matlab写的反弹球没有优化界面有点丑哈哈

clc
clear
close all
x1=60;y1=0;x2=400;y2=40;X_shudu=4;Y_shudu=6;
while  x2< 600
 x2=x2+X_shudu;
 y2=y2-Y_shudu;
 P1=[x2 y2; x2 y2+20; x2+20 y2+20; x2+20 y2; NaN NaN;   x1 y1; x1 y1+20; x1+100 y1+20; x1+100 y1;];
 polyin1 =polyshape(P1);
 plot(polyin1)
axis([0 600 0 400]);
 drawnow;
if (x2>580)
  X_shudu=-X_shudu;
end
if y2>380
    Y_shudu=-Y_shudu;
end
if x2<0
  X_shudu=-X_shudu;
end
if y2<0
    Y_shudu=-Y_shudu;
    x2=400;y2=40;
end
if abs(x2-x1)>10
    x1=x2-10;
end
if  ((x1<x2)&&(x2<(x1+100))&&(y2<(y1+20))&&(x2==(x1)))||((x1<(x2+20))&&((x2+20)<(x1+100))&&(y2<(y1+20)))||((x1<x2)&&(x2<(x1+100))&&(y2<(y1+20)))&&((x1<(x2+20))&&((x2+20)<(x1+100))&&(y2<(y1+20)))
    Y_shudu=-Y_shudu;
end
end