Java spawnTime Android Studio的LibGDX问题

我正试图让这些障碍在我即将完成的游戏中重新生成，然而，Android Studio抱怨出现了一系列新错误：

Error:(133, 4) Gradle: error: illegal start of expression
Error:(133, 12) Gradle: error: illegal start of expression
Error:(133, 28) Gradle: error: ';' expected
Error:(136, 19) Gradle: error: ';' expected
Error:(170, 22) Gradle: error: ';' expected
Error:(170, 34) Gradle: error: ';' expected
Error:(184, 23) Gradle: error: ';' expected
Error:(188, 1) Gradle: error: reached end of file while parsing

我应该创建一个实体类吗？以下是我的MainGame类的代码：

package com.circlecrashavoider;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.physics.box2d.Contact;
import com.badlogic.gdx.physics.box2d.ContactImpulse;
import com.badlogic.gdx.physics.box2d.ContactListener;
import com.badlogic.gdx.physics.box2d.Manifold;
import com.badlogic.gdx.physics.box2d.World;
import com.badlogic.gdx.scenes.scene2d.Stage;
import com.badlogic.gdx.utils.viewport.FitViewport;
import com.circlecrashavoider.entities.FloorEntity;
import com.circlecrashavoider.entities.ObstacleEntity;
import com.circlecrashavoider.entities.ObstacleEntity2;
import com.circlecrashavoider.entities.PlayerEntity;

import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import java.util.Random;

/**
 * Created by Felipe on 2/22/2016.
 */

public class GameScreen extends BaseScreen {

    private Stage stage;

    private World world;

    private PlayerEntity player;

    private List<FloorEntity> floorList = new ArrayList<FloorEntity>();

    private List<ObstacleEntity> obstacleList = new ArrayList<ObstacleEntity>();

    private List<ObstacleEntity2> obstacle2List = new ArrayList<ObstacleEntity2>();

    public GameScreen(MainGame game) {
        super(game);
        stage = new Stage(new FitViewport(1024, 620));
        world = new World(new Vector2(0, -10), true);


        world.setContactListener(new ContactListener() {

            private boolean areCollided(Contact contact, Object userA, Object userB) {
                return (contact.getFixtureA().getUserData().equals(userA) && contact.getFixtureB().getUserData().equals(userB)) ||
                        (contact.getFixtureA().getUserData().equals(userB) && contact.getFixtureB().getUserData().equals(userA));
            }

            @Override
            public void beginContact(Contact contact) {
                if (areCollided(contact, "player", "floor")) {
                    player.setJumping(false);
                    if (Gdx.input.isTouched()) {
                        player.setMustJump(true);
                    }
                }

                if (areCollided(contact, "player", "obstacle")) {
                    player.setAlive(false);
                    System.out.println("GAME OVER");

                }

                if (areCollided(contact, "player", "obstacle2")) {
                    player.setAlive(false);
                    System.out.println("GAME OVER");
                }
            }

            @Override
            public void endContact(Contact contact) {

            }

            @Override
            public void preSolve(Contact contact, Manifold oldManifold) {

            }

            @Override
            public void postSolve(Contact contact, ContactImpulse impulse) {

            }
        });
    }

    @Override
    public void show() {
        Texture playerTexture = game.getManager().get("player.png");
        Texture floorTexture = game.getManager().get("floor.png");
        Texture overfloorTexture = game.getManager().get("overfloor.png");
        Texture overfloor2Texture = game.getManager().get("overfloor2.png");
        Texture obstacleTexture = game.getManager().get("obstacle.png");
        Texture obstacle2Texture = game.getManager().get("obstacle2.png");


        player = new PlayerEntity(world, playerTexture, new Vector2(1, 2));


        for (FloorEntity floor : floorList) {

            stage.addActor(floor);
        }
        for (ObstacleEntity obstacle : obstacleList) {

            stage.addActor(obstacle);


            stage.addActor(player);
        }
        for (ObstacleEntity2 obstacle2 : obstacle2List) {
            stage.addActor(obstacle2);
        }

    }


    public void update(float deltaTime) {
        Texture playerTexture = game.getManager().get("player.png");
        Texture floorTexture = game.getManager().get("floor.png");
        Texture overfloorTexture = game.getManager().get("overfloor.png");
        Texture overfloor2Texture = game.getManager().get("overfloor2.png");
        Texture obstacleTexture = game.getManager().get("obstacle.png");
        Texture obstacle2Texture = game.getManager().get("obstacle2.png");

        float timer = 0;
        float spawnTime = 4f;
    private void spawnEntity();
    {
        //Increment timer by the duration since the previous frame
        float timer += Gdx.graphics.getRawDeltaTime();
        //Compare to spawntime
        if (timer >= (float) spawnTime)
        {
            //Spawn your object
            floorList.add(new FloorEntity(world, floorTexture, overfloorTexture,overfloor2Texture, 0, 1000, 1));
            floorList.add(new FloorEntity(world, floorTexture, overfloorTexture,overfloor2Texture ,8, 10 ,5));
            floorList.add(new FloorEntity(world, floorTexture, overfloorTexture,overfloor2Texture ,10, 10 ,8));
            floorList.add(new FloorEntity(world, floorTexture, overfloorTexture,overfloor2Texture ,34 , 3 ,5));
            floorList.add(new FloorEntity(world, floorTexture, overfloorTexture,overfloor2Texture ,19 , 8 ,4));
            floorList.add(new FloorEntity(world, floorTexture, overfloorTexture,overfloor2Texture ,24 , 8 ,1.5f));
            floorList.add(new FloorEntity(world, floorTexture, overfloorTexture,overfloor2Texture ,27 , 5 , 2));
            obstacleList.add(new ObstacleEntity(world, floorTexture, overfloorTexture, overfloor2Texture ,25, 10 ,20));
            //But you will probably want to spawn something on the right, just outside of your screen view.

            //This is the right side of your vp in the world. Depending how you draw you can add some more to it.
            float spawnX = camera.position.x + camera.viewportWidth / 2;
            //Then use this to spawn your object, since you hardcoded stuff I have no idea where to put it.

            //Now reset timer
            timer-= spawnTime;

            //And perhaps randomize the spawnTime? (between 2 and 4 seconds)
            Random random;
            spawnTime = random.nextFloat() * 2 + 2;
        }
    }






    @Override
    public void render(float delta) {
        Gdx.gl20.glClearColor(0.5f, 0.6f, 1, 3f);
        Gdx.gl20.glClear(GL20.GL_COLOR_BUFFER_BIT);



        stage.act();
        world.step(delta, 6 ,2);
        stage.draw();
    }



    @Override
    public void dispose() {
        stage.dispose();
        world.dispose();
    }
}

package com.circlecrashavoider；
导入com.badlogic.gdx.gdx；
导入com.badlogic.gdx.graphics.GL20；
导入com.badlogic.gdx.graphics.Texture；
导入com.badlogic.gdx.math.Vector2；
导入com.badlogic.gdx.physics.box2d.Contact；
导入com.badlogic.gdx.physics.box2d.contactpulse；
导入com.badlogic.gdx.physics.box2d.ContactListener；
导入com.badlogic.gdx.physics.box2d.Manifold；
导入com.badlogic.gdx.physics.box2d.World；
导入com.badlogic.gdx.scenes.scene2d.Stage；
导入com.badlogic.gdx.utils.viewport.FitViewport；
导入com.circlecrashavoider.entities.FloorEntity；
导入com.circlecrashavoider.entities.ObstacleEntity；
导入com.circlecrashavoider.entities.ObstacleEntity2；
导入com.circlecrashavoider.entities.PlayerEntity；
导入java.util.ArrayList；
导入java.util.List；
导入java.util.Objects；
导入java.util.Random；
/**
*由Felipe于2016年2月22日创建。
*/
公共类GameScreen扩展BaseScreen{
私人舞台；
私人世界；
私人游戏者；
private List floorList=new ArrayList（）；
private List obstacleList=new ArrayList（）；
private List obstacle2List=new ArrayList（）；
公共游戏屏幕（主游戏）{
超级（游戏）；
阶段=新阶段（新阶段（1024620））；
世界=新世界（新矢量2（0，-10），真）；
setContactListener（新的ContactListener（）{
私有布尔值冲突（联系人、对象userA、对象userB）{
返回（contact.getFixtureA（）.getUserData（）.equals（userA）和&contact.getFixtureB（）.getUserData（）.equals（userB））||
（contact.getFixtureA（）.getUserData（）.equals（userB）和&contact.getFixtureB（）.getUserData（）.equals（userA））；
}
@凌驾
public void beginContact（联系人）{
如果（发生碰撞（联系“玩家”、“地板”））{
运动员.起跳（假）；
if（Gdx.input.isTouched（））{
player.setMustJump（true）；
}
}
如果（发生碰撞（联系“玩家”、“障碍物”））{
player.setAlive（false）；
System.out.println（“游戏结束”）；
}
如果（发生碰撞（联系“玩家”、“障碍物”））{
player.setAlive（false）；
System.out.println（“游戏结束”）；
}
}
@凌驾
公共无效endContact（联系人）{
}
@凌驾
公共无效预解（触点触点、歧管、歧管）{
}
@凌驾
公共无效后处理（触点接触、触点脉冲）{
}
});
}
@凌驾
公开展览（{
纹理playerTexture=game.getManager（）.get（“player.png”）；
纹理floorTexture=game.getManager（）.get（“floor.png”）；
纹理overfloorTexture=game.getManager（）.get（“overfloor.png”）；
纹理overfloor2Texture=game.getManager（）.get（“overfloor2.png”）；
纹理obstacleTexture=game.getManager（）.get（“障碍物.png”）；
纹理obstacle2Texture=game.getManager（）.get（“obstacle2.png”）；
玩家=新玩家属性（世界，玩家文本，新向量2（1，2））；
适用于（楼层性楼层：楼层列表）{
舞台演员（现场）；
}
for（障碍：障碍列表）{
阶段。添加者（障碍）；
舞台演员（演员）；
}
for（ObstacleEntity2 obstacle2:obstacle2List）{
舞台附加演员（障碍2）；
}
}
公共无效更新（浮动增量时间）{
纹理playerTexture=game.getManager（）.get（“player.png”）；
纹理floorTexture=game.getManager（）.get（“floor.png”）；
纹理overfloorTexture=game.getManager（）.get（“overfloor.png”）；
纹理overfloor2Texture=game.getManager（）.get（“overfloor2.png”）；
纹理obstacleTexture=game.getManager（）.get（“障碍物.png”）；
纹理obstacle2Texture=game.getManager（）.get（“obstacle2.png”）；
浮动计时器=0；
浮动时间=4f；
私有实体（）；
{
//从上一帧开始按持续时间递增计时器
float timer+=Gdx.graphics.getRawDeltaTime（）；
//与时间相比
如果（计时器>=（浮动）时间）
{
//生成你的对象
floorList.add（新的FloorRenty（世界，floorTexture，overfloorTexture，overfloor2Texture，0，1000，1））；
floorList.add（新的FloorEntity（world，floorTexture，overfloorTexture，overfloor2Texture，8,10,5））；
floorList.add（新的FloorRenty（世界，floorTexture，overfloorTexture，overfloor2Texture，10，10，8））；
floorList.add（新的FloorEntity（world，floorTexture，overfloorTexture，overfloor2Texture，34,3,5））；
floorList.add（新的FloorRenty（世界，floorTexture，overfloorTexture，overfloor2Texture，19,8,4））；
floorList.add（新地板属性（world、floorTexture、overfloorTexture、overfloor2Texture、24、8、1.5f））；
floorList.add（新的FloorEntity（world，floorTexture，overfloorTexture，overfloor2Texture，27,5,2））；
添加（新的障碍物属性（world、floorTexture、overfloorTexture、overfloor2Texture、25、10、20））；
//但是你可能想在右边产生一些东西，就在你的屏幕视图之外。
//这是你的副总裁在世界上的右边。根据你画的方式，你可以在上面添加更多。
float spawnX=camera.position.x+camera.viewportWidth/2；
public void update(float deltaTime) {
    spawnEntity();
}

Random random = new Random();
// ...
spawnTime = random.nextFloat() * 2f + 2f;

spawnTime = MathUtils.random(2f, 4f);

import com.badlogic.gdx.math.MathUtils;

// ... define your class ...

private float spawnTime = 4f;
private float timer = 0;

// ...


public void update(float deltaTime) {
    // Increment timer by the duration since the previous frame
    timer += deltaTime;

    if (timer >= spawnTime) {
        this.spawnEntity();

        // the next spawn time will be triggered between 2 and 4 seconds :
        spawnTime = MathUtils.random(2f, 4f); 
        timer = 0;
    }
}



private void spawnEntity() {
    Texture floorTexture = game.getManager().get("floor.png");
    Texture overfloorTexture = game.getManager().get("overfloor.png");
    Texture overfloor2Texture = game.getManager().get("overfloor2.png");

    //Spawn your object
    floorList.add(new FloorEntity(world, floorTexture, overfloorTexture,overfloor2Texture, 0, 1000, 1));
    floorList.add(new FloorEntity(world, floorTexture, overfloorTexture,overfloor2Texture, 8, 10, 5));
    floorList.add(new FloorEntity(world, floorTexture, overfloorTexture,overfloor2Texture, 10, 10, 8));
    floorList.add(new FloorEntity(world, floorTexture, overfloorTexture,overfloor2Texture, 34, 3, 5));
    floorList.add(new FloorEntity(world, floorTexture, overfloorTexture,overfloor2Texture, 19, 8, 4));
    floorList.add(new FloorEntity(world, floorTexture, overfloorTexture,overfloor2Texture, 24, 8, 1.5f));
    floorList.add(new FloorEntity(world, floorTexture, overfloorTexture,overfloor2Texture, 27, 5, 2));
    obstacleList.add(new ObstacleEntity(world, floorTexture, overfloorTexture, overfloor2Texture, 25, 10 ,20));
}