我一直在制作游戏，最近我遇到了让图像消失的问题。我的代码如下
package com.me.fixGame;
import java.util.Random;
import com.badlogic.gdx.ApplicationListener;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Input.Keys;
import com.badlogic.gdx.graphics.GL10;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.BitmapFont;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.math.Rectangle;
import com.badlogic.gdx.math.Vector2;
//import com.badlogic.gdx.scenes.scene2d.Stage;
import com.badlogic.gdx.scenes.scene2d.ui.Table;
import com.badlogic.gdx.utils.Scaling;
import com.sun.jmx.snmp.tasks.Task;
public class fixGame implements ApplicationListener {
SpriteBatch batch;
SpriteBatch spriteBatch;
Texture trash;
Texture paper;
SpriteBatch spritebatch;
Vector2 position;
Vector2 pas;
boolean collide;
boolean countMe=false;
Vector2 size;
Vector2 size2;
Vector2 pos;
Rectangle bounds;
Rectangle bounds2;
float delay = 1; // seconds
boolean counted= false;
int score = 3;
//Texture Gogreen;
String myScore;
Texture background;
CharSequence str = "Lives left: 3"; // = myScore;
CharSequence line = "Score: 0"; // = myScore;
String myLife;
int life=0;
BitmapFont font;
float x;
float y;
boolean collision = false;
@Override
public void create() {
//Gogreen = new Texture(Gdx.files.internal("data/gogreenNow.jpg"));
background = new Texture(Gdx.files.internal("data/trash.png"));
x= background.getWidth();
y=background.getHeight();
//float delaySeconds = 1;
spriteBatch = new SpriteBatch();
trash = new Texture(Gdx.files.internal("data/trash.png"));
paper = new Texture(Gdx.files.internal("data/paper1.jpg"));
position = new Vector2(100, 50);
pos = new Vector2(54, 14);
batch = new SpriteBatch();
BitmapFont font = new BitmapFont();
size2 = new Vector2(trash.getWidth() ,trash.getHeight() );
//size2.y = trash.getHeight();
//size2.x = trash.getWidth();
size = new Vector2(paper.getWidth() ,paper.getHeight());
bounds= new Rectangle(pos.x, pos.y, size.x, size.y);
bounds2= new Rectangle(position.x, position.y, size2.x, size2.y);
}
@Override
public void dispose() {
}
public void update(){
bounds.set(pos.x, pos.y, size.x, size.y);
bounds2.set(position.x, position.y, size2.x, size2.y);
position.x = position.x -2- Gdx.input.getAccelerometerX();
}
@Override
public void render() {
if(bounds.overlaps(bounds2)){
collision=true;
counted=true;
}else{
collision=false;
}
if(collision==true){
}
if(pos.y<640){
counted=false;
} else if(pos.y > 640 && collision==false && counted==false){
counted=true;
score= score-1;
myScore = "Lives left: " + score;
str = myScore;
}
if(bounds.overlaps(bounds2)){
countMe=true;
life= life+50;
myLife = "Score: " + life;
line = myLife;
}
if(position.x<0){
position.x= position.x+11;
}
if(position.x>425){
position.x= position.x-11;
}
update();
Gdx.gl.glClearColor(1, 1, 1, 1);
Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
pos.y=pos.y-12;
if(pos.y<0){
pos.y = 700;
Random randomGenerator = new Random();
pos.x = randomGenerator.nextInt(500);
}
BitmapFont font = new BitmapFont();
batch.begin();
batch.draw(background, 0, 0, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
batch.draw(paper, pos.x, pos.y);
batch.draw(trash, position.x, position.y);
font.setScale(3);
font.setColor(0.0f, 0.0f, 1.0f,1.0f);
font.draw(batch, str, 200,900);
font.draw(batch, line, 200, 700);
batch.end();
font.dispose();
}
@Override
public void resize(int width, int height) {
}
@Override
public void pause() {
}
@Override
public void resume() {
}
}
我想把我的图像称为纸张消失，我在这里实例化。
x= background.getWidth();
y=background.getHeight();
//float delaySeconds = 1;
spriteBatch = new SpriteBatch();
trash = new Texture(Gdx.files.internal("data/trash.png"));
paper = new Texture(Gdx.files.internal("data/paper1.jpg"));
position = new Vector2(100, 50);
pos = new Vector2(54, 14);
batch = new SpriteBatch();
BitmapFont font = new BitmapFont();
我希望它消失的地方如下：
如果（bounds.overlaps（bounds2））{
countMe=true;
life= life+50;
myLife = "Score: " + life;
line = myLife;
}
我想要做的是当两个对象重叠（边界和边界2）时，应该更改分数，并且其中一个对象（纸张）应该隐藏。如何隐藏图像？
答案 0 :(得分：0)
因为你已经将碰撞状态设置为变量，所以你需要在render（）方法中包装batch.draw（）方法。我已经测试了这段代码，但它确实有用。当您将纸张设置回顶部时，您还需要将碰撞设置为false，我猜您希望它完全隐藏，直到它重置为止。请注意我也做了一些小调整，因此更容易测试。如果仍有运行时错误，则与此更改无关。
@Override
public void render() {
if (bounds.overlaps(bounds2)) {
collision = true;
counted = true;
}
if (pos.y < 640) {
counted = false;
} else if (pos.y > 640 && collision == false && counted == false) {
counted = true;
score = score - 1;
myScore = "Lives left: " + score;
str = myScore;
}
if (bounds.overlaps(bounds2)) {
countMe = true;
life = life + 50;
myLife = "Score: " + life;
line = myLife;
}
if (position.x < 0) {
position.x = position.x + 11;
}
if (position.x > 425) {
position.x = position.x - 11;
}
update();
Gdx.gl.glClearColor(1, 1, 1, 1);
Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
pos.y = pos.y - 2;
if (pos.y < 0) {
pos.y = 700;
Random randomGenerator = new Random();
pos.x = 250;
collision = false;
}
BitmapFont font = new BitmapFont();
batch.begin();
batch.draw(background, 0, 0, Gdx.graphics.getWidth(),
Gdx.graphics.getHeight());
if (!collision) {
batch.draw(paper, pos.x, pos.y);
}
batch.draw(trash, position.x, position.y);
font.setScale(1.5f);
font.setColor(0.0f, 0.0f, 1.0f, 1.0f);
font.draw(batch, str, 20, 50);
font.draw(batch, line, 20, 100);
batch.end();
font.dispose();
}