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[plomrogue] / src / server / run.c
index ec018c594e1fbd5659863f84fa0171c04070e503..394081c74d7190f3a3b3c4546384a8f92e231cb8 100644 (file)
@@ -4,7 +4,7 @@
 #include "run.h"
 #include <stddef.h> /* NULL */
 #include <stdint.h> /* uint8_t, uint16_t, uint32_t */
-#include <stdio.h> /* FILE, sprintf(), fflush() */
+#include <stdio.h> /* FILE, printf(), fflush() */
 #include <stdlib.h> /* free(), atoi() */
 #include <string.h> /* strlen(), strcmp() strncmp(), strdup() */
 #include <unistd.h> /* access() */
                                    * err_line()
                                    */
 #include "../common/readwrite.h" /* try_fopen(), try_fcose(), try_fwrite(),
-                                  * try_fgets(), try_fclose_unlink_rename(),
-                                  * textfile_width(), try_fputc()
+                                  * try_fgets(), textfile_width(), try_fputc()
                                   */
 #include "../common/rexit.h" /* exit_trouble(), exit_err() */
+#include "../common/try_malloc.h" /* try_malloc() */
 #include "ai.h" /* ai() */
 #include "cleanup.h" /* set_cleanup_flag(), unset_cleanup_flag() */
 #include "field_of_view.h" /* build_fov_map() */
@@ -27,7 +27,7 @@
 #include "things.h" /* Thing, get_thing(), own_thing(), add_thing(),
                      * get_thing_action_id_by_name(), get_player()
                      */
-#include "world.h" /* global world */
+#include "world.h" /* world */
 
 
 
@@ -52,8 +52,23 @@ static uint8_t parse_do_fov(char * tok0, char * tok1);
 /* Parse/apply god command in "tok0"/"tok1" manipulating a thing's state. */
 static uint8_t parse_thing_manipulation(char * tok0, char * tok1);
 
-/* Parse player command in "tok0"/"tok1" to action in player thing. */
-static uint8_t parse_player_command(char * tok0, char * tok1);
+/* Parse player command "tok0" with no argument to player action, comment on
+ * invalidity of non-zero "tok1" (but do not abort in that case).
+ */
+static uint8_t parse_player_command_0arg(char * tok0, char * tok1);
+
+/* If "string" and "comparand" match in string, set "c_to_set" to value."  */
+static uint8_t set_char_by_string_comparison(char * string, char * comparand,
+                                             char * c_to_set, char value);
+
+/* Parse player command "tok0" with one argument "tok1" to player action. */
+static uint8_t parse_player_command_1arg(char * tok0, char * tok1);
+
+/* Parse/apply commadn "tok0" with argument "tok1" and test the line for further
+ * tokens, commenting on their invalidity (but don't abort on findingthem).
+ */
+static uint8_t parse_command_1arg(char * tok0, char * tok1);
+
 
 /* Compares first line of server out file to world.server_test, aborts if they
  * don't match, but not before unsetting the flags deleting files in the server
@@ -77,7 +92,7 @@ static uint8_t do_fov = 0;
 static uint8_t parse_carry(char * tok0, char * tok1, struct Thing * t)
 {
     uint8_t id;
-    if (parse_val(tok0, tok1, s[CMD_CARRIES], '8', (char *) &id))
+    if (parse_val(tok0, tok1, s[S_CMD_CARRIES], '8', (char *) &id))
     {
         if (!err_line(id == t->id, "Thing cannot carry itself."))
         {
@@ -98,11 +113,11 @@ static uint8_t parse_carry(char * tok0, char * tok1, struct Thing * t)
 static uint8_t parse_position(char* tok0, char * tok1, struct Thing * t)
 {
     char axis = 0;
-    if      (!strcmp(tok0, s[CMD_POS_Y]))
+    if      (!strcmp(tok0, s[S_CMD_POS_Y]))
     {
         axis = 'y';
     }
-    else if (!strcmp(tok0, s[CMD_POS_X]))
+    else if (!strcmp(tok0, s[S_CMD_POS_X]))
     {
         axis = 'x';
     }
@@ -121,7 +136,7 @@ static uint8_t parse_position(char* tok0, char * tok1, struct Thing * t)
                 t->pos.x = length;
             }
             free(t->fov_map);
-            t->fov_map = do_fov && t->lifepoints ? build_fov_map(t) : t->fov_map;
+            t->fov_map= do_fov && t->lifepoints ? build_fov_map(t) : t->fov_map;
         }
         return 1;
     }
@@ -133,7 +148,7 @@ static uint8_t parse_position(char* tok0, char * tok1, struct Thing * t)
 static uint8_t parse_thing_type(char * tok0, char * tok1, struct Thing * t)
 {
     uint8_t type;
-    if (parse_val(tok0, tok1, s[CMD_TYPE], '8', (char *) &type))
+    if (parse_val(tok0, tok1, s[S_CMD_TYPE], '8', (char *) &type))
     {
         struct ThingType * tt = world.thing_types;
         for (; NULL != tt && type != tt->id; tt = tt->next);
@@ -151,7 +166,7 @@ static uint8_t parse_thing_type(char * tok0, char * tok1, struct Thing * t)
 static uint8_t parse_thing_command(char * tok0, char * tok1, struct Thing * t)
 {
     uint8_t command;
-    if (parse_val(tok0, tok1, s[CMD_COMMAND], '8', (char *) &command))
+    if (parse_val(tok0, tok1, s[S_CMD_COMMAND], '8', (char *) &command))
     {
         if (!command)
         {
@@ -173,7 +188,7 @@ static uint8_t parse_thing_command(char * tok0, char * tok1, struct Thing * t)
 
 static uint8_t parse_do_fov(char * tok0, char * tok1)
 {
-    if (parse_val(tok0, tok1, s[CMD_DO_FOV], '8', (char *) &do_fov))
+    if (parse_val(tok0, tok1, s[S_CMD_DO_FOV], '8', (char *) &do_fov))
     {
         if (do_fov)
         {
@@ -196,20 +211,20 @@ static uint8_t parse_thing_manipulation(char * tok0, char * tok1)
     static struct Thing * t = NULL;
     if (t && (   parse_thing_type(tok0, tok1, t)
               || parse_thing_command(tok0, tok1, t)
-              || parse_val(tok0, tok1, s[CMD_ARGUMENT], '8', (char *) &t->arg)
-              || parse_val(tok0, tok1, s[CMD_PROGRESS], '8', (char *) &t->progress)
-
-              || parse_val(tok0, tok1, s[CMD_LIFEPOINTS],'8',(char *) &t->lifepoints)
+              || parse_val(tok0, tok1, s[S_CMD_ARGUMENT], '8', (char *)&t->arg)
+              || parse_val(tok0,tok1,s[S_CMD_PROGRESS],'8',(char *)&t->progress)
+              || parse_val(tok0, tok1, s[S_CMD_LIFEPOINTS], '8',
+                                                        (char *) &t->lifepoints)
               || parse_position(tok0, tok1, t)
               || parse_carry(tok0, tok1, t)));
-    else if (parse_val(tok0, tok1, s[CMD_THING], '8', (char *) &id))
+    else if (parse_val(tok0, tok1, s[S_CMD_THING], '8', (char *) &id))
     {
         t = get_thing(world.things, id, 1);
         if (!t)
         {
             t = add_thing(id, 0, 0);
             set_cleanup_flag(CLEANUP_THINGS);
-            t->fov_map = do_fov && t->lifepoints ? build_fov_map(t) : t->fov_map;
+            t->fov_map= do_fov && t->lifepoints ? build_fov_map(t) : t->fov_map;
         }
     }
     else
@@ -221,22 +236,93 @@ static uint8_t parse_thing_manipulation(char * tok0, char * tok1)
 
 
 
-static uint8_t parse_player_command(char * tok0, char * tok1)
+static uint8_t parse_player_command_0arg(char * tok0, char * tok1)
 {
     struct Thing * player = get_player();
-    if (   parse_val(tok0, tok1, s[CMD_WAIT], '8', (char *) &player->arg)
-        || parse_val(tok0, tok1, s[CMD_MOVE], '8', (char *) &player->arg)
-        || parse_val(tok0, tok1, s[CMD_PICKUP], '8', (char *) &player->arg)
-        || parse_val(tok0, tok1, s[CMD_DROP], '8', (char *) &player->arg)
-        || parse_val(tok0, tok1, s[CMD_USE], '8', (char *) &player->arg))
+    if (!strcmp(tok0, s[S_CMD_WAIT]) || !strcmp(tok0, s[S_CMD_PICKUP]))
     {
         player->command = get_thing_action_id_by_name(tok0);
+        player->arg = 0;
         turn_over();
+        err_line (NULL != tok1, "No arguments expected, ignoring arguments.");
+        return 1;
+    }
+    return 0;
+}
+
+
+
+static uint8_t set_char_by_string_comparison(char * string, char * comparand,
+                                             char * c_to_set, char value)
+{
+    if (!strcmp(string, comparand))
+    {
+        * c_to_set = value;
+        return 1;
+    }
+    return 0;
+}
+
+
+
+static uint8_t parse_player_command_1arg(char * tok0, char * tok1)
+{
+    struct Thing * player = get_player();
+    if (
+           parse_val(tok0, tok1, s[S_CMD_DROP], '8', (char *) &player->arg)
+        || parse_val(tok0, tok1, s[S_CMD_USE], '8', (char *) &player->arg))
+    {
+        player->command = get_thing_action_id_by_name(tok0);
+        turn_over();
+    }
+    else if (!strcmp(tok0, s[S_CMD_MOVE]))
+    {
+        char dir = '\0';
+        if (!(   set_char_by_string_comparison(tok1, "east",       &dir, 'd')
+              || set_char_by_string_comparison(tok1, "south-east", &dir, 'c')
+              || set_char_by_string_comparison(tok1, "south-west", &dir, 'x')
+              || set_char_by_string_comparison(tok1, "west",       &dir, 's')
+              || set_char_by_string_comparison(tok1, "north-west", &dir, 'w')
+              || set_char_by_string_comparison(tok1, "north-east", &dir, 'e')))
+        {
+            return 0;
+        }
+        player->arg = dir;
+        player->command = get_thing_action_id_by_name(tok0);
+        turn_over();
+    }
+    else
+    {
+        return 0;
+    }
+    return 1;
+}
+
+
+
+static uint8_t parse_command_1arg(char * tok0, char * tok1)
+{
+    char * tok2 = token_from_line(NULL);
+    if (   parse_thing_manipulation(tok0, tok1)
+        || parse_player_command_1arg(tok0, tok1)
+        || parse_val(tok0, tok1, s[S_CMD_SEED_RAND], 'U', (char *) &world.seed)
+        || parse_val(tok0, tok1, s[S_CMD_TURN], 'u', (char *) &world.turn)
+        || parse_do_fov(tok0, tok1));
+    else if (parse_val(tok0,tok1,s[S_CMD_SEED_MAP],'U',(char *)&world.seed_map))
+
+    {
+        remake_map();
+    }
+    else if (parse_val(tok0, tok1, s[S_CMD_MAKE_WORLD],'U',(char *)&world.seed))
+    {
+        remake_world();
     }
     else
     {
         return 0;
     }
+    char * err = "But one argument expected, ignoring further arguments.";
+    err_line (NULL != tok2, err);
     return 1;
 }
 
@@ -246,7 +332,7 @@ static void server_test()
 {
     char * f_name = "server_test()";
     char test[10 + 1 + 10 + 1 + 1];
-    FILE * file = try_fopen(s[PATH_OUT], "r", f_name);
+    FILE * file = try_fopen(s[S_PATH_OUT], "r", f_name);
     try_fgets(test, 10 + 10 + 1 + 1, file, f_name);
     try_fclose(file, f_name);
     if (strcmp(test, world.server_test))
@@ -308,23 +394,23 @@ static void turn_over()
 static void record_msg(char * msg)
 {
     char * f_name = "record_msg()";
-    char path_tmp[strlen(s[PATH_RECORD]) + strlen(s[PATH_SUFFIX_TMP]) + 1];
-    sprintf(path_tmp, "%s%s", s[PATH_RECORD], s[PATH_SUFFIX_TMP]);
-    FILE * file_tmp  = try_fopen(path_tmp, "w", f_name);
-    if (!access(s[PATH_RECORD], F_OK))
+    char * path_tmp;
+    FILE * file_tmp = atomic_write_start(s[S_PATH_RECORD], &path_tmp);
+    if (!access(s[S_PATH_RECORD], F_OK))
     {
-        FILE * file_read = try_fopen(s[PATH_RECORD], "r", f_name);
+        FILE * file_read = try_fopen(s[S_PATH_RECORD], "r", f_name);
         uint32_t linemax = textfile_width(file_read);
-        char line[linemax + 1];
+        char * line = try_malloc(linemax + 1, f_name);
         while (try_fgets(line, linemax + 1, file_read, f_name))
         {
             try_fwrite(line, strlen(line), 1, file_tmp, f_name);
         }
+        free(line);
         try_fclose(file_read, f_name);
     }
     try_fwrite(msg, strlen(msg), 1, file_tmp, f_name);
     try_fputc('\n', file_tmp, f_name);
-    try_fclose_unlink_rename(file_tmp, path_tmp, s[PATH_RECORD], f_name);
+    atomic_write_finish(file_tmp, s[S_PATH_RECORD], path_tmp);
 }
 
 
@@ -334,39 +420,24 @@ extern void obey_msg(char * msg, uint8_t do_record)
     set_err_line_options("Trouble with message: ", msg, 0, 0);
     char * msg_copy = strdup(msg);
     char * tok0 = token_from_line(msg_copy);
-    char * tok1 = token_from_line(NULL);
-    char * tok2 = token_from_line(NULL);
-    if (err_line(!(tok0 && tok1) || tok2, "Bad number of tokens."))
+    if (NULL != tok0)
     {
-        return;
-    }
-    if (   parse_thing_manipulation(tok0, tok1)
-        || parse_player_command(tok0, tok1)
-        || parse_val(tok0, tok1, s[CMD_SEED_RAND], 'U', (char *) &world.seed)
-        || parse_val(tok0, tok1, s[CMD_TURN], 'u', (char *) &world.turn)
-        || parse_do_fov(tok0, tok1));
-    else if (parse_val(tok0, tok1, s[CMD_SEED_MAP], 'U', (char *) &world.seed_map))
-
-    {
-        remake_map();
-    }
-    else if (parse_val(tok0, tok1, s[CMD_MAKE_WORLD], 'U', (char *) &world.seed))
-    {
-        remake_world();
-    }
-    else
-    {
-        err_line(1, "Unknown command.");
-        free(msg_copy);
-        return;
+        char * tok1 = token_from_line(NULL);
+        if (    parse_player_command_0arg(tok0, tok1)
+            || (tok1 && parse_command_1arg(tok0, tok1)))
+        {
+            world.do_update = 1;
+            if (do_record)
+            {
+                save_world();
+                record_msg(msg);
+            }
+            free(msg_copy);
+            return;
+        }
     }
-    world.last_update_turn = 0;
+    err_line(1, "Unknown command or bad number of tokens.");
     free(msg_copy);
-    if (do_record)
-    {
-        save_world();
-        record_msg(msg);
-    }
 }