/// <summary>
///
/// </summary>
void EditorGUI()
{
if (!Application.isPlaying && Target != null && executeInEditMode)
{
Vector3 targetPoint = TargetPosition;
Plane plane = new Plane(Transform.forward, Transform.position);
float size = 4;
//If the object is behind the camera, then don't draw it
if (plane.GetSide(targetPoint) == false)
{
return;
}
//Calculate the 2D position of the position where the icon should be drawn
Vector3 viewportPoint = CameraComponent.WorldToViewportPoint(targetPoint);
//The viewportPoint coordinates are between 0 and 1, so we have to convert them into screen space here
Vector2 drawPosition = new Vector2(viewportPoint.x * Screen.width, Screen.height * (1 - viewportPoint.y));
float clampBorder = 12;
//Clamp the position to the edge of the screen in case the icon would be drawn outside the screen
drawPosition.x = Mathf.Clamp(drawPosition.x, clampBorder, Screen.width - clampBorder);
drawPosition.y = Mathf.Clamp(drawPosition.y, clampBorder, Screen.height - clampBorder);
GUI.color = Color.yellow;
GUI.DrawTexture(new Rect(drawPosition.x - size * 0.5f, drawPosition.y - size * 0.5f, size, size), Texture2D.whiteTexture, ScaleMode.StretchToFill);
GUI.color = Color.white;
}
}