Richardson

ref: https://stackoverflow.com/questions/143174/how-do-i-get-the-directory-that-a-program-is-running-from#198099

``` ./mygame --log-level=debug ```

- [x] #80 - Issue Template - [x] Bug report #104 - [ ] Feature request - [ ] Pull Request Template

Update README

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- Quick Start - [x] VSCode Quick Start - [x] #88 - [ ] ~~Visual Studio Quick Start~~ - Bugs - [x] #59 - [x] #78 - References - [...

As the title https://github.com/ntut-open-source-club/practical-tools-for-simple-design/blob/c6a4ea854a20630ba88b21f83386f966ff3e7dfd/include/Util/Text.hpp#L53-L59 And I think those docs should be recorded in the interface `Drawable` not derived functions. https://github.com/ntut-open-source-club/practical-tools-for-simple-design/blob/c6a4ea854a20630ba88b21f83386f966ff3e7dfd/include/Core/Drawable.hpp#L9-L19

## Problem On macOS, some programs will experience significant performance hits when items on screen gets too many. According to [this answer on Stack Overflow](https://stackoverflow.com/a/30117992), using singletons with OpenGL uniform...

Rename Include Guard with `PTSD_` prefix

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I believe this is a good convention, at least SDL and glfw also follow it.

Including a stress testing program to the examples would be convenient.

ref: https://wiki.libsdl.org/SDL2_mixer/Mix_AllocateChannels p.s. Larger channels may degrade performance