@Override
public void create() {
Bullet.init();
modelBatch = new ModelBatch();
environment = new Environment();
environment.set(new ColorAttribute(ColorAttribute.AmbientLight, 0.4f, 0.4f, 0.4f, 1f));
environment.add(new DirectionalLight().set(0.8f, 0.8f, 0.8f, -1f, -0.8f, -0.2f));
cam = new PerspectiveCamera(67, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
cam.position.set(3f, 7f, 10f);
cam.lookAt(0, 4f, 0);
cam.update();
camController = new CameraInputController(cam);
Gdx.input.setInputProcessor(camController);
ModelBuilder mb = new ModelBuilder();
mb.begin();
mb.node().id = "ground";
mb.part(
"box",
GL20.GL_TRIANGLES,
Usage.Position | Usage.Normal,
new Material(ColorAttribute.createDiffuse(Color.RED)))
.box(5f, 1f, 5f);
mb.node().id = "ball";
mb.part(
"sphere",
GL20.GL_TRIANGLES,
Usage.Position | Usage.Normal,
new Material(ColorAttribute.createDiffuse(Color.GREEN)))
.sphere(1f, 1f, 1f, 10, 10);
model = mb.end();
ground = new ModelInstance(model, "ground");
ball = new ModelInstance(model, "ball");
ball.transform.setToTranslation(0, 9f, 0);
instances = new Array<ModelInstance>();
instances.add(ground);
instances.add(ball);
ballShape = new btSphereShape(0.5f);
groundShape = new btBoxShape(new Vector3(2.5f, 0.5f, 2.5f));
groundObject = new btCollisionObject();
groundObject.setCollisionShape(groundShape);
groundObject.setWorldTransform(ground.transform);
ballObject = new btCollisionObject();
ballObject.setCollisionShape(ballShape);
ballObject.setWorldTransform(ball.transform);
collisionConfig = new btDefaultCollisionConfiguration();
dispatcher = new btCollisionDispatcher(collisionConfig);
}
public void update(float delta) {
// tmp.set(acceleration);
// tmp.scl(delta);
// velocity.add(tmp);
// velocity = velocity.scl(0.95f);
tmp.set(velocity);
tmp.scl(delta);
position.add(tmp);
transform.setTranslation(position);
collisionObject.setWorldTransform(transform);
}
public Projectile(
Vector3 startingPosition, Vector3 direction, float msSpeed, btCollisionWorld world) {
btCollisionShape sphere = new btSphereShape(0.5f);
collisionObject = new btCollisionObject();
collisionObject.setCollisionShape(sphere);
collisionObject.userData = this;
world.addCollisionObject(collisionObject);
position = new Vector3(startingPosition);
/*
acceleration = new Vector3(direction);
acceleration.nor().scl(msSpeed);*/
velocity = new Vector3(direction);
velocity.nor().scl(msSpeed);
transform = new Matrix4();
transform.setTranslation(position);
collisionObject.setWorldTransform(transform);
}
@Override
public void render() {
final float delta = Math.min(1f / 30f, Gdx.graphics.getDeltaTime());
if (!collision) {
ball.transform.translate(0f, -delta, 0f);
ballObject.setWorldTransform(ball.transform);
collision = checkCollision();
}
camController.update();
Gdx.gl.glClearColor(0.3f, 0.3f, 0.3f, 1.f);
Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT | GL20.GL_DEPTH_BUFFER_BIT);
modelBatch.begin(cam);
modelBatch.render(instances, environment);
modelBatch.end();
}