plugins/net.mograsim.logic.core/src/net/mograsim/logic/core/timeline/PauseableTimeFunction.java

   1 package net.mograsim.logic.core.timeline;
   2
   3 import java.util.function.LongSupplier;
   4
   5 public class PauseableTimeFunction implements LongSupplier
   6 {
   7         private boolean paused = false;
   8         private long unpausedSysTime = 0, lastPausedInternalTime = 0;
   9         private int speedPercentage = 100;
  10
  11         public void pause()
  12         {
  13                 if (!paused)
  14                 {
  15                         lastPausedInternalTime = getAsLong();
  16                         paused = true;
  17                 }
  18         }
  19
  20         public void unpause()
  21         {
  22                 if (paused)
  23                 {
  24                         paused = false;
  25                         unpausedSysTime = System.currentTimeMillis();
  26                 }
  27         }
  28
  29         @Override
  30         public long getAsLong()
  31         {
  32                 return paused ? lastPausedInternalTime
  33                                 : lastPausedInternalTime + ((System.currentTimeMillis() - unpausedSysTime) * speedPercentage) / 100;
  34         }
  35
  36         public void setSpeedPercentage(int percentage)
  37         {
  38                 if (!paused)
  39                 {
  40                         pause();
  41                         unpause();
  42                 }
  43                 this.speedPercentage = Integer.min(100, Integer.max(percentage, 1));
  44         }
  45
  46         public boolean isPaused()
  47         {
  48                 return paused;
  49         }
  50
  51         public void toggle()
  52         {
  53                 if (paused)
  54                         unpause();
  55                 else
  56                         pause();
  57         }
  58 }