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Problem with elaborating and errors?

Discussion in 'Scripting' started by DWBITF, Jul 30, 2022.

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  1. DWBITF

    DWBITF

    Joined:
    Jul 25, 2022
    Posts:
    8
    Hello, my code says that "Assets/my scripts/Water Level/BossDamage.cs(13,5): error CS1061: 'Collider' does not contain a definition for 'getComponent' and no accessible extension method 'getComponent' accepting a first argument of type 'Collider' could be found (are you missing a using directive or an assembly reference?)"

    For context, this is a bigger enemy entity that has 3 more hit points that a standard enemy in my game.

    I'm pretty new to coding and i'm not exactly sure how to elaborate on "Collider" I thought that was something already in there.

    using System.Collections;
    using System.Collections.Generic;
    using UnityEngine;

    public class BossDamage : MonoBehaviour
    {
    public float Damage = 3f;
    void Start(){
    }

    void OnTriggerEnter(Collider hit){
    if(hit.gameObject.tag == "Melee" ){
    hit.getComponent<BossDamage>().curHealth -= Damage;
    Destroy(this.gameObject);
    }
    }
    }


    Here's my code, what might I have to edit for it to function?
     
  2. Kurt-Dekker

    Kurt-Dekker

    Joined:
    Mar 16, 2013
    Posts:
    38,697
    If you post a code snippet, ALWAYS USE CODE TAGS:

    How to use code tags: https://forum.unity.com/threads/using-code-tags-properly.143875/

    You are just making typing mistakes here. You need to get your typing accuracy to 100%.

    Go look at the docs for the function in question. You'll be amazed! Capitalization matters.

    The complete error message contains everything you need to know to fix the error yourself.

    The important parts of the error message are:

    - the description of the error itself (google this; you are NEVER the first one!)
    - the file it occurred in (critical!)
    - the line number and character position (the two numbers in parentheses)
    - also possibly useful is the stack trace (all the lines of text in the lower console window)

    Always start with the FIRST error in the console window, as sometimes that error causes or compounds some or all of the subsequent errors. Often the error will be immediately prior to the indicated line, so make sure to check there as well.

    All of that information is in the actual error message and you must pay attention to it. Learn how to identify it instantly so you don't have to stop your progress and fiddle around with the forum.

    Remember: NOBODY here memorizes error codes. That's not a thing. The error code is absolutely the least useful part of the error. It serves no purpose at all. Forget the error code. Put it out of your mind.

    Tutorials and example code are great, but keep this in mind to maximize your success and minimize your frustration:

    How to do tutorials properly, two (2) simple steps to success:

    Step 1. Follow the tutorial and do every single step of the tutorial 100% precisely the way it is shown. Even the slightest deviation (even a single character!) generally ends in disaster. That's how software engineering works. Every step must be taken, every single letter must be spelled, capitalized, punctuated and spaced (or not spaced) properly, literally NOTHING can be omitted or skipped.

    Fortunately this is the easiest part to get right: Be a robot. Don't make any mistakes.
    BE PERFECT IN EVERYTHING YOU DO HERE!!


    If you get any errors, learn how to read the error code and fix your error. Google is your friend here. Do NOT continue until you fix your error. Your error will probably be somewhere near the parenthesis numbers (line and character position) in the file. It is almost CERTAINLY your typo causing the error, so look again and fix it.

    Step 2. Go back and work through every part of the tutorial again, and this time explain it to your doggie. See how I am doing that in my avatar picture? If you have no dog, explain it to your house plant. If you are unable to explain any part of it, STOP. DO NOT PROCEED. Now go learn how that part works. Read the documentation on the functions involved. Go back to the tutorial and try to figure out WHY they did that. This is the part that takes a LOT of time when you are new. It might take days or weeks to work through a single 5-minute tutorial. Stick with it. You will learn.

    Step 2 is the part everybody seems to miss. Without Step 2 you are simply a code-typing monkey and outside of the specific tutorial you did, you will be completely lost. If you want to learn, you MUST do Step 2.

    Of course, all this presupposes no errors in the tutorial. For certain tutorial makers (like Unity, Brackeys, Imphenzia, Sebastian Lague) this is usually the case. For some other less-well-known content creators, this is less true. Read the comments on the video: did anyone have issues like you did? If there's an error, you will NEVER be the first guy to find it.

    Beyond that, Step 3, 4, 5 and 6 become easy because you already understand!
     
  3. halley

    halley

    Joined:
    Aug 26, 2013
    Posts:
    2,433
    Couple mistakes

    * Collider does not have a getComponent method (correct)
    * Collider is a Component, so it does have a GetComponent<T>() method
    * the method is called GetComponent, not getComponent

    Everything in C# requires the correct capitalization. You can use the GameObject's GetComponent method also.

    Either change should get you past this current error:

    hit.GetComponent<BossDamage>()

    hit.gameObject.GetComponent<BossDamage>()


    There might be other issues if you are using compound colliders on your BossDamage object, and maybe a Rigidbody to combine them. In such cases, you may expect the BossDamage to be on the root object and not on the actual collider struck.

    hit.rigidbody.GetComponent<BossDamage>()

    hit.GetComponentInParent<BossDamage>()
     
  4. kdgalla

    kdgalla

    Joined:
    Mar 15, 2013
    Posts:
    4,635
    Make sure you have autocomplete working in your ide. Then you can find the correct spelling easily.
     
  5. zombiegorilla

    zombiegorilla

    Moderator

    Joined:
    May 8, 2012
    Posts:
    9,051
    Closing. This was necroed by a spam bot, which was removed.
     
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