jag

snake_c

public

Small snake game in C

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23 commits2 branches1 tag0 releases565.5 KiB

Commit fd57c5b0ab74

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Jaglekon <58274093+Jaglekon@users.noreply.github.com>2026-03-24 15:32 UTC

1 file changed+69-40
simplified further
snake.c+69−40
@@ -56,6 +56,8 @@ typedef struct snake {
5656 uint16_t length;
5757 } snake;
5858
59+
60+uint8_t update_snake (snake *my_snake, direction shift);
5961 void update_field(snake my_snake, char board[HEIGHT][WIDTH][STRING_LEN],
6062 selected fruit);
6163 selected new_fruit(char board[HEIGHT][WIDTH][STRING_LEN]);
@@ -287,48 +289,27 @@ int main(int argc, char *args[]) {
287289 shift = tmp_direction;
288290 }
289291
290- my_snake.position[0].directions[1] = my_snake.position[0].directions[0];
291- my_snake.position[0].directions[0] = shift;
292-
293- uint16_t i;
294- for (i = my_snake.length; i > 0; i--)
295- my_snake.position[i] = my_snake.position[i - 1];
296-
297- switch (shift) {
298- case UP:
299- my_snake.position[0].coords.y =
300- ((my_snake.position[0].coords.y + HEIGHT - 1) % HEIGHT);
301- break;
302- case DOWN:
303- my_snake.position[0].coords.y = ((my_snake.position[0].coords.y + 1) % HEIGHT);
304- break;
305- case LEFT:
306- my_snake.position[0].coords.x =
307- ((my_snake.position[0].coords.x + WIDTH - 1) % WIDTH);
308- break;
309- case RIGHT:
310- my_snake.position[0].coords.x = ((my_snake.position[0].coords.x + 1) % WIDTH);
311- break;
312- default:
313- goto end_of_program;
314- break;
292+ uint8_t update = update_snake(&my_snake, shift);
293+
294+ switch (update) {
295+ case 0:
296+ printf("\nERROR\n");
297+ goto end_of_program;
298+ break;
299+ case 2:
300+ printf("\nHAHA LOST, LOSER");
301+ goto end_of_program;
302+ break;
303+ default:
304+ break;
315305 }
316306
307+ update_field(my_snake, board, fruit);
308+
309+
317310 uint8_t head_y = my_snake.position[0].coords.y;
318311 uint8_t head_x = my_snake.position[0].coords.x;
319312
320- for (i = 1; i < my_snake.length; i++) {
321- int16_t x = my_snake.position[i].coords.x;
322- int16_t y = my_snake.position[i].coords.y;
323-
324- if (x == head_x && y == head_y) {
325- printf("\n\nHAHA LOST!!!\n\n");
326- goto end_of_program;
327- }
328- }
329-
330- update_field(my_snake, board, fruit);
331-
332313 if (head_y == fruit.y && head_x == fruit.x) {
333314 my_snake.length++;
334315 fruit = new_fruit(board);
@@ -349,6 +330,50 @@ end_of_program:
349330 return 0;
350331 }
351332
333+
334+uint8_t update_snake (snake *my_snake, direction shift) {
335+
336+ my_snake->position[0].directions[1] = my_snake->position[0].directions[0];
337+ my_snake->position[0].directions[0] = shift;
338+
339+ uint16_t i;
340+ for (i = my_snake->length; i > 0; i--)
341+ my_snake->position[i] = my_snake->position[i - 1];
342+
343+ switch (shift) {
344+ case UP:
345+ my_snake->position[0].coords.y =
346+ ((my_snake->position[0].coords.y + HEIGHT - 1) % HEIGHT);
347+ break;
348+ case DOWN:
349+ my_snake->position[0].coords.y = ((my_snake->position[0].coords.y + 1) % HEIGHT);
350+ break;
351+ case LEFT:
352+ my_snake->position[0].coords.x =((my_snake->position[0].coords.x + WIDTH - 1) % WIDTH);
353+ break;
354+ case RIGHT:
355+ my_snake->position[0].coords.x = ((my_snake->position[0].coords.x + 1) % WIDTH);
356+ break;
357+ default:
358+ return 0;
359+ break;
360+ }
361+
362+ uint8_t head_y = my_snake->position[0].coords.y;
363+ uint8_t head_x = my_snake->position[0].coords.x;
364+
365+ for (i = 1; i < my_snake->length; i++) {
366+ int16_t x = my_snake->position[i].coords.x;
367+ int16_t y = my_snake->position[i].coords.y;
368+
369+ if (x == head_x && y == head_y)
370+ return 2;
371+ }
372+
373+
374+ return 1;
375+}
376+
352377 void update_field(snake my_snake, char board[HEIGHT][WIDTH][STRING_LEN],
353378 selected fruit) {
354379
@@ -707,9 +732,13 @@ void draw_pause(struct winsize window_size, uint8_t field_width,
707732 const uint8_t height = 5;
708733 const uint8_t width = 14;
709734
710- const char *pause_menu[] = {"+------------+", "| |",
711- "| PAUSED |", "| |",
712- "+------------+"};
735+ const char *pause_menu[] = {
736+ "+------------+",
737+ "| |",
738+ "| PAUSED |",
739+ "| |",
740+ "+------------+"
741+ };
713742
714743 const uint8_t going_up = (field_height + height) >> 1;
715744 const uint8_t going_right = (field_width - width) >> 1;