Random show objects (441324)

Unity Engine
1

I creat the 30 empty gameobject in different places.
I have cube and sphere.
Start game, I want to randomly the 10 of empty gameobject were in place show cube or sphere.
(Cube and Sphere location are empty gameobject)

I know “random.range” this script.
But this can only set a range, and can’t specify the location of objects.
What can i write the code? thanks!

2

this is just one method of many that you can use:

make your cube and sphere into prefabs .

create a script file call it something like globalCount.js or anything you like.

inside this script write a global variable to count the number of generated objects like this :
static var objectCount:int=0;

create another script call it generateObjects.js or something you like .

in it add this code :
var cubePrefab:gameObject;//set these in the inspector
var spherePrefab:gameObject;//set these in the inspector
var haveAnObject:boolean=false;
function Update()
{
if(globalCount.objectCount<10 !haveAnObject)
{
var rand=Random.Range(0,100);//to see if we should create an object
if(rand>50)
{
haveAnObject=true;
globalCount.objectCount +=1;
rand=Random.Range(0,100);//to see if we should make a cube or sphere
if(rand>50)
Instantiate (cubePrefab, transofrm.position, transform.rotation);
else
Instantiate (spherePrefab, transofrm.position, transform.rotation);

}
}
}

attach generateObjects.js to all your empty gameobjects

3

You can use arrays…
Here will be script:

var spawnPoints : Transform[];  // Array of spawn points to be used.
var enemyPrefabs : GameObject[]; // Array of different Enemies that are used.
var amountEnemies = 20;  // Total number of enemies to spawn.
var yieldTimeMin = 2;  // Minimum amount of time before spawning enemies randomly.
var yieldTimeMax = 5;  // Don't exceed this amount of time between spawning enemies randomly.

function Start(){
    Spawn();
}

function Spawn(){ 
   for (i=0; i<amountEnemies; i++){ // How many enemies to instantiate total
      yield WaitForSeconds(Random.Range(yieldTimeMin, yieldTimeMax));  // How long to wait before another enemy is instantiated.

      var obj : GameObject = enemyPrefabs[Random.Range(0, enemyPrefabs.length)]; // Randomize the different enemies to instantiate.
      var pos: Transform = spawnPoints[Random.Range(0, spawnPoints.length)];  // Randomize the spawnPoints to instantiate enemy at next.

	  Instantiate(obj, pos.position, pos.rotation); 
   } 
}
4

Thanks shaderx and badbii.
First I use shaderx’s method and I succeed.
my prefabs has cube and sphere, I want to create capsule and cylinder.
There are 4 objects in my prefabs.
How can i edit generateObjects.js?
except add…
var capsulePrefab:gameObject
var cylinderPrefab:gameObject

thanks a lot.

5

if you use badii script it would work automaticaly , in the inspector adjust the array enemyPrefabs size to 4 and attach your prefabs to each slot , of course you’ll have to set the positions too .

if you use my script you’d have to adjust the code a little .
change this :
if(rand>50)
Instantiate (cubePrefab, transofrm.position, transform.rotation);
else
Instantiate (spherePrefab, transofrm.position, transform.rotation);
to this:
if(rand>75)
Instantiate (cubePrefab, transofrm.position, transform.rotation);
else if(rand>50)
Instantiate (spherePrefab, transofrm.position, transform.rotation);
else if(rand>25)
Instantiate (capsulePrefab, transofrm.position, transform.rotation);
else
Instantiate (cylinderPrefab, transofrm.position, transform.rotation);

6

I edited before you answer
As below:

if(rand<=20)
Instantiate (coinA, transform.position, transform.rotation);
if(rand<=40 rand>20)
Instantiate (coinB, transform.position, transform.rotation);
if(rand<=60 rand>40)
Instantiate (coinC, transform.position, transform.rotation);
if(rand<=80 rand>60)
Instantiate (coinD, transform.position, transform.rotation);
if(rand<=100 rand>80)
Instantiate (coinPass, transform.position, transform.rotation);

It seems possible!?

7

About badbii script
I don’t understand yieldTimeMin and yieldTimeMax
My game has no use for time~
After start game, error is: Array index is out of range