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Question by killfast27 · Feb 07, 2015 at 06:18 PM · collisionplayer damagehealth-deduction

When player touches this collider then health is subtracted

So i have a "health" script and I'm not sure if it's made in a weird way or not, but that isn't the question.

I want to make it so if the player comes into contact with another object it loses a certain amount of health (kind of like a Super Mario turtle in a way) my "health" script looks like this.

 var player : GameObject;
 var health = 1000;
 
 function Start()
 {
 
 }
 
 function Update()
 {
     if(health <= 0)
     {
         Debug.log("you are dead");
         Destroy(player);
     }
     
     if(health >= 1000)
     {
         health = 1000;
     }
 }


How would you recommend creating the other script on another object that can find the health script on the player and subtract health?

thank you :)

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Answer by Graham-Dunnett · Feb 07, 2015 at 06:18 PM

Read: http://docs.unity3d.com/Manual/ControllingGameObjectsComponents.html ???

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avatar image killfast27 · Feb 07, 2015 at 10:09 PM 0
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Thanks that seems like it will work, but I've run into a problem while trying to subtract the value of 100 from my health value which is set to 1000. When i use

 function OnCollisionStay2D(coll: Collision2D)
 {
     if(coll.gameObject.tag == "Enemy")
        {
            health - 100;
        }
 }


i get an error that states "Expressions in statements must only be executed for their side-effects." I have the health set as a value of 1000. I don't know what this means and how I should go about solving this. Any recommendations?

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