snake_c

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Small snake game in C

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21 commits 2 branches 1 tag 0 releases565.5 KiB

Commit `7dc23a551ade`

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Jaglekon <58274093+Jaglekon@users.noreply.github.com>2026-03-24 14:06 UTC

1 file changed+58-52

made stuff easier

Modified file: snake.c+58 additions−52 deletions@@ -46,8 +46,13 @@ typedef struct selected {
   int16_t y;
 } selected;
 
+typedef struct snake_part {
+  selected coords;
+  direction directions[2];
+} snake_part;
+
 typedef struct snake {
-  selected position[MAX_LENGTH];
+  snake_part position[MAX_LENGTH];
   uint16_t length;
 } snake;
 
@@ -198,14 +203,19 @@ int main(int argc, char *args[]) {
   snake my_snake = {};
   my_snake.length = STARTING_LENGTH;
 
+  direction shift = RIGHT;
+  direction tmp_direction = shift;
+
   {
     uint16_t i;
 
-    my_snake.position[0].y = HEIGHT >> 1;
-    my_snake.position[0].x = WIDTH >> 1;
+    my_snake.position[0].coords.y = HEIGHT >> 1;
+    my_snake.position[0].coords.x = WIDTH >> 1;
+    my_snake.position[0].directions[0] = shift;
+    my_snake.position[0].directions[1] = NO_DIRECTION;
     for (i = 1; i < my_snake.length; i++) {
-      my_snake.position[i].y = -1;
-      my_snake.position[i].x = -1;
+      my_snake.position[i].coords.y = -1;
+      my_snake.position[i].coords.x = -1;
     }
   }
 
@@ -222,8 +232,6 @@ int main(int argc, char *args[]) {
   if ((too_small = draw_board(board, current_size, true, false)))
     paused = true;
 
-  direction shift = RIGHT;
-  direction tmp_direction = shift;
 
   bool run = true;
 
@@ -279,38 +287,39 @@ int main(int argc, char *args[]) {
           shift = tmp_direction;
         }
 
+        my_snake.position[0].directions[1] = my_snake.position[0].directions[0];
+        my_snake.position[0].directions[0] = shift;
+
         uint16_t i;
-        for (i = my_snake.length; i > 0; i--) {
-          my_snake.position[i].y = my_snake.position[i - 1].y;
-          my_snake.position[i].x = my_snake.position[i - 1].x;
-        }
+        for (i = my_snake.length; i > 0; i--)
+          my_snake.position[i] = my_snake.position[i - 1];
 
         switch (shift) {
         case UP:
-          my_snake.position[0].y =
-              ((my_snake.position[0].y + HEIGHT - 1) % HEIGHT);
+          my_snake.position[0].coords.y =
+              ((my_snake.position[0].coords.y + HEIGHT - 1) % HEIGHT);
           break;
         case DOWN:
-          my_snake.position[0].y = ((my_snake.position[0].y + 1) % HEIGHT);
+          my_snake.position[0].coords.y = ((my_snake.position[0].coords.y + 1) % HEIGHT);
           break;
         case LEFT:
-          my_snake.position[0].x =
-              ((my_snake.position[0].x + WIDTH - 1) % WIDTH);
+          my_snake.position[0].coords.x =
+              ((my_snake.position[0].coords.x + WIDTH - 1) % WIDTH);
           break;
         case RIGHT:
-          my_snake.position[0].x = ((my_snake.position[0].x + 1) % WIDTH);
+          my_snake.position[0].coords.x = ((my_snake.position[0].coords.x + 1) % WIDTH);
           break;
         default:
           goto end_of_program;
           break;
         }
 
-        uint8_t head_y = my_snake.position[0].y;
-        uint8_t head_x = my_snake.position[0].x;
+        uint8_t head_y = my_snake.position[0].coords.y;
+        uint8_t head_x = my_snake.position[0].coords.x;
 
         for (i = 1; i < my_snake.length; i++) {
-          int16_t x = my_snake.position[i].x;
-          int16_t y = my_snake.position[i].y;
+          int16_t x = my_snake.position[i].coords.x;
+          int16_t y = my_snake.position[i].coords.y;
 
           if (x == head_x && y == head_y) {
             printf("\n\nHAHA LOST!!!\n\n");
@@ -352,49 +361,46 @@ void update_field(snake my_snake, char board[HEIGHT][WIDTH][STRING_LEN],
   }
 
   for (i = 0; i < my_snake.length; i++) {
-    int16_t x = my_snake.position[i].x;
-    int16_t y = my_snake.position[i].y;
+    int16_t x = my_snake.position[i].coords.x;
+    int16_t y = my_snake.position[i].coords.y;
     if (x >= 0 && y >= 0) {
       if (!i) {
-        if (x == (my_snake.position[i + 1].x + 1) % WIDTH) {
+        if (my_snake.position[i].directions[0] == RIGHT) {
           strcpy(board[y][x], "\033[33m═\033[31mX\033[0m");
         } else {
           strcpy(board[y][x], "\033[31m X\033[0m");
         }
-      } else if (i == my_snake.length - 1) {
-        if (x != my_snake.position[i - 1].x) {
-          strcpy(board[y][x], "\033[33m══\033[0m");
-        } else {
-          strcpy(board[y][x], "\033[33m ║\033[0m");
-        }
       } else {
-        if (x != my_snake.position[i - 1].x &&
-            x != my_snake.position[i + 1].x) {
+        
+        direction smaller = my_snake.position[i].directions[0];
+        direction bigger = my_snake.position[i].directions[1];
+
+        direction first = my_snake.position[i].directions[0];
+        direction second = my_snake.position[i].directions[1];
+
+        if (bigger < smaller) {
+          direction tmp = smaller;
+          smaller = bigger;
+          bigger = tmp;
+        }
+
+
+        if (smaller % 2 != 0 && bigger % 2 == 1) {
           strcpy(board[y][x], "\033[33m══\033[0m");
-        } else if (y != my_snake.position[i - 1].y &&
-                   y != my_snake.position[i + 1].y) {
+        } else if ((!(smaller % 2) || smaller % 2 == -1) && !(bigger % 2)) {
           strcpy(board[y][x], "\033[33m ║\033[0m");
-        } else if ((y == (my_snake.position[i - 1].y + 1) % HEIGHT &&
-                    x == (my_snake.position[i + 1].x + 1) % WIDTH) ||
-                   (y == (my_snake.position[i + 1].y + 1) % HEIGHT &&
-                    x == (my_snake.position[i - 1].x + 1) % WIDTH)) {
-          strcpy(board[y][x], "\033[33m═╝\033[0m");
-        } else if ((y == (my_snake.position[i - 1].y + (HEIGHT - 1)) % HEIGHT &&
-                    x == (my_snake.position[i + 1].x + 1) % WIDTH) ||
-                   (y == (my_snake.position[i + 1].y + HEIGHT - 1) % HEIGHT &&
-                    x == (my_snake.position[i - 1].x + 1) % WIDTH)) {
+        } else if ((first == DOWN && second == RIGHT) || (first == LEFT && second == UP)) {
           strcpy(board[y][x], "\033[33m═╗\033[0m");
-        } else if ((y == (my_snake.position[i - 1].y + 1) % HEIGHT &&
-                    x == (my_snake.position[i + 1].x + (WIDTH - 1)) % WIDTH) ||
-                   (y == (my_snake.position[i + 1].y + 1) % HEIGHT &&
-                    x == (my_snake.position[i - 1].x + (WIDTH - 1)) % WIDTH)) {
-          strcpy(board[y][x], "\033[33m ╚\033[0m");
-        } else if ((y == (my_snake.position[i - 1].y + (HEIGHT - 1)) % HEIGHT &&
-                    x == (my_snake.position[i + 1].x + (WIDTH - 1)) % WIDTH) ||
-                   (y == (my_snake.position[i + 1].y + (HEIGHT - 1)) % HEIGHT &&
-                    x == (my_snake.position[i - 1].x + (WIDTH - 1)) % WIDTH)) {
+        } else if ((first == UP && second == RIGHT) || (first == LEFT && second == DOWN)) {
+          strcpy(board[y][x], "\033[33m═╝\033[0m");
+        } else if ((first == DOWN && second == LEFT) || (first == RIGHT && second == UP)) {
           strcpy(board[y][x], "\033[33m ╔\033[0m");
+        } else if ((first == UP && second == LEFT) || (first == RIGHT && second == DOWN)) {
+          strcpy(board[y][x], "\033[33m ╚\033[0m");
+        } else {
+          strcpy(board[y][x], "\033[33m x\033[0m");
         }
+
       }
     }
   }

snake_c

Commit 7dc23a551ade

Commit `7dc23a551ade`