class_name LinePattern
extends BulletSpawnPattern


@export var bullet_count: int
@export var line_width: float
@export_custom(0, "direction") var line_normal: Vector2 = Vector2.RIGHT


func spawn_bullets(bullet_set: BulletSet, preset: BulletPreset) -> void:
	for i in bullet_count:
		var bullet = Bullet.create(
			preset.textures.pick_random(),
			preset.hitbox_size,
			line_normal,
			preset.face_direction
		)
		
		var line = line_normal.orthogonal().rotated(bullet_set.spawn_rotation)
		var weight = float(i) / float(bullet_count - 1)
		weight -= 0.5
		if bullet_count == 1:
			weight = 0.0
		bullet.position = bullet_set.spawn_offset + line * weight * line_width
		
		bullet_set.add_bullet(bullet)