koobas.hobune.stream
NullReferenceException using Matrix4x4?
I'm having a error with Matrix4x4, I use this code for automatic GUI position correction on different aspect changes:
private var scale : Vector3;
function OnGUI (){
var scale : Vector3;
scale.x = Screen.width/originalWidth; // calculate hor scale
scale.y = Screen.height/originalHeight; // calculate vert scale
scale.z = 1;
var svMat = GUI.matrix; // save current matrix
GUI.matrix = Matrix4x4.TRS(Vector3(0,0,0), Quaternion.identity, scale); // substitute matrix - only scale is altered from standard
var BulletsGUI = Bullets;
var MagGUI = Clip;
var BulletsW : String = "Ammo:";
var BSlash : String = "/";
GUI.skin = guiSkin;
GUI.Label( Rect (25, 40, 800, 600), BulletsW.ToString());
GUI.Label( Rect (85, 40, 800, 600), BulletsGUI.ToString());
GUI.skin = guiSkinSmall;
GUI.Label( Rect (100, 40, 800, 600), BSlash.ToString());
GUI.Label( Rect (115, 40, 800, 600), MagGUI.ToString());
//GUI.Label( Rect (x, y, ?, ?), name.ToString());
GUI.matrix = svMat; // restore matrix
}
But then I get this error: NullReferenceException: Object reference not set to an instance of an object UnityEngine.GUI.set_matrix(Stuff)
The error points here:
GUI.matrix = Matrix4x4.TRS(Vector3(0,0,0), Quaternion.identity, scale); // substitute matrix - only scale is altered from standard
Any help?
You're probably using integer division with scale.x and scale.y, which is not what you want, since those are probably becoming 0, which isn't a valid number to use for the scale in this function. (Also, just so you know, you don't need to use ToString with variables that are already strings.)
So how would I go about fixing that? $$anonymous$$inda stuck.
You mean the integer division? Just don't use integers for at least one of the variables involved in the division.
I fixed it, a real stupid coding mistake by me. used OnGUI(); in my update functions, caused the error. Forgot to take all those out.
try 'new'
Matrix4x4.TRS(new Vector3(0,0,0), Quater
or better yet
Matrix4x4.TRS(Vector3.zero, Quater
Unityscript doesn't need "new"; it's implicit. Even if it did, that's not the error message you'd get.
