How to add limited player movement on grid?

Question

My game is gridbased and only allows vertical and horizontal movement.

I want to be able to make it so the player is given a certain number of moves and when that hits 0, it's game over.

I was told that making a timer variable that goes up everytime the player moves and once it reaches a certain number it disables the move key. But I'm very new to unity and I can't seem to figure this out.

{ public float moveSpeed = 5f;

 public Transform movePoint;
 public LayerMask whatStopsMovement;
 public Animator anim;

     // Start is called before the first frame update
     void Start()
 {
     movePoint.parent = null; // lets the Transform keep its local orientation rather than its global orientation
     count = PlayerPrefs.GetInt("score", 1);
 }

 // Update is called once per frame
 bool isCanMove = true;
 void Update()
 {
     transform.position = Vector3.MoveTowards(transform.position, movePoint.position, moveSpeed * Time.deltaTime);
     if (Vector3.Distance(transform.position, movePoint.position) <= .05f)
     {
         if (Mathf.Abs(Input.GetAxisRaw("Horizontal")) == 1f && isCanMove)

         {
             if (isCanMove && Input.GetButtonDown("Horizontal"))

             {
                 if (!Physics2D.OverlapCircle(movePoint.position + new Vector3(Input.GetAxisRaw("Horizontal"), 0f, 0f), .2f, whatStopsMovement))
                 {
                     movePoint.position += new Vector3(Input.GetAxisRaw("Horizontal"), 0f, 0f);
                     isCanMove = false;
                     StartCoroutine(WaitBeforeMove());
                 }
             }
         }
         else
         if (Mathf.Abs(Input.GetAxisRaw("Vertical")) == 1f && isCanMove)
         {
             if (isCanMove && Input.GetButtonDown("Vertical"))
             {
                 if (!Physics2D.OverlapCircle(movePoint.position + new Vector3(0f, Input.GetAxisRaw("Vertical"), 0f), .2f, whatStopsMovement))
                 {
                     movePoint.position += new Vector3(0f, Input.GetAxisRaw("Vertical"), 0f);
                     isCanMove = false;
                     StartCoroutine(WaitBeforeMove());
                 }
             }
         }

         anim.SetBool("moving", false); // Checks whether the player is moving
     }
     else
     {
         anim.SetBool("moving", true);
     }
 }
 IEnumerator WaitBeforeMove()
 {
     yield return new WaitForSeconds(0.5f); // Prevents user from holding down to move
     isCanMove = true;
 }

 public void OnTriggerEnter2D(Collider2D collider)
 {
     Debug.Log("Trigger!");
 }

}

Answer 1

Hello. The motion counter should be implemented like this:

     public float moveSpeed = 5f;
 
     public Transform movePoint;
     public LayerMask whatStopsMovement;
     public Animator anim;
 
     int countOfMoves; // Counter of the number of moves
     public int maxCountOfMoves = 10; // Maximum number of moves
 
     // Start is called before the first frame update
     void Start()
     {
         movePoint.parent = null; // lets the Transform keep its local orientation rather than its global orientation
         countOfMoves = 0; // At the start of the level, the player's number of moves is zero
     }
     // Update is called once per frame
     bool isCanMove = true;
     void Update()
     {
         transform.position = Vector3.MoveTowards(transform.position, movePoint.position, moveSpeed * Time.deltaTime);
         if (Vector3.Distance(transform.position, movePoint.position) <= .05f)
         {
             bool isRemainMoves = countOfMoves < maxCountOfMoves; // checking and writing to a variable whether there are moves left for the level
 
             if (Mathf.Abs(Input.GetAxisRaw("Horizontal")) == 1f && isCanMove && isRemainMoves)
             {
                 if (isCanMove && Input.GetButtonDown("Horizontal"))
                 {
                     if (!Physics2D.OverlapCircle(movePoint.position + new Vector3(Input.GetAxisRaw("Horizontal"), 0f, 0f), .2f, whatStopsMovement))
                     {
                         movePoint.position += new Vector3(Input.GetAxisRaw("Horizontal"), 0f, 0f);
                         countOfMoves++; // Increase counter
                         isCanMove = false;
                         StartCoroutine(WaitBeforeMove());
                     }
                 }
             }
             else
             if (Mathf.Abs(Input.GetAxisRaw("Vertical")) == 1f && isCanMove && isRemainMoves)
             {
                 if (isCanMove && Input.GetButtonDown("Vertical"))
                 {
                     if (!Physics2D.OverlapCircle(movePoint.position + new Vector3(0f, Input.GetAxisRaw("Vertical"), 0f), .2f, whatStopsMovement))
                     {
                         movePoint.position += new Vector3(0f, Input.GetAxisRaw("Vertical"), 0f);
                         countOfMoves++; // Increase counter
                         isCanMove = false;
                         StartCoroutine(WaitBeforeMove());
                     }
                 }
             }
             anim.SetBool("moving", false); // Checks whether the player is moving
         }
         else
         {
             anim.SetBool("moving", true);
         }
     }

In the comments in the code, I pointed out the meaning of the lines of code I added. Just replace the Update() and Start() functions and variable declarations with the code I added.

P.S. If you think the answer solved your problem, you can accept the answer.

Answer 2

Answer by unity_67380 · 3 days ago

Works perfectly, thanks Denis you are an absolute godsend.

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How to add limited player movement on grid?

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