(libgdx小结)游戏摇杆_libgdx怎么实现操纵杆-优快云博客

本文链接：https://blog.youkuaiyun.com/hjd_love_zzt/article/details/20783971

本文介绍如何使用LibGDX在游戏开发中实现游戏摇杆UI组件的创建与交互。包括初始化方法、应用示例及效果展示，适用于需要移动角色的游戏。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

一、初始化方法及常见的API

background = new TextureRegionDrawable(new TextureRegion(texture, 0, 0,128,128));
		knobRegion = new TextureRegionDrawable(new TextureRegion(texture,128,0,128,128));
		
		style = new TouchpadStyle(background, knobRegion);
		
		touchPad = new Touchpad(15, style);//初始化游戏摇杆。(摇杆触碰区域的半径大小,TouchPagStyle)
		touchPad.setBounds(0, 0, 150, 150);//设置摇杆的位置和大小

public void update(){
		if(touchPad.isTouched()){//判断摇杆是否被按下
			x += touchPad.getKnobPercentX()*speed;//改变相应的坐标.
			y += touchPad.getKnobPercentY()*speed;
			
		}
	}

二、应用举例

package com.example.groupactiontest;

import com.badlogic.gdx.ApplicationListener;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL10;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.scenes.scene2d.Stage;
import com.badlogic.gdx.scenes.scene2d.ui.Touchpad;
import com.badlogic.gdx.scenes.scene2d.ui.Touchpad.TouchpadStyle;
import com.badlogic.gdx.scenes.scene2d.utils.TextureRegionDrawable;

public class MyGame implements ApplicationListener {

	Stage stage;
	
	//绘制游戏摇杆的相关类
	Touchpad touchPad;
	TouchpadStyle style;
	TextureRegionDrawable background;
	TextureRegionDrawable knobRegion;
	
	Texture texture;
	Texture killer;
	
	SpriteBatch batch;
	
	public static int speed = 3;//用于控制图片的移动
	int x = 0;
	int y = 0;
	
	@Override
	public void create() {
		stage = new Stage();
		
		texture = new Texture(Gdx.files.internal("touchpad.png"));
		killer = new Texture(Gdx.files.internal("2.png"));
		
		background = new TextureRegionDrawable(new TextureRegion(texture, 0, 0,128,128));
		knobRegion = new TextureRegionDrawable(new TextureRegion(texture,128,0,128,128));
		
		style = new TouchpadStyle(background, knobRegion);
		
		touchPad = new Touchpad(15, style);//初始化游戏摇杆。(摇杆触碰区域的半径大小,TouchPagStyle)
		touchPad.setBounds(0, 0, 150, 150);//设置摇杆的位置和大小
		
		batch = new SpriteBatch();
		
		stage.addActor(touchPad);
		
		Gdx.input.setInputProcessor(stage);
		
	}

	public void update(){
		if(touchPad.isTouched()){//判断摇杆是否被按下
			x += touchPad.getKnobPercentX()*speed;//改变相应的坐标.
			y += touchPad.getKnobPercentY()*speed;
			
		}
	}
	
	
	@Override
	public void dispose() {
		// TODO Auto-generated method stub

	}

	@Override
	public void pause() {
		// TODO Auto-generated method stub

	}

	@Override
	public void render() {
		Gdx.gl.glClearColor(1, 1, 1, 1);
		Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
		
		update();//这个方法别漏了
		
		batch.begin();
		batch.draw(killer, x,y, 70,70);
		batch.end();
		
		stage.act();
		stage.draw();
		
	}

	@Override
	public void resize(int arg0, int arg1) {
		// TODO Auto-generated method stub

	}

	@Override
	public void resume() {
		// TODO Auto-generated method stub

	}

}

三、效果图