move gameloop poc to mwe

1 files changed, 30 insertions, 0 deletions

diff --git a/mwe/gameloop/include/timer.h b/mwe/gameloop/include/timer.h
new file mode 100644
index 0000000..a245e5c
--- /dev/null
+++ b/mwe/gameloop/include/timer.h
@@ -0,0 +1,30 @@
+#pragma once
+
+#include <SDL2/SDL.h>
+
+class LoopTimer {
+public:
+    static LoopTimer& getInstance();
+    void start();
+    void update();
+    double getDeltaTime() const;
+    int getCurrentTime() const;
+	void advanceFixedUpdate();
+	double getFixedDeltaTime() const;
+    void setFPS(int FPS);
+    int getFPS() const;
+    void enforceFrameRate();
+	double getLag() const;
+private:
+    LoopTimer();
+	int FPS = 50;
+	double gameScale = 1;
+	double maximumDeltaTime = 0.25;
+    double deltaTime;
+	double frameTargetTime = FPS / 1000;
+    double fixedDeltaTime = 0.01;
+    double elapsedTime;
+    double elapsedFixedTime;
+	double time;
+    uint64_t lastFrameTime;
+};