gmtk-2024/enemies/crawler.gd

class_name Crawler extends Entity

@onready var player = get_parent().get_parent().get_node("Player");
@onready var sprite = $AnimatedSprite2D
@onready var main_collider = $CollisionShape2D
@onready var whip = $WhipArea
@onready var speed_mult = 0
@onready var is_dying = false
@onready var explosion_sfx = $ExplosionSFX
@onready var death_timer = $DeathTimer
@onready var hurting = false
@onready var hurt_timer = $HurtTimer
@onready var attack_timer = $AttackTimer
@onready var recharge_timer = $Recharge

## Crawl towards the player but stay within striking distance and not super close

const HEALTH = 45
const SPEED_MULTIPLIER = 50
const ATTACK_DAMAGE = 20

var death_timer_started = false
var attacking = true

func _init() -> void: 
	super._init(HEALTH, SPEED_MULTIPLIER, ATTACK_DAMAGE)

func _ready() -> void:
	whip.visible = false
	
func face_player():
	var player_position = player.global_position
	var crawler_position = global_position
	
	if player_position.x > crawler_position.x and not sprite.flip_h:
		sprite.flip_h = true
		main_collider.position.x -= 62
		position.x += 62
		whip.position.x += 10
	elif player_position.x < crawler_position.x and sprite.flip_h:
		sprite.flip_h = false
		main_collider.position.x += 62
		position.x -= 62
		whip.position.x -= 10

func _physics_process(delta: float) -> void:
	var distanceToPlayer = global_position.distance_to(player.global_position)
	var desiredDistance = 70
	
	if health <= 0 and !death_timer_started:
		is_dying = true
		death_timer_started = true
		death_timer.start()
	
	if !is_dying:
		if !hurting:
			if sprite.flip_h:
				desiredDistance -= 69
				face_player()

			if distanceToPlayer > desiredDistance:
				velocity.x = speed * speed_mult
				face_player()
				
				if not sprite.flip_h:
					velocity.x *= -1
				
				sprite.play("walk")
			else:
				if recharge_timer.is_stopped():
					attacking = true
					whip.visible = true
					whip.connect("body_entered", whip_hit)
					attack_timer.start()
				
				if attacking and !attack_timer.is_stopped():
					velocity.x = 0
					sprite.play("Whip")
				elif attacking and attack_timer.is_stopped():
					recharge_timer.start()
					whip.visible = false
					whip.disconnect("body_entered", whip_hit)
					attacking = false
				
		
		if hurt_timer.is_stopped():
			hurting = false
		else:
			sprite.play("jump away")
		
		if speed_mult != 0:
			move_and_slide()
	else:
		sprite.play("death")
		explosion_sfx.play()
		speed_mult = 0
		if death_timer.is_stopped():
			queue_free()
	
func charge() -> void:
	speed_mult = 1

func hurt_anim():
	hurting = true
	hurt_timer.start()

func whip_hit(node: Node) -> void:
	if node is Player:
		node.health -= ATTACK_DAMAGE
		node.take_knockback(50)
		if node.has_method("hurt_anim"):
			node.call("hurt_anim")