void OnGUI()
{
// RTS selection function, mouse click then start draw selection area
if (mouseAreaSelec)
{
// Create a rect from both mouse positions
var rect = Utils_RTS_Draw.GetScreenRect(curMousPos, Input.mousePosition);
Utils_RTS_Draw.DrawScreenRect(rect, new Color(0.8f, 0.8f, 0.95f, 0.25f));
Utils_RTS_Draw.DrawScreenRectBorder(rect, 2, new Color(0.8f, 0.8f, 0.95f));
}
}
public static void DrawScreenRectBorder(Rect rect, float thickness, Color color)
{
// Top
Utils_RTS_Draw.DrawScreenRect(new Rect(rect.xMin, rect.yMin, rect.width, thickness), color);
// Left
Utils_RTS_Draw.DrawScreenRect(new Rect(rect.xMin, rect.yMin, thickness, rect.height), color);
// Right
Utils_RTS_Draw.DrawScreenRect(new Rect(rect.xMax - thickness, rect.yMin, thickness, rect.height), color);
// Bottom
Utils_RTS_Draw.DrawScreenRect(new Rect(rect.xMin, rect.yMax - thickness, rect.width, thickness), color);
}
// RTS selection function, judgement for selectable obj in or not in selction area from camera view angle
public bool IsWithinSelectionBounds(GameObject gameObject)
{
if (!mouseAreaSelec)
{
return(false);
}
var cam = playerCam;
var viewportBounds =
Utils_RTS_Draw.GetViewportBounds(cam, curMousPos, Input.mousePosition);
return(viewportBounds.Contains(
cam.WorldToViewportPoint(gameObject.transform.position))); // use bounds() search if obj is in selection area
}
