Raycast distance example

laser = Besiege.GetBlock("LASER 1")
water_cannon = Besiege.GetBlock("WATER CANNON 1")
water_cannon.SetToggleMode("HOLD TO SHOOT", True)

def Update():
    # we use laser position as origin of the raycast and add forward vector for offset to avoid raycasting laser block body
    origin = laser.Position + laser.Forward
    # we use laser forward direction vector as raycast direction
    direction = laser.Forward

    try:  # raycasting raises exception if it doesn't hit anything
        hit = Besiege.GetRaycastHit(origin, direction)   # point of the raycast hit
        distance = (hit - origin).magnitude              # calcuate distance from origin to hit position
        water_cannon.SetSliderValue("POWER", distance / 10.0)
        water_cannon.Shoot()
    except:
        pass  # do nothing