X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Fgame_em%2Flogic.c;h=ba823a0ca86b20e6855ad35ba49d80862e5b36e6;hb=1006b2db;hp=7840734eaa75235a2d3a6b977be4b3f39c0ddf1e;hpb=63539da7f2d5e1ca071f0e4a9d897df0595d6ae5;p=rocksndiamonds.git

diff --git a/src/game_em/logic.c b/src/game_em/logic.c
index 7840734e..ba823a0c 100644
--- a/src/game_em/logic.c
+++ b/src/game_em/logic.c
@@ -12,6 +12,8 @@
 #define ACID_ROLL	/* rolling objects go into acid rather than remove it */
 #define ACID_PLAYER	/* player gets killed by acid, but without explosion */
 
+#define RANDOM_BUG	/* handle problem with old tapes using 64-bit random */
+
 #define RANDOM(x)	((seed = seed << 31 | seed >> 1) % x)
 
 static short **cave, **next, **boom;
@@ -165,7 +167,7 @@ static void Lboom_eater(int x, int y)
   boom[x][y+1]   = lev.eater_array[lev.eater_pos][7];
   boom[x+1][y+1] = lev.eater_array[lev.eater_pos][8];
 
-  lev.eater_pos = (lev.eater_pos + 1) % 8;
+  lev.eater_pos = (lev.eater_pos + 1) % lev.num_eater_arrays;
 
 #if PLAY_ELEMENT_SOUND
   play_element_sound(x, y, SOUND_boom, Xeater_n);
@@ -5744,6 +5746,8 @@ static void Lpush_emerald_e(int x, int y)
     case Xacid_6:
     case Xacid_7:
     case Xacid_8:
+      if (game_em.use_old_push_into_acid)
+	break;
       if (cave[x+2][y-1] == Xblank)
 	cave[x+2][y-1] = Xsplash_e;
       if (cave[x][y-1] == Xblank)
@@ -5790,6 +5794,8 @@ static void Lpush_emerald_w(int x, int y)
     case Xacid_6:
     case Xacid_7:
     case Xacid_8:
+      if (game_em.use_old_push_into_acid)
+	break;
       if (cave[x][y-1] == Xblank)
 	cave[x][y-1] = Xsplash_e;
       if (cave[x-2][y-1] == Xblank)
@@ -5836,6 +5842,8 @@ static void Lpush_diamond_e(int x, int y)
     case Xacid_6:
     case Xacid_7:
     case Xacid_8:
+      if (game_em.use_old_push_into_acid)
+	break;
       if (cave[x+2][y-1] == Xblank)
 	cave[x+2][y-1] = Xsplash_e;
       if (cave[x][y-1] == Xblank)
@@ -5882,6 +5890,8 @@ static void Lpush_diamond_w(int x, int y)
     case Xacid_6:
     case Xacid_7:
     case Xacid_8:
+      if (game_em.use_old_push_into_acid)
+	break;
       if (cave[x][y-1] == Xblank)
 	cave[x][y-1] = Xsplash_e;
       if (cave[x-2][y-1] == Xblank)
@@ -5928,6 +5938,8 @@ static void Lpush_stone_e(int x, int y)
     case Xacid_6:
     case Xacid_7:
     case Xacid_8:
+      if (game_em.use_old_push_into_acid)
+	break;
       if (cave[x+2][y-1] == Xblank)
 	cave[x+2][y-1] = Xsplash_e;
       if (cave[x][y-1] == Xblank)
@@ -5974,6 +5986,8 @@ static void Lpush_stone_w(int x, int y)
     case Xacid_6:
     case Xacid_7:
     case Xacid_8:
+      if (game_em.use_old_push_into_acid)
+	break;
       if (cave[x][y-1] == Xblank)
 	cave[x][y-1] = Xsplash_e;
       if (cave[x-2][y-1] == Xblank)
@@ -6020,6 +6034,8 @@ static void Lpush_bomb_e(int x, int y)
     case Xacid_6:
     case Xacid_7:
     case Xacid_8:
+      if (game_em.use_old_push_into_acid)
+	break;
       if (cave[x+2][y-1] == Xblank)
 	cave[x+2][y-1] = Xsplash_e;
       if (cave[x][y-1] == Xblank)
@@ -6066,6 +6082,8 @@ static void Lpush_bomb_w(int x, int y)
     case Xacid_6:
     case Xacid_7:
     case Xacid_8:
+      if (game_em.use_old_push_into_acid)
+	break;
       if (cave[x][y-1] == Xblank)
 	cave[x][y-1] = Xsplash_e;
       if (cave[x-2][y-1] == Xblank)
@@ -6112,6 +6130,8 @@ static void Lpush_nut_e(int x, int y)
     case Xacid_6:
     case Xacid_7:
     case Xacid_8:
+      if (game_em.use_old_push_into_acid)
+	break;
       if (cave[x+2][y-1] == Xblank)
 	cave[x+2][y-1] = Xsplash_e;
       if (cave[x][y-1] == Xblank)
@@ -6158,6 +6178,8 @@ static void Lpush_nut_w(int x, int y)
     case Xacid_6:
     case Xacid_7:
     case Xacid_8:
+      if (game_em.use_old_push_into_acid)
+	break;
       if (cave[x][y-1] == Xblank)
 	cave[x][y-1] = Xsplash_e;
       if (cave[x-2][y-1] == Xblank)
@@ -6204,6 +6226,8 @@ static void Lpush_spring_e(int x, int y)
     case Xacid_6:
     case Xacid_7:
     case Xacid_8:
+      if (game_em.use_old_push_into_acid)
+	break;
       if (cave[x+2][y-1] == Xblank)
 	cave[x+2][y-1] = Xsplash_e;
       if (cave[x][y-1] == Xblank)
@@ -6250,6 +6274,8 @@ static void Lpush_spring_w(int x, int y)
     case Xacid_6:
     case Xacid_7:
     case Xacid_8:
+      if (game_em.use_old_push_into_acid)
+	break;
       if (cave[x][y-1] == Xblank)
 	cave[x][y-1] = Xsplash_e;
       if (cave[x-2][y-1] == Xblank)
@@ -7461,7 +7487,11 @@ static void logic_globals(void)
   int x;
   int y;
   int count;
-  unsigned int random;
+#ifdef RANDOM_BUG
+  uint64_t random;
+#else
+  uint32_t random;
+#endif
 
   cave = lev.cave;
   next = lev.next;
@@ -7507,6 +7537,11 @@ static void logic_globals(void)
       Lamoeba(x, y);
 
     random = random * 129 + 1;
+
+#ifdef RANDOM_BUG
+    if (!game_em.use_random_bug)
+      random = (uint32_t)random;
+#endif
   }
 
   game_em.random = random;