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Location: cpp/openttd-patchpack/source/src/group_cmd.cpp - annotation
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| /* $Id$ */
/*
* 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());
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;
}
}
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