| package game; | |
| import java.awt.image.BufferedImage; | |
| import java.util.ArrayList; | |
| import java.util.List; | |
| public class Bird { | |
| //鸟的图片 | |
| BufferedImage img; | |
| int x; | |
| int y; | |
| int w; | |
| int h; | |
| static int i = 0; | |
| //用来装一组图片的容器 | |
| List<BufferedImage> list; | |
| double v0 = 8;//初速度 | |
| double t = 0.3;//时间 | |
| double s = 0;//距离 | |
| double g = 1.2;//重力 | |
| public Bird() { | |
| img = Tools.getImg("../img/bird"+i+"_0.png"); | |
| x = 80; | |
| y = 245; | |
| w = img.getWidth(); | |
| h = img.getHeight(); | |
| //初始化装图片的容器 | |
| list = new ArrayList<BufferedImage>(); | |
| //加图片 | |
| list.add(Tools.getImg("../img/bird"+i+"_0.png")); | |
| list.add(Tools.getImg("../img/bird"+i+"_1.png")); | |
| list.add(Tools.getImg("../img/bird"+i+"_2.png")); | |
| } | |
| int index = 0;//标记取下标，来获取图片 | |
| public void fly() { | |
| img = list.get(index%list.size()); | |
| index++; | |
| } | |
| //小鸟运动 | |
| public void move() { | |
| //计算小鸟上抛距离 | |
| s = v0 * t;//小鸟y坐标 | |
| y = (int)(y - s);//初始坐标-y坐标 | |
| double v1 = v0 - g*t;//计算小鸟到达最高点时速度 | |
| v0 = v1;//最高点速度=下落时的速度; | |
| } | |
| public void moveUp() { | |
| v0 = 8; | |
| } | |
| public boolean hit() { | |
| if(y <=-10 || y>= 360) { | |
| return true; | |
| } | |
| return false; | |
| } | |
| public boolean hit(Column column) { | |
| if(x >= column.x - w + 14 && x <= column.x + column.w - 14) { | |
| if(y > column.h + column.y - 12 && y < column.h + column.y + 24 + 50) { | |
| return false; | |
| } | |
| return true;//撞到了 | |
| } | |
| return false; | |
| } | |
| public void getj(int j) { | |
| i = j; | |
| } | |
| } | |