int moveSnake() {
if(headPositionX==foodPositionX && headPositionY==foodPositionY)
{
bodyLength++;
foodEaten = 0;
}
else {
/*Removing the tail ie. the last block*/
gotoxy(bodyPositionX[bodyLength], bodyPositionY[bodyLength]);
putchar(' ');
}
/*Moving the head forward and then other blocks follow*/
int i;
for(i=bodyLength;i>0;i--) {
if(i == 1) {
bodyPositionX[i] = headPositionX;
bodyPositionY[i] = headPositionY;
gotoxy(bodyPositionX[i], bodyPositionY[i]);
putchar(snakeBody);
}
else {
bodyPositionX[i] = bodyPositionX[i-1];
bodyPositionY[i] = bodyPositionY[i-1];
gotoxy(bodyPositionX[i], bodyPositionY[i]);
putchar(snakeBody);
}
}
if(direction == 'd' || direction == 'D')
moveSnakeRight();
else if(direction == 'a' || direction == 'A')
moveSnakeLeft();
else if(direction == 's' || direction == 'S')
moveSnakeDown();
else if(direction == 'w' || direction == 'W')
moveSnakeUp();
/*Suicide case*/
for(i=0; i<=bodyLength; i++) {
if(headPositionX==bodyPositionX[i] && headPositionY==bodyPositionY[i]) {
/*code to end the game*/
printf("\t\t\tGame Over\n\n\n\n\n\n");
getch();
exit(1);
}
}
/*Speed of snake ie. sleepe time in ms time unit.*/
usleep(SLEEP_TIME);
fflush(stdout);
return 0;
}
void Game()
{
while (true)
{
drawBoard();
removeSnake();
if (GetAsyncKeyState(VK_LEFT) && !moveSnakeRight_b)
{
if (!moveSnakeLeft_b)
{
moveSnakeLeft();
drawSnake();
checkSnakeCollision();
}
}
else if (GetAsyncKeyState(VK_RIGHT) && !moveSnakeLeft_b)
{
if (!moveSnakeRight_b)
{
moveSnakeRight();
checkSnakeCollision();
}
}
else if (GetAsyncKeyState(VK_UP) && !moveSnakeDown_b)
{
if (!moveSnakeUp_b)
{
moveSnakeUp();
checkSnakeCollision();
}
}
else if (GetAsyncKeyState(VK_DOWN) && !moveSnakeUp_b)
{
if (!moveSnakeDown_b)
{
moveSnakeDown();
checkSnakeCollision();
}
} // Automatic moves
else if (moveSnakeDown_b)
{
moveSnakeDown();
checkSnakeCollision();
}
else if (moveSnakeUp_b)
{
moveSnakeUp();
checkSnakeCollision();
}
else if (moveSnakeRight_b)
{
moveSnakeRight();
checkSnakeCollision();
}
else if (moveSnakeLeft_b)
{
moveSnakeLeft();
checkSnakeCollision();
}
drawSnake();
Sleep(100);
}
}
