how can i help collision deduct number ?

[Strom_555]

hi i need help i am a beginner how do i set an object to subtract a number when i touch a certain object in a collision?

[djaydino]

Hi.
are you colliding with another object or when you touch with your finger (on screen)

if object you can use collision(2D) event and on collision Enter you can subtract.

[Strom_555]

thanks for the reply, i am using 3d and this is a photo but it does not work

[djaydino]

Hi.
Does 1 of the objects have a rigidbody?

are both objects not set as triggers?

if set as trigger then you need to use trigger event.

[Strom_555]

yes the crowbar has a rigidbody, if they both have triggers I don't know, should it be like this? thank you for answer

[djaydino]

Hi.
If one of the objects Collider is set as trigger then you need to use trigger events.

on the image i can see that the 'Tag' is empty

also double check the Project Settings/Physics/Layer Collision Matrix if the layer of the 2 objects can detect collision