43 lines
923 B
C
43 lines
923 B
C
#include <stdlib.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 = malloc(sizeof(struct snake));
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if (!new_head) return NULL;
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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 || !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->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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while (snake) {
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if (snake->x == x && snake->y == y)
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return 1;
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snake = snake->next;
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}
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return 0;
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}
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void free_snake(struct snake* sn) {
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while (sn) {
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struct snake* next = sn->next;
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free(sn);
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sn = next;
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}
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} |