update

ui_canvas/Sources/lnx/CanvasTrait.hx

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+package lnx;
+
+import iron.Scene;
+import iron.App;
+import iron.system.Time;
+import leenkx.system.Event;
+import leenkx.trait.internal.CanvasScript;
+
+class CanvasTrait extends iron.Trait {
+	
+	var canvas:CanvasScript;
+	var clicks = 0;
+
+	public function new() {
+		super();
+
+		notifyOnInit(function() {
+			// Get canvas attached to scene
+			canvas = Scene.active.getTrait(CanvasScript);
+
+			// Notify on button click
+			Event.add("buttonEvent", onEvent);
+			Event.add("toggleMenu", onToggleMenu);
+
+			canvas.notifyOnReady(function() {
+				notifyOnUpdate(update);
+			});
+		});
+	}
+
+	function onEvent() {
+		// Set butotn text
+		canvas.getElement("MyButton").text = Std.string(++clicks);
+	}
+
+	function onToggleMenu() {
+		var shape = canvas.getElement("Shape");
+		shape.visible = !shape.visible;
+	}
+
+	function update() {
+		// Canvas may be still being loaded
+		if (!canvas.ready) return;
+
+		// Set text
+		canvas.getElement("MyText").text = "Hello world";
+
+		// Move image
+		var img = canvas.getElement("MyImage");
+		var center = App.w() / 2 - img.width / 2;
+		img.x = center + Math.sin(Time.time()) * 100;
+		img.rotation = canvas.getHandle("Check").selected ? Math.PI / 4 : 0;
+	}
+}