轻松上手!Java游戏开发从零开始指南
最编程
2024-07-23 21:50:39
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import com.almasb.fxgl.app.GameApplication;
import com.almasb.fxgl.app.GameSettings;
import com.almasb.fxgl.core.math.FXGLMath;
import com.almasb.fxgl.dsl.FXGL;
import com.almasb.fxgl.entity.Entity;
import com.almasb.fxgl.physics.CollisionHandler;
import javafx.scene.input.KeyCode;
import javafx.scene.paint.Color;
import javafx.util.Duration;
import java.util.Map;
import static com.almasb.fxgl.dsl.FXGL.*;
import static com.almasb.fxgl.dsl.FXGL.onCollisionBegin;
/**
* @author lhDream
*/
public class HelloWorldApp extends GameApplication {
/**
* 玩家实体
*/
private Entity player;
/**
* 初始化设置
* @param settings 配置对象
*/
@Override
protected void initSettings(GameSettings settings) {
settings.setTitle("Hello world");
settings.setWidth(600);
settings.setHeight(600);
settings.setMainMenuEnabled(true);
settings.setGameMenuEnabled(true);
}
/**
* 初始化游戏内容
*/
@Override
protected void initGame() {
// 注册实体工厂
FXGL.getGameWorld().addEntityFactory(new DemoEntityFactory());
// 在界面正中间生成玩家实体
player = FXGL.spawn("Player",FXGL.getAppWidth()/2,FXGL.getAppHeight()/2);
// 在界面200,200位置生成一个Gold实体
spawn("Gold", 200,200);
// 每秒生成一个敌方实体
run(()->{
// 生成坐标
var x = FXGLMath.random(0,getAppWidth()-50);
var y = FXGLMath.random(-50,0);
spawn("Enemy",x,y);
},Duration.seconds(1));
}
/**
* 初始化输入
*/
@Override
protected void initInput() {
onKey(KeyCode.W,"上",()->{
player.translateY(-5);
});
onKey(KeyCode.S,"下",()->{
player.translateY(+5);
});
onKey(KeyCode.A,"左",()->{
player.translateX(-5);
});
onKey(KeyCode.D,"右",()->{
player.translateX(+5);
});
}
/**
* 初始化物理引擎(碰撞效果)
*/
@Override
protected void initPhysics() {
getPhysicsWorld().addCollisionHandler(new CollisionHandler(EntityType.PLAYER,EntityType.GOLD){
@Override
protected void onCollisionBegin(Entity player, Entity gold) {
//将gold对象从游戏中移除
gold.removeFromWorld();
// 设置参数+1
inc("integral",+1);
// 在界面内随机位置生成一个 Gold对象
spawn("Gold", FXGLMath.random(0,getAppWidth()-50),FXGLMath.random(0,getAppHeight()-50));
}
});
onCollisionBegin(EntityType.PLAYER, EntityType.ENEMY,(player, enemy)->{
inc("integral",-1);
});
}
/**
* 初始化参数
* @param vars
*/
@Override
protected void initGameVars(Map<String, Object> vars) {
vars.put("integral",0);
}
/**
* 初始化UI
*/
@Override
protected void initUI() {
// 初始化 Text 字体大小18 颜色 粉色
var scoreText = getUIFactoryService().newText("", Color.PINK, 18);
scoreText.textProperty().bind(getip("integral").asString("分数: %d"));
addUINode(scoreText, 10, 30);
}
/**
* main 程序的开始
* @param args 参数
*/
public static void main(String[] args) {
launch(args);
}
}
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