Sync playback rate

2 files changed, 47 insertions, 10 deletions

diff --git a/src/server/Main.hx b/src/server/Main.hx
index f056ac6..5142f48 100644
--- a/src/server/Main.hx
+++ b/src/server/Main.hx
@@ -438,11 +438,17 @@ class Main {
 					});
 					return;
 				}
-				send(client, {
+				final obj:WsEvent = {
 					type: GetTime, getTime: {
-					time: videoTimer.getTime(),
-					paused: videoTimer.isPaused()
-				}});
+						time: videoTimer.getTime()
+					}
+				};
+				if (videoTimer.isPaused()) obj.getTime.paused = true;
+				if (videoTimer.getRate() != 1) {
+					if (!clients.hasLeader()) videoTimer.setRate(1);
+					obj.getTime.rate = videoTimer.getRate();
+				}
+				send(client, obj);
 
 			case SetTime:
 				if (videoList.length == 0) return;
@@ -450,6 +456,12 @@ class Main {
 				videoTimer.setTime(data.setTime.time);
 				broadcastExcept(client, data);
 
+			case SetRate:
+				if (videoList.length == 0) return;
+				if (!client.isLeader) return;
+				videoTimer.setRate(data.setRate.rate);
+				broadcastExcept(client, data);
+
 			case Rewind:
 				if (!checkPermission(client, RewindPerm)) return;
 				if (videoList.length == 0) return;
@@ -474,6 +486,7 @@ class Main {
 				if (videoList.length == 0) return;
 				if (!clients.hasLeader()) {
 					if (videoTimer.isPaused()) videoTimer.play();
+					videoTimer.setRate(1);
 					broadcast({
 						type: Play, play: {
 							time: videoTimer.getTime()
diff --git a/src/server/VideoTimer.hx b/src/server/VideoTimer.hx
index 4bc29db..508b97b 100644
--- a/src/server/VideoTimer.hx
+++ b/src/server/VideoTimer.hx
@@ -1,19 +1,22 @@
 package server;
 
-import haxe.Timer;
+import haxe.Timer.stamp;
 
 class VideoTimer {
 
 	public var isStarted(default, null) = false;
 	var startTime = 0.0;
 	var pauseStartTime = 0.0;
+	var rateStartTime = 0.0;
+	var rate = 1.0;
 
 	public function new() {}
 
 	public function start():Void {
 		isStarted = true;
-		startTime = Timer.stamp();
+		startTime = stamp();
 		pauseStartTime = 0;
+		rateStartTime = stamp();
 	}
 
 	public function stop():Void {
@@ -23,22 +26,26 @@ class VideoTimer {
 	}
 
 	public function pause():Void {
-		pauseStartTime = Timer.stamp();
+		startTime += rateTime() - rateTime() * this.rate;
+		pauseStartTime = stamp();
+		rateStartTime = 0;
 	}
 
 	public function play():Void {
 		if (!isStarted) start();
 		startTime += pauseTime();
+		rateStartTime = stamp();
 		pauseStartTime = 0;
 	}
 
 	public function getTime():Float {
 		if (startTime == 0) return 0;
-		return Timer.stamp() - startTime - pauseTime();
+		final time = stamp() - startTime;
+		return time - rateTime() + rateTime() * rate - pauseTime();
 	}
 
 	public function setTime(secs:Float):Void {
-		startTime = Timer.stamp() - secs;
+		startTime = stamp() - secs;
 		if (isPaused()) pause();
 	}
 
@@ -46,9 +53,26 @@ class VideoTimer {
 		return !isStarted || pauseStartTime != 0;
 	}
 
+	public function getRate():Float {
+		return rate;
+	}
+
+	public function setRate(rate:Float):Void {
+		if (!isPaused()) {
+			startTime += rateTime() - rateTime() * this.rate;
+			rateStartTime = stamp();
+		}
+		this.rate = rate;
+	}
+
 	function pauseTime():Float {
 		if (pauseStartTime == 0) return 0;
-		return Timer.stamp() - pauseStartTime;
+		return stamp() - pauseStartTime;
+	}
+
+	function rateTime():Float {
+		if (rateStartTime == 0) return 0;
+		return stamp() - rateStartTime - pauseTime();
 	}
 
 }