gameloop save

1 files changed, 56 insertions, 0 deletions

diff --git a/gameloop/src/timer.cpp b/gameloop/src/timer.cpp
new file mode 100644
index 0000000..6428797
--- /dev/null
+++ b/gameloop/src/timer.cpp
@@ -0,0 +1,56 @@
+#include "timer.h"
+
+// Singleton instance for global access
+LoopTimer& LoopTimer::getInstance() {
+    static LoopTimer instance;
+    return instance;
+}
+
+// Private constructor
+LoopTimer::LoopTimer() : lastTime(0), deltaTime(0), frequency(0), FPS(0), frameTargetTime(0) {}
+
+void LoopTimer::start() {
+
+}
+
+void LoopTimer::update() {
+    Uint64 currentTime = SDL_GetTicks64();
+    deltaTime = (currentTime - lastFrameTime) / 1000.0;
+	time += deltaTime;
+    lastFrameTime = currentTime;
+}
+
+float LoopTimer::getDeltaTime() const {
+    return deltaTime;
+}
+float LoopTimer::getDeltaTimeMs() const {
+    return deltaTime * 1000;
+}
+int LoopTimer::getCurrentTime() const {
+    return SDL_GetTicks64();
+}
+
+float LoopTimer::getFixedDeltaTime() const {
+    return fixedDeltaTime;
+}
+
+void LoopTimer::setFPS(int FPS) {
+    if (FPS > 0) {
+        this->FPS = FPS;
+        frameTargetTime = 1000 / FPS;
+    }
+}
+float LoopTimer::getLag() const{
+	return lag;
+}
+int LoopTimer::getFPS() const {
+    return FPS;
+}
+
+// Delay to match target frame time
+void LoopTimer::enforceFrameRate() {
+    int waitTime = frameTargetTime - (SDL_GetTicks64() - lastFrameTime);
+	if(waitTime > 0 && waitTime <= frameTargetTime){
+		SDL_Delay(waitTime);
+	}
+}