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Tilemaps can have two objects placed on it, 'p_foreground' and 'p_vanishing' whose placement form a virtual perspective plane, which causes sprites to scale as they move up and down the screen between them, creating the illusion of depth on the screen

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This commit is contained in:
Andrew Kesterson
2026-05-13 09:57:24 -04:00
parent b8dee456ca
commit 53e4f5c14f
6 changed files with 87 additions and 28 deletions
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9
src/actor.c
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@@ -254,8 +254,8 @@ akerr_ErrorContext *akgl_actor_render(akgl_Actor *obj, SDL_Renderer *renderer)
dest.x = (obj->x - camera.x);
dest.y = (obj->y - camera.y);
}
dest.w = curSprite->width;
dest.h = curSprite->width;
dest.w = curSprite->width * obj->scale;
dest.h = curSprite->width * obj->scale;
SDL_RenderTexture(renderer, curSprite->sheet->texture, &src, &dest);
SUCCEED_RETURN(errctx);
@@ -300,6 +300,11 @@ void akgl_registry_iterate_actor(void *userdata, SDL_PropertiesID registry, cons
if ( AKGL_BITMASK_HAS(opflags->flags, AKGL_ITERATOR_OP_UPDATE) ) {
CATCH(errctx, obj->updatefunc(obj));
}
if ( AKGL_BITMASK_HAS(opflags->flags, AKGL_ITERATOR_OP_TILEMAPSCALE) ) {
CATCH(errctx, akgl_tilemap_scale_actor(&gamemap, obj));
} else {
obj->scale = 1.0;
}
if ( AKGL_BITMASK_HAS(opflags->flags, AKGL_ITERATOR_OP_RENDER) ) {
CATCH(errctx, obj->renderfunc(obj, renderer));
}