Merge pull request #8 from besser82/improvements

Unified codebase

.gitignore

@@ -1 +1,2 @@
 /2048*
+*~

Makefile

@@ -4,11 +4,11 @@ LIBS	= -lcurses
 
 all: 2048
 
-2048: src/2048.c src/2048.h src/highscore_file.c
+2048: src/2048.c
-	$(CC) $(CFLAGS) $(LDFLAGS) $(LIBS) src/2048.c src/highscore_file.c -o 2048
+	$(CC) $(CFLAGS) $(LDFLAGS) $(LIBS) src/2048.c -o 2048
 
-2048nc: src/2048_no_curses.c src/2048.h src/highscore_file.c
+2048nc: src/2048.c
-	$(CC) $(CFLAGS) $(LDFLAGS) src/2048_no_curses.c src/highscore_file.c -o 2048nc
+	$(CC) -DNO_CURSES=1 $(CFLAGS) $(LDFLAGS) src/2048.c -o 2048nc
 
 clean:
 	rm -f 2048 2048nc

src/2048.c

@@ -1,20 +1,69 @@
 /*
- * 2048.c - Main version that should be worked on.
+ * 2048.c - The game 2048 for your Linux terminal.
+ *
+ * Copyright (c) 2014 Tiehuis
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
  *
  * Things to do:
  *  - Finish cleaning up code.
  *  - Ask user if they would like to play again instead of exiting immediately.
  *  - Add an actual goal (what happens when we reach 2048?).
  *  - Keep track list of past scores, and store in a better fashion independent
- *    of cwd. Also, store in not in plaintext.
+ *    of cwd. Also, store not in plaintext.
  * */
 
-#include <stdlib.h> /* for malloc  */
+#include <stdlib.h>    /* for malloc           */
-#include <time.h>   /* for time    */
+#include <stdio.h>     /* for printf, FILE     */
-#include <unistd.h> /* for getopts */
+#include <string.h>    /* for strlen, strrchr  */
-#include <ncurses.h> 
+#include <sys/stat.h>  /* for mkdir            */
-#include "2048.h"
+#include <time.h>      /* for time             */
+#include <unistd.h>    /* for getopts          */
 
+#ifndef NO_CURSES
+  #include <ncurses.h> /* for ncurses terminal */
+#else  /* ifndef NO_CURSES */
+  #include <termios.h> /* for plain terminal   */
+#endif /* ifndef NO_CURSES */
+
+
+/*     Constants     */
+#define DATADIR_NAME "2048"
+#define HIGHSCORE_FILE_NAME "highscore"
+#define DEFAULT_GRID_SIZE 4
+#define HISCORE_FILE get_highscore_file()
+#define USAGE_STR\
+   "Usage:\n"\
+   "    ./2048 [options]\n"\
+   "\n"\
+   "Controls:\n"\
+   "    hjkl, wasd      Movement\n"\
+   "    q               Quit\n"\
+   "\n"\
+   "Options:\n"\
+   "    -s <size>       Set the grid border length\n"\
+   "    -b <rate>       Set the block spawn rate\n"\
+   "    -c              Enables color support (ncurses version only)\n"\
+   "    -C              Disables color support (ncurses version only)\n"
+
+
+/*     Globals     */
 int **grid;     /* grid pointer */
 int grid_size;  /* grid size */
 int score;      /* score */
@@ -22,6 +71,70 @@ int score_last; /* Score for last move */
 int score_high; /* Hiscore */
 int printwidth; /* maximum length of any value in grid, for printing */
 
+
+/*     Typedefs     */
+typedef enum {
+    DIR_UP,
+    DIR_RIGHT,
+    DIR_DOWN,
+    DIR_LEFT
+} dir_t;
+
+
+/*     Macros     */
+/* Repeat an expression y, x times */
+#define ITER(x, expr)\
+    do {\
+        int i;\
+        for (i = 0; i < (x); i++){ expr;}\
+    } while (0)
+
+/* Allocates a square pointer of array of arrays onto heap */
+#define CALLOC2D(ptr, sz)\
+    do {\
+        int i;\
+        ptr = calloc((sz), sizeof(*ptr));\
+        for (i = 0; i < (sz); i++)\
+            ptr[i] = calloc((sz), sizeof(*ptr));\
+    } while (0)
+
+/* Frees a square pointer of arrays to arrays */
+#define FREE2D(ptr, sz)\
+    do {\
+        int i;\
+        for (i = 0; i < (sz); i++)\
+            free(ptr[i]);\
+        free(ptr);\
+    } while (0)
+
+/* What occurs during a 'turn' of execution */
+#define TURN(x) (gravitate(x) + merge(x) + gravitate(x))
+
+
+/*     Functions     */
+const char* get_highscore_file() {
+    static char buffer[4096];
+    if (getenv("XDG_DATA_HOME") != NULL) {
+        snprintf(buffer, sizeof(buffer), "%s/%s/%s", getenv("XDG_DATA_HOME"), DATADIR_NAME, HIGHSCORE_FILE_NAME);
+    } else if (getenv("HOME") != NULL) {
+        snprintf(buffer, sizeof(buffer), "%s/.local/share/%s/%s", getenv("HOME"), DATADIR_NAME, HIGHSCORE_FILE_NAME);
+    } else {
+        return HIGHSCORE_FILE_NAME;
+    }
+
+    // create hierarrchy of directories up to highscore file location
+    char* sep = strrchr(buffer, '/');
+    while (sep != NULL) {
+        *sep = '\0';
+        if (strlen(buffer) != 0)
+            mkdir(buffer, 0777);
+        char* tmpsep = sep;
+        sep = strrchr(buffer, '/');
+        *tmpsep = '/';
+    }
+    return buffer;
+}
+
 /* Merges adjacent squares of the same value together in a certain direction */
 int merge(dir_t d)
 {
@@ -88,7 +201,7 @@ int merge(dir_t d)
     return moved;
 }
 
-    
+
 /* move all values in the grid to the edge given by the direction pressed */
 /* would be nice to generalize this code a little so didn't need four loops */
 /* if animations are wanted, then need to alter this so it moves each square one at a time */
@@ -157,10 +270,11 @@ int gravitate(dir_t d)
 }
 
 /* Return the current highscore */
-int get_score_high() {
+int get_score_high()
+{
     int s = 0;
     FILE *fd = fopen(HISCORE_FILE, "r");
-    if (fd == NULL) 
+    if (fd == NULL)
         fd = fopen(HISCORE_FILE, "w+");
 
     if (fscanf(fd, "%d", &s) == 1) {};
@@ -169,7 +283,8 @@ int get_score_high() {
 }
 
 /* saves hiscore, but only if playing on standard size grid */
-void save_score_high() {
+void save_score_high()
+{
     if (score > score_high && grid_size == 4) {
         score_high = score;
         FILE *fd = fopen(HISCORE_FILE, "w+");
@@ -184,8 +299,8 @@ int moves_available()
     int i, j;
     for (i = 0; i < grid_size; i++)
     for (j = 0; j < grid_size; j++)
-        if (!grid[i][j] 
+        if (!grid[i][j]
-            || ((i + 1 < grid_size) && (grid[i][j] == grid[i + 1][j])) 
+            || ((i + 1 < grid_size) && (grid[i][j] == grid[i + 1][j]))
             || ((j + 1 < grid_size) && (grid[i][j] == grid[i][j + 1])))
             return 1;
     return 0;
@@ -209,6 +324,8 @@ int flog2(unsigned int n)
     return k;
 }
 
+#ifndef NO_CURSES
+
 /* draws the grid and fills it with the current values */
 /* colors just rotate around, works for now, can be confusing when you have some fairly high values on the board */
 void draw_grid(WINDOW *gamewin)
@@ -218,7 +335,7 @@ void draw_grid(WINDOW *gamewin)
     mvwprintw(gamewin, 0, 0, scr, score, score_last);
     mvwprintw(gamewin, 1, 0, "HISCR: %d\n", score_high);
 
-    ITER(grid_size*(printwidth + 2) + 1, waddch(gamewin, '-')); 
+    ITER(grid_size*(printwidth + 2) + 1, waddch(gamewin, '-'));
     int i, j, xps = 0, yps = 3;
     for (i = 0; i < grid_size; i++, xps = 0, yps++) {
         mvwprintw(gamewin, yps, xps++, "|");
@@ -236,19 +353,52 @@ void draw_grid(WINDOW *gamewin)
             xps += (printwidth + 2);
         }
     }
-    ITER(grid_size*(printwidth + 2) + 1, waddch(gamewin, '-')); 
+    ITER(grid_size*(printwidth + 2) + 1, waddch(gamewin, '-'));
     wrefresh(gamewin);
 }
 
+#else  /* ifndef NO_CURSES */
+
+/* draws the grid and fills it with the current values */
+void draw_grid()
+{
+    printf("HISCORE: %d |", score_high);
+    printf("| SCORE: %d ", score);
+    if (score_last) printf("(+%d)", score_last);
+    printf("\n");
+
+    // alter this grid_size + 1 to match abitrary grid size
+    ITER(grid_size, printf("------"));
+    printf("-\n");
+    int i, j;
+    for (i = 0; i < grid_size; i++) {
+        printf("|");
+        for (j = 0; j < grid_size; j++) {
+            if (grid[i][j])
+                printf("%*d |", 4, grid[i][j]);
+            else
+                printf("     |");
+        }
+        printf("\n");
+    }
+    ITER(grid_size, printf("------"));
+    printf("-\n\n");
+}
+
+/* store the terminal settings and call this function on exit to restore */
+struct termios sattr;
+void reset_term()
+{
+    tcsetattr(STDIN_FILENO, TCSANOW, &sattr);
+}
+
+#endif /* ifndef NO_CURSES */
+
+
 /* entry point for the program */
 /* parses options and stores the main game loop */
 int main(int argc, char **argv)
 {
-    /* init ncurses environment */
-    initscr();
-    cbreak();
-    noecho();
-    curs_set(FALSE);
 
     /* init variables */
     score      = 0;
@@ -257,13 +407,22 @@ int main(int argc, char **argv)
     grid_size  = DEFAULT_GRID_SIZE;
     printwidth = DEFAULT_GRID_SIZE;
 
-    int n_blocks = 1;
+    int n_blocks     = 1;
-    
+
+#ifndef NO_CURSES
+    /* init ncurses environment */
+    initscr();
+    cbreak();
+    noecho();
+    curs_set(FALSE);
+    int enable_color = has_colors();
+#endif /* ifndef NO_CURSES */
+
     /* parse options */
     int c;
-    int enable_color = has_colors();
     while ((c = getopt(argc, argv, "rcChs:b:")) != -1) {
         switch (c) {
+#ifndef NO_CURSES
         /* Color support */
         case 'c':
             enable_color = 1;
@@ -271,6 +430,7 @@ int main(int argc, char **argv)
         case 'C':
             enable_color = 0;
             break;
+#endif /* ifndef NO_CURSES */
         // different board sizes
         case 's':;
             int optint = strtol(optarg, NULL, 10);
@@ -282,7 +442,9 @@ int main(int argc, char **argv)
             break;
         // reset hiscores
         case 'r':
+#ifndef NO_CURSES
             endwin();
+#endif /* ifndef NO_CURSES */
             printf("Are you sure you want to reset your highscores? (Y)es or (N)o\n");
             int response;
             if ((response = getchar()) == 'y' || response == 'Y') {
@@ -292,12 +454,21 @@ int main(int argc, char **argv)
             exit(EXIT_SUCCESS);
         // help menu
         case 'h':
+#ifndef NO_CURSES
             endwin();
+#endif /* ifndef NO_CURSES */
             printf(USAGE_STR);
             exit(EXIT_SUCCESS);
         }
     }
 
+    /* Allocate memory once we actually know amount */
+    CALLOC2D(grid, grid_size);
+
+#ifndef NO_CURSES
+    int width  = grid_size * (printwidth + 2) + 1;
+    int height = grid_size * (printwidth + 2) + 3;
+
     if (enable_color) {
         if (!has_colors()) {
             fprintf(stderr, "Terminal does not support color\n");
@@ -313,64 +484,98 @@ int main(int argc, char **argv)
         }
     }
 
-    /* Allocate memory once we actually know amount */
-    CALLOC2D(grid, grid_size);
-
-    int width  = grid_size * (printwidth + 2) + 1;
-    int height = grid_size * (printwidth + 2) + 3;
-
     // might center in middle of screen
     WINDOW *gamewin = newwin(height, width, 1, 1);
     keypad(gamewin, TRUE);
+#else  /* ifndef NO_CURSES */
+
+    /* store term settings so we can restore on exit */
+    tcgetattr(STDIN_FILENO, &sattr);
+    atexit(reset_term);
+
+    /* alters terminal stdin to not echo and doesn't need \n before reading getchar */
+    struct termios tattr;
+    tcgetattr(STDIN_FILENO, &tattr);
+    tattr.c_lflag &= ~(ICANON | ECHO);
+    tcsetattr(STDOUT_FILENO, TCSANOW, &tattr);
+#endif /* ifndef NO_CURSES */
 
     /* random seed */
     srand((unsigned int)time(NULL));
     ITER(2, rand_block());
+#ifndef NO_CURSES
     draw_grid(gamewin);
+#else  /* ifndef NO_CURSES */
+    draw_grid();
+#endif /* ifndef NO_CURSES */
 
     int key, moved;
     while (1) {
         /* will goto this if we didn't get a valid keypress */
-retry:;
+        retry:;
+
         moved = 0;
         score_last = 0;
+
+#ifndef NO_CURSES
         key = wgetch(gamewin);
+#else  /* ifndef NO_CURSES */
+        key = getchar();
+#endif /* ifndef NO_CURSES */
 
         /* should check if anything changed during merge and if not retry */
         switch (key) {
+
         case 'h':
         case 'a':
+#ifndef NO_CURSES
         case KEY_LEFT:
+#endif /* ifndef NO_CURSES */
             moved = TURN(DIR_LEFT);
             break;
+
         case 'l':
         case 'd':
+#ifndef NO_CURSES
         case KEY_RIGHT:
+#endif /* ifndef NO_CURSES */
             moved = TURN(DIR_RIGHT);
             break;
+
         case 'j':
         case 's':
+#ifndef NO_CURSES
         case KEY_DOWN:
+#endif /* ifndef NO_CURSES */
             moved = TURN(DIR_DOWN);
             break;
+
         case 'k':
         case 'w':
+#ifndef NO_CURSES
         case KEY_UP:
+#endif /* ifndef NO_CURSES */
             moved = TURN(DIR_UP);
             break;
+
         case 'q':
             FREE2D(grid, grid_size);
+#ifndef NO_CURSES
             erase();
             refresh();
             endwin();
+#endif /* ifndef NO_CURSES */
             save_score_high();
             exit(EXIT_SUCCESS);
+
         default:
             goto retry;
         }
-        
+
         if (!moves_available()) {
+#ifndef NO_CURSES
             endwin();
+#endif /* ifndef NO_CURSES */
             printf("\n"
                    "YOU LOSE! - Your score was %d\n", score);
             save_score_high();
@@ -379,7 +584,11 @@ retry:;
 
         if (moved) {
             ITER(n_blocks, rand_block());
+#ifndef NO_CURSES
             draw_grid(gamewin);
+#else  /* ifndef NO_CURSES */
+            draw_grid();
+#endif /* ifndef NO_CURSES */
         }
     }
 

src/2048.h

@@ -1,65 +0,0 @@
-#ifndef _2048_H_
-#define _2048_H_
-
-#include <stdlib.h>
-#include <sys/stat.h>
-#include <string.h>
-
-typedef enum {
-    DIR_UP,
-    DIR_RIGHT,
-    DIR_DOWN,
-    DIR_LEFT
-} dir_t;
-
-#define DATADIR_NAME "2048"
-#define HIGHSCORE_FILE_NAME "highscore"
-
-const char* get_highscore_file();
-
-// Repeat an expression y, x times */
-#define ITER(x, expr)\
-    do {\
-        int i;\
-        for (i = 0; i < (x); i++){ expr;}\
-    } while (0)
-
-/* Allocates a square pointer of array of arrays onto heap */
-#define CALLOC2D(ptr, sz)\
-    do {\
-        int i;\
-        ptr = calloc((sz), sizeof(*ptr));\
-        for (i = 0; i < (sz); i++)\
-            ptr[i] = calloc((sz), sizeof(*ptr));\
-    } while (0)
-
-/* Frees a square pointer of arrays to arrays */
-#define FREE2D(ptr, sz)\
-    do {\
-        int i;\
-        for (i = 0; i < (sz); i++)\
-            free(ptr[i]);\
-        free(ptr);\
-    } while (0)
-
-/* What occurs during a 'turn' of execution */
-#define TURN(x) (gravitate(x) + merge(x) + gravitate(x))
-
-/* Constants */
-#define DEFAULT_GRID_SIZE 4
-#define HISCORE_FILE get_highscore_file()
-#define USAGE_STR\
-   "Usage:\n"\
-   "    ./2048 [options]\n"\
-   "\n"\
-   "Controls:\n"\
-   "    hjkl, wasd      Movement\n"\
-   "    q               Quit\n"\
-   "\n"\
-   "Options:\n"\
-   "    -s <size>       Set the grid border length\n"\
-   "    -b <rate>       Set the block spawn rate\n"\
-   "    -c              Enables color support (ncurses version only)\n"\
-   "    -C              Disables color support (ncurses version only)\n"
-
-#endif

src/2048_no_curses.c

@@ -1,326 +0,0 @@
-/*
- * 2048_no_curses.c - Non-curses version that can be updated at a later time 
- **/
-
-#include <stdio.h>  /* for printf  */
-#include <stdlib.h> /* for malloc  */
-#include <termios.h>/*             */
-#include <time.h>   /* for time    */
-#include <unistd.h> /* for getopts */
-#include "2048.h"
-
-int **g; /* grid pointer */
-int SZ; /* grid size */
-int s;  /* Current score */
-int sl; /* Score for last turn */
-int hs; /* Highscore */
-
-/* Merges adjacent squares of the same value together in a certain direction */
-int merge(int d)
-{
-    int moved = 0;
-    if (d == DIR_LEFT) {
-        int i, j;
-        for (i = 0; i < SZ; i++) {
-            for (j = 0; j < SZ; j++) {
-                if (j + 1 < SZ && g[i][j] && g[i][j] == g[i][j + 1]) {
-                    g[i][j] <<= 1;
-                    sl += g[i][j];
-                    s  += g[i][j];
-                    g[i][j++ + 1] = 0;
-                    moved = 1;
-                }
-            }
-        }
-    }
-    else if (d == DIR_UP) {
-        int i, j;
-        for (i = 0; i < SZ; i++) {
-            for (j = 0; j < SZ; j++) {
-                if (j + 1 < SZ && g[j][i] && g[j][i] == g[j + 1][i]) {
-                    g[j][i] <<= 1;
-                    sl += g[j][i];
-                    s  += g[j][i];
-                    g[j++ + 1][i] = 0;
-                    moved = 1;
-                }
-            }
-        }
-    }
-    else if (d == DIR_RIGHT) {
-        int i, j;
-        for (i = SZ - 1; i >= 0; i--) {
-            for (j = SZ - 1; j >= 0; j--) {
-                if (j > 0 && g[i][j] && g[i][j] == g[i][j - 1]) {
-                    g[i][j] <<= 1;
-                    sl += g[i][j];
-                    s  += g[i][j];
-                    g[i][j-- - 1] = 0;
-                    moved = 1;
-                }
-            }
-        }
-    }
-    else if (d == DIR_DOWN) {
-        int i, j;
-        for (i = SZ - 1; i >= 0; i--) {
-            for (j = SZ - 1; j >= 0; j--) {
-                if (j > 0 && g[j][i] && g[j][i] == g[j - 1][i]) {
-                    g[j][i] <<= 1;
-                    sl += g[j][i];
-                    s  += g[j][i];
-                    g[j-- - 1][i] = 0;
-                    moved = 1;
-                }
-            }
-        }
-    }
-    return moved;
-}
-
-    
-/* move all values in the grid to the edge given by the direction pressed */
-/* would be nice to generalize this code a little so didn't need four loops */
-int gravitate(int d)
-{
-    int moved = 0;
-    if (d == DIR_LEFT) {
-        int i, j;
-        for (i = 0; i < SZ; i++) {
-            for (j = 0; j < SZ - 1; j++) {
-                if (g[i][j]) continue;
-                int st = 1;
-                while (j + st < SZ && !g[i][j + st]) st++;
-                if (j + st < SZ) {
-                    g[i][j] = g[i][j + st];
-                    g[i][j + st] = 0;
-                    moved = 1;
-                }
-            }
-        }
-    }
-    else if (d == DIR_UP) {
-        int i, j;
-        for (i = 0; i < SZ; i++) {
-            for (j = 0; j < SZ - 1; j++) {
-                if (g[j][i]) continue;
-                int st = 1;
-                while (j + st < SZ && !g[j + st][i]) st++;
-                if (j + st < SZ) {
-                    g[j][i] = g[j + st][i];
-                    g[j + st][i] = 0;
-                    moved = 1;
-                }
-            }
-        }
-    }
-    else if (d == DIR_RIGHT) {
-        int i, j;
-        for (i = 0; i < SZ; i++) {
-            for (j = SZ - 1; j > 0; j--) {
-                if (g[i][j]) continue;
-                int st = 1;
-                while (j - st >= 0 && !g[i][j - st]) st++;
-                if (j - st >= 0) {
-                    g[i][j] = g[i][j - st];
-                    g[i][j - st] = 0;
-                    moved = 1;
-                }
-            }
-        }
-    }
-    else if (d == DIR_DOWN) {
-        int i, j;
-        for (i = 0; i < SZ; i++) {
-            for (j = SZ - 1; j > 0; j--) {
-                if (g[j][i]) continue;
-                int st = 1;
-                while (j - st >= 0 && !g[j - st][i]) st++;
-                if (j - st >= 0) {
-                    g[j][i] = g[j - st][i];
-                    g[j - st][i] = 0;
-                    moved = 1;
-                }
-            }
-        }
-    }
-    return moved;
-}
-
-/* loads hiscore */
-void load_score() {
-    FILE *fd = fopen(HISCORE_FILE, "r");
-    if (fd == NULL) fd = fopen(HISCORE_FILE, "w+");
-    if (fscanf(fd, "%d", &hs) == EOF) hs = 0;
-    fclose(fd);
-}
-
-/* saves hiscore, but only if playing on standard size grid */
-void save_score() {
-    if (s > hs && SZ == 4) {
-        hs = s;
-        FILE *fd = fopen(HISCORE_FILE, "w+");
-        fprintf(fd, "%d", hs);
-        fclose(fd);
-    }
-}
-
-/* returns if there are any possible moves */
-int moves_available()
-{
-    int i, j;
-    for (i = 0; i < SZ; i++)
-        for (j = 0; j < SZ; j++)
-            if (!g[i][j] || ((i + 1 < SZ) && (g[i][j] == g[i + 1][j])) || ((j + 1 < SZ) && (g[i][j] == g[i][j + 1])))
-                return 1;
-    return 0;
-}
-
-/* places a random block onto the grid - either a 4, or a 2 with a ratio of 1:3 respectively */
-/* do this in a smarter fashion */
-void rand_block()
-{
-    int x_p, y_p;
-    while (g[x_p = rand() % SZ][y_p = rand() % SZ]);
-    g[x_p][y_p] = (rand() & 3) ?  2 : 4;
-}
-
-/* draws the grid and fills it with the current values */
-void draw_grid()
-{
-    printf("HISCORE: %d |", hs);
-    printf("| SCORE: %d ", s);
-    if (sl) printf("(+%d)", sl); 
-    printf("\n"); 
-
-    // alter this SZ + 1 to match abitrary grid size
-    ITER(SZ, printf("------"));
-    printf("-\n");
-    int i, j;
-    for (i = 0; i < SZ; i++) {
-        printf("|");
-        for (j = 0; j < SZ; j++) {
-            if (g[i][j])
-                printf("%*d |", 4, g[i][j]);
-            else
-                printf("     |");
-        }
-        printf("\n");
-    }
-    ITER(SZ, printf("------"));
-    printf("-\n\n");
-}
-
-/* store the terminal settings and call this function on exit to restore */
-struct termios sattr;
-void reset_term()
-{
-    tcsetattr(STDIN_FILENO, TCSANOW, &sattr);
-}
-
-/* entry point for the program */
-/* parses options and stores the main game loop */
-int main(int argc, char **argv)
-{
- 
-    /* init variables */
-    hs = 0;
-    s  = 0;
-    sl = 0;
-    SZ = 4;
-    CALLOC2D(g, SZ);
-
-    load_score();
-    int n_blocks = 1;
-    
-    /* parse options */
-    int c;
-    while ((c = getopt(argc, argv, "rhs:b:")) != -1) {
-        switch (c) {
-            // different board sizes
-            case 's':
-                FREE2D(g, SZ);
-                int optint = atoi(optarg);
-                SZ = optint > 4 ? optint : 4;
-                CALLOC2D(g, SZ);
-                break;
-            // different block spawn rate
-            case 'b':
-                n_blocks = atoi(optarg);
-                break;
-            // reset hiscores
-            case 'r':
-                printf("Are you sure you want to reset your highscores? (Y)es or (N)o\n");
-                int response;
-                if ((response = getchar()) == 'y' || response == 'Y') {
-                    FILE *fd = fopen(HISCORE_FILE, "w+");
-                    fclose(fd);
-                }
-                exit(EXIT_SUCCESS);
-            case 'h':
-                printf(USAGE_STR);
-                exit(EXIT_SUCCESS);
-        }
-    }
-
-    /* random seed */
-    srand((unsigned int)time(NULL));
-    ITER(2, rand_block());
-    draw_grid();
-
-    /* store term settings so we can restore on exit */
-    tcgetattr(STDIN_FILENO, &sattr);
-    atexit(reset_term);
-
-    /* alters terminal stdin to not echo and doesn't need \n before reading getchar */
-    struct termios tattr;
-    tcgetattr(STDIN_FILENO, &tattr);
-    tattr.c_lflag &= ~(ICANON | ECHO);
-    tcsetattr(STDOUT_FILENO, TCSANOW, &tattr);
-
-    int key, moved;
-    while (1) {
-        /* will goto this if we didn't get a valid keypress */
-        retry:;
-        moved = 0;
-        key = getchar();
-        sl = 0;
-
-        /* should check if anything changed during merge and if not retry */
-        switch (key) {
-            case 'h':
-            case 'a':
-                moved = TURN(DIR_LEFT);
-                break;
-            case 'l':
-            case 'd':
-                moved = TURN(DIR_RIGHT);
-                break;
-            case 'j':
-            case 's':
-                moved = TURN(DIR_DOWN);
-                break;
-            case 'k':
-            case 'w':
-                moved = TURN(DIR_UP);
-                break;
-            case 'q':
-                save_score();
-                exit(EXIT_SUCCESS);
-            default:
-                goto retry;
-        }
-        
-        if (!moves_available()) {
-            printf("\n"
-                   "YOU LOSE! - Your score was %d\n", s);
-            save_score();
-            exit(EXIT_SUCCESS);
-        }
-
-        if (moved) {
-            ITER(n_blocks, rand_block());
-            draw_grid();
-        }
-    }
-}

src/highscore_file.c

@@ -1,29 +0,0 @@
-#include "2048.h"
-
-#include <stdlib.h>
-#include <sys/stat.h>
-#include <string.h>
-#include <stdio.h>
-
-const char* get_highscore_file() {
-    static char buffer[4096];
-    if (getenv("XDG_DATA_HOME") != NULL) {
-        snprintf(buffer, sizeof(buffer), "%s/%s/%s", getenv("XDG_DATA_HOME"), DATADIR_NAME, HIGHSCORE_FILE_NAME);
-    } else if (getenv("HOME") != NULL) {
-        snprintf(buffer, sizeof(buffer), "%s/.local/share/%s/%s", getenv("HOME"), DATADIR_NAME, HIGHSCORE_FILE_NAME);
-    } else {
-        return HIGHSCORE_FILE_NAME;
-    }
-
-    // create hierarrchy of directories up to highscore file location
-    char* sep = strrchr(buffer, '/');
-    while (sep != NULL) {
-        *sep = '\0';
-        if (strlen(buffer) != 0)
-            mkdir(buffer, 0777);
-        char* tmpsep = sep;
-        sep = strrchr(buffer, '/');
-        *tmpsep = '/';
-    }
-    return buffer;
-}