72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
#include <stdio.h>
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#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 = (struct snake*)malloc(sizeof(struct snake));
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if (new_head == NULL) {
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fprintf(stderr, "Memory allocation failed.\n");
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exit(EXIT_FAILURE);
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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 == NULL) {
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return NULL;
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}
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struct snake* new_head = snake->next;
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free(snake);
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return new_head;
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}
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void test_remove_snake_non_empty() {
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struct snake* tail = calloc(1, sizeof(struct snake));
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tail->x = 3;
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tail->y = 3;
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struct snake* head = calloc(1, sizeof(struct snake));
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head->x = 2;
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head->y = 2;
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head->next = tail;
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struct snake* new_head = remove_snake(head);
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if (new_head != NULL && new_head->x == 2 && new_head->y == 2) {
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printf("Test passed: new head coordinates are correct.\n");
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} else {
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printf("Test failed: new head coordinates are incorrect.\n");
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}
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free(new_head);
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}
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int is_snake(struct snake* snake, int x, int y) {
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while (snake != NULL) {
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if (snake->x == x && snake->y == y) {
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return 1;
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}
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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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struct snake* current = sn;
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while (current != NULL) {
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struct snake* temp = current;
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current = current->next;
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free(temp);
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}
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}
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int step_state(struct state* state) {
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return END_CONTINUE;
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}
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