X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Fgame_em%2Fgraphics.c;h=fed6bcdf4616603627200a27f6f1f23bb279726f;hb=db0cf963a41d958dc11ee1d3cfb2b1f88cba7f76;hp=deee45a380a905e09b93cb2f02609659b33edfa2;hpb=113df1c4ad60b24a31ec6498f8cd3b2d4cd9dbfd;p=rocksndiamonds.git

diff --git a/src/game_em/graphics.c b/src/game_em/graphics.c
index deee45a3..fed6bcdf 100644
--- a/src/game_em/graphics.c
+++ b/src/game_em/graphics.c
@@ -93,7 +93,7 @@ void BlitScreenToBitmap_EM(Bitmap *target_bitmap)
   }
 }
 
-void blitscreen(void)
+void BackToFront_EM(void)
 {
   static boolean scrolling_last = FALSE;
   int left = screen_x / TILEX;
@@ -101,6 +101,8 @@ void blitscreen(void)
   boolean scrolling = (screen_x % TILEX != 0 || screen_y % TILEY != 0);
   int x, y;
 
+  SyncDisplay();
+
   if (redraw_tiles > REDRAWTILES_THRESHOLD || scrolling || scrolling_last)
   {
     /* blit all (up to four) parts of the scroll buffer to the backbuffer */
@@ -126,6 +128,8 @@ void blitscreen(void)
     }
   }
 
+  FlushDisplay();
+
   for (x = 0; x < MAX_BUF_XSIZE; x++)
     for (y = 0; y < MAX_BUF_YSIZE; y++)
       redraw[x][y] = FALSE;
@@ -134,11 +138,22 @@ void blitscreen(void)
   scrolling_last = scrolling;
 }
 
+void blitscreen(void)
+{
+  BackToFront_EM();
+}
+
 static void DrawLevelField_EM(int x, int y, int sx, int sy,
 			      boolean draw_masked)
 {
   int tile = Draw[y][x];
   struct GraphicInfo_EM *g = &graphic_info_em_object[tile][frame];
+
+#if 1
+  getGraphicSourceObjectExt_EM(tile, frame, &g->bitmap, &g->src_x, &g->src_y,
+			       x - 2, y - 2);
+#endif
+
   int src_x = g->src_x + g->src_offset_x;
   int src_y = g->src_y + g->src_offset_y;
   int dst_x = sx * TILEX + g->dst_offset_x;
@@ -239,6 +254,11 @@ static void DrawLevelPlayer_EM(int x1, int y1, int player_nr, int anim,
 {
   struct GraphicInfo_EM *g = &graphic_info_em_player[player_nr][anim][frame];
 
+#if 1
+  getGraphicSourcePlayerExt_EM(player_nr, anim, frame,
+			       &g->bitmap, &g->src_x, &g->src_y);
+#endif
+
   int src_x = g->src_x, src_y = g->src_y;
   int dst_x, dst_y;
 
@@ -348,7 +368,7 @@ static void animscreen(void)
       }
 
       /* only redraw screen tiles if they (or their crumbled state) changed */
-      if (screentiles[sy][sx] != obj || crumbled_state[sy][sx] != crm)
+      // if (screentiles[sy][sx] != obj || crumbled_state[sy][sx] != crm)
       {
 	DrawLevelField_EM(x, y, sx, sy, FALSE);
 	DrawLevelFieldCrumbled_EM(x, y, sx, sy, crm, FALSE);
@@ -443,9 +463,14 @@ static void blitplayer(struct PLAYER *ply)
       DrawLevelField_EM(new_x, new_y, new_sx, new_sy, TRUE);
     }
 
-    /* mark screen tiles as dirty */
+    /* redraw screen tiles in the next frame (player may have left the tiles) */
     screentiles[old_sy][old_sx] = -1;
     screentiles[new_sy][new_sx] = -1;
+
+    /* mark screen tiles as dirty (force screen refresh with changed content) */
+    redraw[old_sx][old_sy] = TRUE;
+    redraw[new_sx][new_sy] = TRUE;
+    redraw_tiles += 2;
   }
 }
 
@@ -869,14 +894,16 @@ void RedrawPlayfield_EM(boolean force_redraw)
 	blitplayer(&ply[i]);
 
       blitscreen();
-      FlushDisplay();
+
       Delay(wait_delay_value);
 
       /* scroll second step to align at full tile size */
       screen_x -= dxx;
       screen_y -= dyy;
 
+#if 0
       SyncDisplay();
+#endif
 
       animscreen();
 
@@ -884,7 +911,7 @@ void RedrawPlayfield_EM(boolean force_redraw)
 	blitplayer(&ply[i]);
 
       blitscreen();
-      FlushDisplay();
+
       Delay(wait_delay_value);
     }
 
@@ -912,7 +939,36 @@ void RedrawPlayfield_EM(boolean force_redraw)
 			    sy - offset_y > screen_y ? sy - offset_y :
 			    screen_y);
 
+#if 0
+  printf("::: (%d, %d) => (%d, %d) [(%d, %d), (%d, %d)] [%d, %d] [%d / %d]\n",
+	 screen_x_old, screen_y_old,
+	 screen_x, screen_y,
+	 ply[max_center_distance_player_nr].oldx,
+	 ply[max_center_distance_player_nr].x,
+	 ply[max_center_distance_player_nr].oldy,
+	 ply[max_center_distance_player_nr].y,
+	 sx, sy,
+	 ABS(screen_x - screen_x_old),
+	 ABS(screen_y - screen_y_old));
+#endif
+
+#if 1
+
 #if 1
+  /* prevent scrolling further than double player step size when scrolling */
+  if (ABS(screen_x - screen_x_old) > 2 * stepsize)
+  {
+    int dx = SIGN(screen_x - screen_x_old);
+
+    screen_x = screen_x_old + dx * 2 * stepsize;
+  }
+  if (ABS(screen_y - screen_y_old) > 2 * stepsize)
+  {
+    int dy = SIGN(screen_y - screen_y_old);
+
+    screen_y = screen_y_old + dy * 2 * stepsize;
+  }
+#else
   /* prevent scrolling further than double player step size when scrolling */
   if (ABS(screen_x - screen_x_old) > 2 * stepsize ||
       ABS(screen_y - screen_y_old) > 2 * stepsize)
@@ -923,6 +979,8 @@ void RedrawPlayfield_EM(boolean force_redraw)
     screen_x = screen_x_old + dx * 2 * stepsize;
     screen_y = screen_y_old + dy * 2 * stepsize;
   }
+#endif
+
 #else
   /* prevent scrolling further than player step size when scrolling */
   if (ABS(screen_x - screen_x_old) > stepsize ||
@@ -997,11 +1055,13 @@ void RedrawPlayfield_EM(boolean force_redraw)
   for (i = 0; i < MAX_PLAYERS; i++)
     blitplayer(&ply[i]);
 
+#if 0
+#if 0
   SyncDisplay();
+#endif
 
   blitscreen();
-
-  FlushDisplay();
+#endif
 }
 
 void game_animscreen(void)