static void blitplayer(struct PLAYER *ply)
{
- unsigned int x, y, dx, dy;
- unsigned short obj, spr;
+ int dx, dy;
+ int old_x, old_y, new_x, new_y;
int src_x, src_y, dst_x, dst_y;
+ int tile;
+ struct GraphicInfo_EM *g;
+ unsigned int x1, y1, x2, y2;
+#if 1
+ unsigned short spr;
+#else
+ unsigned short obj, spr;
+#endif
if (!ply->alive)
return;
- x = (frame * ply->oldx + (8 - frame) * ply->x) * TILEX / 8;
- y = (frame * ply->oldy + (8 - frame) * ply->y) * TILEY / 8;
- dx = x + TILEX - 1;
- dy = y + TILEY - 1;
-
- if ((unsigned int)(dx - screen_x) < ((MAX_BUF_XSIZE - 1) * TILEX - 1) &&
- (unsigned int)(dy - screen_y) < ((MAX_BUF_YSIZE - 1) * TILEY - 1))
+ /* some casts to "int" are needed because of negative calculation values */
+ dx = (int)ply->x - (int)ply->oldx;
+ dy = (int)ply->y - (int)ply->oldy;
+ old_x = (int)ply->oldx + (7 - (int)frame) * dx / 8;
+ old_y = (int)ply->oldy + (7 - (int)frame) * dy / 8;
+ new_x = old_x + SIGN(dx);
+ new_y = old_y + SIGN(dy);
+
+ /* x1/y1 are left/top and x2/y2 are right/down part of the player movement */
+ x1 = (frame * ply->oldx + (8 - frame) * ply->x) * TILEX / 8;
+ y1 = (frame * ply->oldy + (8 - frame) * ply->y) * TILEY / 8;
+ x2 = x1 + TILEX - 1;
+ y2 = y1 + TILEY - 1;
+
+ if ((unsigned int)(x2 - screen_x) < ((MAX_BUF_XSIZE - 1) * TILEX - 1) &&
+ (unsigned int)(y2 - screen_y) < ((MAX_BUF_YSIZE - 1) * TILEY - 1))
{
spr = map_spr[ply->num][frame][ply->anim];
- x %= MAX_BUF_XSIZE * TILEX;
- y %= MAX_BUF_YSIZE * TILEY;
- dx %= MAX_BUF_XSIZE * TILEX;
- dy %= MAX_BUF_YSIZE * TILEY;
+ x1 %= MAX_BUF_XSIZE * TILEX;
+ y1 %= MAX_BUF_YSIZE * TILEY;
+ x2 %= MAX_BUF_XSIZE * TILEX;
+ y2 %= MAX_BUF_YSIZE * TILEY;
#if 1
/* draw the player to current location */
BlitBitmap(sprBitmap, screenBitmap,
(spr / 8) * TILEX, (spr % 8) * TILEY, TILEX, TILEY,
- x, y);
+ x1, y1);
/* draw the player to opposite wrap-around column */
BlitBitmap(sprBitmap, screenBitmap,
(spr / 8) * TILEX, (spr % 8) * TILEY, TILEX, TILEY,
- x - MAX_BUF_XSIZE * TILEX, y),
+ x1 - MAX_BUF_XSIZE * TILEX, y1),
/* draw the player to opposite wrap-around row */
BlitBitmap(sprBitmap, screenBitmap,
(spr / 8) * TILEX, (spr % 8) * TILEY, TILEX, TILEY,
- x, y - MAX_BUF_YSIZE * TILEY);
+ x1, y1 - MAX_BUF_YSIZE * TILEY);
/* draw the field the player is moving from (masked over the player) */
- obj = screentiles[y / TILEY][x / TILEX];
+#if 0
+ obj = screentiles[y1 / TILEY][x1 / TILEX];
src_x = (obj / 512) * TILEX;
src_y = (obj % 512) * TILEY / 16;
- dst_x = (x / TILEX) * TILEX;
- dst_y = (y / TILEY) * TILEY;
+ dst_x = (x1 / TILEX) * TILEX;
+ dst_y = (y1 / TILEY) * TILEY;
+#endif
#if 1
-#if 0
- {
- int tile = Draw[ply->oldy][ply->oldx];
- struct GraphicInfo_EM *g = &graphic_info_em[tile][frame];
+ tile = Draw[old_y][old_x];
+ g = &graphic_info_em[tile][frame];
- if (g->width > 0 && g->height > 0)
- {
- src_x = g->src_x + g->src_offset_x;
- src_y = g->src_y + g->src_offset_y;
- dst_x = ply->oldx % MAX_BUF_XSIZE * TILEX + g->dst_offset_x;
- dst_y = ply->oldy % MAX_BUF_YSIZE * TILEY + g->dst_offset_y;
-
- SetClipOrigin(g->bitmap, g->bitmap->stored_clip_gc,
- dst_x - src_x, dst_y - src_y);
- BlitBitmapMasked(g->bitmap, screenBitmap,
- src_x, src_y, g->width, g->height, dst_x, dst_y);
- }
+ if (g->width > 0 && g->height > 0)
+ {
+ src_x = g->src_x + g->src_offset_x;
+ src_y = g->src_y + g->src_offset_y;
+ dst_x = old_x % MAX_BUF_XSIZE * TILEX + g->dst_offset_x;
+ dst_y = old_y % MAX_BUF_YSIZE * TILEY + g->dst_offset_y;
+
+ SetClipOrigin(g->bitmap, g->bitmap->stored_clip_gc,
+ dst_x - src_x, dst_y - src_y);
+ BlitBitmapMasked(g->bitmap, screenBitmap,
+ src_x, src_y, g->width, g->height, dst_x, dst_y);
}
#else
SetClipOrigin(objBitmap, objBitmap->stored_clip_gc,
dst_x - src_x, dst_y - src_y);
BlitBitmapMasked(objBitmap, screenBitmap,
src_x, src_y, TILEX, TILEY, dst_x, dst_y);
-#endif
#endif
/* draw the field the player is moving to (masked over the player) */
- obj = screentiles[dy / TILEY][dx / TILEX];
+#if 0
+ obj = screentiles[y2 / TILEY][x2 / TILEX];
src_x = (obj / 512) * TILEX;
src_y = (obj % 512) * TILEY / 16;
- dst_x = (dx / TILEX) * TILEX;
- dst_y = (dy / TILEY) * TILEY;
+ dst_x = (x2 / TILEX) * TILEX;
+ dst_y = (y2 / TILEY) * TILEY;
+#endif
#if 1
-#if 1
+ tile = Draw[new_y][new_x];
+ g = &graphic_info_em[tile][frame];
+
+ if (g->width > 0 && g->height > 0)
{
- /*
- d? == 1:
- 0-3: 0, 1
- 4-7: 0, 1
-
- d? == 2:
- 0-3: 0, 1
- 4-7: 1, 2
- */
-
- int dx = (ply->x - ply->oldx);
- int dy = (ply->y - ply->oldy);
- int old_x = ply->oldx ;
- int old_y = ply->oldy ;
- int new_x = ply->oldx ;
- int new_y = ply->oldy ;
- int xxx = (frame * ply->oldx + (8 - frame) * ply->x) / 8;
- int yyy = (frame * ply->oldy + (8 - frame) * ply->y) / 8;
- int tileXXX = Draw[ply->y][ply->x];
- int tile = Draw[ply->y][ply->x];
- struct GraphicInfo_EM *g = &graphic_info_em[tile][frame];
- int xx = ply->x - 1, yy = ply->y;
-
- printf("::: %d: %d,%d -> %d,%d: %d, %d, %d, %d [%d,%d] <-> ",
- frame, ply->oldx, ply->oldy, ply->x, ply->y,
- src_x, src_y, dst_x, dst_y, xxx, yyy);
-
- if (g->width > 0 && g->height > 0)
- {
- src_x = g->src_x + g->src_offset_x;
- src_y = g->src_y + g->src_offset_y;
- dst_x = ply->x % MAX_BUF_XSIZE * TILEX + g->dst_offset_x;
- dst_y = ply->y % MAX_BUF_YSIZE * TILEY + g->dst_offset_y;
-
- SetClipOrigin(g->bitmap, g->bitmap->stored_clip_gc,
- dst_x - src_x, dst_y - src_y);
- BlitBitmapMasked(g->bitmap, screenBitmap,
- src_x, src_y, g->width, g->height, dst_x, dst_y);
-
- printf("::: %d, %d, %d, %d\n",
- src_x, src_y, dst_x, dst_y);
- }
+ src_x = g->src_x + g->src_offset_x;
+ src_y = g->src_y + g->src_offset_y;
+ dst_x = new_x % MAX_BUF_XSIZE * TILEX + g->dst_offset_x;
+ dst_y = new_y % MAX_BUF_YSIZE * TILEY + g->dst_offset_y;
+
+ SetClipOrigin(g->bitmap, g->bitmap->stored_clip_gc,
+ dst_x - src_x, dst_y - src_y);
+ BlitBitmapMasked(g->bitmap, screenBitmap,
+ src_x, src_y, g->width, g->height, dst_x, dst_y);
}
#else
SetClipOrigin(objBitmap, objBitmap->stored_clip_gc,
BlitBitmapMasked(objBitmap, screenBitmap,
src_x, src_y, TILEX, TILEY, dst_x, dst_y);
#endif
-#endif
#else
if (objmaskBitmap)
{
- obj = screentiles[y / TILEY][x / TILEX];
+ obj = screentiles[y1 / TILEY][x1 / TILEX];
XCopyArea(display, objmaskBitmap, spriteBitmap, spriteGC,
(obj / 512) * TILEX, (obj % 512) * TILEY / 16, TILEX, TILEY,
- -(x % TILEX), -(y % TILEY));
+ -(x1 % TILEX), -(y1 % TILEY));
- obj = screentiles[dy / TILEY][dx / TILEX];
+ obj = screentiles[y2 / TILEY][x2 / TILEX];
XCopyArea(display, objmaskBitmap, spriteBitmap, spriteGC,
(obj / 512) * TILEX, (obj % 512) * TILEY / 16, TILEX, TILEY,
- (MAX_BUF_XSIZE * TILEX - x) % TILEX,
- (MAX_BUF_YSIZE * TILEY - y) % TILEY);
+ (MAX_BUF_XSIZE * TILEX - x1) % TILEX,
+ (MAX_BUF_YSIZE * TILEY - y1) % TILEY);
}
else if (sprmaskBitmap)
{
SetClipOrigin(sprBitmap, sprBitmap->stored_clip_gc, x, y);
BlitBitmapMasked(sprBitmap, screenBitmap,
(spr / 8) * TILEX, (spr % 8) * TILEY, TILEX, TILEY,
- x, y);
+ x1, y1);
SetClipOrigin(sprBitmap, sprBitmap->stored_clip_gc,
x - MAX_BUF_XSIZE * TILEX, y);
BlitBitmapMasked(sprBitmap, screenBitmap,
(spr / 8) * TILEX, (spr % 8) * TILEY, TILEX, TILEY,
- x - MAX_BUF_XSIZE * TILEX, y);
+ x1 - MAX_BUF_XSIZE * TILEX, y1);
SetClipOrigin(sprBitmap, sprBitmap->stored_clip_gc,
- x, y - MAX_BUF_YSIZE * TILEY);
+ x1, y1 - MAX_BUF_YSIZE * TILEY);
BlitBitmapMasked(sprBitmap, screenBitmap,
(spr / 8) * TILEX, (spr % 8) * TILEY, TILEX, TILEY,
- x, y - MAX_BUF_YSIZE * TILEY);
+ x1, y1 - MAX_BUF_YSIZE * TILEY);
SetClipMask(sprBitmap, sprBitmap->stored_clip_gc, None);
#endif
- screentiles[y / TILEY][x / TILEX] = -1; /* mark screen as dirty */
- screentiles[dy / TILEY][dx / TILEX] = -1;
+ /* mark screen tiles as dirty */
+ screentiles[y1 / TILEY][x1 / TILEX] = -1;
+ screentiles[y2 / TILEY][x2 / TILEX] = -1;
}
}
projects / rocksndiamonds.git / blobdiff