libgdx intersection problem between rectangle and circle
- by Chris
My collision detection in libgdx is somehow buggy.
player.png is 20*80px and ball.png 25*25px.
Code:
@Override
public void create() {
// ...
batch = new SpriteBatch();
playerTex = new Texture(Gdx.files.internal("data/player.png"));
ballTex = new Texture(Gdx.files.internal("data/ball.png"));
player = new Rectangle();
player.width = 20;
player.height = 80;
player.x = Gdx.graphics.getWidth() - player.width - 10;
player.y = 300;
ball = new Circle();
ball.x = Gdx.graphics.getWidth() / 2;
ball.y = Gdx.graphics.getHeight() / 2;
ball.radius = ballTex.getWidth() / 2;
}
@Override
public void render() {
Gdx.gl.glClearColor(1, 1, 1, 1);
Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
camera.update();
// draw player, ball
batch.setProjectionMatrix(camera.combined);
batch.begin();
batch.draw(ballTex, ball.x, ball.y);
batch.draw(playerTex, player.x, player.y);
batch.end();
// update player position
if(Gdx.input.isKeyPressed(Keys.DOWN)) player.y -= 250 * Gdx.graphics.getDeltaTime();
if(Gdx.input.isKeyPressed(Keys.UP)) player.y += 250 * Gdx.graphics.getDeltaTime();
if(Gdx.input.isKeyPressed(Keys.LEFT)) player.x -= 250 * Gdx.graphics.getDeltaTime();
if(Gdx.input.isKeyPressed(Keys.RIGHT)) player.x += 250 * Gdx.graphics.getDeltaTime();
// don't let the player leave the field
if(player.y < 0) player.y = 0;
if(player.y > 600 - 80) player.y = 600 - 80;
// check collision
if (Intersector.overlaps(ball, player))
Gdx.app.log("overlaps", "yes");
}
