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教你用Matlab制作黄金矿工小游戏
来源：jb51　　时间：2022/3/2 15:46:18　　对本文有异议

效果

步骤

图片准备

本文所使用图片在这

背景构建

  1. function goldMiner
  2. Mainfig=figure('units','pixels','position',[50 100 750 500],...
  3.                        'Numbertitle','off','menubar','none','resize','off',...
  4.                        'name','goldMiner');
  5. axes('parent',Mainfig,'position',[0 0 1 1],...
  6.    'XLim', [0 750],...
  7.    'YLim', [0 500],...
  8.    'NextPlot','add',...
  9.    'layer','bottom',...
  10.    'Visible','on',...
  11.    'YDir','reverse',...
  12.    'XTick',[], ...
  13.    'YTick',[]);
  14.  
  15. bkgPic=imread('.\pic\bkg.png');
  16. image([0,750],[0,500],bkgPic)
  17.  
  18. [manPic,~,manAlp]=imread('.\pic\man.png');
  19. image([400-60,400+60],[49.5-45,49.5+45],manPic,'AlphaData',manAlp)
  20.  

绘制爪子

由于爪子要不断调整角度因此用surface格式绘制，我们需要将爪子图片矩阵范围调整至[0，1]，并将透明处数值调成nan

  1. [clawPic,~,clawAlp]=imread('.\Pic\claw.png');
  2. clawPic=double(clawPic)./255;
  3. clawPicR=clawPic(:,:,1);
  4. clawPicG=clawPic(:,:,2);
  5. clawPicB=clawPic(:,:,3);
  6. clawPicR(clawAlp<1)=nan;
  7. clawPicG(clawAlp<1)=nan;
  8. clawPicB(clawAlp<1)=nan;
  9. clawPic(:,:,1)=clawPicR;
  10. clawPic(:,:,2)=clawPicG;
  11. clawPic(:,:,3)=clawPicB;
  12.  
  13. clawPos=[380,75];
  14. ropePos=[380,75];
  15.  
  16. [xgrid,ygrid]=meshgrid((1:size(clawAlp,2))./2,(1:size(clawAlp,1))./2);
  17. xgrid=xgrid-size(clawAlp,2)/4;
  18.  
  19. thetaList=linspace(-2*pi/5,2*pi/5,50);
  20. thetaIndex=1;
  21. theta=thetaList(thetaIndex);%当前爪子转动角度
  22. v=0;%爪子下移速度
  23. dir=1;%1或-1爪子转动方向
  24. grabbing=false;%是否正在抓取石块
  25.  
  26. cost=cos(theta);
  27. sint=sin(theta);
  28. rotateX=cost.*xgrid+sint.*ygrid;
  29. rotateY=cost.*ygrid-sint.*xgrid;
  30.  
  31. drawClawHdl=surface(rotateX+clawPos(1),rotateY+clawPos(2),...
  32.             zeros(size(clawAlp)),clawPic,...
  33.             'EdgeColor','none');
  34. drawLineHdl=plot([clawPos(1),ropePos(1)],[clawPos(2),ropePos(2)],'k','LineWidth',2);

让爪子转起来

爪子旋转就是单纯的使用旋转矩阵：

  1. fps=20;
  2. game=timer('ExecutionMode', 'FixedRate', 'Period',1/fps, 'TimerFcn', @minergame);
  3. start(game)
  4.  
  5.     function minergame(~,~)
  6.         if ~grabbing
  7.             switch 1
  8.                 case thetaIndex==1,dir=1;
  9.                 case thetaIndex==50,dir=-1;
  10.             end
  11.             thetaIndex=thetaIndex+dir;
  12.             theta=thetaList(thetaIndex);
  13.             cost=cos(theta);
  14.             sint=sin(theta);
  15.             rotateX=cost.*xgrid+sint.*ygrid;
  16.             rotateY=cost.*ygrid-sint.*xgrid;
  17.         else
  18.         end
  19.     end

绘制石块

  1. stoneName={'gold','gold','stone1','stone2','diamond'};
  2. stonePic{length(stoneName)}=[];
  3. stoneAlp{length(stoneName)}=[];
  4. for i=1:length(stoneName)
  5.     [C,~,Alp]=imread(['.\pic\',stoneName{i},'.png']);
  6.     stonePic{i}=C;
  7.     stoneAlp{i}=Alp;
  8. end
  9. stoneV=[-2,-3,-3,-3,-5];%拿起石头后爪子移动速度
  10. stonePrice=[800,500,200,100,1000];
  11. stoneSize=[50,50;30,30;24,20;15,12;8,8];
  12.  
  13.  
  14. stonePos=[200,300;400,350;500,200;50,240;50,300;
  15.           700,420;170,180];
  16. stoneType=[1,2,3,4,5,1,2];
  17. stoneTag=1:length(stoneType);
  18. stoneXrange=[stonePos(:,1)-stoneSize(stoneType',1),stonePos(:,1)+stoneSize(stoneType',1)];
  19. stoneYrange=[stonePos(:,2)-stoneSize(stoneType',2),stonePos(:,2)+stoneSize(stoneType',2)];
  20.  
  21. for i=1:length(stoneTag)
  22.     drawStone(stonePos(i,:),stoneType(i),stoneTag(i))   
  23. end
  24.  
  25.     function drawStone(pos,i,j)
  26.         image([-stoneSize(i,1),stoneSize(i,1)]+pos(1),...
  27.               [-stoneSize(i,2),stoneSize(i,2)]+pos(2),...
  28.               stonePic{i},...
  29.               'AlphaData',stoneAlp{i},...
  30.               'UserData',j)  
  31.     end

点击下箭头移动爪子

  1. set(gcf, 'KeyPressFcn', @key)
  2.  
  3. 	function key(~,event)
  4.         switch event.Key
  5.             case 'downarrow'
  6.                 grabbing=true;v=4;
  7.         end
  8.     end
  9.  
  10. function minergame(~,~)
  11.         if ~grabbing
  12.             %这里是让爪子转动的一堆代码
  13.             %。。。。。。。。。。。。。
  14.             %。。。。。。。。。。。。。
  15.         else
  16.             cost=cos(theta);
  17.             sint=sin(theta);
  18.             clawPos=clawPos+[sint,cost].*v;
  19.         end
  20.         set(drawClawHdl,'XData',rotateX+clawPos(1),'YData',rotateY+clawPos(2));
  21.         set(drawLineHdl,'XData',[clawPos(1),ropePos(1)],'YData',[clawPos(2),ropePos(2)]);
  22.     end

爪子与石头和边缘碰触判断

  1. function n=touchThing(clawPos)
  2.         n=0;
  3.         if clawPos(1)<20||clawPos(1)>730||clawPos(2)>480
  4.             n=-1;     
  5.         end
  6.         flagX=clawPos(1)>=stoneXrange(:,1)&clawPos(1)<=stoneXrange(:,2);
  7.         flagY=clawPos(2)>=stoneYrange(:,1)&clawPos(2)<=stoneYrange(:,2);
  8.         flagXY=flagX&flagY;
  9.         if any(flagXY)
  10.             n=find(flagXY);
  11.         end
  12.     end

抓取石块和显示金钱

  1. holdOnType=0;
  2. drawHoldOnHdl=image([0,1],[0,1],ones(1,1),'AlphaData',zeros(1,1));
  3.  
  4. text(10,40,'Money:','FontSize',20,'Color',[1 1 1],'FontName','Cambria','FontWeight','bold')
  5. money=0;
  6. moneyStrHdl=text(110,40,'$0','FontSize',20,'Color',[0.5137 0.7882 0.2157],'FontName','Cambria','FontWeight','bold');    
  7.  
  8. 	function minergame(~,~)
  9.         if ~grabbing
  10.             switch 1
  11.                 case thetaIndex==1,dir=1;
  12.                 case thetaIndex==50,dir=-1;
  13.             end
  14.             thetaIndex=thetaIndex+dir;
  15.             theta=thetaList(thetaIndex);
  16.             cost=cos(theta);
  17.             sint=sin(theta);
  18.             rotateX=cost.*xgrid+sint.*ygrid;
  19.             rotateY=cost.*ygrid-sint.*xgrid;
  20.         else
  21.             cost=cos(theta);
  22.             sint=sin(theta);
  23.             clawPos=clawPos+[sint,cost].*v;
  24.             
  25.             n=touchThing(clawPos+5.*[sint,cost]);
  26.             if n==-1
  27.                 v=-abs(v);
  28.             elseif n>0
  29.                 delete(findobj('UserData',stoneTag(n)));
  30.                 v=stoneV(stoneType(n));
  31.                 holdOnType=stoneType(n);
  32.                 stonePos(n,:)=[];
  33.                 stoneType(n)=[];
  34.                 stoneTag(n)=[];
  35.                 stoneXrange(n,:)=[];
  36.                 stoneYrange(n,:)=[];
  37.                 set(drawHoldOnHdl,...
  38.                     'XData',[-stoneSize(holdOnType,1),stoneSize(holdOnType,1)]+clawPos(1)+norm(stoneSize(holdOnType,:))*sint,...
  39.                     'YData',[-stoneSize(holdOnType,2),stoneSize(holdOnType,2)]+clawPos(2)+norm(stoneSize(holdOnType,:))*cost,...
  40.                     'CData',stonePic{holdOnType},'AlphaData',stoneAlp{holdOnType});
  41.             end  
  42.             
  43.             if clawPos(2)<=ropePos(2)
  44.                 clawPos=ropePos;
  45.                 grabbing=false;
  46.                 if holdOnType>0
  47.                     money=money+stonePrice(holdOnType);
  48.                     set(moneyStrHdl,'String',['$',num2str(money)])
  49.                 end
  50.                 holdOnType=0;
  51.                 set(drawHoldOnHdl,'XData',[0,1],...
  52.                                   'YData',[0,1],...
  53.                                   'CData',ones(1,1),...
  54.                                   'AlphaData',zeros(1,1));                  
  55.             end
  56.             if holdOnType~=0
  57.                 set(drawHoldOnHdl,...
  58.                     'XData',[-stoneSize(holdOnType,1),stoneSize(holdOnType,1)]+clawPos(1)+norm(stoneSize(holdOnType,:))*sint,...
  59.                     'YData',[-stoneSize(holdOnType,2),stoneSize(holdOnType,2)]+clawPos(2)+norm(stoneSize(holdOnType,:))*cost);
  60.             end
  61.         end
  62.         
  63.         
  64.         set(drawClawHdl,'XData',rotateX+clawPos(1),'YData',rotateY+clawPos(2));
  65.         set(drawLineHdl,'XData',[clawPos(1),ropePos(1)],'YData',[clawPos(2),ropePos(2)]);
  66.     end

完整代码

  1. function goldMiner
  2. Mainfig=figure('units','pixels','position',[50 100 750 500],...
  3.                        'Numbertitle','off','menubar','none','resize','off',...
  4.                        'name','goldMiner');
  5. axes('parent',Mainfig,'position',[0 0 1 1],...
  6.    'XLim', [0 750],...
  7.    'YLim', [0 500],...
  8.    'NextPlot','add',...
  9.    'layer','bottom',...
  10.    'Visible','on',...
  11.    'YDir','reverse',...
  12.    'XTick',[], ...
  13.    'YTick',[]);
  14.  
  15. bkgPic=imread('.\pic\bkg.png');
  16. image([0,750],[0,500],bkgPic)
  17.  
  18. [manPic,~,manAlp]=imread('.\pic\man.png');
  19. image([400-60,400+60],[49.5-45,49.5+45],manPic,'AlphaData',manAlp)
  20.  
  21. [clawPic,~,clawAlp]=imread('.\Pic\claw.png');
  22. clawPic=double(clawPic)./255;
  23. clawPicR=clawPic(:,:,1);
  24. clawPicG=clawPic(:,:,2);
  25. clawPicB=clawPic(:,:,3);
  26. clawPicR(clawAlp<1)=nan;
  27. clawPicG(clawAlp<1)=nan;
  28. clawPicB(clawAlp<1)=nan;
  29. clawPic(:,:,1)=clawPicR;
  30. clawPic(:,:,2)=clawPicG;
  31. clawPic(:,:,3)=clawPicB;
  32.  
  33. clawPos=[380,75];
  34. ropePos=[380,75];
  35.  
  36. [xgrid,ygrid]=meshgrid((1:size(clawAlp,2))./2,(1:size(clawAlp,1))./2);
  37. xgrid=xgrid-size(clawAlp,2)/4;
  38.  
  39. thetaList=linspace(-2*pi/5,2*pi/5,50);
  40. thetaIndex=1;
  41. theta=thetaList(thetaIndex);v=0;
  42. dir=1;grabbing=false;
  43.  
  44. cost=cos(theta);
  45. sint=sin(theta);
  46. rotateX=cost.*xgrid+sint.*ygrid;
  47. rotateY=cost.*ygrid-sint.*xgrid;
  48.  
  49. drawClawHdl=surface(rotateX+clawPos(1),rotateY+clawPos(2),...
  50.             zeros(size(clawAlp)),clawPic,...
  51.             'EdgeColor','none');
  52. drawLineHdl=plot([clawPos(1),ropePos(1)],[clawPos(2),ropePos(2)],'k','LineWidth',2);
  53. %stone part======================================================
  54. stoneName={'gold','gold','stone1','stone2','diamond'};
  55. stonePic{length(stoneName)}=[];
  56. stoneAlp{length(stoneName)}=[];
  57. for i=1:length(stoneName)
  58.     [C,~,Alp]=imread(['.\pic\',stoneName{i},'.png']);
  59.     stonePic{i}=C;
  60.     stoneAlp{i}=Alp;
  61. end
  62. stoneV=[-2,-3,-3,-3,-5];
  63. stonePrice=[800,500,200,100,1000];
  64. stoneSize=[50,50;30,30;24,20;15,12;8,8];
  65.  
  66.  
  67. stonePos=[200,300;400,350;500,200;50,240;50,300;
  68.           700,420;170,180];
  69. stoneType=[1,2,3,4,5,1,2];
  70. stoneTag=1:length(stoneType);
  71. stoneXrange=[stonePos(:,1)-stoneSize(stoneType',1),stonePos(:,1)+stoneSize(stoneType',1)];
  72. stoneYrange=[stonePos(:,2)-stoneSize(stoneType',2),stonePos(:,2)+stoneSize(stoneType',2)];
  73.  
  74. for i=1:length(stoneTag)
  75.     drawStone(stonePos(i,:),stoneType(i),stoneTag(i))   
  76. end
  77.  
  78.     function drawStone(pos,i,j)
  79.         image([-stoneSize(i,1),stoneSize(i,1)]+pos(1),...
  80.               [-stoneSize(i,2),stoneSize(i,2)]+pos(2),...
  81.               stonePic{i},...
  82.               'AlphaData',stoneAlp{i},...
  83.               'UserData',j)  
  84.     end
  85.  
  86. holdOnType=0;
  87. drawHoldOnHdl=image([0,1],[0,1],ones(1,1),'AlphaData',zeros(1,1));
  88.  
  89. text(10,40,'Money:','FontSize',20,'Color',[1 1 1],'FontName','Cambria','FontWeight','bold')
  90. money=0;
  91. moneyStrHdl=text(110,40,'$0','FontSize',20,'Color',[0.5137 0.7882 0.2157],'FontName','Cambria','FontWeight','bold');
  92.  
  93. %==========================================================================    
  94. set(gcf, 'KeyPressFcn', @key)
  95. fps=20;
  96. game=timer('ExecutionMode', 'FixedRate', 'Period',1/fps, 'TimerFcn', @minergame);
  97. start(game)
  98.  
  99.     function minergame(~,~)
  100.         if ~grabbing
  101.             switch 1
  102.                 case thetaIndex==1,dir=1;
  103.                 case thetaIndex==50,dir=-1;
  104.             end
  105.             thetaIndex=thetaIndex+dir;
  106.             theta=thetaList(thetaIndex);
  107.             cost=cos(theta);
  108.             sint=sin(theta);
  109.             rotateX=cost.*xgrid+sint.*ygrid;
  110.             rotateY=cost.*ygrid-sint.*xgrid;
  111.         else
  112.             cost=cos(theta);
  113.             sint=sin(theta);
  114.             clawPos=clawPos+[sint,cost].*v;
  115.             
  116.             n=touchThing(clawPos+5.*[sint,cost]);
  117.             if n==-1
  118.                 v=-abs(v);
  119.             elseif n>0
  120.                 delete(findobj('UserData',stoneTag(n)));
  121.                 v=stoneV(stoneType(n));
  122.                 holdOnType=stoneType(n);
  123.                 stonePos(n,:)=[];
  124.                 stoneType(n)=[];
  125.                 stoneTag(n)=[];
  126.                 stoneXrange(n,:)=[];
  127.                 stoneYrange(n,:)=[];
  128.                 set(drawHoldOnHdl,...
  129.                     'XData',[-stoneSize(holdOnType,1),stoneSize(holdOnType,1)]+clawPos(1)+norm(stoneSize(holdOnType,:))*sint,...
  130.                     'YData',[-stoneSize(holdOnType,2),stoneSize(holdOnType,2)]+clawPos(2)+norm(stoneSize(holdOnType,:))*cost,...
  131.                     'CData',stonePic{holdOnType},'AlphaData',stoneAlp{holdOnType});
  132.             end  
  133.             
  134.             if clawPos(2)<=ropePos(2)
  135.                 clawPos=ropePos;
  136.                 grabbing=false;
  137.                 if holdOnType>0
  138.                     money=money+stonePrice(holdOnType);
  139.                     set(moneyStrHdl,'String',['$',num2str(money)])
  140.                 end
  141.                 holdOnType=0;
  142.                 set(drawHoldOnHdl,'XData',[0,1],...
  143.                                   'YData',[0,1],...
  144.                                   'CData',ones(1,1),...
  145.                                   'AlphaData',zeros(1,1));                  
  146.             end
  147.             if holdOnType~=0
  148.                 set(drawHoldOnHdl,...
  149.                     'XData',[-stoneSize(holdOnType,1),stoneSize(holdOnType,1)]+clawPos(1)+norm(stoneSize(holdOnType,:))*sint,...
  150.                     'YData',[-stoneSize(holdOnType,2),stoneSize(holdOnType,2)]+clawPos(2)+norm(stoneSize(holdOnType,:))*cost);
  151.             end
  152.         end
  153.         
  154.         
  155.         set(drawClawHdl,'XData',rotateX+clawPos(1),'YData',rotateY+clawPos(2));
  156.         set(drawLineHdl,'XData',[clawPos(1),ropePos(1)],'YData',[clawPos(2),ropePos(2)]);
  157.     end
  158.  
  159.     function n=touchThing(clawPos)
  160.         n=0;
  161.         if clawPos(1)<20||clawPos(1)>730||clawPos(2)>480
  162.             n=-1;     
  163.         end
  164.         flagX=clawPos(1)>=stoneXrange(:,1)&clawPos(1)<=stoneXrange(:,2);
  165.         flagY=clawPos(2)>=stoneYrange(:,1)&clawPos(2)<=stoneYrange(:,2);
  166.         flagXY=flagX&flagY;
  167.         if any(flagXY)
  168.             n=find(flagXY);
  169.         end
  170.     end
  171.  
  172.     function key(~,event)
  173.         switch event.Key
  174.             case 'downarrow'
  175.                 grabbing=true;v=4;
  176.         end
  177.     end
  178. end

以上就是教你用Matlab制作黄金矿工小游戏的详细内容，更多关于Matlab黄金矿工游戏的资料请关注w3xue其它相关文章！

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