#include "snake.h"
#include <stdlib.h>

struct snake* add_snake(struct snake* snake, int x, int y) {
    struct snake* head = calloc(1, sizeof(struct snake));
    head->x = x;
    head->y = y;
    head->next = snake;
    return head;
}

struct snake* remove_snake(struct snake* snake) {
struct snake* this = head;
this = this->next;
while (this->next != NULL){
    this = this->next;
}
this = head;
while (this != NULL){
    // Niečo môžme s prvkom this spraviť
    this= this->next;
}
}


void free_snake(struct snake* sn) {
    while (sn != NULL) {
        struct snake* next = sn->next;
        free(sn);
        sn = next;
    }
}

int is_snake(struct snake* snake, int x, int y) {
    while (snake != NULL) {
        if (snake->x == x && snake->y == y) {
            return 1;
        }
        snake = snake->next;
    }
    return 0;
}
int step_state(struct state* st){
	int nx = (st->snake->x + st->sx);
    int ny = (st->snake->y + st->sy);
    return END_CONTINUE;
}