Example usage for com.badlogic.gdx.physics.box2d PolygonShape setRadius

Introduction

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

Prototype

@Override
    public void setRadius(float radius) 

Source Link

Usage

From source file:com.agateau.pixelwheels.utils.Box2DUtils.java

License:Open Source License

public static Body createStaticBodyForMapObject(World world, MapObject object) {
    final float u = Constants.UNIT_FOR_PIXEL;
    float rotation = object.getProperties().get("rotation", 0f, Float.class);

    BodyDef bodyDef = new BodyDef();
    bodyDef.type = BodyDef.BodyType.StaticBody;
    bodyDef.angle = -rotation * MathUtils.degreesToRadians;

    if (object instanceof RectangleMapObject) {
        Rectangle rect = ((RectangleMapObject) object).getRectangle();

        /*//w ww. j av a  2  s  . c om
          A          D
           x--------x
           |        |
           x--------x
          B          C
         */
        float[] vertices = new float[8];
        // A
        vertices[0] = 0;
        vertices[1] = 0;
        // B
        vertices[2] = 0;
        vertices[3] = -rect.getHeight();
        // C
        vertices[4] = rect.getWidth();
        vertices[5] = -rect.getHeight();
        // D
        vertices[6] = rect.getWidth();
        vertices[7] = 0;
        scaleVertices(vertices, u);

        bodyDef.position.set(u * rect.getX(), u * (rect.getY() + rect.getHeight()));
        Body body = world.createBody(bodyDef);

        PolygonShape shape = new PolygonShape();
        shape.set(vertices);

        body.createFixture(shape, 1);
        return body;
    } else if (object instanceof PolygonMapObject) {
        Polygon polygon = ((PolygonMapObject) object).getPolygon();
        float[] vertices = polygon.getVertices().clone();
        scaleVertices(vertices, u);

        bodyDef.position.set(polygon.getX() * u, polygon.getY() * u);
        Body body = world.createBody(bodyDef);

        PolygonShape shape = new PolygonShape();
        shape.set(vertices);

        body.createFixture(shape, 1);
        return body;
    } else if (object instanceof EllipseMapObject) {
        Ellipse ellipse = ((EllipseMapObject) object).getEllipse();
        float radius = ellipse.width * u / 2;
        float x = ellipse.x * u + radius;
        float y = ellipse.y * u + radius;

        bodyDef.position.set(x, y);
        Body body = world.createBody(bodyDef);

        CircleShape shape = new CircleShape();
        shape.setRadius(radius);

        body.createFixture(shape, 1);
        return body;
    }
    throw new RuntimeException("Unsupported MapObject type: " + object);
}

---

From source file:vault.clockwork.actors.PlanetActor.java

License:Open Source License

/**
 * Ctor.//  w w w .  j a  v a 2  s .c o m
 * @param id 
 */
public PlanetActor(int id) {
    super(id);

    PolygonShape shape = new PolygonShape();
    shape.setRadius(32.f * Physics.SCALE);

    BodyDef bodyDef = new BodyDef();
    bodyDef.type = BodyDef.BodyType.KinematicBody;

    bodyDef.position.set(1.f, 1.f);
    body = Game.physics.world.createBody(bodyDef);
    fixture = body.createFixture(shape, 2.f);
    fixture.setUserData(this);

    shape.dispose();

    // create the plank sprite
    sprPlanet = new Sprite(Game.assets.get("assets/planet.png", Texture.class));
    sprPlanet.setBounds(-42.f, -42.f, 150.f, 150.f);
    sprPlanet.setOriginCenter();
    sprPlanet.setRotation(0.f);
}

---