Lesson 2.3 - Random Animal Stampede

​Create a spawn manager

  1. In the Hierarchy, create an Empty object called “SpawnManager”
  2. Create a new script called “SpawnManager”, attach it to the Spawn Manager, and open it
  3. Declare new public GameObject[ ] animalPrefabs;
  4. In the Inspector, change the Array size to match your animal count, then assign your animals by dragging them from the Project window into the empty slots Note: Make sure you drag them from the Project window; not the Hierarchy! If you're going to spawn objects, you need to make sure you're using Prefabs, which are stored in the Project window.

​Spawn an animal if S is pressed

  1. In Update(), write an if-then statement to instantiate a new animal prefab at the top of the screen if S is pressed
  2. Declare a new public int animalIndex and incorporate it in the Instantiate call, then test editing the value in the Inspector

​Spawn random animals from array

  1. In the if-statement checking if S is pressed, generate a random int animalIndex between 0 and the length of the array
  2. Remove the global animalIndex variable, since it is only needed locally in the if-statement ​

​Randomize the spawn location

  1. Replace the X value for the Vector3 with Random.Range(-20, 20), then test
  2. Within the if-statement, make a new local Vector3 spawnPos variable
  3. At the top of the class, create private float variables for spawnRangeX and spawnPosZ

​Change the perspective of the camera

  1. Toggle between Perspective and Isometric view in Scene view to appreciate the difference
  2. Select the camera and change the Projection from “Perspective” to “Orthographic”