Author: github.com/annadostoevskaya

File: readme.txt

Date: September 4st 2022 5:15 pm

Description:

TetrisByAnnad or tetris-minimal, is a small project 

developed by Me within a month to test the abilities 

received during 0 - 42 lessons of Casey Muratori, 

HandmadeHero.

Here I write a platform layer based on SDL 2.0 from 

scratch, build the architecture of the game, and 

also use some specific technologies, such as 

"SIMD" for my own implementation of "std::memcpy", 

or a "Taylor Series" for sine calculcation.

The logic that Handmade Hero had was saved here. All 

files starting with "sdl_*" refer to the platform 

layer written in SDL 2.0 and contain code that needs 

to be rewritten for the other platforms. All files 

starting with "game_*" contain platform-independent 

code that must not be modified during porting.

The "algs.cpp" file and "mmath.cpp" contain extremely 

specific code, and if the "mmath.cpp" is just slow and 

there is a better alternative (the standard library, 

"std::sin" function is faster then "Sin", I checked), 

then the "algs.cpp" file contains code that depends 

on the processor architecture (SSE/AVX) and compiler 

intrinsics. I left it only because it is a valuable 

experience. The "debug.cpp" file contains trash code 

for debugging, just ignore it.

Also, it's worth mentioning that the entire codebase 

has been reviewed by a C++ person, github.com/saiel, 

thanks to him for the advice. Ask if you have any 

questions. 

Good luck!