BitmapData.rect provides a quick way to draw a Rectangle to a BitmapData.

Author: photonstorm

src/gameobjects/BitmapData.js

@@ -854,6 +854,28 @@ Phaser.BitmapData.prototype = {
 
     },
 
+    /**
+    * Draws a filled Rectangle to the BitmapData at the given x, y coordinates and width / height in size.
+    *
+    * @method Phaser.BitmapData#rect
+    * @param {number} x - The x coordinate of the top-left of the Rectangle.
+    * @param {number} y - The y coordinate of the top-left of the Rectangle.
+    * @param {number} width - The width of the Rectangle.
+    * @param {number} height - The height of the Rectangle.
+    * @param {string} [fillStyle] - If set the context fillStyle will be set to this value before the rect is drawn.
+    */
+    rect: function (x, y, width, height, fillStyle) {
+
+        if (typeof fillStyle !== 'undefined')
+        {
+            this.context.fillStyle = fillStyle;
+        }
+
+        this.context.fillRect(x, y, width, height);
+        this.context.fill();
+
+    },
+
     /**
     * Draws a filled Circle to the BitmapData at the given x, y coordinates and radius in size.
     *