如何利用Matlab制作一款真正的拼图小游戏

效果：

简单原理介绍：

1构造0,1矩阵作为每片拼图的透明度，可以构造出不规则形状的拼图(image函数有alphadata属性可以设置)

jigsawmask=zeros(101*5,101*5);
jigsawmask(102:404,102:404)=1;
[xmesh,ymesh]=meshgrid(1:101*5,1:101*5);
dis1=sqrt((xmesh-51).^2+(ymesh-253).^2);
dis2=sqrt((xmesh-505+50).^2+(ymesh-253).^2);
dis3=sqrt((xmesh-253).^2+(ymesh-152).^2);
dis4=sqrt((xmesh-253).^2+(ymesh-505+151).^2);
bool1=dis1<=50;
bool2=dis2<=50;
bool3=dis3<=50;
bool4=dis4<=50;
jigsawmask(bool1)=1;
jigsawmask(bool2)=1;
jigsawmask(bool3)=0;
jigsawmask(bool4)=0;
jigsawmask(253-25:253+25,51:505-50)=1;
jigsawmask(1:152,253-25:253+25)=0;
jigsawmask(505-151:505,253-25:253+25)=0;

2为每片拼图块设置buttondownfcn属性，将其改造成按钮

完整代码：

function jigsaw2(path)

if nargin<1||isempty(path)
    [filename, pathname] = uigetfile({'*.jpg;*.tif;*.png;*.jpeg','all image files';...
            '*.*','all files' });
    path = [pathname,filename];
    
end
oripic=imread(path);
%imshow(oripic)

jigsawmask=zeros(101*5,101*5);
jigsawmask(102:404,102:404)=1;
[xmesh,ymesh]=meshgrid(1:101*5,1:101*5);
dis1=sqrt((xmesh-51).^2+(ymesh-253).^2);
dis2=sqrt((xmesh-505+50).^2+(ymesh-253).^2);
dis3=sqrt((xmesh-253).^2+(ymesh-152).^2);
dis4=sqrt((xmesh-253).^2+(ymesh-505+151).^2);
bool1=dis1<=50;
bool2=dis2<=50;
bool3=dis3<=50;
bool4=dis4<=50;
jigsawmask(bool1)=1;
jigsawmask(bool2)=1;
jigsawmask(bool3)=0;
jigsawmask(bool4)=0;
jigsawmask(253-25:253+25,51:505-50)=1;
jigsawmask(1:152,253-25:253+25)=0;
jigsawmask(505-151:505,253-25:253+25)=0;


resizepic=imresize(oripic,[101*(3*4+2),101*(3*4+2)]);
mainfig=figure('units','pixels','position',[300 80 720 400],...
                       'numbertitle','off','menubar','none','resize','off',...
                       'name','jigsaw');
mainaxes=axes('parent',mainfig,'position',[0 0 1 1],...
                    'xlim', [0 720],...
                    'ylim', [0 400],...
                    'nextplot','add',...
                    'layer','bottom',...
                    'ydir','reverse',...
                    'visible','on',...
                    'xtick',[], ...
                    'ytick',[]);
                
                
image(mainaxes,[420,420+14*20],[20,20+14*20],resizepic)
whitemask=150*ones(100,100,3);
whitemask(2:99,2:99,:)=255;
for i=1:4
    for j=1:4
        image(mainaxes,440+[0,60]+(j-1)*60,40+[0,60]+(i-1)*60,uint8(whitemask),...
            'userdata',[i,j]','visible','on');
    end
end
for i=1:4
    for j=1:4
        pichdlr(j+(i-1)*4)=image(mainaxes,420+[0,100]+(j-1)*60,20+[0,100]+(i-1)*60,uint8(zeros(100,100,3)),'alphadata',zeros(100,100),...
            'userdata',j+(i-1)*4,'buttondownfcn',@putpiece,'visible','on');
    end
end

logsheetr=zeros(1,16);
    function putpiece(object,~)
        object.userdata
        if logsheetr(object.userdata)==0&&handhdl.userdata~=0
            object.cdata=handhdl.cdata;
            object.alphadata=handhdl.alphadata;
            logsheetr(object.userdata)=handhdl.userdata;
            handhdl.userdata=0;
            handhdl.cdata=uint8(zeros(100,100,3));
            handhdl.alphadata=zeros(100,100);
        elseif logsheetr(object.userdata)~=0&&handhdl.userdata==0
            handhdl.userdata=logsheetr(object.userdata);
            handhdl.cdata=object.cdata;
            handhdl.alphadata=object.alphadata;
            logsheetr(object.userdata)=0;
            object.cdata=uint8(zeros(100,100,3));
            object.alphadata=zeros(100,100);
        end
        if all(logsheetr==1:16)
            text1.string='恭喜你，游戏胜利!';
        end
    end



%==========================================================================
                
for i=1:4
    for j=1:4
        temppiece=resizepic((i-1)*303+1:(i-1)*303+505,(j-1)*303+1:(j-1)*303+505,:);
        if mod(i+j,2)==0     
            tempmask=jigsawmask';
        else
            tempmask=jigsawmask;
        end
        if j==1
            tempmask(:,1:101)=0;
            tempmask(102:404,102:201)=1;
        end
        if j==4
            tempmask(:,405:505)=0;
            tempmask(102:404,304:404)=1;
        end
        if i==1
            tempmask(1:101,:)=0;
            tempmask(102:201,102:404)=1;
        end
        if i==4
            tempmask(405:505,:)=0;
            tempmask(304:404,102:404)=1;
        end
        pichdl(j+(i-1)*4)=image(mainaxes,[0,100]+(j-1)*100,[0,100]+(i-1)*100,temppiece,'alphadata',tempmask,...
            'userdata',j+(i-1)*4,'buttondownfcn',@selectpiece);
        
        whitehdl(j+(i-1)*4)=image(mainaxes,[0,100]+(j-1)*100,[0,100]+(i-1)*100,uint8(240*ones(100,100,3)),'alphadata',ones(100,100),...
            'userdata',[i,j],'buttondownfcn',@selectpiece,'visible','off');
    end
end

randnum=rand(1,16);
[~,logsheet]=sort(randnum);

for i=1:4
    for j=1:4
        pichdl(logsheet(j+(i-1)*4)).xdata=[0,100]+(j-1)*100;
        pichdl(logsheet(j+(i-1)*4)).ydata=[0,100]+(i-1)*100;
    end
end


handhdl=image(mainaxes,[0,100],[0,100],uint8(zeros(100,100,3)),...
    'alphadata',zeros(100,100),'userdata',0,'pickableparts','none');

    set(gcf,'windowbuttonmotionfcn',@onhandfunc)
    function onhandfunc(~,~)
        xy=get(gca,'currentpoint');
        x=xy(1,1);y=xy(1,2);
        handhdl.xdata=[x-50,x+50];
        handhdl.ydata=[y-50,y+50];  
    end

    function selectpiece(object,~)
        %object.userdata
        if length(object.userdata)==1
            if handhdl.userdata~=0
                pichdl(handhdl.userdata).visible='on';  
                whitehdl(logsheet==handhdl.userdata).visible='off';
            end
            object.visible='off';
            whitehdl(logsheet==object.userdata).visible='on';
            
            handhdl.userdata=object.userdata;
            handhdl.cdata=object.cdata;
            handhdl.alphadata=object.alphadata;
        else
            if handhdl.userdata==0
            else
                ii=object.userdata(1);
                jj=object.userdata(2);
                object.visible='off';
                pichdl(handhdl.userdata).xdata=[0,100]+(jj-1)*100;
                pichdl(handhdl.userdata).ydata=[0,100]+(ii-1)*100;
                pichdl(handhdl.userdata).visible='on';
                logsheet(jj+(ii-1)*4)=handhdl.userdata;
                
                handhdl.userdata=0;
                handhdl.cdata=uint8(zeros(100,100,3));
                handhdl.alphadata=zeros(100,100);              
            end
        end 
    end
%==========================================================================
fill([420,420+14*20,420+14*20,420],[320,320,380,380],[0.9412    0.9412    0.9412],'linewidth',5,'edgecolor',[0.7,0.7,0.7])
text1=text(430,350,'请点击拼图块中心位置移动拼图块','fontsize',12);

end

运行m文件后选择一张接近方形的图片即可开始游戏

总结

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