Touch Controls to make an object interested in another object

Question

OK, so I am working on a mobile game idea and yes I am pretty new to programming, but I want to learn!

Anyways I have this game where a character will follow another but I want the character to lose interest in following over time and have the player tap the character to keep it interested in following.

Maybe this is just way out of my understanding, but hey figure I would give it a shot!

So far here is my code for the character to notice another character near it and begin following it:

using System.Collections; using System.Collections.Generic; using UnityEngine;

public class Follow : MonoBehaviour {

 public Transform player;

 // Use this for initialization
 void Start () {
     
 }
 
 // Update is called once per frame
 void Update ()
 {
     if(Vector3.Distance(player.position, this.transform.position) < 10) // 10 is the distance before noticing.
     {
         Vector3 direction = player.position - this.transform.position;
         direction.y = 0;

         this.transform.rotation = Quaternion.Slerp(this.transform.rotation,
                                     Quaternion.LookRotation(direction), 0.1f);

         if(direction.magnitude > 5)
         {
             this.transform.Translate(0, 0, 0.05f);
         }

     }
     
 }

}

Answer 1

Your follow code is written well for a new programmer :)

Tested this and it worked. Also added a little cooldown feature. If anything's unclear feel free to ask! Cheers

 public class Follow : MonoBehaviour {
 
     public Transform player;
 
     enum CharacterStates {
         INTERESTED,
         NOT_INTERESTED,
         COOL_DOWN
     }
 
     // track the character interested state
     CharacterStates _characterState = CharacterStates.NOT_INTERESTED;
 
     // Timer for keeping track of how long the character has been interested
     float _interesetedTimer;
     // the time before the character loses interest
     public float loseInteresetThreshold = 10f;
 
     void Update() {
         switch (_characterState) {
             case CharacterStates.NOT_INTERESTED:
                 // If the character is not interested and the distance between it and the player is 10, it changes the state to interested
                 if (Vector3.Distance(transform.position, player.position) < 10f) {
                     _characterState = CharacterStates.INTERESTED;
                 }
                 break;
             case CharacterStates.INTERESTED:
                 // our character is now interested  and will follow the player, the 'interest' timer starts running
                 _interesetedTimer += Time.deltaTime; // add the time since the last frame to our timer
 
                 // check if we're over the intereseting time threshold
                 if (_interesetedTimer < loseInteresetThreshold) {
                     // If not, we update the character position and rotation
                     Vector3 direction = player.position - transform.position;
                     // only do this if there is no terrain height difference
                     direction.y = 0;
 
                     this.transform.rotation = Quaternion.Slerp(transform.rotation, Quaternion.LookRotation(direction), 0.1f);
 
                     if (direction.magnitude > 5) {
                         this.transform.Translate(0, 0, 0.05f);
                     }
                 } else {
                     // The interested time limit has been reached!
                     // Reset the timer
                     _interesetedTimer = 0;
 
                     // Go to interest cooldown mode
                     StartCoroutine("CoolDownInterest");
                 }
                 break;
         }
     }
 
     // Cooldown Ienumator
     IEnumerator CoolDownInterest() {
         // Character is on interest cooldown now
         _characterState = CharacterStates.COOL_DOWN;
         // Wait for 5 seconds -> cooldownTime and then reset character state to 'not interested'
         yield return new WaitForSeconds(5f);
         _characterState = CharacterStates.NOT_INTERESTED;
     }
 
     // The method to re-awaken the character's interest i.e. when you tap it
     // This used to be OnCharacterTapped
     void OnMouseDown() {
         // only execute if the character was interested or is on interest cooldown
         if(_characterState == CharacterStates.INTERESTED || _characterState == CharacterStates.COOL_DOWN) {
             //Only re-enable if the character is still within range
             if (Vector3.Distance(transform.position, player.position) < 10f) {
                 // stop the cooldown if there is any running
                 StopCoroutine("CoolDownInterest");
                 // reset the interested timer
                 _interesetedTimer = 0;
                 _characterState = CharacterStates.INTERESTED;
             }            
         }
     }
 }

Touch Controls to make an object interested in another object

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