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Player earns a score by killing enemies.
[plomrogue] / src / main.c
index 3ca00e70cda19aef478759e409b58cfca4ad1f85..f8118674616aed8195a50e6502749b4ed107e11b 100644 (file)
@@ -2,11 +2,12 @@
 
 #include "main.h"
 #include <stdlib.h> /* for atoi(), exit(), EXIT_FAILURE, calloc() */
-#include <stdio.h> /* for FILE typedef, F_OK */
+#include <stdio.h> /* for FILE typedef, F_OK, rename() */
 #include <ncurses.h> /* for initscr(), noecho(), curs_set(), keypad(), raw() */
 #include <time.h> /* for time() */
-#include <unistd.h> /* for getopt(), optarg */
+#include <unistd.h> /* for unlink(), getopt(), optarg */
 #include <stdint.h> /* for uint8_t */
+#include <errno.h> /* for errno */
 #include "windows.h" /* for structs WinMeta, Win, init_win(), init_win_meta(),
                       * draw_all_wins()
                       */
 int main(int argc, char *argv[])
 {
     struct World world;
+    char * recordfile = "record";
+    char * savefile = "savefile";
+    char * err_x = "A file 'record' exists, but no 'savefile'. If everything "
+                   "was in order, both or none would exist. I won't start "
+                   "until this is corrected.";
+    if (!access(recordfile, F_OK) && access(savefile, F_OK))
+    {
+        errno = 0;
+        exit_err(1, &world, err_x);
+    }
+    err_x        = "A 'savefile' exists, but no file 'record'. If everything "
+                   "was in order, both or none would exist. I won't start "
+                   "until this is corrected.";
+
+    if (!access(savefile, F_OK) && access(recordfile, F_OK))
+    {
+        errno = 0;
+        exit_err(1, &world, err_x);
+    }
+    char * recordfile_tmp = "record_tmp";
+    char * savefile_tmp   = "savefile_tmp";
+    err_x        = "A file 'recordfile_tmp' exists, probably from a corrupted "
+                   "previous record saving process. To avoid game record "
+                   "corruption, I won't start until it is removed or renamed.";
+    exit_err(!access(recordfile_tmp, F_OK), &world, err_x);
+    err_x        = "A file 'savefile_tmp' exists, probably from a corrupted "
+                   "previous game saving process. To avoid savegame "
+                   "corruption, I won't start until it is removed or renamed.";
+    exit_err(!access(savefile_tmp,   F_OK), &world, err_x);
 
     /* Read in startup options (i.e. replay option and replay start turn). */
     int opt;
@@ -63,13 +93,12 @@ int main(int argc, char *argv[])
     init_map_object_defs(&world, "defs");
 
     /* For interactive mode, try to load world state from savefile. */
-    char * err_o = "Error loading game: "
-                   "Unable to open 'savefile' for reading.";
-    char * err_r = "Error loading game: "
-                   "Trouble reading from opened 'savefile'.";
-    char * err_c = "Error loading game: "
-                   "Unable to close opened 'savefile'.";
-    char * savefile = "savefile";
+    char * err_o = "Trouble loading game (fopen() in main()) / "
+                   "opening 'savefile' for reading.";
+    char * err_r = "Trouble loading game (in main()) / "
+                   "reading from opened 'savefile'.";
+    char * err_c = "Trouble loading game (fclose() in main()) / "
+                   "closing opened 'savefile'.";
     FILE * file;
     if (1 == world.interactive && 0 == access(savefile, F_OK))
     {
@@ -77,6 +106,7 @@ int main(int argc, char *argv[])
         exit_err(0 == file, &world, err_o);
         if (   read_uint32_bigendian(file, &world.seed)
             || read_uint32_bigendian(file, &world.turn)
+            || read_uint16_bigendian(file, &world.score)
             || read_uint16_bigendian(file, &player.pos.y)
             || read_uint16_bigendian(file, &player.pos.x)
             || read_uint8(file, &player.hitpoints)
@@ -93,11 +123,10 @@ int main(int argc, char *argv[])
     /* For non-interactive mode, try to load world state from record file. */
     else
     {
-        err_o = "Error loading record file: "
-                "Unable to open file 'record' for reading.";
-        err_r = "Error loading record file: "
-                "Trouble reading from opened file 'record'.";
-        char * recordfile = "record";
+        err_o = "Trouble loading record file (fopen() in main()) / "
+                "opening file 'record' for reading.";
+        err_r = "Trouble loading record file (read_uint32_bigendian() in "
+                "main()) / reading from opened file 'record'.";
         world.turn = 1;
         if (0 == world.interactive)
         {
@@ -112,19 +141,17 @@ int main(int argc, char *argv[])
         else
         {
             world.seed = time(NULL);
+            world.score = 0;
 
-            char * err_x = "Error recording new seed: "
-                           "A file 'record' already exists, when it shouldn't.";
-            err_o        = "Error recording new seed: "
-                           "Unable to open 'record_tmp' file for writing.";
-            char * err_w = "Error recording new seed: "
-                           "Trouble writing to opened 'record_tmp' file.";
-            err_c        = "Error recording new seed: "
-                           "Unable to close opened file 'record_tmp'.";
-            char * err_m = "Error recording new seed: "
-                           "Unable to rename file 'record_tmp' to 'record'.";
-            char * recordfile_tmp = "record_tmp";
-            exit_err(!access(recordfile, F_OK), &world, err_x);
+            err_o        = "Trouble recording new seed (fopen() in main()) / "
+                           "opening 'record_tmp' file for writing.";
+            char * err_w = "Trouble recording new seed "
+                           "(write_uint32_bigendian() in main()) / writing to "
+                           "opened file 'record_tmp'.";
+            err_c        = "Trouble recording new seed (fclose() in main()) / "
+                           "closing opened file 'record_tmp'.";
+            char * err_m = "Trouble recording new seed (rename() in main()) : "
+                           "renaming file 'record_tmp' to 'record'.";
             file = fopen(recordfile_tmp, "w");
             exit_err(0 == file, &world, err_o);
             exit_err(write_uint32_bigendian(world.seed, file), &world, err_w);
@@ -161,11 +188,13 @@ int main(int argc, char *argv[])
     raw();
     init_keybindings(&world);
     set_cleanup_flag(CLEANUP_KEYBINDINGS);
-    struct WinMeta win_meta = init_win_meta(screen);
+    struct WinMeta win_meta;
+    char * err_winmem = "Trouble with init_win() or draw_all_wins() in main().";
+    exit_err(init_win_meta(screen, &win_meta), &world, err_winmem);
     struct Win win_keys = init_win(&win_meta, "Keys",
                                    0, 29, &world, draw_keys_win);
     struct Win win_info = init_win(&win_meta, "Info",
-                                   2, 20, &world, draw_info_win);
+                                   3, 20, &world, draw_info_win);
     uint16_t height_logwin = win_meta.padframe.size.y
                              - (2 + win_info.frame.size.y);
     struct Win win_log = init_win(&win_meta, "Log",
@@ -194,8 +223,8 @@ int main(int argc, char *argv[])
             }
             if (0 == start_turn)
             {
-                draw_all_wins (&win_meta);
-               key = getch();
+                exit_err(draw_all_wins(&win_meta), &world, err_winmem);
+                key = getch();
             }
             if (1 == await_actions
                 && (world.turn < start_turn
@@ -235,7 +264,8 @@ int main(int argc, char *argv[])
                                              &win_map, &win_info, &win_log);
                 if (1 == quit_called)
                 {
-                    err_c = "Error closing read 'record' file.";
+                    err_c = "Trouble closing 'record' file (fclose() in "
+                            "main()).";
                     exit_err(fclose(file), &world, err_c);
                     exit_game(&world);
                 }