You could do either of the following:
1. Create a mathematical model of the board, so that you could simply calculate the position based on some data. F.ex if you wanted to be at the beginning of the fourth square of a chess board you could do this: `float xPos = (4-1)/8 * Screen.width;`
2. If you know the pixel position of where you want to be you can simply map to screen coords mathematically: `screenPosX = Screen.width / image.width * imagePosX`. After you know screen x and y you can use [Camera.ScreenToWorldPoint][1] for generating a world coordinate from the screen coords.
Good luck!
[1]: http://docs.unity3d.com/Documentation/ScriptReference/Camera.ScreenToWorldPoint.html
↧