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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program 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; either version 2
* of the License, or (at your option) any later version.
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "macventure/macventure.h"
#include "macventure/script.h"
#include "macventure/world.h"
#include "macventure/container.h"
namespace MacVenture {
ScriptEngine::ScriptEngine(World * world) {
_world = world;
_scripts = new Container("Shadowgate II/Shadow Filter");
}
ScriptEngine::~ScriptEngine() {
if (_scripts)
delete _scripts;
}
bool ScriptEngine::runControl(ControlAction action, ObjID source, ObjID destination, Common::Point delta) {
//debug(7, "SCRIPT: Running control %d from obj %d into obj %d, at delta (%d, %d)",
// action, source, destination, delta.x, delta.y);
EngineFrame frame;
frame.action = action;
frame.src = source;
frame.dest = destination;
frame.x = delta.x;
frame.y = delta.y;
frame.haltedInSaves = false;
frame.haltedInFirst = false;
frame.haltedInFamily = false;
_frames.push_back(frame);
debug(7, "SCRIPT: Stored frame %d, action: %d src: %d dest: %d point: (%d, %d)",
_frames.size() - 1, frame.action, frame.src, frame.dest, frame.x, frame.y);
return resume(true);
}
bool ScriptEngine::resume(bool execAll) {
debug(7, "SCRIPT: Resume");
while (_frames.size()) {
bool fail = execFrame(execAll);
if (fail) return true;
}
return false;
}
void ScriptEngine::reset() {
_frames.clear();
}
bool ScriptEngine::execFrame(bool execAll) {
bool doFirst = execAll;
bool doFamily = false;
bool fail;
EngineFrame *frame = &_frames.front();
// Do first dispatch script (script 0)
if (frame->haltedInFirst || doFirst) { // We were stuck or it's the first time
frame->haltedInFirst = false;
if (doFirst) { fail = loadScript(frame, 0); }
else { fail = resumeFunc(frame); }
if (fail) {
frame->haltedInFirst = true;
return true;
}
doFamily = true;
frame->familyIdx = 0;
}
// Do scripts in the family of player (ObjID 1)
if (frame->haltedInFamily || doFamily) { // We have to do the family or we were stuck here
frame->haltedInFamily = false;
Common::Array<ObjID> family = _world->getFamily(_world->getObjAttr(1, kAttrParentObject), false);
uint32 i = frame->familyIdx;
for (; i < family.size(); i++) {
if (doFamily) { fail = loadScript(frame, family[i]); }
else { fail = resumeFunc(frame); }
if (fail) { // We are stuck, so we don't shift the frame
frame->haltedInFamily = true;
frame->familyIdx = i;
return true;
}
doFamily = true;
}
}
//Handle saves
/*
uint highest;
uint high;
if (frame->haltedInSaves) {
frame->haltedInSaves = false;
}
do {
highest = 0;
for (uint i = 0; i < frame->haltedInSaves.size)
}
*/
_frames.remove_at(0);
return false;
}
bool ScriptEngine::loadScript(EngineFrame * frame, uint32 scriptID) {
frame->scripts.push_back(ScriptAsset(scriptID, _scripts));
return false;
}
bool ScriptEngine::resumeFunc(EngineFrame * frame) {
bool fail = runFunc();
if (fail) return fail;
frame->scripts.remove_at(0);
if (frame->scripts.size())
return resumeFunc(frame);
return false;
}
bool ScriptEngine::runFunc() {
debug(7, "SCRIPT: I'm running the function");
return false;
}
ScriptAsset::ScriptAsset(ObjID id, Container * container) {
_id = id;
_container = container;
_ip = 0x0;
}
void ScriptAsset::reset() {
_ip = 0x0;
}
uint8 ScriptAsset::fecth() {
uint8 ins = _instructions[_ip];
_ip++;
return ins;
}
void ScriptAsset::loadInstructions() {
uint32 amount = _container->getItemByteSize(_id);
Common::SeekableReadStream *res = _container->getItem(_id);
for (uint i = 0; i < amount; i++) {
_instructions.push_back(res->readByte());
}
debug(7, "SCRIPT: Load %d instructions for script %d", amount, _id);
}
} // End of namespace MacVenture
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