X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;ds=sidebyside;f=src%2Fgame_em%2Femerald.h;h=1afbfbfc58f62850d9856741dcbd39d937b4c223;hb=320d4a2e79c5562cc55d83927e0ac4d05080ccb4;hp=1cf3deffc07d50d5ab76af5f8b7f31234ed88c89;hpb=52ae89df67ad56dbb6302fd9e85ad45279554a4c;p=rocksndiamonds.git

diff --git a/src/game_em/emerald.h b/src/game_em/emerald.h
index 1cf3deff..1afbfbfc 100644
--- a/src/game_em/emerald.h
+++ b/src/game_em/emerald.h
@@ -51,9 +51,14 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 /* define these to use additional elements */
 #define EM_ENGINE_USE_ADDITIONAL_ELEMENTS
 
-/* one border for Zborder elements, one border for steelwall, if needed */
-#define CAVE_WIDTH			(MAX_PLAYFIELD_WIDTH  + 2 + 2)
-#define CAVE_HEIGHT			(MAX_PLAYFIELD_HEIGHT + 2 + 2)
+#define CAVE_WIDTH			MAX_PLAYFIELD_WIDTH
+#define CAVE_HEIGHT			MAX_PLAYFIELD_HEIGHT
+
+/* additional padding for Zborder elements and linked cave buffer columns */
+#define CAVE_BUFFER_XOFFSET		4
+#define CAVE_BUFFER_YOFFSET		2
+#define CAVE_BUFFER_WIDTH		(CAVE_WIDTH  + 2 * CAVE_BUFFER_XOFFSET)
+#define CAVE_BUFFER_HEIGHT		(CAVE_HEIGHT + 2 * CAVE_BUFFER_YOFFSET)
 
 /*
   -----------------------------------------------------------------------------
@@ -631,6 +636,11 @@ struct LEVEL
   int width;			/* playfield width */
   int height;			/* playfield height */
 
+  int left;			/* playfield left edge */
+  int top;			/* playfield top edge */
+  int right;			/* playfield right edge */
+  int bottom;			/* playfield bottom edge */
+
   int time_seconds;		/* available time (seconds) */
   int time_initial;		/* available time (initial) */
   int time;			/* time remaining (runtime) */
@@ -701,15 +711,15 @@ struct LEVEL
 
   int exit_x, exit_y;		/* kludge for playing player exit sound */
 
-  short cavebuf[CAVE_WIDTH][CAVE_HEIGHT];
-  short nextbuf[CAVE_WIDTH][CAVE_HEIGHT];
-  short drawbuf[CAVE_WIDTH][CAVE_HEIGHT];
-  short boombuf[CAVE_WIDTH][CAVE_HEIGHT];
+  short cavebuf[CAVE_BUFFER_WIDTH][CAVE_BUFFER_HEIGHT];
+  short nextbuf[CAVE_BUFFER_WIDTH][CAVE_BUFFER_HEIGHT];
+  short drawbuf[CAVE_BUFFER_WIDTH][CAVE_BUFFER_HEIGHT];
+  short boombuf[CAVE_BUFFER_WIDTH][CAVE_BUFFER_HEIGHT];
 
-  short *cavecol[CAVE_WIDTH];
-  short *nextcol[CAVE_WIDTH];
-  short *drawcol[CAVE_WIDTH];
-  short *boomcol[CAVE_WIDTH];
+  short *cavecol[CAVE_BUFFER_WIDTH];
+  short *nextcol[CAVE_BUFFER_WIDTH];
+  short *drawcol[CAVE_BUFFER_WIDTH];
+  short *boomcol[CAVE_BUFFER_WIDTH];
 
   short **cave;
   short **next;