extends KinematicBody

export var gravity = -15.0
export var walk_speed = 8.0
export var run_speed = 16.0
export var jump_speed = 5.0
export var mouse_sensitivity = 0.0015
export var acceleration = 4.0
export var friction = 8.0
export var fall_limit = -1000.0

var pivot

var playable = true
var dir = Vector3.ZERO
var velocity = Vector3.ZERO
var speedlabel
var footstepPlayer
func _ready():
    pivot = $pivot
    footstepPlayer = $FootstepPlayer
    speedlabel = $"../../../speed"
    Input.set_mouse_mode(Input.MOUSE_MODE_CAPTURED)
    mouse_sensitivity *= $"../../".stretch_shrink

func _physics_process(delta):
    dir = Vector3.ZERO
    var basis = global_transform.basis
    if Input.is_action_pressed("move_forward"):
        dir -= basis.z
    if Input.is_action_pressed("move_back"):
        dir += basis.z
    if Input.is_action_pressed("move_left"):
        dir -= basis.x
    if Input.is_action_pressed("move_right"):
        dir += basis.x
    dir = dir.normalized()

    var speed = walk_speed
    if is_on_floor():
        #this prevents you from sliding without messing up the is_on_ground() check
        velocity.y += gravity * delta / 100.0
        if Input.is_action_pressed("run"):
            speed = run_speed
        if Input.is_action_pressed("jump"):
            velocity.y = jump_speed
    else:
        velocity.y += gravity * delta

    var hvel = velocity
    hvel.y = 0.0

    var target = dir * speed
    var accel



    if is_on_floor() and !Input.is_action_pressed("jump"):
        accel = friction
        hvel = hvel.linear_interpolate(target, accel * delta)
    else:
        if dir.dot(hvel) > 0: #not sudden turn
            accel = 0
        else :
            if !Input.is_action_pressed("move_forward"):
                print("air strafe:", (hvel.dot(dir)) )
                hvel += dir * (walk_speed-(hvel.dot(dir))) * 15 * delta
            else:
                accel = friction
                hvel = hvel.linear_interpolate(target, accel * delta)



    velocity.x = hvel.x
    velocity.z = hvel.z
    if playable:
        velocity = move_and_slide(velocity, Vector3.UP, false)
        var _vel = velocity
        _vel.y = 0
        var _hvel = _vel.length()
        if _hvel>0.1 and is_on_floor():
            if !footstepPlayer.playing:
                footstepPlayer.play()
                print(footstepPlayer.playing)
        speedlabel.text = String(_hvel) +"   fps:" + str(Performance.get_monitor(Performance.TIME_FPS))

    #prevents infinite falling
    if translation.y < fall_limit and playable:
        playable = false
        fader._reload_scene()

func _unhandled_input(event):
    if event is InputEventMouseMotion and playable:
        rotate_y(-event.relative.x * mouse_sensitivity)
        pivot.rotate_x(-event.relative.y * mouse_sensitivity)
        pivot.rotation.x = clamp(pivot.rotation.x, -1.2, 1.2)