extends KinematicBody

export var speed = 20
export var h_acceleration = 6
export var air_acceleration = 1
export var normal_acceleration = 6
export var gravity = 40
export var jump = 30

export var mouse_sensitivity = 0.03

var bottom_boudaries = -20

var full_contact = false
var direction = Vector3()
var h_velocity = Vector3()
var movement = Vector3()
var gravity_vec = Vector3()

onready var head = $Head
onready var ground_check = $GroundCheck

func _ready():
	Input.set_mouse_mode(Input.MOUSE_MODE_CAPTURED)

func _input(event):
	if event is InputEventMouseMotion:
		rotate_y(deg2rad(-event.relative.x * mouse_sensitivity))
		head.rotate_x(deg2rad(-event.relative.y * mouse_sensitivity))
		head.rotation.x = clamp(head.rotation.x, deg2rad(-89), deg2rad(89))
		

func _physics_process(delta):
	
	if global_transform.origin.y < bottom_boudaries:
		global_transform.origin.x = 0
		global_transform.origin.y = 10
		global_transform.origin.z = 0
	
	direction = Vector3()
	
	full_contact = ground_check.is_colliding()
	
	if not is_on_floor():
		gravity_vec += Vector3.DOWN * gravity * delta
		h_acceleration = air_acceleration
	elif is_on_floor() and full_contact:
		gravity_vec = -get_floor_normal()  * gravity
		h_acceleration = normal_acceleration
	else:
		gravity_vec = -get_floor_normal()
		h_acceleration = normal_acceleration
	
	
	if Input.is_action_just_pressed("jump") and (is_on_floor() or ground_check.is_colliding()):
		gravity_vec = Vector3.UP * jump
	
	if Input.is_action_pressed("move_forward"):
		direction -= transform.basis.z
	elif Input.is_action_pressed("move_backward"):
		direction += transform.basis.z
	if Input.is_action_pressed("move_left"):
		direction -= transform.basis.x
	elif Input.is_action_pressed("move_right"):
		direction += transform.basis.x
	
	direction = direction.normalized()
	h_velocity = h_velocity.linear_interpolate(direction * speed, h_acceleration * delta)
	movement.z = h_velocity.z + gravity_vec.z
	movement.x = h_velocity.x + gravity_vec.x
	movement.y = gravity_vec.y
	
	move_and_slide(movement, Vector3.UP)