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This is good start-up program for computer graphics programming using C and C++.
# include <iostream> # include <graphics.h> # include <conio.h> # include <math.h> void show_screen( ); void show_start(const int,const int); void show_stay(const int,const int); void show_player_positions(const int,const int,const int); 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); void Circle(const int,const int,const int); void Polygon(const int,const int []); int main( ) { int driver=VGA; int mode=VGAHI; initgraph(&driver,&mode,"..\\Bgi"); show_screen( ); setcolor(8); Rectangle(126,44,516,434); setcolor(7); Fill_rectangle(126,44,516,434); setcolor(8); for(int count_1=6;count_1<10;count_1++) { Line((126+(count_1*26)),44,(126+(count_1*26)),434); Line(126,(44+(26*count_1)),516,(44+(26*count_1))); } for(int count_2=0;count_2<14;count_2++) { Line((152+(count_2*26)),201,(152+(count_2*26)),278); Line(282,(70+(26*count_2)),360,(70+(26*count_2))); } for(int count_3=0;count_3<15;count_3++) { setcolor((count_3+1)); Rectangle((106+count_3),(24+count_3),(536-count_3),(454-count_3)); if(count_3<10) { Rectangle((284+count_3),(202+count_3),(358-count_3),(276-count_3)); Rectangle((128+count_3),(46+count_3),(280-count_3),(198-count_3)); Rectangle((128+count_3),(280+count_3),(280-count_3),(432-count_3)); Rectangle((362+count_3),(46+count_3),(514-count_3),(198-count_3)); Rectangle((362+count_3),(280+count_3),(514-count_3),(432-count_3)); } } setcolor(11); Fill_rectangle(294,212,348,266); setcolor(12); Fill_rectangle(138,56,270,188); show_player_positions(138,56,12); setcolor(9); Fill_rectangle(138,290,270,422); show_player_positions(138,290,9); setcolor(10); Fill_rectangle(372,56,504,188); show_player_positions(372,56,10); setcolor(14); Fill_rectangle(372,290,504,422); show_player_positions(372,290,14); for(int count_4=24;count_4>0;count_4--) { setcolor(count_4); Circle(321,239,count_4); } setcolor(6); for(int count_5=0;count_5<5;count_5++) Rectangle((121+count_5),(39+count_5),(521-count_5),(439-count_5)); for(int count_6=0;count_6<5;count_6++) { setcolor(12); Fill_rectangle((152+(count_6*26)),226,(178+(count_6*26)),252); show_stay((152+(count_6*26)),226); } setcolor(12); Fill_rectangle(152,200,178,226); Fill_rectangle(178,252,204,278); show_stay(178,252); show_start(152,200); for(int count_7=0;count_7<5;count_7++) { setcolor(10); Fill_rectangle(308,(70+(count_7*26)),334,(96+(count_7*26))); show_stay(308,(70+(count_7*26))); } setcolor(10); Fill_rectangle(282,96,308,122); Fill_rectangle(334,70,360,96); show_stay(282,96); show_start(334,70); for(int count_8=0;count_8<5;count_8++) { setcolor(14); Fill_rectangle((490-(count_8*26)),226,(464-(count_8*26)),252); show_stay((464-(count_8*26)),226); } setcolor(14); Fill_rectangle(438,200,464,226); Fill_rectangle(464,252,490,278); show_stay(438,200); show_start(464,252); for(int count_9=0;count_9<5;count_9++) { setcolor(9); Fill_rectangle(308,(408-(count_9*26)),334,(382-(count_9*26))); show_stay(308,(382-(count_9*26))); } setcolor(9); Fill_rectangle(282,382,308,408); Fill_rectangle(334,356,360,382); show_stay(334,356); show_start(282,382); getch( ); return 0; } /*************************************************************************///--------------------- show_player_positions( ) ----------------------///*************************************************************************/ void show_player_positions(const int x,const int y,const int color) { setcolor(0); Fill_rectangle((x+25),(y+25),(x+45),(y+45)); Fill_rectangle((x+87),(y+25),(x+107),(y+45)); Fill_rectangle((x+25),(y+87),(x+45),(y+107)); Fill_rectangle((x+87),(y+87),(x+107),(y+107)); char Start[2]={char(02),NULL}; setcolor(color); settextstyle(0,0,1); outtextxy((x+32),(y+31),Start); outtextxy((x+94),(y+31),Start); outtextxy((x+32),(y+93),Start); outtextxy((x+94),(y+93),Start); for(int count=3;count<=8;count++) { setcolor(count); Circle((x+35),(y+35),(7+count)); Circle((x+97),(y+35),(7+count)); Circle((x+35),(y+97),(7+count)); Circle((x+97),(y+97),(7+count)); } } /*************************************************************************///---------------------------- show_start( ) --------------------------///*************************************************************************/ void show_start(const int x,const int y) { int hexagon[14]={ (x+13),(y+4), (x+22),(y+8), (x+22),(y+18), (x+13),(y+22), (x+4),(y+18), (x+4),(y+8), (x+13),(y+4) }; char Start[2]={char(01),NULL}; setcolor(0); Polygon(7,hexagon); settextstyle(0,0,1); outtextxy((x+10),(y+9),Start); } /*************************************************************************///----------------------------- show_stay( ) --------------------------///*************************************************************************/ void show_stay(const int x,const int y) { int hexagon[14]={ (x+13),(y+4), (x+22),(y+8), (x+22),(y+18), (x+13),(y+22), (x+4),(y+18), (x+4),(y+8), (x+13),(y+4) }; char Start[2]={char(04),NULL}; setcolor(0); Polygon(7,hexagon); settextstyle(0,0,1); outtextxy((x+10),(y+10),Start); } /*************************************************************************///----------------------------- Polygon( ) ----------------------------///*************************************************************************/ void Polygon(const int n,const int coordinates[]) { if(n>=2) { Line(coordinates[0],coordinates[1], coordinates[2],coordinates[3]); for(int count=1;count<(n-1);count++) Line(coordinates[(count*2)],coordinates[((count*2)+1)], coordinates[((count+1)*2)], coordinates[(((count+1)*2)+1)]); } } /*************************************************************************///--------------------------- 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); } } } /*************************************************************************///----------------------------- Circle( ) -----------------------------///*************************************************************************/ void Circle(const int h,const int k,const int r) { int color=getcolor( ); int x=0; int y=r; int p=(1-r); do { putpixel((h+x),(k+y),color); putpixel((h+y),(k+x),color); putpixel((h+y),(k-x),color); putpixel((h+x),(k-y),color); putpixel((h-x),(k-y),color); putpixel((h-y),(k-x),color); putpixel((h-y),(k+x),color); putpixel((h-x),(k+y),color); x++; if(p<0) p+=((2*x)+1); else { y--; p+=((2*(x-y))+1); } } while(x<=y); } /*************************************************************************///-------------------------- show_screen( ) ---------------------------///*************************************************************************/ void show_screen( ) { setfillstyle(1,1); bar(268,2,372,14); settextstyle(0,0,1); setcolor(15); outtextxy(5,5,"******************************** *******************************"); setcolor(11); outtextxy(273,5,"Luddo Board"); setcolor(15); for(int count=0;count<=36;count++) outtextxy(5,(19+(count*12)),"* *"); outtextxy(5,467,"************************** **************************"); setcolor(12); outtextxy(229,467,"Press any Key to exit."); }