Organizing input actions in device folders

js/input/mouse/MouseTracking.js

@@ -0,0 +1,22 @@
+import Pointing from "./Pointing"
+
+export default class MouseTracking extends Pointing {
+
+    constructor(target, blueprint, options = {}) {
+        options.wantsFocusCallback = true
+        super(target, blueprint, options)
+
+        let self = this
+        this.mousemoveHandler = e => {
+            self.blueprint.entity.mousePosition = self.getLocation(e)
+        }
+    }
+
+    blueprintFocused() {
+        this.target.addEventListener("mousemove", this.mousemoveHandler)
+    }
+
+    blueprintUnfocused() {
+        this.target.removeEventListener("mousemove", this.mousemoveHandler)
+    }
+}