/* Fonction qui ajoute une position au serpent */
int addPositionSnake(Damier *map, Snake *snake, Position pos, Sound sound)
{
if (snake->tete-1 >= MAXSNAKE)
{
perror("Plus de place !");
return ERR_SIZE_SNAKE;
}
if (!testPosSnake(pos))
{
return ERR_POSITION;
}
if (!isProie(*map, pos))
{
snake->posSnake[snake->queue] = initCaseSnake();
snake->posSnake[++snake->queue].etat = QUEUE;
}
else
{
snake->posSnake[snake->queue + 1].etat = CORPS;
snake->posSnake[snake->queue].etat = QUEUE;
playSound(sound, CROC_SOUND);
}
if (isSnake(*map, pos))
{
return END_GAME;
}
snake->posSnake[snake->tete].etat = CORPS;
snake->posSnake[++snake->tete].position = pos;
snake->posSnake[snake->tete].etat = TETE;
return 0;
}
void Snake2Sequence::next(){
if (stuck > 0) {
if (stuck < 10)
Translate(0, 0, -1);
stuck--;
if (stuck == 0)
finished = true;
return;
}
// Work out if we need to turn because either
// - we are about to go out of the cube
// - we are about to eat ourselves
// - we just randomly fancy turning
short attempts = 0;
while (true){
int next_x = snake_x[0] + delta_x;
int next_y = snake_y[0] + delta_y;
int next_z = snake_z[0] + delta_z;
if (next_x < 0 || next_x > 7 || next_y < 0 || next_y > 7 || next_z < 0 || next_z > 7
|| isSnake(next_x, next_y, next_z)
|| makeRandomTurn()){
delta_x = 0;
delta_y = 0;
delta_z = 0;
// Pick a new random direction
int r = rand() % 6;
switch(r){
case 0:
delta_x = -1;
break;
case 1:
delta_x = 1;
break;
case 2:
delta_y = -1;
break;
case 3:
default:
delta_y = 1;
break;
case 4:
delta_z = -1;
break;
case 5:
delta_z = 1;
break;
}
}
else {
break;
}
attempts++;
if (attempts == 90){
stuck = 40;
delay = 20;
return;
}
}
// Move snake
shuffleSnake();
// Set new head
snake_x[0] = snake_x[1] + delta_x;
snake_y[0] = snake_y[1] + delta_y;
snake_z[0] = snake_z[1] + delta_z;
// See if we've eaten anything
short food = isFood(snake_x[0], snake_y[0], snake_z[0]);
if (food >= 0){
// Mmm, food
// grow
growBy += 3;
while (snakeLen + growBy > MAX_SNAKE_LEN) { growBy--; }
// speed up
delay--;
if (delay < 1) delay = 1;
// Replace with more food
food_x[food] = rand() % 8;
food_y[food] = rand() % 8;
food_z[food] = rand() % 8;
}
// Draw new snake
drawSnakeInCube();
drawFoodInCube();
}