1 files changed, 19 insertions, 0 deletions
diff --git a/src/timer.cpp b/src/timer.cpp
new file mode 100644
index 0000000..c775a73
--- /dev/null
+++ b/src/timer.cpp
@@ -0,0 +1,19 @@
+#include "timer.h"
+
+Timer::Timer(): t0 {0} {}
+
+void Timer::start(){
+    t0 = SDL_GetTicks();
+}
+unsigned int Timer::elapsed(){
+    return SDL_GetTicks() - t0;
+}
+void Timer::restart(){
+    start();
+}
+void Timer::wait(unsigned int millis){
+    SDL_Delay(millis);
+}
+void Timer::waitUntil(unsigned int millis){
+    wait( millis - elapsed() );
+}