koobas.hobune.stream
Screen width to world coordinates
Hello =) I know it's easy question, but i couldn't solve it :( I want to randomly spawn enemies on top of the screen, depending on resolution, smth like:
transform.position.x = Random.range(0,Screen.width);
but it's all bullshit. Show me the way please (:
One way is to use Viewport coordinates. Viewport coordinates go from (0,0) in the lower left of the screen to (1,1) in the upper right. In order to make a conversion, you should decide on the distance in front of the camera. For a perspective camera the width of the screen in world units varies with the distance from the camera. For Orthographic, you only have to worry about layering.
So say you want a random position at 10 units in front of the camera;
var pos = Camera.main.ViewportToWorldPoint(Random.value, 1.0, 10.0);
'pos' will be right along the top edge of the window. You could then assign the 'x' to your position (or assign pos to transform.position):
transform.position.x = pos.x;
