unsigned int screen_y;
/* tiles currently on screen */
-static unsigned short screentiles[MAX_BUF_YSIZE][MAX_BUF_XSIZE];
+static unsigned int screentiles[MAX_BUF_YSIZE][MAX_BUF_XSIZE];
+static unsigned int crumbled_state[MAX_BUF_YSIZE][MAX_BUF_XSIZE];
/* copy the entire screen to the window at the scroll position
* perhaps use mit-shm to speed this up
*/
-void blitscreen(void)
+void BlitScreenToBitmap_EM(Bitmap *target_bitmap)
{
unsigned int x = screen_x % (MAX_BUF_XSIZE * TILEX);
unsigned int y = screen_y % (MAX_BUF_YSIZE * TILEY);
if (x < 2 * TILEX && y < 2 * TILEY)
{
- BlitBitmap(screenBitmap, window, x, y,
+ BlitBitmap(screenBitmap, target_bitmap, x, y,
SCR_FIELDX * TILEX, SCR_FIELDY * TILEY, SX, SY);
}
else if (x < 2 * TILEX && y >= 2 * TILEY)
{
- BlitBitmap(screenBitmap, window, x, y,
+ BlitBitmap(screenBitmap, target_bitmap, x, y,
SCR_FIELDX * TILEX, MAX_BUF_YSIZE * TILEY - y,
SX, SY);
- BlitBitmap(screenBitmap, window, x, 0,
+ BlitBitmap(screenBitmap, target_bitmap, x, 0,
SCR_FIELDX * TILEX, y - 2 * TILEY,
SX, SY + MAX_BUF_YSIZE * TILEY - y);
}
else if (x >= 2 * TILEX && y < 2 * TILEY)
{
- BlitBitmap(screenBitmap, window, x, y,
+ BlitBitmap(screenBitmap, target_bitmap, x, y,
MAX_BUF_XSIZE * TILEX - x, SCR_FIELDY * TILEY,
SX, SY);
- BlitBitmap(screenBitmap, window, 0, y,
+ BlitBitmap(screenBitmap, target_bitmap, 0, y,
x - 2 * TILEX, SCR_FIELDY * TILEY,
SX + MAX_BUF_XSIZE * TILEX - x, SY);
}
else
{
- BlitBitmap(screenBitmap, window, x, y,
+ BlitBitmap(screenBitmap, target_bitmap, x, y,
MAX_BUF_XSIZE * TILEX - x, MAX_BUF_YSIZE * TILEY - y,
SX, SY);
- BlitBitmap(screenBitmap, window, 0, y,
+ BlitBitmap(screenBitmap, target_bitmap, 0, y,
x - 2 * TILEX, MAX_BUF_YSIZE * TILEY - y,
SX + MAX_BUF_XSIZE * TILEX - x, SY);
- BlitBitmap(screenBitmap, window, x, 0,
+ BlitBitmap(screenBitmap, target_bitmap, x, 0,
MAX_BUF_XSIZE * TILEX - x, y - 2 * TILEY,
SX, SY + MAX_BUF_YSIZE * TILEY - y);
- BlitBitmap(screenBitmap, window, 0, 0,
+ BlitBitmap(screenBitmap, target_bitmap, 0, 0,
x - 2 * TILEX, y - 2 * TILEY,
SX + MAX_BUF_XSIZE * TILEX - x, SY + MAX_BUF_YSIZE * TILEY - y);
}
}
+void blitscreen(void)
+{
+ BlitScreenToBitmap_EM(window);
+}
+
+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;
+ int width = g->width;
+ int height = g->height;
+
+ if (draw_masked)
+ {
+ if (width > 0 && 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, width, height, dst_x, dst_y);
+ }
+ }
+ else
+ {
+ if ((width != TILEX || height != TILEY) && !g->preserve_background)
+ ClearRectangle(screenBitmap, sx * TILEX, sy * TILEY, TILEX, TILEY);
+
+ if (width > 0 && height > 0)
+ BlitBitmap(g->bitmap, screenBitmap,
+ src_x, src_y, width, 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
*
static void animscreen(void)
{
- unsigned int x, y, dx, dy;
- unsigned short obj;
+ unsigned int x, y, i;
unsigned int left = screen_x / TILEX;
unsigned int top = screen_y / TILEY;
+ static int xy[4][2] =
+ {
+ { 0, -1 },
+ { -1, 0 },
+ { +1, 0 },
+ { 0, +1 }
+ };
for (y = top; y < top + MAX_BUF_YSIZE; y++)
{
- dy = y % MAX_BUF_YSIZE;
for (x = left; x < left + MAX_BUF_XSIZE; x++)
{
- dx = x % MAX_BUF_XSIZE;
- obj = map_obj[frame][Draw[y][x]];
+ 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 = g->unique_identifier;
+ unsigned int crm = 0;
+
+ /* re-calculate crumbled state of this tile */
+ if (g->has_crumbled_graphics)
+ {
+ for (i = 0; i < 4; i++)
+ {
+ int xx = x + xy[i][0];
+ int yy = y + xy[i][1];
+ int tile_next;
+
+ if (xx < 0 || xx >= EM_MAX_CAVE_WIDTH ||
+ yy < 0 || yy >= EM_MAX_CAVE_HEIGHT)
+ continue;
- if (screentiles[dy][dx] != obj)
+ tile_next = Draw[yy][xx];
+
+ if (!graphic_info_em_object[tile_next][frame].has_crumbled_graphics)
+ crm |= (1 << i);
+ }
+ }
+
+ /* only redraw screen tiles if they (or their crumbled state) changed */
+ if (screentiles[sy][sx] != obj || crumbled_state[sy][sx] != crm)
{
- screentiles[dy][dx] = obj;
- BlitBitmap(objBitmap, screenBitmap,
- (obj / 512) * TILEX, (obj % 512) * TILEY / 16,
- TILEX, TILEY, dx * TILEX, dy * TILEY);
+ DrawLevelField_EM(x, y, sx, sy, FALSE);
+ DrawLevelFieldCrumbled_EM(x, y, sx, sy, crm, FALSE);
+
+ screentiles[sy][sx] = obj;
+ crumbled_state[sy][sx] = crm;
}
}
}
static void blitplayer(struct PLAYER *ply)
{
- unsigned int x, y, dx, dy;
- unsigned short obj, spr;
- int src_x, src_y, dest_x, dest_y;
+ unsigned int x1, y1, x2, y2;
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;
+ /* 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)(dx - screen_x) < ((MAX_BUF_XSIZE - 1) * TILEX - 1) &&
- (unsigned int)(dy - screen_y) < ((MAX_BUF_YSIZE - 1) * 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;
+ /* 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;
+#if 0
+ int old_crm = crumbled_state[old_sy][old_sx];
+#endif
+ int new_crm = crumbled_state[new_sy][new_sx];
-#if 1
- /* draw the player to current location */
- BlitBitmap(sprBitmap, screenBitmap,
- (spr / 8) * TILEX, (spr % 8) * TILEY, TILEX, TILEY,
- x, y);
- /* 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),
- /* 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);
-
- /* draw the field the player is moving from (masked over the player) */
- obj = screentiles[y / TILEY][x / TILEX];
- src_x = (obj / 512) * TILEX;
- src_y = (obj % 512) * TILEY / 16;
- dest_x = (x / TILEX) * TILEX;
- dest_y = (y / TILEY) * TILEY;
-
- SetClipOrigin(objBitmap, objBitmap->stored_clip_gc,
- dest_x - src_x, dest_y - src_y);
- BlitBitmapMasked(objBitmap, screenBitmap,
- src_x, src_y, TILEX, TILEY, dest_x, dest_y);
-
- /* draw the field the player is moving to (masked over the player) */
- obj = screentiles[dy / TILEY][dx / TILEX];
- src_x = (obj / 512) * TILEX;
- src_y = (obj % 512) * TILEY / 16;
- dest_x = (dx / TILEX) * TILEX;
- dest_y = (dy / TILEY) * TILEY;
-
- SetClipOrigin(objBitmap, objBitmap->stored_clip_gc,
- dest_x - src_x, dest_y - src_y);
- BlitBitmapMasked(objBitmap, screenBitmap,
- src_x, src_y, TILEX, TILEY, dest_x, dest_y);
+ /* only diggable elements can be crumbled in the classic EM engine */
+ boolean player_is_digging = (new_crm != 0);
-#else
+ x1 %= MAX_BUF_XSIZE * TILEX;
+ y1 %= MAX_BUF_YSIZE * TILEY;
+ x2 %= MAX_BUF_XSIZE * TILEX;
+ y2 %= MAX_BUF_YSIZE * TILEY;
- if (objmaskBitmap)
- {
- obj = screentiles[y / TILEY][x / TILEX];
- XCopyArea(display, objmaskBitmap, spriteBitmap, spriteGC,
- (obj / 512) * TILEX, (obj % 512) * TILEY / 16, TILEX, TILEY,
- -(x % TILEX), -(y % TILEY));
-
- obj = screentiles[dy / TILEY][dx / 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);
- }
- else if (sprmaskBitmap)
+ if (player_is_digging)
{
- XCopyArea(display, sprmaskBitmap, spriteBitmap, spriteGC,
- (spr / 8) * TILEX, (spr % 8) * TILEY, TILEX, TILEY, 0, 0);
- }
- else
- {
- XFillRectangle(display, spriteBitmap, spriteGC, 0, 0, TILEX, TILEY);
- }
+#if 0
+ /* 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);
+#endif
- SetClipMask(sprBitmap, sprBitmap->stored_clip_gc, spriteBitmap);
+ /* 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);
- SetClipOrigin(sprBitmap, sprBitmap->stored_clip_gc, x, y);
- BlitBitmapMasked(sprBitmap, screenBitmap,
- (spr / 8) * TILEX, (spr % 8) * TILEY, TILEX, TILEY,
- x, y);
+ /* draw the player (masked) over the element he is just digging away */
+ DrawLevelPlayer_EM(x1, y1, ply->num, ply->anim, TRUE);
- 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);
+#if 1
+ /* draw the field the player is moving from (masked over the player) */
+ DrawLevelField_EM(old_x, old_y, old_sx, old_sy, TRUE);
+#endif
+ }
+ else
+ {
+ /* draw the player under the element which is on the same field */
+ DrawLevelPlayer_EM(x1, y1, ply->num, ply->anim, FALSE);
- SetClipOrigin(sprBitmap, sprBitmap->stored_clip_gc,
- x, y - MAX_BUF_YSIZE * TILEY);
- BlitBitmapMasked(sprBitmap, screenBitmap,
- (spr / 8) * TILEX, (spr % 8) * TILEY, TILEX, TILEY,
- x, y - MAX_BUF_YSIZE * TILEY);
+ /* draw the field the player is moving from (masked over the player) */
+ DrawLevelField_EM(old_x, old_y, old_sx, old_sy, TRUE);
- 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);
+ }
- screentiles[y / TILEY][x / TILEX] = -1; /* mark screen as dirty */
- screentiles[dy / TILEY][dx / TILEX] = -1;
+ /* mark screen tiles as dirty */
+ screentiles[old_sy][old_sx] = -1;
+ screentiles[new_sy][new_sx] = -1;
}
}
screen_y = 0;
for (y = 0; y < MAX_BUF_YSIZE; y++)
+ {
for (x = 0; x < MAX_BUF_XSIZE; x++)
+ {
screentiles[y][x] = -1;
+ crumbled_state[y][x] = 0;
+ }
+ }
- DrawGameDoorValues_EM(lev.required, ply1.dynamite, lev.score,
- DISPLAY_TIME(lev.time + 4));
+#if 1
+ DrawAllGameValues(lev.required, ply1.dynamite, lev.score,
+ lev.time, ply1.keys | ply2.keys);
+#else
+ DrawAllGameValues(lev.required, ply1.dynamite, lev.score,
+ DISPLAY_TIME(lev.time + 4), ply1.keys | ply2.keys);
+#endif
}
-void game_animscreen(void)
+void RedrawPlayfield_EM()
{
unsigned int x,y;
FlushDisplay();
}
+
+void game_animscreen(void)
+{
+ RedrawPlayfield_EM();
+}
+
+void DrawGameDoorValues_EM()
+{
+#if 1
+ DrawAllGameValues(lev.required, ply1.dynamite, lev.score,
+ lev.time, ply1.keys | ply2.keys);
+#else
+ DrawAllGameValues(lev.required, ply1.dynamite, lev.score,
+ DISPLAY_TIME(lev.time), ply1.keys | ply2.keys);
+#endif
+}
projects / rocksndiamonds.git / blobdiff