hasty bugfix and moved board functions to own directory

src/board/board.c

@@ -0,0 +1,31 @@
+#include <stdio.h>
+#include "../globals.h"
+
+extern boardInfo brdInfo;
+
+void setBoardBorders(char board[][brdInfo.x]) {
+  for (int i = 0; i < brdInfo.y; i++) {
+    for (int j = 0; j < brdInfo.x; j++) {
+      if (i == 0 || i == brdInfo.y - 1)
+        board[i][j] = '-';
+      else if (j == 0 || j == brdInfo.x - 1)
+        board[i][j] = '|';
+      else
+        board[i][j] = ' ';
+    }
+  }
+
+  board[0][0] = '+';
+  board[brdInfo.y - 1][0] = '+';
+  board[0][brdInfo.x - 1] = '+';
+  board[brdInfo.y - 1][brdInfo.x - 1] = '+';
+}
+
+void printBoard(char board[][brdInfo.x]) {
+  for (int i = 0; i < brdInfo.y; i++) {
+    for (int j = 0; j < brdInfo.x; j++) {
+      printf("%c", board[i][j]);
+    }
+    printf("\n");
+  }
+}

src/board/board.h

@@ -0,0 +1,11 @@
+#ifndef BOARD_H_
+#define BOARD_H_
+
+#include "../globals.h"
+
+extern boardInfo brdInfo;
+
+void setBoardBorders(char board[][brdInfo.x]);
+void printBoard(char board[][brdInfo.x]);
+
+#endif

src/main.c

@@ -8,6 +8,7 @@
 #include <stdbool.h>
 #include "./utils/utils.h"
 #include "./snake/snake.h"
+#include "./board/board.h"
 #include "globals.h"
 
 const char SNAKE_VIS = '#';
@@ -50,21 +51,7 @@ int main() {
   tcsetattr(STDIN_FILENO, 0, &attr);
 
   // Game board setup
-  for (int i = 0; i < brdInfo.y; i++) {
-    for (int j = 0; j < brdInfo.x; j++) {
-      if (i == 0 || i == brdInfo.y - 1)
-        board[i][j] = '-';
-      else if (j == 0 || j == brdInfo.x - 1)
-        board[i][j] = '|';
-      else
-        board[i][j] = ' ';
-    }
-  }
-
-  board[0][0] = '+';
-  board[brdInfo.y - 1][0] = '+';
-  board[0][brdInfo.x - 1] = '+';
-  board[brdInfo.y - 1][brdInfo.x - 1] = '+';
+  setBoardBorders(board);
 
   int points = 0;
   int gameSpeed = 0;

src/snake/snake.c

@@ -2,6 +2,7 @@
 #include <stdlib.h>
 #include <stdbool.h>
 #include "snake.h"
+#include "../board/board.h"
 
 extern char SNAKE_VIS;
 extern boardInfo brdInfo;
@@ -107,6 +108,23 @@ void addSnakePart(char board[][brdInfo.x], snakePart* head) {
       exit(1);
   }
 
+  /*
+    Untested fix to a bug where the new part
+    would replace a part of the board border.
+  */
+  if (newTail->x > plBrdInfo.xe) {
+    newTail->x = plBrdInfo.xs;
+  } else if (newTail->x < plBrdInfo.xs) {
+    newTail->x = plBrdInfo.xe;
+  }
+
+  if (newTail->y > plBrdInfo.ye) {
+    newTail->y = plBrdInfo.ys;
+  } else if (newTail->y < plBrdInfo.ys) {
+    newTail->y = plBrdInfo.ye;
+  }
+  // bugfix end
+
   newTail->next = NULL;
 
   tail->next = newTail;

src/utils/utils.c

@@ -39,6 +39,24 @@ void sleep_ms(const int ms) {
   usleep(ms * 1000);
 }
 
+void setBoardBorders(char board[][brdInfo.x]) {
+  for (int i = 0; i < brdInfo.y; i++) {
+    for (int j = 0; j < brdInfo.x; j++) {
+      if (i == 0 || i == brdInfo.y - 1)
+        board[i][j] = '-';
+      else if (j == 0 || j == brdInfo.x - 1)
+        board[i][j] = '|';
+      else
+        board[i][j] = ' ';
+    }
+  }
+
+  board[0][0] = '+';
+  board[brdInfo.y - 1][0] = '+';
+  board[0][brdInfo.x - 1] = '+';
+  board[brdInfo.y - 1][brdInfo.x - 1] = '+';
+}
+
 void printBoard(char board[][brdInfo.x]) {
   for (int i = 0; i < brdInfo.y; i++) {
     for (int j = 0; j < brdInfo.x; j++) {

src/utils/utils.h

@@ -10,6 +10,7 @@ int randomInt(const int start, const int end, const unsigned int seed);
 int randomX(const clock_t initClock);
 int randomY(const clock_t initClock);
 void sleep_ms(const int ms);
+void setBoardBorders(char board[][brdInfo.x]);
 void printBoard(char board[][brdInfo.x]);
 
 #endif  // UTILS_H_