@Override
public boolean touchDragged(int x, int y, int pointer) {
Ray ray = camera.getPickRay(x, y);
Intersector.intersectRayPlane(ray, plane, curr);
if (!(last.x == -1 && last.y == -1 && last.z == -1)) {
ray = camera.getPickRay(last.x, last.y);
Intersector.intersectRayPlane(ray, plane, delta);
delta.sub(curr);
camera.position.add(delta.x, delta.y, delta.z);
}
last.set(x, y, 0);
return false;
}
private int getObject(int screenX, int screenY) {
Ray ray = cam.getPickRay(screenX, screenY);
int result = -1;
float distance = -1;
for (int i = 0; i < instances.size; ++i) {
final ObjectInstance instance = (ObjectInstance) instances.get(i);
if (instance.equals(pitchInstance)) continue;
instance.transform.getTranslation(position);
position.add(instance.center);
final float len =
ray.direction.dot(
position.x - ray.origin.x, position.y - ray.origin.y, position.z - ray.origin.z);
if (len < 0f) continue;
float dist2 =
position.dst2(
ray.origin.x + ray.direction.x * len,
ray.origin.y + ray.direction.y * len,
ray.origin.z + ray.direction.z * len);
if (distance >= 0f && dist2 > distance) continue;
if (dist2 <= instance.radius * instance.radius) {
result = i;
distance = dist2;
}
}
return result;
}
public void shoot(final float x, final float y) {
// Shoot a box
Ray ray = camera.getPickRay(x, y);
Entity entity = world.add("box", ray.origin.x, ray.origin.y, ray.origin.z);
entity.color.set(
0.5f + 0.5f * (float) Math.random(),
0.5f + 0.5f * (float) Math.random(),
0.5f + 0.5f * (float) Math.random(),
1f);
entity.body.applyCentralImpulse(ray.direction.mul(30f));
}