Java學習筆記_17 專案實戰之天天酷跑(四):遊戲主介面
阿新 • • 發佈:2020-12-02
此文轉載自:https://blog.csdn.net/qq_45909299/article/details/110306321#commentBox
接上文,本文將實現遊戲主介面,功能如下:
移動的背景圖片、動態的玩家、玩家的移動功能、
五種障礙物持續出現、玩家和障礙物的碰撞、
暫停、繼續功能。
首先,看一下整體效果:
動圖實在太大,幾秒鐘的 Gif 就十幾兆了。無奈,圖片展示效果。
跳躍、得分、下落、障礙物:
碰到障礙物後,玩家被推著走。
下面,分別解釋一下每個功能的邏輯:
一、建立一個顯示窗體,承載遊戲的主面板類。
GameFrame.java
package cn.sqc.runday.view;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import cn.sqc.runday.controller.GamePanel;
/**
* @author Huey
*2020-11-27 下午12:40:22
* 遊戲主介面:顯示窗體,承載遊戲的主面板類
*/
public class GameFrame extends JFrame {
//設定窗體寬高屬性
public static final int WIDTH=1500;
public static final int HEIGHT=900;
public GameFrame() {
//2.4建立遊戲面板物件,並新增到窗體上去
GamePanel panel = new GamePanel ();
panel.action();//程式啟動的方法
this.addKeyListener(panel);//誰實現就監聽誰
this.add(panel);
/**1.設定窗體基本屬性*/
this.setSize(WIDTH,HEIGHT);
this.setLocationRelativeTo(null);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setIconImage(new ImageIcon("Image/115.png").getImage());
this.setUndecorated (true);
this.setVisible(true);
}
public static void main(String[] args) {
new GameFrame();
}
}
二、遊戲主面板類(核心邏輯類):
1、背景圖片滾動效果
使用兩張背景圖片,實現背景圖片滾動效果的邏輯如下:
下面用動圖演示一下:
2、玩家動態效果
我國早期很有名的一部動畫片《大鬧天宮》,由於當時沒有電腦,所以需要一幀一幀的畫,隨後快速播放圖片,形成動態的畫面(我願稱之:真——動畫!!!),併為之配音,短短10分鐘的動畫卻要畫7000到10000張原畫!
而此處,我們的玩家的奔跑姿態,同理是由九張圖片構成。
下面動圖演示:
下面是實現玩家的(生成、移動、繪製)的基本程式碼,後面的障礙物的實現,也都遵循這一編寫邏輯。
為更方便讀懂程式碼,已盡力註釋,若仍有不清楚的地方,歡迎留言交流。
Person.java
package cn.sqc.runday.model;
import java.awt.Graphics;
import java.awt.Image;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import cn.sqc.runday.view.GameFrame;
/**
* @author Huey
* @date 2020-11-23
* 玩家的實體類
*/
public class Person {//1.宣告屬性
private Image image;//1.1 玩家當前顯示圖片
private Image[] images;//1.2 玩家所有圖片
public static final int WIDTH = 120;//1.3玩家寬高
public static final int HEIGHT = 120;
//1.4玩家初始位置座標
private int x,y;
int index;//下面用作切換圖片
//玩家得分
private int score;
//玩家跑酷距離
private int distance;
public Person() {//2.賦值
//給圖片陣列images賦值
init();//2.1 先寫,會提示要不要實現!自動生成方法
//預設當前顯示圖片位第一張圖片 2.6
image = images[0];
x = 90;//2.7
y = 580;//腳踩地板
index = 0;
score = 0;
distance = 0;
}
//玩家自由下落方法5.1
public void drop() {
y += 5;
if(y>=580){// 下落歸下落,也得溫柔點,不能讓小人兒踩破了地板
y = 580;
}
}
//玩家移動的方法
public void step(){
//玩家圖片的切換
image = images[index ++ /3%images.length];
//玩家座標改變(玩家座標通過鍵盤控制,此次不做處理)
}
//繪製玩家的方法
public void paintPerson(Graphics g){
g.drawImage(image, x, y, WIDTH, HEIGHT, null);
}
//判斷玩家是否越界的方法
public boolean outOfBounds(){
return this.x >= GameFrame.WIDTH || this.x <= -WIDTH;
}
private void init() {//2.2
images = new Image[9];
for(int i = 0; i<images.length; i++){//2.3
try {//2.5
images[i] = ImageIO.read(new File("Image/"+(i+1) + ".png"));//2.4
} catch (IOException e) {//2.5
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
//2.8 右鍵,Source,GGAS
public Image getImage() {
return image;
}
public void setImage(Image image) {
this.image = image;
}
public Image[] getImages() {
return images;
}
public void setImages(Image[] images) {
this.images = images;
}
public int getX() {
return x;
}
public void setX(int x) {
this.x = x;
}
public int getY() {
return y;
}
public void setY(int y) {
this.y = y;
}
public static int getWidth() {
return WIDTH;
}
public static int getHeight() {
return HEIGHT;
}
public int getIndex() {
return index;
}
public void setIndex(int index) {
this.index = index;
}
public int getScore() {
return score;
}
public void setScore(int score) {
this.score = score;
}
public int getDistance() {
return distance;
}
public void setDistance(int distance) {
this.distance = distance;
}
}
3、幾種障礙物的出現
障礙物一:螃蟹
package cn.sqc.runday.model;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Paint;
import java.io.File;
import javax.imageio.ImageIO;
import cn.sqc.runday.view.GameFrame;
public class Barrs_1 {
private Image image;
private Image [] images;
public static final int WIDTH=100;
public static final int HEIGHT=110;
private int x,y;
int index;
private int speed;
public Barrs_1() {// 螃蟹!
images = new Image[2];
try {
images[0]=ImageIO.read(new File("image/a2.png"));
images[1]=ImageIO.read(new File("image/a4.png"));
} catch (Exception e) {
// TODO: handle exception
}
image = images[0];
x=GameFrame.WIDTH+100;
y=580;
speed =30;
index = 0;
}
public void step() {//切換圖片
image =images[index++/5%images.length];
x-=speed;//切換圖片實現螃蟹爪子張合的動態效果的同時,使其向左移動
}
public void paintBarrs(Graphics g) {
g.drawImage(image, x,y,WIDTH,HEIGHT, null);
}
public boolean outofBounds(){
return this.x <=-WIDTH;
}
public Image getImage() {
return image;
}
public void setImage(Image image) {
this.image = image;
}
public Image[] getImages() {
return images;
}
public void setImages(Image[] images) {
this.images = images;
}
public int getX() {
return x;
}
public void setX(int x) {
this.x = x;
}
public int getY() {
return y;
}
public void setY(int y) {
this.y = y;
}
public int getIndex() {
return index;
}
public void setIndex(int index) {
this.index = index;
}
public int getSpeed() {
return speed;
}
public void setSpeed(int speed) {
this.speed = speed;
}
public static int getWidth() {
return WIDTH;
}
public static int getHeight() {
return HEIGHT;
}
}
需要注意的是,在建立後,記得新增set、get方法。以便在面板類中對其障礙物進行操作。
障礙物二:寵物
與其稱之障礙物,不如說它是個跟著玩家的小跟班。
package cn.sqc.runday.model;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.KeyListener;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import cn.sqc.runday.view.GameFrame;
public class Barrs_2{ // 寵物!
private Image image;
private Image images [] ;
public static final int WIDTH= 70;
public static final int HEIGHT = 60;
private int x,y;
int index;
public Barrs_2() {
init();
image = images[0];
x=300;
y=460;
}
public void drop() {
y ++;
if(y>=460){
y = 460;
}
}
public void step(){
image = images[index++/2%images.length];
}
public void paintBarrs(Graphics g) {
g.drawImage(image, x,y,WIDTH,HEIGHT, null);
}
public boolean outofBounds() {
return this.x<=-WIDTH;
}
public void init(){
images = new Image[6];
for( int i=0;i<6;i++){
try {
images[i]=ImageIO.read(new File ("Image/"+"d"+(i+1)+".png"));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
public Image getImage() {
return image;
}
public void setImage(Image image) {
this.image = image;
}
public Image[] getImages() {
return images;
}
public void setImages(Image[] images) {
this.images = images;
}
public int getX() {
return x;
}
public void setX(int x) {
this.x = x;
}
public int getY() {
return y;
}
public void setY(int y) {
this.y = y;
}
public int getIndex() {
return index;
}
public void setIndex(int index) {
this.index = index;
}
public static int getWidht() {
return WIDTH;
}
public static int getHeight() {
return HEIGHT;
}
}
障礙物三、導彈
package cn.sqc.runday.model;
import java.awt.Graphics;
import java.awt.Image;
import java.io.File;
import javax.imageio.ImageIO;
import cn.sqc.runday.view.GameFrame;
public class Barrs_3 {// 導彈!
private Image image;
private int x,y;
public static final int WIDTH = 150;
public static final int HEIGHT=70;
private int speed;
public Barrs_3() {
try {
image = ImageIO.read(new File("image/daodan.png"));
} catch (Exception e) {
// TODO: handle exception
}
x=GameFrame.WIDTH+1000;
y=450;
speed = 25 ;
}
public void step(){
x-=speed;
}
public void paintBarrs(Graphics g) {
g.drawImage(image, x, y, WIDTH, HEIGHT, null);
}
public boolean outofBounds(){
return this.x<=-WIDTH;
}
public Image getImage() {
return image;
}
public void setImage(Image image) {
this.image = image;
}
public int getX() {
return x;
}
public void setX(int x) {
this.x = x;
}
public int getY() {
return y;
}
public void setY(int y) {
this.y = y;
}
public int getSpeed() {
return speed;
}
public void setSpeed(int speed) {
this.speed = speed;
}
public static int getWidth() {
return WIDTH;
}
public static int getHeight() {
return HEIGHT;
}
}
障礙物四:魚叉等障礙物
package cn.sqc.runday.model;
import java.awt.Graphics;
import java.awt.Image;
import java.io.File;
import java.util.Random;
import javax.imageio.ImageIO;
import cn.sqc.runday.view.GameFrame;
public class Barrs_4 {// 魚叉障礙物!
private Image image;
private Image images[];
public static final int WIDTH =150;
public static final int HEIGHT =350;
private int x,y;
public Barrs_4() {//構造方法
Random random = new Random();
images = new Image[4] ;
try {
images[0] = ImageIO.read(new File("image/11.png"));
images[1]= ImageIO.read(new File("image/12.png"));
images[2]= ImageIO.read(new File("image/13.png"));
images[3]= ImageIO.read(new File("image/14.png"));
} catch (Exception e) {
// TODO: handle exception
}
image= images[random.nextInt(4)];
x=GameFrame.WIDTH+1500;
y=0;
}
public void step(){
x-=20;
}
public void paintBarrs(Graphics g){
g.drawImage(image, x, y, WIDTH, HEIGHT, null);
}
public boolean outofBounds(){
return this.x<=-WIDTH;
}
public Image getImage() {
return image;
}
public void setImage(Image image) {
this.image = image;
}
public Image[] getImages() {
return images;
}
public void setImages(Image[] images) {
this.images = images;
}
public int getX() {
return x;
}
public void setX(int x) {
this.x = x;
}
public int getY() {
return y;
}
public void setY(int y) {
this.y = y;
}
public static int getWidth() {
return WIDTH;
}
public static int getHeight() {
return HEIGHT;
}
}
障礙物五、金幣
在此,暫且先不寫金幣的動態效果。
package cn.sqc.runday.model;
import java.awt.Graphics;
import java.awt.Image;
import java.io.File;
import java.io.IOException;
import java.util.Random;
import javax.imageio.ImageIO;
import cn.sqc.runday.view.GameFrame;
/**
* @author Huey
*2020-11-30 下午03:44:51
*金幣障礙物類
*
*/
public class Barrs_5 {
private Image image;//當前顯示圖片
public static final int WIDTH = 30;
public static final int HEIGHT = 30;
private int x,y;
private int speed;
Random random = new Random();
public Barrs_5() {
try {
image = ImageIO.read(new File("Image/"+(random.nextInt(6) + 21) + ".png"));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
x = GameFrame.WIDTH + 10;
y = random.nextInt(600);
speed = 20;
}
public void step(){
x -= speed;
}
public void paintBarrs(Graphics g){
g.drawImage(image, x, y, WIDTH, HEIGHT, null);
}
public boolean outofBounds() {
return this.x<=-WIDTH;
}
public Image getImage() {
return image;
}
public void setImage(Image image) {
this.image = image;
}
public int getX() {
return x;
}
public void setX(int x) {
this.x = x;
}
public int getY() {
return y;
}
public void setY(int y) {
this.y = y;
}
public int getSpeed() {
return speed;
}
public void setSpeed(int speed) {
this.speed = speed;
}
public Random getRandom() {
return random;
}
public void setRandom(Random random) {
this.random = random;
}
public static int getWidth() {
return WIDTH;
}
public static int getHeight() {
return HEIGHT;
}
}
4、玩家和障礙物的碰撞邏輯
以玩家與導彈的碰撞舉例:
for(int i = 0;i<barrs3.length;i++){
if(person.getX() + Person.WIDTH >= barrs3[i].getX() &&
person.getX() <= barrs3[i].getX() + Barrs_3.WIDTH &&
person .getY() +Person.getHeight() >= barrs3[i].getY() &&
person.getY() <= barrs3[i].getY () + Barrs_3.HEIGHT){
if(person.getX() + Person.WIDTH <= barrs3[i].getX() + Barrs_3.WIDTH){//玩家的寬度(120px)是比障礙物小的
//左碰撞
person.setX(barrs3[i].getX() - Barrs_3.WIDTH);
}else{
//右碰撞
person.setX(barrs3[i].getX()+ Barrs_3.WIDTH );
}
}
}
以下動圖演示了玩家從右邊與障礙物b發生碰撞和從左邊碰撞的邏輯,上下碰撞同理。
上下左右碰撞的邏輯程式碼,在動圖下方:
5、暫停、繼續邏輯
在監聽鍵盤按鍵的方法中。
程式碼如下:
此處的 flag 來源於上面程式啟動的方法中,不難看出只要按了空格鍵,就能實現生成、移動、繪製方法的暫停,也就相當於畫面的靜止、遊戲的暫停!
6、結束邏輯
後面再實現。
個人學習筆記,若有誤還望不吝賜教。