Mercurial > hg > openttd
changeset 3565:f0e34d0b43fa draft
(svn r4446) - Add function to determine if a Sprite ID exists.
author | peter1138 <peter1138@openttd.org> |
---|---|
date | Sun, 16 Apr 2006 11:26:23 +0000 |
parents | 4ec87b7cb8eb |
children | ad93fb7ceb94 |
files | spritecache.c spritecache.h |
diffstat | 2 files changed, 9 insertions(+), 1 deletions(-) [+] |
line wrap: on
line diff
--- a/spritecache.c +++ b/spritecache.c @@ -71,6 +71,13 @@ return true; } +/* Check if the given Sprite ID exists */ +bool SpriteExists(SpriteID id) +{ + /* Special case for Sprite ID zero -- its position is also 0... */ + return _sprite_file_pos[id] != 0 || id == 0; +} + static void* AllocSprite(size_t); static void* ReadSprite(SpriteID id) @@ -80,7 +87,7 @@ DEBUG(spritecache, 9) ("load sprite %d", id); - if (_sprite_file_pos[id] == 0 && id != 0) { + if (!SpriteExists(id)) { error( "Tried to load non-existing sprite #%d.\n" "Probable cause: Wrong/missing NewGRFs",