Added bullet_per_shot and sector_angle implementation

game/entities/weapons/abstract_projectile.gd

@@ -18,6 +18,7 @@ signal destroyed
 @export var acceleration : int
 @export var max_distance : int
 @export var max_livetime : int
+@export var piercing: int
 
 @export var collide_player: bool:
 	set(value):
@@ -65,12 +66,14 @@ func process_distance(delta: float) -> void:
 	_traveled_distance += velocity.length() * delta
 	if max_distance > 0 and _traveled_distance > max_distance:
 		destroyed.emit()
+		queue_free()
 
 
 func process_livetime(delta: float) -> void:
 	_livetime += delta
 	if _livetime > max_livetime:
 		destroyed.emit()
+		queue_free()
 
 func _apply_collision_mask() -> void:
 	collision_mask |= PROJECTILE_BORDER_LAYER