C LANGUAGE

#include <stdio.h>
#include <time.h>
#include <stdlib.h>
#include <conio.h>
#include<time.h>
#include<ctype.h>
#include <time.h>
#include <windows.h>
#include <process.h>

#define UP 72
#define DOWN 80
#define LEFT 75
#define RIGHT 77

int length;
int bend_no;
int len;
char key;
void record();
void load();
int life;
void Delay(long double);
void Move();
void Food();
int Score();
void Print();
void gotoxy(int x, int y);
void GotoXY(int x,int y);
void Bend();
void Boarder();
void Down();
void Left();
void Up();
void Right();
void ExitGame();
int Scoreonly();

struct coordinate{
int x;
int y;
int direction;
};

typedef struct coordinate coordinate;

coordinate head, bend[500],food,body[30];

int main()
{

char key;

Print();

system("cls");

load();

length=5;

head.x=25;

head.y=20;

head.direction=RIGHT;

Boarder();

Food(); //to generate food coordinates initially

life=3; //number of extra lives

bend[0]=head;

Move(); //initialing initial bend coordinate

return 0;

}

void Move()
{
int a,i;

do{

Food();
fflush(stdin);

len=0;

for(i=0;i<30;i++)

{

body[i].x=0;

body[i].y=0;

if(i==length)

break;

}

Delay(length);

Boarder();

if(head.direction==RIGHT)

Right();

else if(head.direction==LEFT)

Left();

else if(head.direction==DOWN)

Down();

else if(head.direction==UP)

Up();

ExitGame();

}while(!kbhit());

a=getch();

if(a==27)

{

system("cls");

exit(0);

}
key=getch();

if((key==RIGHT&&head.direction!=LEFT&&head.direction!=RIGHT)||(key==LEFT&&head.direction!=RIGHT&&head.direction!=LEFT)||(key==UP&&head.direction!=DOWN&&head.direction!=UP)||(key==DOWN&&head.direction!=UP&&head.direction!=DOWN))

{

bend_no++;

bend[bend_no]=head;

head.direction=key;

if(key==UP)

head.y--;

if(key==DOWN)

head.y++;

if(key==RIGHT)

head.x++;

if(key==LEFT)

head.x--;

Move();

}

else if(key==27)

{

system("cls");

exit(0);

}

else

{

printf("\a");

Move();

}
}

void gotoxy(int x, int y)
{

COORD coord;

coord.X = x;

coord.Y = y;

SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), coord);

}
void GotoXY(int x, int y)
{
HANDLE a;
COORD b;
fflush(stdout);
b.X = x;
b.Y = y;
a = GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleCursorPosition(a,b);
}
void load(){
int row,col,r,c,q;
gotoxy(36,14);
printf("loading...");
gotoxy(30,15);
for(r=1;r<=20;r++){
for(q=0;q<=100000000;q++);//to display the character slowly
printf("%c",177);}
getch();
}
void Down()
{
int i;
for(i=0;i<=(head.y-bend[bend_no].y)&&len<length;i++)
{
GotoXY(head.x,head.y-i);
{
if(len==0)
printf("v");
else
printf("*");
}
body[len].x=head.x;
body[len].y=head.y-i;
len++;
}
Bend();
if(!kbhit())
head.y++;
}
void Delay(long double k)
{
Score();
long double i;
for(i=0;i<=(10000000);i++);
}
void ExitGame()
{
int i,check=0;
for(i=4;i<length;i++) //starts with 4 because it needs minimum 4 element to touch its own body
{
if(body[0].x==body[i].x&&body[0].y==body[i].y)
{
check++; //check's value increases as the coordinates of head is equal to any other body coordinate
}
if(i==length||check!=0)
break;
}
if(head.x<=10||head.x>=70||head.y<=10||head.y>=30||check!=0)
{
life--;
if(life>=0)
{
head.x=25;
head.y=20;
bend_no=0;
head.direction=RIGHT;
Move();
}
else
{
system("cls");
printf("All lives completed\nBetter Luck Next Time!!!\nPress any key to quit the game\n");
record();
exit(0);
}
}
}
void Food()
{
if(head.x==food.x&&head.y==food.y)
{
length++;
time_t a;
a=time(0);
srand(a);
food.x=rand()%70;
if(food.x<=10)
food.x+=11;
food.y=rand()%30;
if(food.y<=10)

food.y+=11;
}
else if(food.x==0)/*to create food for the first time coz global variable are initialized with 0*/
{
food.x=rand()%70;
if(food.x<=10)
food.x+=11;
food.y=rand()%30;
if(food.y<=10)
food.y+=11;
}
}
void Left()
{
int i;
for(i=0;i<=(bend[bend_no].x-head.x)&&len<length;i++)
{
GotoXY((head.x+i),head.y);
{
if(len==0)
printf("<");
else
printf("*");
}
body[len].x=head.x+i;
body[len].y=head.y;
len++;
}
Bend();
if(!kbhit())
head.x--;

}
void Right()
{
int i;
for(i=0;i<=(head.x-bend[bend_no].x)&&len<length;i++)
{
//GotoXY((head.x-i),head.y);
body[len].x=head.x-i;
body[len].y=head.y;
GotoXY(body[len].x,body[len].y);
{
if(len==0)
printf(">");
else
printf("*");
}
/*body[len].x=head.x-i;
body[len].y=head.y;*/
len++;
}
Bend();
if(!kbhit())
head.x++;
}
void Bend()
{
int i,j,diff;
for(i=bend_no;i>=0&&len<length;i--)
{
if(bend[i].x==bend[i-1].x)
{
diff=bend[i].y-bend[i-1].y;
if(diff<0)
for(j=1;j<=(-diff);j++)
{
body[len].x=bend[i].x;
body[len].y=bend[i].y+j;
GotoXY(body[len].x,body[len].y);
printf("*");
len++;
if(len==length)
break;
}
else if(diff>0)
for(j=1;j<=diff;j++)
{
/*GotoXY(bend[i].x,(bend[i].y-j));
printf("*");*/
body[len].x=bend[i].x;
body[len].y=bend[i].y-j;
GotoXY(body[len].x,body[len].y);
printf("*");
len++;
if(len==length)
break;
}
}
else if(bend[i].y==bend[i-1].y)
{
diff=bend[i].x-bend[i-1].x;
if(diff<0)
for(j=1;j<=(-diff)&&len<length;j++)
{
/*GotoXY((bend[i].x+j),bend[i].y);
printf("*");*/
body[len].x=bend[i].x+j;
body[len].y=bend[i].y;
GotoXY(body[len].x,body[len].y);
printf("*");
len++;
if(len==length)
break;
}
else if(diff>0)
for(j=1;j<=diff&&len<length;j++)
{
/*GotoXY((bend[i].x-j),bend[i].y);
printf("*");*/
body[len].x=bend[i].x-j;
body[len].y=bend[i].y;
GotoXY(body[len].x,body[len].y);
printf("*");
len++;
if(len==length)
break;
}
}
}
}
void Boarder()
{
system("cls");
int i;
GotoXY(food.x,food.y); /*displaying food*/
printf("F");
for(i=10;i<71;i++)
{
GotoXY(i,10);
printf("!");
GotoXY(i,30);
printf("!");
}
for(i=10;i<31;i++)
{
GotoXY(10,i);
printf("!");
GotoXY(70,i);
printf("!");
}
}
void Print()
{
//GotoXY(10,12);
printf("\tWelcome to the mini Snake game.(press any key to continue)\n");
getch();
system("cls");
printf("\tGame instructions:\n");
printf("\n-> Use arrow keys to move the snake.\n\n-> You will be provided foods at the several coordinates of the screen which you have to eat. Everytime you eat a food the length of the snake will be increased by 1 element and thus the score.\n\n-> Here you are provided with three lives. Your life will decrease as you hit the wall or snake's body.\n\n-> YOu can pause the game in its middle by pressing any key. To continue the paused game press any other key once again\n\n-> If you want to exit press esc. \n");
printf("\n\nPress any key to play game...");
if(getch()==27)
exit(0);
}
void record(){
char plname[20],nplname[20],cha,c;
int i,j,px;
FILE *info;
info=fopen("record.txt","a+");
getch();
system("cls");
printf("Enter your name\n");
scanf("%[^\n]",plname);
//************************
for(j=0;plname[j]!='\0';j++){ //to convert the first letter after space to capital
nplname[0]=toupper(plname[0]);
if(plname[j-1]==' '){
nplname[j]=toupper(plname[j]);
nplname[j-1]=plname[j-1];}
else nplname[j]=plname[j];
}
nplname[j]='\0';
//*****************************
//sdfprintf(info,"\t\t\tPlayers List\n");
fprintf(info,"Player Name :%s\n",nplname);
//for date and time

time_t mytime;
mytime = time(NULL);
fprintf(info,"Played Date:%s",ctime(&mytime));
//**************************
fprintf(info,"Score:%d\n",px=Scoreonly());//call score to display score
//fprintf(info,"\nLevel:%d\n",10);//call level to display level
for(i=0;i<=50;i++)
fprintf(info,"%c",'_');
fprintf(info,"\n");
fclose(info);
printf("wanna see past records press 'y'\n");
cha=getch();
system("cls");
if(cha=='y'){
info=fopen("record.txt","r");
do{
putchar(c=getc(info));
}while(c!=EOF);}
fclose(info);
}
int Score()
{
int score;
GotoXY(20,8);
score=length-5;
printf("SCORE : %d",(length-5));
score=length-5;
GotoXY(50,8);
printf("Life : %d",life);
return score;
}
int Scoreonly()
{
int score=Score();
system("cls");
return score;
}
void Up()
{
int i;
for(i=0;i<=(bend[bend_no].y-head.y)&&len<length;i++)
{
GotoXY(head.x,head.y+i);
{
if(len==0)
printf("^");
else
printf("*");
}
body[len].x=head.x;
body[len].y=head.y+i;
len++;
}
Bend();
if(!kbhit())
head.y--;
}

C++ arrays:

I am giving you the intro of an array. An array lets you declare and work with a collection of values of the same type. Let’s say you want to declare four integers.You would do something like this: int a , b , c , d; What if you wanted to declare a thousand variables? That will take you a long time to type. This is where arrays come in handy. An easier way is to declare an array of four integers, like this: int a[4]; The four separate integers inside this array are accessed by an index. Each element can be accessed, by using square brackets, with the element number inside. All arrays start at element zero and will go to n-1. (In this case from 0 to 3.)

Note:

The index number, which represents the number of elements the array is going to hold, must be a constant value. Because arrays are build out of non-dynamic memory blocks. we will explain arrays with a variable length, which uses dynamic memory. So if we want to fill each element you get something like this:

int a[4];

a[0] = 1;

a[1] = 2;

a[2] = 3;

a[3] = 4;

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