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see the below code is of some helpful for you, got it from web. you need to modify as per your requirements instead of cuboid, you need to have sphere kind of modification for your ball to move i think.
Moving3D Box in free space#include <stdio.h>#include <dos.h>#include <graphics.h>#include <conio.h>#define MAGFY 20class Bline { private: int CEN_X,CEN_Y,radius,X,Y,i,j; public: void line1(int x1,int y1,int x2,int y2,int x3,int y3,int x4,int y4); };void Bline::line1(int x1,int y1,int x2,int y2,int x3,int y3,int x4,int y4){ CEN_X = (x1+x2)/2 + (x3-x2)/2; CEN_Y = (y1+y2)/2 + (y3-y2)/2; //radius = (x1+x2)/2; for(;!kbhit();) { delay(300); cleardevice(); //1st box line(x1,y1,x2,y2); line(x1,y1-20,x2,y2-20); // line(x3,y3,x4,y4); line(x3,y3-20,x4,y4-20); // line(x1,y1,x4,y4); line(x1,y1-20,x4,y4-20); // line(x2,y2,x3,y3); line(x2,y2-20,x3,y3-20); // //2nd box line(x1,y1,x1,y1-20); line(x2,y2,x2,y2-20); line(x3,y3,x3,y3-20); line(x4,y4,x4,y4-20); //some point which will be moving around3Dbox //line(x2+40,y2-20,x2+40,y2-20); //rectangle(x2,y2,x4,y4); //1st Quadrant if(x1>CEN_X && y1<CEN_Y) x1--,y1--; if(x1==CEN_X && y1<CEN_Y) x1--,y1++; if(x1<CEN_X && y1<CEN_Y) x1--,y1++; if(x1<CEN_X && y1==CEN_Y) x1++,y1++; if(x1<CEN_X && y1>CEN_Y) x1++,y1++; if(x1==CEN_X && y1>CEN_Y) x1++,y1--; if(x1>CEN_X && y1>CEN_Y) x1++,y1--; if(x1>CEN_X && y1==CEN_Y) x1--,y1--; //2nd Quadrant if(x2>CEN_X && y2<CEN_Y) x2--,y2--; if(x2==CEN_X && y2<CEN_Y) x2--,y2++; if(x2<CEN_X && y2<CEN_Y) x2--,y2++; if(x2<CEN_X && y2==CEN_Y) x2++,y2++; if(x2<CEN_X && y2>CEN_Y) x2++,y2++; if(x2==CEN_X && y2>CEN_Y) x2++,y2--; if(x2>CEN_X && y2>CEN_Y) x2++,y2--; if(x2>CEN_X && y2==CEN_Y) x2--,y2--; //3rd Quadrant if(x3>CEN_X && y3<CEN_Y) x3--,y3--; if(x3==CEN_X && y3<CEN_Y) x3--,y3++; if(x3<CEN_X && y3<CEN_Y) x3--,y3++; if(x3<CEN_X && y3==CEN_Y) x3++,y3++; if(x3<CEN_X && y3>CEN_Y) x3++,y3++; if(x3==CEN_X && y3>CEN_Y) x3++,y3--; if(x3>CEN_X && y3>CEN_Y) x3++,y3--; if(x3>CEN_X && y3==CEN_Y) x3--,y3--; //4th Quadrant if(x4>CEN_X && y4<CEN_Y) x4--,y4--; if(x4==CEN_X && y4<CEN_Y) x4--,y4++; if(x4<CEN_X && y4<CEN_Y) x4--,y4++; if(x4<CEN_X && y4==CEN_Y) x4++,y4++; if(x4<CEN_X && y4>CEN_Y) x4++,y4++; if(x4==CEN_X && y4>CEN_Y) x4++,y4--; if(x4>CEN_X && y4>CEN_Y) x4++,y4--; if(x4>CEN_X && y4==CEN_Y) x4--,y4--; }}int main(){ int GD=DETECT,GM; Bline line1; initgraph(&GD,&GM,"c:\\tc\\bgi"); //according to your own computer (TC\\BIN) Directoryline1.line1(5*MAGFY,7*MAGFY,1*MAGFY,3*MAGFY,3*MAGFY,1*MAGFY,7*MAGFY,5*MAGFY); getch(); restorecrtmode(); closegraph(); return0;}
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