moved initial cave data to level structure for EM engine
[rocksndiamonds.git] / src / game_em / reademc.c
index 2036e5cb6af9029a670de68ad19bcb63dc82a825..ed86409be6b36cb92cb6dfa944128cd105b2396b 100644 (file)
@@ -126,18 +126,196 @@ static const short map_emc[256] =
   Xblank,              Xblank,         Xalpha_copyr,   Xfake_acid_1
 };
 
-static int get_em_element(unsigned short em_element_raw, int file_version)
+static void init_android_clone_table(short android_clone_bits)
 {
-  int em_element = map_emc[em_element_raw];
+  boolean android_emerald      = (android_clone_bits & 1)      != 0;
+  boolean android_diamond      = (android_clone_bits & 2)      != 0;
+  boolean android_stone                = (android_clone_bits & 4)      != 0;
+  boolean android_bomb         = (android_clone_bits & 8)      != 0;
+  boolean android_nut          = (android_clone_bits & 16)     != 0;
+  boolean android_tank         = (android_clone_bits & 32)     != 0;
+  boolean android_eater                = (android_clone_bits & 64)     != 0;
+  boolean android_bug          = (android_clone_bits & 128)    != 0;
+  boolean android_alien                = (android_clone_bits & 256)    != 0;
+  boolean android_spring       = (android_clone_bits & 512)    != 0;
+  boolean android_balloon      = (android_clone_bits & 1024)   != 0;
+  boolean android_amoeba       = (android_clone_bits & 2048)   != 0;
+  boolean android_dynamite     = (android_clone_bits & 4096)   != 0;
+  int i;
+
+  for (i = 0; i < TILE_MAX; i++)
+    lev.android_array[i] = Xblank;
+
+  if (android_eater)
+  {
+    lev.android_array[Xeater_n]                = Xeater_n;
+    lev.android_array[Yeater_nB]       = Xeater_n;
+
+    lev.android_array[Xeater_e]                = Xeater_e;
+    lev.android_array[Yeater_eB]       = Xeater_e;
+
+    lev.android_array[Xeater_s]                = Xeater_s;
+    lev.android_array[Yeater_sB]       = Xeater_s;
+
+    lev.android_array[Xeater_w]                = Xeater_w;
+    lev.android_array[Yeater_wB]       = Xeater_w;
+  }
+
+  if (android_alien)
+  {
+    lev.android_array[Xalien]          = Xalien;
+    lev.android_array[Xalien_pause]    = Xalien;
+    lev.android_array[Yalien_nB]       = Xalien;
+    lev.android_array[Yalien_eB]       = Xalien;
+    lev.android_array[Yalien_sB]       = Xalien;
+    lev.android_array[Yalien_wB]       = Xalien;
+  }
+
+  if (android_bug)
+  {
+    lev.android_array[Xbug_1_n]                = Xbug_2_n;
+    lev.android_array[Xbug_2_n]                = Xbug_2_n;
+    lev.android_array[Ybug_nB]         = Xbug_2_n;
+    lev.android_array[Ybug_n_e]                = Xbug_2_n;
+    lev.android_array[Ybug_n_w]                = Xbug_2_n;
+
+    lev.android_array[Xbug_1_e]                = Xbug_2_e;
+    lev.android_array[Xbug_2_e]                = Xbug_2_e;
+    lev.android_array[Ybug_eB]         = Xbug_2_e;
+    lev.android_array[Ybug_e_s]                = Xbug_2_e;
+    lev.android_array[Ybug_e_n]                = Xbug_2_e;
+
+    lev.android_array[Xbug_1_s]                = Xbug_2_s;
+    lev.android_array[Xbug_2_s]                = Xbug_2_s;
+    lev.android_array[Ybug_sB]         = Xbug_2_s;
+    lev.android_array[Ybug_s_w]                = Xbug_2_s;
+    lev.android_array[Ybug_s_e]                = Xbug_2_s;
+
+    lev.android_array[Xbug_1_w]                = Xbug_2_w;
+    lev.android_array[Xbug_2_w]                = Xbug_2_w;
+    lev.android_array[Ybug_wB]         = Xbug_2_w;
+    lev.android_array[Ybug_w_n]                = Xbug_2_w;
+    lev.android_array[Ybug_w_s]                = Xbug_2_w;
+  }
+
+  if (android_tank)
+  {
+    lev.android_array[Xtank_1_n]       = Xtank_1_n;
+    lev.android_array[Xtank_2_n]       = Xtank_1_n;
+    lev.android_array[Ytank_nB]                = Xtank_1_n;
+    lev.android_array[Ytank_n_e]       = Xtank_1_n;
+    lev.android_array[Ytank_n_w]       = Xtank_1_n;
+
+    lev.android_array[Xtank_1_e]       = Xtank_1_e;
+    lev.android_array[Xtank_2_e]       = Xtank_1_e;
+    lev.android_array[Ytank_eB]                = Xtank_1_e;
+    lev.android_array[Ytank_e_s]       = Xtank_1_e;
+    lev.android_array[Ytank_e_n]       = Xtank_1_e;
+
+    lev.android_array[Xtank_1_s]       = Xtank_1_s;
+    lev.android_array[Xtank_2_s]       = Xtank_1_s;
+    lev.android_array[Ytank_sB]                = Xtank_1_s;
+    lev.android_array[Ytank_s_w]       = Xtank_1_s;
+    lev.android_array[Ytank_s_e]       = Xtank_1_s;
+
+    lev.android_array[Xtank_1_w]       = Xtank_1_w;
+    lev.android_array[Xtank_2_w]       = Xtank_1_w;
+    lev.android_array[Ytank_wB]                = Xtank_1_w;
+    lev.android_array[Ytank_w_n]       = Xtank_1_w;
+    lev.android_array[Ytank_w_s]       = Xtank_1_w;
+  }
 
-  if (file_version < FILE_VERSION_EM_V5)
+  if (android_emerald)
   {
-    /* versions below V5 had no grass, but only sand/dirt */
-    if (em_element == Xgrass)
-      em_element = Xdirt;
+    lev.android_array[Xemerald]                = Xemerald;
+    lev.android_array[Xemerald_pause]  = Xemerald;
+    lev.android_array[Xemerald_fall]   = Xemerald;
+    lev.android_array[Yemerald_sB]     = Xemerald;
+    lev.android_array[Yemerald_eB]     = Xemerald;
+    lev.android_array[Yemerald_wB]     = Xemerald;
   }
 
-  return em_element;
+  if (android_diamond)
+  {
+    lev.android_array[Xdiamond]                = Xdiamond;
+    lev.android_array[Xdiamond_pause]  = Xdiamond;
+    lev.android_array[Xdiamond_fall]   = Xdiamond;
+    lev.android_array[Ydiamond_sB]     = Xdiamond;
+    lev.android_array[Ydiamond_eB]     = Xdiamond;
+    lev.android_array[Ydiamond_wB]     = Xdiamond;
+  }
+
+  if (android_stone)
+  {
+    lev.android_array[Xstone]          = Xstone;
+    lev.android_array[Xstone_pause]    = Xstone;
+    lev.android_array[Xstone_fall]     = Xstone;
+    lev.android_array[Ystone_sB]       = Xstone;
+    lev.android_array[Ystone_eB]       = Xstone;
+    lev.android_array[Ystone_wB]       = Xstone;
+  }
+
+  if (android_bomb)
+  {
+    lev.android_array[Xbomb]           = Xbomb;
+    lev.android_array[Xbomb_pause]     = Xbomb;
+    lev.android_array[Xbomb_fall]      = Xbomb;
+    lev.android_array[Ybomb_sB]                = Xbomb;
+    lev.android_array[Ybomb_eB]                = Xbomb;
+    lev.android_array[Ybomb_wB]                = Xbomb;
+  }
+
+  if (android_nut)
+  {
+    lev.android_array[Xnut]            = Xnut;
+    lev.android_array[Xnut_pause]      = Xnut;
+    lev.android_array[Xnut_fall]       = Xnut;
+    lev.android_array[Ynut_sB]         = Xnut;
+    lev.android_array[Ynut_eB]         = Xnut;
+    lev.android_array[Ynut_wB]         = Xnut;
+  }
+
+  if (android_spring)
+  {
+    lev.android_array[Xspring]         = Xspring;
+    lev.android_array[Xspring_pause]   = Xspring;
+    lev.android_array[Xspring_fall]    = Xspring;
+    lev.android_array[Xspring_e]       = Xspring;
+    lev.android_array[Xspring_w]       = Xspring;
+    lev.android_array[Yspring_sB]      = Xspring;
+    lev.android_array[Yspring_eB]      = Xspring;
+    lev.android_array[Yspring_wB]      = Xspring;
+    lev.android_array[Yspring_alien_eB]        = Xspring;
+    lev.android_array[Yspring_alien_wB]        = Xspring;
+  }
+
+  if (android_dynamite)
+  {
+    lev.android_array[Xdynamite]       = Xdynamite;
+  }
+
+  if (android_balloon)
+  {
+    lev.android_array[Xballoon]                = Xballoon;
+    lev.android_array[Yballoon_nB]     = Xballoon;
+    lev.android_array[Yballoon_eB]     = Xballoon;
+    lev.android_array[Yballoon_sB]     = Xballoon;
+    lev.android_array[Yballoon_wB]     = Xballoon;
+  }
+
+  if (android_amoeba)
+  {
+    lev.android_array[Xfake_amoeba]    = Xdrip;
+    lev.android_array[Yfake_amoeba]    = Xdrip;
+    lev.android_array[Xamoeba_1]       = Xdrip;
+    lev.android_array[Xamoeba_2]       = Xdrip;
+    lev.android_array[Xamoeba_3]       = Xdrip;
+    lev.android_array[Xamoeba_4]       = Xdrip;
+    lev.android_array[Xamoeba_5]       = Xdrip;
+    lev.android_array[Xamoeba_6]       = Xdrip;
+    lev.android_array[Xamoeba_7]       = Xdrip;
+    lev.android_array[Xamoeba_8]       = Xdrip;
+  }
 }
 
 void convert_em_level(unsigned char *src, int file_version)
@@ -149,30 +327,15 @@ void convert_em_level(unsigned char *src, int file_version)
   };
   int i, x, y, temp;
 
+  /* common to all emc caves */
+
   lev.time_seconds = GET_BE16(src[2110]);
   if (lev.time_seconds > 9999)
     lev.time_seconds = 9999;
 
   lev.required_initial = src[2095];
 
-  for (i = 0; i < 2; i++)
-  {
-    temp = GET_BE16(src[2096 + i * 2]);
-    ply[i].x_initial = (temp & 63);
-    ply[i].y_initial = (temp >> 6 & 31);
-  }
-
-  temp = GET_BE16(src[2100]) * 28;
-  if (temp > 9999)
-    temp = 9999;
-  lev.amoeba_time = temp;
-
-  lev.android_move_time  = GET_BE16(src[2164]);
-  lev.android_clone_time = GET_BE16(src[2166]);
-
-  lev.ball_random       = src[2162] & 1   ? 1 : 0;
-  lev.ball_state_initial = src[2162] & 128 ? 1 : 0;
-  lev.ball_time                 = GET_BE16(src[2160]);
+  /* scores */
 
   lev.emerald_score    = src[2084];
   lev.diamond_score    = src[2085];
@@ -189,25 +352,75 @@ void convert_em_level(unsigned char *src, int file_version)
   lev.magnify_score    = src[2152];
   lev.slurp_score      = src[2153];
 
+  /* times */
+
+  lev.android_move_time  = GET_BE16(src[2164]);
+  lev.android_clone_time = GET_BE16(src[2166]);
+  lev.ball_time                 = GET_BE16(src[2160]);
+
   lev.lenses_time      = GET_BE16(src[2154]);
   lev.magnify_time     = GET_BE16(src[2156]);
   lev.wheel_time       = GET_BE16(src[2104]);
 
+  temp = GET_BE16(src[2100]) * 28;
+  if (temp > 9999)
+    temp = 9999;
+  lev.amoeba_time = temp;
+
+  lev.wonderwall_time_initial = GET_BE16(src[2102]);
+
   lev.wind_cnt_initial = src[2149] & 15 ? lev.wind_time : 0;
   temp = src[2149];
   lev.wind_direction_initial = (temp & 8 ? 0 :
                                temp & 1 ? 1 :
                                temp & 2 ? 2 :
                                temp & 4 ? 3 : 0);
+  /* global flags */
 
-  lev.wonderwall_time_initial = GET_BE16(src[2102]);
+  lev.ball_random       = src[2162] & 1   ? 1 : 0;
+  lev.ball_state_initial = src[2162] & 128 ? 1 : 0;
+
+  for (temp = 1; temp < 2047; temp++)
+  {
+    switch (src[temp])
+    {
+      case 36:                                 /* wonderwall */
+       lev.wonderwall_state_initial = 1;
+       lev.wonderwall_time_initial = 9999;
+       break;
+
+      case 40:                                 /* wheel */
+       lev.wheel_x_initial = temp & 63;
+       lev.wheel_y_initial = temp >> 6;
+       lev.wheel_cnt_initial = lev.wheel_time;
+       break;
+
+      case 163:                                        /* fake blank */
+       lev.lenses_cnt_initial = 9999;
+       break;
+
+      case 164:                                        /* fake grass */
+       lev.magnify_cnt_initial = 9999;
+       break;
+    }
+  }
+
+  /* android */
+
+  temp = GET_BE16(src[2168]);
+
+  init_android_clone_table(temp);
+
+  /* eaters */
 
   for (i = 0; i < 8; i++)
     for (x = 0; x < 9; x++)
-      lev.eater_array[i][x] =
-       get_em_element(src[eater_offset[i] + x], file_version);
+      lev.eater_array[i][x] = map_emc[src[eater_offset[i] + x]];
+
+  /* ball */
+
+  temp = map_emc[src[2159]];
 
-  temp = get_em_element(src[2159], file_version);
   for (y = 0; y < 8; y++)
   {
     if (src[2162] & 1)
@@ -228,63 +441,33 @@ void convert_em_level(unsigned char *src, int file_version)
     }
   }
 
-  temp = GET_BE16(src[2168]);
-
-  lev.android_emerald  = (temp & 1)    != 0;
-  lev.android_diamond  = (temp & 2)    != 0;
-  lev.android_stone    = (temp & 4)    != 0;
-  lev.android_bomb     = (temp & 8)    != 0;
-  lev.android_nut      = (temp & 16)   != 0;
-  lev.android_tank     = (temp & 32)   != 0;
-  lev.android_eater    = (temp & 64)   != 0;
-  lev.android_bug      = (temp & 128)  != 0;
-  lev.android_alien    = (temp & 256)  != 0;
-  lev.android_spring   = (temp & 512)  != 0;
-  lev.android_balloon  = (temp & 1024) != 0;
-  lev.android_amoeba   = (temp & 2048) != 0;
-  lev.android_dynamite = (temp & 4096) != 0;
+  /* players */
 
-  for (temp = 1; temp < 2047; temp++)
+  for (i = 0; i < 2; i++)
   {
-    switch (src[temp])
-    {
-      case 36:                                 /* wonderwall */
-       lev.wonderwall_state_initial = 1;
-       lev.wonderwall_time_initial = 9999;
-       break;
-
-      case 40:                                 /* wheel */
-       lev.wheel_x_initial = temp & 63;
-       lev.wheel_y_initial = temp >> 6;
-       lev.wheel_cnt_initial = lev.wheel_time;
-       break;
-
-      case 163:                                        /* fake blank */
-       lev.lenses_cnt_initial = 9999;
-       break;
+    temp = GET_BE16(src[2096 + i * 2]);
 
-      case 164:                                        /* fake grass */
-       lev.magnify_cnt_initial = 9999;
-       break;
-    }
+    lev.player_x[i] = (temp & 63);
+    lev.player_y[i] = (temp >> 6 & 31);
   }
 
+  /* cave */
+
   /* first fill the complete playfield with the default border element */
   for (y = 0; y < CAVE_HEIGHT; y++)
     for (x = 0; x < CAVE_WIDTH; x++)
-      native_em_level.cave[x][y] = Zborder;
+      lev.cave_raw[x][y] = Zborder;
 
   /* then copy the real level contents from level file into the playfield */
   temp = 0;
   for (y = 0; y < lev.height; y++)
     for (x = 0; x < lev.width; x++)
-      native_em_level.cave[x][y] =
-       get_em_element(src[temp++], file_version);
+      lev.cave_raw[x][y] = map_emc[src[temp++]];
 
   /* at last, set the two players at their positions in the playfield */
   /* (native EM[C] levels always have exactly two players in a level) */
   for (i = 0; i < 2; i++)
-    native_em_level.cave[ply[i].x_initial][ply[i].y_initial] = Zplayer;
+    lev.cave_raw[lev.player_x[i]][lev.player_y[i]] = Zplayer;
 
   native_em_level.file_version = file_version;
 }
@@ -312,6 +495,14 @@ void convert_em_level(unsigned char *src, int file_version)
  * wrong bug(24 instead of 20) and tank(12 instead of 8).
  */
 
+/* changes for game engine integration in Rocks'n'Diamonds:
+ *
+ * cave versions below V5 had no grass, but only sand/dirt
+ * - object code 130 (V6 grass) is changed to 189 (V6 dirt)
+ * - object codes are changed in both cave and eater arrays
+ * - only graphical change, as both objects behave the same
+ */
+
 static const unsigned char map_v6[256] =
 {
   /* filter for v6 */
@@ -376,7 +567,7 @@ static const unsigned char map_v4[256] =
   153,153,153,153, 153,153,153,153, 153,153,153,153, 153,153,153,153,
   153,118,114,115, 131,118,118,119, 120,121,122,118, 118,118,118,118,
 
-  128,129,130,131, 132,133,134,135, 136,137,138,139, 140,141,142,143,
+  128,129,189,131, 132,133,134,135, 136,137,138,139, 140,141,142,143,
   144,145,146,147, 148,149,150,151, 152,68,154,155,  156,157,158,160,
   160,160,160,160, 160,160,160,160, 160,160,160,160, 160,160,160,175,
   153,153,153,153, 153,153,153,153, 153,153,153,153, 153,153,68,153,
@@ -391,7 +582,7 @@ static const unsigned char map_v4_eater[32] =
 {
   /* filter for v4 eater */
 
-  128,18,2,0,      4,8,16,20,       28,37,41,45,     130,129,131,132,
+  128,18,2,0,      4,8,16,20,       28,37,41,45,     189,129,131,132,
   133,134,135,136, 146,147,175,65,  66,64,2,18,      128,128,128,128
 };