AI Damage if touched

Questions & Answers
1

How can you make an AI character cause damage to the player if it touches it.

If needed my health script is:

var healthdead : Texture2D; //dead
var health1 : Texture2D; //one hit left
var health2 : Texture2D; //two hits left
var health3 : Texture2D; //three hits left
var health4 : Texture2D; //four hits left
var health5 : Texture2D; //five hits left
var health6 : Texture2D; //six hits left
var health7 : Texture2D; //seven hits left
var health8 : Texture2D; //eight hits left
var health9 : Texture2D; //nine hits left
var health10 : Texture2D; //ten hits left
var health11 : Texture2D; //eleven hits left
var health12 : Texture2D; //twelve hits left
var health13 : Texture2D; //thirteen hits left
var health14 : Texture2D; //fourteen hits left
var health15 : Texture2D; //fifteen hits left
var health16 : Texture2D; //sixteen hits left
var health17 : Texture2D; //seventeen hits left
var health18 : Texture2D; //eighteen hits left
var health19 : Texture2D; //nineteen hits left
var health20 : Texture2D; //twenty hits left
var health21 : Texture2D; //twenty one hits left
var health22 : Texture2D; //twenty two hits left
var health23 : Texture2D; //twenty three hits left
var health24 : Texture2D; //full health

static var LIVES = 24;

function Update () 
{
	switch(LIVES)
	{
		case 24:
			guiTexture.texture = health24;
		break;
			
		case 23:
			guiTexture.texture = health23;
		break;
			
		case 22:
			guiTexture.texture = health22;
		break;
			
		case 21:
			guiTexture.texture = health21;
		break;
			
		case 20:
			guiTexture.texture = health20;
		break;
		
		case 19:
			guiTexture.texture = health19;
		break;
		
		case 18:
			guiTexture.texture = health18;
		break;
		
		case 17:
			guiTexture.texture = health17;
		break;
			
		case 16:
			guiTexture.texture = health16;
		break;
		
		case 15:
			guiTexture.texture = health15;
		break;
			
		case 14:
			guiTexture.texture = health14;
		break;
			
		case 13:
			guiTexture.texture = health13;
		break;
			
		case 12:
			guiTexture.texture = health12;
		break;
			
		case 11:
			guiTexture.texture = health11;
		break;
		
		case 10:
			guiTexture.texture = health10;
		break;
			
		case 9:
			guiTexture.texture = health9;
		break;
			
		case 8:
			guiTexture.texture = health8;
		break;
			
		case 7:
			guiTexture.texture = health7;
		break;
			
		case 6:
			guiTexture.texture = health6;
		break;
			
		case 5:
			guiTexture.texture = health5;	
		break;	
			
		case 4:
			guiTexture.texture = health4;
		break;	
			
		case 3:
			guiTexture.texture = health3;
		break;
				
		case 2:
			guiTexture.texture = health2;
		break;
		
		case 1:
			guiTexture.texture = health1;
		break;
			
		case 0:
			//gameover script here
		break;
	}
}
2

You could use a trigger object childed to the enemy; when the player enters this trigger, you can reduce its health in the player script, since OnTrigger events are sent to both, the trigger and the object that entered it.

Child an object of suitable shape (cube, sphere, capsule etc.) to the enemy, adjust its dimensions, disable the Mesh Renderer to make it invisible, set Is Trigger true and tag this object as “Enemy” (for instance). In the player’s script, add the code below:

function OnTriggerEnter(col: Collider){
    if (col.tag == "Enemy"){ // verify if it's the enemy trigger
        HealthScript.LIVES--; // supposing the script above is HealthScript.js
    }
}