Closed (GAME) Simple Snake Like Game

Simple game sa c/c++ .. Share ko lang..

code:

#include <iostream> // including required headers
#include <cstdlib>
#include <ctime>
#include <conio.h>
#include <windows.h>
#include <fstream>
#include <iomanip>

using namespace std;
//several functions for certain operations
void menu();
void game();
void controls(char s[][22],int temp[][22],int eating);
void credits();
void table(char s[][22],int score);
bool checkFood(char s[][22],int fx,int fy);
void spawnFood(char s[][22],int & fx,int & fy);
bool gameover(char s[][22],int temp[][22]);
void endgame(int score,int highscore);
void help();
void options();
void difficulty();
void pause();

int lenght; //several variables
char contr='n';
int chek[32][22];
double diff=0.5; //difficulty variable, how fast snake moves (default-normal(0.5 sec)

int main()
{
srand(time(0)); //seeding random numb gen
int i;
char sl; //selection variable
for(i=0;i<9999;i++)
{
if(i>0)
{
cout<<""<<endl;
cout<<"Do you want to play again ? [y/n] ";
cin>>sl;
if(sl=='y')
{
system("cls"); //clearing screen
goto start;
}
else goto quit;
}
start: //starting program
{
menu(); //showing menu screen
}
cin>>sl; //selections for playing,options and exit
if(sl=='1')
{
system("cls"); //clears screen
game(); //calling game function, starting game
i=1;
}
else if(sl=='2')
{
options();
system("cls");
goto start;
i=1;
}
else if(sl=='3') goto quit;
else
{
system("cls");
i=1;
goto start;
}
}
quit: //quits program
{
system("exit");
}

return 0;
}


void table(char s[][22],int score) //function for showing table (screen in which snake moves
{
int x=32; //i am using coordinates for displaying the table
int y=22;
int i,j;
for(i=0;i<y;i++)
{
for(j=0;j<x;j++)
{
if(j<(x-1)) cout<<s[j];
if(j==(x-1)) cout<<s[j]<<endl;
}
}
cout<<""<<endl;
cout<<"Your score: "<<score;
}

void game()
{
char s[32][22]; //a 2-dimensional array for storing all particles in the screen;
int temp[32][22]; //an array for numbering snake parts and storing them
int i,j,fx,fy,x,y,score=0,highscore=score; //several variables
double k;
int eating; //if snake eats food, this becomes 1, and snake gains lenght
//preparations for game: setting table borders
for(i=0;i<22;i++)
{
for(j=0;j<32;j++)
{
if(i==0 || i==21) s[j]='-';
if(i>0 && i<21) s[j]=' ';
if(j==0 || j==31) s[j]='|';
}
}
spawnFood(s,fx,fy); //calling food spawn function
for(y=1;y<21;y++)
{
for(x=1;x<31;x++)
{
temp[x][y]=0; //setting all the temp values to 0,
} //to see where snake parts are, and where nothing (0);
}
s[17][10]='o'; //finally, sets primary centipede position. o is head.
s[16][10]='*';
s[15][10]='*';

temp[15][10]=3; //numbering centipede parts
temp[16][10]=2;
temp[17][10]=1;

system("cls");
table(s,score); //calling table function to show a table
lenght=3; //snake primary lenght

while(true) //game starts
{
eating=0; //setting value to 0, because snake hasnt eaten anything
Sleep(diff*1000); //delaying some time, how fast snake moves depends on difficulty
if(kbhit()) //checking if some key is pressed
{
contr=getch(); //if pressed, getting info about that key. this is needed for snake controls
if(contr=='0') pause(); //if 0, pauses game
goto movemake; //starts making snake moves
}
else
{
goto movemake; //if no key is pressed, snake just moves
}
movemake:
{
for(x=1;x<31;x++) //a loop for checking where are snake parts
{
for(y=1;y<21;y++)
{
if(s[x][y]=='*')
{
chek[x][y]=1; //this is needed for checking if snake hits its tail or borders
}
else chek[x][y]=0;
}
}
if(checkFood(s,fx,fy)==true) //if snake eats something, some info needs to be sent for snake to gain lenght
{
eating=1;
score=score+1;
controls(s,temp,eating); //calling snake control and movement function
spawnFood(s,fx,fy);
}
else
{
controls(s,temp,eating); //snake only moves
}

if(gameover(s,temp)==true) goto gameEnd; //if snake has hit something, game terminates
else
{
goto LoopEnd;
}
}

LoopEnd: //when loop ends, screen clears, updated table and score shows
{
system("cls");
table(s,score);
if(score>highscore) highscore=score;
}
}
gameEnd:
{
endgame(score,highscore); //calls endgame screen
return; //returns to int main
}
}
void controls(char s[][22],int temp[][22],int eating) //finally, the coolest part
{
int i,x,y;
for(i=lenght;i>0;i--) //snake starts moving from tail to head
{
if(i==lenght) //when i equals to the number of snakes last part
{
for(x=1;x<31;x++)
{
for(y=1;y<21;y++)
{
if(temp[x][y]==i && s[x][y]=='*')
{
if(eating==0) //if snake doesnt eat anything, the last part just disappears
{
s[x][y]=' '; temp[x][y]=0;
x=30;
y=20;
}
else if(eating==1) //if snake eats food, it moves, but the last part stays there,
{ //giving snake 1 more part
s[x][y]='*'; temp[x][y]=lenght+1;
lenght++; //this new part number will be new length
x=30;
y=20;
}
}
}
}
}
else if(i>1 && i<lenght) // all other snake parts stays where they are, but
{ // their values (temp) will increase by 1
for(x=1;x<31;x++)
{
for(y=1;y<21;y++)
{
if(temp[x][y]==i && s[x][y]=='*')
{
temp[x][y]=i+1;
x=30;
y=20;
}
}
}
}
else if(i==1) //the hardest part, when i is equal to snake's head value.
{
for(x=1;x<31;x++)
{
for(y=1;y<21;y++)
{
if(temp[x][y]==i && s[x][y]=='o')
{
movecheck:
if(contr!='8' && contr!='2' && contr!='4' && contr!='6') //if no control button is pressed,
{ //snake just moves in its direction forward
s[x][y]='*'; temp[x][y]=i+1;
if(temp[x-1][y]==i+2) //several situations
{
s[x+1][y]='o'; temp[x+1][y]=1;
return; //when snake moves its head, loop ends, we return to void game
}
else if(temp[x+1][y]==i+2)
{
s[x-1][y]='o'; temp[x-1][y]=1;
return;
}
else if(temp[x][y+1]==i+2)
{
s[x][y-1]='o'; temp[x][y-1]=1;
return;
}
else if(temp[x][y-1]==i+2)
{
s[x][y+1]='o'; temp[x][y+1]=1;
return;
}
}
else if(contr=='8') //if control buttons are pressed, snake moves to that direction
{
if(temp[x][y-1]==0) //if the value of the square in front of snake's head equals 0
{ //snake can move to it
s[x][y]='*'; temp[x][y]=i+1;
s[x][y-1]='o'; temp[x][y-1]=1;
return;
}
else //if not, we return to checking if control button is pressed
{ //the new contr value will not be control button
contr='n';
goto movecheck;
}
}
else if(contr=='2')
{
if(temp[x][y+1]==0)
{
s[x][y]='*'; temp[x][y]=i+1;
s[x][y+1]='o'; temp[x][y+1]=1;
return;
}
else
{
contr='n';
goto movecheck;
}
}
else if(contr=='4')
{
if(temp[x-1][y]==0)
{
s[x][y]='*'; temp[x][y]=i+1;
s[x-1][y]='o'; temp[x-1][y]=1;
return;
}
else
{
contr='n';
goto movecheck;
}
}
else if(contr=='6')
{
if(temp[x+1][y]==0)
{
s[x][y]='*'; temp[x][y]=i+1;
s[x+1][y]='o'; temp[x+1][y]=1;
return;
}
else
{
contr='n';
goto movecheck;
}
}
}
}
}
}
}
} //finally, the snake moves
bool checkFood(char s[][22],int fx,int fy) //function for checking if snake has eaten the food
{
int x,y,c=0;
for(x=1;x<31;x++)
{
for(y=1;y<21;y++)
{
if(s[x][y]=='o' && x==fx && y==fy)
{
c=1;
}
}
}
if(c==1) return true;
else return false;
}

void spawnFood(char s[][22],int & fx,int & fy) //function for spawning new food
{
//food spawning
int i,j;
fx=(rand()%30)+1; //generates random value
fy=(rand()%20)+1;
for(j=1;j<31;j++)
{
for(i=1;i<21;i++)
{
if(s[j]!='*' && s[j]!='o') //checks if there is something in generated value square
{
s[fx][fy]='+';
return;
}
else //if there is something, generates again, and checks
{
fx=(rand()%30)+1;
fy=(rand()%20)+1;
i=1;
j=1;
}
}
}
}

bool gameover(char s[][22],int temp[][22]) //checking if snake has hit its tail or borders,
{
int x,y,c=0;

for(x=0;x<32;x++)
{
for(y=0;y<22;y++)
{
if((x==0 || x==31 || y==0 || y==21) && s[x][y]=='o')
{
c=1;
}
if(chek[x][y]==1 && s[x][y]=='o')
{
c=1;
}
}
}
if(c==1) return true; //if yes, game ends
if(c==0) return false;
}

void endgame(int score,int highscore) //just some screens for certain actions
{
cout<<""<<endl<<endl;
cout<<" ------------------------------------------------------------------------- "<<endl;
cout<<"| ***** * * * ****** **** * ****** **** |"<<endl;
cout<<"| * * * * * * * * * * * * * * * |"<<endl;
cout<<"| * **** * * * * * * ***** * * * * **** **** |"<<endl;
cout<<"| * * * ******* * * * * * * * * * * * |"<<endl;
cout<<"| ***** * * * * ****** **** * ***** * * |"<<endl;
cout<<" ------------------------------------------------------------------------- "<<endl;
cout<<""<<endl<<endl;
cout<<" Y O U R S C O R E : "<<score<<endl<<endl;
cout<<" H I G H S C O R E : "<<highscore<<endl;
cout<<""<<endl<<endl;
}

void menu()
{
cout<<""<<endl;
cout<<" ----------------------------------------------- "<<endl;
cout<<"| | "<<endl;
cout<<"| ** * * *** **** ***** | "<<endl;
cout<<"| * * * * * * *** ** * * ** | "<<endl;
cout<<"| ** * * * * * *** *** *** | "<<endl;
cout<<"| | "<<endl;
cout<<"| | "<<endl;
cout<<"| | "<<endl;
cout<<" ----------------------------------------------- "<<endl;
cout<<""<<endl<<endl;
cout<<" M E N U: "<<endl<<endl;
cout<<" 1: Start Game "<<endl<<endl;
cout<<" 2: Options "<<endl<<endl;
cout<<" 3: Exit "<<endl<<endl;
}

void help()
{
char sel;
system("cls");
while(true)
{
cout<<" ----------------------------------------------"<<endl;
cout<<"| |"<<endl;
cout<<"| 8 - up |"<<endl;
cout<<"| |"<<endl;
cout<<"| 4 - left 6 - right |"<<endl;
cout<<"| |"<<endl;
cout<<"| 2 - down |"<<endl;
cout<<"| |"<<endl;
cout<<"| 0 - Pause |"<<endl;
cout<<"| |"<<endl;
cout<<" ---------------------------------------------- "<<endl<<endl<<endl;
cout<<"Go back? [y/n] ";
cin>>sel;
if(sel=='y') return;
else system("cls");
}
}

void credits()
{
char sel;
system("cls");
while(true)
{
cout<<""<<endl<<endl;
cout<<" Programmers:"<<endl<<endl;
cout<<" Al "<<endl<<endl;
cout<<" Zac"<<endl<<endl;
cout<<" Cent"<<endl<<endl;
cout<<" Testers: Whoever is playing this is the tester"<<endl<<endl<<endl<<endl;
cout<<"Go back? [y/n] ";
cin>>sel;
if(sel=='y') return;
else system("cls");
}
}

void options()
{
char sel;
system("cls");
while(true)
{
system("cls");
cout<<""<<endl<<endl;
cout<<" O P T I O N S: "<<endl<<endl;
cout<<" 1: Choose Difficulty "<<endl<<endl;
cout<<" 2: Controls "<<endl<<endl;
cout<<" 3: Credits "<<endl<<endl;
cout<<" 4: Go Back "<<endl<<endl;
cin>>sel;
if(sel=='1') difficulty();
else if(sel=='2') help();
else if(sel=='3') credits();
else if(sel=='4') return;
else system("cls");
}
}

void difficulty() //function for setting difficulty (how fast snake moves
{
char sel;
system("cls");
while(true)
{
cout<<""<<endl<<endl;
cout<<" C U R R E N T D I F F I C U L T Y:"<<endl<<endl;
if(diff==1) cout<<" E A S Y"<<endl<<endl;
else if(diff==0.5) cout<<" N O R M A L"<<endl<<endl;
else if(diff==0.2) cout<<" H A R D"<<endl<<endl;
else if(diff==0.1) cout<<" S U P E R H A R D"<<endl<<endl;
else if(diff==0.03) cout<<" I M P O S S I B L E"<<endl<<endl;
cout<<" C H O O S E D I F F I C U L T Y :"<<endl<<endl;
cout<<" 1: Easy "<<endl<<endl;
cout<<" 2: Normal "<<endl<<endl;
cout<<" 3: Hard "<<endl<<endl;
cout<<" 4: Super Hard "<<endl<<endl;
cout<<" 5: Impossible "<<endl<<endl<<endl<<endl;
cout<<" 6: Go Back "<<endl<<endl;
cin>>sel;
if(sel=='1') //there are 5 ready difficulties
{
diff=1;
system("cls");
}
else if(sel=='2')
{
diff=0.5;
system("cls");
}
else if(sel=='3')
{
diff=0.2;
system("cls");
}
else if(sel=='4')
{
diff=0.1;
system("cls");
}
else if(sel=='5')
{
diff=0.03;
system("cls");
}
else if(sel=='6') return;
else system("cls");
}
}

void pause() //pauses game
{
char c;
cout<<""<<endl<<endl;
cout<<"Game paused. Do you want to continue? [y/n] ";
ooo:
cin>>c;
if(c=='y') return;
else goto ooo;
}