class_name StepVisualization
extends Node2D

static var game_manager: GameManager
static var world: World
#
# Dictionary[Array[Vector2i], bool] ([from, to], string)
static var draw_lines: Dictionary = {}


static func add_line(from: Vector2i, to: Vector2i, label: String) -> void:
    draw_lines[[from, to]] = label


static func add_line_tileset(from: Vector2i, to: Vector2i, label: String) -> void:
    var add_factor: Vector2i = world.tilemap_ground.tilemap.tile_set.tile_size
    add_factor.x /= 2
    add_factor.y /= 2

    var from_tileset: Vector2i = world.tilemap_ground.cell_to_local(from)
    from_tileset.x += add_factor.x
    from_tileset.y += add_factor.y

    var to_tileset: Vector2i = world.tilemap_ground.cell_to_local(to)
    to_tileset.x += add_factor.x
    to_tileset.y += add_factor.y

    draw_lines[[from_tileset, to_tileset]] = label


func game_tick_start():
    draw_lines.clear()


func game_tick_end():
    queue_redraw()

var label_font = Control.new().get_theme_default_font()


func _ready() -> void:
    pass


func _draw() -> void:
    # draw all draw_lines with their labels
    for key in draw_lines.keys():
        var from: Vector2i = key[0]
        var to: Vector2i   = key[1]
        var label: String  = draw_lines[key]
        draw_line(from, to, Color("red"), 2)
        var center: Vector2 = (from + to) / 2
        draw_string(label_font, center, label)