From: Holger Schemel Date: Thu, 4 Apr 2024 18:31:13 +0000 (+0200) Subject: added showing scrolling title screen background for native BD cavesets X-Git-Tag: 4.4.0.0-test-1~108 X-Git-Url: https://git.artsoft.org/?a=commitdiff_plain;h=06ca530f089d0f4a0e98f1ce11fd47387bd20a0d;p=rocksndiamonds.git added showing scrolling title screen background for native BD cavesets --- diff --git a/src/game_bd/bd_graphics.c b/src/game_bd/bd_graphics.c index 2dce2224..fe2e6b45 100644 --- a/src/game_bd/bd_graphics.c +++ b/src/game_bd/bd_graphics.c @@ -44,8 +44,8 @@ static Bitmap *gd_tile_bitmap = NULL; // 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; @@ -780,60 +780,66 @@ static SDL_Surface *get_surface_from_base64(const char *base64_data) 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); - // create background surface - SDL_Surface *back = SDL_CreateRGBSurface(0, surface->w, surface->h, 32, 0, 0, 0, 0); + // background tile surface not needed anymore + SDL_FreeSurface(tile); - // 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); + return back; +} - // copy masked screen over background surface - SDLBlitSurface(back, target, 0, 0, surface->w, surface->h, 0, 0); +static SDL_Surface *get_title_screen_surface(int nr) +{ + if (gd_caveset_data == NULL) + return NULL; - // free temporary surfaces - SDL_FreeSurface(tile); - SDL_FreeSurface(back); - } - } + // do not use title screen background without foreground image + if (nr == 1 && gd_title_screen_bitmaps[0] == NULL) + return NULL; - SDLBlitSurface(surface, target, 0, 0, surface->w, surface->h, 0, 0); + char *data = (nr == 0 ? gd_caveset_data->title_screen : gd_caveset_data->title_screen_scroll); - SDL_FreeSurface(surface); + if (data == NULL) + return NULL; + + SDL_Surface *surface = get_surface_from_base64(data); + + 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; @@ -842,13 +848,21 @@ static void set_title_screen_bitmap(void) 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; @@ -861,9 +875,9 @@ Bitmap *gd_get_title_screen_bitmap(void) // 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; } diff --git a/src/game_bd/bd_graphics.h b/src/game_bd/bd_graphics.h index ce38a7e0..dd9eed1a 100644 --- a/src/game_bd/bd_graphics.h +++ b/src/game_bd/bd_graphics.h @@ -45,6 +45,6 @@ void gd_scroll_to_origin(void); int get_scroll_x(void); int get_scroll_y(void); -Bitmap *gd_get_title_screen_bitmap(void); +Bitmap **gd_get_title_screen_bitmaps(void); #endif // BD_GRAPHICS_H diff --git a/src/game_bd/export_bd.h b/src/game_bd/export_bd.h index 3b8c7721..688d506e 100644 --- a/src/game_bd/export_bd.h +++ b/src/game_bd/export_bd.h @@ -112,7 +112,7 @@ unsigned int InitEngineRandom_BD(int); void InitGameEngine_BD(void); void GameActions_BD(byte[MAX_PLAYERS]); -Bitmap *GetTitleScreen_BD(void); +Bitmap **GetTitleScreenBitmaps_BD(void); void CoverScreen_BD(void); void BlitScreenToBitmap_BD(Bitmap *); diff --git a/src/game_bd/main_bd.c b/src/game_bd/main_bd.c index 77af13a2..1a7705b6 100644 --- a/src/game_bd/main_bd.c +++ b/src/game_bd/main_bd.c @@ -426,9 +426,14 @@ void GameActions_BD(byte action[MAX_PLAYERS]) // graphics functions // ============================================================================ -Bitmap *GetTitleScreen_BD(void) +Bitmap **GetTitleScreenBitmaps_BD(void) { - return gd_get_title_screen_bitmap(); + Bitmap **title_screen_bitmaps = gd_get_title_screen_bitmaps(); + + if (title_screen_bitmaps == NULL || title_screen_bitmaps[0] == NULL) + return NULL; + + return title_screen_bitmaps; } void CoverScreen_BD(void) diff --git a/src/screens.c b/src/screens.c index 29e4f3cb..adeebb13 100644 --- a/src/screens.c +++ b/src/screens.c @@ -1119,6 +1119,27 @@ static int compareTitleControlInfo(const void *object1, const void *object2) return compare_result; } +static boolean CheckTitleScreen_BD(int nr, boolean initial) +{ + // only show BD style title screen for native BD level sets + if (level.game_engine_type != GAME_ENGINE_TYPE_BD) + return FALSE; + + // only show BD style title screen for first title screen of a level set + if (initial || nr != 0) + return FALSE; + + int graphic = getTitleScreenGraphic(nr, initial); + Bitmap *bitmap = graphic_info[graphic].bitmap; + + // only show BD style title screen if no other title screen defined + if (bitmap != NULL) + return FALSE; + + // check if BD style title screen defined + return (GetTitleScreenBitmaps_BD() != NULL); +} + static void InitializeTitleControlsExt_AddTitleInfo(boolean is_image, boolean initial, int nr, int sort_priority) @@ -1145,8 +1166,8 @@ static void InitializeTitleControls_CheckTitleInfo(boolean initial) boolean has_title_screen = (bitmap != NULL); // check for optional title screen of native BD style level set - if (!has_title_screen && level.game_engine_type == GAME_ENGINE_TYPE_BD && !initial && i == 0) - has_title_screen = (GetTitleScreen_BD() != NULL); + if (CheckTitleScreen_BD(i, initial)) + has_title_screen = TRUE; if (has_title_screen) InitializeTitleControlsExt_AddTitleInfo(TRUE, initial, i, sort_priority); @@ -1601,8 +1622,10 @@ static void DrawInfoScreen_Headline(int screen_nr, int num_screens, static void DrawTitleScreenImage(int nr, boolean initial) { + static int frame_counter = 0; int graphic = getTitleScreenGraphic(nr, initial); Bitmap *bitmap = graphic_info[graphic].bitmap; + Bitmap *bitmap_background = NULL; int draw_masked = graphic_info[graphic].draw_masked; int width = graphic_info[graphic].width; int height = graphic_info[graphic].height; @@ -1611,9 +1634,12 @@ static void DrawTitleScreenImage(int nr, boolean initial) int dst_x, dst_y; // check for optional title screen of native BD style level set - if (bitmap == NULL && level.game_engine_type == GAME_ENGINE_TYPE_BD && !initial && nr == 0) + if (CheckTitleScreen_BD(nr, initial)) { - bitmap = GetTitleScreen_BD(); + Bitmap **title_screen_bitmaps = GetTitleScreenBitmaps_BD(); + + bitmap = title_screen_bitmaps[0]; + bitmap_background = title_screen_bitmaps[1]; if (bitmap != NULL) { @@ -1650,7 +1676,19 @@ static void DrawTitleScreenImage(int nr, boolean initial) ClearRectangleOnBackground(drawto, 0, 0, WIN_XSIZE, WIN_YSIZE); - if (DrawingOnBackground(dst_x, dst_y) && draw_masked) + boolean draw_masked_final = (DrawingOnBackground(dst_x, dst_y) && draw_masked); + + if (bitmap_background != NULL) + { + int size = bitmap_background->height - bitmap->height; + int offset = frame_counter++ % size; + + BlitBitmap(bitmap_background, drawto, src_x, src_y + offset, width, height, dst_x, dst_y); + + draw_masked_final = TRUE; + } + + if (draw_masked_final) BlitBitmapMasked(bitmap, drawto, src_x, src_y, width, height, dst_x, dst_y); else BlitBitmap(bitmap, drawto, src_x, src_y, width, height, dst_x, dst_y); @@ -2096,6 +2134,21 @@ void HandleTitleScreen(int mx, int my, int dx, int dy, int button) return_to_main_menu = TRUE; } } + else + { + tci = &title_controls[title_screen_nr]; + + // check for optional title screen of native BD style level set + if (tci->is_image && CheckTitleScreen_BD(tci->local_nr, tci->initial)) + { + Bitmap **title_screen_bitmaps = GetTitleScreenBitmaps_BD(); + + // if title screen is animated, draw title screen animation + if (title_screen_bitmaps[0] != NULL && + title_screen_bitmaps[1] != NULL) + DrawTitleScreenImage(tci->local_nr, tci->initial); + } + } if (return_to_main_menu) {