brackeys-12/camera.gd

extends Camera2D

# Variables to control zoom limits and speed
var zoom_min = 0.5
var zoom_max = 2.0
var zoom_speed = 0.1

# Variables for panning
var is_panning = false
var last_mouse_position = Vector2()
var pan_speed = 1000

@onready var camera_target = position


func _process(delta: float) -> void:
	position = position.move_toward(camera_target, delta * pan_speed)


func _input(event):
	if event is InputEventMouseButton:
		# Zoom in (scroll up)
		if event.button_index == MOUSE_BUTTON_WHEEL_DOWN:
			zoom -= Vector2(zoom_speed, zoom_speed)
		# Zoom out (scroll down)
		elif event.button_index == MOUSE_BUTTON_WHEEL_UP:
			zoom += Vector2(zoom_speed, zoom_speed)

		# Clamp the zoom value to stay within zoom_min and zoom_max
		zoom.x = clamp(zoom.x, zoom_min, zoom_max)
		zoom.y = clamp(zoom.y, zoom_min, zoom_max)
		
		# Handle panning with right click
		if event.button_index == MOUSE_BUTTON_RIGHT:
			if event.pressed:
				is_panning = true
				last_mouse_position = Cursor.mouse_control.position
			else:
				is_panning = false
	
	# Handle panning movement
	if is_panning and event is InputEventMouseMotion:
		var mouse_movement = last_mouse_position - Cursor.mouse_control.position
		camera_target += mouse_movement / zoom.x
		#global_position += mouse_movement * zoom.x # Adjust movement based on zoom level
		last_mouse_position = Cursor.mouse_control.position