Cap the FPS to fps target

1 files changed, 9 insertions, 3 deletions

diff --git a/src/core/src/loop.c b/src/core/src/loop.c
index 1663219..db2033d 100644
--- a/src/core/src/loop.c
+++ b/src/core/src/loop.c
@@ -382,10 +382,16 @@ i32 engine_run(Platform* p, StateType initial_state, void* state_arg) {
       render_present(p->window);
       const f64 rendertime_dt = get_time() - rendertime_begin;
 
+      /* Regulate FPS */
+      f64 frame_end = get_time();
+      const f64 fps_diff = fps_cap - (frame_end - now);
+
+      if (fps_cap >= (frame_end - now)) {
+        delay(fps_diff);
+      }
 
       /* Print stats */
-      const f64 now = get_time();
-      const f64 dt_measurement = now - last_fps_measurement;
+      const f64 dt_measurement = frame_end - last_fps_measurement;
       /* only make measurements once a second */
       if (dt_measurement > 1000.0) {
 
@@ -400,7 +406,7 @@ i32 engine_run(Platform* p, StateType initial_state, void* state_arg) {
             , rendertime_dt
             );
 
-        last_fps_measurement = now;
+        last_fps_measurement = frame_end;
         last_fps_ticks = ticks;
       }
     }