// TODO 1: If mouse button 1 is pressed ...
			if (App->input->GetMouseButton(SDL_BUTTON_LEFT) == KEY_DOWN)
			{
				// test if the current body contains mouse position
				bool hit;
				b2Transform transform = b->GetTransform();
				b2Shape* shape = f->GetShape();
				hit = shape->TestPoint(transform, point);


				if (hit == true)
				{
					b2MouseJointDef def;
					def.bodyA = ground;
					def.bodyB = b;
					def.target = point;
					def.dampingRatio = 0.5f;
					def.frequencyHz = 2.0f;
					def.maxForce = 100.0f * b->GetMass();
					mouse_joint = (b2MouseJoint*)world->CreateJoint(&def);
				}
			}

			if (App->input->GetMouseButton(SDL_BUTTON_LEFT) == KEY_REPEAT  && mouse_joint)
			{
				mouse_joint->SetTarget(point);
				App->renderer->DrawLine(METERS_TO_PIXELS(point.x), METERS_TO_PIXELS(point.y), METERS_TO_PIXELS(mouse_joint->GetAnchorB().x), METERS_TO_PIXELS(mouse_joint->GetAnchorB().y), 255, 255, 255);
			}
			if (App->input->GetMouseButton(SDL_BUTTON_LEFT) == KEY_UP  && mouse_joint)
			{
				world->DestroyJoint(mouse_joint);
				mouse_joint = nullptr;
			}
		}
	}

	return UPDATE_CONTINUE;
}