<URL: http://bugs.freeciv.org/Ticket/Display.html?id=38196 >
> [dmarks - Do 15. Mär 2007, 14:31:52]:
>
> The SDL client doesn't support world map fogging for hex tilesets
> (tested with isophex and hex2t). Seems to be a problem in both S2_1
> and trunk.
>
> The terminal gives dozens of:
> PORT ME: canvas_put_sprite_fogged()
>
> ~Daniel
>
Patch attached.
Index: client/gui-sdl/canvas.c
===================================================================
--- client/gui-sdl/canvas.c (Revision 12872)
+++ client/gui-sdl/canvas.c (Arbeitskopie)
@@ -116,13 +116,16 @@
struct sprite *psprite,
bool fog, int fog_x, int fog_y)
{
- /* PORTME */
- freelog(LOG_NORMAL, "PORT ME: canvas_put_sprite_fogged()");
-
- /* FIXME: implement fog */
SDL_Rect dst = {canvas_x, canvas_y, 0, 0};
- alphablit(GET_SURF(psprite), NULL, pcanvas->surf, &dst);
+ if (fog) {
+ SDL_Surface *tmp_surf = blend_surface(GET_SURF(psprite), 160);
+ alphablit(tmp_surf, NULL, pcanvas->surf, &dst);
+ FREESURFACE(tmp_surf);
+ } else {
+ canvas_put_sprite_full(pcanvas, canvas_x, canvas_y, psprite);
+ }
+
}
/****************************************************************************
@@ -163,8 +166,15 @@
void canvas_fog_sprite_area(struct canvas *pcanvas, struct sprite *psprite,
int canvas_x, int canvas_y)
{
- /* PORTME */
- freelog(LOG_NORMAL, "PORT ME: canvas_fog_sprite_area()");
+ SDL_Rect dst = {canvas_x, canvas_y, GET_SURF(psprite)->w,
+ GET_SURF(psprite)->h};
+
+ SDL_Surface *tmp_surf = create_surf_alpha(GET_SURF(psprite)->w,
+ GET_SURF(psprite)->h,
+ SDL_SWSURFACE);
+ SDL_FillRect(tmp_surf, NULL, SDL_MapRGBA(tmp_surf->format, 0, 0, 0, 64));
+ alphablit(tmp_surf, NULL, pcanvas->surf, &dst);
+ FREESURFACE(tmp_surf);
}
/****************************************************************************
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