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class_name ConveyorModel
extends Node3D
var alpha: float = 0.
@onready var mat: ShaderMaterial = $ConveyorDirection.get_active_material(0)
func _process(delta):
alpha = G.interpolate(alpha, 0., delta)
mat.set_shader_parameter("alpha_fac", alpha)
func to_direction(direction: Vector2):
direction.y *= -1
$ConveyorDirection.rotation.y = direction.angle() + .5 * PI
alpha = 1.
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