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52 lines
1.5 KiB
52 lines
1.5 KiB
#include "DiabloUI/art_draw.h" |
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#include "display.h" |
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namespace dvl { |
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extern SDL_Surface *pal_surface; |
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extern unsigned int pal_surface_palette_version; |
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void DrawArt(int screenX, int screenY, Art *art, int nFrame, |
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decltype(SDL_Rect().w) srcW, decltype(SDL_Rect().h) srcH) |
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{ |
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screenX += PANEL_LEFT; |
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if (screenY >= SCREEN_HEIGHT || screenX >= SCREEN_WIDTH || art->surface == nullptr) |
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return; |
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SDL_Rect src_rect = { |
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0, |
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static_cast<decltype(SDL_Rect().y)>(nFrame * art->h()), |
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static_cast<decltype(SDL_Rect().w)>(art->w()), |
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static_cast<decltype(SDL_Rect().h)>(art->h()) |
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}; |
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ScaleOutputRect(&src_rect); |
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if (srcW && srcW < src_rect.w) |
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src_rect.w = srcW; |
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if (srcH && srcH < src_rect.h) |
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src_rect.h = srcH; |
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SDL_Rect dst_rect = { screenX, screenY, src_rect.w, src_rect.h }; |
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ScaleOutputRect(&dst_rect); |
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if (art->surface->format->BitsPerPixel == 8 && art->palette_version != pal_surface_palette_version) { |
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if (SDLC_SetSurfaceColors(art->surface, pal_surface->format->palette) <= -1) |
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ErrSdl(); |
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art->palette_version = pal_surface_palette_version; |
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} |
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if (SDL_BlitSurface(art->surface, &src_rect, GetOutputSurface(), &dst_rect) < 0) |
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ErrSdl(); |
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} |
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void DrawAnimatedArt(Art *art, int screenX, int screenY) { |
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DrawArt(screenX, screenY, art, GetAnimationFrame(art->frames)); |
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} |
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int GetAnimationFrame(int frames, int fps) |
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{ |
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int frame = (SDL_GetTicks() / fps) % frames; |
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return frame > frames ? 0 : frame; |
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} |
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} // namespace dvl
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