initial commit

build.bat

@@ -0,0 +1,12 @@
+@echo off
+
+del oppai.exe >nul 2>&1
+del main.obj >nul 2>&1
+cl  -D_CRT_SECURE_NO_WARNINGS=1 ^
+  -DNOMINMAX=1 ^
+  -O2 -nologo -MT -Gm- -GR- -EHsc -W4 ^
+  -DOPPAI_IMPLEMENTATION ^
+  -DOPPAI_STATIC_HEADER ^
+  main.c oppai.c ^
+  -Feoppai.exe ^
+  || EXIT /B 1