This is the base project for the TinyMob Techniques for Prototyping Game AI workshop for Startup Slam v2.0.
The main scene for Smashteroids is Game.unity. The main game managers are all singletons so they can be easily accessed within the scene. The important managers for this workshop are Tweakables and EnemyManager.
This manager contains data about game objects that can easily be tweaked. The goal of this manager is to provide one place to change values while testing and tweaking how game objects behave. For this workshop we've added tweakable base stats for the player ship and enemy ships.
This manager controls how enemy ships spawn. It is set up to spawn ships in continuous waves. The base values are controlled by public variables for wave frequency, the minimum time to wait between spawning new waves and what enemy ships to spawn.
If you look in EnemyShipManager.cs at the coroutine "BeginEnemyWaves" you will see that it spawns a new wave of enemies every time the player either destroys the previous wave or the minimum wave time has elapsed. Currently it calls SpawnSimpleNormalEnemyWave() to simply spawn one dumb enemy ship in every wave. But if you comment that out and replace it with SpawnNewNormalEnemyWave() it will progressively spawn a larger random selection of enemy ship types for each wave.
Play around with the values and code in here to change how enemy ships spawn.
Each enemy ship is constructed as a Prefab. Each of these has an EnemyShip.cs component and an implementation of EnemyShipBaseAI.cs component.
EnemyShip.cs controls one Enemy Ship. It keeps track of how much damage the ship receives, what it collides with, and it determines when the ship dies. It also calls the ship's AI brain once per frame.
EnemyShipBaseAI.cs is an abstract class that controls how an enemy ship behaves. As an abstract class it has some virtual functions that can be overridden if necessary, and it also has some abstract functions that must be implemented.
The main Brain() loop first does a Think(), then a Move() and finally a Shoot() function call. This basic structure controls how the enemy ship will behave.
Play around with different values and implementations of this base class to change how enemies act in the game.