/*---------------------*/
/* Wk81Behavior.java   */
/*---------------------*/
import java.awt.event.*;
import java.awt.AWTEvent;
import java.util.Enumeration;               //Enumeration
import javax.media.j3d.*;                   //Java3d
import javax.vecmath.*;                     //Point3f,Color3f

public class Wk81Behavior extends Behavior{

    private WakeupCondition wakeupConditon;
    private TransformGroup tg; 
    private Transform3D rot = new Transform3D();
    private boolean rotateFlag = false;
    private int theta=0;

    public Wk81Behavior(TransformGroup tg){

        this.tg = tg;                //変更対象の幾何ノード
    }

    public void initialize(){

        WakeupCriterion[] event = new WakeupCriterion[2];
        event[0] = new WakeupOnAWTEvent(KeyEvent.KEY_PRESSED);
        event[1] = new WakeupOnElapsedFrames(0);
        wakeupConditon = new WakeupOr(event);
        wakeupOn(wakeupConditon);

        System.out.println("--------------------------------");
        System.out.println(" r  : 時計の回転");
        System.out.println("--------------------------------");
    }

    public void processStimulus(Enumeration enumeration){

        WakeupCriterion event;
        AWTEvent[] awtEvent;
        while(enumeration.hasMoreElements()){
            event = (WakeupCriterion)enumeration.nextElement();
            if(event instanceof WakeupOnAWTEvent){             //AWTイベント
                awtEvent = ((WakeupOnAWTEvent)event).getAWTEvent();
                processMyKeyEvent(awtEvent);
            }else if(event instanceof WakeupOnElapsedFrames){  //フレーム経過
                processMyFrameEvent();
            }
        }
        wakeupOn(wakeupConditon);
    }

    private void processMyKeyEvent(AWTEvent[] event){

        for(int i=0; i<event.length; i++){
            if(((KeyEvent)(event[i])).getID()==KeyEvent.KEY_PRESSED){
                switch(((KeyEvent)(event[i])).getKeyCode()){
                    case KeyEvent.VK_R:    //回転
                        System.out.println("R pressed");
                        rotateFlag=true;
                        break;
                }
            }
        }
    }

    private void processMyFrameEvent(){

        if(rotateFlag==true){
            theta=theta+5;
            if(theta>360){
                theta=0;
                rotateFlag=false;
            }else{
                rot.rotY(theta*Math.PI/180.0);
                tg.setTransform(rot);
            }
        }
    }
}