আমি যখন ২০০৮ সালে প্রোগ্রামিং প্রতিযোগীতায় অংশগ্রহন করেছিলাম তখন এই প্রগ্রাম টি দিয়েছিলাম এবং লিস্ট এ ছিলাম । তখন আর সফটওয়্যার বানানো জানতাম না বলে ১ম/২য়/৩য় হতে পারিনি।অথচ এখন সফটওয়্যার বানাতে খুব ভালো লাগে।নিজের সফটওয়্যার নিজে ব্যাবহার করি।
নিচের প্রগ্রাম টি নোটপ্যাড এ paste করে sr3.cpp নামে সেভ করুন।এবং এটি C ড্রাইভ এ TC এর মধ্যে bin এর মধ্যে রাখুন ।এবার ফাইল টি compile করে দেখুন।

#include <graphics.h>
#include <stdlib.h>
#include <math.h>
#include <stdio.h>
#include <conio.h>
#include <dos.h>
#include <iostream.h>

class Snake
{

public :

Snake(int x,int y)
{
xPos=x;
yPos=y;
};
/* ~Snake()
{
;
};
*/
int length,size,color,xPos,yPos,stIndex,dlIndex;
int borderColor,snakeColor,scr,sp;
int  objX,objY;
int xArr[8000];
int yArr[8000];
float speed;

void menu();
void menu2();
void newgame();
void instruction();
void quit();

int moveXRight();
int moveXLeft();
int moveYUp();
int moveYDown();
void store(void);
void erase(void);
void init1(void);
void init2(void);
void init3(void);
void test(int x);
void putAnObject(void);
void getAkey(void);
void score(void);

void gameOver();
void easy();
void medium();
void hard();
void logo();
};

int Snake::moveXRight()
{
for (int i=0 ; i<800; i++)
{
setcolor(4);
store();
circle(xPos++,yPos,4);
delay(speed);
erase();
test(1);
if (xPos % 10 ==0)
if (kbhit())
break;
}

return xPos;
}

int Snake::moveXLeft(void)
{
for (int i=0 ; i<800; i++)
{
setcolor(4);
store();
circle(xPos--,yPos,4);
delay(speed);
erase();
test(2);
if (xPos % 10 ==0)
if (kbhit())
break;
}

return xPos;
}

int Snake::moveYUp()
{
for (int i=0 ; i<800; i++)
{
setcolor(4);
store();
circle(xPos,yPos--,4);
delay(speed);
erase();
test(3);
if (yPos % 10 ==0)
if (kbhit())
break;
}

return yPos;
}

int Snake::moveYDown()
{
for (int i=0 ; i<800; i++)
{
setcolor(4);
store();
circle(xPos,yPos++,4);
delay(speed);
erase();
test(4);
if (yPos % 10 ==0)
if (kbhit())
break;
}

return yPos;
}

void Snake::store()
{

xArr[stIndex]= xPos;
yArr[stIndex]= yPos;
stIndex++;

if (stIndex == size)
stIndex=0;
}

void Snake::erase()
{

setcolor(0);
if (dlIndex-length >=0)
{
circle(xArr[dlIndex-length],yArr[dlIndex-length],4);
}
else
circle(xArr[size-abs(dlIndex-length)],yArr[size-abs(dlIndex-length)],4);

dlIndex++;
if (dlIndex == size)
dlIndex =0;
}

void Snake::getAkey(void)
{
char key;
for (int k=0 ;k<3 ;k++)
{

k=1;// infinite loop
key = getche();
if (key == 'M')           //scan_right asci value 77, M =77
xPos = moveXRight();
if (key == 'K')
xPos = moveXLeft();

if (key == 'H')
yPos = moveYUp();
if (key == 'P')
yPos = moveYDown();
if (key=='b' || key== 'B')
menu2();
//    if(key=='\n')
//    menu2();

}
}

void Snake::test(int x)
{
int tst;

switch (x)
{
case 1:       //when moving right
{
tst = getpixel(xPos+4,yPos);
if (xPos == objX*10 && yPos == objY*10)
score();
if (tst== borderColor || tst == snakeColor)
gameOver();
break;
}// Game over
//left
case 2:
{
tst = getpixel(xPos-4,yPos);
if (xPos == objX*10 && yPos == objY*10)
score();
if (tst== borderColor || tst == snakeColor)
gameOver();
break;
}// Game over
//up
case 3:
{
tst = getpixel(xPos,yPos-4);
if (xPos == objX*10 && yPos == objY*10)
score();
if (tst== borderColor || tst == snakeColor)
gameOver();
break;
}// Game over
//down
case 4:
{
tst = getpixel(xPos,yPos+4);
if (xPos == objX*10 && yPos == objY*10)
score();
if (tst== borderColor || tst == snakeColor)
gameOver();
break;
}

}// end of switch
}

void Snake::init1(void)
{

borderColor = YELLOW;
setcolor(RED);
settextstyle(0, 0, 4);
outtextxy(50,50,"ROMEL");
gotoxy(30,6);
cout<<"SCORE : 0";
gotoxy(60,6);
cout<<"SPEED : 10";

settextstyle(7,0,1);
//    setcolor(DARKGRAY);

setcolor(GREEN);
outtextxy(200,450,"*** press B or b <- go_back ***");

//setbkcolor(6);
setcolor(borderColor);
rectangle(100,100,540,380);
rectangle(105,105,535,375);
rectangle(110,110,530,370);

scr=0;
sp=10;
dlIndex=0;
stIndex=0;
speed=10;

snakeColor = RED;
size   = 7999;
length = 50;
for (int i=0 ;i<8000; i++)
{
xArr[i] = 0;
yArr[i] = 0;
}
//getch();
//    menu2();

}

void Snake::init2(void)
{
borderColor = BLUE;
setcolor(RED);
settextstyle(0, 1, 6);
outtextxy(50,10,"ROMEL");
gotoxy(14,6);
cout<<"SCORE : 0";
gotoxy(60,6);
cout<<"SPEED : 10";

settextstyle(7,0,1);
//    setcolor(DARKGRAY);

setcolor(GREEN);
outtextxy(255,450,"*** press B or b <- go_back ***");

//setbkcolor(6);
setcolor(borderColor);
rectangle(100,100,540,380);
rectangle(105,105,535,375);
rectangle(110,110,530,370);
line(220,220,420,220);

scr=0;
sp=10;
dlIndex=0;
stIndex=0;

speed=8;

snakeColor = RED;
size   = 7999;
length = 50;
for (int i=0 ;i<8000; i++)
{
xArr[i] = 0;
yArr[i] = 0;
}
//    getch();
///    menu();

}

void Snake::init3(void)
{
borderColor = BLUE;
setcolor(RED);
settextstyle(0, 1, 6);
outtextxy(50,10,"ROMEL");
gotoxy(14,6);
cout<<"SCORE : 0";
gotoxy(60,6);
cout<<"SPEED : 10";

settextstyle(7,0,1);
//    setcolor(DARKGRAY);

setcolor(GREEN);
outtextxy(255,450,"*** press B or b <- go_back ***");

//setbkcolor(6);
setcolor(borderColor);
rectangle(100,100,540,380);
rectangle(105,105,535,375);
rectangle(110,110,530,370);

line(220,195,420,195);
line(420,195,420,295);
line(220,295,420,295);
scr=0;
sp=10;
dlIndex=0;
stIndex=0;

speed=6;

snakeColor = RED;
size   = 7999;
length = 50;
for (int i=0 ;i<8000; i++)
{
xArr[i] = 0;
yArr[i] = 0;
}
//    getch();
///    menu();

}

void Snake::putAnObject()
{
int test2=0;

for (int i=0 ;i<1000 ; i++)
{
objX = random(41)+12 ;
objY = random(25)+12 ;     // the less minus 10

test2 = getpixel(objX*10,objY*10);
setcolor(GREEN);
if (test2 != snakeColor)
{

circle(objX*10,objY*10,4);
setfillstyle(7 ,WHITE);
fillellipse(objX*10,objY*10,4,4);
break;
}
}
}

void Snake::gameOver()
{
setcolor(WHITE);
//    ellipse(320, 240,30,30, 170, 25);
setfillstyle(9 ,BLUE);
fillellipse(320, 240, 170, 25);
settextstyle(0,0,2);
setcolor(RED);
outtextxy(188,232,"G A M E  O V E R ");

sound(1100);
delay(1000);
nosound();
getch();
//    getch();
// getch();
logo();
getch();
menu();
}

void Snake::logo()
{
cleardevice();

setcolor(RED);
settextstyle(0, 1, 6);
outtextxy(50,10,"SIMANTO");
int sz=0,dl=100;

for (int i=0 ;i!='\n'; i++)
{

if (sz < 4)
sz++;
cleardevice();
gotoxy(35,20);
cout<<"Score: ";
cout<<scr;

setcolor(i);
settextstyle(0,0,sz);
if (scr==0)
{
outtextxy(150,200,"Hi looser! ");
delay(dl);
}
else
{
outtextxy(150,200,"GADHA ! ");
delay(dl);
}
}

getch();
cleardevice();
menu();

}

void Snake::easy()
{
cleardevice();
xPos=320;
yPos=240;
init1();

randomize();
putAnObject();
getAkey();

}

void Snake::medium()
{
cleardevice();
xPos=320;
yPos=240;
init2();
randomize();
putAnObject();
getAkey();
}

void Snake::hard()
{
cleardevice();
xPos=320;
yPos=240;
init3();
randomize();
putAnObject();
getAkey();
}

void Snake::score()
{
scr+=10;
sp+=2;
speed=speed-0.1;
//scr+=15;
//scr+=20;
gotoxy(14,6);
cout<<"SCORE : ";
cout<<scr;

gotoxy(60,6);
cout<<"SPEED : ";
cout<<sp;
sound(800);
delay(80);
nosound();
length+=15;
//length+=15;
//length+=20;
putAnObject();
}

void Snake::menu()
{

cleardevice();
setcolor(RED);
settextstyle(0, 1, 6);
outtextxy(50,10,"SIAMNTO");
gotoxy(14,6);
borderColor=GREEN;
setcolor(borderColor);
rectangle(100,100,540,380);
rectangle(105,105,535,375);
rectangle(110,110,530,370);

setcolor(GREEN);
gotoxy(35,14);
cout<<"1. Start Game";
gotoxy(35,16);
cout<<"2. Isntruction";
gotoxy(35,18);
cout<<"3. Quit";

settextstyle(7,0,1);
setcolor(GREEN);
outtextxy(170,450,"*** Enter 1,2 or 3 for select option ***");

char ch;
ch=getch();
switch ( ch )                        // detects which option was chosen
{
// based on the y location of the arrow
case '1':
menu2();                    // Starts a new game
break;
case '2':
instruction();                    // shows the credits
break;

case '3':
quit();                       // quits
break;

}                                 // this returns to top
}

void Snake::quit()
{

exit(1);
}

void Snake::instruction()
{
cleardevice();

gotoxy(20,8);
cout<<"Enter 1 for Start Game";
gotoxy(24,10);
cout<<"Enter 1 for Easy Game";
gotoxy(24,12);
cout<<"Enter 2 for Medium Game";
gotoxy(24,14);
cout<<"Enter 3 for Hard Game";

gotoxy(20,16);
cout<<"Enter 2 for Instruction";
gotoxy(20,18);
cout<<"Enter 3 for Quit";
gotoxy(20,20);
cout<<"-> turn right, <- turn left";
gotoxy(20,22);
cout<<"Up arrow turn up and Down arrow turn down";

settextstyle(7,0,1);
setcolor(GREEN);
outtextxy(240,450,"*** press ENTER <-- back***");

getch();
menu();
}
void Snake::menu2()
{

cleardevice();
setcolor(RED);
settextstyle(0, 1, 6);
outtextxy(50,10,"SIMANTO");
//  gotoxy(14,6);
borderColor=GREEN;
setcolor(borderColor);
rectangle(100,100,540,380);
rectangle(105,105,535,375);
rectangle(110,110,530,370);

setcolor(GREEN);
gotoxy(35,14);
cout<<"1. Easy game";
gotoxy(35,16);
cout<<"2. Medium game";
gotoxy(35,18);
cout<<"3. Hard game";
settextstyle(7,0,1);
setcolor(GREEN);
outtextxy(110,450,"Enter 1,2 or 3 for select game*** press ENTER <-- back***");

char ch;
ch=getch();
switch ( ch )
{
case '1':
easy();
break;
case '2':
medium();
break;

case '3':
hard();
break;

}

//getch();
menu();                                     // this returns to top
}

void main(void)      /* MAIN */
{

int gdriver = DETECT, gmode, errorcode;
initgraph(&gdriver, &gmode, "c:\\tc\\bgi");
randomize();
Snake   snake(320,240);
snake.menu();
snake.init1();
snake.init2();
snake.init3();
snake.putAnObject();
snake.getAkey();
getch();
closegraph();
}

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