@tool class_name PlaneConvexDecompose

static func from(plane: Mesh, depth: float) -> Array[CollisionShape3D]:
	var vertices: Array[Vector3] = [Vector3.ZERO, Vector3.ZERO, Vector3.ZERO]
	var colliders: Array[CollisionShape3D] = []
	var i: int = 0
	for vertex in plane.get_faces():
		vertices[i] = vertex
		i += 1
		if i >= 3:
			i = 0
			var shape := ConvexPolygonShape3D.new()
			shape.points = [
				vertices[0], vertices[1], vertices[2],
				vertices[0] - Vector3.UP*depth,
				vertices[1] - Vector3.UP*depth,
				vertices[2] - Vector3.UP*depth
			]
			var collider := CollisionShape3D.new()
			collider.shape = shape
			colliders.push_back(collider)
	return colliders