Fix active FPS limits feeling stuttery

Signed-off-by: Lilly Rose Berner <lilly@lostluma.net>

Author: LostLuma

platforms/common/src/main/java/dynamic_fps/impl/Constants.java

@@ -8,7 +8,10 @@ public class Constants {
 	public static final boolean DEBUG = Platform.getInstance().isDevelopmentEnvironment();
 
 	// Miscellaneous
-	// Minecraft considers limits >=260 as infinite
+
+	// Minimum limit, for lower FPS we cancel frames
+	public static final int MIN_FRAME_RATE_LIMIT = 15;
+	// Minecraft considers limits >=260 as unlimited
 	public static final int NO_FRAME_RATE_LIMIT = 260;
 
 	// The Cloth Config mod ID has changed a few times

platforms/common/src/main/java/dynamic_fps/impl/DynamicFPSMod.java

@@ -307,8 +307,8 @@ private static boolean checkForRender(long timeSinceLastRender) {
 			return false;
 		}
 
-		// Disable frame rate limiting
-		if (frameRateTarget == Constants.NO_FRAME_RATE_LIMIT) {
+		// Disable mod-side frame rate limiting
+		if (frameRateTarget >= Constants.MIN_FRAME_RATE_LIMIT) {
 			return true;
 		}
 

platforms/common/src/main/java/dynamic_fps/impl/mixin/FramerateLimitTrackerMixin.java

@@ -36,7 +36,7 @@ private void getFramerateLimit(CallbackInfoReturnable<Integer> callbackInfo) {
 		if (state != PowerState.FOCUSED) {
 			// Instruct Minecraft to render a minimum of 15 FPS
 			// Going lower here makes resuming again feel sluggish
-			callbackInfo.setReturnValue(Math.max(this.getFramerateTarget(), 15));
+			callbackInfo.setReturnValue(Math.max(this.getFramerateTarget(), Constants.MIN_FRAME_RATE_LIMIT));
 		} else {
 			IdleCondition condition = DynamicFPSConfig.INSTANCE.idle().condition();