class_name BulletSpread extends Resource

@export var max_spread: float = 5.0
@export var spread_increase_per_shot: float = 0.5

var current_spread: float = 0.0
var shot_count: int = 0
var spread_y : float = 0
var spread_x: float = 0
var last_y_spread: float = 0 # remember y cord for 9th shot

func reset_spread() -> void:
	current_spread = 0.0
	shot_count = 0

# To get offset for current shot
func get_spread_offset() -> Vector3:
	# Increasing spread after each shot
	current_spread = min(current_spread + spread_increase_per_shot, max_spread)
	shot_count += 1

	# If its a 1 shot
	if shot_count == 1:
		return Vector3.ZERO

	
	if shot_count < 10:
		spread_x = randf_range(-current_spread, current_spread) * (shot_count - 1)
		spread_y = current_spread * (shot_count - 1)
		if shot_count == 9: last_y_spread = spread_y
	else: 
		spread_x = randf_range(-current_spread, current_spread) * 10
		spread_y = randf_range(last_y_spread - 10, last_y_spread + 10)

	return Vector3(spread_x, spread_y, 0)