tool
extends "res://addons/procedural_material/node_base.gd"

var iterations
var turbulence

func _ready():
	set_slot(0, false, 0, Color(0.5, 0.5, 1), true, 0, Color(0.5, 0.5, 1))
	initialize_properties([ $GridContainer/iterations, $GridContainer/turbulence ])

func get_shader_code(uv):
	var rv = { defs="", code="" }
	if !generated:
		rv.defs = "float "+name+"_f(vec2 uv) { return perlin(uv, "+str(iterations)+", "+str(turbulence)+"); }\n"
		generated = true
	rv.f = name+"_f("+uv+")"
	return rv