F4 to hide GUI

src/net/torvald/terrarum/modulebasegame/IngameRenderer.kt

@@ -391,8 +391,10 @@ object IngameRenderer : Disposable {
             batch.shader = null
             batch.color = Color.WHITE
 
-            uiContainer?.forEach {
-                it?.render(batch, camera)
+            if (!KeyToggler.isOn(Input.Keys.F4)) {
+                uiContainer?.forEach {
+                    it?.render(batch, camera)
+                }
             }
         }
 

src/net/torvald/terrarum/modulebasegame/TitleScreen.kt

@@ -258,6 +258,8 @@ class TitleScreen(batch: FlippingSpriteBatch) : IngameInstance(batch) {
     override fun show() {
         printdbg(this, "show() called")
 
+        KeyToggler.forceSet(Input.Keys.F4, false)
+
         initViewPort(App.scr.width, App.scr.height)