added game loop with render sync

1 files changed, 5 insertions, 1 deletions

diff --git a/src/game.hpp b/src/game.hpp
index 80c971f..4ab021b 100644
--- a/src/game.hpp
+++ b/src/game.hpp
@@ -6,13 +6,17 @@
 
 using GameTimeDuration = std::chrono::duration<int64_t, std::nano>;
 using GameTimePoint = std::chrono::steady_clock::time_point;
+#define NANO_DENOM std::chrono::nanoseconds::period::den
+#define NANO_DENOM_DOUBLE double(std::chrono::nanoseconds::period::den)
 
 struct GameSettings {
 	bool isGameRunning = true;
 	bool isGamePaused = false;
 	bool isFramerateUnlocked = true;
 	int64_t targetFPS = 144;
-	GameTimeDuration nanosecondsPerFrame = GameTimeDuration(std::chrono::nanoseconds::period::den / targetFPS);
+	int64_t minFPS = 20;
+	double deltaPerFrame = 1 / double(targetFPS);
+	double minimumDeltaPerFrame = 1 / double(minFPS);
 };
 
 extern GameSettings pkeSettings;