diff --git a/src/Utils/rect.js b/src/Utils/rect.js
index dd201e1..233685f 100644
--- a/src/Utils/rect.js
+++ b/src/Utils/rect.js
@@ -9,3 +9,18 @@ function Rect (x1, y1, x2, y2) {
     this.x2 = x2 || 0;
     this.y2 = y2 || 0;
 }
+
+Rect.prototype.getCenter = function () {
+    return {
+        x: (this.x1 + this.x2) / 2,
+        y: (this.y1 + this.y2) / 2
+    };
+};
+
+Rect.prototype.getWidth = function () {
+    return Math.abs(this.x2 - this.x1);
+};
+
+Rect.prototype.getHeight = function () {
+    return Math.abs(this.y2 - this.y1);
+};
\ No newline at end of file