00001 /* $Id: ai_execmode.cpp 17248 2009-08-21 20:21:05Z rubidium $ */ 00002 00003 /* 00004 * This file is part of OpenTTD. 00005 * 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. 00006 * 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. 00007 * 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/>. 00008 */ 00009 00012 #include "ai_execmode.hpp" 00013 #include "../../command_type.h" 00014 #include "../../company_base.h" 00015 #include "../../company_func.h" 00016 #include "../ai_instance.hpp" 00017 00018 bool AIExecMode::ModeProc(TileIndex tile, uint32 p1, uint32 p2, uint procc, CommandCost costs) 00019 { 00020 /* In execution mode we only return 'true', telling the DoCommand it 00021 * should continue with the real execution of the command. */ 00022 return true; 00023 } 00024 00025 AIExecMode::AIExecMode() 00026 { 00027 this->last_mode = this->GetDoCommandMode(); 00028 this->last_instance = this->GetDoCommandModeInstance(); 00029 this->SetDoCommandMode(&AIExecMode::ModeProc, this); 00030 } 00031 00032 AIExecMode::~AIExecMode() 00033 { 00034 if (this->GetDoCommandModeInstance() != this) { 00035 AIInstance *instance = Company::Get(_current_company)->ai_instance; 00036 /* Ignore this error if the AI already died. */ 00037 if (!instance->IsDead()) { 00038 throw AI_FatalError("AIExecMode object was removed while it was not the latest AI*Mode object created."); 00039 } 00040 } 00041 this->SetDoCommandMode(this->last_mode, this->last_instance); 00042 }