+++ /dev/null
-/* src/server/run.c
- *
- * This file is part of PlomRogue. PlomRogue is licensed under the GPL version 3
- * or any later version. For details on its copyright, license, and warranties,
- * see the file NOTICE in the root directory of the PlomRogue source package.
- */
-
-#define _POSIX_C_SOURCE 200809L /* strdup() */
-#include "run.h"
-#include <stddef.h> /* NULL */
-#include <stdint.h> /* uint8_t, uint16_t, uint32_t, int16_t */
-#include <stdio.h> /* FILE, printf(), fflush() */
-#include <stdlib.h> /* atoi(), free() */
-#include <string.h> /* strlen(), strcmp(), strncmp(), strdup() */
-#include <time.h> /* time_t, time() */
-#include <unistd.h> /* access() */
-#include "../common/parse_file.h" /* set_err_line_options(), token_from_line(),
- * err_line(), err_line_inc(), parse_val(),
- * parestest_int()
- */
-#include "../common/readwrite.h" /* try_fopen(), try_fcose(), try_fwrite(),
- * try_fgets(), textfile_width(), try_fputc(),
- * atomic_write_finish(), build_temp_path()
- */
-#include "../common/rexit.h" /* exit_trouble(), exit_err() */
-#include "../common/try_malloc.h" /* try_malloc() */
-#include "ai.h" /* ai() */
-#include "cleanup.h" /* unset_cleanup_flag() */
-#include "field_of_view.h" /* update_map_memory() */
-#include "god_commands.h" /* parse_god_command_(1|2|3)arg() */
-#include "hardcoded_strings.h" /* s */
-#include "io.h" /* io_round(), save_world() */
-#include "thing_actions.h" /* hunger(), try_healing() */
-#include "things.h" /* Thing, ThingType, ThingInMemory, get_player(),
- * get_thing_action_id_by_name(), try_thing_proliferation()
- */
-#include "world.h" /* world */
-
-
-
-/* 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);
-
-/* Return 1 on world.exists, else 0 and err_line() appropriate error message. */
-static uint8_t player_commands_allowed();
-
-/* Parse player commands "tok0" with optional argument "tok1" to player action.
- * Return 1 on success, 0 on failure.
- */
-static uint8_t parse_player_command_0arg(char * tok0);
-static uint8_t parse_player_command_1arg(char * tok0, char * tok1);
-
-/* Parse/apply (non-)meta command "tok0" (read further tokens as necessary).
- * Return 0 on failure, 1 on success, 2 on QUIT meta command.
- */
-static uint8_t parse_command_nonmeta(char * tok0);
-static uint8_t parse_command_meta(char * tok0);
-
-/* Compare 1st line of server out file to world.server_test, abort if they don't
- * match, but not before unsetting flags deleting files in the server directory,
- * for in that case those must be assumed to belong to another server process.
- */
-static void server_test();
-
-/* Return array of IDs of non-owned things in game world, ended by non-ID -1. */
-static int16_t * build_whitelist();
-
-/* Return 1 if value of "id" appears in "whitelist", else 0. */
-static uint8_t thing_in_whitelist(uint8_t id, int16_t * whitelist);
-
-/* Run the game world and its inhabitants (and their actions) until the player
- * avatar is free to receive new commands (or is dead). Only actions and
- * proliferations for non-owned things are performed that exist at the start of
- * the turn jumped into, or started anew by the cycle.
- */
-static void turn_over();
-
-
-
-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 player_commands_allowed()
-{
- if (!world.exists)
- {
- return !err_line(1, "No world exists in which to run player commands.");
- }
- return 1;
-}
-
-
-
-static uint8_t parse_player_command_0arg(char * tok0)
-{
- struct Thing * player = get_player();
- if ( !strcmp(tok0, s[S_CMD_WAIT]) || !strcmp(tok0, s[S_CMD_PICKUP])
- || !strcmp(tok0, s[S_CMD_AI]))
- {
- if (player_commands_allowed())
- {
- if (!strcmp(tok0, s[S_CMD_AI]))
- {
- ai(player);
- }
- else
- {
- player->command = get_thing_action_id_by_name(tok0);
- }
- turn_over();
- }
- 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_commands_allowed())
- {
- player->command = get_thing_action_id_by_name(tok0);
- turn_over();
- }
- else if (!strcmp(tok0, s[S_CMD_MOVE]) && player_commands_allowed())
- {
- 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_nonmeta(char * tok0)
-{
- if (parse_player_command_0arg(tok0))
- {
- return 1;
- }
- else
- {
- char * tok1 = token_from_line(NULL);
- if (tok1 && ( parse_player_command_1arg(tok0, tok1)
- || parse_god_command_1arg(tok0, tok1)))
- {
- return 1;
- }
- else
- {
- char * tok2 = token_from_line(NULL);
- if (tok2 && parse_god_command_2arg(tok0, tok1, tok2))
- {
- return 1;
- }
- else
- {
- char * tok3 = token_from_line(NULL);
- if (tok2 && parse_god_command_3arg(tok0, tok1, tok2, tok3))
- {
- return 1;
- }
- }
- }
- }
- return 0;
-}
-
-
-
-static uint8_t parse_command_meta(char * tok0)
-{
- if (!strcmp("QUIT", tok0))
- {
- return 2;
- }
- if (!strcmp("PING", tok0))
- {
- send_to_outfile("PONG\n", 1);
- return 1;
- }
- if (!strcmp("THINGS_HERE", tok0))
- {
- char * tok1 = token_from_line(NULL);
- char * tok2 = token_from_line(NULL);
- if (tok1&&tok2 && !parsetest_int(tok1, '8')&&!parsetest_int(tok2, '8'))
- {
- if (!world.exists)
- {
- err_line(1, "Command only works on existing worlds.");
- return 0;
- }
- send_to_outfile("THINGS_HERE START\n", 1);
- struct Thing * player = get_player();
- if (player->fov_map &&
- 'v' == player->fov_map[atoi(tok1)*world.map.length+atoi(tok2)])
- {
- struct Thing * t;
- for (t = world.things; t; t = t->next)
- {
- if (t->pos.y == atoi(tok1) && t->pos.x == atoi(tok2))
- {
- struct ThingType * tt = get_thing_type(t->type);
- send_to_outfile(tt->name, 0);
- send_to_outfile("\n", 1);
- }
- }
- }
- else
- {
- struct ThingInMemory * t_mem;
- for (t_mem = player->t_mem; t_mem; t_mem = t_mem->next)
- {
- if (t_mem->pos.y == atoi(tok1) && t_mem->pos.x == atoi(tok2))
- {
- struct ThingType * tt = get_thing_type(t_mem->type);
- send_to_outfile(tt->name, 0);
- send_to_outfile("\n", 1);
- }
- }
- }
- send_to_outfile("THINGS_HERE END\n", 1);
- return 1;
- }
- }
- return 0;
-}
-
-
-
-static void server_test()
-{
- char test[10 + 1 + 10 + 1 + 1];
- FILE * file = try_fopen(s[S_PATH_OUT], "r", __func__);
- try_fgets(test, 10 + 10 + 1 + 1, file, __func__);
- try_fclose(file, __func__);
- if (strcmp(test, world.server_test))
- {
- unset_cleanup_flag(CLEANUP_WORLDSTATE);
- unset_cleanup_flag(CLEANUP_OUT);
- unset_cleanup_flag(CLEANUP_IN);
- char * msg = "Server test string in server output file does not match. "
- "This indicates that the current server process has been "
- "superseded by another one.";
- exit_err(1, msg);
- }
-}
-
-
-
-static int16_t * build_whitelist()
-{
- uint16_t i_things = NULL != world.things;
- struct Thing * t = world.things;
- for (; t; t = t->next, i_things++);
- int16_t * whitelist = try_malloc(i_things * sizeof(int16_t), __func__);
- for (i_things = 0, t = world.things; t;
- whitelist[i_things] = t->id, t = t->next, i_things++);
- whitelist[i_things] = -1;
- return whitelist;
-}
-
-
-
-static uint8_t thing_in_whitelist(uint8_t id, int16_t * whitelist)
-{
- uint16_t i;
- for (i = 0; -1 < whitelist[i]; i++)
- {
- if ((int16_t) id == whitelist[i])
- {
- return 1;
- }
- }
- return 0;
-}
-
-
-
-static void turn_over()
-{
- struct Thing * player = get_player();
- struct Thing * thing = player;
- int16_t * whitelist = build_whitelist();
- while (0 < player->lifepoints)
- {
- if (!thing)
- {
- world.turn++;
- thing = world.things;
- free(whitelist);
- whitelist = build_whitelist();/* The whitelist excludes things */
- } /* that appear only during the turn.*/
- if (thing_in_whitelist(thing->id, whitelist))
- {
- if (0 < thing->lifepoints)
- {
- if (0 == thing->command)
- {
- update_map_memory(thing, 1);
- if (thing == player)
- {
- break;
- }
- ai(thing);
- }
- try_healing(thing);
- thing->progress++;
- struct ThingAction * ta = get_thing_action(thing->command);
- if (thing->progress == ta->effort)
- {
- ta->func(thing);
- thing->command = 0;
- thing->progress = 0;
- }
- hunger(thing);
- }
- try_thing_proliferation(thing);
- }
- thing = thing->next;
- }
- free(whitelist);
-}
-
-
-
-extern void send_to_outfile(char * answer, uint8_t flush)
-{
- try_fwrite(answer, strlen(answer), 1, world.file_out, __func__);
- if (flush)
- {
- fflush(world.file_out);
- }
-}
-
-
-
-extern void record(char * msg, uint8_t force)
-{
- static FILE * file_tmp = NULL;
- static time_t save_wait = 0;
- static char * path_tmp;
- if (!file_tmp)
- {
- path_tmp = build_temp_path(s[S_PATH_RECORD]);
- file_tmp = try_fopen(path_tmp, "w", __func__);
- if (!access(s[S_PATH_RECORD], F_OK))
- {
- FILE * file_read = try_fopen(s[S_PATH_RECORD], "r", __func__);
- uint32_t linemax = textfile_width(file_read);
- char * line = try_malloc(linemax + 1, __func__);
- while (try_fgets(line, linemax + 1, file_read, __func__))
- {
- try_fwrite(line, strlen(line), 1, file_tmp, __func__);
- }
- free(line);
- try_fclose(file_read, __func__);
- }
- }
- if (msg)
- {
- try_fwrite(msg, strlen(msg), 1, file_tmp, __func__);
- try_fputc('\n', file_tmp, __func__);
- }
- if (force || time(NULL) > save_wait + 15)
- {
- save_wait = time(NULL);
- save_world();
- atomic_write_finish(file_tmp, s[S_PATH_RECORD], path_tmp);
- file_tmp = NULL;
- }
-}
-
-
-
-extern uint8_t obey_msg(char * msg, uint8_t obey_state)
-{
- if (world.is_verbose)
- {
- exit_trouble(-1 == printf("Input: %s\n", msg), __func__, "printf");
- }
- set_err_line_options("Trouble with message: ", msg, 0);
- char * msg_copy = strdup(msg);
- char * tok0 = token_from_line(msg_copy);
- uint8_t ret = 0;
- if (tok0)
- {
- ret = parse_command_meta(tok0);
- if (ret || (obey_state < 2 && parse_command_nonmeta(tok0)))
- {
- if (!ret)
- {
- if (world.exists)
- {
- world.do_update = 1;
- }
- if (1 == obey_state)
- {
- record(msg, 0);
- }
- }
- char * tokplus = token_from_line(NULL);
- err_line(!(!tokplus), "Too many arguments, ignoring overflow.");
- }
- else if (world.replay)
- {
- ret = 3;
- }
- else if (!world.replay)
- {
- err_line(1, "Invalid command/argument or bad number of tokens.");
- }
- }
- free(msg_copy);
- return ret;
-}
-
-
-
-extern uint8_t io_loop(uint8_t obey_state)
-{
- while (1)
- {
- char * msg = io_round();
- server_test();
- if (msg)
- {
- uint8_t ret = obey_msg(msg, obey_state);
- free(msg);
- if ( (!world.replay && 2 == ret)
- || ( world.replay && 2 <= ret))
- {
- return ret;
- }
- }
- }
-}
projects / plomrogue / blobdiff