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Question by SHUTTER_CRY_GAMES · Mar 26, 2017 at 07:04 PM · 2d-platformerenemy aiontriggerenter2d

How do i make a simple 2D AI enemy?

I have a 2D game where, if you meet an enemy, the enemy will: check if you're in the trigger; calculate if you're left or right of the AI; move towards you.

My issue is: The AI will only follow my player if it has JUST entered the box collider. I want it to change constantly, so if you jump over the enemy, the enemy will readjust to move towards you (X axis only, which is intended). RIGHT NOW: The AI will only readjust if you leave and reenter the box collider.

How do i fix this, I've tried using 'while' but it crashes the engine as soon as i enter the collider.

Below is the main chunk of the code not including the variables that I've already stated.

 void Update()
     {
         enemyx = transform.position.x;
         playerx = player.transform.position.x;
     
 
     }
 
     void OnTriggerEnter2D(Collider2D colliderInfo)
     {
         if(colliderInfo.name == "player")
         {
             enemyx = transform.position.x;
             playerx = player.transform.position.x;
             
 
             if(enemyx > playerx)
             {
                 enemy.AddForce(enemyspeed*Time.deltaTime);
             }
             if(enemyx < playerx)
             {
                 enemy.AddForce(-enemyspeed*Time.deltaTime);
             }
             
 
         }
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