Wayback Machinekoobas.hobune.stream
May JUN Jul
Previous capture 13 Next capture
2021 2022 2023
1 capture
13 Jun 22 - 13 Jun 22
sparklines
Close Help
  • Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
  • Asset Store
  • Get Unity

UNITY ACCOUNT

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account
  • Blog
  • Forums
  • Answers
  • Evangelists
  • User Groups
  • Beta Program
  • Advisory Panel

Navigation

  • Home
  • Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
    • Blog
    • Forums
    • Answers
    • Evangelists
    • User Groups
    • Beta Program
    • Advisory Panel

Unity account

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account

Language

  • Chinese
  • Spanish
  • Japanese
  • Korean
  • Portuguese
  • Ask a question
  • Spaces
    • Default
    • Help Room
    • META
    • Moderators
    • Topics
    • Questions
    • Users
    • Badges
  • Home /
avatar image
0
Question by MrDemmy · Apr 29 at 06:20 PM · c#unity 2d

Having issues with Creating GameObject through the class

I've tried to create a class Enemy with function to spawn 1 cube with random position, color, scale, etc (it works I guess), but having issues to spawn bunch of them (through the loop. I've tried to use coroutine to create a cycle, but it doesn't work. How do I create a bunch of Enemies with their own unique parameters (unique color, pos, scale, etc...) ?

Enemy file:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class Enemy : MonoBehaviour
 {
     public GameObject SpawnHost;
     public GameObject EnemySample;
     public int EnemySpeed = 1;
     public float SpawnRadius = 4.5f;
     int EnemyCounter = 0;
 
     private readonly string[] enemyNames = { "Ranger", "Hunter", "Sniper", "Bulldog", "Alpha", "Rifleman" };
     private string enemyName;
     private Color enemyColor;
     private Vector3 enemyScale;
     private float x;
     private float y;
     void Awake()
     {
         enemyName = enemyNames[Random.Range(0, enemyNames.Length)];
         enemyColor = Random.ColorHSV();
         enemyScale = new Vector3(Random.value * 2 + 1, Random.value * 2 + 1, 1);
         x = SpawnHost.transform.position.x + Random.Range(-SpawnRadius * 2.14f + enemyScale.x / 2, SpawnRadius * 2.14f - enemyScale.x / 2);
         y = SpawnHost.transform.position.y + Random.Range(-SpawnRadius + enemyScale.y / 2, SpawnRadius - enemyScale.y / 2);
         SpawnHost = this.gameObject;
     }
 
     public void SpawnEnemy()
     {
         GameObject LocalEnemy = Instantiate(EnemySample);
         LocalEnemy.name = enemyName;
         LocalEnemy.transform.position = new Vector3(x, y, 0);
         LocalEnemy.GetComponent<SpriteRenderer>().color = enemyColor;
         LocalEnemy.transform.localScale = enemyScale;
         EnemyCounter++;
     }
 }

EnemySpawn file:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class EnemySpawn : MonoBehaviour
 {
     private int EnemyCounter = 0;
     public int SpawnCooldown = 5;
 
     private IEnumerator EnemySpawnCycleCoroutine;
     List<Enemy> Enemies;
 
     IEnumerator EnemySpawnCycle()
     {
         while (true)
         {
             Enemies[EnemyCounter] = this.gameObject.GetComponent<Enemy>();
             Enemies[EnemyCounter].SpawnEnemy();
             EnemyCounter++;
             yield return new WaitForSeconds(SpawnCooldown);
 
 
         }
     }
 
     void Awake()
     {
         EnemySpawnCycleCoroutine = EnemySpawnCycle();
     }
 
     void Update()
     {
         if (Input.GetKeyDown(KeyCode.Space))
         {
             StartCoroutine(EnemySpawnCycleCoroutine);
             
         }
 
     }
 }
 
Comment
Add comment
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users

1 Reply

· Add your reply
  • Sort: 
avatar image
0

Answer by rh_galaxy · Apr 30 at 11:09 AM

You are probably already creating many enemies, but they are all on the same place with the same scale and rotation.
Things you do in Awake() happens only once so you need to set the values before every time you Instantiate() an enemy. I think you should move everything in Enemy to EnemySpawn. Like this (untested):

 public class EnemySpawn : MonoBehaviour
 {
     public GameObject EnemySample;
     public float SpawnRadius = 4.5f;
     private readonly string[] enemyNames =
         { "Ranger", "Hunter", "Sniper", "Bulldog", "Alpha", "Rifleman" };
     public int SpawnCooldown = 5;
     List<Enemy> Enemies = new List<Enemy>();
 
     public Enemy SpawnEnemy()
     {
         //new values for this object creation
         string enemyName = enemyNames[Random.Range(0, enemyNames.Length)];
         Color enemyColor = Random.ColorHSV();
         Vector3 enemyScale = new Vector3(Random.value * 2 + 1, Random.value * 2 + 1, 1);
         float x = SpawnHost.transform.position.x + Random.Range(-SpawnRadius * 2.14f
             + enemyScale.x / 2, SpawnRadius * 2.14f - enemyScale.x / 2);
         float y = SpawnHost.transform.position.y + Random.Range(-SpawnRadius
             + enemyScale.y / 2, SpawnRadius - enemyScale.y / 2);

         //create object
         GameObject LocalEnemy = Instantiate(EnemySample);
         LocalEnemy.name = enemyName;
         LocalEnemy.transform.position = new Vector3(x, y, 0);
         LocalEnemy.GetComponent<SpriteRenderer>().color = enemyColor;
         LocalEnemy.transform.localScale = enemyScale;
         return LocalEnemy;
     }
 
     IEnumerator EnemySpawnCycle()
     {
         while (true)
         {
             Enemies.Add(SpawnEnemy());
             yield return new WaitForSeconds(SpawnCooldown);
         }
     }
 
     void Awake()
     {
         StartCoroutine(EnemySpawnCycle());
     }
 }
Comment
Add comment · Share
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users

Your answer

Hint: You can notify a user about this post by typing @username

Up to 2 attachments (including images) can be used with a maximum of 524.3 kB each and 1.0 MB total.

Follow this Question

Answers Answers and Comments

783 People are following this question.

avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image

Related Questions

Multiple Cars not working 1 Answer

Distribute terrain in zones 3 Answers

Why isn't my player looking the other direction when I wall jump (please help I am desperate) 1 Answer

Creating an app for mobile and browsers 1 Answer

Adapt OnMouseDown to control with Gamepad? 0 Answers


Enterprise
Social Q&A

Social
Subscribe on YouTube social-youtube Follow on LinkedIn social-linkedin Follow on Twitter social-twitter Follow on Facebook social-facebook Follow on Instagram social-instagram

Footer

  • Purchase
    • Products
    • Subscription
    • Asset Store
    • Unity Gear
    • Resellers
  • Education
    • Students
    • Educators
    • Certification
    • Learn
    • Center of Excellence
  • Download
    • Unity
    • Beta Program
  • Unity Labs
    • Labs
    • Publications
  • Resources
    • Learn platform
    • Community
    • Documentation
    • Unity QA
    • FAQ
    • Services Status
    • Connect
  • About Unity
    • About Us
    • Blog
    • Events
    • Careers
    • Contact
    • Press
    • Partners
    • Affiliates
    • Security
Copyright © 2020 Unity Technologies
  • Legal
  • Privacy Policy
  • Cookies
  • Do Not Sell My Personal Information
  • Cookies Settings
"Unity", Unity logos, and other Unity trademarks are trademarks or registered trademarks of Unity Technologies or its affiliates in the U.S. and elsewhere (more info here). Other names or brands are trademarks of their respective owners.
  • Anonymous
  • Sign in
  • Create
  • Ask a question
  • Spaces
  • Default
  • Help Room
  • META
  • Moderators
  • Explore
  • Topics
  • Questions
  • Users
  • Badges