Init timeline

Author: sworleys

rectangles/engine/time/LocalTimeline.java

@@ -0,0 +1,64 @@
+package engine.time;
+
+public class LocalTimeline implements Timeline {
+
+	private int tickSize;
+	public Timeline anchor;
+	private long startTime;
+
+
+	/* Is it paused? */
+	private boolean isPaused = false;
+	
+	/* Accumulates paused time */
+	private long pauseTotalTime = 0;
+
+	/* Anchor for when timeline was paused */
+	private long pausedTime = 0;
+
+
+	public LocalTimeline(Timeline anchor, int tickSize) {
+		this.anchor = anchor;
+		this.tickSize = tickSize;
+	}
+
+	@Override
+	public void start() {
+		this.startTime = anchor.getCurrentTime();
+	}
+
+	@Override
+	public void pause() {
+		synchronized (this) {
+			if (!this.isPaused) {
+				this.pausedTime = anchor.getCurrentTime();
+				this.isPaused = true;
+			}
+		}
+
+	}
+
+	@Override
+	public void unpause() {
+		this.pausedTime += (anchor.getCurrentTime() - this.pausedTime);
+		this.pausedTime = 0;
+		this.isPaused = true;
+	}
+
+	@Override
+	public long getCurrentTime() {
+		long elapsedTime = (this.anchor.getCurrentTime() - this.startTime) - this.pauseTotalTime;
+		return elapsedTime / this.tickSize;
+	}
+
+	@Override
+	public int getTickSize() {
+		return this.tickSize;
+	}
+
+	@Override
+	public void setTickSize(int tickSize) {
+		this.tickSize = tickSize;
+	}
+
+}

rectangles/engine/time/Timeline.java

@@ -0,0 +1,23 @@
+package engine.time;
+
+public interface Timeline {
+	
+	/* Start Timeline */
+	public void start();
+	
+	/* Pause Timeline */
+	public void pause();
+	
+	/* Unpause Timeline */
+	public void unpause();
+	
+	/* Get Current time */
+	public long getCurrentTime();
+
+	/* Get tick size */
+	public int getTickSize();
+	
+	/* Set tick size */
+	public void setTickSize(int tickSize);
+	
+}