Problem with Snake game ..snake movement ..help plzzzz

Discussion in 'C' started by learner guy, Nov 6, 2011.

  1. learner guy

    learner guy New Member

    Joined:
    Aug 2, 2011
    Messages:
    8
    Likes Received:
    0
    Trophy Points:
    0
    hi can anyone help me in making this code work ..i will be very grateful to him/her



    Code:
    #include <iostream>
#include <stdio.h>
#include <conio.h>
#include <windows.h>
using namespace std;

#define BLACK 0
#define BLUE 1
#define GREEN 2
#define CYAN 3
#define RED 4
#define MAGENTA 5
#define BROWN 6
#define LIGHTGREY 7
#define DARKGREY 8
#define LIGHTBLUE 9
#define LIGHTGREEN 10
#define LIGHTCYAN 11
#define LIGHTRED 12
#define LIGHTMAGENTA 13
#define YELLOW 14
#define WHITE 15
#define BLINK 128

void printxy(int xpos, int ypos, int col, char ch)
{
 COORD scrn;
 HANDLE hOuput = GetStdHandle(STD_OUTPUT_HANDLE);
 scrn.X = xpos; scrn.Y = ypos;
 SetConsoleCursorPosition(hOuput,scrn);
 HANDLE  screen=GetStdHandle(STD_OUTPUT_HANDLE);
 SetConsoleTextAttribute(screen,col);
 DWORD useless;
 WriteConsole(screen,&ch,1,(LPDWORD)&useless,NULL);
 SetConsoleTextAttribute(screen,15);

 SMALL_RECT windowSize = {0, 0, 100, 100};
 SetConsoleWindowInfo(screen, TRUE, &windowSize);
}
//Printing code ends



// Macros
#define LEFT 1
#define RIGHT 2
#define UP 3
#define DOWN 4

int score;

struct snakeData
{
int length;
int headX;
int headY;
int headDir;
int tailX;
int tailY;
int tailDir;
int BendX[1000];
int BendY[1000];
int BendDir[1000];

}snake; //variable of snake structure



void userinput ()// This Function changes the direction of motion of snake according to input.
{
  static int i = 0;
  if ( i > 1000) i = 0; // Makes the bend array a circular queue
  static int j = 0;
  if ( j > 1000) j = 0;
  char input;
  if (_kbhit ())
   {
    input = _getch ();
    
    //Change Respective Return value to our MACRO Direction Code Value 
               
     if (input == 80) input = DOWN;
               
     if (input == 72) input = UP;
               
     if (input == 75) input = LEFT;
               
     if (input == 77) input = RIGHT;

   //Change head direction based on logic
               
     if (input == LEFT && snake.headDir != RIGHT && snake.headDir != LEFT)
        {
          snake.headDir = LEFT; 
          snake.BendX [i] = snake.headX;
          snake.BendY [i] = snake.headX;
          snake.BendDir [i] = LEFT;
          i++;
        } 
     if (input == RIGHT && snake.headDir != LEFT && snake.headDir != RIGHT)
        {
          snake.headDir = RIGHT;
          snake.BendX [i] = snake.headX;
          snake.BendY [i] = snake.headY;
          snake.BendDir [i] = RIGHT;
          i++; 
         }
     if (input == UP && snake.headDir != DOWN && snake.headDir != UP)
        {
          snake.headDir = UP;
          snake.BendX [i] = snake.headX;
          snake.BendY [i] = snake.headY;
          snake.BendDir [i] = UP;
          i++; 
        }
    if (input == DOWN && snake.headDir != UP && snake.headDir != DOWN)
        {
          snake.headDir = DOWN; 
          snake.BendX [i] = snake.headX;
          snake.BendY [i] = snake.headY;
          snake.BendDir [i] = DOWN;
          i++; 
         }

     }
   //Code to change the y direction at respective time
   if (snake.tailX == snake.BendX [j] && snake.tailY == snake.BendY [j])
     {
        snake.tailDir = snake.BendDir [j];
        j++;
     }
       
}






void movesnake () //Moves The Snake Across the Screen
               
{
 //Move the Head
 if (snake.headDir == LEFT)
  {
   snake.headX --; 
  }
 if (snake.headDir == RIGHT) 
  {
   snake.headX ++; 
  }
 if (snake.headDir == UP) 
  {
   snake.headY --;
  }
 if (snake.headDir == DOWN) 
  {
   snake.headY ++; 
  } 
 printxy(snake.headX, snake.headY,YELLOW,'@');
 //Move the Tail
  printxy(snake.tailY, snake.tailY,YELLOW,'@');
 if (snake.tailDir == LEFT)
  {
    snake.tailX --; 
  }
 if (snake.tailDir == RIGHT) 
  {
   snake.tailX ++; 
  }
 if (snake.tailDir == UP) 
  {
    snake.tailY --;
  }
 if (snake.tailDir == DOWN) 
  {
    snake.tailY ++; 
  } 
   
}



void gameengine ()//Soul of our game.
{
 while (1) 
  {
   Sleep(10); 
  }
}





void initscreen(){


for (int i=snake.length;i>0;i--){

printxy(snake.headX-i,snake.headY,YELLOW,'@');
}
}



void initGame(){

int i;
snake.length=10;
snake.headX =20;
snake.headY =20;
snake.headDir = RIGHT;
snake.tailX = snake.headX - snake.length;
snake.tailY = snake.headY;
snake.tailDir = RIGHT;

for (int i = 0; i <1000;i++) // There is no bend initally
      {
          snake.BendX[i] = 0;
           snake.BendY[i] = 0; 
      }
}






int main()
{

snakeData();
initGame();
initscreen();




gameengine ();
userinput ();
movesnake () ;




return 0;

}
     
    learner guy, Nov 6, 2011
    SHARE #1
  2. sandip_sule

    sandip_sule New Member

    Joined:
    Oct 6, 2011
    Messages:
    1
    Likes Received:
    0
    Trophy Points:
    0

    ___________________________________________________________________
    Please check the following code, the snake movement has been rectified.
    The snake needs to be moved within the screen area....

    Code:
    #include <iostream>
#include <stdio.h>
#include <conio.h>
#include <windows.h>
#include <fstream>
using namespace std;
#define BLACK 0
#define BLUE 1
#define GREEN 2
#define CYAN 3
#define RED 4
#define MAGENTA 5
#define BROWN 6
#define LIGHTGREY 7
#define DARKGREY 8
#define LIGHTBLUE 9
#define LIGHTGREEN 10
#define LIGHTCYAN 11
#define LIGHTRED 12
#define LIGHTMAGENTA 13
#define YELLOW 14
#define WHITE 15
#define BLINK 128
// Macros
#define LEFT 1
#define RIGHT 2
#define UP 3
#define DOWN 4
int score;
int LatestBendIndex = 0 ;
int TailBendIndex = 0 ;
struct snakeData
{
int length;
int headX;
int headY;
int headDir;
int tailX;
int tailY;
int tailDir;
int BendX[1000];
int BendY[1000];
int BendDir[1000];
}snake; //variable of snake structure
void printxy(int xpos, int ypos, int col, char ch)
{
COORD scrn;
HANDLE hOuput = GetStdHandle(STD_OUTPUT_HANDLE);
scrn.X = xpos; scrn.Y = ypos;
SetConsoleCursorPosition(hOuput,scrn);
HANDLE screen=GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleTextAttribute(screen,col);
DWORD useless;
WriteConsole(screen,&ch,1,(LPDWORD)&useless,NULL);
SetConsoleTextAttribute(screen,15);
SMALL_RECT windowSize = {0, 0, 100, 100};
SetConsoleWindowInfo(screen, TRUE, &windowSize);
}
//Printing code ends
 
int userinput ()// This Function changes the direction of motion of snake according to input.
{
int retval = 0 ;

//if ( i > 1000) i = 0; // Makes the bend array a circular queue

//static int j = 0;
//if ( j > 1000) j = 0;

char input;

if (_kbhit())
{
retval = 1 ;
input = _getch();
if ( (input == 'q') || (input == 'Q') ) return -1; 
//Change Respective Return value to our MACRO Direction Code Value
if (input == 80) input = DOWN; 
if (input == 72) input = UP; 
if (input == 75) input = LEFT; 
if (input == 77) input = RIGHT;
//Change head direction based on logic

if ( (input == LEFT) && (snake.headDir != RIGHT) && (snake.headDir != LEFT))
{
snake.headDir = LEFT; 
snake.BendX [LatestBendIndex] = snake.headX;
snake.BendY [LatestBendIndex] = snake.headY;
snake.BendDir [LatestBendIndex] = LEFT;

LatestBendIndex++;
} 
if ((input == RIGHT) && (snake.headDir != LEFT) && (snake.headDir != RIGHT))
{
snake.headDir = RIGHT;
snake.BendX [LatestBendIndex] = snake.headX;
snake.BendY [LatestBendIndex] = snake.headY;
snake.BendDir [LatestBendIndex] = RIGHT;

LatestBendIndex++; 
}
if ((input == UP) && (snake.headDir != DOWN) && (snake.headDir != UP))
{
snake.headDir = UP;
snake.BendX [LatestBendIndex] = snake.headX;
snake.BendY [LatestBendIndex] = snake.headY;
snake.BendDir [LatestBendIndex] = UP;
LatestBendIndex++; 
}
if ((input == DOWN) && (snake.headDir != UP) && (snake.headDir != DOWN))
{
snake.headDir = DOWN; 
snake.BendX [LatestBendIndex] = snake.headX;
snake.BendY [LatestBendIndex] = snake.headY;
snake.BendDir [LatestBendIndex] = DOWN;

LatestBendIndex++; 
}
}
//Code to change the y direction at respective time
if ((snake.tailX == snake.BendX [TailBendIndex]) && (snake.tailY == snake.BendY [TailBendIndex]))
{ 
snake.tailDir = snake.BendDir [TailBendIndex];

//Reset the Bend values
snake.BendX [TailBendIndex] = 0;
snake.BendY [TailBendIndex] = 0;
snake.BendDir [TailBendIndex] = 0;
//Point to the next bend that the tail is going to encounter
TailBendIndex++;
}
return retval ;

}
void movesnake () //Moves The Snake Across the Screen 
{
//Move the Head
if (snake.headDir == LEFT)
{
snake.headX --; 
}
if (snake.headDir == RIGHT) 
{
snake.headX ++; 
}
if (snake.headDir == UP) 
{
snake.headY --;
}
if (snake.headDir == DOWN) 
{
snake.headY ++; 
} 
printxy(snake.headX, snake.headY,YELLOW,'@');
printxy(snake.tailX, snake.tailY,YELLOW,' ');
if (snake.tailDir == LEFT)
{
snake.tailX --; 
}
if (snake.tailDir == RIGHT) 
{
snake.tailX ++; 
}
if (snake.tailDir == UP) 
{
snake.tailY --;
}
if (snake.tailDir == DOWN) 
{
snake.tailY ++; 
}
//Move the Tail
printxy(snake.tailX, snake.tailY,YELLOW,' ');
}
 
 
void gameengine ()//Soul of our game.
{
bool flag = 1;
while (flag) 
{
Sleep(100);
flag = 0; 
}
}
void initscreen()
{
for (int i=snake.length;i>0;i--)
{
printxy(snake.headX-i,snake.headY,YELLOW,'@');
}
}
void initGame()
{
int i;
snake.length=10;
snake.headX =20;
snake.headY =20;
snake.headDir = RIGHT;
snake.tailX = snake.headX - snake.length;
snake.tailY = snake.headY;
snake.tailDir = RIGHT;
for (int i = 0; i <1000;i++) // There is no bend initally
{
snake.BendX[i] = 0;
snake.BendY[i] = 0;
snake.BendDir[i] = 0; 
}
}
int main()
{
int ret ;
snakeData();
initGame();
initscreen();
while (true) 
{
gameengine ();
ret = userinput ();

movesnake () ;
if ( -1 == ret ) //QUIT the loop as the user has entered the character 'Q' 
break;
}
return 0;
}
    Hope that it will solve your issue.

    Regards
    Sandip Sule
     
    Last edited by a moderator: Nov 14, 2011
    sandip_sule, Nov 13, 2011
    SHARE #2

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Accept Learn More...
    Dismiss Notice