public override void Start()
{
simulation = this.GetSimulation();
simulation.Gravity = new Vector3(0, -9, 0);
cubeRigidBody = cube.Get<RigidbodyComponent>();
cubeRigidBody.CanSleep = false;
sphereRigidBody = sphere.Get<RigidbodyComponent>();
sphereRigidBody.CanSleep = false;
// Create the UI
constraintNameBlock = new TextBlock
{
Font = Font,
TextSize = 55,
TextColor = Color.White,
};
constraintNameBlock.SetCanvasPinOrigin(new Vector3(0.5f, 0.5f, 0));
constraintNameBlock.SetCanvasRelativePosition(new Vector3(0.5f, 0.83f, 0));
Entity.Get<UIComponent>().Page = new UIPage
{
RootElement = new Canvas
{
Children =
{
constraintNameBlock,
CreateButton("Next", Font, 1),
CreateButton("Previous", Font, -1)
}
}
};
// Create and initialize constraint
PhysicsSampleList.Add(CreatePoint2PointConstraint);
PhysicsSampleList.Add(CreateHingeConstraint);
PhysicsSampleList.Add(CreateGearConstraint);
PhysicsSampleList.Add(CreateSliderConstraint);
PhysicsSampleList.Add(CreateConeTwistConstraint);
PhysicsSampleList.Add(CreateGeneric6DoFConstraint);
PhysicsSampleList[constraintIndex]();
//Add a script for the slider constraint, to apply an impulse on collision
cubeRigidBody.ProcessCollisions = true;
Script.AddTask(async () =>
{
while (Game.IsRunning)
{
var collision = await cubeRigidBody.NewCollision();
if (!(currentConstraint is SliderConstraint)) continue;
if (collision.ColliderA != sphereRigidBody && collision.ColliderB != sphereRigidBody) continue;
sphereRigidBody.LinearVelocity = Vector3.Zero; //clear any existing velocity
sphereRigidBody.ApplyImpulse(new Vector3(-25, 0, 0)); //fire impulse
}
});
}
