Enemy.gd

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`b856550a` 2023-10-30 Pavel Safronov	1	extends KinematicBody2D
`f398dcb9` 2023-11-02 Pavel Safronov	2	class_name Enemy
`b856550a` 2023-10-30 Pavel Safronov	3
	4	onready var ray_cast_2d: RayCast2D = $RayCast2D
`cf2013fa` 2023-11-02 Pavel Safronov	5	onready var damage_points = $DamagePoints
`5b18ed86` 2023-11-01 Pavel Safronov	6	const Utils = preload("res://Utils.gd")
	7	const Explosion = preload("res://Explosion.tscn")
`cf2013fa` 2023-11-02 Pavel Safronov	8	const Smoke = preload("res://Smoke.tscn")
`b856550a` 2023-10-30 Pavel Safronov	9
`ad6f22a5` 2023-11-02 Pavel Safronov	10	export var move_speed = 40
`e9f8f8f2` 2023-11-01 Pavel Safronov	11	export var health = -1
`b856550a` 2023-10-30 Pavel Safronov	12	export var max_health = 10
`1d4ba5a6` 2023-11-02 Pavel Safronov	13	export var is_targeted = false
`52220002` 2023-11-06 Pavel Safronov	14	export var is_invincible = false
`5b18ed86` 2023-11-01 Pavel Safronov	15	signal enemy_killed
`b856550a` 2023-10-30 Pavel Safronov	16
	17	var velocity = Vector2.ZERO
	18	var dead = false
	19
`e9f8f8f2` 2023-11-01 Pavel Safronov	20	func _ready() -> void:
`cf2013fa` 2023-11-02 Pavel Safronov	21	if health < 0 or health > max_health:
`e9f8f8f2` 2023-11-01 Pavel Safronov	22	health = max_health
`cf2013fa` 2023-11-02 Pavel Safronov	23	else:
	24	var hurt_points = max_health - health
	25	health = max_health
	26	for i in hurt_points:
	27	hurt()
`e9f8f8f2` 2023-11-01 Pavel Safronov	28
`236d1677` 2023-11-01 Pavel Safronov	29	func _process(_delta: float) -> void:
`614e7fb1` 2023-10-31 Pavel Safronov	30	$Graphics/Alive/Container/HealthLabel.text = "%s / %s" % [health, max_health]
	31	$Graphics/Alive/Container.global_rotation = 0
`1d4ba5a6` 2023-11-02 Pavel Safronov	32	$Graphics/Alive/Target.visible = is_targeted
`614e7fb1` 2023-10-31 Pavel Safronov	33
`8c2ffd3f` 2023-11-02 Pavel Safronov	34	func _physics_process(_delta: float) -> void:
`b856550a` 2023-10-30 Pavel Safronov	35	if dead:
	36	return
`5b18ed86` 2023-11-01 Pavel Safronov	37	var players = get_tree().get_nodes_in_group("player")
`f398dcb9` 2023-11-02 Pavel Safronov	38	var player: Player = players[0]
	39	if player.dead:
	40	return
`b856550a` 2023-10-30 Pavel Safronov	41	var dist_to_player = global_position.distance_to(player.global_position)
	42	var dir_to_player = global_position.direction_to(player.global_position)
	43	var angle_to_player = dir_to_player.angle() + PI / 2.0
`614e7fb1` 2023-10-31 Pavel Safronov	44	var vel = dir_to_player * move_speed
`b856550a` 2023-10-30 Pavel Safronov	45	global_rotation = angle_to_player
`d9bff51f` 2023-10-31 Pavel Safronov	46	velocity = move_and_slide(vel)
`b856550a` 2023-10-30 Pavel Safronov	47
	48	var ray_length = ray_cast_2d.cast_to.length()
`f398dcb9` 2023-11-02 Pavel Safronov	49	if ray_cast_2d.is_colliding():
	50	if ray_cast_2d.get_collider() == player and dist_to_player < (ray_length + 5):
	51	player.hurt(2)
	52	var explosion = Explosion.instance()
	53	explosion.transform = transform
	54	get_parent().add_child(explosion)
	55	kill()
`b856550a` 2023-10-30 Pavel Safronov	56
	57	func hurt():
`52220002` 2023-11-06 Pavel Safronov	58	if dead \|\| is_invincible:
`b856550a` 2023-10-30 Pavel Safronov	59	return
	60	health -= 1
`cf2013fa` 2023-11-02 Pavel Safronov	61	var smoke = Smoke.instance()
	62	var smoke_pos = get_damage_point_on_body()
	63	smoke.position = smoke_pos
	64	add_child(smoke)
`b856550a` 2023-10-30 Pavel Safronov	65	if health <= 0:
	66	kill()
	67
	68	func kill():
`52220002` 2023-11-06 Pavel Safronov	69	if dead \|\| is_invincible:
`b856550a` 2023-10-30 Pavel Safronov	70	return
	71	dead = true
	72	$Graphics/Alive.hide()
`e9f8f8f2` 2023-11-01 Pavel Safronov	73	$CollisionPolygon2D.queue_free()
`c6faad15` 2023-10-31 Pavel Safronov	74	var explosion = Explosion.instance()
	75	explosion.connect("explosion_done", self, "_on_death_explosion_finished")
	76	$Graphics.add_child(explosion)
`b856550a` 2023-10-30 Pavel Safronov	77	z_index = -1
`5b18ed86` 2023-11-01 Pavel Safronov	78	emit_signal("enemy_killed")
`c6faad15` 2023-10-31 Pavel Safronov	79
	80	func _on_death_explosion_finished():
`cf2013fa` 2023-11-02 Pavel Safronov	81	$AnimationPlayer.play("fade_out")
	82
	83	func get_damage_point_on_body() -> Vector2:
	84	var child_count = damage_points.get_child_count()
	85	var random_index = randi() % child_count
	86	var random_child: Position2D = damage_points.get_child(random_index)
	87	return random_child.position