extends CharacterBody3D

const SPEED = 2.5
const JUMP_VELOCITY = 4.5

var face_rotation = null
var face_left = false

var combatable = false
var health = 100
var mid_knockback = false

@onready var player = get_parent().get_node("Player")

enum {
	STATE_IDLE,
	STATE_JUMP,
	STATE_LEAP,
	STATE_HIT,
}

var state = STATE_IDLE
var state_timer = 1

var iframes = 0

@onready var game = get_parent()
@onready var camera = game.get_node("PlayerCamera")

func on_knockback() -> void:
	state_timer = 99999
	state = STATE_HIT
	$Body/Animator.play("leap")

func _ready() -> void:
	$Body.look_at(game.get_node("PlayerCamera").global_position)
	$Body.rotation.x = 0
	face_rotation = $Body.rotation.y
	
	$Body/Animator.play("idle")

func _physics_process(delta: float) -> void:
	state_timer -= delta
	
	if state_timer < 0:
		if state == STATE_IDLE:
			state = STATE_JUMP
			state_timer = 0.6
			$Body/Animator.play("jump")
			
		elif state == STATE_JUMP:
			state = STATE_LEAP
			state_timer = 99999
			$Body/Animator.play("leap")
			velocity = global_position.direction_to(player.global_position) * 3
			velocity.y = 3
			
	elif (state == STATE_LEAP) and is_on_floor():
		state = STATE_IDLE
		state_timer = randf_range(0.8, 1.5)
		
		$Body/Animator.play("idle")
	elif (state == STATE_HIT) and is_on_floor():
		state = STATE_IDLE
		state_timer = 0
		
		$Body/Animator.play("idle")
	
	if iframes > 0:
		iframes -= delta
		$Body.modulate.a = 0.5
	else:
		$Body.modulate.a = 1
	
	$HealthLabel.text = str(health)
	
	if not is_on_floor():
		velocity += get_gravity() * delta
		
	var viewport_half = (get_viewport().get_visible_rect().size / 2.0)
	var player_position = camera.unproject_position(global_transform.origin)
	
	print(viewport_half)
	print(player_position)
	
	if face_left:
		$Body.rotation.y = face_rotation + deg_to_rad(180)
	else:
		$Body.rotation.y = face_rotation
	
	
	var input_dir := Vector2.ZERO
	if not combatable:
		if input_dir.x > 0:
			face_left = false
		if input_dir.x < 0:
			face_left = true
	
	var direction = (camera.transform.basis * Vector3(input_dir.x, 0, input_dir.y)).normalized()
	if is_on_floor() and not mid_knockback:
		if direction:
			velocity.x = direction.x * SPEED
			velocity.z = direction.z * SPEED
		else:
			velocity.x = move_toward(velocity.x, 0, delta * 16)
			velocity.z = move_toward(velocity.z, 0, delta * 16)

	move_and_slide() 
	
	if mid_knockback: mid_knockback = false
		
	$Shadow.global_position.y = $Floorcast.get_collision_point().y + 0.01