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

Example 11 with FixtureDef

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

the class Cantilever method createWorld.

@Override
protected void createWorld(World world) {
    Body ground;
    {
        BodyDef bd = new BodyDef();
        ground = world.createBody(bd);
        EdgeShape shape = new EdgeShape();
        shape.set(new Vector2(-40, 0), new Vector2(40, 0));
        ground.createFixture(shape, 0);
        shape.dispose();
    }
    {
        PolygonShape shape = new PolygonShape();
        shape.setAsBox(0.5f, 0.125f);
        FixtureDef fd = new FixtureDef();
        fd.shape = shape;
        fd.density = 20.0f;
        WeldJointDef jd = new WeldJointDef();
        Body prevBody = ground;
        for (int i = 0; i < e_count; i++) {
            BodyDef bd = new BodyDef();
            bd.type = BodyType.DynamicBody;
            bd.position.set(-14.5f + 1.0f * i, 5.0f);
            Body body = world.createBody(bd);
            body.createFixture(fd);
            Vector2 anchor = new Vector2(-15.0f + 1 * i, 5.0f);
            jd.initialize(prevBody, body, anchor);
            world.createJoint(jd);
            prevBody = body;
        }
        shape.dispose();
    }
    {
        PolygonShape shape = new PolygonShape();
        shape.setAsBox(0.5f, 0.125f);
        FixtureDef fd = new FixtureDef();
        fd.shape = shape;
        fd.density = 20.0f;
        WeldJointDef jd = new WeldJointDef();
        Body prevBody = ground;
        for (int i = 0; i < e_count; i++) {
            BodyDef bd = new BodyDef();
            bd.type = BodyType.DynamicBody;
            bd.position.set(-14.5f + 1.0f * i, 15.0f);
            bd.gravityScale = 10.0f;
            Body body = world.createBody(bd);
            body.createFixture(fd);
            Vector2 anchor = new Vector2(-15.0f + 1.0f * i, 15.0f);
            jd.initialize(prevBody, body, anchor);
            world.createJoint(jd);
            prevBody = body;
        }
        shape.dispose();
    }
    {
        PolygonShape shape = new PolygonShape();
        shape.setAsBox(0.5f, 0.125f);
        FixtureDef fd = new FixtureDef();
        fd.shape = shape;
        fd.density = 20.0f;
        WeldJointDef jd = new WeldJointDef();
        Body prevBody = ground;
        for (int i = 0; i < e_count; i++) {
            BodyDef bd = new BodyDef();
            bd.type = BodyType.DynamicBody;
            bd.position.set(-4.5f + 1.0f * i, 5.0f);
            Body body = world.createBody(bd);
            body.createFixture(fd);
            if (i > 0) {
                Vector2 anchor = new Vector2(-5.0f + 1.0f * i, 5.0f);
                jd.initialize(prevBody, body, anchor);
                world.createJoint(jd);
            }
            prevBody = body;
        }
        shape.dispose();
    }
    {
        PolygonShape shape = new PolygonShape();
        shape.setAsBox(0.5f, 0.125f);
        FixtureDef fd = new FixtureDef();
        fd.shape = shape;
        fd.density = 20.0f;
        WeldJointDef jd = new WeldJointDef();
        Body prevBody = ground;
        for (int i = 0; i < e_count; i++) {
            BodyDef bd = new BodyDef();
            bd.type = BodyType.DynamicBody;
            bd.position.set(5.5f + 1.0f * i, 10.0f);
            bd.gravityScale = 10.0f;
            Body body = world.createBody(bd);
            body.createFixture(fd);
            if (i > 0) {
                Vector2 anchor = new Vector2(5.0f + 1.0f * i, 10.0f);
                jd.initialize(prevBody, body, anchor);
                world.createJoint(jd);
            }
            prevBody = body;
        }
        shape.dispose();
    }
    for (int i = 0; i < 2; i++) {
        Vector2[] vertices = new Vector2[3];
        vertices[0] = new Vector2(-0.5f, 0);
        vertices[1] = new Vector2(0.5f, 0);
        vertices[2] = new Vector2(0, 1.5f);
        PolygonShape shape = new PolygonShape();
        shape.set(vertices);
        FixtureDef fd = new FixtureDef();
        fd.shape = shape;
        fd.density = 1.0f;
        BodyDef bd = new BodyDef();
        bd.type = BodyType.DynamicBody;
        bd.position.set(-8.0f + 8.0f * i, 12.0f);
        Body body = world.createBody(bd);
        body.createFixture(fd);
        shape.dispose();
    }
    for (int i = 0; i < 2; i++) {
        CircleShape shape = new CircleShape();
        shape.setRadius(0.5f);
        FixtureDef fd = new FixtureDef();
        fd.shape = shape;
        fd.density = 1.0f;
        BodyDef bd = new BodyDef();
        bd.type = BodyType.DynamicBody;
        bd.position.set(-6.0f + 6.0f * i, 10.0f);
        Body body = world.createBody(bd);
        body.createFixture(fd);
        shape.dispose();
    }
}

Example 12 with FixtureDef

use of com.badlogic.gdx.physics.box2d.FixtureDef 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);
}

Example 13 with FixtureDef

use of com.badlogic.gdx.physics.box2d.FixtureDef 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 14 with FixtureDef

use of com.badlogic.gdx.physics.box2d.FixtureDef 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);
}

Example 15 with FixtureDef

use of com.badlogic.gdx.physics.box2d.FixtureDef in project Entitas-Java by Rubentxu.

the class CreateRadarSensorSystem method execute.

@Override
protected void execute(List<SensorEntity> entities) {
    Vector2[] vertices = new Vector2[8];
    vertices[0] = new Vector2();
    for (SensorEntity e : entities) {
        GameEntity gameEntity = Indexed.getInteractiveEntity(e.getLink().ownerEntity);
        RigidBody rigidBody = gameEntity.getRigidBody();
        RadarSensor radarSensor = e.getRadarSensor();
        if (radarSensor.angle < 180) {
            for (int i = 0; i < 7; i++) {
                float angle = (float) (i / 6.0 * radarSensor.angle) - (radarSensor.angle / 2) + (radarSensor.axis2D.ordinal() * 90);
                vertices[i + 1] = new Vector2(radarSensor.distance * MathUtils.cosDeg(angle), radarSensor.distance * MathUtils.sinDeg(angle));
            }
            FixtureDef radarFixture = bodyBuilder.fixtureDefBuilder().polygonShape(vertices).sensor().build();
            rigidBody.body.createFixture(radarFixture).setUserData("RadarSensor");
        }
    }
}