Spawning enemies help with instantiation script(partially complete just a tweak)

Unity Engine
1

Ok so I followed a tutorial on how to spawn enemies and instantiating them, BUT the way it works is: I create an empty game object to attach my spawn script to, then I give the spawn points coordinates (inside the script). If I need another spawn point I need to create another script and name it something else… What I am trying to do is just keep it to 1 script if I have multiple places for enemies to spawn. So if you understood I am trying to make my script automatically pick up my gameobjects coordinates automatically (so the script is affected by the object its attached to…) is this possible or do I need to keep on creating spawnpointscriptA spawnpointscriptB etc?
Also…
I know I am asking for a lot but this is things I have no knowledge of and I need help:$ So on a side note I know you can call random… so if I have 3 different objects and want to spawn them randomly how do I do that? so for example atm I am spawning a car, I want to be able to spawn either a car a motorbike or a van (do not care about the probability if its equal chance should be okay:)).

I hope you guys understand what I am trying to achieve:o
Here is my script

#pragma strict
var cube : GameObject;
var spawn_position;
var timer = 0.0;

function spawn_cube () 
{
spawn_position = Vector3(16.5,9.4,-139);

var temp_spawn_cube = Instantiate(cube, spawn_position, Quaternion.identity);
}



function Start () 
{

}

function Update () 
{
	timer += Time.deltaTime;
	if(timer>6)
			{
				spawn_cube();
				timer = 0.0;
			}
}

Sorry for being an A-hole but there is 1 thing I couldnt fix and it came up when I started using instantiate. my models appear the wrong way around. The objects I spawn are prefabs of 3d car models, so when my car spawns depending on the model I download I might get a car coming in reverse or sideways or correctly… I tried to rotate the model I tried rotating in script but nothing seems to change this:O

Any help on any of the above problems is very well appreciated thank you so much:)

2

Instead of setting spawn_position to a new vector, have you tried setting it to gameObject.transform.position?

The random choice can be done by using Random.value to get a float between 0 and 1. You can then use an if … else statement to instantiate the right prefab depending on where the number falls in the range.

3

Yes u can do all that with one (same) script on different Objs.

For Instantiating more than one obj random, I would go with an array and an int index for Random.Range.

If you check in the doc’s you will find some example on the subjects.

4

could you possibly point me to the right direction?

5

Hi

I believe that this might be what @Black Mantis wants you have a look at:

Random.Range - Description: Returns a random float number between and min [inclusive] and max [inclusive] (Read Only).