/*
* Copyright 2014 MovingBlocks
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.terasology.engine.subsystem.headless.mode;
import org.terasology.engine.GameEngine;
import org.terasology.engine.StateChangeSubscriber;
import org.terasology.engine.modes.GameState;
import org.terasology.engine.modes.StateMainMenu;
import org.terasology.registry.CoreRegistry;
/**
* This listener checks whether the engine goes back to the main menu, which for a headless server signals the server
* should be shut down. This happens mainly in cases where the loading process was not successful.
*/
public class HeadlessStateChangeListener implements StateChangeSubscriber {
@Override
public void onStateChange() {
GameEngine engine = CoreRegistry.get(GameEngine.class);
GameState state = engine.getState();
if (state instanceof StateMainMenu) {
engine.shutdown();
}
}
}