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国际跳棋java源代码 国际跳棋小程序( 六 )

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{
chessWhite_x[chessWhiteCount]=a*20;
chessWhite_y[chessWhiteCount]=b*20;
chessWhiteCount++;
}
}
public boolean checkWin(int a,int b,int checkColor)
{
int step=1,chessLink=1,chessLinkTest=1,chessCompare=0;
if(checkColor==1)
{
chessLink=1;
for(step=1;step=4;step++)
{
for(chessCompare=0;chessCompare=chessBlackCount;chessCompare++)
{
if(((a+step)*20==chessBlack_x[chessCompare])((b*20)==chessBlack_y[chessCompare]))
{
chessLink=chessLink+1;
if(chessLink==5)
{
return(true);
}
}
}
if(chessLink==(chessLinkTest+1))
chessLinkTest++;
else
break;
}
for(step=1;step=4;step++)
{
for(chessCompare=0;chessCompare=chessBlackCount;chessCompare++)
{
if(((a-step)*20==chessBlack_x[chessCompare])(b*20==chessBlack_y[chessCompare]))
{
chessLink++;
if(chessLink==5)
{
return(true);
}
}
}
if(chessLink==(chessLinkTest+1))
chessLinkTest++;
else
break;
}
chessLink=1;
chessLinkTest=1;
for(step=1;step=4;step++)
{
for(chessCompare=0;chessCompare=chessBlackCount;chessCompare++)
{
if((a*20==chessBlack_x[chessCompare])((b+step)*20==chessBlack_y[chessCompare]))
{
chessLink++;
if(chessLink==5)
{
return(true);
}
}
}
if(chessLink==(chessLinkTest+1))
chessLinkTest++;
else
break;
}
for(step=1;step=4;step++)
{
for(chessCompare=0;chessCompare=chessBlackCount;chessCompare++)
{
if((a*20==chessBlack_x[chessCompare])((b-step)*20==chessBlack_y[chessCompare]))
{
chessLink++;
if(chessLink==5)
{
return(true);
}
}
}
if(chessLink==(chessLinkTest+1))
chessLinkTest++;
else
break;
}
chessLink=1;
chessLinkTest=1;
for(step=1;step=4;step++)
{
for(chessCompare=0;chessCompare=chessBlackCount;chessCompare++)
{
if(((a-step)*20==chessBlack_x[chessCompare])((b+step)*20==chessBlack_y[chessCompare]))
{
chessLink++;
if(chessLink==5)
{
return(true);
}
}
}
if(chessLink==(chessLinkTest+1))
chessLinkTest++;
else
break;
}
for(step=1;step=4;step++)
{
for(chessCompare=0;chessCompare=chessBlackCount;chessCompare++)
{
if(((a+step)*20==chessBlack_x[chessCompare])((b-step)*20==chessBlack_y[chessCompare]))
{
chessLink++;
if(chessLink==5)
{
return(true);
}
}
}
if(chessLink==(chessLinkTest+1))
chessLinkTest++;
else
break;
}
chessLink=1;
chessLinkTest=1;
for(step=1;step=4;step++)
{
for(chessCompare=0;chessCompare=chessBlackCount;chessCompare++)
{
if(((a+step)*20==chessBlack_x[chessCompare])((b+step)*20==chessBlack_y[chessCompare]))
{
chessLink++;
if(chessLink==5)
{
return(true);
}
}
}
if(chessLink==(chessLinkTest+1))
chessLinkTest++;
else
break;
}
for(step=1;step=4;step++)
{
for(chessCompare=0;chessCompare=chessBlackCount;chessCompare++)
{
if(((a-step)*20==chessBlack_x[chessCompare])((b-step)*20==chessBlack_y[chessCompare]))
{
chessLink++;
if(chessLink==5)
{
return(true);
}
}
求java小游戏源代码表1. CheckerDrag.java
// CheckerDrag.javaimport java.awt.*;import java.awt.event.*;public class CheckerDrag extends java.applet.Applet{// Dimension of checkerboard square.// 棋盘上每个小方格国际跳棋java源代码的尺寸final static int SQUAREDIM = 40;// Dimension of checkerboard -- includes black outline.// 棋盘的尺寸 – 包括黑色的轮廓线final static int BOARDDIM = 8 * SQUAREDIM + 2;// Dimension of checker -- 3/4 the dimension of a square.// 棋子的尺寸 – 方格尺寸的3/4final static int CHECKERDIM = 3 * SQUAREDIM / 4;// Square colors are dark green or white.// 方格的颜色为深绿色或者白色final static Color darkGreen = new Color (0, 128, 0);// Dragging flag -- set to true when user presses mouse button over checker// and cleared to false when user releases mouse button.// 拖动标记 --当用户在棋子上按下鼠标按键时设为true国际跳棋java源代码，// 释放鼠标按键时设为falseboolean inDrag = false;// Left coordinate of checkerboard's upper-left corner.// 棋盘左上角的左方向坐标int boardx;// Top coordinate of checkerboard's upper-left corner.//棋盘左上角的上方向坐标int boardy;// Left coordinate of checker rectangle origin (upper-left corner).// 棋子矩形原点(左上角)的左方向坐标int ox;// Top coordinate of checker rectangle origin (upper-left corner).// 棋子矩形原点(左上角)的上方向坐标int oy;// Left displacement between mouse coordinates at time of press and checker// rectangle origin.// 在按键时的鼠标坐标与棋子矩形原点之间的左方向位移int relx;// Top displacement between mouse coordinates at time of press and checker// rectangle origin.// 在按键时的鼠标坐标与棋子矩形原点之间的上方向位移int rely;// Width of applet drawing area.// applet绘图区域的宽度int width;// Height of applet drawing area.// applet绘图区域的高度int height;// Image buffer.// 图像缓冲Image imBuffer;// Graphics context associated with image buffer.// 图像缓冲相关联的图形背景Graphics imG;public void init (){// Obtain the size of the applet's drawing area.// 获取applet绘图区域的尺寸width = getSize ().width;height = getSize ().height;// Create image buffer.// 创建图像缓冲imBuffer = createImage (width, height);// Retrieve graphics context associated with image buffer.// 取出图像缓冲相关联的图形背景imG = imBuffer.getGraphics ();// Initialize checkerboard's origin, so that board is centered.// 初始化棋盘的原点国际跳棋java源代码，使棋盘在屏幕上居中boardx = (width - BOARDDIM) / 2 + 1;boardy = (height - BOARDDIM) / 2 + 1;// Initialize checker's rectangle's starting origin so that checker is// centered in the square located in the top row and second column from// the left.// 初始化棋子矩形的起始原点国际跳棋java源代码，使得棋子在第一行左数第二列的方格里居中ox = boardx + SQUAREDIM + (SQUAREDIM - CHECKERDIM) / 2 + 1;oy = boardy + (SQUAREDIM - CHECKERDIM) / 2 + 1;// Attach a mouse listener to the applet. That listener listens for// mouse-button press and mouse-button release events.// 向applet添加一个用来监听鼠标按键的按下和释放事件的鼠标监听器addMouseListener (new MouseAdapter (){public void mousePressed (MouseEvent e){// Obtain mouse coordinates at time of press.// 获取按键时的鼠标坐标int x = e.getX ();int y = e.getY ();// If mouse is over draggable checker at time// of press (i.e., contains (x, y) returns// true), save distance between current mouse// coordinates and draggable checker origin// (which will always be positive) and set drag// flag to true (to indicate drag in progress).// 在按键时如果鼠标位于可拖动的棋子上方// （也就是contains (x, y)返回true） ， 则保存当前// 鼠标坐标与棋子的原点之间的距离（始终为正值）并且// 将拖动标志设为true（用来表明正处在拖动过程中）if (contains (x, y)){relx = x - ox;rely = y - oy;inDrag = true;}}boolean contains (int x, int y){// Calculate center of draggable checker.// 计算棋子的中心位置int cox = ox + CHECKERDIM / 2;int coy = oy + CHECKERDIM / 2;// Return true if (x, y) locates with bounds// of draggable checker. CHECKERDIM / 2 is the// radius.// 如果(x, y)仍处于棋子范围内则返回true// CHECKERDIM / 2为半径return (cox - x) * (cox - x) +(coy - y) * (coy - y)CHECKERDIM / 2 * CHECKERDIM / 2;}public void mouseReleased (MouseEvent e){// When mouse is released, clear inDrag (to// indicate no drag in progress) if inDrag is// already set.// 当鼠标按键被释放时，如果inDrag已经为true ， // 则将其置为false（用来表明不在拖动过程中）if (inDrag)inDrag = false;}});// Attach a mouse motion listener to the applet. That listener listens// for mouse drag events.//向applet添加一个用来监听鼠标拖动事件的鼠标运动监听器addMouseMotionListener (new MouseMotionAdapter (){public void mouseDragged (MouseEvent e){if (inDrag){// Calculate draggable checker's new// origin (the upper-left corner of// the checker rectangle).// 计算棋子新的原点（棋子矩形的左上角）int tmpox = e.getX () - relx;int tmpoy = e.getY () - rely;// If the checker is not being moved// (at least partly) off board,// assign the previously calculated// origin (tmpox, tmpoy) as the// permanent origin (ox, oy), and// redraw the display area (with the// draggable checker at the new// coordinates).// 如果棋子（至少是棋子的一部分）没有被// 移出棋盘，则将之前计算的原点// (tmpox, tmpoy)赋值给永久性的原点(ox, oy)，// 并且刷新显示区域（此时的棋子已经位于新坐标上）if (tmpoxboardxtmpoyboardytmpox + CHECKERDIMboardx + BOARDDIMtmpoy + CHECKERDIMboardy + BOARDDIM){ox = tmpox;oy = tmpoy;repaint ();}}}});}public void paint (Graphics g){// Paint the checkerboard over which the checker will be dragged.// 在棋子将要被拖动的位置上绘制棋盘paintCheckerBoard (imG, boardx, boardy);// Paint the checker that will be dragged.// 绘制即将被拖动的棋子paintChecker (imG, ox, oy);// Draw contents of image buffer.// 绘制图像缓冲的内容g.drawImage (imBuffer, 0, 0, this);}void paintChecker (Graphics g, int x, int y){// Set checker shadow color.// 设置棋子阴影的颜色g.setColor (Color.black);// Paint checker shadow.// 绘制棋子的阴影g.fillOval (x, y, CHECKERDIM, CHECKERDIM);// Set checker color.// 设置棋子颜色g.setColor (Color.red);// Paint checker.// 绘制棋子g.fillOval (x, y, CHECKERDIM - CHECKERDIM / 13, CHECKERDIM - CHECKERDIM / 13);}void paintCheckerBoard (Graphics g, int x, int y){// Paint checkerboard outline.// 绘制棋盘轮廓线g.setColor (Color.black);g.drawRect (x, y, 8 * SQUAREDIM + 1, 8 * SQUAREDIM + 1);// Paint checkerboard.// 绘制棋盘for (int row = 0; row8; row++){g.setColor (((row1) != 0) ? darkGreen : Color.white);for (int col = 0; col8; col++){g.fillRect (x + 1 + col * SQUAREDIM, y + 1 + row * SQUAREDIM,SQUAREDIM, SQUAREDIM);g.setColor ((g.getColor () == darkGreen) ? Color.white :darkGreen);}}}// The AWT invokes the update() method in response to the repaint() method// calls that are made as a checker is dragged. The default implementation// of this method, which is inherited from the Container class, clears the// applet's drawing area to the background color prior to calling paint().// This clearing followed by drawing causes flicker. CheckerDrag overrides// update() to prevent the background from being cleared, which eliminates// the flicker.// AWT调用国际跳棋java源代码了update()方法来响应拖动棋子时所调用的repaint()方法 。该方法从// Container类继承的默认实现会在调用paint()之前，将applet的绘图区域清除// 为背景色，这种绘制之后的清除就导致了闪烁 。CheckerDrag重写了update()来// 防止背景被清除 ， 从而消除了闪烁 。public void update (Graphics g){paint (g);}}

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