[SOLVED] speed increase only when button is pressed(touch)

Unity Engine
1

I want to increase object’s speed only when the button is pressed(touched), it should come back to normal speed when the button is not pressed(touched).

transform.Translate(direction * Time.deltaTime * speed);

I tried this;

public void SpeedUp()
{
speed * 10;
}

and added this to the button. Speed is increasing when the button is pressed but not coming back to normal when button is left.

2

You’re going to have to show more code. Right now what you show doesn’t actually do anything. Speed doesn’t increase there. You’re doing a simple math problem but not assigning the value back to speed.

Don’t forget to use code tags! Using code tags properly - Unity Engine - Unity Discussions

3 
public bool fingerHold = false;
public Vector2 startPos;
public Vector2 endPos;
public float speed = 1f;
public void Update() {
        PlayerMove ();
    }
void PlayerMove(){
      
        if (Input.touchCount > 0)
        {
            Touch touch = Input.GetTouch(0);
            if (touch.phase == TouchPhase.Began)
            {
                startPos = touch.position;
                endPos = touch.position;
                fingerHold = true;
            }
            else if (touch.phase == TouchPhase.Moved)
            {
                endPos = touch.position;
            }
            else if (touch.phase == TouchPhase.Ended)
            {
                fingerHold = false;
            }
        }
        if (fingerHold)
        {
            float deltaX = endPos.x - startPos.x;
            float deltaY = endPos.y - startPos.y;
            Vector2 direction = new Vector2(deltaX, deltaY).normalized;
            transform.Translate(direction * Time.deltaTime * speed);
        }
//This is what I have assigned to the SpeedUp button
public void SpeedUp(){
        speed = speed * 20;
    }
4

So, it looks like you have the right idea going. Right now I don’t see you calling SpeedUp, so your speed isn’t going to increase.

So, you just need to apply speedUp somewhere, and then if you want a complete return to 1f, you could do that in TouchPhase.Ended. If you want to reduce over time, you could have a speedDown method that also makes sure that you never go below 1f. That will handle it for you.

5

That SpeedUp function is assigned to a button UI and it’s working when that button is pressed. And for button we don’t use touch.phase. It works without doing that.

6

You could try changing from assignment to the button event to using the IPointerDown/IPointerUp interfaces.
Set speed up & down on those.
As @Brathnann mentioned, you could use a slowdown routine if you’d like, also.

This may require that you check that your touch isn’t hitting the button for your other calculations.

7

Here is the solution for this problem.

http://answers.unity3d.com/questions/1392721/speed-increase-only-when-button-is-pressedtouch.html?childToView=1394474#comment-1394474

8

That’s what I said? :slight_smile: heh. Glad ya got it working.