# include <iostream.h> # include <graphics.h> # include <conio.h> # include <math.h> void show_screen( ); void Fill_rectangle(const int,const int,const int,const int); void Rectangle(const int,const int,const int,const int); void Line(const int,const int,const int,const int); int main( ) { int driver=VGA; int mode=VGAHI; initgraph(&driver,&mode,\"..\\\\Bgi\"); show_screen( ); for(int count_1=0;count_1<15;count_1++) { setcolor((count_1+1)); Rectangle((141+count_1),(69+count_1),(499-count_1), (427-count_1)); } setcolor(9); for(int count_2=0;count_2<19;count_2++) Rectangle((156+count_2),(84+count_2),(484-count_2),(412-count_2)); setcolor(12); Rectangle((156+count_2),(84+count_2),(484-count_2),(412-count_2)); for(int count_3=0;count_3<9;count_3++) { Line((176+(count_3*36)),104,(176+(count_3*36)),392); Line(176,(104+(36*count_3)),464,(104+(36*count_3))); } setcolor(15); for(int count_4=0;count_4<8;count_4++) { for(int count_5=0;count_5<8;count_5++) { if(((count_5%2)+(count_4%2))==1) Fill_rectangle((176+(count_5*36)),(104+(count_4*36)), (212+(count_5*36)),(140+(count_4*36))); } } char English[8][3]={\"H\",\"G\",\"F\",\"E\",\"D\",\"C\",\"B\",\"A\"}; char Numbers[8][3]={\"1\",\"2\",\"3\",\"4\",\"5\",\"6\",\"7\",\"8\"}; setcolor(15); settextstyle(0,0,1); for(int count_6=0;count_6<8;count_6++) { outtextxy(164,(120+(count_6*36)),Numbers[count_6]); outtextxy((190+(count_6*36)),398,English[count_6]); } getch( ); return 0; } //--------------------------- Rectangle( ) ----------------------------// void Rectangle(const int x_1,const int y_1,const int x_2,const int y_2) { Line(x_1,y_1,x_2,y_1); Line(x_2,y_1,x_2,y_2); Line(x_2,y_2,x_1,y_2); Line(x_1,y_2,x_1,y_1); } //------------------------- Fill_rectangle( ) -------------------------// void Fill_rectangle(const int x_1,const int y_1,const int x_2,const int y_2) { int y_min=((y_1>=y_2)?y_2:y_1); int y_max=((y_1<=y_2)?y_2:y_1); for(int count=(y_min+1);count<y_max;count++) Line((x_1+1),count,(x_2-1),count); } //------------------------------ Line( ) ------------------------------// void Line(const int x_1,const int y_1,const int x_2,const int y_2) { int color=getcolor( ); int x1=x_1; int y1=y_1; int x2=x_2; int y2=y_2; if(x_1>x_2) { x1=x_2; y1=y_2; x2=x_1; y2=y_1; } int dx=abs(x2-x1); int dy=abs(y2-y1); int inc_dec=((y2>=y1)?1:-1); if(dx>dy) { int two_dy=(2*dy); int two_dy_dx=(2*(dy-dx)); int p=((2*dy)-dx); int x=x1; int y=y1; putpixel(x,y,color); while(x<x2) { x++; if(p<0) p+=two_dy; else { y+=inc_dec; p+=two_dy_dx; } putpixel(x,y,color); } } else { int two_dx=(2*dx); int two_dx_dy=(2*(dx-dy)); int p=((2*dx)-dy); int x=x1; int y=y1; putpixel(x,y,color); while(y!=y2) { y+=inc_dec; if(p<0) p+=two_dx; else { x++; p+=two_dx_dy; } putpixel(x,y,color); } } } //-------------------------- show_screen( ) ---------------------------// void show_screen( ) { setfillstyle(1,1); bar(262,26,365,38); settextstyle(0,0,1); setcolor(15); outtextxy(5,5,\"******************************************************************************\"); outtextxy(5,17,\"*-**************************************************************************-*\"); outtextxy(5,29,\"*------------------------------ -------------------------------*\"); outtextxy(5,41,\"*-**************************************************************************-*\"); outtextxy(5,53,\"*-**************************************************************************-*\"); setcolor(11); outtextxy(270,29,\"Chess Board\"); setcolor(15); for(int count=0;count<=30;count++) outtextxy(5,(65+(count*12)),\"*-* *-*\"); outtextxy(5,438,\"*-**************************************************************************-*\"); outtextxy(5,450,\"*------------------------- -------------------------*\"); outtextxy(5,462,\"******************************************************************************\"); setcolor(12); outtextxy(229,450,\"Press any Key to exit.\"); }