// pointer to reference tile bitmap (without level-specific colors)
static Bitmap *gd_tile_bitmap_reference = NULL;
-// optional title screen bitmap
-static Bitmap *gd_title_screen_bitmap = NULL;
+// optional title screen bitmaps (foreground and background)
+static Bitmap *gd_title_screen_bitmaps[2] = { NULL, NULL };
// screen area
Bitmap *gd_screen_bitmap = NULL;
// quit, global variable which is set to true if the application should quit
boolean gd_quit = FALSE;
-const byte *gd_keystate;
-
static int cell_size = 0;
// graphic info for game objects/frames and players/actions/frames
play_area_h = h;
}
-void gd_init_keystate(void)
+void gd_init_play_area(void)
{
set_play_area(SXSIZE, SYSIZE);
-
- gd_keystate = SDL_GetKeyboardState(NULL);
}
/*
return bitmap;
}
-#if DO_GFX_SANITY_CHECK
-// workaround to prevent variable name scope problem
-static boolean use_native_bd_graphics_engine(void)
-{
- return game.use_native_bd_graphics_engine;
-}
-#endif
-
// returns true if the element is a player
-static inline boolean is_player(const int element)
+static inline boolean el_player(const int element)
{
return (gd_elements[element & O_MASK].properties & P_PLAYER) != 0;
}
// returns true if the element is diggable
-static inline boolean is_diggable(const int element)
+static inline boolean el_diggable(const int element)
{
return (gd_elements[element & O_MASK].properties & P_DIGGABLE) != 0;
}
// returns true if the element is collectible
-static inline boolean is_collectible(const int element)
+static inline boolean el_collectible(const int element)
{
return (gd_elements[element & O_MASK].properties & P_COLLECTIBLE) != 0;
}
// returns true if the element is pushable
-static inline boolean is_pushable(const int element)
+static inline boolean el_pushable(const int element)
{
return (gd_elements[element & O_MASK].properties & P_PUSHABLE) != 0;
}
// returns true if the element can move
-static inline boolean can_move(const int element)
+static inline boolean el_can_move(const int element)
{
return (gd_elements[element & O_MASK].properties & P_CAN_MOVE) != 0;
}
// returns true if the element can fall
-static inline boolean can_fall(const int element)
+static inline boolean el_falling(const int element)
{
- return (gd_elements[element & O_MASK].properties & P_CAN_FALL) != 0;
+ return (gd_elements[element & O_MASK].properties & P_FALLING) != 0;
}
// returns true if the element is exploding
-static inline boolean is_explosion(const int element)
+static inline boolean el_explosion(const int element)
{
return (gd_elements[element & O_MASK].properties & P_EXPLOSION) != 0;
}
int frame = game->animcycle;
struct GraphicInfo_BD *g = &graphic_info_bd_object[tile][frame];
Bitmap *tile_bitmap = gd_get_tile_bitmap(g->bitmap);
- boolean is_movable = (can_move(tile) || can_fall(tile) || is_pushable(tile) || is_player(tile));
- boolean is_movable_or_diggable = (is_movable || is_diggable(game->last_element_buffer[y][x]));
+ boolean is_movable = (el_can_move(tile) || el_falling(tile) || el_pushable(tile) ||
+ el_player(tile));
+ boolean is_movable_or_diggable = (is_movable || el_diggable(game->last_element_buffer[y][x]));
boolean is_moving = (is_movable_or_diggable && dir != GD_MV_STILL);
- boolean use_smooth_movements =
- ((setup.bd_smooth_movements == TRUE) ||
- (setup.bd_smooth_movements == AUTO && !use_native_bd_graphics_engine()));
+ boolean use_smooth_movements = use_bd_smooth_movements();
// do not use smooth movement animation for exploding game elements (like player)
- if (is_explosion(tile) && dir != GD_MV_STILL)
+ if (el_explosion(tile) && dir != GD_MV_STILL)
use_smooth_movements = FALSE;
// do not use smooth movement animation for player entering exit (engine stopped)
int tile_last = game->last_element_buffer[y][x];
// only redraw previous game element if it is diggable (like dirt etc.)
- if (!is_diggable(tile_last))
+ if (!el_diggable(tile_last))
tile_last = O_SPACE;
struct GraphicInfo_BD *g_old = &graphic_info_bd_object[tile_last][frame];
int tile_from = game->element_buffer[old_y][old_x] & ~SKIPPED; // should never be skipped
struct GraphicInfo_BD *g_from = &graphic_info_bd_object[tile_from][frame];
Bitmap *tile_bitmap_from = gd_get_tile_bitmap(g_from->bitmap);
- boolean old_is_player = is_player(tile_from);
+ boolean old_is_player = el_player(tile_from);
boolean old_is_moving = (game->dir_buffer[old_y][old_x] != GD_MV_STILL);
boolean old_is_visible = (old_x >= cave->x1 &&
old_x <= cave->x2 &&
return surface;
}
-static SDL_Surface *get_title_screen_surface(void)
+static SDL_Surface *get_title_screen_background_surface(SDL_Surface *tile)
{
- if (gd_caveset_data == NULL || gd_caveset_data->title_screen == NULL)
+ if (tile == NULL)
return NULL;
- SDL_Surface *surface = get_surface_from_base64(gd_caveset_data->title_screen);
+ SDL_Surface *foreground_surface = gd_title_screen_bitmaps[0]->surface_masked;
- if (surface == NULL)
+ // if foreground image has no transparency, no background image needed
+ if (foreground_surface->format->Amask == 0)
return NULL;
- // create target surface
- SDL_Surface *target = SDL_CreateRGBSurface(0, surface->w, surface->h, 32, 0, 0, 0, 0);
+ // use foreground image size for background image size
+ int w = foreground_surface->w;
+ int h = foreground_surface->h + tile->h; // background is one scrolling tile higher
- // check for transparency and background tile
- if (surface->format->Amask != 0 && gd_caveset_data->title_screen_scroll != NULL)
- {
- SDL_Surface *tile = get_surface_from_base64(gd_caveset_data->title_screen_scroll);
+ // create background surface
+ SDL_Surface *back = SDL_CreateRGBSurface(0, w, h, 32, 0, 0, 0, 0);
+ int x, y;
- if (tile != NULL)
- {
- int x, y;
+ // fill background surface with tile
+ for (y = 0; y < h; y += tile->h)
+ for (x = 0; x < w; x += tile->w)
+ SDLBlitSurface(tile, back, 0, 0, tile->w, tile->h, x, y);
+
+ // background tile surface not needed anymore
+ SDL_FreeSurface(tile);
+
+ return back;
+}
- // create background surface
- SDL_Surface *back = SDL_CreateRGBSurface(0, surface->w, surface->h, 32, 0, 0, 0, 0);
+static SDL_Surface *get_title_screen_surface(int nr)
+{
+ if (gd_caveset_data == NULL)
+ return NULL;
- // fill background surface with tile
- for (y = 0; y < surface->h; y += tile->h)
- for (x = 0; x < surface->w; x += tile->w)
- SDLBlitSurface(tile, back, 0, 0, tile->w, tile->h, x, y);
+ // do not use title screen background without foreground image
+ if (nr == 1 && gd_title_screen_bitmaps[0] == NULL)
+ return NULL;
- // copy masked screen over background surface
- SDLBlitSurface(back, target, 0, 0, surface->w, surface->h, 0, 0);
+ char *data = (nr == 0 ? gd_caveset_data->title_screen : gd_caveset_data->title_screen_scroll);
- // free temporary surfaces
- SDL_FreeSurface(tile);
- SDL_FreeSurface(back);
- }
- }
+ if (data == NULL)
+ return NULL;
- SDLBlitSurface(surface, target, 0, 0, surface->w, surface->h, 0, 0);
+ SDL_Surface *surface = get_surface_from_base64(data);
- SDL_FreeSurface(surface);
+ if (surface == NULL)
+ return NULL;
- return target;
+ return (nr == 0 ? surface : get_title_screen_background_surface(surface));
}
-static void set_title_screen_bitmap(void)
+static void set_title_screen_bitmap(int nr)
{
- if (gd_title_screen_bitmap != NULL)
- FreeBitmap(gd_title_screen_bitmap);
+ if (gd_title_screen_bitmaps[nr] != NULL)
+ FreeBitmap(gd_title_screen_bitmaps[nr]);
- gd_title_screen_bitmap = NULL;
+ gd_title_screen_bitmaps[nr] = NULL;
- SDL_Surface *surface = get_title_screen_surface();
+ SDL_Surface *surface = get_title_screen_surface(nr);
if (surface == NULL)
return;
int height_scaled = surface->h * 2;
SDL_Surface *surface_scaled = SDLZoomSurface(surface, width_scaled, height_scaled);
- gd_title_screen_bitmap = SDLGetBitmapFromSurface(surface_scaled);
+ gd_title_screen_bitmaps[nr] = SDLGetBitmapFromSurface(surface_scaled);
SDL_FreeSurface(surface);
SDL_FreeSurface(surface_scaled);
}
-Bitmap *gd_get_title_screen_bitmap(void)
+static void set_title_screen_bitmaps(void)
+{
+ int i;
+
+ for (i = 0; i < 2; i++)
+ set_title_screen_bitmap(i);
+}
+
+Bitmap **gd_get_title_screen_bitmaps(void)
{
static char *levelset_subdir_last = NULL;
// check if stored cave set has changed
if (!strEqual(gd_caveset_data->levelset_subdir, levelset_subdir_last))
- set_title_screen_bitmap();
+ set_title_screen_bitmaps();
setString(&levelset_subdir_last, gd_caveset_data->levelset_subdir);
- return gd_title_screen_bitmap;
+ return gd_title_screen_bitmaps;
}
projects / rocksndiamonds.git / blobdiff