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chess.m
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chess.m
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function chess(com,piece_info)
% Constant values
nSize = 60;
nRowNum = 8; %行数
nColNum = 9; %列数
offset_x = 0.5;
offset_y = 0.5;%页边距
chess_name = {{'帥','仕','相','馬','車','炮','兵'},{'将','士','象','马','车','炮','卒'}};
chess_type = [5 4 3 2 1 2 3 4 5 6 6 7 7 7 7 7]; %棋子的布局，数字代表上面的序列
global piece_infos
global camera
% global variables
chess_x = -ones(2,16);
chess_y = -ones(2,16);
pos_chess = zeros(nRowNum+1,nColNum+1);
cur_turn = 1;
cur_cid = 0;
hText = zeros(2,16);
cur_xy=zeros(1,2);
aim_xy=zeros(1,2);
cur_xy_piece_r=zeros(1,2);
aim_xy_piece_r=zeros(1,2);
cur_xy_board_r=zeros(1,2);
aim_xy_board_r=zeros(1,2);
cur_xy_piece_b=zeros(1,2);
aim_xy_piece_b=zeros(1,2);
% cur_xy_board_b=zeros(1,2);
% aim_xy_board_b=zeros(1,2);
x1=0;
x2=0;
x3=0;
y1=0;
y2=0;
y3=0;
move_or_kill=0;
figure(1),hold on,axis([-offset_x nColNum+offset_x -offset_y nRowNum+offset_y]) %轴限制 前两个X，后两个Y
axis equal % 轴的设置，可以改tight，auto，mormal 等
% axis off
set(1,'WindowButtonDownFcn',@OnWindowButtonDown);
set(1,'name','红');
InitializeChessPosition;
DrawBoard;
DrawAllChess;
%-------------------
function DrawBoard()
for k = 1:2
for r = 1:nRowNum+1
x = [(k-1)*5 4+(k-1)*5];
y = [(r-1) (r-1)];
plot(x,y,'b-')
end
for c = 1:nColNum+1
x = [(c-1) (c-1)];
y = [0 nRowNum];
plot(x,y,'b-')
end
x = [0 2] + (k-1)*7;
y = [3 5];
plot(x,y,'b-')
x = [0 2] + (k-1)*7;
y = [5 3];
plot(x,y,'b-')
end
end
%-------------------
function DrawAllChess() %drawchess和 initialchess 都要改
colors = 'rk';
for k = 1:2
for i = 1:16
hText(k,i) = text(chess_x(k,i)-0.4,chess_y(k,i),['\fontsize{30}' chess_name{k}{chess_type(i)}],'color',colors(k));
end
end
end
%-------------------
function InitializeChessPosition()
chess_x(:,1:9) = [zeros(1,9);9*ones(1,9)];
chess_x(:,10:11) = [2 2;7 7];
chess_x(:,12:16) = [3*ones(1,5); 6*ones(1,5)];
chess_y(:,1:9) = [0:8;0:8];
chess_y(:,10) = [1;1];
chess_y(:,11) = [7;7];
chess_y(:,12:16) = [0:2:8;0:2:8];
pos_chess = zeros(nRowNum+1,nColNum+1);
pos_chess(:,1) = [1:9]';
pos_chess(:,nColNum+1) = [1:9]'+16;
pos_chess(2,3) = 10;
pos_chess(2,nColNum-1) = 10+16;
pos_chess(8,3) = 11;
pos_chess(8,nColNum-1) = 11+16;
pos_chess(1:2:9,4) = [12:16];
pos_chess(1:2:9,nColNum-2) = [12:16]+16;
end
%-------------------
function OnWindowButtonDown(src,evnt)
%........................................red...........................
if cur_turn == 1
pt = get(gca,'CurrentPoint');
x = round(pt(1,1));
y = round(pt(1,2));
play_chess_red(x,y);
%change the piece_info
end
%........................................black.............................
%
%flag=motion_detection
if cur_turn == 2
%比较两张piece_info 得到两个（x，y）
% ...................test .............................
% play_chess(9,6);
% play_chess(7,4);
% ......................................................
% if (input('如果已经下完，请按Y：','s') =='y') %代替motion detection
pause(8);
pic2=getsnapshot(camera);
% pic2=imread('3.jpg');
im_board_orig_color = im2double(pic2);
piece_infos_new = chess_state_detection(im_board_orig_color);
%check the difference beteween 2 piece_info
[width,high]=size( piece_infos_new);
for i =1:width
for j=1:high
if isequal(piece_infos_new(i,j).name,piece_infos(i,j).name) %未改变的棋子
fprintf('0')
elseif (~isequal(piece_infos(i,j).name,[]))&&(isequal(piece_infos_new(i,j).name,[]))
x1=i
y1=j %chess was placed
[x1,y1]=piece_fig(x1,y1)
elseif (isequal(piece_infos(i,j).name,[]))&&(~isequal(piece_infos_new(i,j).name,[])) %move
x2=i
y2=j
[x2,y2]=piece_fig(x2,y2)
else %kill
x3=i
y3=j
[x3,y3]=piece_fig(x3,y3)
move_or_kill=1;
end
end
end
play_chess_black(x1,y1);
if move_or_kill==1
play_chess_black(x3,y3)
move_or_kill==0;
else
play_chess_black(x2,y2)
end
end
% end
end
%-------------------
function flag = CanMove(x,y)
flag = 1;
oldx = chess_x(cur_turn,cur_cid);
oldy = chess_y(cur_turn,cur_cid);
switch chess_type(cur_cid)
case 1% 将
% move 1 step
if ~(x==oldx && abs(y-oldy)==1) && ~(y==oldy && abs(x-oldx)==1)
flag = 0;
return
end
% out area
if cur_turn==1
if ~(x>=0 && x<=2 && y>=3 && y<=5)
flag = 0;
return
end
else
if ~(x>=7 && x<=9 && y>=3 && y<=5)
flag = 0;
return
end
end
case 2% 士
% move 1 step
if ~(abs(x-oldx)==1 && abs(y-oldy)==1)
flag = 0;
return
end
% out area
if cur_turn==1
if ~(x>=0 && x<=2 && y>=3 && y<=5)
flag = 0;
return
end
else
if ~(x>=7 && x<=9 && y>=3 && y<=5)
flag = 0;
return
end
end
case 3% 象
% move 1 step
if ~(abs(x-oldx)==2 && abs(y-oldy)==2)
flag = 0;
return
end
% out area
if cur_turn==1
if ~(x>=0 && x<=4)
flag = 0;
return
end
else
if ~(x>=5 && x<=9)
flag = 0;
return
end
end
% in the way
mx = (x+oldx)/2;
my = (y+oldy)/2;
if pos_chess(my+1,mx+1)~=0
flag = 0;
return
end
case 4% 马
% move 1 step
if ~(abs(x-oldx)==1 && abs(y-oldy)==2) && ~(abs(x-oldx)==2 && abs(y-oldy)==1)
flag = 0;
return
end
% in the way
if abs(y-oldy)==2
mx = oldx;
my = (y+oldy)/2;
else
mx = (x+oldx)/2;
my = oldy;
end
if pos_chess(my+1,mx+1)~=0
flag = 0;
return
end
case 5% 车
if ~(x==oldx && y~=oldy) && ~(x~=oldx && y==oldy)
flag = 0;
return
end
% no chess in the way
if x==oldx
inc = 1;
if oldy>y
inc = -1;
end
if ~isempty(find(pos_chess(oldy+1+inc:inc:y+1-inc,x+1)~=0))
flag = 0;
return
end
else
inc = 1;
if oldx>x
inc = -1;
end
if ~isempty(find(pos_chess(y+1,oldx+1+inc:inc:x+1-inc)~=0))
flag = 0;
return
end
end
case 6% 炮
if ~(x==oldx && y~=oldy) && ~(x~=oldx && y==oldy)
flag = 0;
return
end
% no chess in the way
if x==oldx
inc = 1;
if oldy>y
inc = -1;
end
if pos_chess(y+1,x+1)~=0
if ~(length(find(pos_chess(oldy+1+inc:inc:y+1-inc,x+1)~=0))==1)
flag = 0;
return
end
else
if ~(isempty(find(pos_chess(oldy+1+inc:inc:y+1-inc,x+1)~=0)))
flag = 0;
return
end
end
else
inc = 1;
if oldx>x
inc = -1;
end
if pos_chess(y+1,x+1)~=0
if ~(length(find(pos_chess(y+1,oldx+1+inc:inc:x+1-inc)~=0))==1)
flag = 0;
return
end
else
if ~(isempty(find(pos_chess(y+1,oldx+1+inc:inc:x+1-inc)~=0)))
flag = 0;
return
end
end
end
case 7% 兵
if cur_turn==1
if oldx<=4
if ~(y==oldy&&x-oldx==1)
flag = 0;
return
end
else% pass river
if ~(y==oldy&&x-oldx==1) && ~(abs(y-oldy)==1&&x==oldx)
flag = 0;
return
end
end
else
if oldx>=5
if ~(y==oldy&&x-oldx==-1)
flag = 0;
return
end
else% pass river
if ~(y==oldy&&x-oldx==-1) && ~(abs(y-oldy)==1&&x==oldx)
flag = 0;
return
end
end
end
end
end
%-------------------
function MoveChess(x,y)
set(hText(cur_turn,cur_cid),'Position',[x-0.4 y]);
pos_chess(chess_y(cur_turn,cur_cid)+1,chess_x(cur_turn,cur_cid)+1) = 0;
pos_chess(y+1,x+1) = cur_cid+(cur_turn-1)*16;
chess_x(cur_turn,cur_cid) = x;
chess_y(cur_turn,cur_cid) = y;
end
%-------------------
function KillChess(kt,kc)
set(hText(kt,kc),'visible','off');
MoveChess(chess_x(kt,kc),chess_y(kt,kc));
%ChangeTurn();
sname = {'红','黑'};
if kc==5
h = msgbox([sname{3-kt} '方获胜!'], '象棋', 'modal');
% % new game
% cur_turn = 1;
% cur_cid = 0;
% InitializeChessPosition;
% delete(hText)
% DrawAllChess;
end
end
%-------------------
function ChangeTurn()
set(hText(cur_turn,cur_cid),'BackgroundColor','none');
cur_turn = 3-cur_turn;
cur_cid = 0;
sname = {'红','黑'};
set(1,'name',sname{cur_turn})
% 将见帅
if chess_y(1,5)==chess_y(2,5)
if isempty(find(pos_chess(chess_y(1,5)+1,chess_x(1,5)+1+1:chess_x(2,5)-1+1)))
h = msgbox([sname{cur_turn} '方获胜!'], '象棋', 'modal');
end
end
end
function play_chess_red(x,y)
%get x,y,
if x<0 || x>nColNum || y<0 || y>nRowNum
return
end
cc = pos_chess(y+1,x+1); %鼠标所点的位置的棋子对应的编号
%cur_xy=[x,y]
if cc~=0
ct = ceil(cc/16); %red/bloack
cc = mod(cc,16); %哪一个棋子 mod 取余数
if cc == 0
cc = 16; %整除的情况
end
end
if cur_cid==0 %刚刚开局
if cc~=0 % chess clicked %此处要返回 x,y
if ct==cur_turn %如果是当前的turn
cur_cid = cc; %cur_cid 是当前棋子的temp
set(hText(cur_turn,cur_cid),'BackgroundColor',[.3 .5 .1]);
cur_xy=[x,y]
end
end
else % have current chess %此处要返回x,y
if cc~=0 % chess clicked %再次点击到棋子
if cc==cur_cid && ct==cur_turn % no change
return
end
if ct==cur_turn % 换了一个棋子 %此处要返回x,y
set(hText(cur_turn,cur_cid),'BackgroundColor','none');
cur_cid = cc;
set(hText(cur_turn,cur_cid),'BackgroundColor',[.3 .5 .1]);
cur_xy=[x,y]
else %吃子，此处返回X,Y
% kill
if CanMove(x,y)==1
KillChess(ct,cc);
aim_xy=[x,y]
[aim_xy_board_r(1),aim_xy_board_r(2)]=fig_board(aim_xy(1),aim_xy(2))
temp=sprintf('%s%s%d%s%d%s%d%s%d&','a1','x',aim_xy_board_r(1),'y',aim_xy_board_r(2),'X',150,'Y',180);
fprintf(com,'%s',temp);
pause(4);
[cur_xy_board_r(1),cur_xy_board_r(2)]=fig_board(cur_xy(1),cur_xy(2))
temp=sprintf('%s%s%d%s%d%s%d%s%d&','a1','x',cur_xy_board_r(1),'y',cur_xy_board_r(2),'X',aim_xy_board_r(1),'Y',aim_xy_board_r(2));
fprintf(com,'%s',temp);
[aim_xy_piece_r(1),aim_xy_piece_r(2)]=fig_piece(aim_xy(1),aim_xy(2))
[cur_xy_piece_r(1),cur_xy_piece_r(2)]=fig_piece(cur_xy(1),cur_xy(2))
piece_infos(aim_xy_piece_r(1),aim_xy_piece_r(2)).name=piece_infos(cur_xy_piece_r(1),cur_xy_piece_r(2)).name
piece_infos(cur_xy_piece_r(1),cur_xy_piece_r(2)).name=[]
ChangeTurn();
end
end
else % no chess clicked, go there %移动 此处返回X，Y
if CanMove(x,y)==1
MoveChess(x,y);
aim_xy=[x,y]
[cur_xy_board_r(1),cur_xy_board_r(2)]=fig_board(cur_xy(1),cur_xy(2))
[aim_xy_board_r(1),aim_xy_board_r(2)]=fig_board(aim_xy(1),aim_xy(2))
temp=sprintf('%s%s%d%s%d%s%d%s%d&','a1','x',cur_xy_board_r(1),'y',cur_xy_board_r(2),'X',aim_xy_board_r(1),'Y',aim_xy_board_r(2));
fprintf(com,'%s',temp);
[aim_xy_piece_r(1),aim_xy_piece_r(2)]=fig_piece(aim_xy(1),aim_xy(2))
[cur_xy_piece_r(1),cur_xy_piece_r(2)]=fig_piece(cur_xy(1),cur_xy(2))
piece_infos(aim_xy_piece_r(1),aim_xy_piece_r(2)).name=piece_infos(cur_xy_piece_r(1),cur_xy_piece_r(2)).name
piece_infos(cur_xy_piece_r(1),cur_xy_piece_r(2)).name=[]
ChangeTurn();
end
end
end
end
function play_chess_black(x,y)
%get x,y,
if x<0 || x>nColNum || y<0 || y>nRowNum
return
end
cc = pos_chess(y+1,x+1); %鼠标所点的位置的棋子对应的编号
%cur_xy=[x,y]
if cc~=0
ct = ceil(cc/16); %red/bloack
cc = mod(cc,16); %哪一个棋子 mod 取余数
if cc == 0
cc = 16; %整除的情况
end
end
if cur_cid==0 %刚刚开局
if cc~=0 % chess clicked %此处要返回 x,y
if ct==cur_turn %如果是当前的turn
cur_cid = cc; %cur_cid 是当前棋子的temp
set(hText(cur_turn,cur_cid),'BackgroundColor',[.3 .5 .1]);
cur_xy=[x,y]
end
end
else % have current chess %此处要返回x,y
if cc~=0 % chess clicked %再次点击到棋子
if cc==cur_cid && ct==cur_turn % no change
return
end
if ct==cur_turn % change chess %此处要返回x,y
set(hText(cur_turn,cur_cid),'BackgroundColor','none');
cur_cid = cc;
set(hText(cur_turn,cur_cid),'BackgroundColor',[.3 .5 .1]);
cur_xy=[x,y]
else %吃子，此处返回X,Y
% kill
if CanMove(x,y)==1
KillChess(ct,cc);
aim_xy=[x,y]
[aim_xy_piece_b(1),aim_xy_piece_b(2)]=fig_piece(aim_xy(1),aim_xy(2))
[cur_xy_piece_b(1),cur_xy_piece_b(2)]=fig_piece(cur_xy(1),cur_xy(2))
piece_infos(aim_xy_piece_b(1),aim_xy_piece_b(2)).name=piece_infos(cur_xy_piece_b(1),cur_xy_piece_b(2)).name
piece_infos(cur_xy_piece_b(1),cur_xy_piece_b(2)).name=[]
ChangeTurn();
end
end
else % no chess clicked, go there %移动 此处返回X，Y
if CanMove(x,y)==1
MoveChess(x,y);
aim_xy=[x,y]
[aim_xy_piece_b(1),aim_xy_piece_b(2)]=fig_piece(aim_xy(1),aim_xy(2))
[cur_xy_piece_b(1),cur_xy_piece_b(2)]=fig_piece(cur_xy(1),cur_xy(2))
piece_infos(aim_xy_piece_b(1),aim_xy_piece_b(2)).name=piece_infos(cur_xy_piece_b(1),cur_xy_piece_b(2)).name
piece_infos(cur_xy_piece_b(1),cur_xy_piece_b(2)).name=[]
ChangeTurn();
end
end
end
end
%坐标变换，figure -> piece_info
function [X,Y]=fig_piece(x,y)
X=-y+9;
Y=x+1;
end
%坐标变换，piece_info -> figure
function [x,y]=piece_fig(X,Y)
x=Y-1;
y=-X+9;
end
function [X,Y]=fig_board(x,y)
% X=round(109-27.30*y);
% Y=round(152+20.53*x);
%
Y=round(21*x-1.25*abs(y-4)+144);
y = 4 - y;
X=round(sign(y)*(32*abs(y)-1.36*y*y));
end
end
%end