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#include <SDL.h>
#include "area.h"
#include "layer.h"
#include "viewport.h"
void
render_area_to_viewport(struct area *area, struct viewport *vp)
{
SDL_Rect srcrect;
SDL_Rect dstrect;
srcrect.x = vp->x;
srcrect.y = vp->y;
srcrect.w = vp->w;
srcrect.h = vp->h;
dstrect.x = 0;
dstrect.y = 0;
dstrect.w = vp->w;
dstrect.h = vp->h;
render_area_to_surface(area, &srcrect, vp->screen, &dstrect);
}
void
render_area_to_surface(struct area *area, SDL_Rect *arearect,
SDL_Surface *dst, SDL_Rect *dstrect)
{
/* Fast fill with black to avoid artifacts in off-map pixels. */
SDL_FillRect(dst, dstrect, 0);
/* Blit ground layer. */
SDL_BlitSurface(area->map_layers[LAYER_GROUND], arearect,
dst, dstrect);
/* Blit low objects layer. */
SDL_BlitSurface(area->map_layers[LAYER_OBJ_LOW], arearect,
dst, dstrect);
/* TODO: Blit low sprites. */
/* Blit middle objects layer. */
SDL_BlitSurface(area->map_layers[LAYER_OBJ_MID], arearect,
dst, dstrect);
/* TODO: Blit high sprites. */
/* Blit high objects layer. */
SDL_BlitSurface(area->map_layers[LAYER_OBJ_HIGH], arearect,
dst, dstrect);
}
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