step01
畫棋盤線
```java
///畫棋盤
size(500,700);
for(int x=50;x<=450;x+=50)
{
line(x,50,x,500);
}
///10條
for(int y=50;y<=500;y+=50)
{
line(50,y,450,y);
}
```
```java
int [][]board=
{
{4,5,3,2,1,2,3,5,4},
{0,0,0,0,0,0,0,0,0},
{0,6,0,0,0,0,0,6,0},
{7,0,7,0,7,0,7,0,7}
};//1:將 2:士 3:象 4:車 5:馬 6:包 7:卒
void setup()
{
size(500,550);
}
void draw()
{
for(int x=50;x<=450;x+=50)
{
line(x,50,x,250);
line(x,300,x,500);
}
for(int y=50;y<=500;y+=50)
{
line(50,y,450,y);
}
for(int i=0;i<4;i++)
{
for(int j=0;j<9;j++)
{
text(board[i][j],50+j*50,50+i*50);
}
}
}
```
```java
int [][]board=
{
{4,5,3,2,1,2,3,5,4},
{0,0,0,0,0,0,0,0,0},
{0,6,0,0,0,0,0,6,0},
{7,0,7,0,7,0,7,0,7}
};//1:將 2:士 3:象 4:車 5:馬 6:包 7:卒
String [] name={"將","士","象","車","馬","包","卒"};
void setup()
{
size(500,550);
PFont font=createFont("標楷體",30);
textFont(font);
textAlign(CENTER,CENTER);//字對齊
}
void draw()
{
for(int x=50;x<=450;x+=50)
{
line(x,50,x,250);
line(x,300,x,500);
}
for(int y=50;y<=500;y+=50)
{
line(50,y,450,y);
}
for(int i=0;i<4;i++)
{
for(int j=0;j<9;j++)
{
int id=board[i][j];//從1開始
if(id==0) continue;
text(name[id-1],50+j*50,50+i*50);
}
}
}
```
step02
紅黑象棋
```java
int [][]board=
{
{4,5,3,2,1,2,3,5,4},
{0,0,0,0,0,0,0,0,0},
{0,6,0,0,0,0,0,6,0},
{7,0,7,0,7,0,7,0,7},
{0,0,0,0,0,0,0,0,0},//上面黑色
{ 0, 0, 0, 0, 0, 0, 0, 0, 0},//下面紅色
{-7, 0,-7, 0,-7, 0,-7, 0,-7},
{0 ,-6, 0, 0, 0, 0, 0,-6, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0},
{-4,-5,-3,-2,-1,-2,-3,-5,-4}
};//1:將 2:士 3:象 4:車 5:馬 6:包 7:卒
String [] name={"將","士","象","車","馬","包","卒"};
String [] name2={"帥","仕","相","俥","傌","炮","兵"};
void setup()
{
size(500,550);
PFont font=createFont("標楷體",30);
textFont(font);
textAlign(CENTER,CENTER);//字對齊
}
void draw()
{
background(#F0B82C);
for(int x=50;x<=450;x+=50)
{
line(x,50,x,250);
line(x,300,x,500);
}
for(int y=50;y<=500;y+=50)
{
line(50,y,450,y);
}
for(int i=0;i<10;i++)
{
for(int j=0;j<9;j++)
{
int id=board[i][j];//從1開始
if(id==0) continue;
if(id>0)
{
fill(255);
ellipse(50+j*50,50+i*50,40,40);
fill(0);
text(name[id-1],50+j*50,50+i*50);
}
else if(id<0)
{
fill(255);
ellipse(50+j*50,50+i*50,40,40);
fill(255,0,0);
text(name2[-id-1],50+j*50,50+i*50);
}
}
}
}
```
```java
int [][]board=
{
{4,5,3,2,1,2,3,5,4},
{0,0,0,0,0,0,0,0,0},
{0,6,0,0,0,0,0,6,0},
{7,0,7,0,7,0,7,0,7},
{0,0,0,0,0,0,0,0,0},//上面黑色
{ 0, 0, 0, 0, 0, 0, 0, 0, 0},//下面紅色
{-7, 0,-7, 0,-7, 0,-7, 0,-7},
{0 ,-6, 0, 0, 0, 0, 0,-6, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0},
{-4,-5,-3,-2,-1,-2,-3,-5,-4}
};//1:將 2:士 3:象 4:車 5:馬 6:包 7:卒
String [] name={"將","士","象","車","馬","包","卒"};
String [] name2={"帥","仕","相","俥","傌","炮","兵"};
void setup()
{
size(500,550);
PFont font=createFont("標楷體",30);
textFont(font);
textAlign(CENTER,CENTER);//字對齊
}
void draw()
{
background(#F0B82C);
for(int x=50;x<=450;x+=50)
{
line(x,50,x,250);
line(x,300,x,500);
}
for(int y=50;y<=500;y+=50)
{
line(50,y,450,y);
}
for(int i=0;i<10;i++)
{
for(int j=0;j<9;j++)
{
int id=board[i][j];//從1開始
if(id==0) continue;
if(id>0)
{
fill(255);
ellipse(50+j*50,50+i*50,40,40);
fill(0);
text(name[id-1],50+j*50,50+i*50);
}
else if(id<0)
{
fill(255);
ellipse(50+j*50,50+i*50,40,40);
fill(255,0,0);
text(name2[-id-1],50+j*50,50+i*50);
}
}
}
}
void mousePressed()
{
for(int i=0;i<10;i++)
{
for(int j=0;j<9;j++)
{
if(dist(mouseX,mouseY,50+j*50,50+i*50)<20)
{
board[i][j]=1;
}
}
}
}
```
```java
int [][]board=
{
{4,5,3,2,1,2,3,5,4},
{0,0,0,0,0,0,0,0,0},
{0,6,0,0,0,0,0,6,0},
{7,0,7,0,7,0,7,0,7},
{0,0,0,0,0,0,0,0,0},//上面黑色
{ 0, 0, 0, 0, 0, 0, 0, 0, 0},//下面紅色
{-7, 0,-7, 0,-7, 0,-7, 0,-7},
{0 ,-6, 0, 0, 0, 0, 0,-6, 0},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0},
{-4,-5,-3,-2,-1,-2,-3,-5,-4}
};//1:將 2:士 3:象 4:車 5:馬 6:包 7:卒
String [] name={"將","士","象","車","馬","包","卒"};
String [] name2={"帥","仕","相","俥","傌","炮","兵"};
void setup()
{
size(500,550);
PFont font=createFont("標楷體",30);
textFont(font);
textAlign(CENTER,CENTER);//字對齊
}
void draw()
{
background(#F0B82C);
for(int x=50;x<=450;x+=50)
{
line(x,50,x,250);
line(x,300,x,500);
}
for(int y=50;y<=500;y+=50)
{
line(50,y,450,y);
}
for(int i=0;i<10;i++)
{
for(int j=0;j<9;j++)
{
int id=board[i][j];//從1開始
if(id==0) continue;
if(id>0)
{
fill(255);
ellipse(50+j*50,50+i*50,40,40);
fill(0);
text(name[id-1],50+j*50,50+i*50);
}
else if(id<0)
{
fill(255);
ellipse(50+j*50,50+i*50,40,40);
fill(255,0,0);
text(name2[-id-1],50+j*50,50+i*50);
}
}
}
if(handChess!=0) ellipse(mouseX,mouseY,40,40);
}
int handChess=0;
void mousePressed()
{
for(int i=0;i<10;i++)
{
for(int j=0;j<9;j++)
{
if(dist(mouseX,mouseY,50+j*50,50+i*50)<20)
{
handChess=board[i][j];
board[i][j]=0;//棋子不見
}//棋子放手上
}
}
}
void mouseReleased()
{
int i=(mouseY+25-50)/50;//y是50+i*50
int j=(mouseX+25-50)/50;//x是50+j*50
board[i][j]=handChess;//手上棋子放棋盤
handChess=0;//手上棋子清空
}
```
step03
暗棋
```java
int [][]board=
{
{ 1, 2, 2, 3, 3, 4, 4, 5},
{ 5, 6, 6, 7, 7, 7, 7, 7},
{-1,-2,-2,-3,-3,-4,-4,-5},
{-5,-6,-6,-7,-7,-7,-7,-7}
};//暗棋格子少,32子
void setup()
{
size(500,400);
PFont font=createFont("標楷體",30);
textFont(font);
textAlign(CENTER,CENTER);
}
void draw()
{
background(#F0B82C);
for(int x=50;x<=450;x+=50)
{
line(x,50,x,250);
}
for(int y=50;y<=250;y+=50)
{
line(50,y,450,y);
}
for(int i=0;i<4;i++)
{
for(int j=0;j<8;j++)
{
int id=board[i][j];
drawChess(50+25+j*50,50+25+i*50,id);
}
}
}
String [] name={"將","士","象","車","馬","包","卒"};
String [] name2={"帥","仕","相","俥","傌","炮","兵"};
void drawChess(int x,int y,int id)
{
fill(255);
ellipse(x,y,40,40);
if(id>0)
{
fill(0);
text(name[id-1],x,y-3);
}
else if(id<0)
{
fill(255,0,0);
text(name2[-id-1],x,y-3);
}
}
```
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