/* $Id$ */ /* * This file is part of OpenTTD. * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2. * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>. */ /** @file group_cmd.cpp Handling of the engine groups */ #include "stdafx.h" #include "command_func.h" #include "group.h" #include "train.h" #include "engine_base.h" #include "vehicle_gui.h" #include "window_func.h" #include "vehicle_func.h" #include "autoreplace_base.h" #include "autoreplace_func.h" #include "string_func.h" #include "company_func.h" #include "core/pool_func.hpp" #include "table/strings.h" GroupID _new_group_id; GroupPool _group_pool("Group"); INSTANTIATE_POOL_METHODS(Group) /** * Update the num engines of a groupID. Decrease the old one and increase the new one * @note called in SetTrainGroupID and UpdateTrainGroupID * @param i EngineID we have to update * @param old_g index of the old group * @param new_g index of the new group */ static inline void UpdateNumEngineGroup(EngineID i, GroupID old_g, GroupID new_g) { if (old_g != new_g) { /* Decrease the num engines of EngineID i of the old group if it's not the default one */ if (!IsDefaultGroupID(old_g) && Group::IsValidID(old_g)) Group::Get(old_g)->num_engines[i]--; /* Increase the num engines of EngineID i of the new group if it's not the default one */ if (!IsDefaultGroupID(new_g) && Group::IsValidID(new_g)) Group::Get(new_g)->num_engines[i]++; } } Group::Group(Owner owner) { this->owner = owner; if (!Company::IsValidID(owner)) return; this->num_engines = CallocT<uint16>(Engine::GetPoolSize()); } Group::~Group() { free(this->name); free(this->num_engines); } void InitializeGroup() { _group_pool.CleanPool(); } /** * Create a new vehicle group. * @param tile unused * @param flags type of operation * @param p1 vehicle type * @param p2 unused * @param text unused * @return the cost of this operation or an error */ CommandCost CmdCreateGroup(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text) { VehicleType vt = (VehicleType)p1; if (!IsCompanyBuildableVehicleType(vt)) return CMD_ERROR; if (!Group::CanAllocateItem()) return CMD_ERROR; if (flags & DC_EXEC) { Group *g = new Group(_current_company); g->replace_protection = false; g->vehicle_type = vt; _new_group_id = g->index; InvalidateWindowData(GetWindowClassForVehicleType(vt), (vt << 11) | VLW_GROUP_LIST | _current_company); } return CommandCost(); } /** * Add all vehicles in the given group to the default group and then deletes the group. * @param tile unused * @param flags type of operation * @param p1 index of array group * - p1 bit 0-15 : GroupID * @param p2 unused * @param text unused * @return the cost of this operation or an error */ CommandCost CmdDeleteGroup(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text) { Group *g = Group::GetIfValid(p1); if (g == NULL || g->owner != _current_company) return CMD_ERROR; if (flags & DC_EXEC) { Vehicle *v; /* Add all vehicles belong to the group to the default group */ FOR_ALL_VEHICLES(v) { if (v->group_id == g->index && v->type == g->vehicle_type) v->group_id = DEFAULT_GROUP; } /* Update backupped orders if needed */ if (_backup_orders_data.group == g->index) _backup_orders_data.group = DEFAULT_GROUP; /* If we set an autoreplace for the group we delete, remove it. */ if (_current_company < MAX_COMPANIES) { Company *c; EngineRenew *er; c = Company::Get(_current_company); FOR_ALL_ENGINE_RENEWS(er) { if (er->group_id == g->index) RemoveEngineReplacementForCompany(c, er->from, g->index, flags); } } VehicleType vt = g->vehicle_type; /* Delete the Replace Vehicle Windows */ DeleteWindowById(WC_REPLACE_VEHICLE, g->vehicle_type); delete g; InvalidateWindowData(GetWindowClassForVehicleType(vt), (vt << 11) | VLW_GROUP_LIST | _current_company); } return CommandCost(); } static bool IsUniqueGroupName(const char *name) { const Group *g; FOR_ALL_GROUPS(g) { if (g->name != NULL && strcmp(g->name, name) == 0) return false; } return true; } /** * Rename a group * @param tile unused * @param flags type of operation * @param p1 index of array group * - p1 bit 0-15 : GroupID * @param p2 unused * @param text the new name or an empty string when resetting to the default * @return the cost of this operation or an error */ CommandCost CmdRenameGroup(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text) { Group *g = Group::GetIfValid(p1); if (g == NULL || g->owner != _current_company) return CMD_ERROR; bool reset = StrEmpty(text); if (!reset) { if (strlen(text) >= MAX_LENGTH_GROUP_NAME_BYTES) return CMD_ERROR; if (!IsUniqueGroupName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE); } if (flags & DC_EXEC) { /* Delete the old name */ free(g->name); /* Assign the new one */ g->name = reset ? NULL : strdup(text); InvalidateWindowData(GetWindowClassForVehicleType(g->vehicle_type), (g->vehicle_type << 11) | VLW_GROUP_LIST | _current_company); } return CommandCost(); } /** * Add a vehicle to a group * @param tile unused * @param flags type of operation * @param p1 index of array group * - p1 bit 0-15 : GroupID * @param p2 vehicle to add to a group * - p2 bit 0-15 : VehicleID * @param text unused * @return the cost of this operation or an error */ CommandCost CmdAddVehicleGroup(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text) { Vehicle *v = Vehicle::GetIfValid(p2); GroupID new_g = p1; if (v == NULL || (!Group::IsValidID(new_g) && !IsDefaultGroupID(new_g))) return CMD_ERROR; if (Group::IsValidID(new_g)) { Group *g = Group::Get(new_g); if (g->owner != _current_company || g->vehicle_type != v->type) return CMD_ERROR; } if (v->owner != _current_company || !v->IsPrimaryVehicle()) return CMD_ERROR; if (flags & DC_EXEC) { DecreaseGroupNumVehicle(v->group_id); IncreaseGroupNumVehicle(new_g); switch (v->type) { default: NOT_REACHED(); case VEH_TRAIN: SetTrainGroupID(Train::From(v), new_g); break; case VEH_ROAD: case VEH_SHIP: case VEH_AIRCRAFT: if (v->IsEngineCountable()) UpdateNumEngineGroup(v->engine_type, v->group_id, new_g); v->group_id = new_g; break; } /* Update the Replace Vehicle Windows */ SetWindowDirty(WC_REPLACE_VEHICLE, v->type); InvalidateWindowData(GetWindowClassForVehicleType(v->type), (v->type << 11) | VLW_GROUP_LIST | _current_company); } return CommandCost(); } /** * Add all shared vehicles of all vehicles from a group * @param tile unused * @param flags type of operation * @param p1 index of group array * - p1 bit 0-15 : GroupID * @param p2 type of vehicles * @param text unused * @return the cost of this operation or an error */ CommandCost CmdAddSharedVehicleGroup(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text) { VehicleType type = (VehicleType)p2; if (!Group::IsValidID(p1) || !IsCompanyBuildableVehicleType(type)) return CMD_ERROR; if (flags & DC_EXEC) { Vehicle *v; VehicleType type = (VehicleType)p2; GroupID id_g = p1; /* Find the first front engine which belong to the group id_g * then add all shared vehicles of this front engine to the group id_g */ FOR_ALL_VEHICLES(v) { if (v->type == type && v->IsPrimaryVehicle()) { if (v->group_id != id_g) continue; /* For each shared vehicles add it to the group */ for (Vehicle *v2 = v->FirstShared(); v2 != NULL; v2 = v2->NextShared()) { if (v2->group_id != id_g) CmdAddVehicleGroup(tile, flags, id_g, v2->index, text); } } } InvalidateWindowData(GetWindowClassForVehicleType(type), (type << 11) | VLW_GROUP_LIST | _current_company); } return CommandCost(); } /** * Remove all vehicles from a group * @param tile unused * @param flags type of operation * @param p1 index of group array * - p1 bit 0-15 : GroupID * @param p2 type of vehicles * @param text unused * @return the cost of this operation or an error */ CommandCost CmdRemoveAllVehiclesGroup(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text) { Group *g = Group::GetIfValid(p1); VehicleType type = (VehicleType)p2; if (g == NULL || g->owner != _current_company || !IsCompanyBuildableVehicleType(type)) return CMD_ERROR; if (flags & DC_EXEC) { GroupID old_g = p1; Vehicle *v; /* Find each Vehicle that belongs to the group old_g and add it to the default group */ FOR_ALL_VEHICLES(v) { if (v->type == type && v->IsPrimaryVehicle()) { if (v->group_id != old_g) continue; /* Add The Vehicle to the default group */ CmdAddVehicleGroup(tile, flags, DEFAULT_GROUP, v->index, text); } } InvalidateWindowData(GetWindowClassForVehicleType(type), (type << 11) | VLW_GROUP_LIST | _current_company); } return CommandCost(); } /** * (Un)set global replace protection from a group * @param tile unused * @param flags type of operation * @param p1 index of group array * - p1 bit 0-15 : GroupID * @param p2 * - p2 bit 0 : 1 to set or 0 to clear protection. * @param text unused * @return the cost of this operation or an error */ CommandCost CmdSetGroupReplaceProtection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text) { Group *g = Group::GetIfValid(p1); if (g == NULL || g->owner != _current_company) return CMD_ERROR; if (flags & DC_EXEC) { g->replace_protection = HasBit(p2, 0); InvalidateWindowData(GetWindowClassForVehicleType(g->vehicle_type), (g->vehicle_type << 11) | VLW_GROUP_LIST | _current_company); InvalidateWindowData(WC_REPLACE_VEHICLE, g->vehicle_type); } return CommandCost(); } /** * Decrease the num_vehicle variable before delete an front engine from a group * @note Called in CmdSellRailWagon and DeleteLasWagon, * @param v FrontEngine of the train we want to remove. */ void RemoveVehicleFromGroup(const Vehicle *v) { if (!v->IsPrimaryVehicle()) return; if (!IsDefaultGroupID(v->group_id)) DecreaseGroupNumVehicle(v->group_id); } /** * Affect the groupID of a train to new_g. * @note called in CmdAddVehicleGroup and CmdMoveRailVehicle * @param v First vehicle of the chain. * @param new_g index of array group */ void SetTrainGroupID(Train *v, GroupID new_g) { if (!Group::IsValidID(new_g) && !IsDefaultGroupID(new_g)) return; assert(v->IsFrontEngine() || IsDefaultGroupID(new_g)); for (Vehicle *u = v; u != NULL; u = u->Next()) { if (u->IsEngineCountable()) UpdateNumEngineGroup(u->engine_type, u->group_id, new_g); u->group_id = new_g; } /* Update the Replace Vehicle Windows */ SetWindowDirty(WC_REPLACE_VEHICLE, VEH_TRAIN); } /** * Recalculates the groupID of a train. Should be called each time a vehicle is added * to/removed from the chain,. * @note this needs to be called too for 'wagon chains' (in the depot, without an engine) * @note Called in CmdBuildRailVehicle, CmdBuildRailWagon, CmdMoveRailVehicle, CmdSellRailWagon * @param v First vehicle of the chain. */ void UpdateTrainGroupID(Train *v) { assert(v->IsFrontEngine() || v->IsFreeWagon()); GroupID new_g = v->IsFrontEngine() ? v->group_id : (GroupID)DEFAULT_GROUP; for (Vehicle *u = v; u != NULL; u = u->Next()) { if (u->IsEngineCountable()) UpdateNumEngineGroup(u->engine_type, u->group_id, new_g); u->group_id = new_g; } /* Update the Replace Vehicle Windows */ SetWindowDirty(WC_REPLACE_VEHICLE, VEH_TRAIN); } uint GetGroupNumEngines(CompanyID company, GroupID id_g, EngineID id_e) { if (Group::IsValidID(id_g)) return Group::Get(id_g)->num_engines[id_e]; uint num = Company::Get(company)->num_engines[id_e]; if (!IsDefaultGroupID(id_g)) return num; const Group *g; FOR_ALL_GROUPS(g) { if (g->owner == company) num -= g->num_engines[id_e]; } return num; } void RemoveAllGroupsForCompany(const CompanyID company) { Group *g; FOR_ALL_GROUPS(g) { if (company == g->owner) delete g; } }