基于Matlab制作一款简单的龙舟小游戏
来源:脚本之家    时间:2022-03-02 15:32:39

效果图:

没找到合适的背景就自己画了个,大家如果有更好看的可以换一下。。。

步骤

1 创建Axes及图片导入

窗口创建:

Mainfig=figure("units","pixels","position",[50 100 760 400],...
                       "Numbertitle","off","menubar","none","resize","off",...
                       "name","dragonBoat");
axes("parent",Mainfig,"position",[0 0 1 1],...
   "XLim", [0 760],...
   "YLim", [0 400],...
   "NextPlot","add",...
   "layer","bottom",...
   "Visible","on",...
   "YDir","reverse",...
   "XTick",[], ...
   "YTick",[]);

图片导入:

[bkg_C,~,~]=imread("river.png");
[boat_C,~,boat_Alp]=imread("boat.png");
[stone_C,~,stone_Alp]=imread("stone.png");

图片素材可以从这里拿哟

2 创建timer函数移动背景

DrawBkgHdl=image([0 760],[0 400],bkg_C);

t=0;
tempBkg_C=[bkg_C,bkg_C];
fps = 20;
game = timer("ExecutionMode", "FixedRate", "Period",1/fps, "TimerFcn", @dragongame);
start(game)

	function dragongame(~,~)
        t=t+6;
        modt=mod(t,720);
        
        newBkg_C=tempBkg_C(:,1+modt:684+modt,:);
        set(DrawBkgHdl,"CData",newBkg_C) 
    end

3 绘制石块并移动

其实是5个石块来回变位置,当一个石块位置减小到负数就把数值增加并重新绘制

stonePos=[600;870;1140;1410];
stonePos=[stonePos,randi([90,330],[4,1])];
for i=1:size(stonePos,1)
    drawStoneHdl(i)=image([stonePos(i,1)-39 stonePos(i,1)+39],[stonePos(i,2)-20 stonePos(i,2)+20],stone_C,"AlphaData",stone_Alp);
end

	function dragongame(~,~)

		%这里是之前写的背景部分代码
		%。。。。。。。。。。。
		%。。。。。。。。。。。
		
        stonePos(:,1)=stonePos(:,1)-20/3;
        stonePos(stonePos(:,1)<0,2)=randi([90,330],[1,1]);
        stonePos(stonePos(:,1)<0,1)=stonePos(stonePos(:,1)<0,1)+1080;
        for ii=1:size(stonePos,1)
            set(drawStoneHdl(ii),"XData",[stonePos(ii,1)-39 stonePos(ii,1)+39],...
                "YData",[stonePos(ii,2)-20 stonePos(ii,2)+20]);
        end
    end

4 绘制船并创建鼠标回调

boatPos=[380,200];
DrawBoatHdl=image([boatPos(1)-75 boatPos(1)+75],[boatPos(2)-50 boatPos(2)+50],boat_C,"AlphaData",boat_Alp);

set(gcf,"WindowButtonMotionFcn",@moveBoat,"tag","mov")

	function moveBoat(~,~)
        xy=get(gca,"CurrentPoint");
        temp_y=xy(1,2);
        temp_y(temp_y<100)=90;
        temp_y(temp_y>340)=330;
        boatPos=[380,temp_y];
        set(DrawBoatHdl,"YData",[temp_y-50 temp_y+50]);
    end

5 碰撞判断函数

function flag=judge(Bpos,Spos)
        flag1=abs(Bpos(1)-Spos(:,1))<80;
        flag2=abs((Bpos(2)+35)-Spos(:,2))<30;
        flag3=flag1&flag2;
        flag=any(flag3);
    end

dragongame函数做如下改写

function dragongame(~,~)
    
		%这里是之前一大堆代码
		%。。。。。。。。。。
		%。。。。。。。。。。
		%。。。。。。。。。。

        if judge(boatPos,stonePos)
            stop(game)
            set(gcf,"WindowButtonMotionFcn",[]); 
            text(50,200,"游戏结束","FontSize",54,"Color","w","tag","txt")
        end
    end

6 完整代码

function dragonBoat


Mainfig=figure("units","pixels","position",[50 100 760 400],...
                       "Numbertitle","off","menubar","none","resize","off",...
                       "name","dragonBoat");
axes("parent",Mainfig,"position",[0 0 1 1],...
   "XLim", [0 760],...
   "YLim", [0 400],...
   "NextPlot","add",...
   "layer","bottom",...
   "Visible","on",...
   "YDir","reverse",...
   "XTick",[], ...
   "YTick",[]);
[bkg_C,~,~]=imread("river.png");
[boat_C,~,boat_Alp]=imread("boat.png");
[stone_C,~,stone_Alp]=imread("stone.png");


DrawBkgHdl=image([0 760],[0 400],bkg_C);

stonePos=[600;870;1140;1410];
stonePos=[stonePos,randi([90,330],[4,1])];
for i=1:size(stonePos,1)
    drawStoneHdl(i)=image([stonePos(i,1)-39 stonePos(i,1)+39],[stonePos(i,2)-20 stonePos(i,2)+20],stone_C,"AlphaData",stone_Alp);
end

boatPos=[380,200];
DrawBoatHdl=image([boatPos(1)-75 boatPos(1)+75],[boatPos(2)-50 boatPos(2)+50],boat_C,"AlphaData",boat_Alp);

t=0;
tempBkg_C=[bkg_C,bkg_C];
fps = 20;
game = timer("ExecutionMode", "FixedRate", "Period",1/fps, "TimerFcn", @dragongame);
start(game)

text(10,20,["已前进",num2str(t),"米"],"FontSize",14,"Color","w","tag","txt");

set(gcf,"WindowButtonMotionFcn",@moveBoat,"tag","mov")


    function dragongame(~,~)
        t=t+6;
        modt=mod(t,720);
        
        newBkg_C=tempBkg_C(:,1+modt:684+modt,:);
        set(DrawBkgHdl,"CData",newBkg_C) 
        
        stonePos(:,1)=stonePos(:,1)-20/3;
        stonePos(stonePos(:,1)<0,2)=randi([90,330],[1,1]);
        stonePos(stonePos(:,1)<0,1)=stonePos(stonePos(:,1)<0,1)+1080;
        for ii=1:size(stonePos,1)
            set(drawStoneHdl(ii),"XData",[stonePos(ii,1)-39 stonePos(ii,1)+39],...
                "YData",[stonePos(ii,2)-20 stonePos(ii,2)+20]);
        end
        set(findobj("tag","txt"),"String",["已前进",num2str(t),"米"]);
        
        if judge(boatPos,stonePos)
            stop(game)
            set(gcf,"WindowButtonMotionFcn",[]); 
            text(50,200,"游戏结束","FontSize",54,"Color","w","tag","txt")
        end
    end

    function moveBoat(~,~)
        xy=get(gca,"CurrentPoint");
        temp_y=xy(1,2);
        temp_y(temp_y<100)=90;
        temp_y(temp_y>340)=330;
        boatPos=[380,temp_y];
        set(DrawBoatHdl,"YData",[temp_y-50 temp_y+50]);
    end

    function flag=judge(Bpos,Spos)
        flag1=abs(Bpos(1)-Spos(:,1))<80;
        flag2=abs((Bpos(2)+35)-Spos(:,2))<30;
        flag3=flag1&flag2;
        flag=any(flag3);
    end
end

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