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62 lines
2.1 KiB
C++
62 lines
2.1 KiB
C++
/*
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* This file is part of OpenTTD.
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* 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.
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* 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.
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* 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/>.
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*/
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/** @file script_asyncmode.cpp Implementation of ScriptAsyncMode. */
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#include "../../stdafx.h"
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#include "script_asyncmode.hpp"
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#include "../script_instance.hpp"
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#include "../script_fatalerror.hpp"
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#include "../../safeguards.h"
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bool ScriptAsyncMode::AsyncModeProc()
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{
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/* In async mode we only return 'true', telling the DoCommand it
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* should stop run the command in asynchronous/fire-and-forget mode. */
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return true;
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}
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bool ScriptAsyncMode::NonAsyncModeProc()
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{
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/* In non-async mode we only return 'false', normal operation. */
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return false;
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}
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ScriptAsyncMode::ScriptAsyncMode(HSQUIRRELVM vm)
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{
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int nparam = sq_gettop(vm) - 1;
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if (nparam < 1) {
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throw sq_throwerror(vm, "You need to pass a boolean to the constructor");
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}
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SQBool sqasync;
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if (SQ_FAILED(sq_getbool(vm, 2, &sqasync))) {
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throw sq_throwerror(vm, "Argument must be a boolean");
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}
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this->last_mode = this->GetDoCommandMode();
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this->last_instance = this->GetDoCommandModeInstance();
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this->SetDoCommandAsyncMode(sqasync ? &ScriptAsyncMode::AsyncModeProc : &ScriptAsyncMode::NonAsyncModeProc, this);
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}
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void ScriptAsyncMode::FinalRelease()
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{
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if (this->GetDoCommandAsyncModeInstance() != this) {
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/* Ignore this error if the script already died. */
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if (!ScriptObject::GetActiveInstance()->IsDead()) {
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throw Script_FatalError("Asyncmode object was removed while it was not the latest *Mode object created.");
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}
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}
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}
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ScriptAsyncMode::~ScriptAsyncMode()
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{
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this->SetDoCommandAsyncMode(this->last_mode, this->last_instance);
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}
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