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

var angle = 0.0

func _ready():
	set_slot(0, true, 0, Color(0.5, 0.5, 1), true, 0, Color(0.5, 0.5, 1))

func get_shader_code(uv):
	var rv = { defs="", code="", uv=null, rgb=null, f=null }
	var src = get_source()
	if src == null:
		return rv
	rv.uv = name+"_uv("+uv+")"
	var src_code = src.get_shader_code(rv.uv)
	if !generated:
		rv.defs = src_code.defs+"vec2 "+name+"_uv(vec2 uv) { return rotate(uv, "+str(angle)+"); }\n"
		generated = true
	rv.f = src_code.f
	rv.rgb = src_code.rgb
	return rv

func _on_Rotate_text_changed(new_text):
	angle = float(new_text)*3.1415928/180.0
	get_parent().get_parent().generate_shader()