diff options
Diffstat (limited to 'src/newgrf.cpp')
| -rw-r--r-- | src/newgrf.cpp | 152 |
1 files changed, 89 insertions, 63 deletions
diff --git a/src/newgrf.cpp b/src/newgrf.cpp index a640b1485..a701b2f37 100644 --- a/src/newgrf.cpp +++ b/src/newgrf.cpp @@ -437,9 +437,16 @@ static void MapSpriteMappingRecolour(PalSpriteID *grf_sprite) } } -typedef bool (*VCI_Handler)(uint engine, int numinfo, int prop, byte **buf, int len); +enum ChangeInfoResult { + CIR_SUCCESS, ///< Variable was parsed and read + CIR_UNHANDLED, ///< Variable was parsed but unread + CIR_UNKNOWN, ///< Variable is unknown + CIR_INVALID_ID, ///< Attempt to modify an invalid ID +}; + +typedef ChangeInfoResult (*VCI_Handler)(uint engine, int numinfo, int prop, byte **buf, int len); -static bool CommonVehicleChangeInfo(EngineInfo *ei, int prop, byte **buf) +static ChangeInfoResult CommonVehicleChangeInfo(EngineInfo *ei, int prop, byte **buf) { switch (prop) { case 0x00: // Introduction date @@ -471,16 +478,16 @@ static bool CommonVehicleChangeInfo(EngineInfo *ei, int prop, byte **buf) break; default: - return false; + return CIR_UNKNOWN; } - return true; + return CIR_SUCCESS; } -static bool RailVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len) +static ChangeInfoResult RailVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len) { byte *buf = *bufp; - bool ret = false; + ChangeInfoResult ret = CIR_SUCCESS; for (int i = 0; i < numinfo; i++) { Engine *e = GetNewEngine(_cur_grffile, VEH_TRAIN, engine + i); @@ -655,7 +662,7 @@ static bool RailVehicleChangeInfo(uint engine, int numinfo, int prop, byte **buf case 0x20: // Air drag /** @todo Air drag for trains. */ grf_load_byte(&buf); - ret = true; + ret = CIR_UNHANDLED; break; case 0x21: // Shorter vehicle @@ -707,7 +714,7 @@ static bool RailVehicleChangeInfo(uint engine, int numinfo, int prop, byte **buf break; default: - ret = !CommonVehicleChangeInfo(ei, prop, &buf); + ret = CommonVehicleChangeInfo(ei, prop, &buf); break; } } @@ -716,10 +723,10 @@ static bool RailVehicleChangeInfo(uint engine, int numinfo, int prop, byte **buf return ret; } -static bool RoadVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len) +static ChangeInfoResult RoadVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len) { byte *buf = *bufp; - bool ret = false; + ChangeInfoResult ret = CIR_SUCCESS; for (int i = 0; i < numinfo; i++) { Engine *e = GetNewEngine(_cur_grffile, VEH_ROAD, engine + i); @@ -796,7 +803,7 @@ static bool RoadVehicleChangeInfo(uint engine, int numinfo, int prop, byte **buf * computations (called rvpower in TTDPatch) is just * missing in OTTD yet. --pasky */ grf_load_byte(&buf); - ret = true; + ret = CIR_UNHANDLED; break; case 0x16: // Cargos available for refitting @@ -811,7 +818,7 @@ static bool RoadVehicleChangeInfo(uint engine, int numinfo, int prop, byte **buf case 0x19: // Air drag /** @todo Tractive effort and air drag for road vehicles. */ grf_load_byte(&buf); - ret = true; + ret = CIR_UNHANDLED; break; case 0x1A: // Refit cost @@ -844,7 +851,7 @@ static bool RoadVehicleChangeInfo(uint engine, int numinfo, int prop, byte **buf break; default: - ret = !CommonVehicleChangeInfo(ei, prop, &buf); + ret = CommonVehicleChangeInfo(ei, prop, &buf); break; } } @@ -853,10 +860,10 @@ static bool RoadVehicleChangeInfo(uint engine, int numinfo, int prop, byte **buf return ret; } -static bool ShipVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len) +static ChangeInfoResult ShipVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len) { byte *buf = *bufp; - bool ret = false; + ChangeInfoResult ret = CIR_SUCCESS; for (int i = 0; i < numinfo; i++) { Engine *e = GetNewEngine(_cur_grffile, VEH_SHIP, engine + i); @@ -928,7 +935,7 @@ static bool ShipVehicleChangeInfo(uint engine, int numinfo, int prop, byte **buf case 0x15: // Canal speed fraction /** @todo Speed fractions for ships on oceans and canals */ grf_load_byte(&buf); - ret = true; + ret = CIR_UNHANDLED; break; case 0x16: // Retire vehicle early @@ -957,7 +964,7 @@ static bool ShipVehicleChangeInfo(uint engine, int numinfo, int prop, byte **buf break; default: - ret = !CommonVehicleChangeInfo(ei, prop, &buf); + ret = CommonVehicleChangeInfo(ei, prop, &buf); break; } } @@ -966,10 +973,10 @@ static bool ShipVehicleChangeInfo(uint engine, int numinfo, int prop, byte **buf return ret; } -static bool AircraftVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len) +static ChangeInfoResult AircraftVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len) { byte *buf = *bufp; - bool ret = false; + ChangeInfoResult ret = CIR_SUCCESS; for (int i = 0; i < numinfo; i++) { Engine *e = GetNewEngine(_cur_grffile, VEH_AIRCRAFT, engine + i); @@ -1066,7 +1073,7 @@ static bool AircraftVehicleChangeInfo(uint engine, int numinfo, int prop, byte * break; default: - ret = !CommonVehicleChangeInfo(ei, prop, &buf); + ret = CommonVehicleChangeInfo(ei, prop, &buf); break; } } @@ -1075,14 +1082,14 @@ static bool AircraftVehicleChangeInfo(uint engine, int numinfo, int prop, byte * return ret; } -static bool StationChangeInfo(uint stid, int numinfo, int prop, byte **bufp, int len) +static ChangeInfoResult StationChangeInfo(uint stid, int numinfo, int prop, byte **bufp, int len) { byte *buf = *bufp; - bool ret = false; + ChangeInfoResult ret = CIR_SUCCESS; if (stid + numinfo > MAX_STATIONS) { grfmsg(1, "StationChangeInfo: Station %u is invalid, max %u, ignoring", stid + numinfo, MAX_STATIONS); - return false; + return CIR_INVALID_ID; } /* Allocate station specs if necessary */ @@ -1094,7 +1101,7 @@ static bool StationChangeInfo(uint stid, int numinfo, int prop, byte **bufp, int /* Check that the station we are modifying is defined. */ if (statspec == NULL && prop != 0x08) { grfmsg(2, "StationChangeInfo: Attempt to modify undefined station %u, ignoring", stid + i); - return false; + return CIR_INVALID_ID; } switch (prop) { @@ -1275,7 +1282,7 @@ static bool StationChangeInfo(uint stid, int numinfo, int prop, byte **bufp, int break; default: - ret = true; + ret = CIR_UNKNOWN; break; } } @@ -1284,14 +1291,14 @@ static bool StationChangeInfo(uint stid, int numinfo, int prop, byte **bufp, int return ret; } -static bool CanalChangeInfo(uint id, int numinfo, int prop, byte **bufp, int len) +static ChangeInfoResult CanalChangeInfo(uint id, int numinfo, int prop, byte **bufp, int len) { byte *buf = *bufp; - bool ret = false; + ChangeInfoResult ret = CIR_SUCCESS; if (id + numinfo > CF_END) { grfmsg(1, "CanalChangeInfo: Canal feature %u is invalid, max %u, ignoreing", id + numinfo, CF_END); - return false; + return CIR_INVALID_ID; } for (int i = 0; i < numinfo; i++) { @@ -1307,7 +1314,7 @@ static bool CanalChangeInfo(uint id, int numinfo, int prop, byte **bufp, int len break; default: - ret = true; + ret = CIR_UNKNOWN; break; } } @@ -1316,14 +1323,14 @@ static bool CanalChangeInfo(uint id, int numinfo, int prop, byte **bufp, int len return ret; } -static bool BridgeChangeInfo(uint brid, int numinfo, int prop, byte **bufp, int len) +static ChangeInfoResult BridgeChangeInfo(uint brid, int numinfo, int prop, byte **bufp, int len) { byte *buf = *bufp; - bool ret = false; + ChangeInfoResult ret = CIR_SUCCESS; if (brid + numinfo > MAX_BRIDGES) { grfmsg(1, "BridgeChangeInfo: Bridge %u is invalid, max %u, ignoring", brid + numinfo, MAX_BRIDGES); - return false; + return CIR_INVALID_ID; } for (int i = 0; i < numinfo; i++) { @@ -1406,7 +1413,7 @@ static bool BridgeChangeInfo(uint brid, int numinfo, int prop, byte **bufp, int break; default: - ret = true; + ret = CIR_UNKNOWN; break; } } @@ -1415,14 +1422,14 @@ static bool BridgeChangeInfo(uint brid, int numinfo, int prop, byte **bufp, int return ret; } -static bool TownHouseChangeInfo(uint hid, int numinfo, int prop, byte **bufp, int len) +static ChangeInfoResult TownHouseChangeInfo(uint hid, int numinfo, int prop, byte **bufp, int len) { byte *buf = *bufp; - bool ret = false; + ChangeInfoResult ret = CIR_SUCCESS; if (hid + numinfo > HOUSE_MAX) { grfmsg(1, "TownHouseChangeInfo: Too many houses loaded (%u), max (%u). Ignoring.", hid + numinfo, HOUSE_MAX); - return false; + return CIR_INVALID_ID; } /* Allocate house specs if they haven't been allocated already. */ @@ -1435,7 +1442,7 @@ static bool TownHouseChangeInfo(uint hid, int numinfo, int prop, byte **bufp, in if (prop != 0x08 && housespec == NULL) { grfmsg(2, "TownHouseChangeInfo: Attempt to modify undefined house %u. Ignoring.", hid + i); - return false; + return CIR_INVALID_ID; } switch (prop) { @@ -1618,7 +1625,7 @@ static bool TownHouseChangeInfo(uint hid, int numinfo, int prop, byte **bufp, in case 0x20: { // @todo Cargo acceptance watch list byte count = grf_load_byte(&buf); for (byte j = 0; j < count; j++) grf_load_byte(&buf); - ret = true; + ret = CIR_UNHANDLED; } break; case 0x21: // long introduction year @@ -1630,7 +1637,7 @@ static bool TownHouseChangeInfo(uint hid, int numinfo, int prop, byte **bufp, in break; default: - ret = true; + ret = CIR_UNKNOWN; break; } } @@ -1639,10 +1646,10 @@ static bool TownHouseChangeInfo(uint hid, int numinfo, int prop, byte **bufp, in return ret; } -static bool GlobalVarChangeInfo(uint gvid, int numinfo, int prop, byte **bufp, int len) +static ChangeInfoResult GlobalVarChangeInfo(uint gvid, int numinfo, int prop, byte **bufp, int len) { byte *buf = *bufp; - bool ret = false; + ChangeInfoResult ret = CIR_SUCCESS; for (int i = 0; i < numinfo; i++) { switch (prop) { @@ -1759,7 +1766,7 @@ static bool GlobalVarChangeInfo(uint gvid, int numinfo, int prop, byte **bufp, i break; default: - ret = true; + ret = CIR_UNKNOWN; break; } } @@ -1768,14 +1775,14 @@ static bool GlobalVarChangeInfo(uint gvid, int numinfo, int prop, byte **bufp, i return ret; } -static bool CargoChangeInfo(uint cid, int numinfo, int prop, byte **bufp, int len) +static ChangeInfoResult CargoChangeInfo(uint cid, int numinfo, int prop, byte **bufp, int len) { byte *buf = *bufp; - bool ret = false; + ChangeInfoResult ret = CIR_SUCCESS; if (cid + numinfo > NUM_CARGO) { grfmsg(2, "CargoChangeInfo: Cargo type %d out of range (max %d)", cid + numinfo, NUM_CARGO - 1); - return false; + return CIR_INVALID_ID; } for (int i = 0; i < numinfo; i++) { @@ -1884,7 +1891,7 @@ static bool CargoChangeInfo(uint cid, int numinfo, int prop, byte **bufp, int le break; default: - ret = true; + ret = CIR_UNKNOWN; break; } } @@ -1894,14 +1901,14 @@ static bool CargoChangeInfo(uint cid, int numinfo, int prop, byte **bufp, int le } -static bool SoundEffectChangeInfo(uint sid, int numinfo, int prop, byte **bufp, int len) +static ChangeInfoResult SoundEffectChangeInfo(uint sid, int numinfo, int prop, byte **bufp, int len) { byte *buf = *bufp; - bool ret = false; + ChangeInfoResult ret = CIR_SUCCESS; if (_cur_grffile->sound_offset == 0) { grfmsg(1, "SoundEffectChangeInfo: No effects defined, skipping"); - return false; + return CIR_INVALID_ID; } for (int i = 0; i < numinfo; i++) { @@ -1909,7 +1916,7 @@ static bool SoundEffectChangeInfo(uint sid, int numinfo, int prop, byte **bufp, if (sound >= GetNumSounds()) { grfmsg(1, "SoundEffectChangeInfo: Sound %d not defined (max %d)", sound, GetNumSounds()); - return false; + return CIR_INVALID_ID; } switch (prop) { @@ -1936,7 +1943,7 @@ static bool SoundEffectChangeInfo(uint sid, int numinfo, int prop, byte **bufp, } break; default: - ret = true; + ret = CIR_UNKNOWN; break; } } @@ -1945,14 +1952,14 @@ static bool SoundEffectChangeInfo(uint sid, int numinfo, int prop, byte **bufp, return ret; } -static bool IndustrytilesChangeInfo(uint indtid, int numinfo, int prop, byte **bufp, int len) +static ChangeInfoResult IndustrytilesChangeInfo(uint indtid, int numinfo, int prop, byte **bufp, int len) { byte *buf = *bufp; - bool ret = false; + ChangeInfoResult ret = CIR_SUCCESS; if (indtid + numinfo > NUM_INDUSTRYTILES) { grfmsg(1, "IndustryTilesChangeInfo: Too many industry tiles loaded (%u), max (%u). Ignoring.", indtid + numinfo, NUM_INDUSTRYTILES); - return false; + return CIR_INVALID_ID; } /* Allocate industry tile specs if they haven't been allocated already. */ @@ -1965,7 +1972,7 @@ static bool IndustrytilesChangeInfo(uint indtid, int numinfo, int prop, byte **b if (prop != 0x08 && tsp == NULL) { grfmsg(2, "IndustryTilesChangeInfo: Attempt to modify undefined industry tile %u. Ignoring.", indtid + i); - return false; + return CIR_INVALID_ID; } switch (prop) { @@ -2046,7 +2053,7 @@ static bool IndustrytilesChangeInfo(uint indtid, int numinfo, int prop, byte **b break; default: - ret = true; + ret = CIR_UNKNOWN; break; } } @@ -2055,14 +2062,14 @@ static bool IndustrytilesChangeInfo(uint indtid, int numinfo, int prop, byte **b return ret; } -static bool IndustriesChangeInfo(uint indid, int numinfo, int prop, byte **bufp, int len) +static ChangeInfoResult IndustriesChangeInfo(uint indid, int numinfo, int prop, byte **bufp, int len) { byte *buf = *bufp; - bool ret = false; + ChangeInfoResult ret = CIR_SUCCESS; if (indid + numinfo > NUM_INDUSTRYTYPES) { grfmsg(1, "IndustriesChangeInfo: Too many industries loaded (%u), max (%u). Ignoring.", indid + numinfo, NUM_INDUSTRYTYPES); - return false; + return CIR_INVALID_ID; } grfmsg(1, "IndustriesChangeInfo: newid %u", indid); @@ -2077,7 +2084,7 @@ static bool IndustriesChangeInfo(uint indid, int numinfo, int prop, byte **bufp, if (prop != 0x08 && indsp == NULL) { grfmsg(2, "IndustriesChangeInfo: Attempt to modify undefined industry %u. Ignoring.", indid + i); - return false; + return CIR_INVALID_ID; } switch (prop) { @@ -2307,7 +2314,7 @@ static bool IndustriesChangeInfo(uint indid, int numinfo, int prop, byte **bufp, break; default: - ret = true; + ret = CIR_UNKNOWN; break; } } @@ -2368,8 +2375,27 @@ static void FeatureChangeInfo(byte *buf, size_t len) while (numprops-- && buf < bufend) { uint8 prop = grf_load_byte(&buf); - if (handler[feature](engine, numinfo, prop, &buf, bufend - buf)) { - grfmsg(1, "FeatureChangeInfo: Ignoring property 0x%02X of feature 0x%02X (not implemented)", prop, feature); + ChangeInfoResult cir = handler[feature](engine, numinfo, prop, &buf, bufend - buf); + switch (cir) { + case CIR_SUCCESS: + break; + + case CIR_UNHANDLED: + grfmsg(1, "FeatureChangeInfo: Ignoring property 0x%02X of feature 0x%02X (not implemented)", prop, feature); + break; + + case CIR_UNKNOWN: + grfmsg(0, "FeatureChangeInfo: Unknown property 0x%02X of feature 0x%02X, disabling", prop, feature); + /* Fall through */ + + case CIR_INVALID_ID: + /* No debug message for an invalid ID, as it has already been output */ + _skip_sprites = -1; + _cur_grfconfig->status = GCS_DISABLED; + _cur_grfconfig->error = CallocT<GRFError>(1); + _cur_grfconfig->error->severity = STR_NEWGRF_ERROR_MSG_FATAL; + _cur_grfconfig->error->message = (cir == CIR_INVALID_ID) ? STR_NEWGRF_ERROR_INVALID_ID : STR_NEWGRF_ERROR_UNKNOWN_PROPERTY; + return; } } } |