所以我正在尝试用java制作一个游戏，它将显示一个图像网格作为背景，现在它只是草，偶尔有石头作为我的图像，当它工作时，我得到一个32的大网格显示32 张图片符合预期，但大约三分之二的时间，我的面板中没有出现任何内容！
为了解决问题，我已经消除了很多功能，当我运行代码时，即使没有每秒重新绘制几次，它仍然只能在某些时候工作。
主班
import javax.swing.JFrame;
public class Main {
public static void main(String[] args) {
//Creating a new frame for the whole game and everything
JFrame frame = new JFrame("Lawlz this is my game");
frame.setSize(800,800);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
frame.setResizable(false);
//adding the game panel to the main frame
frame.add(new GameFrame());
}
}
游戏框架类（制作面板的地方） 这是几乎所有内容都被注释掉的代码。即使是动画和播放器类，但它仍然不会显示任何东西大约一半的时间。
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.Random;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Timer;
public class GameFrame extends JPanel {//implements ActionListener {
Timer mainTimer;
Player player;
Random rand = new Random();
Grid GameGrid = new Grid(25, 25);
int enemyCount = 5;
//Constructer!
public GameFrame()
{
setFocusable(true);
//player = new Player(100,100);
}
//Does all of the drawing for the game
public void paint(Graphics g)
{
//Sends to the JPanel class (super class)
super.paint(g);
//gets a graphics 2d object
Graphics2D g2d = (Graphics2D)g;
GameGrid.draw(g2d);
}
}
GameGrid 类，它基本上包含许多“网格空间”对象，每个对象基本上只是一个图像。在这一点上，它还负责打印出使用 draw() 方法绘制的大部分内容
import java.awt.Graphics2D;
import java.util.ArrayList;
public class Grid {
ArrayList<GridSpace> grid = new ArrayList<GridSpace>();
int width;
int height;
public Grid(int w, int h)
{
width = w;
height = h;
//Temporary for creating the x and y values by using the size of the images
int gw = new GridSpace(0,0).getGridImg().getWidth(null);
int gh = new GridSpace(0,0).getGridImg().getHeight(null);
for(int i = 0; i < h; i++)
{
for(int n = 0; n < w; n++)
{
grid.add(new GridSpace(n*gw,i*gh)); //GridSpace(n*ImageWidth, i*ImageHeight)
}
}
}
public void draw(Graphics2D g2d)
{
for(int i = 0; i < width; i++)
{
for(int n = 0; n < height; n++)
{
GridSpace tempSpace = GetGridSpaceByID(GetCoordinates(n,i)); //gets the GridSpace object for this corrdinate
g2d.drawImage(tempSpace.getGridImg(),tempSpace.x,tempSpace.y,null);
}
}
}
public void test(Graphics2D g2d)
{
GridSpace tempSpace = GetGridSpaceByID(GetCoordinates(0,0));
g2d.drawImage(tempSpace.getGridImg(),tempSpace.x,tempSpace.y,null);
}
public GridSpace GetGridSpaceByID(int n)
{
return grid.get(n);
}
public int GetCoordinates(int x, int y)
{
return x + y * width;
}
}
最后，基本上只存储图像的 GridSpace 对象
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.image.CropImageFilter;
import java.awt.image.FilteredImageSource;
import java.util.Random;
import javax.swing.ImageIcon;
public class GridSpace {
Random r = new Random();
ImageIcon ic;
int x = 0;
int y = 0;
public GridSpace(int x,int y)
{
this.x = x;
this.y = y;
//Stores an image for this grid space
//ic = new ImageIcon("C:\\Users\\Ben\\Desktop\\pic1.png");
if(r.nextInt(10) < 9)
{
ic = new ImageIcon("C:\\Users\\Ben\\Desktop\\Video Game\\grass1.jpg");
}
else
{
ic = new ImageIcon("C:\\Users\\Ben\\Desktop\\Video Game\\grass2.jpg");
}
}
public Image getGridImg()
{
//Image image = ic.getImage();
return ic.getImage();
}
}