extends Camera2D
class_name Camera

const MOVE_LERP_WEIGHT = 0.9
const ZOOM_LERP_WEIGHT = 0.05

const ZOOM_STEP = 0.1

@export var following : Node2D
@onready var settings = GameInfo.settings_data 

func _input(_e):
	if Input.is_action_just_pressed("zoom_in"):
		settings.zoom = settings.zoom + ZOOM_STEP
		GameInfo.save_settings()
	if Input.is_action_just_pressed("zoom_out"):
		settings.zoom = settings.zoom - ZOOM_STEP
		GameInfo.save_settings()

func _ready():
	if following:
		zoom =  Vector2.ONE * settings.zoom
		global_position = following.global_position

func _process(_delta):
	if following:
		global_position = following.global_position.lerp(global_position, MOVE_LERP_WEIGHT)
	
	zoom =  zoom.lerp(Vector2.ONE * settings.zoom, MOVE_LERP_WEIGHT)