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

Example 1 with PrismaticJointDef

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

the class CollisionFiltering method createWorld.

@Override
protected void createWorld(World world) {
    {
        EdgeShape shape = new EdgeShape();
        shape.set(new Vector2(-40.0f, 0), new Vector2(40, 0));
        FixtureDef fd = new FixtureDef();
        fd.shape = shape;
        fd.friction = 0.3f;
        BodyDef bd = new BodyDef();
        Body ground = world.createBody(bd);
        ground.createFixture(fd);
        shape.dispose();
    }
    Vector2[] vertices = new Vector2[3];
    vertices[0] = new Vector2(-1, 0);
    vertices[1] = new Vector2(1, 0);
    vertices[2] = new Vector2(0, 2);
    PolygonShape polygon = new PolygonShape();
    polygon.set(vertices);
    FixtureDef triangleShapeDef = new FixtureDef();
    triangleShapeDef.shape = polygon;
    triangleShapeDef.density = 1.0f;
    triangleShapeDef.filter.groupIndex = k_smallGroup;
    triangleShapeDef.filter.categoryBits = k_triangleCategory;
    triangleShapeDef.filter.maskBits = k_triangleMask;
    BodyDef triangleBodyDef = new BodyDef();
    triangleBodyDef.type = BodyType.DynamicBody;
    triangleBodyDef.position.set(-5, 2);
    Body body1 = world.createBody(triangleBodyDef);
    body1.createFixture(triangleShapeDef);
    vertices[0].scl(2);
    vertices[1].scl(2);
    vertices[2].scl(2);
    polygon.set(vertices);
    triangleShapeDef.filter.groupIndex = k_largeGroup;
    triangleBodyDef.position.set(-5, 6);
    triangleBodyDef.fixedRotation = true;
    Body body2 = world.createBody(triangleBodyDef);
    body2.createFixture(triangleShapeDef);
    {
        BodyDef bd = new BodyDef();
        bd.type = BodyType.DynamicBody;
        bd.position.set(-5, 10);
        Body body = world.createBody(bd);
        PolygonShape p = new PolygonShape();
        p.setAsBox(0.5f, 1.0f);
        body.createFixture(p, 1);
        PrismaticJointDef jd = new PrismaticJointDef();
        jd.bodyA = body2;
        jd.bodyB = body;
        jd.enableLimit = true;
        jd.localAnchorA.set(0, 4);
        jd.localAnchorB.set(0, 0);
        jd.localAxisA.set(0, 1);
        jd.lowerTranslation = -1;
        jd.upperTranslation = 1;
        world.createJoint(jd);
        p.dispose();
    }
    polygon.setAsBox(1, 0.5f);
    FixtureDef boxShapeDef = new FixtureDef();
    boxShapeDef.shape = polygon;
    boxShapeDef.density = 1;
    boxShapeDef.restitution = 0.1f;
    boxShapeDef.filter.groupIndex = k_smallGroup;
    boxShapeDef.filter.categoryBits = k_boxCategory;
    boxShapeDef.filter.maskBits = k_boxMask;
    BodyDef boxBodyDef = new BodyDef();
    boxBodyDef.type = BodyType.DynamicBody;
    boxBodyDef.position.set(0, 2);
    Body body3 = world.createBody(boxBodyDef);
    body3.createFixture(boxShapeDef);
    polygon.setAsBox(2, 1);
    boxShapeDef.filter.groupIndex = k_largeGroup;
    boxBodyDef.position.set(0, 6);
    Body body4 = world.createBody(boxBodyDef);
    body4.createFixture(boxShapeDef);
    CircleShape circle = new CircleShape();
    circle.setRadius(1);
    FixtureDef circleShapeDef = new FixtureDef();
    circleShapeDef.shape = circle;
    circleShapeDef.density = 1.0f;
    circleShapeDef.filter.groupIndex = k_smallGroup;
    circleShapeDef.filter.categoryBits = k_circleCategory;
    circleShapeDef.filter.maskBits = k_circleMask;
    BodyDef circleBodyDef = new BodyDef();
    circleBodyDef.type = BodyType.DynamicBody;
    circleBodyDef.position.set(5, 2);
    Body body5 = world.createBody(circleBodyDef);
    body5.createFixture(circleShapeDef);
    circle.setRadius(2);
    circleShapeDef.filter.groupIndex = k_largeGroup;
    circleBodyDef.position.set(5, 6);
    Body body6 = world.createBody(circleBodyDef);
    body6.createFixture(circleShapeDef);
}