Trying to spawn a random building from an array.

Unity Engine
1

Here’s my script so far:

var prefabToSpawn:Transform[ ];

var spawnTime:float;

var spawnTimeRandom:float;

private var spawnTimer:float;

function Awake()

{

ResetSpawnTimer();

}

function Update()

{

if(spawnTimer > 0)

{

spawnTimer -= Time.deltaTime;

if(spawnTimer <= 0.0)

{

spawnTimer = 0;

RandomBuilding ();

Instantiate(RandomBuilding.buildingToSpawn, transform.position, Quaternion.identity);

ResetSpawnTimer();

}

}

}

function ResetSpawnTimer()

{

spawnTimer = spawnTime + Random.Range(0, spawnTimeRandom*100)/100.0;

}

function RandomBuilding () {

var newBuilding = 0;

if (prefabToSpawn.length > 0){

newBuilding = Random.Range(0,prefabToSpawn.length);

var buildingToSpawn = prefabToSpawn[newBuilding];

}

}

2

easy fix… and please use code tags when posting code. :wink:

In your RandomBuilding funciton, you create a variable called buildingToSpawn. This variable is never passed from the function. The fix is easy as you just don’t have to run that function.

I also simplified the whole thing so you are not using extraneous functions.

var prefabToSpawn:Transform[];
var spawnTime:float;
var spawnTimeRandom:float;
private var spawnTimer:float;

function Awake(){
	spawnTimer = spawnTime + Random.Range(0, spawnTimeRandom*100)/100.0;
}

function Update(){
	if (prefabToSpawn.length == 0) return;
	if(spawnTimer <= 0.0){
		var buildingToSpawn = prefabToSpawn[Random.Range(0,prefabToSpawn.length)]; 
		Instantiate(buildingToSpawn, transform.position, Quaternion.identity);
		spawnTimer = spawnTime + Random.Range(0, spawnTimeRandom*100)/100.0;
	}
	spawnTimer -= Time.deltaTime;
}
3

Thanks!

How do you use code tags?