904 const ChunkHandler _engine_chunk_handlers[] = { |
904 const ChunkHandler _engine_chunk_handlers[] = { |
905 { 'ENGN', Save_ENGN, Load_ENGN, CH_ARRAY}, |
905 { 'ENGN', Save_ENGN, Load_ENGN, CH_ARRAY}, |
906 { 'ENGS', LoadSave_ENGS, LoadSave_ENGS, CH_RIFF | CH_LAST}, |
906 { 'ENGS', LoadSave_ENGS, LoadSave_ENGS, CH_RIFF | CH_LAST}, |
907 }; |
907 }; |
908 |
908 |
|
909 |
909 /* |
910 /* |
910 * returns true if an engine is valid, and it is of the specified type, and buildable by the current player, false otherwise |
911 * returns true if an engine is valid, of the specified type, and buildable by |
|
912 * the current player, false otherwise |
911 * |
913 * |
912 * engine = index of the engine to check |
914 * engine = index of the engine to check |
913 * type = the type the engine should be of (VEH_xxx) |
915 * type = the type the engine should be of (VEH_xxx) |
914 */ |
916 */ |
915 bool IsEngineBuildable(int engine, byte type) { |
917 bool IsEngineBuildable(uint engine, byte type) |
916 Engine *e; |
918 { |
|
919 const Engine *e; |
917 |
920 |
918 // check if it's an engine that is in the engine array |
921 // check if it's an engine that is in the engine array |
919 if (0 > engine || engine >= TOTAL_NUM_ENGINES ) return false; |
922 if (engine >= TOTAL_NUM_ENGINES) return false; |
920 |
923 |
921 e = DEREF_ENGINE(engine); |
924 e = DEREF_ENGINE(engine); |
922 |
925 |
923 // check if it's an engine of specified type |
926 // check if it's an engine of specified type |
924 if (e->type != type) return false; |
927 if (e->type != type) return false; |