Testing time (and found some bugs!)

src/time/time.c

@@ -33,16 +33,18 @@ void timeUpdate(void) {
 
   #if TIME_FIXED ==  0
     #if TIME_SDL2
-      float_t newTime = (float_t)SDL_GetTicks() / 1000.0f;
-      TIME.dynamicDelta = newTime - TIME.dynamicTime;
-      TIME.dynamicTime = newTime;
+      float_t msElapsed = ((float_t)SDL_GetTicks64() / 1000.0f) + TIME_STEP;
+      TIME.dynamicDelta = msElapsed - TIME.dynamicTime;
+      TIME.dynamicTime = msElapsed;
       TIME.dynamicUpdate = true;
     #else
       #error "No time platform defined"
     #endif
 
     assertTrue(TIME.dynamicDelta >= 0.0f, "Time delta is negative");
-    if(TIME.dynamicTime - TIME.time >= TIME_STEP) {
+
+    // Is within 1ms of a full step?
+    if(TIME.dynamicTime - TIME.time >= TIME_STEP * 0.999f) {
       TIME.dynamicUpdate = false;
       TIME.delta = TIME_STEP;
       TIME.time += TIME_STEP;

src/time/time.h

@@ -8,8 +8,7 @@
 #pragma once
 #include "dusk.h"
 
-#define TIME_STEP (1.0f / 60.0f) // 60 Ticks per second (what we are aiming for)
-
+#define TIME_STEP (16.0f / 1000.0f)
 #ifndef TIME_FIXED
   #define TIME_FIXED 0
 #endif