4 #include <stddef.h> /* NULL */
5 #include <stdint.h> /* uint8_t, uint16_t, uint32_t */
6 #include <stdio.h> /* FILE, sprintf(), fflush() */
7 #include <stdlib.h> /* free() */
8 #include <string.h> /* strlen(), strcmp() strncmp(), atoi() */
9 #include <unistd.h> /* access() */
10 #include "../common/readwrite.h" /* try_fopen(), try_fcose(), try_fwrite(),
11 * try_fgets(), try_fclose_unlink_rename(),
12 * textfile_width(), try_fputc()
14 #include "../common/rexit.h" /* exit_trouble(), exit_err() */
15 #include "ai.h" /* ai() */
16 #include "cleanup.h" /* unset_cleanup_flag() */
17 #include "init.h" /* remake_world() */
18 #include "io.h" /* io_round() */
19 #include "map_object_actions.h" /* get_moa_id_by_name() */
20 #include "map_objects.h" /* struct MapObj, get_player() */
21 #include "world.h" /* global world */
25 /* Run the game world and its inhabitants (and their actions) until the player
26 * avatar is free to receive new commands (or is dead).
28 static void turn_over();
30 /* If "msg"'s first part matches "command_name", set player's MapObj's .command
31 * to the command's id and its .arg to a numerical value following in the latter
32 * part of "msg" (if no digits are found, use 0); then finish player's turn and
33 * turn game over to the NPCs via turn_over(); then return 1. Else, return 0.
35 static uint8_t apply_player_command(char * msg, char * command_name);
37 /* Compares first line of file at world.path_out to world.server_test, aborts if
38 * they don't match, but not before unsetting the flags deleting files in the
39 * server directory, for in that case those must be assumed to belong to another
42 static void server_test();
46 static void turn_over()
48 struct MapObj * player = get_player();
49 struct MapObj * map_object = player;
50 uint16_t start_turn = world.turn;
51 while ( 0 < player->lifepoints
52 || (0 == player->lifepoints && start_turn == world.turn))
54 if (NULL == map_object)
57 map_object = world.map_objs;
59 if (0 < map_object->lifepoints)
61 if (0 == map_object->command)
63 if (map_object == player)
69 map_object->progress++;
70 struct MapObjAct * moa = world.map_obj_acts;
71 while (moa->id != map_object->command)
75 if (map_object->progress == moa->effort)
77 moa->func(map_object);
78 map_object->command = 0;
79 map_object->progress = 0;
82 map_object = map_object->next;
88 static uint8_t apply_player_command(char * msg, char * command_name)
90 if (!strncmp(msg, command_name, strlen(command_name)))
92 struct MapObj * player = get_player();
93 player->arg = atoi(&(msg[strlen(command_name)]));
94 player->command = get_moa_id_by_name(command_name);
103 static void server_test()
105 char * f_name = "server_test()";
106 char test[10 + 1 + 10 + 1 + 1];
107 FILE * file = try_fopen(world.path_out, "r", f_name);
108 try_fgets(test, 10 + 10 + 1 + 1, file, f_name);
109 try_fclose(file, f_name);
110 if (strcmp(test, world.server_test))
112 unset_cleanup_flag(CLEANUP_WORLDSTATE);
113 unset_cleanup_flag(CLEANUP_OUT);
114 unset_cleanup_flag(CLEANUP_IN);
115 char * msg = "Server test string in server output file does not match. "
116 "This indicates that the current server process has been "
117 "superseded by another one.";
124 extern void obey_msg(char * msg, uint8_t do_record)
126 char * f_name = "obey_msg()";
127 if ( apply_player_command(msg, "wait") /* TODO: Check for non-error */
128 || apply_player_command(msg, "move") /* return value of a modified */
129 || apply_player_command(msg, "pick_up")/* get_moa_id_by_name(); if id */
130 || apply_player_command(msg, "drop") /* found, execute on it what's */
131 || apply_player_command(msg, "use")); /* in apply_player_command(). */
134 char * seed_command = "seed";
135 if (!strncmp(msg, seed_command, strlen(seed_command)))
137 remake_world(atoi(&(msg[strlen(seed_command)])));
142 char path_tmp[strlen(world.path_record) + strlen(world.tmp_suffix) + 1];
143 sprintf(path_tmp, "%s%s", world.path_record, world.tmp_suffix);
144 FILE * file_tmp = try_fopen(path_tmp, "w", f_name);
145 if (!access(world.path_record, F_OK))
147 FILE * file_read = try_fopen(world.path_record, "r", f_name);
148 uint32_t linemax = textfile_width(file_read);
149 char line[linemax + 1];
150 while (try_fgets(line, linemax + 1, file_read, f_name))
152 try_fwrite(line, strlen(line), 1, file_tmp, f_name);
154 try_fclose(file_read, f_name);
156 try_fwrite(msg, strlen(msg), 1, file_tmp, f_name);
157 try_fputc('\n', file_tmp, f_name);
158 try_fclose_unlink_rename(file_tmp, path_tmp, world.path_record, f_name);
164 extern uint8_t io_loop()
166 char * f_name = "io_loop()";
170 char * msg = io_round();
175 if (world.is_verbose)
177 exit_trouble(-1 == printf("Input: %s\n", msg), f_name, "printf()");
179 if (!strcmp("QUIT", msg))
184 if (!strcmp("PING", msg))
187 char * pong = "PONG\n";
188 try_fwrite(pong, strlen(pong), 1, world.file_out, f_name);
189 fflush(world.file_out);