Creating collectable objects

Restricting the player from firing their gun when they run out of ammo forces the player to be considerate of the accuracy of the shots they attempt within the game. However, limiting ammo would be unduly punishing without a way of acquiring more. We don't want ammo to naturally recharge like our stamina meter. Instead, we'll create a collectable item to allow the player to regain ammo by exploring and traversing the level.

Setting up collection logic

To create a collectable item, we will first want to start a new Blueprint that will determine the properties of each instance of that object that appears in the world. To do so, navigate to the Content Browser of the editor and open the Blueprints folder. Add a new Blueprint class, choose the class type Actor, and name it AmmoPickup. Once the Blueprint is made, double click on AmmoPickup to open the Blueprint editor.

In the viewport window that appears, we will see a simple white sphere. This is the default...