I'm working on recreating the board game "Hex" as a mobile game. I'm working on implementing zoom and pan features using two fingers. I feel like I managed to get the zoom to work, but the pan moves more than I want it to and I feel like it is because I'm missing something and must be somewhere in the conversion to World Space coordinates. if I could get some help it would be greatly appreciated.
For reference, oldMidpoint is initialized to 0 earlier on.
Touch touchA = Input.GetTouch(0);
Touch touchB = Input.GetTouch(1);
Vector3 midpoint = (touchA.position + touchB.position) / 2;
if(midpoint != oldMidpoint)
{
if(oldMidpoint == Vector3.zero)
oldMidpoint = midpoint;
Vector3 moveDistance = oldMidpoint - midpoint;
moveDistance.y = 0;
Camera.main.transform.Translate(moveDistance, Space.World);
oldMidpoint = midpoint;
}