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This commit is contained in:
Filip Chochol 2026-03-31 14:31:00 +02:00
parent 48c91660f1
commit b2c01620ed
1 changed files with 30 additions and 41 deletions
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71
du4/snake.c
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@ -2,71 +2,60 @@
#include <stdlib.h> #include <stdlib.h>
struct snake* add_snake(struct snake* snake, int x, int y) { struct snake* add_snake(struct snake* snake, int x, int y) {
struct snake* nova_hlava = malloc(sizeof(struct snake)); struct snake* nova_cast = calloc(1, sizeof(struct snake));
nova_hlava->x = x; nova_cast->x = x;
nova_hlava->y = y; nova_cast->y = y;
nova_hlava->next = snake; nova_cast->next = snake;
return nova_hlava;
}
struct snake* remove_snake(struct snake* snake) {
if (snake == NULL) return NULL;
if (snake->next == NULL) {
free(snake);
return NULL;
}
struct snake* aktualny = snake;
while (aktualny->next->next != NULL) {
aktualny = aktualny->next;
}
free(aktualny->next);
aktualny->next = NULL;
return snake; return snake;
} }
void free_snake(struct snake* sn) { struct snake* remove_snake(struct snake* hlava) {
while (sn != NULL) { if (hlava == NULL) return NULL;
struct snake* dalsi = sn->next; if (hlava->next == NULL) {
free(sn); return NULL;
sn = dalsi;
} }
hlava->next = remove_snake(hlava->next);
return hlava;
} }
int is_snake(struct snake* snake, int x, int y) { int is_snake(struct snake* snake, int x, int y) {
struct snake* aktualny = snake; for (struct snake* this = snake; this != NULL; this = this->next) {
while (aktualny != NULL) { if (this->x = x && this->y == y) return 1;
if (aktualny->x == x && aktualny->y == y) return 1;
aktualny = aktualny->next;
} }
return 0; return 0;
} }
void free_snake(struct snake* sn) {
if (sn == NULL) return;
free_snake(sn->next);
}
int step_state(struct state* st) { int step_state(struct state* st) {
int nx = (st->snake->x + st->sx); int nova_x = st->snake->x + st->sx;
int ny = (st->snake->y + st->sy); int nova_y = st->snake->y + st->sy;
if (nx < 0 || nx >= st->width || if (nova_x < 0 || nova_x >= st->width || nova_y < 0 || nova_y >= st->height)
ny < 0 || ny >= st->height) {
return END_WALL; return END_WALL;
}
if (is_snake(st->snake, nx, ny)) { if (is_snake(st->snake, nova_x, nova_y))
return END_SNAKE; return END_SNAKE;
}
for (int i = 0; i < FOOD_COUNT; i++) { for (int i = 0; i < FOOD_COUNT; i++) {
if (st->foodx[i] == nx && st->foody[i] == ny) { if (st->foodx[i] == nova_x && st->foody[i] == nova_y) {
st->snake = add_snake(st->snake, nx, ny);
st->foodx[i] = -1; st->foodx[i] = -1;
st->foody[i] = -1; st->foody[i] = -1;
st->snake = add_snake(st->snake, nova_x, nova_y);
int zostatok = 0;
for (int j = 0; j < FOOD_COUNT; j++) { for (int j = 0; j < FOOD_COUNT; j++) {
if (st->foodx[j] >= 0) return END_CONTINUE; if (st->foodx[j] >= 0) zostatok = 1;
} }
return END_FOOD; if (!zostatok) return END_FOOD;
return END_CONTINUE;
} }
} }
st->snake = add_snake(st->snake, nx, ny); st->snake = add_snake(st->snake, nova_x, nova_y);
st->snake = remove_snake(st->snake); remove_snake(st->snake);
return END_CONTINUE; return END_CONTINUE;
} }