// if we got this far, then call the preload method    callEntityScriptMethod(entityID, "preload");} void ScriptEngine::unloadEntityScript(const EntityItemID& entityID) {    if (QThread::currentThread() != thread()) {#ifdef THREAD_DEBUGGING        qCDebug(scriptengine) << "*** WARNING *** ScriptEngine::unloadEntityScript() called on wrong thread [" << QThread::currentThread() << "], invoking on correct thread [" << thread() << "]  "            "entityID:" << entityID;#endif         QMetaObject::invokeMethod(this, "unloadEntityScript",                                  Q_ARG(const EntityItemID&, entityID));        return;    }#ifdef THREAD_DEBUGGING    qCDebug(scriptengine) << "ScriptEngine::unloadEntityScript() called on correct thread [" << thread() << "]  "        "entityID:" << entityID;#endif     if (_entityScripts.contains(entityID)) {        callEntityScriptMethod(entityID, "unload");        _entityScripts.remove(entityID);        stopAllTimersForEntityScript(entityID);    }} void ScriptEngine::unloadAllEntityScripts() {    if (QThread::currentThread() != thread()) {#ifdef THREAD_DEBUGGING        qCDebug(scriptengine) << "*** WARNING *** ScriptEngine::unloadAllEntityScripts() called on wrong thread [" << QThread::currentThread() << "], invoking on correct thread [" << thread() << "]";#endif         QMetaObject::invokeMethod(this, "unloadAllEntityScripts");        return;    }#ifdef THREAD_DEBUGGING    qCDebug(scriptengine) << "ScriptEngine::unloadAllEntityScripts() called on correct thread [" << thread() << "]";#endif    foreach(const EntityItemID& entityID, _entityScripts.keys()) {        callEntityScriptMethod(entityID, "unload");    }    _entityScripts.clear(); #ifdef DEBUG_ENGINE_STATE    qCDebug(scriptengine) << "---- CURRENT STATE OF ENGINE: --------------------------";    QScriptValueIterator it(globalObject());    while (it.hasNext()) {        it.next();        qCDebug(scriptengine) << it.name() << ":" << it.value().toString();    }    qCDebug(scriptengine) << "--------------------------------------------------------";#endif // DEBUG_ENGINE_STATE} void ScriptEngine::refreshFileScript(const EntityItemID& entityID) {    if (!_entityScripts.contains(entityID)) {        return;    }     static bool recurseGuard = false;    if (recurseGuard) {        return;    }    recurseGuard = true;     EntityScriptDetails details = _entityScripts[entityID];    // Check to see if a file based script needs to be reloaded (easier debugging)    if (details.lastModified > 0) {        QString filePath = QUrl(details.scriptText).toLocalFile();        auto lastModified = QFileInfo(filePath).lastModified().toMSecsSinceEpoch();        if (lastModified > details.lastModified) {            scriptInfoMessage("Reloading modified script " + details.scriptText);             QFile file(filePath);            file.open(QIODevice::ReadOnly);            QString scriptContents = QTextStream(&file).readAll();            this->unloadEntityScript(entityID);            this->entityScriptContentAvailable(entityID, details.scriptText, scriptContents, true, true);            if (!_entityScripts.contains(entityID)) {                scriptWarningMessage("Reload script " + details.scriptText + " failed");            } else {                details = _entityScripts[entityID];            }        }    }    recurseGuard = false;} // Execute operation in the appropriate context for (the possibly empty) entityID.// Even if entityID is supplied as currentEntityIdentifier, this still documents the source// of the code being executed (e.g., if we ever sandbox different entity scripts, or provide different// global values for different entity scripts).void ScriptEngine::doWithEnvironment(const EntityItemID& entityID, const QUrl& sandboxURL, std::function<void()> operation) {    EntityItemID oldIdentifier = currentEntityIdentifier;    QUrl oldSandboxURL = currentSandboxURL;    currentEntityIdentifier = entityID;    currentSandboxURL = sandboxURL; #if DEBUG_CURRENT_ENTITY    QScriptValue oldData = this->globalObject().property("debugEntityID");    this->globalObject().setProperty("debugEntityID", entityID.toScriptValue(this)); // Make the entityID available to javascript as a global.    operation();    this->globalObject().setProperty("debugEntityID", oldData);#else    operation();#endif    hadUncaughtExceptions(*this, _fileNameString, this);     currentEntityIdentifier = oldIdentifier;    currentSandboxURL = oldSandboxURL;}void ScriptEngine::callWithEnvironment(const EntityItemID& entityID, const QUrl& sandboxURL, QScriptValue function, QScriptValue thisObject, QScriptValueList args) {    auto operation = [&]() {        function.call(thisObject, args);    };    doWithEnvironment(entityID, sandboxURL, operation);} void ScriptEngine::callEntityScriptMethod(const EntityItemID& entityID, const QString& methodName, const QStringList& params) {    if (QThread::currentThread() != thread()) {#ifdef THREAD_DEBUGGING        qCDebug(scriptengine) << "*** WARNING *** ScriptEngine::callEntityScriptMethod() called on wrong thread [" << QThread::currentThread() << "], invoking on correct thread [" << thread() << "]  "            "entityID:" << entityID << "methodName:" << methodName;#endif         QMetaObject::invokeMethod(this, "callEntityScriptMethod",                                  Q_ARG(const EntityItemID&, entityID),                                  Q_ARG(const QString&, methodName),                                  Q_ARG(const QStringList&, params));        return;    }#ifdef THREAD_DEBUGGING    qCDebug(scriptengine) << "ScriptEngine::callEntityScriptMethod() called on correct thread [" << thread() << "]  "        "entityID:" << entityID << "methodName:" << methodName;#endif     refreshFileScript(entityID);    if (_entityScripts.contains(entityID)) {        EntityScriptDetails details = _entityScripts[entityID];        QScriptValue entityScript = details.scriptObject; // previously loaded        if (entityScript.property(methodName).isFunction()) {            QScriptValueList args;            args << entityID.toScriptValue(this);            args << qScriptValueFromSequence(this, params);            callWithEnvironment(entityID, details.definingSandboxURL, entityScript.property(methodName), entityScript, args);        }     }} void ScriptEngine::callEntityScriptMethod(const EntityItemID& entityID, const QString& methodName, const PointerEvent& event) {    if (QThread::currentThread() != thread()) {#ifdef THREAD_DEBUGGING        qCDebug(scriptengine) << "*** WARNING *** ScriptEngine::callEntityScriptMethod() called on wrong thread [" << QThread::currentThread() << "], invoking on correct thread [" << thread() << "]  "            "entityID:" << entityID << "methodName:" << methodName << "event: mouseEvent";#endif         QMetaObject::invokeMethod(this, "callEntityScriptMethod",                                  Q_ARG(const EntityItemID&, entityID),                                  Q_ARG(const QString&, methodName),                                  Q_ARG(const PointerEvent&, event));        return;    }#ifdef THREAD_DEBUGGING    qCDebug(scriptengine) << "ScriptEngine::callEntityScriptMethod() called on correct thread [" << thread() << "]  "        "entityID:" << entityID << "methodName:" << methodName << "event: pointerEvent";#endif     refreshFileScript(entityID);    if (_entityScripts.contains(entityID)) {        EntityScriptDetails details = _entityScripts[entityID];        QScriptValue entityScript = details.scriptObject; // previously loaded        if (entityScript.property(methodName).isFunction()) {            QScriptValueList args;            args << entityID.toScriptValue(this);            args << event.toScriptValue(this);            callWithEnvironment(entityID, details.definingSandboxURL, entityScript.property(methodName), entityScript, args);        }    }}  void ScriptEngine::callEntityScriptMethod(const EntityItemID& entityID, const QString& methodName, const EntityItemID& otherID, const Collision& collision) {    if (QThread::currentThread() != thread()) {#ifdef THREAD_DEBUGGING        qCDebug(scriptengine) << "*** WARNING *** ScriptEngine::callEntityScriptMethod() called on wrong thread [" << QThread::currentThread() << "], invoking on correct thread [" << thread() << "]  "            "entityID:" << entityID << "methodName:" << methodName << "otherID:" << otherID << "collision: collision";#endif         QMetaObject::invokeMethod(this, "callEntityScriptMethod",                                  Q_ARG(const EntityItemID&, entityID),                                  Q_ARG(const QString&, methodName),                                  Q_ARG(const EntityItemID&, otherID),                                  Q_ARG(const Collision&, collision));        return;    }#ifdef THREAD_DEBUGGING    qCDebug(scriptengine) << "ScriptEngine::callEntityScriptMethod() called on correct thread [" << thread() << "]  "        "entityID:" << entityID << "methodName:" << methodName << "otherID:" << otherID << "collision: collision";#endif        refreshFileScript(entityID);    if (_entityScripts.contains(entityID)) {        EntityScriptDetails details = _entityScripts[entityID];        QScriptValue entityScript = details.scriptObject; // previously loaded        if (entityScript.property(methodName).isFunction()) {            QScriptValueList args;            args << entityID.toScriptValue(this);            args << otherID.toScriptValue(this);            args << collisionToScriptValue(this, collision);            callWithEnvironment(entityID, details.definingSandboxURL, entityScript.property(methodName), entityScript, args);        }    }}

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