RayCasting and Input.GetTouch?

Unity Engine
1

Below I have One RayCast that’s active at all times. My goal, is to “instantiate” raycasts whenever a touch screen command is triggered. The Raycast then hits whatever gameObject I desired it to. All the code below is to the best of my knowledge about RayCasting and it’s partial implementation for pc testing.Please help?

public static bool Right;
	public static bool Left;
	public static bool Jump;
	public static bool Action;
	
	void Update()
	{
		Ray ray = Camera.mainCamera.ScreenPointToRay(Input.mousePosition);
		Debug.DrawRay(ray.origin, ray.direction * 10, Color.red);
		RaycastHit hit;
		
		if (Physics.Raycast(ray, out hit) == true)
		{
			Debug.DrawRay(ray.origin, ray.direction * 10, Color.green);
			
			if (hit.transform.gameObject.name == "Right"  Input.GetMouseButton(0))
			{
				Right = true;
			}
			else if (hit.transform.gameObject.name == "Right"  Input.GetMouseButton(0) == false)
			{
				Right = false;
			}
			
			if (hit.transform.gameObject.name == "Left"  Input.GetMouseButton(0))
			{
				Left = true;
			}
			else if (hit.transform.gameObject.name == "Left"  Input.GetMouseButton(0) == false)
			{
				Left = false;
			}
		}
	}
}
2

Okay so I’ve been doing some studies on Input.Touch. I’m still fairly green at this. At this point I have a single RayCast emitting when I tap the screen. How can I emit multiple ray casts to press multiple controls at one time?

if (Input.touchCount > 0)
		{	
			if (Input.GetTouch(0).phase == TouchPhase.Began)
			{
				Ray ray = Camera.mainCamera.ScreenPointToRay(Input.GetTouch(0).position);
				Debug.DrawRay(ray.origin, ray.direction * 10, Color.red);
				RaycastHit hit;
				
				if (Physics.Raycast(ray, out hit) == true)
				{
					Debug.DrawRay(ray.origin, ray.direction * 10, Color.green);
					
					if (hit.transform.gameObject.name == "Right")
					{
						Right = true;
					}
					
					if (hit.transform.gameObject.name == "Left")
					{
						Left = true;
					}
				}
			}
		}
3

Hey guys, just wondering if anyone could provide some hints to me. I’m an aggressively eager learner and just need some guidance, thanks.

4

Well what you do is possible so what do you want help with?

5

Thank you for offering a hand BFGames.

At the current time, I’m play testing this script on my kindle fire. As you can see, I have two gameObjects that function as buttons. I can tap anywhere upon the screen and a RayCast is emitted. However, if I were to tap two fingers at one time (both of which on a separate button), only one function will be activated. This situation leads me to believe I need two RayCasts, but does that mean I need to apply a new RaycastHit?

6

You need two ray casts then yes. But at the moment you also only check for Input number [0], you also need to check for 1 then.