Camera Script

extends Spatial

export var ZoomSpeed = 0.5
export var RotateSpeed = 0.15

var Distance
var oldDistance
var newDistance

var zoom_level = 1
var moveCam = false

onready var ZoomTween = get_node("ZoomLevel")

# Called when the node enters the scene tree for the first time.
func _ready():
    # set as the top level
    set_as_toplevel(true)
    # hide the helper mesh
    $XRotate/HelperMesh.hide()


func _process(delta):

    # get input from controller
    var xRotateAmount = Input.get_action_strength("cam_down") - Input.get_action_strength("cam_up")
    var yRotateAmount = Input.get_action_strength("cam_right") - Input.get_action_strength("cam_left")

    # store the toggle_distance action
    var toggle_distance = Input.is_action_just_pressed("toggle_distance")

    # rotate yRotate node depending on yRotateAmount
    rotate_y(-yRotateAmount * RotateSpeed)

    # rotate xRotate node
    $XRotate.rotate_x(-xRotateAmount * RotateSpeed)

    # increase zoom level if we have toggled the distance
    if toggle_distance:
        zoom_level += 1
        _update_distance()

    # check the status of zoom level and set Distance accordingly
    if zoom_level == 1:
        oldDistance = 20
        Distance = 10
    elif zoom_level == 2:
        Distance = 15
        oldDistance = 10
    elif zoom_level == 3:
        Distance = 20
        oldDistance = 15

    # reset zoom level if we exceed it
    if zoom_level > 3:
        zoom_level = 1
        Distance = 10

func _update_distance():
    # set the distance of the camera
    ZoomTween.interpolate_property($XRotate/Camera, "XRotate/Camera.transform.origin.z", oldDistance, Distance, ZoomSpeed, Tween.TRANS_LINEAR, Tween.EASE_IN_OUT, 0)
    ZoomTween.start()
    print ("ZoomTween Started")