board size change feature

compile.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+gcc -Wall -Werror -pedantic -o sanke main.c snake/**.c utils/**.c

globals.h

@@ -1,14 +1,16 @@
 #ifndef GLOBALS_H_
 #define GLOBALS_H_
 
-// Total board size
-#define BRD_SIZE_X 30
-#define BRD_SIZE_Y 15
+typedef struct {
+  int x;
+  int y;
+} boardInfo;
 
-// Playable board coord range values
-#define PL_BRD_XS 1
-#define PL_BRD_XE BRD_SIZE_X - 2
-#define PL_BRD_YS 1
-#define PL_BRD_YE BRD_SIZE_Y - 2
+typedef struct {
+  int xs;
+  int xe;
+  int ys;
+  int ye;
+} playableBoardInfo;
 
 #endif  // GLOBALS_H_

main.c

@@ -6,17 +6,36 @@
 #include <string.h>
 #include <time.h>
 #include <stdbool.h>
-#include "./globals.h"
 #include "./utils/utils.h"
 #include "./snake/snake.h"
-
-char board[BRD_SIZE_Y][BRD_SIZE_X];
+#include "globals.h"
 
 const char SNAKE_VIS = '#';
 
+boardInfo brdInfo;
+playableBoardInfo plBrdInfo;
+
 int main() {
   const clock_t initClock = clock();
 
+  // Board Constraints
+  printf("Set board size (15 - 60): ");
+  scanf("%d", &brdInfo.y);
+  if (!(brdInfo.y >= 15 && brdInfo.y <= 60)) {
+    printf("Invalid input. Board size must be greater than 0.\n");
+    exit(0);
+  }
+  brdInfo.x = brdInfo.y * 2;
+  printf("brdInfo.x: %d\n", brdInfo.x);
+  printf("brdInfo.y: %d\n", brdInfo.y);
+  char board[brdInfo.y][brdInfo.x];
+
+  plBrdInfo.xs = 1;
+  plBrdInfo.xe = brdInfo.x - 2;
+  plBrdInfo.ys = 1;
+  plBrdInfo.ye = brdInfo.y - 2;
+
+
   // Termios setup
   struct termios attr;
 
@@ -31,11 +50,11 @@ int main() {
   tcsetattr(STDIN_FILENO, 0, &attr);
 
   // Game board setup
-  for (int i = 0; i < BRD_SIZE_Y; i++) {
-    for (int j = 0; j < BRD_SIZE_X; j++) {
-      if (i == 0 || i == BRD_SIZE_Y - 1)
+  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 == BRD_SIZE_X - 1)
+      else if (j == 0 || j == brdInfo.x - 1)
         board[i][j] = '|';
       else
         board[i][j] = ' ';
@@ -43,9 +62,9 @@ int main() {
   }
 
   board[0][0] = '+';
-  board[BRD_SIZE_Y - 1][0] = '+';
-  board[0][BRD_SIZE_X - 1] = '+';
-  board[BRD_SIZE_Y - 1][BRD_SIZE_X - 1] = '+';
+  board[brdInfo.y - 1][0] = '+';
+  board[0][brdInfo.x - 1] = '+';
+  board[brdInfo.y - 1][brdInfo.x - 1] = '+';
 
   int points = 0;
   int gameSpeed = 0;
@@ -95,7 +114,7 @@ int main() {
         food.x = randomX(initClock);
         food.y = randomY(initClock);
       } while (checkCollision(snakeHead, food.x, food.y));
-      addSnakePart(snakeHead);
+      addSnakePart(board, snakeHead);
     }
 
     // Input handling
@@ -116,7 +135,7 @@ int main() {
 
     // Update board
     board[food.y][food.x] = food.visChar;
-    mvSnakeParts(snakeHead);
+    mvSnakeParts(board, snakeHead);
 
     // Snake collision
     if (snakeHead->next != NULL) {
@@ -134,51 +153,10 @@ int main() {
     }
 
     system("clear");
-    printBoard();
+    printBoard(board);
     printf("Points: %d\n", points);
     printf("Game Speed: %d\n", gameSpeed);
 
-    /*
-    printf("x: %d\n", snakeHead->x);
-    printf("y: %d\n\n", snakeHead->y);
-    printf("food x: %d\n", food.x);
-    printf("food y: %d\n", food.y);
-
-    {
-      snakePart* current = snakeHead;
-      int i = 0;
-      while (1) {
-        printf("Part %d:\n", i);
-        printf("dir: %c\n", current->dir);
-        printf("orders: \n");
-        order* order = current->order;
-        int order_i = 0;
-        while (1) {
-          printf("\t\nOrder %d:\n", order_i);
-          printf("\tdir: %c\n", order->dir);
-          printf("\tdelay: %d\n", order->delay);
-          printf("\tnext: ");
-          if (order->next == NULL)
-            printf("NULL\n");
-          else
-            printf("exists\n");
-          
-          if (order->next == NULL)
-            break;
-
-          order = order->next;
-
-          order_i++;
-        }
-        if (current->next == NULL)
-          break;
-
-        current = current->next;
-        i++;
-      }
-    }
-    */
-
     sleep_ms(sleepInterval - gameSpeed);
   }
 
@@ -187,7 +165,7 @@ game_over:
   // Game over
   system("clear");
 
-  printBoard();
+  printBoard(board);
   printf("Final Points: %d\n", points);
   printf("Final Game Speed: %d\n", gameSpeed);
 

snake/snake.c

@@ -3,10 +3,11 @@
 #include <stdbool.h>
 #include "snake.h"
 
-extern char board[BRD_SIZE_Y][BRD_SIZE_X];
 extern char SNAKE_VIS;
+extern boardInfo brdInfo;
+extern playableBoardInfo plBrdInfo;
 
-void mvSnakeParts(snakePart* head) { 
+void mvSnakeParts(char board[][brdInfo.x], snakePart* head) { 
   snakePart* part = head;
   while (1) {
 
@@ -37,16 +38,16 @@ void mvSnakeParts(snakePart* head) {
 
     switch (part->dir) {
       case 'w':
-        y = y - 1 < PL_BRD_YS ? PL_BRD_YE : y - 1;
+        y = y - 1 < plBrdInfo.ys ? plBrdInfo.ye : y - 1;
         break;
       case 's':
-        y = y + 1 > PL_BRD_YE ? PL_BRD_YS : y + 1;
+        y = y + 1 > plBrdInfo.ye ? plBrdInfo.ys : y + 1;
         break;
       case 'a':
-        x = x - 2 < PL_BRD_XS ? PL_BRD_XE - 1 : x - 2;
+        x = x - 2 < plBrdInfo.xs ? plBrdInfo.xe - 1 : x - 2;
         break;
       case 'd':
-        x = x + 2 > PL_BRD_XE ? PL_BRD_XS : x + 2;
+        x = x + 2 > plBrdInfo.xe ? plBrdInfo.xs : x + 2;
         break;
       default:
         printf("ERROR in func mvSnakeParts\n");
@@ -66,7 +67,7 @@ void mvSnakeParts(snakePart* head) {
   }
 }
 
-void addSnakePart(snakePart* head) {
+void addSnakePart(char board[][brdInfo.x], snakePart* head) {
   snakePart* tail = head;
 
   while (tail->next != NULL)

snake/snake.h

@@ -3,6 +3,8 @@
 
 #include "../globals.h"
 
+extern boardInfo brdInfo;
+
 typedef struct orderNode {
   char dir;
   int delay;
@@ -19,8 +21,8 @@ typedef struct snakeNode {
   struct snakeNode* next;
 } snakePart;
 
-void mvSnakeParts(snakePart* head);
-void addSnakePart(snakePart* head);
+void mvSnakeParts(char board[][brdInfo.x], snakePart* head);
+void addSnakePart(char board[][brdInfo.x], snakePart* head);
 void pushOrder(order* head, char dir, int delay);
 void removeOrder(order* head);
 void addOrders(snakePart* head, char dir);

utils/utils.c

@@ -3,9 +3,9 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include "utils.h"
-#include "../globals.h"
 
-extern char board[BRD_SIZE_Y][BRD_SIZE_X];
+extern boardInfo brdInfo;
+extern playableBoardInfo plBrdInfo;
 
 int randomInt(const int start, const int end, const unsigned int seed) {
   /*
@@ -22,7 +22,7 @@ int randomX(const clock_t initClock) {
   int x;
   const unsigned int seed = clock() - initClock;
   for (int i = randomInt(0, 100, seed); ; i++) {
-    x = randomInt(PL_BRD_XS, PL_BRD_XE, i);
+    x = randomInt(plBrdInfo.xs, plBrdInfo.xe, i);
     if (x % 2 != 0)
       break;
   }
@@ -32,16 +32,16 @@ int randomX(const clock_t initClock) {
 
 int randomY(const clock_t initClock) {
   const unsigned int seed = clock() - initClock;
-  return randomInt(PL_BRD_YS, PL_BRD_YE, seed);
+  return randomInt(plBrdInfo.ys, plBrdInfo.ye, seed);
 }
 
 void sleep_ms(const int ms) {
   usleep(ms * 1000);
 }
 
-void printBoard() {
-  for (int i = 0; i < BRD_SIZE_Y; i++) {
-    for (int j = 0; j < BRD_SIZE_X; j++) {
+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");

utils/utils.h

@@ -2,11 +2,14 @@
 #define UTILS_H_
 
 #include <time.h>
+#include "../globals.h"
+
+extern boardInfo brdInfo;
 
 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 printBoard();
+void printBoard(char board[][brdInfo.x]);
 
 #endif  // UTILS_H_