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屏幕觸摸位置不適合相機位置。libGDX屏幕觸摸位置縮放到相機位置
粉紅色的圓點就是鼠標點擊（沒有將所收到的touchX通過縮放和換句話說 - catXtouch=Gdx.input.getX() 當我使用縮放問題也一致，但在一個較小的比例 「甜蜜點」是當定標爲367，但它也不能準確
這裏是一個關注的問題的相關代碼：
int scaling
//update is called on create
public void update(){
cam = new OrthographicCamera();
cam.setToOrtho(false,480,800);
...
...
scaling = (Gdx.graphics.getWidth()/480);
//called on render
if (Gdx.input.isTouched()) {
Vector3 touchPos = new Vector3();
touchPos.set(Gdx.input.getX(), Gdx.input.getY(), 0);
cam.unproject(touchPos);
}
@Override
public boolean touchDown(int screenX, int screenY, int pointer, int button) {
catXtouch=Gdx.input.getX()/scaling;
return true;
全碼：
package com.mygdx.game;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.InputProcessor;
import com.badlogic.gdx.audio.Sound;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.Animation;
import com.badlogic.gdx.graphics.g2d.BitmapFont;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.g2d.TextureAtlas;
import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
import com.badlogic.gdx.math.MathUtils;
import com.badlogic.gdx.math.Rectangle;
import com.badlogic.gdx.math.Vector3;
import com.badlogic.gdx.utils.viewport.Viewport;
public class StageOneClass implements InputProcessor {
private SpriteBatch batch;
private Texture building1;
private Texture building2;
private Texture side1;
private Texture side2;
private Texture side3;
private Texture side4;
private Texture cat;
private Texture obs1;
private OrthographicCamera cam;
private long StartCountTime;
private long CorrectCountTime;
private float SideY;
private float BuildY;
private int obsX;
private float obsY;
private TextureAtlas catatlas;
private TextureAtlas birdatlas;
private Animation catanime;
private Animation birdanime;
private float timeIsZero =0;
private int catXtouch;
private int scaling;
private int scrennwidth;
private Rectangle CatRect;
private Rectangle ObsRect;
private Sound catsound;
private ShapeRenderer sr;
private BitmapFont font;
private int score;
private int catY;
private int Direction;
private float BooleanResaultX;
private Viewport Viewport;
public StageOneClass(){
}
public void update(){
cam = new OrthographicCamera();
cam.setToOrtho(false,480,800);
//Viewport = new FillViewport(480,800,cam);
catY=20;
sr = new ShapeRenderer();
batch = new SpriteBatch();
building1 = new Texture(Gdx.files.internal("building1.png"));
building2 = new Texture(Gdx.files.internal("building2.png"));
side1 = new Texture(Gdx.files.internal("side1.png"));
side2 = new Texture(Gdx.files.internal("side2.png"));
side3 = new Texture(Gdx.files.internal("side1.png"));
side4 = new Texture(Gdx.files.internal("side2.png"));
cat = new Texture(Gdx.files.internal("cat1.png"));
StartCountTime = System.currentTimeMillis();
obs1 = new Texture(Gdx.files.internal("obsone.png"));
obsY=800;
catatlas =new TextureAtlas(Gdx.files.internal("catatlas.pack"));
catanime = new Animation(1/10f,catatlas.getRegions());
birdatlas= new TextureAtlas(Gdx.files.internal("birdatlas.pack"));
birdanime= new Animation(1/10f,birdatlas.getRegions());
Gdx.input.setInputProcessor(this);
scaling = (Gdx.graphics.getWidth()/480);
catsound = Gdx.audio.newSound(Gdx.files.internal("catsound.mp3"));
font = new BitmapFont();
font.setColor(Color.BLACK);
font.scale(1);
}
public void MovingBackGround() {
CorrectCountTime = System.currentTimeMillis();
if ((CorrectCountTime - StartCountTime) > 1000) {
BuildY -= 4;
SideY -= 1;
obsY -=3;
if (Direction==0){
obsX+=2;
}
if(Direction==1){
obsX-=2;
}
}
if (obsX<50){
Direction=0;
}
if(obsX>430-150) {
Direction =1;
}
if (BuildY < -800) {
BuildY = 0;
}
if (SideY < -800) {
SideY = 0;
}if(obsY<= 0){
obsY=800;
}
}
public void render() {
Gdx.gl.glClearColor(1, 0, 0, 1);
Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
if (obsY == 800) {
obsX = MathUtils.random(40, 430 - 150);
}
ObsRect = new Rectangle(obsX, obsY, 100, 100);
CatRect = new Rectangle(catXtouch+40, 20+40, 70, 70);
if (catXtouch < 25) {
catXtouch = 25;
}
if (catXtouch > 430-150) {
catXtouch = 430-150;
}
MovingBackGround();
timeIsZero += Gdx.graphics.getDeltaTime();
batch.setProjectionMatrix(cam.combined);
batch.begin();
batch.draw(building1, 50, BuildY, 380, 800);
batch.draw(building2, 50, BuildY + 800, 380, 800);
batch.draw(side1, 0, SideY, 50, 800);
batch.draw(side2, 0, SideY + 800, 50, 800);
batch.draw(side3, 430, SideY + 800, 50, 800);
batch.draw(side4, 430, SideY, 50, 800);
font.draw(batch, " SCORE : " + score, 50, 770);
batch.draw(catanime.getKeyFrame(timeIsZero, true), catXtouch, catY, 150, 150);
if ((CorrectCountTime - StartCountTime) > 1000) {
batch.draw(birdanime.getKeyFrame(timeIsZero, true), obsX, obsY, 100, 100);
}
batch.end();
if (ObsRect.overlaps(CatRect)) {
//catsound.play();
score++;
catsound.play();
obsY = 850;
}
sr.setProjectionMatrix(cam.combined);
sr.begin(ShapeRenderer.ShapeType.Line);
sr.setColor(new Color(0, 0, 1, 0));
sr.rect(obsX, obsY, 100, 100);
sr.rect(catXtouch+40,catY+40,70,70);
sr.end();
if (Gdx.input.isTouched()) {
Vector3 touchPos = new Vector3();
touchPos.set(Gdx.input.getX(), Gdx.input.getY(), 0);
cam.unproject(touchPos);
}
}
public void dispose(){
building1.dispose();
building2.dispose();
side1.dispose();
side2.dispose();
side3.dispose();
side4.dispose();
cat.dispose();
catatlas.dispose();
catsound.dispose();
}
@Override
public boolean touchDown(int screenX, int screenY, int pointer, int button) {
catXtouch=Gdx.input.getX()/scaling;//(screenX/scaling)-150/2;
return true;
}
@Override
public boolean keyDown(int keycode) {
return false;
}
@Override
public boolean keyUp(int keycode) {
return false;
}
@Override
public boolean keyTyped(char character) {
return false;
}
@Override
public boolean touchUp(int screenX, int screenY, int pointer, int button) {
return false;
}
@Override
public boolean touchDragged(int screenX, int screenY, int pointer) {
return false;
}
@Override
public boolean mouseMoved(int screenX, int screenY) {
return false;
}
@Override
public boolean scrolled(int amount) {
return false;
}
}