Example usage for com.badlogic.gdx.physics.box2d Body getLocalCenter

Introduction

In this page you can find the example usage for com.badlogic.gdx.physics.box2d Body getLocalCenter.

Prototype

public Vector2 getLocalCenter() 

Source Link

Usage

From source file:com.agateau.pixelwheels.bonus.Mine.java

License:Open Source License

private void initJoint() {
    Body vehicleBody = mOwner.getVehicle().getBody();
    mJointDef.bodyA = mOwner.getVehicle().getBody();
    mJointDef.bodyB = mBody;//from  w w w.jav a2 s .  c o m
    mJointDef.localAnchorA.set(vehicleBody.getLocalCenter().add(-mOwner.getVehicle().getWidth(), 0));
    mJointDef.localAnchorB.set(mBody.getLocalCenter());
    mJoint = mGameWorld.getBox2DWorld().createJoint(mJointDef);
}

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From source file:com.agateau.pixelwheels.bonus.Missile.java

License:Open Source License

private void initJoint() {
    Vehicle vehicle = mShooter.getVehicle();
    Body vehicleBody = vehicle.getBody();
    mJointDef.bodyA = vehicleBody;//from   w w  w.  j  av a 2s .  com
    mJointDef.bodyB = mBody;
    mJointDef.localAnchorA.set(vehicleBody.getLocalCenter());
    mJointDef.localAnchorB.set(mBody.getLocalCenter());
    mJoint = mGameWorld.getBox2DWorld().createJoint(mJointDef);
}

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From source file:com.strategames.engine.gameobject.types.Balloon.java

License:Open Source License

@Override
protected void setupBody(Body body) {

    /**//from  w  ww . jav a2  s .  c  o m
     * TODO do we really need a separate loader for each object? Replace with static?
     */
    BodyEditorLoader loader = new BodyEditorLoader(Gdx.files.internal("fixtures/balloon.json"));
    loader.setupVertices("Balloon", WIDTH);

    //Balloon body
    body.setAngularDamping(1f);
    body.setLinearDamping(1f);

    FixtureDef fixtureBalloon = new FixtureDef();
    fixtureBalloon.density = 0.1786f; // Helium density 0.1786 g/l == 0.1786 kg/m3
    fixtureBalloon.friction = 0.6f;
    fixtureBalloon.restitution = 0.4f; // Make it bounce a little bit
    loader.attachFixture(body, "Balloon", 0, fixtureBalloon);

    this.upwardLiftPosition = body.getLocalCenter();
    this.upwardLiftPosition.y += 0.1f;

    this.upwardLift = -body.getMass() * this.liftFactor;
}

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From source file:Helper.WorldUtils.java

public static Body createPinguin(World world) {
    BodyDef bodyDef = new BodyDef();
    bodyDef.type = BodyDef.BodyType.DynamicBody;
    bodyDef.position.set(new Vector2(Constants.RUNNER_X, Constants.RUNNER_Y));
    Body body = world.createBody(bodyDef);
    body.setGravityScale(Constants.RUNNER_GRAVITY_SCALE);
    body.setFixedRotation(false);//from w  w  w  . j  a v  a  2 s.  c  om
    PolygonShape box = new PolygonShape();
    box.setAsBox(Constants.RUNNER_WIDTH / 2, Constants.RUNNER_HEIGHT / 2, body.getLocalCenter(), 0);
    FixtureDef fixtureDef = new FixtureDef();
    fixtureDef.shape = box;
    fixtureDef.density = 0.0f;
    fixtureDef.friction = BuffsInfo.getFrictionBuff().getPower();
    fixtureDef.restitution = 0.35f;
    body.createFixture(fixtureDef);
    //body.resetMassData();
    body.getFixtureList().get(0).setUserData("PINGUIN");
    box.dispose();
    return body;
}

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From source file:org.matheusdev.ror.view.EntityView.java

License:Open Source License

public void draw(SpriteBatch batch, Entity e, Sprite sprite, float width, float xoffset, float yoffset) {
    Body body = e.getBody();
    // Super-Duper important Box2D-Magic code:
    // This should be / is in almost every Box2D project
    // It takes the Body and the associated sprite and
    // renders the sprite properly, using the body's
    // position, rotation and origin.
    final float worldToSprite = sprite.getWidth() / width;
    final float spriteToWorld = width / sprite.getWidth();
    // Get body position:
    final float bodyX = e.getX();
    final float bodyY = e.getY();
    // Get body center:
    final Vector2 center = body.getLocalCenter();
    final Vector2 massCenter = body.getMassData().center;
    center.sub(massCenter).add(xoffset, yoffset);
    // Compute sprite-space center:
    final Vector2 spriteCenter = new Vector2(sprite.getWidth() / 2, sprite.getHeight() / 2)
            .sub((center.cpy().scl(worldToSprite)));
    // Upload to sprite:
    sprite.setScale(1f * spriteToWorld);
    sprite.setRotation(e.getRotation() * MathUtils.radiansToDegrees);
    sprite.setOrigin(spriteCenter.x, spriteCenter.y);
    sprite.setPosition(bodyX - spriteCenter.x, bodyY - spriteCenter.y);
    // Draw Sprite:
    sprite.draw(batch);//  w w  w .  j a  v a2s .  co m
}

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