I see that many people are having problems with moving the 2d camera with the mouse/touch, I was one of them, so I leave you a script that I made for godot v2.1 that I hope will facilitate you the life and development of your games. :)
(remember to activate the touchscreen emulation option in project settings and create "mb_left" in the input map options and set the option fixed topleft in the anchor mode option of the camera2d) ;)
Good Luck!! :)
extends Node2D
var cam
var pretouch = Vector2()
var dragging = false
func _ready():
cam = get_node("Camera2D")
set_process_input(true)
pass
func _input(event):
if event.is_action_pressed("mb_left"):
pretouch = Vector2(get_global_mouse_pos().x,get_global_mouse_pos().y)
if event.type == InputEvent.SCREEN_DRAG:
var current_touch = Vector2(event.x,event.y)
var v2d = pretouch - current_touch
if (v2d != Vector2(0,0)):
dragging = true
cam.set_global_pos(v2d)
if event.is_action_released("mb_left"):
dragging = false
