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97 lines
1.7 KiB
C++
97 lines
1.7 KiB
C++
Which three balls move in three concentric oval orbit without ever colliding.
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#define R 5
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#include<iostream.h>
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#include<conio.h>
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#include<graphics.h>
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#include<math.h>
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#include<dos.h>
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#include<stdlib.h>
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void main()
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{
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void orbit(void);
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int d=DETECT,m;
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initgraph(&d,&m,"e:\tcc\bgi");
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float xx,yy,aa=15,bb=50,x,y,X,Y,a=34,b=0,A=100,B=60,ex,sq;
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setcolor(14);
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// orbit();
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for(float i=0;i<=720;i+=.1)
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{
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x=a*cos(i+10)-a*sin(i+10);
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y=b*sin(i+10)+a*cos(i+10);
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X=A*cos(i+20)-B*sin(i+20+90);
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Y=B*sin(i+20)+B*cos(i+20+90);
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xx=aa*cos(i);
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yy=bb*sin(i);
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setcolor(14);
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setfillstyle(1,14);
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circle(x+100,y+100,R);
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floodfill(x+100,y+100,14);
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setcolor(14);
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setfillstyle(1,14);
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circle(xx+100,yy+100,R);
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floodfill(xx+100,yy+100,14);
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setcolor(14);
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setfillstyle(1,14);
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circle(X+100,Y+100,R);
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floodfill(X+100,Y+100,14);
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putpixel(X+100,Y+100,4);
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delay(100);
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setcolor(0);
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setfillstyle(1,0);
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circle(x+100,y+100,R);
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floodfill(x+100,y+100,0);
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setcolor(0);
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setfillstyle(1,0);
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circle(xx+100,yy+100,R);
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floodfill(xx+100,yy+100,0);
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setcolor(0);
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setfillstyle(1,0);
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circle(X+100,Y+100,R);
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floodfill(X+100,Y+100,0);
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if(kbhit())
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exit(1);
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orbit();
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}
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getch();
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}
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void orbit()
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{
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for(float i=0;i<=60;i+=1)
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{
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float xx,yy,aa=15,bb=50,x,y,X,Y,a=34,b=0,A=100,B=60,ex,sq;
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x=a*cos(i)-a*sin(i);
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y=b*sin(i)+a*cos(i);
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X=A*cos(i)-B*sin(i+90);
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Y=B*sin(i)+B*cos(i+90);
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xx=aa*cos(i);
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yy=bb*sin(i);
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putpixel(x+100,y+100,14);
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putpixel(X+100,Y+100,14);
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putpixel(xx+100,yy+100,14);
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}
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}
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