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This commit is contained in:
Macko 2024-04-10 23:35:50 +02:00
parent e48d2bf689
commit 52d7eeffe3
1 changed files with 9 additions and 25 deletions
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34
cv9/snake.c
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@ -1,6 +1,7 @@
#include "snake.h" #include "snake.h"
#include <stdlib.h> #include <stdlib.h>
// Pridá novú časť hada na danú pozíciu a vráti novú hlavu hada
struct snake* add_snake(struct snake* snake, int x, int y) { struct snake* add_snake(struct snake* snake, int x, int y) {
struct snake* new_head = (struct snake*) malloc(sizeof(struct snake)); struct snake* new_head = (struct snake*) malloc(sizeof(struct snake));
new_head->x = x; new_head->x = x;
@ -9,29 +10,7 @@ struct snake* add_snake(struct snake* snake, int x, int y) {
return new_head; return new_head;
} }
/*struct snake* remove_snake(struct snake* snake) { // Odstráni poslednú časť hada a vráti novú hlavu hada
struct snake* temp = snake;
while(temp->next->next != NULL) {
temp = temp->next;
}
free(temp->next);
temp->next = NULL;
return snake;
}*/
/*struct snake* remove_snake(struct snake* snake) {
if (snake == NULL) {
return NULL;
}
struct snake* temp = snake;
while(temp->next->next != NULL) {
temp = temp->next;
}
free(temp->next);
temp->next = NULL;
return snake;
}*/
struct snake* remove_snake(struct snake* snake) { struct snake* remove_snake(struct snake* snake) {
if (snake == NULL || snake->next == NULL) { if (snake == NULL || snake->next == NULL) {
return NULL; return NULL;
@ -45,8 +24,7 @@ struct snake* remove_snake(struct snake* snake) {
return snake; return snake;
} }
// Zistí, či sú dané súradnice súčasťou hada
int is_snake(struct snake* snake, int x, int y) { int is_snake(struct snake* snake, int x, int y) {
while(snake != NULL) { while(snake != NULL) {
if(snake->x == x && snake->y == y) { if(snake->x == x && snake->y == y) {
@ -57,6 +35,7 @@ int is_snake(struct snake* snake, int x, int y) {
return 0; return 0;
} }
// Uvoľní pamäť všetkých častí hada
void free_snake(struct snake* snake) { void free_snake(struct snake* snake) {
struct snake* temp; struct snake* temp;
while(snake != NULL) { while(snake != NULL) {
@ -66,18 +45,22 @@ void free_snake(struct snake* snake) {
} }
} }
// Zmení stav hry podľa pravidiel hry
int step_state(struct state* state) { int step_state(struct state* state) {
int new_x = state->snake->x + state->sx; int new_x = state->snake->x + state->sx;
int new_y = state->snake->y + state->sy; int new_y = state->snake->y + state->sy;
// Ak je nová pozícia mimo hracej plochy, vráti END_WALL
if(new_x < 0 || new_x >= state->width || new_y < 0 || new_y >= state->height) { if(new_x < 0 || new_x >= state->width || new_y < 0 || new_y >= state->height) {
return END_WALL; return END_WALL;
} }
// Ak je nová pozícia na hadovi, vráti END_SNAKE
if(is_snake(state->snake, new_x, new_y)) { if(is_snake(state->snake, new_x, new_y)) {
return END_SNAKE; return END_SNAKE;
} }
// Ak je nová pozícia na jedle, označí jedlo ako zjedené a pridá novú časť hada
for(int i = 0; i < FOOD_COUNT; i++) { for(int i = 0; i < FOOD_COUNT; i++) {
if(state->foodx[i] == new_x && state->foody[i] == new_y) { if(state->foodx[i] == new_x && state->foody[i] == new_y) {
state->foodx[i] = -1; state->foodx[i] = -1;
@ -92,6 +75,7 @@ int step_state(struct state* state) {
} }
} }
// Ak je nová pozícia voľná, pridá novú časť hada a odstráni poslednú časť
state->snake = add_snake(state->snake, new_x, new_y); state->snake = add_snake(state->snake, new_x, new_y);
state->snake = remove_snake(state->snake); state->snake = remove_snake(state->snake);