Return null instead of false.

src/plugins/weapon/WeaponPlugin.js

@@ -707,13 +707,13 @@ Phaser.Weapon.prototype.trackPointer = function (pointer, offsetX, offsetY) {
 * @param {Phaser.Sprite|Phaser.Point|Object} [from] - Optionally fires the bullet **from** the `x` and `y` properties of this object. If set this overrides `Weapon.trackedSprite` or `trackedPointer`. Pass `null` to ignore it.
 * @param {number} [x] - The x coordinate, in world space, to fire the bullet **towards**. If left as `undefined` the bullet direction is based on its angle.
 * @param {number} [y] - The y coordinate, in world space, to fire the bullet **towards**. If left as `undefined` the bullet direction is based on its angle.
-* @return {Phaser.Bullet} The fired bullet if successful, null otherwise.
+* @return {Phaser.Bullet} The fired bullet, if a launch was successful, otherwise `null`.
 */
 Phaser.Weapon.prototype.fire = function (from, x, y) {
 
     if (this.game.time.now < this._nextFire || (this.fireLimit > 0 && this.shots === this.fireLimit))
     {
-        return false;
+        return null;
     }
 
     var speed = this.bulletSpeed;
@@ -922,7 +922,9 @@ Phaser.Weapon.prototype.fire = function (from, x, y) {
             this.onFireLimit.dispatch(this, this.fireLimit);
         }
     }
+
     return bullet;
+
 };
 
 /**