From: Holger Schemel <info@artsoft.org>
Date: Fri, 19 Nov 2021 10:26:43 +0000 (+0100)
Subject: added graphics animation mode "random_static" (unchanged for each tile)
X-Git-Tag: 4.3.1.0~24
X-Git-Url: https://git.artsoft.org/?a=commitdiff_plain;h=207dd0ba7951139a27a87a091c7eb98c395f3c70;p=rocksndiamonds.git

added graphics animation mode "random_static" (unchanged for each tile)
---

diff --git a/src/files.c b/src/files.c
index 9a4999b8..a0e77bcc 100644
--- a/src/files.c
+++ b/src/files.c
@@ -11978,6 +11978,7 @@ int get_parameter_value(char *value_raw, char *suffix, int type)
 	      string_has_parameter(value, "pingpong")	? ANIM_PINGPONG :
 	      string_has_parameter(value, "pingpong2")	? ANIM_PINGPONG2 :
 	      string_has_parameter(value, "random")	? ANIM_RANDOM :
+	      string_has_parameter(value, "random_static") ? ANIM_RANDOM_STATIC :
 	      string_has_parameter(value, "ce_value")	? ANIM_CE_VALUE :
 	      string_has_parameter(value, "ce_score")	? ANIM_CE_SCORE :
 	      string_has_parameter(value, "ce_delay")	? ANIM_CE_DELAY :
diff --git a/src/game.c b/src/game.c
index 0383a35f..d4c04025 100644
--- a/src/game.c
+++ b/src/game.c
@@ -3878,6 +3878,7 @@ void InitGame(void)
 
     GfxFrame[x][y] = 0;
     GfxRandom[x][y] = INIT_GFX_RANDOM();
+    GfxRandomStatic[x][y] = INIT_GFX_RANDOM();
     GfxElement[x][y] = EL_UNDEFINED;
     GfxAction[x][y] = ACTION_DEFAULT;
     GfxDir[x][y] = MV_NONE;
@@ -15968,6 +15969,7 @@ static ListNode *SaveEngineSnapshotBuffers(void)
 
   SaveSnapshotBuffer(&buffers, ARGS_ADDRESS_AND_SIZEOF(GfxFrame));
   SaveSnapshotBuffer(&buffers, ARGS_ADDRESS_AND_SIZEOF(GfxRandom));
+  SaveSnapshotBuffer(&buffers, ARGS_ADDRESS_AND_SIZEOF(GfxRandomStatic));
   SaveSnapshotBuffer(&buffers, ARGS_ADDRESS_AND_SIZEOF(GfxElement));
   SaveSnapshotBuffer(&buffers, ARGS_ADDRESS_AND_SIZEOF(GfxAction));
   SaveSnapshotBuffer(&buffers, ARGS_ADDRESS_AND_SIZEOF(GfxDir));
diff --git a/src/libgame/system.h b/src/libgame/system.h
index 90a7fe4f..327cba88 100644
--- a/src/libgame/system.h
+++ b/src/libgame/system.h
@@ -370,6 +370,7 @@
 #define ANIM_ALL		(1 << 14)
 #define ANIM_ONCE		(1 << 15)
 #define ANIM_TILED		(1 << 16)
+#define ANIM_RANDOM_STATIC	(1 << 17)
 
 #define ANIM_DEFAULT		ANIM_LOOP
 
diff --git a/src/main.c b/src/main.c
index 8dd3712b..1d99a74d 100644
--- a/src/main.c
+++ b/src/main.c
@@ -67,6 +67,7 @@ int			PlayerVisit[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 
 int			GfxFrame[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 int 			GfxRandom[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
+int 			GfxRandomStatic[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 int 			GfxElement[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 int			GfxAction[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 int 			GfxDir[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
diff --git a/src/main.h b/src/main.h
index ea915a9a..14c2e885 100644
--- a/src/main.h
+++ b/src/main.h
@@ -3738,6 +3738,7 @@ extern int			PlayerVisit[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 
 extern int			GfxFrame[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 extern int			GfxRandom[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
+extern int			GfxRandomStatic[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 extern int 			GfxElement[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 extern int			GfxAction[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
 extern int 			GfxDir[MAX_LEV_FIELDX][MAX_LEV_FIELDY];
diff --git a/src/tools.c b/src/tools.c
index 0271abfc..bf79b048 100644
--- a/src/tools.c
+++ b/src/tools.c
@@ -1496,6 +1496,15 @@ int getGraphicAnimationFrameXY(int graphic, int lx, int ly)
 
     return sync_frame % g->anim_frames;
   }
+  else if (graphic_info[graphic].anim_mode & ANIM_RANDOM_STATIC)
+  {
+    struct GraphicInfo *g = &graphic_info[graphic];
+    int x = (lx + lev_fieldx) % lev_fieldx;
+    int y = (ly + lev_fieldy) % lev_fieldy;
+    int sync_frame = GfxRandomStatic[x][y];
+
+    return sync_frame % g->anim_frames;
+  }
 
   return getGraphicAnimationFrame(graphic, GfxFrame[lx][ly]);
 }
@@ -3951,7 +3960,7 @@ void DrawLevelGraphicAnimationIfNeeded(int x, int y, int graphic)
   if (!IS_NEW_FRAME(GfxFrame[x][y], graphic))
     return;
 
-  if (ANIM_MODE(graphic) & ANIM_TILED)
+  if (ANIM_MODE(graphic) & (ANIM_TILED | ANIM_RANDOM_STATIC))
     return;
 
   DrawGraphicAnimation(sx, sy, graphic);