Unity.Mathematics | math library used in Unity providing vector types | Math library

I tried following this Unity ECS Entity Manager Tutorial from Turbo Makes Games. I'm using Unity 2020.3.20f1.1086.

The Code works initially but I noticed, that Line 20 in SpawnEntitiesSystem.cs EntityManager.SetComponentData(newEntity, newPosition); stops working when I change or remove the namespace. After tinkering a bit with the code I can reproduce that the specific namespace is not important but the namespace has to be at least 18 characters long for the code to work as expected. If I change the namespace to 17 characters all entities are spawned at the same place. Other code after the faulty line 20 was executed but for readability I removed it from the code example. (Originally user input was also handled and in OnStartRunning a component was added to the new entitiy)

I only heard of similar problems in e.g. C++ when using pointer maths but I thought something like this shouldn't happen in C#. Does anyone have an idea what the core problem could be?

What I already tried without succes

• restart Unity
• delete Library, Obj and Logs folders
• write code from scratch in new project
• restart PC

SpawnEntitiesSystem.cs

I have this code for my linear acceleration and deceleration.

When I try to import mathematics it throws me an error saying that

'' error CS0234: The type or namespace name 'Mathematics' does not exist in the namespace 'Unity' (are you missing an assembly reference?)''

I tried, Using System.Mathematics, Using Unity.Mathematics I also tried by typing Math instead of Mathematics. Idk why this is throwing an error, I use Notepad++ for scripting.

[1]: https://i.stack.imgur.com/vNs9J.png <--- Error picture

So I've been working on a game in unity and want to expand my world from a 150x150 map into a seemingly infinite procedural world. My plan is to use Perlin Noise as the base and use the different values from 0-1 to determine the terrain type. The issue I'm running into is when I draw out my chunks and offset accordingly my chunks do not line up correctly, which kind of break the illusion of an infinite world.

(seen here)

WorldChunk.cs

I'm a web developer (symfony <3 ;) C# and microsoft technologies are new for me ! ) and during the covid containment I want create a simple game with the game engine unity

On Ubuntu 19.10, I downloaded unity Hub v2.3.0 (https://unity3d.com/get-unity/download)

From unity hub, I installed unity3D v2019.3.7f1 (the lastest stable) with some options (Linux & WebGL & windows build support)

And I created a simple 2D game

All works like a charm, I can open my project and run my new game without any error in the unity3D console

From Unity, when I create a c# script, the file can be opened by my (very simple) text editor gedit. Now I want to install the cross-os IDE visualcode thanks thats I'll get some usefull extensions and autocompletion code when I'll edit my unity scripts.

So, I installed vscode via apt install (I followed this official guide : https://code.visualstudio.com/docs/setup/linux)

My version of vscode is :

After some web search, I understand I must install the .NET framework (maybe I'm wrong ?)

My dotnet version (from a terminal : dotnet --version) is 3.1.201

Next I configured the unity parameter for change the default text editor :

• External Script Editor : code
  • code refer to the path /usr/bin/code, the executable of vscode
• External Script Editor Args : "$(ProjectPath)" -g "$(File)":$(Line):$(Column)
  • value by default, I changed nothing

I created a simple c# script from unity, I opened the file and vscode opened automatically (yeah !). And from vscode I added two public variables (the bool 'a' and the Rigidbody2D 'b')

I saved my script and go to unity app, the variables a and b are visible on the interface :

All works ! But now, I want have the autocomplete code from vscode. So, I installed the vscode c# extensions. But when the installation finished, this message appears :

The whole of log is :