49 lines
979 B
C
49 lines
979 B
C
#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include "snake.h"
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struct snake *add_snake(struct snake *snake, int x, int y) {
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struct snake *new_head = (struct snake *)malloc(sizeof(struct snake));
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if (!new_head) {
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return NULL;
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}
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new_head->x = x;
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new_head->y = y;
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new_head->next = snake;
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return new_head;
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}
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struct snake *remove_snake(struct snake *snake) {
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if (!snake) {
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return NULL;
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}
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if (!snake->next) {
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free(snake);
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return NULL;
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}
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struct snake *current = snake;
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while (current->next && current->next->next) {
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current = current->next;
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}
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free(current->next);
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current->next = NULL;
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return snake;
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}
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int is_snake(struct snake *snake, int x, int y) {
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struct snake *current = snake;
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while (current) {
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if (current->x == x && current->y == y) {
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return 1;
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}
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current = current->next;
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}
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return 0;
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}
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