extends Camera2D

@export var minZoom := 0.01
@export var maxZoom := 2.0
@export var zoomFactor := 0.1
@export var zoomDuration := 0.2
var zoomLevel: float = 1
var dragging: bool = false

func _ready():
	pass

func _input(event):
	if event.is_action_pressed("zoomIn"):
		setZoomLevel(zoomLevel + zoomFactor)
	elif event.is_action_pressed("zoomOut"):
		setZoomLevel(zoomLevel - zoomFactor)
	elif event.is_action_pressed("resetCamera"):
		reset()

func _unhandled_input(event):
	if event is InputEventMouseButton:
		if event.get_button_index() == 1:
			dragging = event.is_pressed()
	elif event is InputEventMouseMotion:
		if dragging:
			self.global_position -= event.get_relative() * 1/zoomLevel
	

func setZoomLevel(level: float, mouse_world_position = self.get_global_mouse_position()):
	var old_zoomLevel = zoomLevel
	zoomLevel = clampf(level, minZoom, maxZoom)
	
	var direction = (mouse_world_position - global_position)
	var new_position = self.global_position + direction - ((direction) / (zoomLevel/old_zoomLevel))
	
	zoom = Vector2(zoomLevel, zoomLevel)
	self.global_position = new_position

func reset():
	self.global_position = Vector2(0, 0)