javaFX的timeline时间轴循环？？贪吃蛇
程序代码：package application;
import java.util.Iterator;
import java.util.LinkedList;
import javafx.animation.KeyFrame;
import javafx.animation.KeyValue;
import javafx.animation.Timeline;
import javafx.application.Application;
import javafx.event.EventHandler;
import javafx.stage.Stage;
import javafx.util.Duration;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.input.KeyEvent;
import javafx.scene.paint.Color;
import javafx.scene.shape.Arc;
import javafx.scene.shape.ArcType;
import javafx.scene.shape.Circle;
public class Main extends Application
{
@Override
public void start(Stage stage)
{
Group g = new Group();
Scene scene = new Scene(g,600,600);
//画蛇
LinkedList<Circle> list = new LinkedList<>();
for(int i=0;i<5;i++)
{
Circle cir = new Circle();
cir.setCenterX(275-35*i);
cir.setCenterY(200);
cir.setRadius(20);
cir.setFill(Color.rgb(0, 255 ,127));
list.add(cir);
}
Arc arc = new Arc();
arc.setFill(Color.rgb(0, 255 ,127) );
arc.setCenterX(310);
arc.setCenterY(200);
arc.setRadiusX(20);
arc.setRadiusY(20);
arc.setStartAngle(45);
arc.setLength(270);
arc.setType(ArcType.ROUND);
class Move
{
public void A()
{
System.out.println("A");
Timeline timeline=new Timeline();
KeyValue ARCxValue = new KeyValue(arc.centerXProperty(),arc.getCenterX()-50);
KeyFrame ARCkeyFrame=new KeyFrame(Duration.millis(1000), ARCxValue);
timeline.getKeyFrames().add(ARCkeyFrame);
//body
Iterator<Circle> iterator = list.iterator();
Circle cir1 = iterator.next();
KeyValue cir1xValue = new KeyValue(cir1.centerXProperty(),arc.getCenterX());
KeyValue cir1yValue = new KeyValue(cir1.centerYProperty(),arc.getCenterY());
KeyFrame keyFrame1=new KeyFrame(Duration.millis(1000), cir1xValue,cir1yValue);
timeline.getKeyFrames().add(keyFrame1);
Circle cir3 = iterator.next();
KeyValue cir3xValue = new KeyValue(cir3.centerXProperty(),cir1.getCenterX());
KeyValue cir3yValue = new KeyValue(cir3.centerYProperty(),cir1.getCenterY());
KeyFrame keyFrame2=new KeyFrame(Duration.millis(1000), cir3xValue,cir3yValue);
timeline.getKeyFrames().add(keyFrame2);
Circle cir4 = iterator.next();
KeyValue cir4xValue = new KeyValue(cir4.centerXProperty(),cir3.getCenterX());
KeyValue cir4yValue = new KeyValue(cir4.centerYProperty(),cir3.getCenterY());
KeyFrame keyFrame3=new KeyFrame(Duration.millis(1000), cir4xValue,cir4yValue);
timeline.getKeyFrames().add(keyFrame3);
Circle cir5 = iterator.next();
KeyValue cir5xValue = new KeyValue(cir5.centerXProperty(),cir4.getCenterX());
KeyValue cir5yValue = new KeyValue(cir5.centerYProperty(),cir4.getCenterY());
KeyFrame keyFrame4=new KeyFrame(Duration.millis(1000), cir5xValue,cir5yValue);
timeline.getKeyFrames().add(keyFrame4);
Circle cir6 = iterator.next();
KeyValue cir6xValue = new KeyValue(cir6.centerXProperty(),cir5.getCenterX());
KeyValue cir6yValue = new KeyValue(cir6.centerYProperty(),cir5.getCenterY());
KeyFrame keyFrame5=new KeyFrame(Duration.millis(1000), cir6xValue,cir6yValue);
timeline.getKeyFrames().add(keyFrame5);
timeline.play();
}
public void W()
{
System.out.println("W");
Timeline timeline=new Timeline();
//head
KeyValue ARCyValue = new KeyValue(arc.centerYProperty(),arc.getCenterY()-50);
KeyFrame ARCkeyFrame=new KeyFrame(Duration.millis(1000), ARCyValue);
timeline.getKeyFrames().add(ARCkeyFrame);
//body
Iterator<Circle> iterator = list.iterator();
Circle cir1 = iterator.next();
KeyValue cir1xValue = new KeyValue(cir1.centerXProperty(),arc.getCenterX());
KeyValue cir1yValue = new KeyValue(cir1.centerYProperty(),arc.getCenterY());
KeyFrame keyFrame1=new KeyFrame(Duration.millis(1000), cir1xValue,cir1yValue);
timeline.getKeyFrames().add(keyFrame1);
Circle cir3 = iterator.next();
KeyValue cir3xValue = new KeyValue(cir3.centerXProperty(),cir1.getCenterX());
KeyValue cir3yValue = new KeyValue(cir3.centerYProperty(),cir1.getCenterY());
KeyFrame keyFrame2=new KeyFrame(Duration.millis(1000), cir3xValue,cir3yValue);
timeline.getKeyFrames().add(keyFrame2);
Circle cir4 = iterator.next();
KeyValue cir4xValue = new KeyValue(cir4.centerXProperty(),cir3.getCenterX());
KeyValue cir4yValue = new KeyValue(cir4.centerYProperty(),cir3.getCenterY());
KeyFrame keyFrame3=new KeyFrame(Duration.millis(1000), cir4xValue,cir4yValue);
timeline.getKeyFrames().add(keyFrame3);
Circle cir5 = iterator.next();
KeyValue cir5xValue = new KeyValue(cir5.centerXProperty(),cir4.getCenterX());
KeyValue cir5yValue = new KeyValue(cir5.centerYProperty(),cir4.getCenterY());
KeyFrame keyFrame4=new KeyFrame(Duration.millis(1000), cir5xValue,cir5yValue);
timeline.getKeyFrames().add(keyFrame4);
Circle cir6 = iterator.next();
KeyValue cir6xValue = new KeyValue(cir6.centerXProperty(),cir5.getCenterX());
KeyValue cir6yValue = new KeyValue(cir6.centerYProperty(),cir5.getCenterY());
KeyFrame keyFrame5=new KeyFrame(Duration.millis(1000), cir6xValue,cir6yValue);
timeline.getKeyFrames().add(keyFrame5);
timeline.play();
}
public void S()
{
System.out.println("S");
Timeline timeline=new Timeline();
KeyValue ARCyValue = new KeyValue(arc.centerYProperty(),arc.getCenterY()+50);
KeyFrame ARCkeyFrame=new KeyFrame(Duration.millis(1000), ARCyValue);
timeline.getKeyFrames().add(ARCkeyFrame);
//body
Iterator<Circle> iterator = list.iterator();
Circle cir1 = iterator.next();
KeyValue cir1xValue = new KeyValue(cir1.centerXProperty(),arc.getCenterX());
KeyValue cir1yValue = new KeyValue(cir1.centerYProperty(),arc.getCenterY());
KeyFrame keyFrame1=new KeyFrame(Duration.millis(1000), cir1xValue,cir1yValue);
timeline.getKeyFrames().add(keyFrame1);
Circle cir3 = iterator.next();
KeyValue cir3xValue = new KeyValue(cir3.centerXProperty(),cir1.getCenterX());
KeyValue cir3yValue = new KeyValue(cir3.centerYProperty(),cir1.getCenterY());
KeyFrame keyFrame2=new KeyFrame(Duration.millis(1000), cir3xValue,cir3yValue);
timeline.getKeyFrames().add(keyFrame2);
Circle cir4 = iterator.next();
KeyValue cir4xValue = new KeyValue(cir4.centerXProperty(),cir3.getCenterX());
KeyValue cir4yValue = new KeyValue(cir4.centerYProperty(),cir3.getCenterY());
KeyFrame keyFrame3=new KeyFrame(Duration.millis(1000), cir4xValue,cir4yValue);
timeline.getKeyFrames().add(keyFrame3);
Circle cir5 = iterator.next();
KeyValue cir5xValue = new KeyValue(cir5.centerXProperty(),cir4.getCenterX());
KeyValue cir5yValue = new KeyValue(cir5.centerYProperty(),cir4.getCenterY());
KeyFrame keyFrame4=new KeyFrame(Duration.millis(1000), cir5xValue,cir5yValue);
timeline.getKeyFrames().add(keyFrame4);
Circle cir6 = iterator.next();
KeyValue cir6xValue = new KeyValue(cir6.centerXProperty(),cir5.getCenterX());
KeyValue cir6yValue = new KeyValue(cir6.centerYProperty(),cir5.getCenterY());
KeyFrame keyFrame5=new KeyFrame(Duration.millis(1000), cir6xValue,cir6yValue);
timeline.getKeyFrames().add(keyFrame5);
timeline.play();
}
public void D()
{
System.out.println("D");
Timeline timeline=new Timeline();
KeyValue ARCxValue = new KeyValue(arc.centerXProperty(),arc.getCenterX()+50);
KeyFrame ARCkeyFrame=new KeyFrame(Duration.millis(1000), ARCxValue);
timeline.getKeyFrames().add(ARCkeyFrame);
//body
Iterator<Circle> iterator = list.iterator();
Circle cir1 = iterator.next();
KeyValue cir1xValue = new KeyValue(cir1.centerXProperty(),arc.getCenterX());
KeyValue cir1yValue = new KeyValue(cir1.centerYProperty(),arc.getCenterY());
KeyFrame keyFrame1=new KeyFrame(Duration.millis(1000), cir1xValue,cir1yValue);
timeline.getKeyFrames().add(keyFrame1);
Circle cir3 = iterator.next();
KeyValue cir3xValue = new KeyValue(cir3.centerXProperty(),cir1.getCenterX());
KeyValue cir3yValue = new KeyValue(cir3.centerYProperty(),cir1.getCenterY());
KeyFrame keyFrame2=new KeyFrame(Duration.millis(1000), cir3xValue,cir3yValue);
timeline.getKeyFrames().add(keyFrame2);
Circle cir4 = iterator.next();
KeyValue cir4xValue = new KeyValue(cir4.centerXProperty(),cir3.getCenterX());
KeyValue cir4yValue = new KeyValue(cir4.centerYProperty(),cir3.getCenterY());
KeyFrame keyFrame3=new KeyFrame(Duration.millis(1000), cir4xValue,cir4yValue);
timeline.getKeyFrames().add(keyFrame3);
Circle cir5 = iterator.next();
KeyValue cir5xValue = new KeyValue(cir5.centerXProperty(),cir4.getCenterX());
KeyValue cir5yValue = new KeyValue(cir5.centerYProperty(),cir4.getCenterY());
KeyFrame keyFrame4=new KeyFrame(Duration.millis(1000), cir5xValue,cir5yValue);
timeline.getKeyFrames().add(keyFrame4);
Circle cir6 = iterator.next();
KeyValue cir6xValue = new KeyValue(cir6.centerXProperty(),cir5.getCenterX());
KeyValue cir6yValue = new KeyValue(cir6.centerYProperty(),cir5.getCenterY());
KeyFrame keyFrame5=new KeyFrame(Duration.millis(1000), cir6xValue,cir6yValue);
timeline.getKeyFrames().add(keyFrame5);
timeline.play();
}
}
//监听键盘事件
scene.setOnKeyReleased(new EventHandler<KeyEvent>()
{
public void handle(KeyEvent event)
{
Move move = new Move();
switch(event.getCode())
{
case W:
{
move.W();
break;
}
case S:
{
move.S();
break;
}
case A:
{
move.A();
break;
}
case D:
{
move.D();
break;
}
}
}
}
);
g.getChildren().addAll(list);
g.getChildren().add(arc);
stage.setScene(scene);
stage.show();
}
public static void main(String[] args) {
launch(args);
}
}
做的一个贪吃蛇的小游戏，设置wasd四个按键只能单步实现移动，加while循环似乎不行
求问：怎么实现按下一个键可以一直执行单步的循环移动？？？
