extends CharacterBody3D

const BULLET = preload("res://Scenes/bullet.tscn")
@onready var bullet: CharacterBody3D = $"../Bullet"

var speed = 20.0
var speed_y = 3

var initial_position
var initial_rotation
var mouse_sensitivity := 0.001
var twist_input := 0.0
var pitch_input = 0.0
var forwardV = Vector3.FORWARD
var rightV = Vector3.RIGHT
var upV = Vector3.UP
var twist_angle = 0
var pitch_angle = 0
var initial_twist
var score = 0
var bullet_start

# Called when the node enters the scene tree for the first time.
func _ready() -> void:
    initial_position = position
    initial_rotation = rotation
    initial_twist = rotation.y
    bullet_start = bullet.position - position

func _physics_process(delta: float) -> void:
    var input_dir := Vector3(0, 0, 0)
    input_dir.x = Input.get_axis("ui_left", "ui_right")
    input_dir.y = 0   # Input.get_axis("ui_page_up", "ui_page_down")
    input_dir.z = Input.get_axis("ui_up", "ui_down")
    var direction := (transform.basis * Vector3(input_dir.x, 0, input_dir.z)).normalized()
    if input_dir:
        velocity.x = direction.x * speed
        velocity.y = -speed_y * input_dir.y
        velocity.z = direction.z * speed
    else:
        velocity.x = move_toward(velocity.x, 0, speed)
        velocity.y = move_toward(velocity.y, 0, speed)
        velocity.z = move_toward(velocity.z, 0, speed)
    rotate_view()
                              
    if Input.is_action_just_pressed("ui_accept"):
        fire()

    var collision_info = move_and_collide(velocity*delta, true)
    if collision_info:
        if collision_info.get_collider().name.contains("Bullet"):
            print("I am hit")

    move_and_slide()
                                                                
func rotate_view():
    rotation = initial_rotation
    rotate_x(pitch_angle)
    rotate_y(twist_angle)
    forwardV = forwardV.rotated(Vector3(0, 1, 0), twist_input)
    rightV = rightV.rotated(Vector3(0, 1, 0), twist_input)
     
func move_camera(delta:float):
    var input = Input.get_action_strength("ui_up")
    position = position + input * forwardV * speed * delta
    input = Input.get_action_strength("ui_down")
    position = position - input * forwardV * speed * delta
    input = Input.get_action_strength("ui_left")
    position = position - input * rightV * speed * delta
    input = Input.get_action_strength("ui_right")
    position = position + input * rightV * speed * delta
    input = Input.get_action_strength("ui_page_up")
    position = position + input * upV * speed * delta
    input = Input.get_action_strength("ui_page_down")
    position = position - input * upV * speed * delta

func _unhandled_input(event: InputEvent) -> void:
    if event is InputEventMouseMotion and Input.is_mouse_button_pressed(1) :
        twist_angle += -event.relative.x * mouse_sensitivity
        pitch_angle += -event.relative.y * mouse_sensitivity
        if pitch_angle > deg_to_rad(180) and pitch_angle < deg_to_rad(300):
            pitch_angle = deg_to_rad(300)
        elif pitch_angle < deg_to_rad(-60):
            pitch_angle = deg_to_rad(-60)
        elif pitch_angle > deg_to_rad(60) and pitch_angle <= deg_to_rad(180):
            pitch_angle = deg_to_rad(60)

func reset():
    position = initial_position
    rotation = initial_rotation
    pitch_angle = 0
    twist_angle = 0

func fire():
    var direction = transform.basis * bullet_start
    bullet.rotation = Vector3(90, 0, 0)
    bullet.rotate_y(twist_angle) 
    bullet.position = position + direction