extends CharacterBody3D

const SPEED = 2.5
const JUMP_VELOCITY = 4.5

var face_rotation = 0
var face_left = false

var health = 35
var mid_knockback = false

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

enum {
	STATE_IDLE,
	STATE_JUMP,
	STATE_LEAP,
	STATE_HIT,
	STATE_DEATH
}

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/Animator.play("idle")

func _physics_process(delta: float) -> void:
	face_rotation = player.get_node("DreamerBody").global_rotation.y
	
	if (health <= 0) and (state != STATE_DEATH):
		state = STATE_DEATH
		state_timer = 0.75
		$Body/Animator.play("jump")
		
	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_DEATH:
			queue_free()
			
	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 = 0.5
		
		$Body/Animator.play("idle")
	elif (state == STATE_DEATH):
		pass
	
	if iframes > 0:
		iframes -= delta
		$Body.modulate.a = 0.5
	else:
		$Body.modulate.a = 1
	
	#wa$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)
	
	if face_left:
		$Body.rotation.y = face_rotation + deg_to_rad(180)
	else:
		$Body.rotation.y = face_rotation
	
	if is_on_floor() and not mid_knockback:
		velocity.x = move_toward(velocity.x, 0, delta * 16)
		velocity.z = move_toward(velocity.z, 0, delta * 16)

	move_and_slide() 
	
	if player in $HitCollision.get_overlapping_bodies():
		if player.iframes <= 0:
			player.health -= 20
			player.on_hit(self)
	
	if mid_knockback: mid_knockback = false
		
	$Shadow.global_position.y = $Floorcast.get_collision_point().y + 0.01