Wayback Machinekoobas.hobune.stream
May JUN Jul
Previous capture 12 Next capture
2021 2022 2023
1 capture
12 Jun 22 - 12 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 /
  • Help Room /
avatar image
0
Question by harkensaw · Jan 30, 2016 at 03:17 PM · spawning

Spawning issues

okay so im trying to spawn some targets for my little guy to shoot. and when ive put my code in, he gets rained on by targets instead of them dropping in and fading away (also getting a strikeout error for line 7 ). Any help would be a bonus. cheers :)

using UnityEngine; using System.Collections;

public class GameController : MonoBehaviour {

 public GameObject target;
 float spawnRate = 3;
 float lastSpawn = 0;
 float currentScore = 0;
 public void TargetDestroyed() 
 {
     // Increment score by one for each target destroyed
     currentScore ++;
 }

 // Use this for initialization
 void Start () {
 
 }
 
 // Update is called once per frame
 void Update () {
 // Get a random spawn position on the x axis
     Vector2 spawnPosition = new Vector2(Random.Range(-17.0f, 17.0f), 10);
 // Instantiate a target at the spawn position
     GameObject targetRef = Instantiate (target, spawnPosition, Quaternion.identity) as GameObject;
 // Set the last spawn time to current time
     lastSpawn = Time.time;
     Destroy(targetRef, 10); // Destroy after 10 seconds
     }
 }
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 haiderInUnity · Jan 31, 2016 at 12:42 PM

Update() is called once per frame thats why your target is being created every frame which is why its raining. If you want to control the timing of spawn targets you should use coroutines. You can use them like this:

      void Start() {
          StartCoroutine(Spawn());
      }
  
      public IEnumerator Spawn() {
          while (true) {

          // Get a random spawn position on the x axis
          Vector2 spawnPosition = new Vector2(Random.Range(-17.0f, 17.0f), 10);

           // Instantiate a target at the spawn position
           GameObject targetRef = Instantiate (target, spawnPosition, Quaternion.identity) as GameObject;

              yield return new WaitForSeconds(delayTime);
          }
      }

here delayTime is the time you want to wait for the next spawn to occur. This way you can exactly control how many targets you want to spawn. @harkensaw

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

41 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

Related Questions

Keep the players position constant between two different levels 1 Answer

Instantiate not working correctly (Please help!) 1 Answer

Checking collision before instantiating prefab 0 Answers

Check to see if the new spawn location is different than the previous one? 1 Answer

platforms spawning towards my player 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