Moved a tonne of code around

CMakeLists.txt

@@ -7,6 +7,8 @@
 cmake_minimum_required(VERSION 3.13)
 set(CMAKE_C_STANDARD 99)
 set(CMAKE_C_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED True)
 
 # Set some global flags
 add_compile_definitions(
@@ -126,11 +128,6 @@ elseif(TARGET_TYPE STREQUAL game)
   elseif(TARGET_GAME STREQUAL sandbox)
     add_compile_definitions(
       GAME_NAME="Sandbox"
-      GAME_FILE="sandbox/game.h"
-      GAME_TYPE=sandboxgame_t
-      GAME_INIT=sandboxGameInit
-      GAME_UPDATE=sandboxGameUpdate
-      GAME_DISPOSE=sandboxGameDispose
       GAME_VERSION=1.0
     )