static void ChangeTileOwner_Water(TileIndex tile, Owner old_owner, Owner new_owner) { if (!IsTileOwner(tile, old_owner)) return; bool is_lock_middle = IsLock(tile) && GetLockPart(tile) == LOCK_PART_MIDDLE; /* No need to dirty company windows here, we'll redraw the whole screen anyway. */ if (is_lock_middle) Company::Get(old_owner)->infrastructure.water -= 3 * LOCK_DEPOT_TILE_FACTOR; // Lock has three parts. if (GetWaterClass(tile) == WATER_CLASS_CANAL && is_lock_middle) { Company::Get(old_owner)->infrastructure.water--; } if (new_owner != INVALID_OWNER) { if (is_lock_middle) Company::Get(new_owner)->infrastructure.water += 3 * LOCK_DEPOT_TILE_FACTOR; // Lock has three parts. if (GetWaterClass(tile) == WATER_CLASS_CANAL && is_lock_middle) { Company::Get(new_owner)->infrastructure.water++; } /* Only subtract from the old owner here if the new owner is valid, * otherwise we clear ship depots and canal water below. */ if (GetWaterClass(tile) == WATER_CLASS_CANAL && !is_lock_middle) { Company::Get(old_owner)->infrastructure.water--; Company::Get(new_owner)->infrastructure.water++; } if (IsShipDepot(tile)) { Company::Get(old_owner)->infrastructure.water -= LOCK_DEPOT_TILE_FACTOR; Company::Get(new_owner)->infrastructure.water += LOCK_DEPOT_TILE_FACTOR; } SetTileOwner(tile, new_owner); return; } /* Remove depot */ if (IsShipDepot(tile)) DoCommand(tile, 0, 0, DC_EXEC | DC_BANKRUPT, CMD_LANDSCAPE_CLEAR); /* Set owner of canals and locks ... and also canal under dock there was before. * Check if the new owner after removing depot isn't OWNER_WATER. */ if (IsTileOwner(tile, old_owner)) { if (GetWaterClass(tile) == WATER_CLASS_CANAL && !is_lock_middle) Company::Get(old_owner)->infrastructure.water--; if (GetWaterClass(tile) == WATER_CLASS_CANAL && is_lock_middle) { Company::Get(old_owner)->infrastructure.water--; } SetTileOwner(tile, OWNER_NONE); } }