NET/worlds/scape/SlidePropertyAction.java


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package NET.worlds.scape;

import NET.worlds.core.Std;
import java.io.IOException;

public abstract class SlidePropertyAction extends SetPropertyAction {
   private float _duration = 0.0F;
   private int _startMilliTime = 0;
   private static Object classCookie = new Object();

   protected boolean slide() {
      return this._duration != 0.0F;
   }

   protected void start() {
      this._startMilliTime = Std.getFastTime();
   }

   protected float fraction() {
      return (Std.getFastTime() - this._startMilliTime) / (1000.0F * this._duration);
   }

   @Override
   public Object properties(int index, int offset, int mode, Object value) throws NoSuchPropertyException {
      Object ret = null;
      switch (index - offset) {
         case 0:
            if (mode == 0) {
               ret = FloatPropertyEditor.make(new Property(this, index, "Duration"));
            } else {
               if (mode == 1) {
                  return new Float(this._duration);
               }

               if (mode == 2) {
                  this._duration = (Float)value;
               }
            }
            break;
         default:
            ret = super.properties(index, offset + 1, mode, value);
      }

      return ret;
   }

   @Override
   public void saveState(Saver s) throws IOException {
      s.saveVersion(1, classCookie);
      super.saveState(s);
      s.saveFloat(this._duration);
   }

   @Override
   public void restoreState(Restorer r) throws IOException, TooNewException {
      switch (r.restoreVersion(classCookie)) {
         case 1:
            super.restoreState(r);
            this._duration = r.restoreFloat();
            return;
         default:
            throw new TooNewException();
      }
   }
}