package NET.worlds.scape;

import NET.worlds.core.Std;

public class FrameEvent extends Event {
   private static int lastFrameTime;
   private static int deltaFrameTime;
   public int dt;

   public FrameEvent(WObject target) {
      super(lastFrameTime, null, target);
      this.dt = deltaFrameTime;
   }

   public FrameEvent(WObject source, WObject target) {
      super(lastFrameTime, source, target);
      this.dt = deltaFrameTime;
   }

   public void newFrameTime() {
      this.time = Std.getRealTime();
      if (lastFrameTime == 0) {
         deltaFrameTime = 0;
      } else {
         deltaFrameTime = this.time - lastFrameTime;

         assert this.time >= lastFrameTime && deltaFrameTime >= 0;
      }

      lastFrameTime = this.time;
      this.dt = deltaFrameTime;
   }

   @Override
   public boolean deliver(Object o) {
      return o instanceof FrameHandler && ((FrameHandler)o).handle(this) ? true : true;
   }

   public void retargetAndDeliver(FrameHandler h, WObject o) {
      this.target = o;
      this.receiver = o;
      h.handle(this);
   }
}