Examples with BodyDef com.badlogic.gdx.physics.box2d.BodyDef used on opensource projects

Example 16 with BodyDef

use of com.badlogic.gdx.physics.box2d.BodyDef in project libgdx by libgdx.

the class Box2DCharacterControllerTest method createPlayer.

private Body createPlayer() {
    BodyDef def = new BodyDef();
    def.type = BodyType.DynamicBody;
    Body box = world.createBody(def);
    PolygonShape poly = new PolygonShape();
    poly.setAsBox(0.45f, 1.4f);
    playerPhysicsFixture = box.createFixture(poly, 1);
    poly.dispose();
    CircleShape circle = new CircleShape();
    circle.setRadius(0.45f);
    circle.setPosition(new Vector2(0, -1.4f));
    playerSensorFixture = box.createFixture(circle, 0);
    circle.dispose();
    box.setBullet(true);
    return box;
}

Example 17 with BodyDef

use of com.badlogic.gdx.physics.box2d.BodyDef in project libgdx by libgdx.

the class Box2DTest method createBoxes.

private void createBoxes() {
    // next we create 50 boxes at random locations above the ground
    // body. First we create a nice polygon representing a box 2 meters
    // wide and high.
    PolygonShape boxPoly = new PolygonShape();
    boxPoly.setAsBox(1, 1);
    // body. Note that we reuse the polygon for each body fixture.
    for (int i = 0; i < 20; i++) {
        // Create the BodyDef, set a random position above the
        // ground and create a new body
        BodyDef boxBodyDef = new BodyDef();
        boxBodyDef.type = BodyType.DynamicBody;
        boxBodyDef.position.x = -24 + (float) (Math.random() * 48);
        boxBodyDef.position.y = 10 + (float) (Math.random() * 100);
        Body boxBody = world.createBody(boxBodyDef);
        boxBody.createFixture(boxPoly, 1);
        // add the box to our list of boxes
        boxes.add(boxBody);
    }
    // we are done, all that's left is disposing the boxPoly
    boxPoly.dispose();
}

Example 18 with BodyDef

use of com.badlogic.gdx.physics.box2d.BodyDef in project libgdx by libgdx.

the class ApplyForce method createWorld.

@Override
protected void createWorld(World world) {
    world.setGravity(new Vector2(0, 0));
    float k_restitution = 0.4f;
    Body ground;
    {
        BodyDef bd = new BodyDef();
        bd.position.set(0, 20);
        ground = world.createBody(bd);
        EdgeShape shape = new EdgeShape();
        FixtureDef sd = new FixtureDef();
        sd.shape = shape;
        sd.density = 0;
        sd.restitution = k_restitution;
        shape.set(new Vector2(-20, -20), new Vector2(-20, 20));
        ground.createFixture(sd);
        shape.set(new Vector2(20, -20), new Vector2(20, 20));
        ground.createFixture(sd);
        shape.set(new Vector2(-20, 20), new Vector2(20, 20));
        ground.createFixture(sd);
        shape.set(new Vector2(-20, -20), new Vector2(20, -20));
        ground.createFixture(sd);
        shape.dispose();
    }
    {
        Transform xf1 = new Transform(new Vector2(), 0.3524f * (float) Math.PI);
        xf1.setPosition(xf1.mul(new Vector2(1, 0)));
        Vector2[] vertices = new Vector2[3];
        vertices[0] = xf1.mul(new Vector2(-1, 0));
        vertices[1] = xf1.mul(new Vector2(1, 0));
        vertices[2] = xf1.mul(new Vector2(0, 0.5f));
        PolygonShape poly1 = new PolygonShape();
        poly1.set(vertices);
        FixtureDef sd1 = new FixtureDef();
        sd1.shape = poly1;
        sd1.density = 4.0f;
        Transform xf2 = new Transform(new Vector2(), -0.3524f * (float) Math.PI);
        xf2.setPosition(xf2.mul(new Vector2(-1, 0)));
        vertices[0] = xf2.mul(new Vector2(-1, 0));
        vertices[1] = xf2.mul(new Vector2(1, 0));
        vertices[2] = xf2.mul(new Vector2(0, 0.5f));
        PolygonShape poly2 = new PolygonShape();
        poly2.set(vertices);
        FixtureDef sd2 = new FixtureDef();
        sd2.shape = poly2;
        sd2.density = 2.0f;
        BodyDef bd = new BodyDef();
        bd.type = BodyType.DynamicBody;
        bd.angularDamping = 5.0f;
        bd.linearDamping = 0.1f;
        bd.position.set(0, 2);
        bd.angle = (float) Math.PI;
        bd.allowSleep = false;
        m_body = world.createBody(bd);
        m_body.createFixture(sd1);
        m_body.createFixture(sd2);
        poly1.dispose();
        poly2.dispose();
    }
    {
        PolygonShape shape = new PolygonShape();
        shape.setAsBox(0.5f, 0.5f);
        FixtureDef fd = new FixtureDef();
        fd.shape = shape;
        fd.density = 1.0f;
        fd.friction = 0.3f;
        for (int i = 0; i < 10; i++) {
            BodyDef bd = new BodyDef();
            bd.type = BodyType.DynamicBody;
            bd.position.set(0, 5 + 1.54f * i);
            Body body = world.createBody(bd);
            body.createFixture(fd);
            float gravity = 10.0f;
            float I = body.getInertia();
            float mass = body.getMass();
            float radius = (float) Math.sqrt(2 * I / mass);
            FrictionJointDef jd = new FrictionJointDef();
            jd.localAnchorA.set(0, 0);
            jd.localAnchorB.set(0, 0);
            jd.bodyA = ground;
            jd.bodyB = body;
            jd.collideConnected = true;
            jd.maxForce = mass * gravity;
            jd.maxTorque = mass * radius * gravity;
            world.createJoint(jd);
        }
        shape.dispose();
    }
}

Example 19 with BodyDef

use of com.badlogic.gdx.physics.box2d.BodyDef in project libgdx-inGameConsole by StrongJoshua.

the class Box2DTest method create.

@Override
public void create() {
    float w = Gdx.graphics.getWidth();
    w *= 2;
    float h = Gdx.graphics.getHeight();
    h *= 2;
    ratio = h / w;
    Gdx.app.getGraphics().setWindowedMode((int) w, (int) h);
    mX = (float) WIDTH / w;
    mY = (float) HEIGHT / h;
    Box2D.init();
    world = new World(new Vector2(0, -9.81f), true);
    batch = new SpriteBatch();
    sprites = new Sprite[250];
    bodies = new Body[sprites.length];
    float k, j;
    for (int i = 0; i < sprites.length; i++) {
        if (i < 50) {
            k = 0;
            j = 1;
        } else if (i < 100) {
            k = 50 * sprites[i - 1].getWidth() + sprites[i - 1].getWidth() / 2;
            j = 2;
        } else if (i < 150) {
            k = 100 * sprites[i - 1].getWidth() + sprites[i - 1].getWidth() / 2;
            j = 3;
        } else if (i < 200) {
            k = 150 * sprites[i - 1].getWidth() + sprites[i - 1].getWidth() / 2;
            j = 4;
        } else {
            k = 200 * sprites[i - 1].getWidth() + sprites[i - 1].getWidth() / 2;
            j = 5;
        }
        sprites[i] = new Sprite(new Texture(Gdx.files.classpath("tests/badlogic.jpg")));
        sprites[i].setSize(2, 2);
        sprites[i].setOriginCenter();
        BodyDef bdef = new BodyDef();
        bdef.type = BodyDef.BodyType.DynamicBody;
        bdef.position.set(i * sprites[i].getWidth() + sprites[i].getWidth() / 2 - k, 15 * j);
        bodies[i] = world.createBody(bdef);
        PolygonShape poly = new PolygonShape();
        poly.setAsBox(sprites[i].getWidth() / 2, sprites[i].getHeight() / 2);
        FixtureDef fdef = new FixtureDef();
        fdef.shape = poly;
        fdef.restitution = .2f;
        fdef.density = 1f;
        bodies[i].createFixture(fdef);
        poly.dispose();
    }
    BodyDef bdef = new BodyDef();
    bdef.type = BodyDef.BodyType.StaticBody;
    bdef.position.set(WIDTH / 2, -5);
    Body b = world.createBody(bdef);
    PolygonShape poly = new PolygonShape();
    poly.setAsBox(50, 5);
    b.createFixture(poly, 0);
    bdef = new BodyDef();
    bdef.type = BodyDef.BodyType.StaticBody;
    bdef.position.set(-5, HEIGHT / 2);
    b = world.createBody(bdef);
    poly = new PolygonShape();
    poly.setAsBox(5, 50);
    b.createFixture(poly, 0);
    bdef = new BodyDef();
    bdef.type = BodyDef.BodyType.StaticBody;
    bdef.position.set(WIDTH + 5, (HEIGHT * ratio) / 2);
    b = world.createBody(bdef);
    poly = new PolygonShape();
    poly.setAsBox(5, 50);
    b.createFixture(poly, 0);
    bdef = new BodyDef();
    bdef.type = BodyDef.BodyType.StaticBody;
    bdef.position.set(WIDTH / 2, HEIGHT * ratio + 5);
    b = world.createBody(bdef);
    poly = new PolygonShape();
    poly.setAsBox(50, 5);
    b.createFixture(poly, 0);
    poly.dispose();
    c = new OrthographicCamera(WIDTH, HEIGHT * ratio);
    c.position.set(c.viewportWidth / 2, c.viewportHeight / 2, 0);
    c.update();
    batch.setProjectionMatrix(c.combined);
    debugRenderer = new Box2DDebugRenderer();
    console = new GUIConsole(false);
    cExec = new MyCommandExecutor();
    console.setCommandExecutor(cExec);
    // set to 'Z' to demonstrate that it works with binds other than the
    // default
    console.setDisplayKeyID(Input.Keys.Z);
    console.setVisible(true);
    // test multiple resets with nested multiplexers
    InputMultiplexer im1 = new InputMultiplexer();
    im1.addProcessor(new Stage());
    im1.addProcessor(new Stage());
    InputMultiplexer im2 = new InputMultiplexer();
    im2.addProcessor(new Stage());
    im2.addProcessor(new Stage());
    im1.addProcessor(im2);
    Gdx.input.setInputProcessor(im1);
    console.setMaxEntries(16);
    console.resetInputProcessing();
    // console already present, logged to consoles
    console.resetInputProcessing();
    console.setSizePercent(100, 33);
    console.setPositionPercent(0, 67);
}