Fix null ref for this when _update is called.

2018-01-03 11:20:37 -08:00
parent 1c81ecd23f
commit 2b5f702bb6
2 changed files with 3 additions and 2 deletions
--- a/libs/core/buttons.ts
+++ b/libs/core/buttons.ts
@ -66,7 +66,7 @@ namespace brick {

        //% hidden
        _update(curr: boolean) {
-            if (curr === null) return
+            if (this == null) return
            if (this._isPressed == curr) return
            this._isPressed = curr
            if (curr) {