touch input certain screen part

Questions & Answers
1

is it possible to detect a touch input within a certain screen part?

for example:

26451-sketchy.png
26451-sketchy.png353×600 30.1 KB

can i detect a swipe inside are A and a pinch inside zone B?

2

1.Create a Quad with a collider that fit to the touchable area as it facing the MainCamera. And turn off the Mesh Renderer.

  1. Use the following logic to implement the swiping gesture.

    bool isTouchableArea = false;

    	void Update() 
	{
		if (Input.touchCount > 0)
		{
			if(Input.GetTouch(0).phase == TouchPhase.Began)
			{
				Ray ray =  Camera.main.ScreenPointToRay(Input.GetTouch(0).position);
				//Debug.Log(ray.origin);
				
				RaycastHit hit;
				
				if(Physics.Raycast(ray,out hit))
				{
					//Debug.Log("Ray Catsed");
					if(hit.collider!=null && hit.collider.name=="Quad")
					{
						//Debug.Log(hit.collider.name);
						isTouchableArea = true;
						
					}
					
				}
				else
				{
					isTouchableArea = false;
				}
				
			}
			
			
			if(isTouchableArea && Input.GetTouch(0).phase == TouchPhase.Moved)
			{
				Vector2 touchDeltaPosition = Input.GetTouch(0).deltaPosition;
				Debug.Log(touchDeltaPosition);

				rigidbody.velocity = touchDeltaPosition;
			}
			
			
		}
		
		                              
	}