Spawning more enemies during gameplay

We are going to spawn new enemies in the level periodically so that the game can continue if the player destroys the first few enemies, and if they are too slow to defeat enemies, then the difficulty will gradually increase.

Creating the BP_EnemySpawner blueprint

We will create a blueprint that will spawn enemies in random locations in the level. The time between spawns is determined by a variable called SpawnTime. There is another variable called MaxEnemies that limits the spawning of enemies.

Follow these steps to create the blueprint:

1. In the content browser, access the Content > FirstPersonBP > Enemy folder. Click the Add button and choose the Blueprint Class option.
2. On the next screen, choose Actor as the parent class. Name the blueprint BP_EnemySpawner and double-click it to open the Blueprint Editor.
3. In the Variables category of the My Blueprint panel, click the + button to add a variable, and name it SpawnTime...