update

animation_movebone/Sources/lnx/MoveBoneIK.hx

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+package lnx;
+
+import iron.object.BoneAnimation;
+
+// Moving a bone - inverse kinematics
+class MoveBoneIK extends iron.Trait {
+
+	public function new() {
+		super();
+
+		iron.Scene.active.notifyOnInit(function() {
+
+			// Fetch armature animation
+			var anim = cast(object.children[0].animation, BoneAnimation);
+			// Fetch bone
+			var bone = anim.getBone("mixamorig:LeftHandIndex4");
+			// Fetch goal
+			var tr = iron.Scene.active.getChild("Goal").transform;
+			var goal = new iron.math.Vec4();
+
+			anim.notifyOnUpdate(function() {
+				goal.set(tr.worldx(), tr.worldy(), tr.worldz());
+				// Align skeleton to touch the goal
+				anim.solveIK(bone, goal);
+			});
+		});
+	}
+}