Create GameState, the single global for the root of everything

1 files changed, 15 insertions, 0 deletions

diff --git a/game/gamestate.cpp b/game/gamestate.cpp
new file mode 100644
index 0000000..fcd4248
--- /dev/null
+++ b/game/gamestate.cpp
@@ -0,0 +1,15 @@
+#include "gamestate.h"
+#include <cassert>
+
+GameState * gameState {nullptr};
+
+GameState::GameState()
+{
+	assert(!gameState);
+	gameState = this;
+}
+
+GameState::~GameState()
+{
+	gameState = nullptr;
+}