X-Git-Url: https://git.artsoft.org/?a=blobdiff_plain;f=src%2Fgame_em%2Fgraphics.c;h=5682a24ea9d5e2eba4c18766ec470a6bf05bc7c1;hb=e0585a1afaf681692e593d3d25535f21b8f301d2;hp=9a74308e62edabd699cbb2a12373a0ba06899d8c;hpb=f2b486caeabc0548dfa744c1569496c087b7420f;p=rocksndiamonds.git diff --git a/src/game_em/graphics.c b/src/game_em/graphics.c index 9a74308e..5682a24e 100644 --- a/src/game_em/graphics.c +++ b/src/game_em/graphics.c @@ -8,12 +8,38 @@ #include "level.h" +#define MIN_SCREEN_X (TILEX) +#define MIN_SCREEN_Y (TILEY) +#define MAX_SCREEN_X ((lev.width - (SCR_FIELDX - 1)) * TILEX) +#define MAX_SCREEN_Y ((lev.height - (SCR_FIELDY - 1)) * TILEY) + +#define VALID_SCREEN_X(x) ((x) < MIN_SCREEN_X ? MIN_SCREEN_X : \ + (x) > MAX_SCREEN_X ? MAX_SCREEN_X : (x)) +#define VALID_SCREEN_Y(y) ((y) < MIN_SCREEN_Y ? MIN_SCREEN_Y : \ + (y) > MAX_SCREEN_Y ? MAX_SCREEN_Y : (y)) + +#define PLAYER_SCREEN_X(p) ((( frame) * ply[p].oldx + \ + (8 - frame) * ply[p].x) * TILEX / 8 \ + - ((SCR_FIELDX - 1) * TILEX) / 2) +#define PLAYER_SCREEN_Y(p) ((( frame) * ply[p].oldy + \ + (8 - frame) * ply[p].y) * TILEY / 8 \ + - ((SCR_FIELDY - 1) * TILEY) / 2) + + unsigned int frame; /* current screen frame */ +#if 0 unsigned int screen_x; /* current scroll position */ unsigned int screen_y; +#else +int screen_x; /* current scroll position */ +int screen_y; +#endif /* 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]; + +static boolean redraw[MAX_BUF_XSIZE][MAX_BUF_YSIZE]; /* copy the entire screen to the window at the scroll position @@ -21,51 +47,244 @@ static unsigned short screentiles[MAX_BUF_YSIZE][MAX_BUF_XSIZE]; * 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) +{ +#if 1 + + static boolean scrolling_last = FALSE; + unsigned int left = screen_x / TILEX; + unsigned int top = screen_y / TILEY; + 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 */ + BlitScreenToBitmap_EM(backbuffer); + + /* blit the completely updated backbuffer to the window (in one blit) */ + BlitBitmap(backbuffer, window, SX, SY, SXSIZE, SYSIZE, SX, SY); + } + else + { + for (x = 0; x < SCR_FIELDX; x++) + { + for (y = 0; y < SCR_FIELDY; y++) + { + int xx = (left + x) % MAX_BUF_XSIZE; + int yy = (top + y) % MAX_BUF_YSIZE; + + if (redraw[xx][yy]) + BlitBitmap(screenBitmap, window, + xx * TILEX, yy * TILEY, TILEX, TILEY, + SX + x * TILEX, SY + y * TILEY); + } + } + } + + for (x = 0; x < MAX_BUF_XSIZE; x++) + for (y = 0; y < MAX_BUF_YSIZE; y++) + redraw[x][y] = FALSE; + redraw_tiles = 0; + + scrolling_last = scrolling; + +#else + + /* blit all (up to four) parts of the scroll buffer to the window */ + BlitScreenToBitmap_EM(window); + +#endif +} + +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 * @@ -76,44 +295,59 @@ void blitscreen(void) 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; + 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++) { + 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; - dx = x % MAX_BUF_XSIZE; - obj = map_obj[frame][tile]; + tile_next = Draw[yy][xx]; - if (screentiles[dy][dx] != obj) + 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) { -#if 1 - struct GraphicInfo_EM *g = &graphic_info_em[tile][frame]; - 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); -#else - BlitBitmap(objBitmap, screenBitmap, - (obj / 512) * TILEX, (obj % 512) * TILEY / 16, - TILEX, TILEY, dx * TILEX, dy * TILEY); -#endif + DrawLevelField_EM(x, y, sx, sy, FALSE); + DrawLevelFieldCrumbled_EM(x, y, sx, sy, crm, FALSE); + + screentiles[sy][sx] = obj; + crumbled_state[sy][sx] = crm; - screentiles[dy][dx] = obj; + redraw[sx][sy] = TRUE; + redraw_tiles++; } } } @@ -127,159 +361,175 @@ static void animscreen(void) 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; } } void game_initscreen(void) { unsigned int x,y; + int dynamite_state = ply[0].dynamite; /* !!! ONLY PLAYER 1 !!! */ + int all_keys_state = ply[0].keys | ply[1].keys | ply[2].keys | ply[3].keys; + int player_nr = 0; /* !!! FIX THIS (CENTERED TO PLAYER 1) !!! */ frame = 6; +#if 1 + screen_x = VALID_SCREEN_X(PLAYER_SCREEN_X(player_nr)); + screen_y = VALID_SCREEN_Y(PLAYER_SCREEN_Y(player_nr)); +#else screen_x = 0; screen_y = 0; +#endif 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, dynamite_state, lev.score, + lev.time, all_keys_state); +#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; + int player_nr = 0; /* !!! FIX THIS (CENTERED TO PLAYER 1) !!! */ + int sx = PLAYER_SCREEN_X(player_nr); + int sy = PLAYER_SCREEN_Y(player_nr); + int i; + +#if 1 - x = (frame * ply1.oldx + (8 - frame) * ply1.x) * TILEX / 8 - + ((SCR_FIELDX - 1) * TILEX) / 2; - y = (frame * ply1.oldy + (8 - frame) * ply1.y) * TILEY / 8 - + ((SCR_FIELDY - 1) * TILEY) / 2; + int offset = (setup.scroll_delay ? 3 : 0) * TILEX; - if (x > lev.width * TILEX) - x = lev.width * TILEX; - if (y > lev.height * TILEY) - y = lev.height * TILEY; + /* calculate new screen scrolling position, with regard to scroll delay */ + screen_x = VALID_SCREEN_X(sx < screen_x - offset ? sx + offset : + sx > screen_x + offset ? sx - offset : screen_x); + screen_y = VALID_SCREEN_Y(sy < screen_y - offset ? sy + offset : + sy > screen_y + offset ? sy - offset : screen_y); - if (x < SCR_FIELDX * TILEX) - x = SCR_FIELDX * TILEY; - if (y < SCR_FIELDY * TILEY) - y = SCR_FIELDY * TILEY; +#else + + if (sx > lev.width * TILEX) + sx = lev.width * TILEX; + if (sy > lev.height * TILEY) + sy = lev.height * TILEY; + + if (sx < SCR_FIELDX * TILEX) + sx = SCR_FIELDX * TILEY; + if (sy < SCR_FIELDY * TILEY) + sy = SCR_FIELDY * TILEY; - screen_x = x - (SCR_FIELDX - 1) * TILEX; - screen_y = y - (SCR_FIELDY - 1) * TILEY; + screen_x = sx - (SCR_FIELDX - 1) * TILEX; + screen_y = sy - (SCR_FIELDY - 1) * TILEY; + +#endif animscreen(); - blitplayer(&ply1); - blitplayer(&ply2); + + for (i = 0; i < MAX_PLAYERS; i++) + blitplayer(&ply[i]); + blitscreen(); FlushDisplay(); } + +void game_animscreen(void) +{ + RedrawPlayfield_EM(); +} + +void DrawGameDoorValues_EM() +{ + int dynamite_state = ply[0].dynamite; /* !!! ONLY PLAYER 1 !!! */ + int all_keys_state = ply[0].keys | ply[1].keys | ply[2].keys | ply[3].keys; + +#if 1 + DrawAllGameValues(lev.required, dynamite_state, lev.score, + lev.time, all_keys_state); +#else + DrawAllGameValues(lev.required, ply1.dynamite, lev.score, + DISPLAY_TIME(lev.time), ply1.keys | ply2.keys); +#endif +}