Need to get variable from an instanced scene.

ItamiToShi

I'm trying to reuse assets to save on memory, I previously posted about an issue what has been resolved, that previous issue was being able to assign the collision masking when creating an instance, again that was resolved. My new issue is related to the bullet from the previous posting, I have a variable on the bullet scene called, "bulletDamage." I know how to set the damage in code, when created the bullet instance, but I don't know how to apply the bulletDamage to the player or to the enemy when hit by the bullet instance.

Here's the code I have that doesn't cause any errors, but also doesn't work as desired:

func shoot():  #this is the shoot function from the enemy scene script
	var bullet = bulletPath.instance()
	var target = $Node2D/BulletDirection.global_position
	var direction = Vector2.ZERO
	get_parent().add_child(bullet)
	bullet.hitBox.set_collision_mask_bit(2, true)
	bullet.hitBox.set_collision_mask_bit(3, false)
	bullet.position = $Node2D/BulletEmitter.global_position
	bullet.rotation_degrees = $Node2D.rotation_degrees
	direction = bullet.global_position.direction_to(target).normalized()
	bullet.set_direction(direction)
	bullet.bulletDamage = 3 #weaponDamage
	CoolDown.start()

func _on_HurtBox_area_entered(area):  #this is the HurtBox entered function from the player scene script
	if hp > 0:
		hp -= bulletPath.instance().bulletDamage
	else:
		state = DYING

It seems to be applying the default bulletDamage of 1 instead of the new value 3 I've given it for testing.

GlyphTheWolf

Hi,

You set bulletDamage for your created instance and in your player collision you create new instance, so it have default value again.

To achieve what you want you need either edit your PackedScene (you probably preload to bulletPath) if you want to change damage of all bullets you create or more desirably just read bulletDamage from exact instance of your bullet which hit player.

To do second thing lets assume your bullet is structured as below: - Bullet (KinematicBody with script) - CollisionShape - etc.

Then you need to use method on your player like:

func _on_HurtBox_body_entered(body):
   if("bulletDamage" in body):
    var damage = body.bulletDamage
    #deal damage here

Important here is to use "body_entered" signal to get exactly object with script attached. If you use "area_entered" you will receive area object and it won't work as expected until you have script with bulletDamage attached to your bullet area.

ItamiToShi

Thank you very much that works great. :)

ItamiToShi

I'm not seeing the option to set GlyphTheWolf's reponse as the answer to my question, but this issue is resolved now, thanks to GlyphTheWolf. :)

Megalomaniak

I've switch the topic type from discussion to question. You should be able to mark a post as an accepted answer now.