Basic object creation in arrays! Syntax error!

Question

I'm trying to create a basic array of buildings, and store each Building object in an array slot. The array will hold a list of Building's that can later be put into a menu that would place the object in the world. If there is a better way to create an array to be accessed, besides a static class, which is storing all of my predetermined buildings, it would be awesome to learn!

Problem: The array of objects I am creating gives a syntax error saying it expects [ ] or ,

alt text

Aside from what I'm trying. This is what I have in mind for the game system I am making. The player opens a menu, picks a building and places a building. The buildings are predetermined and listed onto a

BUILDING OBJECT------------------------------------------------------------

 using UnityEngine;
 
 using System.Collections;
 
 public class Building : MonoBehaviour {
 
     private int curHealth;
     private int maxHealth;
     private bool isAlive;
 
     public Building(int curHealth, int maxHealth, bool isAlive){
         this.curHealth=curHealth;
         this.maxHealth=maxHealth;
         create();
     }
 
     public void destroy()
     {
         this.destroy();
     }
 
     public Building create()
     {
         isAlive=true;
         return this;
     }
 
     public bool getAlive()
     {
         return isAlive;
     }
 
     public void hpUpdate()
     {
         if (curHealth<=0)
         {
             isAlive=false;
             destroy ();
         }
         else{
             curHealth+=2;
         }
     }
 
 }

CLASS THAT STORES BUILDINGS---------------~ERROR IS IN THIS CLASS~----------------

     using UnityEngine;
     using System.Collections;
     
     public static class BuildingList {
     
         static Building[] buildings=new Building[3];
     
         buildings[0]=new Building(100, 100, true);
         buildings[1]=new Building(500, 500, true);
         buildings[2]=new Building(50, 100, true);
     
         static public Building[] getList()
         {
             return buildings;
         }
     }

MENU TO BUILD------------------------------------

 using UnityEngine;
 
 using System.Collections;
 
 public class BuildMenu : MonoBehaviour {
 

         Building[] temp;
     
         // Use this for initialization
         void Awake () {
             Building[] temp=BuildingList.getList();
         }
         
         // Update is called once per frame
         void Update () {
             if(Input.GetButtonDown("Build"))
             {
     
             }
         }
     
         void FixedUpdate(){
             for(int i=0;i<temp.Length;i++)
             {
                 temp[i].hpUpdate();
             }
         }
     }

Answer 1

You have a constructor in a MonoBehaviour class, Unity won't like it. You need to use AddComponent instead and remove the ctor.

I have not gone through the whole code you provide, instead I will explain how I will do it.

Create a manager game object, just an empty game object and add a script that is not static. The script has an array of building prefab:

 public GameObject [] building;

this will show Building in your inspector, if you give a size greater than 0, you can drag and drop your prefab of building.

Then each of your GUI button could be given a integer value, this value will correspond to the index where the corresponding building is stored in the array.

Then you can instantiate like:

 Instantiate(buildingManager.building[i], position, rotation);

Of course this requires that you have a reference to the BuildingManager done with GetComponent.

Somehow:

 public class GUIClass:MonoBehaviour{
     GameObject[]buildings;
     void Start(){
        buildings = bm.buildings;
     }
     int index
     void OnGUI(){
         for (int i = 0; i < bm.buildings.Length; i++){
            if(GUI.Button(rect[i], buildings[i].name))index = i;
         }
     }
     void PlaceBuilding(){
         // Position comes from somewhere else
         Instantiate(building[index],position, Quaternion.identity)
     }
 }

now the Building script:

 public class BuildingManager:MonoBehaviour{
     public GameObject[] buildings;
 }

This is not guarantee to work but should lead you to the way.

Basic object creation in arrays! Syntax error!

1 Reply

Your answer

Follow this Question

Related Questions