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author | bjarni <bjarni@openttd.org> | 2005-01-27 21:00:05 +0000 |
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committer | bjarni <bjarni@openttd.org> | 2005-01-27 21:00:05 +0000 |
commit | 99338d278da52e2f71fe8c4d3f05449a1ad24144 (patch) | |
tree | 5bdf21fd520f2315aba284830d98f9db10e8e388 /engine.c | |
parent | 1ae9e7b4480865289c2793ac1f9bad53090d5d40 (diff) | |
download | openttd-99338d278da52e2f71fe8c4d3f05449a1ad24144.tar.xz |
(svn r1700) - Fix: Hacked clients can no longer be used to build vehicles that are not available yet (Hackykid)
Diffstat (limited to 'engine.c')
-rw-r--r-- | engine.c | 24 |
1 files changed, 24 insertions, 0 deletions
@@ -906,5 +906,29 @@ const ChunkHandler _engine_chunk_handlers[] = { { 'ENGS', LoadSave_ENGS, LoadSave_ENGS, CH_RIFF | CH_LAST}, }; +/* + * returns true if an engine is valid, and it is of the specified type, and buildable by the current player, false otherwise + * + * engine = index of the engine to check + * type = the type the engine should be of (VEH_xxx) + */ +bool IsEngineBuildable(int engine, byte type) { + Engine *e; + + // check if it's an engine that is in the engine array + if (0 > engine || engine >= TOTAL_NUM_ENGINES ) return false; + + e = DEREF_ENGINE(engine); + + // check if it's an engine of specified type + if (e->type != type) return false; + + // check if it's available + if (!HASBIT(e->player_avail, _current_player)) return false; + + return true; +} + + |