rlm@63: package com.aurellem.capture;
rlm@63: 
rlm@63: import com.jme3.system.Timer;
rlm@63: 
rlm@63: /**
rlm@63:  * RatchetTimer is the same as IsoTimer, except that it will ensure
rlm@63:  * that the simulation does not proceed any faster than it would had
rlm@63:  * NanoTimer been used.
rlm@63:  * 
rlm@63:  * @author normenhansen, Robert McIntyre
rlm@63:  */
rlm@63: 
rlm@63: public class RatchetTimer extends Timer{
rlm@69:     private long framerate;
rlm@63:     private int ticks;
rlm@63:     private long lastTime = 0;
rlm@63: 
rlm@63:     public RatchetTimer(float framerate) {
rlm@69:         this.framerate = (long) framerate;
rlm@63:         this.ticks = 0;
rlm@63:     }
rlm@64:     
rlm@64:     /**
rlm@64:      * return time in milliseconds
rlm@64:      */
rlm@63:     public long getTime() {
rlm@69: 	return ticks;
rlm@63:     }
rlm@63: 
rlm@63:     public long getResolution() {
rlm@69: 	return framerate;
rlm@63:     }
rlm@63: 
rlm@63:     public float getFrameRate() {
rlm@69:         return framerate;
rlm@63:     }
rlm@63: 
rlm@63:     public float getTimePerFrame() {
rlm@69:         return (float) (1.0f / framerate);
rlm@63:     }
rlm@63: 
rlm@63:     public void update() {
rlm@63:         long time = System.currentTimeMillis();
rlm@63:         long difference = time - lastTime;
rlm@63:         lastTime = time;
rlm@63:         if (difference < (1.0f / this.framerate) * 1000.0f) {
rlm@63:             try {
rlm@63:                 Thread.sleep(difference);
rlm@63:             } catch (InterruptedException ex) {
rlm@63:             }
rlm@63:         }
rlm@63:         this.ticks++;
rlm@63:     }
rlm@63: 
rlm@63:     public void reset() {
rlm@63:         this.ticks = 0;
rlm@63:     }
rlm@63: }
rlm@63: