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70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "illusions/illusions.h"
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#include "illusions/threads/scriptthread.h"
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#include "illusions/scriptopcodes.h"
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namespace Illusions {
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// ScriptThread
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ScriptThread::ScriptThread(IllusionsEngine *vm, uint32 threadId, uint32 callingThreadId, uint notifyFlags,
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byte *scriptCodeIp, uint32 value8, uint32 valueC, uint32 value10)
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: Thread(vm, threadId, callingThreadId, notifyFlags), _scriptCodeIp(scriptCodeIp), _value8(value8),
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_valueC(valueC), _value10(value10), _sequenceStalled(0) {
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_type = kTTScriptThread;
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_sceneId = _vm->getCurrentScene();
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}
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int ScriptThread::onUpdate() {
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OpCall opCall;
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opCall._result = kTSRun;
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opCall._callerThreadId = _threadId;
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while (!_terminated && opCall._result == kTSRun) {
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loadOpcode(opCall);
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execOpcode(opCall);
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_scriptCodeIp += opCall._deltaOfs;
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}
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if (_terminated)
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opCall._result = kTSTerminate;
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return opCall._result;
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}
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void ScriptThread::loadOpcode(OpCall &opCall) {
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if (_vm->getGameId() == kGameIdDuckman) {
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opCall._op = _scriptCodeIp[0] & 0x7F;
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opCall._opSize = _scriptCodeIp[1];
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opCall._threadId = _scriptCodeIp[0] & 0x80 ? _threadId : 0;
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} else {
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opCall._op = _scriptCodeIp[0];
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opCall._opSize = _scriptCodeIp[1] >> 1;
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opCall._threadId = _scriptCodeIp[1] & 1 ? _threadId : 0;
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}
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opCall._code = _scriptCodeIp + 2;
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opCall._deltaOfs = opCall._opSize;
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}
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void ScriptThread::execOpcode(OpCall &opCall) {
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_vm->_scriptOpcodes->execOpcode(this, opCall);
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}
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} // End of namespace Illusions
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