        case Xball_2:
        case Xnut:
        case Xnut_pause:
-       case Xgrow_ns:
-       case Xgrow_ew:
+       case Xslidewall_ns:
+       case Xslidewall_ew:
        case Xkey_1:
        case Xkey_2:
        case Xkey_3:
@@ -2414,10 +2447,10 @@ void synchro_2(void)
        case Xkey_8:
        case Xbumper:
        case Xswitch:
-       case Xround_wall_1:
-       case Xround_wall_2:
-       case Xround_wall_3:
-       case Xround_wall_4:
+       case Xroundwall_1:
+       case Xroundwall_2:
+       case Xroundwall_3:
+       case Xroundwall_4:
          if (RANDOM & 1)
          {
            if (tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]])
@@ -2510,16 +2543,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yspring_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Yspring_sB;
          Cave[y+1][x] = Yspring_s;
          Next[y][x] = Xblank;
@@ -2547,16 +2580,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yspring_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Yspring_sB;
          Cave[y+1][x] = Yspring_s;
          Next[y][x] = Xblank;
@@ -2579,16 +2612,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yspring_eB;
          if (Cave[y-1][x+2] == Xblank)
-           Cave[y-1][x+2] = Yacid_splash_eB;
+           Cave[y-1][x+2] = Xacid_splash_e;
          if (Cave[y-1][x] == Xblank)
-           Cave[y-1][x] = Yacid_splash_wB;
+           Cave[y-1][x] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Yalien_nB:
        case Yalien_eB:
        case Yalien_sB:
@@ -2605,11 +2638,11 @@ void synchro_2(void)
        case Yalien_e:
        case Yalien_s:
        case Yalien_w:
-         Cave[y][x] = Yspring_kill_eB;
-         Cave[y][x+1] = Yspring_kill_e;
+         Cave[y][x] = Yspring_alien_eB;
+         Cave[y][x+1] = Yspring_alien_e;
          Next[y][x] = Xblank;
          Next[y][x+1] = Xspring_e;
-         play[SAMPLE_slurp] = 1;
+         play_element_sound(x, y, SOUND_slurp, Xalien);
          score += lev.slurp_score;
          goto loop;
 
@@ -2617,13 +2650,13 @@ void synchro_2(void)
        case XbumperB:
          Cave[y][x+1] = XbumperB;
          Next[y][x] = Xspring_w;
-         PLAY(SAMPLE_spring);
+         play_element_sound(x, y, SOUND_spring, Xspring);
          goto loop;
 
        default:
          Cave[y][x] = Xspring;
          Next[y][x] = Xspring;
-         PLAY(SAMPLE_spring);
+         play_element_sound(x, y, SOUND_spring, Xspring);
          goto loop;
       }
 
@@ -2642,16 +2675,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yspring_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Yspring_sB;
          Cave[y+1][x] = Yspring_s;
          Next[y][x] = Xblank;
@@ -2674,16 +2707,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yspring_wB;
          if (Cave[y-1][x] == Xblank)
-           Cave[y-1][x] = Yacid_splash_eB;
+           Cave[y-1][x] = Xacid_splash_e;
          if (Cave[y-1][x-2] == Xblank)
-           Cave[y-1][x-2] = Yacid_splash_wB;
+           Cave[y-1][x-2] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Yalien_nB:
        case Yalien_eB:
        case Yalien_sB:
@@ -2700,11 +2733,11 @@ void synchro_2(void)
        case Yalien_e:
        case Yalien_s:
        case Yalien_w:
-         Cave[y][x] = Yspring_kill_wB;
-         Cave[y][x-1] = Yspring_kill_w;
+         Cave[y][x] = Yspring_alien_wB;
+         Cave[y][x-1] = Yspring_alien_w;
          Next[y][x] = Xblank;
          Next[y][x-1] = Xspring_w;
-         play[SAMPLE_slurp] = 1;
+         play_element_sound(x, y, SOUND_slurp, Xalien);
          score += lev.slurp_score;
          goto loop;
 
@@ -2712,13 +2745,13 @@ void synchro_2(void)
        case XbumperB:
          Cave[y][x-1] = XbumperB;
          Next[y][x] = Xspring_e;
-         PLAY(SAMPLE_spring);
+         play_element_sound(x, y, SOUND_spring, Xspring);
          goto loop;
 
        default:
          Cave[y][x] = Xspring;
          Next[y][x] = Xspring;
-         PLAY(SAMPLE_spring);
+         play_element_sound(x, y, SOUND_spring, Xspring);
          goto loop;
       }
 
@@ -2737,16 +2770,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yspring_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Zplayer:
          Cave[y][x] = Yspring_sB;
          Cave[y+1][x] = Yspring_s;
@@ -2756,7 +2789,7 @@ void synchro_2(void)
 
        case Xbomb:
        case Xbomb_pause:
-         Cave[y+1][x] = Ybomb_eat;
+         Cave[y+1][x] = Ybomb_blank;
          Next[y+1][x] = Znormal;
          Boom[y][x-1] = Xblank;
          Boom[y][x] = Xblank;
@@ -2767,16 +2800,19 @@ void synchro_2(void)
          Boom[y+2][x-1] = Xblank;
          Boom[y+2][x] = Xblank;
          Boom[y+2][x+1] = Xblank;
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SOUND_boom, element);
+#endif
          goto loop;
 
-       case Xbug_n:
-       case Xbug_e:
-       case Xbug_s:
-       case Xbug_w:
-       case Xbug_gon:
-       case Xbug_goe:
-       case Xbug_gos:
-       case Xbug_gow:
+       case Xbug_1_n:
+       case Xbug_1_e:
+       case Xbug_1_s:
+       case Xbug_1_w:
+       case Xbug_2_n:
+       case Xbug_2_e:
+       case Xbug_2_s:
+       case Xbug_2_w:
          Cave[y][x] = Yspring_sB;
          Cave[y+1][x] = Ybug_spring;
          Next[y+1][x] = Znormal;
@@ -2789,17 +2825,20 @@ void synchro_2(void)
          Boom[y+2][x-1] = Xemerald;
          Boom[y+2][x] = Xemerald;
          Boom[y+2][x+1] = Xemerald;
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SOUND_boom, element);
+#endif
          score += lev.bug_score;
          goto loop;
 
-       case Xtank_n:
-       case Xtank_e:
-       case Xtank_s:
-       case Xtank_w:
-       case Xtank_gon:
-       case Xtank_goe:
-       case Xtank_gos:
-       case Xtank_gow:
+       case Xtank_1_n:
+       case Xtank_1_e:
+       case Xtank_1_s:
+       case Xtank_1_w:
+       case Xtank_2_n:
+       case Xtank_2_e:
+       case Xtank_2_s:
+       case Xtank_2_w:
          Cave[y][x] = Yspring_sB;
          Cave[y+1][x] = Ytank_spring;
          Next[y+1][x] = Znormal;
@@ -2812,6 +2851,9 @@ void synchro_2(void)
          Boom[y+2][x-1] = Xblank;
          Boom[y+2][x] = Xblank;
          Boom[y+2][x+1] = Xblank;
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SOUND_boom, element);
+#endif
          score += lev.tank_score;
          goto loop;
 
@@ -2831,6 +2873,9 @@ void synchro_2(void)
          Boom[y+2][x-1] = lev.eater_array[lev.eater_pos][6];
          Boom[y+2][x] = lev.eater_array[lev.eater_pos][7];
          Boom[y+2][x+1] = lev.eater_array[lev.eater_pos][8];
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SOUND_boom, element);
+#endif
          lev.eater_pos = (lev.eater_pos + 1) & 7;
          score += lev.eater_score;
          goto loop;
@@ -2849,13 +2894,16 @@ void synchro_2(void)
          Boom[y+2][x-1] = Xblank;
          Boom[y+2][x] = Xblank;
          Boom[y+2][x+1] = Xblank;
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SOUND_boom, element);
+#endif
          score += lev.alien_score;
          goto loop;
 
        default:
          Cave[y][x] = Xspring;
          Next[y][x] = Xspring;
-         PLAY(SAMPLE_spring);
+         play_element_sound(x, y, SOUND_spring, Xspring);
          goto loop;
       }
 
@@ -2864,33 +2912,33 @@ void synchro_2(void)
     case Xeater_n:
       if (Cave[y][x+1] == Xdiamond)
       {
-       Cave[y][x+1] = Ydiamond_eat;
+       Cave[y][x+1] = Ydiamond_blank;
        Next[y][x+1] = Xblank;
-       play[SAMPLE_eater] = 1;
+       play_element_sound(x, y, SOUND_eater_eat, element);
        goto loop;
       }
 
       if (Cave[y+1][x] == Xdiamond)
       {
-       Cave[y+1][x] = Ydiamond_eat;
+       Cave[y+1][x] = Ydiamond_blank;
        Next[y+1][x] = Xblank;
-       play[SAMPLE_eater] = 1;
+       play_element_sound(x, y, SOUND_eater_eat, element);
        goto loop;
       }
 
       if (Cave[y][x-1] == Xdiamond)
       {
-       Cave[y][x-1] = Ydiamond_eat;
+       Cave[y][x-1] = Ydiamond_blank;
        Next[y][x-1] = Xblank;
-       play[SAMPLE_eater] = 1;
+       play_element_sound(x, y, SOUND_eater_eat, element);
        goto loop;
       }
 
       if (Cave[y-1][x] == Xdiamond)
       {
-       Cave[y-1][x] = Ydiamond_eat;
+       Cave[y-1][x] = Ydiamond_blank;
        Next[y-1][x] = Xblank;
-       play[SAMPLE_eater] = 1;
+       play_element_sound(x, y, SOUND_eater_eat, element);
        goto loop;
       }
 
@@ -2906,16 +2954,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yeater_nB;
          if (Cave[y-2][x+1] == Xblank)
-           Cave[y-2][x+1] = Yacid_splash_eB;
+           Cave[y-2][x+1] = Xacid_splash_e;
          if (Cave[y-2][x-1] == Xblank)
-           Cave[y-2][x-1] = Yacid_splash_wB;
+           Cave[y-2][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Zplayer:
@@ -2927,7 +2975,7 @@ void synchro_2(void)
 
        default:
          Next[y][x] = RANDOM & 1 ? Xeater_e : Xeater_w;
-         PLAY(SAMPLE_eater);
+         play_element_sound(x, y, SOUND_eater, element);
          goto loop;
       }
 
@@ -2936,33 +2984,33 @@ void synchro_2(void)
     case Xeater_e:
       if (Cave[y+1][x] == Xdiamond)
       {
-       Cave[y+1][x] = Ydiamond_eat;
+       Cave[y+1][x] = Ydiamond_blank;
        Next[y+1][x] = Xblank;
-       play[SAMPLE_eater] = 1;
+       play_element_sound(x, y, SOUND_eater_eat, element);
        goto loop;
       }
 
       if (Cave[y][x-1] == Xdiamond)
       {
-       Cave[y][x-1] = Ydiamond_eat;
+       Cave[y][x-1] = Ydiamond_blank;
        Next[y][x-1] = Xblank;
-       play[SAMPLE_eater] = 1;
+       play_element_sound(x, y, SOUND_eater_eat, element);
        goto loop;
       }
 
       if (Cave[y-1][x] == Xdiamond)
       {
-       Cave[y-1][x] = Ydiamond_eat;
+       Cave[y-1][x] = Ydiamond_blank;
        Next[y-1][x] = Xblank;
-       play[SAMPLE_eater] = 1;
+       play_element_sound(x, y, SOUND_eater_eat, element);
        goto loop;
       }
 
       if (Cave[y][x+1] == Xdiamond)
       {
-       Cave[y][x+1] = Ydiamond_eat;
+       Cave[y][x+1] = Ydiamond_blank;
        Next[y][x+1] = Xblank;
-       play[SAMPLE_eater] = 1;
+       play_element_sound(x, y, SOUND_eater_eat, element);
        goto loop;
       }
 
@@ -2978,16 +3026,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yeater_eB;
          if (Cave[y-1][x+2] == Xblank)
-           Cave[y-1][x+2] = Yacid_splash_eB;
+           Cave[y-1][x+2] = Xacid_splash_e;
          if (Cave[y-1][x] == Xblank)
-           Cave[y-1][x] = Yacid_splash_wB;
+           Cave[y-1][x] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Zplayer:
@@ -2999,7 +3047,7 @@ void synchro_2(void)
 
        default:
          Next[y][x] = RANDOM & 1 ? Xeater_n : Xeater_s;
-         PLAY(SAMPLE_eater);
+         play_element_sound(x, y, SOUND_eater, element);
          goto loop;
       }
 
@@ -3008,33 +3056,33 @@ void synchro_2(void)
     case Xeater_s:
       if (Cave[y][x-1] == Xdiamond)
       {
-       Cave[y][x-1] = Ydiamond_eat;
+       Cave[y][x-1] = Ydiamond_blank;
        Next[y][x-1] = Xblank;
-       play[SAMPLE_eater] = 1;
+       play_element_sound(x, y, SOUND_eater_eat, element);
        goto loop;
       }
 
       if (Cave[y-1][x] == Xdiamond)
       {
-       Cave[y-1][x] = Ydiamond_eat;
+       Cave[y-1][x] = Ydiamond_blank;
        Next[y-1][x] = Xblank;
-       play[SAMPLE_eater] = 1;
+       play_element_sound(x, y, SOUND_eater_eat, element);
        goto loop;
       }
 
       if (Cave[y][x+1] == Xdiamond)
       {
-       Cave[y][x+1] = Ydiamond_eat;
+       Cave[y][x+1] = Ydiamond_blank;
        Next[y][x+1] = Xblank;
-       play[SAMPLE_eater] = 1;
+       play_element_sound(x, y, SOUND_eater_eat, element);
        goto loop;
       }
 
       if (Cave[y+1][x] == Xdiamond)
       {
-       Cave[y+1][x] = Ydiamond_eat;
+       Cave[y+1][x] = Ydiamond_blank;
        Next[y+1][x] = Xblank;
-       play[SAMPLE_eater] = 1;
+       play_element_sound(x, y, SOUND_eater_eat, element);
        goto loop;
       }
 
@@ -3050,16 +3098,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yeater_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Zplayer:
@@ -3071,7 +3119,7 @@ void synchro_2(void)
 
        default:
          Next[y][x] = RANDOM & 1 ? Xeater_e : Xeater_w;
-         PLAY(SAMPLE_eater);
+         play_element_sound(x, y, SOUND_eater, element);
          goto loop;
       }
 
@@ -3080,33 +3128,33 @@ void synchro_2(void)
     case Xeater_w:
       if (Cave[y-1][x] == Xdiamond)
       {
-       Cave[y-1][x] = Ydiamond_eat;
+       Cave[y-1][x] = Ydiamond_blank;
        Next[y-1][x] = Xblank;
-       play[SAMPLE_eater] = 1;
+       play_element_sound(x, y, SOUND_eater_eat, element);
        goto loop;
       }
 
       if (Cave[y][x+1] == Xdiamond)
       {
-       Cave[y][x+1] = Ydiamond_eat;
+       Cave[y][x+1] = Ydiamond_blank;
        Next[y][x+1] = Xblank;
-       play[SAMPLE_eater] = 1;
+       play_element_sound(x, y, SOUND_eater_eat, element);
        goto loop;
       }
 
       if (Cave[y+1][x] == Xdiamond)
       {
-       Cave[y+1][x] = Ydiamond_eat;
+       Cave[y+1][x] = Ydiamond_blank;
        Next[y+1][x] = Xblank;
-       play[SAMPLE_eater] = 1;
+       play_element_sound(x, y, SOUND_eater_eat, element);
        goto loop;
       }
 
       if (Cave[y][x-1] == Xdiamond)
       {
-       Cave[y][x-1] = Ydiamond_eat;
+       Cave[y][x-1] = Ydiamond_blank;
        Next[y][x-1] = Xblank;
-       play[SAMPLE_eater] = 1;
+       play_element_sound(x, y, SOUND_eater_eat, element);
        goto loop;
       }
 
@@ -3122,16 +3170,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yeater_wB;
          if (Cave[y-1][x] == Xblank)
-           Cave[y-1][x] = Yacid_splash_eB;
+           Cave[y-1][x] = Xacid_splash_e;
          if (Cave[y-1][x-2] == Xblank)
-           Cave[y-1][x-2] = Yacid_splash_wB;
+           Cave[y-1][x-2] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Zplayer:
@@ -3143,48 +3191,22 @@ void synchro_2(void)
 
        default:
          Next[y][x] = RANDOM & 1 ? Xeater_n : Xeater_s;
-         PLAY(SAMPLE_eater);
+         play_element_sound(x, y, SOUND_eater, element);
          goto loop;
       }
 
     /* --------------------------------------------------------------------- */
 
     case Xalien:
+
       if (lev.wheel_cnt)
       {
        dx = lev.wheel_x;
        dy = lev.wheel_y;
       }
-      else if (ply1.alive && ply2.alive)
-      {
-       if ((ply1.x > x ? ply1.x - x : x - ply1.x) +
-           (ply1.y > y ? ply1.y - y : y - ply1.y) <
-           (ply2.x > x ? ply2.x - x : x - ply2.x) +
-           (ply2.y > y ? ply2.y - y : y - ply2.y))
-       {
-         dx = ply1.x;
-         dy = ply1.y;
-       }
-       else
-       {
-         dx = ply2.x;
-         dy = ply2.y;
-       }
-      }
-      else if (ply1.alive)
-      {
-       dx = ply1.x;
-       dy = ply1.y;
-      }
-      else if (ply2.alive)
-      {
-       dx = ply2.x;
-       dy = ply2.y;
-      }
       else
       {
-       dx = 0;
-       dy = 0;
+       set_nearest_player_xy(x, y, &dx, &dy);
       }
 
       if (RANDOM & 1)
@@ -3203,16 +3225,16 @@ void synchro_2(void)
            case Xacid_8:
              Cave[y][x] = Yalien_nB;
              if (Cave[y-2][x+1] == Xblank)
-               Cave[y-2][x+1] = Yacid_splash_eB;
+               Cave[y-2][x+1] = Xacid_splash_e;
              if (Cave[y-2][x-1] == Xblank)
-               Cave[y-2][x-1] = Yacid_splash_wB;
+               Cave[y-2][x-1] = Xacid_splash_w;
              Next[y][x] = Xblank;
-             PLAY(SAMPLE_acid);
+             play_element_sound(x, y, SOUND_acid, Xacid_1);
              goto loop;
 
            case Xblank:
-           case Yacid_splash_eB:
-           case Yacid_splash_wB:
+           case Xacid_splash_e:
+           case Xacid_splash_w:
            case Xplant:
            case Yplant:
            case Zplayer:
@@ -3220,7 +3242,7 @@ void synchro_2(void)
              Cave[y-1][x] = Yalien_n;
              Next[y][x] = Xblank;
              Next[y-1][x] = Xalien_pause;
-             PLAY(SAMPLE_alien);
+             play_element_sound(x, y, SOUND_alien, Xalien);
              goto loop;
          }
        }
@@ -3239,15 +3261,15 @@ void synchro_2(void)
              Cave[y][x] = Yalien_sB;
              Next[y][x] = Xblank;
              if (Cave[y][x+1] == Xblank)
-               Cave[y][x+1] = Yacid_splash_eB;
+               Cave[y][x+1] = Xacid_splash_e;
              if (Cave[y][x-1] == Xblank)
-               Cave[y][x-1] = Yacid_splash_wB;
-             PLAY(SAMPLE_acid);
+               Cave[y][x-1] = Xacid_splash_w;
+             play_element_sound(x, y, SOUND_acid, Xacid_1);
              goto loop;
 
            case Xblank:
-           case Yacid_splash_eB:
-           case Yacid_splash_wB:
+           case Xacid_splash_e:
+           case Xacid_splash_w:
            case Xplant:
            case Yplant:
            case Zplayer:
@@ -3255,7 +3277,7 @@ void synchro_2(void)
              Cave[y+1][x] = Yalien_s;
              Next[y][x] = Xblank;
              Next[y+1][x] = Xalien_pause;
-             PLAY(SAMPLE_alien);
+             play_element_sound(x, y, SOUND_alien, Xalien);
              goto loop;
          }
        }
@@ -3276,16 +3298,16 @@ void synchro_2(void)
            case Xacid_8:
              Cave[y][x] = Yalien_eB;
              if (Cave[y-1][x+2] == Xblank)
-               Cave[y-1][x+2] = Yacid_splash_eB;
+               Cave[y-1][x+2] = Xacid_splash_e;
              if (Cave[y-1][x] == Xblank)
-               Cave[y-1][x] = Yacid_splash_wB;
+               Cave[y-1][x] = Xacid_splash_w;
              Next[y][x] = Xblank;
-             PLAY(SAMPLE_acid);
+             play_element_sound(x, y, SOUND_acid, Xacid_1);
              goto loop;
 
            case Xblank:
-           case Yacid_splash_eB:
-           case Yacid_splash_wB:
+           case Xacid_splash_e:
+           case Xacid_splash_w:
            case Xplant:
            case Yplant:
            case Zplayer:
@@ -3293,7 +3315,7 @@ void synchro_2(void)
              Cave[y][x+1] = Yalien_e;
              Next[y][x] = Xblank;
              Next[y][x+1] = Xalien_pause;
-             PLAY(SAMPLE_alien);
+             play_element_sound(x, y, SOUND_alien, Xalien);
              goto loop;
          }
        }
@@ -3311,16 +3333,16 @@ void synchro_2(void)
            case Xacid_8:
              Cave[y][x] = Yalien_wB;
              if (Cave[y-1][x] == Xblank)
-               Cave[y-1][x] = Yacid_splash_eB;
+               Cave[y-1][x] = Xacid_splash_e;
              if (Cave[y-1][x-2] == Xblank)
-               Cave[y-1][x-2] = Yacid_splash_wB;
+               Cave[y-1][x-2] = Xacid_splash_w;
              Next[y][x] = Xblank;
-             PLAY(SAMPLE_acid);
+             play_element_sound(x, y, SOUND_acid, Xacid_1);
              goto loop;
 
            case Xblank:
-           case Yacid_splash_eB:
-           case Yacid_splash_wB:
+           case Xacid_splash_e:
+           case Xacid_splash_w:
            case Xplant:
            case Yplant:
            case Zplayer:
@@ -3328,7 +3350,7 @@ void synchro_2(void)
              Cave[y][x-1] = Yalien_w;
              Next[y][x] = Xblank;
              Next[y][x-1] = Xalien_pause;
-             PLAY(SAMPLE_alien);
+             play_element_sound(x, y, SOUND_alien, Xalien);
              goto loop;
          }
        }
@@ -3355,16 +3377,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yemerald_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Yemerald_sB;
          Cave[y+1][x] = Yemerald_s;
          Next[y][x] = Xblank;
@@ -3399,8 +3421,8 @@ void synchro_2(void)
        case Xball_2:
        case Xnut:
        case Xnut_pause:
-       case Xgrow_ns:
-       case Xgrow_ew:
+       case Xslidewall_ns:
+       case Xslidewall_ew:
        case Xwonderwall:
        case Xkey_1:
        case Xkey_2:
@@ -3420,10 +3442,10 @@ void synchro_2(void)
        case Xwall_2:
        case Xwall_3:
        case Xwall_4:
-       case Xround_wall_1:
-       case Xround_wall_2:
-       case Xround_wall_3:
-       case Xround_wall_4:
+       case Xroundwall_1:
+       case Xroundwall_2:
+       case Xroundwall_3:
+       case Xroundwall_4:
          if (RANDOM & 1)
          {
            if (tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]])
@@ -3490,16 +3512,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yemerald_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Yemerald_sB;
          Cave[y+1][x] = Yemerald_s;
          Next[y][x] = Xblank;
@@ -3527,16 +3549,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Yemerald_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Zplayer:
          Cave[y][x] = Yemerald_sB;
          Cave[y+1][x] = Yemerald_s;
@@ -3556,14 +3578,14 @@ void synchro_2(void)
            }
 
            Next[y][x] = Xblank;
-           play[SAMPLE_squash] = 1;
+           play_element_sound(x, y, SOUND_wonderfall, Xwonderwall);
            goto loop;
          }
 
        default:
          Cave[y][x] = Xemerald;
          Next[y][x] = Xemerald;
-         PLAY(SAMPLE_diamond);
+         play_element_sound(x, y, SOUND_diamond, Xemerald);
          goto loop;
       }
 
@@ -3582,16 +3604,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ydiamond_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Ydiamond_sB;
          Cave[y+1][x] = Ydiamond_s;
          Next[y][x] = Xblank;
@@ -3626,8 +3648,8 @@ void synchro_2(void)
        case Xball_2:
        case Xnut:
        case Xnut_pause:
-       case Xgrow_ns:
-       case Xgrow_ew:
+       case Xslidewall_ns:
+       case Xslidewall_ew:
        case Xwonderwall:
        case Xkey_1:
        case Xkey_2:
@@ -3647,10 +3669,10 @@ void synchro_2(void)
        case Xwall_2:
        case Xwall_3:
        case Xwall_4:
-       case Xround_wall_1:
-       case Xround_wall_2:
-       case Xround_wall_3:
-       case Xround_wall_4:
+       case Xroundwall_1:
+       case Xroundwall_2:
+       case Xroundwall_3:
+       case Xroundwall_4:
          if (RANDOM & 1)
          {
            if (tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]])
@@ -3717,16 +3739,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ydiamond_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Ydiamond_sB;
          Cave[y+1][x] = Ydiamond_s;
          Next[y][x] = Xblank;
@@ -3754,16 +3776,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ydiamond_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Zplayer:
          Cave[y][x] = Ydiamond_sB;
          Cave[y+1][x] = Ydiamond_s;
@@ -3783,14 +3805,14 @@ void synchro_2(void)
            }
 
            Next[y][x] = Xblank;
-           play[SAMPLE_squash] = 1;
+           play_element_sound(x, y, SOUND_wonderfall, Xwonderwall);
            goto loop;
          }
 
        default:
          Cave[y][x] = Xdiamond;
          Next[y][x] = Xdiamond;
-         PLAY(SAMPLE_diamond);
+         play_element_sound(x, y, SOUND_diamond, Xdiamond);
          goto loop;
       }
 
@@ -3807,23 +3829,23 @@ void synchro_2(void)
        case Xacid_6:
        case Xacid_7:
        case Xacid_8:
-         Cave[y][x] = Ydrip_s1B;
+         Cave[y][x] = Ydrip_1_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xdrip_stretchB;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
        case Xplant:
        case Yplant:
        case Zplayer:
-         Cave[y][x] = Ydrip_s1B;
-         Cave[y+1][x] = Ydrip_s1;
+         Cave[y][x] = Ydrip_1_sB;
+         Cave[y+1][x] = Ydrip_1_s;
          Next[y][x] = Xdrip_stretchB;
          Next[y+1][x] = Xdrip_stretch;
          goto loop;
@@ -3832,57 +3854,57 @@ void synchro_2(void)
          switch (RANDOM & 7)
          {
            case 0:
-             temp = Xameuba_1;
+             temp = Xamoeba_1;
              break;
 
            case 1:
-             temp = Xameuba_2;
+             temp = Xamoeba_2;
              break;
 
            case 2:
-             temp = Xameuba_3;
+             temp = Xamoeba_3;
              break;
 
            case 3:
-             temp = Xameuba_4;
+             temp = Xamoeba_4;
              break;
 
            case 4:
-             temp = Xameuba_5;
+             temp = Xamoeba_5;
              break;
 
            case 5:
-             temp = Xameuba_6;
+             temp = Xamoeba_6;
              break;
 
            case 6:
-             temp = Xameuba_7;
+             temp = Xamoeba_7;
              break;
 
            case 7:
-             temp = Xameuba_8;
+             temp = Xamoeba_8;
              break;
          }
 
          Cave[y][x] = temp;
          Next[y][x] = temp;
-         play[SAMPLE_drip] = 1;
+         play_element_sound(x, y, SOUND_drip, Xdrip_fall);
          goto loop;
       }
 
     /* --------------------------------------------------------------------- */
 
     case Xdrip_stretch:
-      Cave[y][x] = Ydrip_s2;
+      Cave[y][x] = Ydrip_2_s;
       Next[y][x] = Xdrip_fall;
       goto loop;
 
     case Xdrip_stretchB:
-      Cave[y][x] = Ydrip_s2B;
+      Cave[y][x] = Ydrip_2_sB;
       Next[y][x] = Xblank;
       goto loop;
 
-    case Xdrip_eat:
+    case Xdrip:
       Next[y][x] = Xdrip_fall;
       goto loop;
 
@@ -3901,16 +3923,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ybomb_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Ybomb_sB;
          Cave[y+1][x] = Ybomb_s;
          Next[y][x] = Xblank;
@@ -3945,8 +3967,8 @@ void synchro_2(void)
        case Xball_2:
        case Xnut:
        case Xnut_pause:
-       case Xgrow_ns:
-       case Xgrow_ew:
+       case Xslidewall_ns:
+       case Xslidewall_ew:
        case Xkey_1:
        case Xkey_2:
        case Xkey_3:
@@ -3957,10 +3979,10 @@ void synchro_2(void)
        case Xkey_8:
        case Xbumper:
        case Xswitch:
-       case Xround_wall_1:
-       case Xround_wall_2:
-       case Xround_wall_3:
-       case Xround_wall_4:
+       case Xroundwall_1:
+       case Xroundwall_2:
+       case Xroundwall_3:
+       case Xroundwall_4:
          if (RANDOM & 1)
          {
            if (tab_blank[Cave[y][x+1]] && tab_acid[Cave[y+1][x+1]])
@@ -4021,16 +4043,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ybomb_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Ybomb_sB;
          Cave[y+1][x] = Ybomb_s;
          Next[y][x] = Xblank;
@@ -4058,16 +4080,16 @@ void synchro_2(void)
        case Xacid_8:
          Cave[y][x] = Ybomb_sB;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
+           Cave[y][x-1] = Xacid_splash_w;
          Next[y][x] = Xblank;
-         PLAY(SAMPLE_acid);
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
+       case Xacid_splash_e:
+       case Xacid_splash_w:
          Cave[y][x] = Ybomb_sB;
          Cave[y+1][x] = Ybomb_s;
          Next[y][x] = Xblank;
@@ -4075,7 +4097,7 @@ void synchro_2(void)
          goto loop;
 
        default:
-         Cave[y][x] = Ybomb_eat;
+         Cave[y][x] = Ybomb_blank;
          Next[y][x] = Znormal;
          Boom[y-1][x-1] = Xblank;
          Boom[y-1][x] = Xblank;
@@ -4086,6 +4108,9 @@ void synchro_2(void)
          Boom[y+1][x-1] = Xblank;
          Boom[y+1][x] = Xblank;
          Boom[y+1][x+1] = Xblank;
+#if PLAY_ELEMENT_SOUND
+         play_element_sound(x, y, SOUND_boom, element);
+#endif
          goto loop;
       }
 
@@ -4110,16 +4135,16 @@ void synchro_2(void)
            case Xacid_8:
              Cave[y][x] = Yballoon_nB;
              if (Cave[y-2][x+1] == Xblank)
-               Cave[y-2][x+1] = Yacid_splash_eB;
+               Cave[y-2][x+1] = Xacid_splash_e;
              if (Cave[y-2][x-1] == Xblank)
-               Cave[y-2][x-1] = Yacid_splash_wB;
+               Cave[y-2][x-1] = Xacid_splash_w;
              Next[y][x] = Xblank;
-             PLAY(SAMPLE_acid);
+             play_element_sound(x, y, SOUND_acid, Xacid_1);
              goto loop;
 
            case Xblank:
-           case Yacid_splash_eB:
-           case Yacid_splash_wB:
+           case Xacid_splash_e:
+           case Xacid_splash_w:
              Cave[y][x] = Yballoon_nB;
              Cave[y-1][x] = Yballoon_n;
              Next[y][x] = Xblank;
@@ -4143,16 +4168,16 @@ void synchro_2(void)
            case Xacid_8:
              Cave[y][x] = Yballoon_eB;
              if (Cave[y-1][x+2] == Xblank)
-               Cave[y-1][x+2] = Yacid_splash_eB;
+               Cave[y-1][x+2] = Xacid_splash_e;
              if (Cave[y-1][x] == Xblank)
-               Cave[y-1][x] = Yacid_splash_wB;
+               Cave[y-1][x] = Xacid_splash_w;
              Next[y][x] = Xblank;
-             PLAY(SAMPLE_acid);
+             play_element_sound(x, y, SOUND_acid, Xacid_1);
              goto loop;
 
            case Xblank:
-           case Yacid_splash_eB:
-           case Yacid_splash_wB:
+           case Xacid_splash_e:
+           case Xacid_splash_w:
              Cave[y][x] = Yballoon_eB;
              Cave[y][x+1] = Yballoon_e;
              Next[y][x] = Xblank;
@@ -4176,16 +4201,16 @@ void synchro_2(void)
            case Xacid_8:
              Cave[y][x] = Yballoon_sB;
              if (Cave[y][x+1] == Xblank)
-               Cave[y][x+1] = Yacid_splash_eB;
+               Cave[y][x+1] = Xacid_splash_e;
              if (Cave[y][x-1] == Xblank)
-               Cave[y][x-1] = Yacid_splash_wB;
+               Cave[y][x-1] = Xacid_splash_w;
              Next[y][x] = Xblank;
-             PLAY(SAMPLE_acid);
+             play_element_sound(x, y, SOUND_acid, Xacid_1);
              goto loop;
 
            case Xblank:
-           case Yacid_splash_eB:
-           case Yacid_splash_wB:
+           case Xacid_splash_e:
+           case Xacid_splash_w:
              Cave[y][x] = Yballoon_sB;
              Cave[y+1][x] = Yballoon_s;
              Next[y][x] = Xblank;
@@ -4209,16 +4234,16 @@ void synchro_2(void)
            case Xacid_8:
              Cave[y][x] = Yballoon_wB;
              if (Cave[y-1][x] == Xblank)
-               Cave[y-1][x] = Yacid_splash_eB;
+               Cave[y-1][x] = Xacid_splash_e;
              if (Cave[y-1][x-2] == Xblank)
-               Cave[y-1][x-2] = Yacid_splash_wB;
+               Cave[y-1][x-2] = Xacid_splash_w;
              Next[y][x] = Xblank;
-             PLAY(SAMPLE_acid);
+             play_element_sound(x, y, SOUND_acid, Xacid_1);
              goto loop;
 
            case Xblank:
-           case Yacid_splash_eB:
-           case Yacid_splash_wB:
+           case Xacid_splash_e:
+           case Xacid_splash_w:
              Cave[y][x] = Yballoon_wB;
              Cave[y][x-1] = Yballoon_w;
              Next[y][x] = Xblank;
@@ -4264,13 +4289,45 @@ void synchro_2(void)
       Next[y][x] = Xacid_1;
       goto loop;
 
+    case Xfake_acid_1:
+      Next[y][x] = Xfake_acid_2;
+      goto loop;
+
+    case Xfake_acid_2:
+      Next[y][x] = Xfake_acid_3;
+      goto loop;
+
+    case Xfake_acid_3:
+      Next[y][x] = Xfake_acid_4;
+      goto loop;
+
+    case Xfake_acid_4:
+      Next[y][x] = Xfake_acid_5;
+      goto loop;
+
+    case Xfake_acid_5:
+      Next[y][x] = Xfake_acid_6;
+      goto loop;
+
+    case Xfake_acid_6:
+      Next[y][x] = Xfake_acid_7;
+      goto loop;
+
+    case Xfake_acid_7:
+      Next[y][x] = Xfake_acid_8;
+      goto loop;
+
+    case Xfake_acid_8:
+      Next[y][x] = Xfake_acid_1;
+      goto loop;
+
     /* --------------------------------------------------------------------- */
 
     case Xball_1:
       if (lev.ball_state == 0)
        goto loop;
 
-      Cave[y][x] = Xball_1B;
+      Cave[y][x] = Yball_1;
       Next[y][x] = Xball_2;
       if (lev.ball_cnt)
        goto loop;
@@ -4281,7 +4338,7 @@ void synchro_2(void)
       if (lev.ball_state == 0)
        goto loop;
 
-      Cave[y][x] = Xball_2B;
+      Cave[y][x] = Yball_2;
       Next[y][x] = Xball_1;
       if (lev.ball_cnt)
        goto loop;
@@ -4290,7 +4347,7 @@ void synchro_2(void)
 
     ball_common:
 
-      play[SAMPLE_ball] = 1;
+      play_element_sound(x, y, SOUND_ball, element);
       if (lev.ball_random)
       {
        switch (RANDOM & 7)
@@ -4299,7 +4356,7 @@ void synchro_2(void)
            if (lev.ball_array[lev.ball_pos][0] != Xblank &&
                tab_blank[Cave[y-1][x-1]])
            {
-             Cave[y-1][x-1] = Yball_eat;
+             Cave[y-1][x-1] = Yball_blank;
              Next[y-1][x-1] = lev.ball_array[lev.ball_pos][0];
            }
            break;
@@ -4308,7 +4365,7 @@ void synchro_2(void)
            if (lev.ball_array[lev.ball_pos][1] != Xblank &&
                tab_blank[Cave[y-1][x]])
            {
-             Cave[y-1][x] = Yball_eat;
+             Cave[y-1][x] = Yball_blank;
              Next[y-1][x] = lev.ball_array[lev.ball_pos][1];
            }
            break;
@@ -4317,7 +4374,7 @@ void synchro_2(void)
            if (lev.ball_array[lev.ball_pos][2] != Xblank &&
                tab_blank[Cave[y-1][x+1]])
            {
-             Cave[y-1][x+1] = Yball_eat;
+             Cave[y-1][x+1] = Yball_blank;
              Next[y-1][x+1] = lev.ball_array[lev.ball_pos][2];
            }
            break;
@@ -4326,7 +4383,7 @@ void synchro_2(void)
            if (lev.ball_array[lev.ball_pos][3] != Xblank &&
                tab_blank[Cave[y][x-1]])
            {
-             Cave[y][x-1] = Yball_eat;
+             Cave[y][x-1] = Yball_blank;
              Next[y][x-1] = lev.ball_array[lev.ball_pos][3];
            }
            break;
@@ -4335,7 +4392,7 @@ void synchro_2(void)
            if (lev.ball_array[lev.ball_pos][4] != Xblank &&
                tab_blank[Cave[y][x+1]])
            {
-             Cave[y][x+1] = Yball_eat;
+             Cave[y][x+1] = Yball_blank;
              Next[y][x+1] = lev.ball_array[lev.ball_pos][4];
            }
            break;
@@ -4344,7 +4401,7 @@ void synchro_2(void)
            if (lev.ball_array[lev.ball_pos][5] != Xblank &&
                tab_blank[Cave[y+1][x-1]])
            {
-             Cave[y+1][x-1] = Yball_eat;
+             Cave[y+1][x-1] = Yball_blank;
              Next[y+1][x-1] = lev.ball_array[lev.ball_pos][5];
            }
            break;
@@ -4353,7 +4410,7 @@ void synchro_2(void)
            if (lev.ball_array[lev.ball_pos][6] != Xblank &&
                tab_blank[Cave[y+1][x]])
            {
-             Cave[y+1][x] = Yball_eat;
+             Cave[y+1][x] = Yball_blank;
              Next[y+1][x] = lev.ball_array[lev.ball_pos][6];
            }
            break;
@@ -4362,7 +4419,7 @@ void synchro_2(void)
            if (lev.ball_array[lev.ball_pos][7] != Xblank &&
                tab_blank[Cave[y+1][x+1]])
            {
-             Cave[y+1][x+1] = Yball_eat;
+             Cave[y+1][x+1] = Yball_blank;
              Next[y+1][x+1] = lev.ball_array[lev.ball_pos][7];
            }
            break;
@@ -4373,95 +4430,96 @@ void synchro_2(void)
        if (lev.ball_array[lev.ball_pos][0] != Xblank &&
            tab_blank[Cave[y-1][x-1]])
        {
-         Cave[y-1][x-1] = Yball_eat;
+         Cave[y-1][x-1] = Yball_blank;
          Next[y-1][x-1] = lev.ball_array[lev.ball_pos][0];
        }
 
        if (lev.ball_array[lev.ball_pos][1] != Xblank &&
            tab_blank[Cave[y-1][x]])
        {
-         Cave[y-1][x] = Yball_eat;
+         Cave[y-1][x] = Yball_blank;
          Next[y-1][x] = lev.ball_array[lev.ball_pos][1];
        }
 
        if (lev.ball_array[lev.ball_pos][2] != Xblank &&
            tab_blank[Cave[y-1][x+1]])
        {
-         Cave[y-1][x+1] = Yball_eat;
+         Cave[y-1][x+1] = Yball_blank;
          Next[y-1][x+1] = lev.ball_array[lev.ball_pos][2];
        }
 
        if (lev.ball_array[lev.ball_pos][3] != Xblank &&
            tab_blank[Cave[y][x-1]])
        {
-         Cave[y][x-1] = Yball_eat;
+         Cave[y][x-1] = Yball_blank;
          Next[y][x-1] = lev.ball_array[lev.ball_pos][3];
        }
 
        if (lev.ball_array[lev.ball_pos][4] != Xblank &&
            tab_blank[Cave[y][x+1]])
        {
-         Cave[y][x+1] = Yball_eat;
+         Cave[y][x+1] = Yball_blank;
          Next[y][x+1] = lev.ball_array[lev.ball_pos][4];
        }
 
        if (lev.ball_array[lev.ball_pos][5] != Xblank &&
            tab_blank[Cave[y+1][x-1]])
        {
-         Cave[y+1][x-1] = Yball_eat;
+         Cave[y+1][x-1] = Yball_blank;
          Next[y+1][x-1] = lev.ball_array[lev.ball_pos][5];
        }
 
        if (lev.ball_array[lev.ball_pos][6] != Xblank &&
            tab_blank[Cave[y+1][x]])
        {
-         Cave[y+1][x] = Yball_eat;
+         Cave[y+1][x] = Yball_blank;
          Next[y+1][x] = lev.ball_array[lev.ball_pos][6];
        }
 
        if (lev.ball_array[lev.ball_pos][7] != Xblank &&
            tab_blank[Cave[y+1][x+1]])
        {
-         Cave[y+1][x+1] = Yball_eat;
+         Cave[y+1][x+1] = Yball_blank;
          Next[y+1][x+1] = lev.ball_array[lev.ball_pos][7];
        }
       }
 
-      lev.ball_pos = (lev.ball_pos + 1) & 7;
+      lev.ball_pos = (lev.ball_pos + 1) % lev.num_ball_arrays;
+
       goto loop;
 
     /* --------------------------------------------------------------------- */
 
-    case Xgrow_ns:
+    case Xslidewall_ns:
       if (tab_blank[Cave[y-1][x]])
       {
-       Cave[y-1][x] = Ygrow_ns_eat;
-       Next[y-1][x] = Xgrow_ns;
-       play[SAMPLE_grow] = 1;
+       Cave[y-1][x] = Yslidewall_ns_blank;
+       Next[y-1][x] = Xslidewall_ns;
+       play_element_sound(x, y, SOUND_slidewall, Xslidewall_ns);
       }
 
       if (tab_blank[Cave[y+1][x]])
       {
-       Cave[y+1][x] = Ygrow_ns_eat;
-       Next[y+1][x] = Xgrow_ns;
-       play[SAMPLE_grow] = 1;
+       Cave[y+1][x] = Yslidewall_ns_blank;
+       Next[y+1][x] = Xslidewall_ns;
+       play_element_sound(x, y, SOUND_slidewall, Xslidewall_ns);
       }
 
       goto loop;
 
-    case Xgrow_ew:
+    case Xslidewall_ew:
       if (tab_blank[Cave[y][x+1]])
       {
-       Cave[y][x+1] = Ygrow_ew_eat;
-       Next[y][x+1] = Xgrow_ew;
-       play[SAMPLE_grow] = 1;
+       Cave[y][x+1] = Yslidewall_ew_blank;
+       Next[y][x+1] = Xslidewall_ew;
+       play_element_sound(x, y, SOUND_slidewall, Xslidewall_ew);
       }
 
       if (tab_blank[Cave[y][x-1]])
       {
-       Cave[y][x-1] = Ygrow_ew_eat;
-       Next[y][x-1] = Xgrow_ew;
-       play[SAMPLE_grow] = 1;
+       Cave[y][x-1] = Yslidewall_ew_blank;
+       Next[y][x-1] = Xslidewall_ew;
+       play_element_sound(x, y, SOUND_slidewall, Xslidewall_ew);
       }
 
       goto loop;
@@ -4472,7 +4530,7 @@ void synchro_2(void)
       if (lev.wonderwall_time && lev.wonderwall_state)
       {
        Cave[y][x] = XwonderwallB;
-       play[SAMPLE_wonder] = 1;
+       play_element_sound(x, y, SOUND_wonder, Xwonderwall);
       }
 
       goto loop;
@@ -4500,6 +4558,8 @@ void synchro_2(void)
        Next[y][x] = Xexit_1;
       }
 
+      play_element_sound(x, y, SOUND_exit_open, Xexit);
+
       goto loop;
 
     case Xexit_1:
@@ -4517,22 +4577,22 @@ void synchro_2(void)
     /* --------------------------------------------------------------------- */
 
     case Xdynamite_1:
-      play[SAMPLE_tick] = 1;
+      play_element_sound(x, y, SOUND_tick, Xdynamite_1);
       Next[y][x] = Xdynamite_2;
       goto loop;
 
     case Xdynamite_2:
-      play[SAMPLE_tick] = 1;
+      play_element_sound(x, y, SOUND_tick, Xdynamite_2);
       Next[y][x] = Xdynamite_3;
       goto loop;
 
     case Xdynamite_3:
-      play[SAMPLE_tick] = 1;
+      play_element_sound(x, y, SOUND_tick, Xdynamite_3);
       Next[y][x] = Xdynamite_4;
       goto loop;
 
     case Xdynamite_4:
-      play[SAMPLE_tick] = 1;
+      play_element_sound(x, y, SOUND_tick, Xdynamite_4);
       Next[y][x] = Zdynamite;
       Boom[y-1][x-1] = Xblank;
       Boom[y-1][x] = Xblank;
@@ -4572,21 +4632,21 @@ void synchro_2(void)
        case Xacid_6:
        case Xacid_7:
        case Xacid_8:
-         Cave[y][x] = Xsand_stonesand_3;
+         Cave[y][x] = Xsand_stonesand_quickout_1;
          if (Cave[y][x+1] == Xblank)
-           Cave[y][x+1] = Yacid_splash_eB;
+           Cave[y][x+1] = Xacid_splash_e;
          if (Cave[y][x-1] == Xblank)
-           Cave[y][x-1] = Yacid_splash_wB;
-         Next[y][x] = Xsand_stonesand_4;
-         PLAY(SAMPLE_acid);
+           Cave[y][x-1] = Xacid_splash_w;
+         Next[y][x] = Xsand_stonesand_quickout_2;
+         play_element_sound(x, y, SOUND_acid, Xacid_1);
          goto loop;
 
        case Xblank:
-       case Yacid_splash_eB:
-       case Yacid_splash_wB:
-         Cave[y][x] = Xsand_stonesand_3;
+       case Xacid_splash_e:
+       case Xacid_splash_w:
+         Cave[y][x] = Xsand_stonesand_quickout_1;
          Cave[y+1][x] = Xsand_stoneout_1;
-         Next[y][x] = Xsand_stonesand_4;
+         Next[y][x] = Xsand_stonesand_quickout_2;
          Next[y+1][x] = Xsand_stoneout_2;
          goto loop;
 
@@ -4633,6 +4693,16 @@ void synchro_2(void)
       Next[y][x] = Xsand;
       goto loop;
 
+#if 1
+    case Xsand_stonesand_quickout_1:
+      Next[y][x] = Xsand_stonesand_quickout_2;
+      goto loop;
+
+    case Xsand_stonesand_quickout_2:
+      Next[y][x] = Xsand;
+      goto loop;
+#endif
+
     case Xsand_stoneout_1:
       Next[y][x] = Xsand_stoneout_2;
       goto loop;
@@ -4659,9 +4729,9 @@ void synchro_2(void)
 
     /* --------------------------------------------------------------------- */
 
-    case Xdripper:
+    case Xfake_amoeba:
       if (lev.lenses_cnt)
-       Cave[y][x] = XdripperB;
+       Cave[y][x] = Xfake_amoebaB;
       goto loop;
 
     /* --------------------------------------------------------------------- */
@@ -4734,6 +4804,9 @@ void synchro_2(void)
       Boom[y+1][x-1] = Xemerald;
       Boom[y+1][x] = Xemerald;
       Boom[y+1][x+1] = Xemerald;
+#if PLAY_ELEMENT_SOUND
+      play_element_sound(x, y, SOUND_boom, element);
+#endif
       goto loop;
 
     case Xboom_bomb:
@@ -4750,12 +4823,23 @@ void synchro_2(void)
       Boom[y+1][x-1] = Xblank;
       Boom[y+1][x] = Xblank;
       Boom[y+1][x+1] = Xblank;
+#if PLAY_ELEMENT_SOUND
+      play_element_sound(x, y, SOUND_boom, element);
+#endif
       goto loop;
 
     case Xboom_android:
+#if PLAY_ELEMENT_SOUND
+      play_element_sound(x, y, SOUND_boom, Xandroid);
+#endif
     case Xboom_1:
       Next[y][x] = Xboom_2;
-      play[SAMPLE_boom] = 1;
+#if !PLAY_ELEMENT_SOUND
+      if (x != lev.exit_x && y != lev.exit_y)
+       play_sound(x, y, SOUND_boom);
+      else
+       lev.exit_x = lev.exit_y = -1;
+#endif
       goto loop;
 
     case Xboom_2:
@@ -4764,7 +4848,7 @@ void synchro_2(void)
 
     /* --------------------------------------------------------------------- */
 
-    case ZBORDER:
+    case Zborder:
       if (++y < HEIGHT - 1)
       {
        x = 0;
@@ -4781,10 +4865,12 @@ void synchro_2(void)
 
  done:
 
-  if (ply1.alive || ply2.alive)
-    lev.score += score; /* only get a score if someone is alive */
+  if (ply[0].alive || ply[1].alive || ply[2].alive || ply[3].alive)
+    lev.score += score;                /* only add a score if someone is alive */
+  else
+    game_em.game_over = TRUE;
 
-  Random = random;
+  RandomEM = random;
 
   {
     void *temp = Cave;
@@ -4795,5 +4881,3 @@ void synchro_2(void)
     Draw = temp;
   }
 }
-
-#endif