koobas.hobune.stream
Drawing a box from a button click
For the life of me, I can't work out why this isn't working, the button should draw a box when it's clicked, but it isn't working?
Any ideas?
using UnityEngine;
using System.Collections;
public class Gui : MonoBehaviour {
void OnGUI() {
var boxcheck1 = false;
if (GUI.Button(new Rect(250, 700, 90, 20), "Campaign")){
boxcheck1 = true;
Debug.Log("boxcheck1 = true");
}
if (boxcheck1 == true)
{
GUI.Box(new Rect(10, 10, 800, 600), "");
}
}
}
Best Answer
GUI.Button() only returns true for a single frame (on the mouse up). Your variable 'boxcheck1' is local OnGUI() so it gets reset to false each time OnGUI() is called. So you box does show...for a single frame (which is too fast to see). One fix is to move 'boxcheck1' outside of OnGUI():
using UnityEngine;
using System.Collections;
public class Gui : MonoBehaviour {
bool boxcheck1 = false;
void OnGUI() {
if (GUI.Button(new Rect(250, 700, 90, 20), "Campaign")){
boxcheck1 = true;
Debug.Log("boxcheck1 = true");
}
if (boxcheck1 == true) {
GUI.Box(new Rect(10, 10, 800, 600), "");
}
}
}
OnGUI() gets called multiple times per frame, once for each event that happens. In only one of these calls will boxcheck1 be true.
