Community

Question

Ok so what i have is 2 seperate scenes. The actual "game scene" where you kill things and pickup points. I have it so that once you have picked up all the points in that scene you will go to the Shop Menu through Application.LoadLevel. In the shop menu right now there is 1 button which i am trying to make it so that the variable of the "shoot" script in the "game scene" that determines how far you shoot will be increased if you have enough points. I also want that increase to stay on future levels like an upgrade. The errors I am getting with the ShopMenu script is

Assets/Scripts/ShopMenu.js(15,34): BCE0020: An instance of type 'Points' is required to access non static member 'score'.

Assets/Scripts/ShopMenu.js(17,35): BCE0020: An instance of type 'shoot' is required to access non static member 'gunRange'.

My Shop Menu script is

function OnGUI () { GUI.Box (Rect (10,10,250,90), "Shop Menu");

if (GUI.Button (Rect (20,40,200,20), "Longer Range:   15 Points  ")) {

    Debug.Log ("Bought Longer Range");

    BuyRange();
}

}

function BuyRange() {

var points = gameObject.Find("Player").GetComponent(Points);

var pointsscore = Points.score;

var shootrange = gameObject.Find("TankTurret").GetComponent(shoot);

var shootingrange = shoot.gunRange;

    if (pointsscore >= 15) {

    shootrange.gunRange = 50;
}

}

The shoot script is

 var gunRange = 40; var bullet : Rigidbody; function Update () {  if (Input.GetKeyDown ("space"))  {  var clone : Rigidbody;  clone = Instantiate(bullet, transform.position, transform.rotation);  //Give the cloned bullet velocity along z axis  clone.velocity = transform.TransformDirection (Vector3.up * gunRange);

The Points script var score = 0;

function OnTriggerEnter ( other : Collider ) {  if (other.tag == "Points") {  score += 5;  Destroy (other.gameObject);  } }

function OnGUI (){ GUI.color = Color.red; GUI.Box (Rect(25,25,100,30), "Points: "+score); }

function Update () {

if (score==15) {
    loadShopMenu();
}

}

function loadShopMenu () {

yield WaitForSeconds(3);
    Application.LoadLevel(2);

Answer 1

I'm using static vars to hold things like points, lives, health etc. These variables are defined in a script called Control.js, and they may be accessed as Control.points, Control.health etc. This script is attached to my player (a FPS controller), and their static variables survive during the whole game:

static var gunRange: float = 100;

Another alternative is to keep these variables in a script assigned to an empty object, and include the DontDestroyOnLoad instruction in its Awake function:

var gunRange: float = 100;

function Awake () {
    DontDestroyOnLoad (transform.gameObject);
}

EDITED: If you want to use the static variable alternative, your scripts should look like below:

The ShopMenu.js script:

function OnGUI () { 

    GUI.Box (Rect (10,10,250,90), "Shop Menu");
    if (GUI.Button (Rect (20,40,200,20), "Longer Range:   15 Points  ")) {
       Debug.Log ("Bought Longer Range");
       BuyRange();
    }
}

function BuyRange() {

    if (Points.score>=15){ // if the player has enough points...
       shoot.gunRange = 50;  // buy the new range...
       Points.score -= 15;  // and subtract the points spent
    }
}

The shoot.js script:

var bullet : Rigidbody;
static var gunRange = 40;  // this variable may be accessed anywhere as shoot.gunRange

function Update () {

    if (Input.GetKeyDown ("space")) {
       var clone : Rigidbody;
       clone = Instantiate(bullet, transform.position, transform.rotation);
       //Give the cloned bullet velocity along z axis
       //(is it correct? the bullet will go the Up direction of the turret!)
       clone.velocity = transform.TransformDirection (Vector3.up * gunRange);
    }
}

The Points.js script:

    static var score = 0;  // this variable may be accessed as Points.score anywhere

    function OnTriggerEnter ( other : Collider ) { 

        if (other.tag == "Points") { 
           score += 5; 
           Destroy (other.gameObject); 
        } 
    }

    function OnGUI (){ 

        GUI.color = Color.red; GUI.Box (Rect(25,25,100,30), "Points: "+score); 
    }

    function Update () {

        if (score==15) {
           loadShopMenu();
        }
    }

    function loadShopMenu () {

        yield WaitForSeconds(3);
        Application.LoadLevel(2);
    }

Answer 2

0

if(points = 100) { uprange up = (Range).GetComponent("Range"); eh.uprange(+10); }

and in your ange class you should have

uprange + range = currange

answered Jul 09 '11 at 04:44 PM

Babilinski
119 ● 40 ● 42 ● 43

(comments are locked)

Answer 3

0

sorry im very new to coding and unity. What would my range class be. and im not sure how to read psuedocode. :P

answered Jul 09 '11 at 05:07 PM

Airmand
46 ● 3 ● 6 ● 7

if(points = 100) // your if block............................................................................................................ uprange up = (Range).GetComponent("Range")// replace "Range" with the code name that has the range in it........................................................................................................................................................ eh.uprange(+10); // this adjusts the value of uprange..........................................................................

in the script where you have the range int. you should have uprange + range = cur.range;

Jul 09 '11 at 05:20 PM Babilinski

i dont understand what uprange is

Jul 09 '11 at 05:32 PM Airmand

its a variable that i made up . exp.

your range is 5 then you go to the shop and you update your range buy 3 so

3 + 5 = currange AKA curent range

Jul 09 '11 at 05:37 PM Babilinski

im sorry i just really dont know how to read your pseudocode. What is cur.range supposed to be?

Jul 09 '11 at 05:47 PM Airmand

okay currange = a value that will change as the character gets more range. uprange = a value that will be the amount of range added to your currange after you have enough points range = a value that is the starting value of range when you start the game;

Jul 09 '11 at 05:53 PM Babilinski

(comments are locked)

Answer 4

0

ok so i need to change the code in shop menu from if (pointsscore >= 15) { to if (pointsscore >=15) { uprange up = (Range).GetComponent("Range").uprange(+10); ? i really am not sure how to code the rest of what you said to do...

answered Jul 09 '11 at 06:06 PM

Airmand
46 ● 3 ● 6 ● 7

do you have skype? ill show you

Jul 09 '11 at 06:22 PM Babilinski

i can download it but i dont know how long it will take. Im currently in afgahnistan so my internet is a bit slower.

Jul 09 '11 at 06:34 PM Airmand

(comments are locked)

Answer 5

0

ahh well are you using java or C#?

answered Jul 09 '11 at 06:36 PM

Babilinski
119 ● 40 ● 42 ● 43

javascript

Jul 09 '11 at 06:37 PM Airmand

(comments are locked)

Community

Accessing a variable of a script from another scene.

Follow this question

Welcome to Unity Answers

Unity Answers tutorial video!

Related Questions