extends Control


export (Array, String) var titles: Array
export (Array, Texture) var palettes: Array
export var previous_screen: PackedScene


var current_palette: int = 0


onready var sg: TextureRect = $SG


func _ready() -> void:
	assert(titles.size() == palettes.size(), "titles and palettes arrays are not same size")
	sg.material.set_shader_param("palette", palettes[current_palette])
	$"%PaletteTitle".text = titles[current_palette]


func _input(event: InputEvent) -> void:
	if event.is_action_pressed("ui_cancel"):
		SceneManager.current_scene = previous_screen.instance()
		return
	elif event.is_action_pressed("ui_left"):
		current_palette -= 1
	elif event.is_action_pressed("ui_right"):
		current_palette += 1
	
	current_palette = posmod(current_palette, palettes.size())
	sg.material.set_shader_param("palette", palettes[current_palette])
	$"%PaletteTitle".text = titles[current_palette]