Published by
Aug 23, 2013 (last update: Jan 21, 2014)

Snake Cpp [Console]

Score: 3.5/5 (159 votes)
*****
Hey,

I've decided to share with you my snake game ,I hope you will like it.
I've added some comments to the game as well,if you want to understand how it works.

Foxefde


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#include <vector>
#include <iostream>
#include <conio.h> //By Foxefde
#include <windows.h>
#include <ctime>

class Snake
{
private:
    int x,z,Dollars,y,Bonus,time,tail;
    // x - snake head position
    // z = for random number(pineapple generation)
    // y = tail coordinates time = time tail = snakelenght - 1
    char *map; //Map of game
    bool L,R,D,U,A; //L = LEFT R = RIGHT D = DOWN U = UP A = JUST A BOOL
    std::vector <int> past; //Special vector for deleting old parts

public:
    Snake()
    {
        map = new char [2000];
        L = 0;
        R = 1; //bool 1 = true bool 0 = false
        D = 0;
        U = 0;
        A = 0;
        tail = 1; //Actually it will not have a tail until it eats first apple
        x = 1000; //Position of snake at the beggining
        Dollars = 0; //Money
        Bonus = 0;
        time = 40; //For bonus apples
        z = 1; //So first apple generation will not be bugged --
	}

    ~Snake()
    {
        delete [] map;
    }

    void Graphics (); //Drawing game
    void GameLogic(); //Does it need comment?
    void KEYBOARD (); //Checking for input
    void Pineapple(); //Generating new apple
    int GameOver (); //Game over ?.
    void Start(); //Start -_-
    friend void clearscreen(); //It's actually not like system("cls"),but works almost same
    friend void sp();//Choose color function
    friend void s(); //Forget choose color choice
};
////////////////////////////////////////////////////////////////////////////////// Windows
void clearscreen()
{
    HANDLE hOut;
    COORD Position;

    hOut = GetStdHandle(STD_OUTPUT_HANDLE);

    Position.X = 0;
    Position.Y = 0;
    SetConsoleCursorPosition(hOut, Position);
}

void sp(int choosecolor)
{
    SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), choosecolor); //FUNCTION OF COLOR
}
void s()
{
    SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), 7);
    //FUNCTION TO ..EHM FORGET COLOR,not sure how to say I know: Stop using color
}
////////////////////////////////////////////////////////////////////////////////// ^ Windows
void Snake::Start()
{
    for(int p = 0;p < 2000;p++)//////////////////////////////////////// Making array empty
    {
        map[p] = ' ';
    }

    map[ x ] = char(219); //Let's make head - block
    Pineapple(); //Let's generate a pineapple
    Graphics(); //GOOOOOOO
}
//////////////////////////////////////////////////////////////////////////////////////////
int Snake::GameOver()
{
    Sleep(2500);
    system("cls");
    std::cout <<     std::endl << "Oops...You earned " << Dollars + Bonus << " Dollars...";
    //Better luck next time.
    Sleep(1800);
    return 0;
}
void Snake::Graphics()
{
    sp(697); //CHoosing color
    std::cout << Dollars + Bonus << " Dollars By Foxefde 2013 ";
    std::cout << "\n";
    s();
    for(int u = 0;u < 50;u++) //Top border
    {
        sp(750);
        std::cout << char(219);
        s();
    }

	std::cout <<     std::endl;
/***********************************************************************/
    for(int x1 = 0;x1 < 2000 ; x1++) //DRAWING BOARD!~
    {
        if(x1 % 50 == 0 && x1 != 0)
        {
            std::cout <<     std::endl;
        }
        if(x1 % 50 == 0 || (x1-(x1 / 50)) % 49 == 0)
		{
            map[x1] = char(219);
            sp(750);
            std::cout << map[x1];
            s();
		}
	else if(map[x1]!=char(219) && map[x1]!=map[z])
    {
        std::cout << map[x1];
    }
    else if(x1 == z)
    {
        sp(10);
        std::cout << map[x1];
        s();
    }
    else
    {
        sp(750);
        std::cout << map[x1];
        s();
	}

    }

	std::cout <<     std::endl; //New line
/***********************************************************************/
    for(int u = 0;u < 50;u++) //Bottom border
    {
        sp(750);
        std::cout << char(219);
        s();
    }
    if(U == 1 || D == 1)
	{ //WITHOUT IT ,GOING UP/DOWN IS MUCH FASTER THAN < >
        Sleep(19);
    }
    if(map[z] == char(5)) //If apple is bonus ,then start decreasing time to get it!
    {
        time--;
        if(time == 0) //If you were too slow ,you lose a dollar and a new apple is generated
		{
            Dollars++;
            time = 40;
            Pineapple();
        }
    }

    clearscreen();
    GameLogic();
}

void Snake::Pineapple()
{
    map[z] = ' ';
    if(Dollars % 8 != 0 || Dollars == 0)
    //Bonus apple - every 8 normal apples eaten ,so we need to check - generate an apple or a bonus apple
    {
        while(map[z] != ' ' && z % 50 != 0 && (z-(z/50)) % 49!= 0);
    //Keep generating new coordinates of pineapple until that place is empty
        {
            z = rand()%2000 + 1;
		}

	    map[z] = char(229);
        //(z(z/50)) % 49 != 0 that means ,if z isn't 49+50n (49,99,149,199...)
    } //Logic ftw ,yeh?:D

    else //BONUS APPLE
    {
        while(map[z] != ' ' && z % 50 != 0 && (z-(z/50)) % 49 != 0);
        //Keep generating new coordinates of pineapple until that place is empty
        {
            z = rand()%2000 + 1;
        }
        map[z] = char(5);
    }

}

void Snake::KEYBOARD()
{
/***********************************************************************************************/
if(_kbhit()) //If player clicks something

{
    char key;
    key = _getch(); //Now this click is key
    switch( key )
    {
        case 'd':
            //cases below,nothing special ,you should understand that easily
            //,but let me give a simple explanation of first case:
        {
            if (L == 0) //So if a player has clicked 'd' ,then.1:We check if snake is not
            //going left,because how can she turn right,if she's going left?Teleporting?..
            {
                L = 0, U = 0, D = 0, //Left = false UP = false Down = false
                R = 1; //Right = true !
			}
            break; //We break it,end of the case.Identic with other cases..
        }

        case 'w':
        {
            if (D == 0)
            {
                L = 0, D = 0, R = 0,
                U = 1;
            }
        break;
        }

        case 'a':
        {
            if (R == 0)
            {
                D = 0, U = 0, R = 0,
                L = 1;
			}
        break;
        }

        case 's':
        {
            if (U == 0)
            {
                L = 0, U = 0, R = 0,
                D = 1;
            }
        break;
        }

    }

}
}

/**************************************************************************/
void Snake::GameLogic()
{
    past.insert(past.begin(),x); //Inserting past x position to vector
    KEYBOARD();
    if(R == 1) //If snake is going right
    {
        x++;
    }
    else if(L == 1) //If snake is going left
    {
        x--;
    }
    else if(U == 1) //If snake is going up
    {
        x-= 50;
    }
    else //If snake is going down(only case left)
    {
        x+= 50;
    }
    if(map[ x ] == char(219) || x % 50 == 0 || x > 2000 || x < 0 || (x-(x / 50)) % 49 == 0)
        //If it hits herself or border...
    {
        GameOver();
        return;
    }
    if(map[x] == char(229))
    //If it eats an pineapple also A becomes true,that means the
    //very end of the snake(tail) will not be deleted ( line 276 ) for 1 frame
    {
        A = true;
        tail++; //It eats a big apple ,so snake becomes heavier
        Pineapple(); //Let's generate new apple!
        Dollars++; //Apple had some dollars in it,congrulations!
	}
    else if (map[x] == char(5)) //Same,but maybe it has just eaten bonus apple?
    {
        A = true;
        tail++;
        Pineapple();
        Bonus+=time;
    }

    map[x] = char(219);
    //When it touches apple - head becomes an apple,so we need to change it.
/**********/
    if(A == false) //If snake has just eaten an apple
    {
        y = past[past.size() - tail]; //D E L E T I N G past tail from the map!
        map[y] = ' ';
    }

    A = false; //So the next time line 270 will work again,if apple is no eaten ///
    if(tail!=1)
    {
        for(int u = past.size() - 2;u > 0;u--)
		{
            past[u+1] = past[u];
        } //Try your best to understand what's happening here,
        //let's say this is an exercise for you from Foxefde
    past.erase(past.end()-tail);
    }
    else
    {
        past.erase(past.begin()); //I could do it without erases,
    } //
    Graphics();
}
int main()
{
    srand((unsigned)time(0)); //So random numbers will be always random.
    Snake SNAKE; //creating class m
    SNAKE.Start(); //Starting main function/
}
//By Foxefde 2013 www.youtube.com/watch?v=DBOzkCbdoqQ
//Also check this www.youtube.com/watch?v=JkEHImooH74
//Skype Mantasxxl3