"GameObject" not recognized - c#

I just started learning c# for unity today and at my 3rd line of code I run into a problem:
My VSCode doesn't "recognize" the GameObject variable. The autocomplete menu doesnt show it and if I hard-write it, it doesnt get coloured.
Im following this tutorial and I dont wanna keep going without solving this.
Its worth clarifying that I didnt install anything other than VSCode and Unity 2019.3.2 and maybe I need a some extension?
Here's the code:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class NewBehaviourScript : MonoBehaviour
{
public int health = 5;
public float fhealth = 5.0;
public GameObject player;
}

Visual Studio Code normally doesnt autocomplete Classes if not installed with Unity Package Manager. So, if you dont have any compiler errors you could just continue without autocomplete.

Related

My visual studio script is not working in Unity

I just started game development and got into a problem
whenever I load my Visual Studio code into Unity it says
The refrenced script unknown on this behaviour is missing
This is my script
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class VirtualManMovement : MonoBehaviour
{
// Start is called before the first frame update
void Start()
{
Debug.Log("Hello, World!") ;
}
// Update is called once per frame
void Update()
{
}
}
I need a solution for this
This may happen is the file name does not match the class name. Make sure that the file containing this script is also named VirtualManMovement.cs
Make sure in Unity you go to edit -> preferences and see that you have Unity External tools in Your IDE Selected.
Ensure your Code File Name is the same as your Class to prevent confusion.
I was confused as well when I first started. Hopefully, you find this useful

Unity: Calling a method from another script

I am completely new to Unity and all other answers I've found for this go over my head.
So far I've run everything from the same script, which is getting very big and messy. Therefore I am trying to learn how to call methods from other scripts.
I have a dropdown menu with the code in one script and I'm trying to call that code from another.
ScriptA:
using UnityEngine;
public class ChoseLanguage: MonoBehaviour
{
public TMPro.TMP_Dropdown myDrop;
DisplayController displayController;
public void DropdownChooseLanguage()
{
if (myDrop.value == 1)
PlayerPrefs.SetString("chosenLanguage", "Spanish");
if (myDrop.value == 2)
PlayerPrefs.SetString("chosenLanguage", "Japanese");
if (myDrop.value == 3)
PlayerPrefs.SetString("chosenLanguage", "Korean");
if (myDrop.value == 4)
PlayerPrefs.SetString("chosenLanguage", "Icelandic");
Debug.Log(PlayerPrefs.GetString("chosenLanguage"));
displayController.DropdownSetLanguage();
}
}
The selection code works by itself, and the debug.Log shows that the chosen language is being saved correctly to PlayerPrefs.
The error comes when it tries to read the "displayController.DropdownChooseLanguage();" line. (Line 28)
Unity gives this error:
NullReferenceException: Object reference not set to an instance of an object
ChoseLanguage.DropdownChooseLanguage () (at Assets/Scripts/ChoseLanguage.cs:28)
Script B
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using System.Linq;
using TMPro;
public class DisplayController : MonoBehaviour
{
...
public void DropdownSetLanguage()
{
SetFileName();
setLanguage.gameObject.SetActive(false);
Start();
}
...
}
Earlier, the exact same code from Script A was placed in ScriptB and all the code worked as it should.
This is a very noob question but I have simply just never been able to understand how exactly to access other scripts correctly.
Any help will be greatly appreciated.
Thanks.
EDIT:
I found a solution to this but I'll keep the question up in case other beginners have the same problem or if anyone has a better solution.
I made the DisplayController displayController; into public DisplayController displayController; and then dragged the gameobject with the displaycontroller script attached into the slot for it.
DropdownSetLanguage is public and it seems you think you can access it by
creating a DisplayController object named displayController.
It is ok
about to access a class but, displayController should be null in this state.
Because you have to assign an initial DisplayController to displayController
in your first code.
You can add public or [Serializable] tag in front of
DisplayController displayController; in your first code then, you can add
a GameObject which has a DisplayController script in it in Unity editor.
accessibility

Visual Studio Intellisense for UnityEngine not working

I am trying to write a script for Unity in C#. I created the script and then I opened it. When I typed in Ge, I don't get Unity methods (I only see GetHashCode and GetType). I am looking for GetComponent. I tried writing the script (from a tutorial) and it works fine in Unity, so only the intellisense is not working. It also doesn't work for new Vector3().
I am using Visual Studio Community 2019 (v 16.5.2).
The complete script is:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class AddConstantVelocity : MonoBehaviour
{
// Start is called before the first frame update
void Start()
{
}
// Update is called once per frame
void Update()
{
GetComponent<Rigidbody>().velocity = new Vector3(2, 10, -6);
}
}
You need to specify VS Code as the default editor.
Edit > Prefernces > External tools > External Script Editor

Unity does not even recognize "Collider" on my function "OnTriggerEnter()"

I'm a Unity beginner ,so right now I'm doing some small projects by watching some tutorials on youtube.
But, after looking at one tutorial that used the "OnTriggerEnter" function with the attribute "Collider". I realized that my editor didn't recognize "Collider" so I couldn't use "OnTriggerEnter".
I searched on the internet, but coudln't find any answer related to my question.
It's the first time, it's happened to me so I don't really know how to solve this problem...
Here's my little code, I'm just trying to move something when my player enters in a zone.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Trigger : MonoBehaviour
{
public bool opening = false;
// Start is called before the first frame update
void Start()
{
}
// Update is called once per frame
void Update()
{
}
// OnTriggerEnter is called when something enter in the trigger
void OnTriggerEnter(Collider obj)
{
if(obj.transform.name == "Player")
{
opening = true;
}
}
}
So, as I said, my unity editor which is Microsoft visual studio does not detect "Collider" (I don't have the possibility to pre-fill by pressing enter for example) and the color is white and not blue like "true" for example.
So because of that I can't move forward with the project, and I'd like to know what to do so that my editor recognizes "Collider" and I can make my project work!
Thank you in advance for your answers.
To solve that you can do the following:
Close Unity and Visual Studio.
Open Unity.
Open Visual Studio from Unity (Assets => Open C# Project).
If that doesn't work you need to check your current editor in:
Edit => Preferences => External Tools => External Script Editor
Visual Studio always have some errors like missing dependencies and stuff. I would recommend using Visual Studio Code application. Just like #Jack has explained. Browse to Edit => Preferences => External Tools => External Script Editor and change your script editor to Visual Studio Code and then try again.

BuildPipeline.BuildAssetBundles deprecated (Unity)

I am developing a scene in Unity that will feature augmented reality. I would like my 3D object to be loaded from an external server. I was following a youtube tutorial on how to do that and he uses this script:
using UnityEngine;
using System.Collections;
using UnityEditor;
public class CreateAssetBundles : MonoBehaviour
{
[MenuItem("Assets/Build AssetBundles")]
static void BuildAllAssetBundles()
{
BuildPipeline.BuildAssetBundles("Assets/AssetBundles");
}
}
However, BuildPipeline.BuildAssetBundles is said to be deprecated. There are added parameters which I have no idea what to put. This is my first time using Build Pipeline. How do I fix this? I tried asking in unityanswers but sadly noone was able to help me so I'm hoping that someone can help me here.

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