}
}
+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];
+ 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;
+ int dst_y = sy * TILEY + g->dst_offset_y;
+
+ if (draw_masked)
+ {
+ if (g->width > 0 && g->height > 0)
+ {
+ 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
+ {
+ if (g->width != TILEX || g->height != TILEY)
+ ClearRectangle(screenBitmap, sx * TILEX, sy * TILEY, TILEX, TILEY);
+
+ if (g->width > 0 && g->height > 0)
+ BlitBitmap(g->bitmap, screenBitmap,
+ src_x, src_y, g->width, g->height, dst_x, dst_y);
+ }
+}
+
+static void DrawLevelFieldCrumbled_EM(int x, int y, int sx, int sy,
+ int crm, boolean draw_masked)
+{
+ int tile = Draw[y][x];
+ struct GraphicInfo_EM *g = &graphic_info_em_object[tile][frame];
+ unsigned int i;
+
+ if (crm == 0) /* no crumbled edges for this tile */
+ return;
+
+ for (i = 0; i < 4; i++)
+ {
+ if (crm & (1 << i))
+ {
+ int width, height, cx, cy;
+
+ if (i == 1 || i == 2)
+ {
+ width = g->crumbled_border_size;
+ height = TILEY;
+ cx = (i == 2 ? TILEX - g->crumbled_border_size : 0);
+ cy = 0;
+ }
+ else
+ {
+ width = TILEX;
+ height = g->crumbled_border_size;
+ cx = 0;
+ cy = (i == 3 ? TILEY - g->crumbled_border_size : 0);
+ }
+
+ if (width > 0 && height > 0)
+ {
+ int src_x = g->crumbled_src_x + cx;
+ int src_y = g->crumbled_src_y + cy;
+ int dst_x = sx * TILEX + cx;
+ int dst_y = sy * TILEY + cy;
+
+ if (draw_masked)
+ {
+ SetClipOrigin(g->crumbled_bitmap, g->crumbled_bitmap->stored_clip_gc,
+ dst_x - src_x, dst_y - src_y);
+ BlitBitmapMasked(g->crumbled_bitmap, screenBitmap,
+ src_x, src_y, width, height, dst_x, dst_y);
+ }
+ else
+ BlitBitmap(g->crumbled_bitmap, screenBitmap,
+ src_x, src_y, width, height, dst_x, dst_y);
+ }
+ }
+ }
+}
+
+static void DrawLevelPlayer_EM(int x1, int y1, int player_nr, int anim,
+ boolean draw_masked)
+{
+ struct GraphicInfo_EM *g = &graphic_info_em_player[player_nr][anim][frame];
+
+ int src_x = g->src_x, src_y = g->src_y;
+ int dst_x, dst_y;
+
+ if (draw_masked)
+ {
+ /* draw the player to current location */
+ dst_x = x1;
+ dst_y = y1;
+ SetClipOrigin(g->bitmap, g->bitmap->stored_clip_gc,
+ dst_x - src_x, dst_y - src_y);
+ BlitBitmapMasked(g->bitmap, screenBitmap,
+ src_x, src_y, TILEX, TILEY, dst_x, dst_y);
+
+ /* draw the player to opposite wrap-around column */
+ dst_x = x1 - MAX_BUF_XSIZE * TILEX;
+ dst_y = y1;
+ SetClipOrigin(g->bitmap, g->bitmap->stored_clip_gc,
+ dst_x - src_x, dst_y - src_y);
+ BlitBitmapMasked(g->bitmap, screenBitmap,
+ g->src_x, g->src_y, TILEX, TILEY, dst_x, dst_y);
+
+ /* draw the player to opposite wrap-around row */
+ dst_x = x1;
+ dst_y = y1 - MAX_BUF_YSIZE * TILEY;
+ SetClipOrigin(g->bitmap, g->bitmap->stored_clip_gc,
+ dst_x - src_x, dst_y - src_y);
+ BlitBitmapMasked(g->bitmap, screenBitmap,
+ g->src_x, g->src_y, TILEX, TILEY, dst_x, dst_y);
+ }
+ else
+ {
+ /* draw the player to current location */
+ dst_x = x1;
+ dst_y = y1;
+ BlitBitmap(g->bitmap, screenBitmap,
+ g->src_x, g->src_y, TILEX, TILEY, dst_x, dst_y);
+
+ /* draw the player to opposite wrap-around column */
+ dst_x = x1 - MAX_BUF_XSIZE * TILEX;
+ dst_y = y1;
+ BlitBitmap(g->bitmap, screenBitmap,
+ g->src_x, g->src_y, TILEX, TILEY, dst_x, dst_y);
+
+ /* draw the player to opposite wrap-around row */
+ dst_x = x1;
+ dst_y = y1 - MAX_BUF_YSIZE * TILEY;
+ BlitBitmap(g->bitmap, screenBitmap,
+ g->src_x, g->src_y, TILEX, TILEY, dst_x, dst_y);
+ }
+}
/* draw differences between game tiles and screen tiles
*
{
for (x = left; x < left + MAX_BUF_XSIZE; x++)
{
- int dx = x % MAX_BUF_XSIZE;
- int dy = y % MAX_BUF_YSIZE;
+ int sx = x % MAX_BUF_XSIZE;
+ int sy = y % MAX_BUF_YSIZE;
int tile = Draw[y][x];
struct GraphicInfo_EM *g = &graphic_info_em_object[tile][frame];
- unsigned int obj;
+ unsigned int obj = g->unique_identifier;
unsigned int crm = 0;
-#if 1
-
-#if 1
/* re-calculate crumbled state of this tile */
if (g->has_crumbled_graphics)
{
crm |= (1 << i);
}
}
-#else
- /* re-calculate crumbled state of this tile */
- if (tile == Xgrass ||
- tile == Xdirt ||
- tile == Xfake_grass ||
- tile == Xfake_grassB)
- {
- for (i = 0; i < 4; i++)
- {
- int xx = x + xy[i][0];
- int yy = y + xy[i][1];
- int tile2;
-
- if (xx < 0 || xx >= EM_MAX_CAVE_WIDTH ||
- yy < 0 || yy >= EM_MAX_CAVE_HEIGHT)
- continue;
-
- tile2 = Draw[yy][xx];
-
- if (tile2 == Xgrass ||
- tile2 == Xdirt ||
- tile2 == Xfake_grass ||
- tile2 == Xfake_grassB ||
- tile2 == Ygrass_nB ||
- tile2 == Ygrass_eB ||
- tile2 == Ygrass_sB ||
- tile2 == Ygrass_wB ||
- tile2 == Ydirt_nB ||
- tile2 == Ydirt_eB ||
- tile2 == Ydirt_sB ||
- tile2 == Ydirt_wB)
- continue;
-
- crm |= (1 << i);
- }
- }
-#endif
-
- /* create unique graphic identifier to decide if tile must be redrawn */
- obj = g->unique_identifier;
- if (screentiles[dy][dx] != obj || crumbled_state[dy][dx] != crm)
+ if (screentiles[sy][sx] != obj || crumbled_state[sy][sx] != crm)
{
- int dst_x = dx * TILEX;
- int dst_y = dy * TILEY;
-
- if (g->width != TILEX || g->height != TILEY)
- ClearRectangle(screenBitmap, dst_x, dst_y, TILEX, TILEY);
-
- if (g->width > 0 && g->height > 0)
- BlitBitmap(g->bitmap, screenBitmap,
- g->src_x + g->src_offset_x, g->src_y + g->src_offset_y,
- g->width, g->height,
- dst_x + g->dst_offset_x, dst_y + g->dst_offset_y);
-
-#if 1
- /* add crumbling graphic, if needed */
- if (crm)
- {
- for (i = 0; i < 4; i++)
- {
- if (crm & (1 << i))
- {
- int width, height, cx, cy;
-
- if (i == 1 || i == 2)
- {
- width = g->crumbled_border_size;
- height = TILEY;
- cx = (i == 2 ? TILEX - g->crumbled_border_size : 0);
- cy = 0;
- }
- else
- {
- width = TILEX;
- height = g->crumbled_border_size;
- cx = 0;
- cy = (i == 3 ? TILEY - g->crumbled_border_size : 0);
- }
-
- if (width > 0 && height > 0)
- BlitBitmap(g->crumbled_bitmap, screenBitmap,
- g->crumbled_src_x + cx, g->crumbled_src_y + cy,
- width, height, dst_x + cx, dst_y + cy);
- }
- }
- }
-#else
- /* add crumbling graphic, if needed */
- if (crm)
- {
- int crumbled_border_size;
-
- tile = (tile == Xgrass ? Ygrass_crumbled :
- tile == Xdirt ? Ydirt_crumbled :
- tile == Xfake_grass ? Yfake_grass_crumbled :
- tile == Xfake_grassB ? Yfake_grassB_crumbled : 0);
- g = &graphic_info_em_object[tile][frame];
- crumbled_border_size = g->border_size;
-
- for (i = 0; i < 4; i++)
- {
- if (crm & (1 << i))
- {
- int width, height, cx, cy;
-
- if (i == 1 || i == 2)
- {
- width = crumbled_border_size;
- height = TILEY;
- cx = (i == 2 ? TILEX - crumbled_border_size : 0);
- cy = 0;
- }
- else
- {
- width = TILEX;
- height = crumbled_border_size;
- cx = 0;
- cy = (i == 3 ? TILEY - crumbled_border_size : 0);
- }
-
- if (width > 0 && height > 0)
- BlitBitmap(g->bitmap, screenBitmap,
- g->src_x + cx, g->src_y + cy, width, height,
- dst_x + cx, dst_y + cy);
- }
- }
- }
-#endif
+ DrawLevelField_EM(x, y, sx, sy, FALSE);
+ DrawLevelFieldCrumbled_EM(x, y, sx, sy, crm, FALSE);
- screentiles[dy][dx] = obj;
- crumbled_state[dy][dx] = crm;
+ screentiles[sy][sx] = obj;
+ crumbled_state[sy][sx] = crm;
}
-#else
- obj = map_obj[frame][tile];
-
- if (screentiles[dy][dx] != obj)
- {
- BlitBitmap(objBitmap, screenBitmap,
- (obj / 512) * TILEX, (obj % 512) * TILEY / 16,
- TILEX, TILEY, dx * TILEX, dy * TILEY);
-
- screentiles[dy][dx] = obj;
- }
-#endif
}
}
}
static void blitplayer(struct PLAYER *ply)
{
- int dx, dy;
- int old_x, old_y, new_x, new_y;
- int src_x, src_y, dst_x, dst_y;
unsigned int x1, y1, x2, y2;
-#if 1
- unsigned short spr;
-#else
- unsigned short obj, spr;
-#endif
if (!ply->alive)
return;
- /* 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;
if ((unsigned int)(x2 - screen_x) < ((MAX_BUF_XSIZE - 1) * TILEX - 1) &&
(unsigned int)(y2 - screen_y) < ((MAX_BUF_YSIZE - 1) * TILEY - 1))
{
- struct GraphicInfo_EM *g;
- int tile;
+ /* some casts to "int" are needed because of negative calculation values */
+ int dx = (int)ply->x - (int)ply->oldx;
+ int dy = (int)ply->y - (int)ply->oldy;
+ int old_x = (int)ply->oldx + (7 - (int)frame) * dx / 8;
+ int old_y = (int)ply->oldy + (7 - (int)frame) * dy / 8;
+ int new_x = old_x + SIGN(dx);
+ int new_y = old_y + SIGN(dy);
+ int old_sx = old_x % MAX_BUF_XSIZE;
+ int old_sy = old_y % MAX_BUF_XSIZE;
+ int new_sx = new_x % MAX_BUF_XSIZE;
+ int new_sy = new_y % MAX_BUF_XSIZE;
+ int old_crm = crumbled_state[old_sy][old_sx];
+ int new_crm = crumbled_state[new_sy][new_sx];
+
+ /* only diggable elements can be crumbled in the classic EM engine */
+ boolean player_is_digging = (crumbled_state[new_sy][new_sx] != 0);
- spr = map_spr[ply->num][frame][ply->anim];
x1 %= MAX_BUF_XSIZE * TILEX;
y1 %= MAX_BUF_YSIZE * TILEY;
x2 %= MAX_BUF_XSIZE * TILEX;
y2 %= MAX_BUF_YSIZE * TILEY;
-#if 1
-
-#if 1
- g = &graphic_info_em_player[ply->num][ply->anim][frame];
-
- /* draw the player to current location */
- BlitBitmap(g->bitmap, screenBitmap,
- g->src_x, g->src_y, TILEX, TILEY,
- x1, y1);
-
- /* draw the player to opposite wrap-around column */
- BlitBitmap(g->bitmap, screenBitmap,
- g->src_x, g->src_y, TILEX, TILEY,
- x1 - MAX_BUF_XSIZE * TILEX, y1);
-
- /* draw the player to opposite wrap-around row */
- BlitBitmap(g->bitmap, screenBitmap,
- g->src_x, g->src_y, TILEX, TILEY,
- x1, y1 - MAX_BUF_YSIZE * TILEY);
-#else
- /* draw the player to current location */
- BlitBitmap(sprBitmap, screenBitmap,
- (spr / 8) * TILEX, (spr % 8) * TILEY, TILEX, TILEY,
- x1, y1);
-
- /* draw the player to opposite wrap-around column */
- BlitBitmap(sprBitmap, screenBitmap,
- (spr / 8) * TILEX, (spr % 8) * TILEY, TILEX, TILEY,
- 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,
- x1, y1 - MAX_BUF_YSIZE * TILEY);
-#endif
-
- /* draw the field the player is moving from (masked over the player) */
-#if 0
- obj = screentiles[y1 / TILEY][x1 / TILEX];
- src_x = (obj / 512) * TILEX;
- src_y = (obj % 512) * TILEY / 16;
- dst_x = (x1 / TILEX) * TILEX;
- dst_y = (y1 / TILEY) * TILEY;
-#endif
-
-#if 1
- tile = Draw[old_y][old_x];
- g = &graphic_info_em_object[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 = 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
-
- /* draw the field the player is moving to (masked over the player) */
-#if 0
- obj = screentiles[y2 / TILEY][x2 / TILEX];
- src_x = (obj / 512) * TILEX;
- src_y = (obj % 512) * TILEY / 16;
- dst_x = (x2 / TILEX) * TILEX;
- dst_y = (y2 / TILEY) * TILEY;
-#endif
-
-#if 1
- tile = Draw[new_y][new_x];
- g = &graphic_info_em_object[tile][frame];
-
- if (g->width > 0 && g->height > 0)
+ if (player_is_digging)
{
- 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,
- dst_x - src_x, dst_y - src_y);
- BlitBitmapMasked(objBitmap, screenBitmap,
- src_x, src_y, TILEX, TILEY, dst_x, dst_y);
-#endif
+ /* draw the field the player is moving from (under the player) */
+ DrawLevelField_EM(old_x, old_y, old_sx, old_sy, FALSE);
+ DrawLevelFieldCrumbled_EM(old_x, old_y, old_sx, old_sy, old_crm, FALSE);
-#else
+ /* draw the field the player is moving to (under the player) */
+ DrawLevelField_EM(new_x, new_y, new_sx, new_sy, FALSE);
+ DrawLevelFieldCrumbled_EM(new_x, new_y, new_sx, new_sy, new_crm, FALSE);
- if (objmaskBitmap)
- {
- obj = screentiles[y1 / TILEY][x1 / TILEX];
- XCopyArea(display, objmaskBitmap, spriteBitmap, spriteGC,
- (obj / 512) * TILEX, (obj % 512) * TILEY / 16, TILEX, TILEY,
- -(x1 % TILEX), -(y1 % TILEY));
-
- obj = screentiles[y2 / TILEY][x2 / TILEX];
- XCopyArea(display, objmaskBitmap, spriteBitmap, spriteGC,
- (obj / 512) * TILEX, (obj % 512) * TILEY / 16, TILEX, TILEY,
- (MAX_BUF_XSIZE * TILEX - x1) % TILEX,
- (MAX_BUF_YSIZE * TILEY - y1) % TILEY);
- }
- else if (sprmaskBitmap)
- {
- XCopyArea(display, sprmaskBitmap, spriteBitmap, spriteGC,
- (spr / 8) * TILEX, (spr % 8) * TILEY, TILEX, TILEY, 0, 0);
+ /* draw the player (masked) over the element he is just digging away */
+ DrawLevelPlayer_EM(x1, y1, ply->num, ply->anim, TRUE);
}
else
{
- XFillRectangle(display, spriteBitmap, spriteGC, 0, 0, TILEX, TILEY);
- }
+ /* draw the player under the element which is on the same field */
+ DrawLevelPlayer_EM(x1, y1, ply->num, ply->anim, FALSE);
- SetClipMask(sprBitmap, sprBitmap->stored_clip_gc, spriteBitmap);
+ /* draw the field the player is moving from (masked over the player) */
+ DrawLevelField_EM(old_x, old_y, old_sx, old_sy, TRUE);
- SetClipOrigin(sprBitmap, sprBitmap->stored_clip_gc, x, y);
- BlitBitmapMasked(sprBitmap, screenBitmap,
- (spr / 8) * TILEX, (spr % 8) * TILEY, TILEX, TILEY,
- 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,
- x1 - MAX_BUF_XSIZE * TILEX, y1);
-
- SetClipOrigin(sprBitmap, sprBitmap->stored_clip_gc,
- x1, y1 - MAX_BUF_YSIZE * TILEY);
- BlitBitmapMasked(sprBitmap, screenBitmap,
- (spr / 8) * TILEX, (spr % 8) * TILEY, TILEX, TILEY,
- x1, y1 - MAX_BUF_YSIZE * TILEY);
-
- SetClipMask(sprBitmap, sprBitmap->stored_clip_gc, None);
-#endif
+ /* draw the field the player is moving to (masked over the player) */
+ DrawLevelField_EM(new_x, new_y, new_sx, new_sy, TRUE);
+ }
/* mark screen tiles as dirty */
- screentiles[y1 / TILEY][x1 / TILEX] = -1;
- screentiles[y2 / TILEY][x2 / TILEX] = -1;
+ screentiles[old_sy][old_sx] = -1;
+ screentiles[new_sy][new_sx] = -1;
}
}