3

Description

"You know that little circle under your character in platformer games? Here's that, in a single script!\r\n\r\n\r\n[video example on bsky](https:\/\/bsky.app\/profile\/gammagames.bsky.social\/post\/3lhyemnuwjs2x)\r\n\r\nAttach the script to a `ShapeCast3D` node and add a `Decal` child node:\r\n\r\n\r\nSet your decal node and make the shape cast, I use a distant target position:\r\n\r\n\r\nDecal is pretty simple:\r\n\r\n"

Main code

extends ShapeCast3D

@export var shadow : Decal
@export var min_distance : float = 1.0

@onready var _initial_alpha : float = shadow.modulate.a

func _physics_process(delta: float) -> void:
	for index in range(self.get_collision_count()):
		var distance := self.get_collision_point(index).distance_to(self.global_position)
		if distance > min_distance:
			shadow.global_position = self.get_collision_point(index)
			shadow.modulate.a = _initial_alpha
		else:
			shadow.modulate.a = lerp(0.0, _initial_alpha, distance / min_distance)

Comments