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JME基础教程代码分析5

2011-08-12 11:27 323 查看

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package com.hello;

import com.jme3.app.SimpleApplication;

import com.jme3.material.Material;

import com.jme3.math.Vector3f;

import com.jme3.scene.Geometry;

import com.jme3.scene.shape.Box;

import com.jme3.math.ColorRGBA;

import com.jme3.input.KeyInput;

import com.jme3.input.MouseInput;

import com.jme3.input.controls.ActionListener;

import com.jme3.input.controls.AnalogListener;

import com.jme3.input.controls.KeyTrigger;

import com.jme3.input.controls.MouseButtonTrigger;

/** Sample 5 - how to map keys and mousebuttons to actions */

public class HelloInput extends SimpleApplication {

public static void main(String[] args) {

HelloInput app = new HelloInput();

app.start();

}

protected Geometry player;

Boolean isRunning=true;

@Override

public void simpleInitApp() {

Box b = new Box(Vector3f.ZERO, 1, 1, 1);

player = new Geometry("Player", b);

Material mat = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");

mat.setColor("Color", ColorRGBA.Blue);

player.setMaterial(mat);

rootNode.attachChild(player);

initKeys(); // load my custom keybinding

}

/** Custom Keybinding: Map named actions to inputs. */

//这里是关键

private void initKeys() {

// You can map one or several inputs to one named action

//查看看addMapping源码，Trigger可以是多个，键盘触发和鼠标触发、其他输入设备触发，映射名称可以自定义

inputManager.addMapping("Pause", new KeyTrigger(KeyInput.KEY_P));

inputManager.addMapping("Left", new KeyTrigger(KeyInput.KEY_J));

inputManager.addMapping("Right", new KeyTrigger(KeyInput.KEY_K));

inputManager.addMapping("Rotate", new KeyTrigger(KeyInput.KEY_SPACE),

new MouseButtonTrigger(MouseInput.BUTTON_LEFT));

// Add the names to the action listener.

//根据键组可以加入监听器

inputManager.addListener(actionListener, new String[]{"Pause"});

inputManager.addListener(analogListener, new String[]{"Left", "Right", "Rotate"});

}

//暂停的监听操作

private ActionListener actionListener = new ActionListener() {

public void onAction(String name, boolean keyPressed, float tpf) {

if (name.equals("Pause") && !keyPressed) {

isRunning = !isRunning;

}

}

};

//旋转和位移控制监听

private AnalogListener analogListener = new AnalogListener() {

public void onAnalog(String name, float value, float tpf) {

if (isRunning) {

if (name.equals("Rotate")) {

player.rotate(0, value*speed, 0);

}

if (name.equals("Right")) {

Vector3f v = player.getLocalTranslation();

player.setLocalTranslation(v.x + value*speed, v.y, v.z);

}

if (name.equals("Left")) {

Vector3f v = player.getLocalTranslation();

player.setLocalTranslation(v.x - value*speed, v.y, v.z);

}

} else {

System.out.println("Press P to unpause.");

}

}

};

}

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