-/* src/server/run.c */
+/* 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
+#define _POSIX_C_SOURCE 200809L /* strdup() */
#include "run.h"
#include <stddef.h> /* NULL */
-#include <stdint.h> /* uint8_t, uint16_t, uint32_t */
-#include <stdio.h> /* FILE, sprintf(), fflush() */
-#include <stdlib.h> /* free(), atoi() */
-#include <string.h> /* strlen(), strcmp() strncmp(), strdup() */
+#include <stdint.h> /* uint8_t, uint16_t, uint32_t, int16_t */
+#include <stdio.h> /* FILE, printf(), fflush() */
+#include <stdlib.h> /* 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(), err_line_inc(), parse_val()
*/
#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(),
+ * 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" /* set_cleanup_flag(), unset_cleanup_flag() */
-#include "field_of_view.h" /* build_fov_map() */
+#include "cleanup.h" /* unset_cleanup_flag() */
+#include "god_commands.h" /* parse_god_command_(1|2|3)arg() */
#include "hardcoded_strings.h" /* s */
-#include "init.h" /* remake_world() */
#include "io.h" /* io_round(), save_world() */
-#include "map.h" /* remake_map() */
-#include "thing_actions.h" /* ThingAction */
-#include "things.h" /* Thing, get_thing(), own_thing(), add_thing(),
- * get_thing_action_id_by_name(), get_player()
+#include "things.h" /* Thing, ThingType, get_thing_action_id_by_name(),
+ * get_player(), try_thing_proliferation()
*/
-#include "world.h" /* global world */
-
+#include "world.h" /* world */
-/* Parse/apply god command in "tok0"/"tok1" on "t" owning another thing. */
-static uint8_t parse_carry(char * tok0, char * tok1, struct Thing * t);
-/* Parse/apply god commansd in "tok0"/"tok1" on positioning a thing "t". */
-static uint8_t parse_position(char* tok0, char * tok1, struct Thing * t);
+/* 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/apply god command in "tok0"/"tok1" oo setting "t"'s thing type. */
-static uint8_t parse_thing_type(char * tok0, char * tok1, struct Thing * t);
+/* Return 1 on world.exists, else 0 and err_line() appropriate error message. */
+static uint8_t player_commands_allowed();
-/* Parse/apply god command in "tok0"/"tok1" on setting up thing "t". */
-static uint8_t parse_thing_command(char * tok0, char * tok1, struct Thing * t);
+/* Parse player command "tok0" with no argument to player action. */
+static uint8_t parse_player_command_0arg(char * tok0);
-/* Parse/apply god command on enabling/disabling generation of fields of view on
- * god commands that may affect them, via static global "do_fov". On enabling,
- * (re-)generate all animate things' fields of view.
- */
-static uint8_t parse_do_fov(char * tok0, char * tok1);
+/* Parse player command "tok0" with one argument "tok1" to player action. */
+static uint8_t parse_player_command_1arg(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/apply command "tok0" (read further tokens as necessary). */
+static uint8_t parse_command(char * tok0);
/* 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
*/
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).
+ * 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();
+/* Append "answer" to server output file, with instant fflush(). */
+static void answer_query(char * answer);
-
-/* Do god commands to create / position things generate their fields of view? */
-static uint8_t do_fov = 0;
+/* Try to read "msg" as meta command, act accordingly; on success, free it. */
+static uint8_t meta_commands(char * msg);
-static uint8_t parse_carry(char * tok0, char * tok1, struct Thing * t)
+static uint8_t set_char_by_string_comparison(char * string, char * comparand,
+ char * c_to_set, char value)
{
- uint8_t id;
- if (parse_val(tok0, tok1, s[CMD_CARRIES], '8', (char *) &id))
+ if (!strcmp(string, comparand))
{
- if (!err_line(id == t->id, "Thing cannot carry itself."))
- {
- struct Thing * o = get_thing(world.things, id, 0);
- if (!err_line(!o, "Thing cannot carry thing that does not exist."))
- {
- own_thing(&(t->owns), &world.things, id);
- o->pos = t->pos;
- }
- }
+ * c_to_set = value;
return 1;
}
return 0;
-static uint8_t parse_position(char* tok0, char * tok1, struct Thing * t)
+static uint8_t player_commands_allowed()
{
- char axis = 0;
- if (!strcmp(tok0, s[CMD_POS_Y]))
- {
- axis = 'y';
- }
- else if (!strcmp(tok0, s[CMD_POS_X]))
+ if (!world.exists)
{
- axis = 'x';
+ return !err_line(1, "No world exists in which to run player commands.");
}
- if (axis && !parsetest_int(tok1, '8'))
- {
- uint8_t length = atoi(tok1);
- char * err = "Position is outside of map.";
- if (!err_line(length >= world.map.length, err))
- {
- if ('y' == axis)
- {
- t->pos.y = length;
- }
- else if ('x' == axis)
- {
- t->pos.x = length;
- }
- free(t->fov_map);
- t->fov_map= do_fov && t->lifepoints ? build_fov_map(t) : t->fov_map;
- }
- return 1;
- }
- return 0;
-}
-
-
-
-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))
- {
- struct ThingType * tt = world.thing_types;
- for (; NULL != tt && type != tt->id; tt = tt->next);
- if (!err_line(!tt, "Thing type does not exist."))
- {
- t->type = type;
- }
- return 1;
- }
- return 0;
-}
-
-
-
-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 (!command)
- {
- t->command = command;
- return 1;
- }
- struct ThingAction * ta = world.thing_actions;
- for (; NULL != ta && command != ta->id; ta = ta->next);
- if (!err_line(!ta, "Thing action does not exist."))
- {
- t->command = command;
- }
- return 1;
- }
- return 0;
+ return 1;
}
-static uint8_t parse_do_fov(char * tok0, char * tok1)
+static uint8_t parse_player_command_0arg(char * tok0)
{
- if (parse_val(tok0, tok1, s[CMD_DO_FOV], '8', (char *) &do_fov))
+ 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 (do_fov)
+ if (player_commands_allowed())
{
- struct Thing * ti;
- for (ti = world.things; ti; ti = ti->next)
+ if (!strcmp(tok0, s[S_CMD_AI]))
+ {
+ ai(player);
+ }
+ else
{
- ti->fov_map = ti->lifepoints ? build_fov_map(ti) : ti->fov_map;
+ player->command = get_thing_action_id_by_name(tok0);
+ player->arg = 0;
}
+ turn_over();
}
return 1;
}
-static uint8_t parse_thing_manipulation(char * tok0, char * tok1)
+static uint8_t parse_player_command_1arg(char * tok0, char * tok1)
{
- uint8_t id;
- 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_position(tok0, tok1, t)
- || parse_carry(tok0, tok1, t)));
- else if (parse_val(tok0, tok1, s[CMD_THING], '8', (char *) &id))
+ 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())
{
- t = get_thing(world.things, id, 1);
- if (!t)
+ 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')))
{
- 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;
+ return 0;
}
+ player->arg = dir;
+ player->command = get_thing_action_id_by_name(tok0);
+ turn_over();
}
else
{
-static uint8_t parse_player_command(char * tok0, char * tok1)
+static uint8_t parse_command(char * tok0)
{
- 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 (parse_player_command_0arg(tok0))
{
- player->command = get_thing_action_id_by_name(tok0);
- turn_over();
+ return 1;
}
else
{
- return 0;
+ 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 1;
+ return 0;
}
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);
- try_fgets(test, 10 + 10 + 1 + 1, file, f_name);
- try_fclose(file, f_name);
+ 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);
+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;
uint16_t start_turn = world.turn;
+ int16_t * whitelist = build_whitelist();
while ( 0 < player->lifepoints
|| (0 == player->lifepoints && start_turn == world.turn))
- {
- if (NULL == thing)
+ { /* TODO: check meaning and refactorability of 2nd condition */
+ if (!thing)
{
world.turn++;
thing = world.things;
- }
- if (0 < thing->lifepoints)
+ 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->command)
+ if (0 < thing->lifepoints)
{
- if (thing == player)
+ if (0 == thing->command)
{
- break;
+ if (thing == player)
+ {
+ break;
+ }
+ ai(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;
}
- ai(thing);
- }
- thing->progress++;
- struct ThingAction * ta = world.thing_actions;
- while (ta->id != thing->command)
- {
- ta = ta->next;
- }
- if (thing->progress == ta->effort)
- {
- ta->func(thing);
- thing->command = 0;
- thing->progress = 0;
}
+ try_thing_proliferation(thing);
}
thing = thing->next;
}
+ free(whitelist);
+}
+
+
+
+static void answer_query(char * answer)
+{
+ try_fwrite(answer, strlen(answer), 1, world.file_out, __func__);
+ fflush(world.file_out);
}
-static void record_msg(char * msg)
+static uint8_t meta_commands(char * msg)
{
- char * f_name = "record_msg()";
- uint16_t size = strlen(s[PATH_RECORD]) + strlen(s[PATH_SUFFIX_TMP]) + 1;
- char * path_tmp = try_malloc(size, f_name);
- 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))
+ if (!strcmp("QUIT", msg))
{
- FILE * file_read = try_fopen(s[PATH_RECORD], "r", f_name);
- uint32_t linemax = textfile_width(file_read);
- char * line = try_malloc(linemax + 1, f_name);
- while (try_fgets(line, linemax + 1, file_read, f_name))
+ free(msg);
+ return 2;
+ }
+ if (!strcmp("PING", msg))
+ {
+ free(msg);
+ answer_query("PONG\n");
+ return 1;
+ }
+ if (!strcmp("STACK", msg))
+ {
+ free(msg);
+ answer_query("THINGS_BELOW_PLAYER START\n");
+ struct Thing * player = get_player();
+ struct Thing * t;
+ for (t = world.things; t; t = t->next)
{
- try_fwrite(line, strlen(line), 1, file_tmp, f_name);
+ if ( t->pos.y == player->pos.y && t->pos.x == player->pos.x
+ && t != player)
+ {
+ struct ThingType * tt = get_thing_type(t->type);
+ answer_query(tt->name);
+ answer_query("\n");
+ }
}
- free(line);
- try_fclose(file_read, f_name);
+ answer_query("THINGS_BELOW_PLAYER END\n");
+ return 1;
}
- 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);
- free(path_tmp);
+ return 0;
}
-extern void obey_msg(char * msg, uint8_t do_record)
+extern void record(char * msg, uint8_t force)
{
- 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."))
+ static FILE * file_tmp = NULL;
+ static time_t save_wait = 0;
+ static char * path_tmp;
+ if (!file_tmp)
{
- return;
+ 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 ( 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))
-
+ if (msg)
{
- remake_map();
+ try_fwrite(msg, strlen(msg), 1, file_tmp, __func__);
+ try_fputc('\n', file_tmp, __func__);
}
- else if (parse_val(tok0, tok1, s[CMD_MAKE_WORLD],'U', (char *) &world.seed))
+ if (force || time(NULL) > save_wait + 15)
{
- remake_world();
+ save_wait = time(NULL);
+ save_world();
+ atomic_write_finish(file_tmp, s[S_PATH_RECORD], path_tmp);
+ file_tmp = NULL;
}
- else
+}
+
+
+
+extern void obey_msg(char * msg, uint8_t do_record, uint8_t do_verbose)
+{
+ if (world.is_verbose && do_verbose)
{
- err_line(1, "Unknown command.");
- free(msg_copy);
- return;
+ exit_trouble(-1 == printf("Input: %s\n", msg), __func__, "printf");
}
- world.last_update_turn = 0;
- free(msg_copy);
- if (do_record)
+ set_err_line_options("Trouble with message: ", msg, 0);
+ char * msg_copy = strdup(msg);
+ char * tok0 = token_from_line(msg_copy);
+ if (tok0)
{
- save_world();
- record_msg(msg);
+
+ if (parse_command(tok0))
+ {
+ if (world.exists)
+ {
+ world.do_update = 1;
+ }
+ if (do_record)
+ {
+ record(msg, 0);
+ }
+ char * tokplus = token_from_line(NULL);
+ err_line(!(!tokplus), "Too many arguments, ignoring overflow.");
+ free(msg_copy);
+ return;
+ }
}
+ err_line(1, "Unknown command/argument or bad number of tokens.");
+ free(msg_copy);
}
extern uint8_t io_loop()
{
- char * f_name = "io_loop()";
while (1)
{
- server_test();
char * msg = io_round();
- if (NULL == msg)
+ server_test();
+ if (!msg)
{
continue;
}
if (world.is_verbose)
{
- exit_trouble(-1 == printf("Input: %s\n", msg), f_name, "printf()");
+ exit_trouble(-1 == printf("Input: %s\n", msg), __func__, "printf");
}
- if (!strcmp("QUIT", msg))
+ uint8_t test = meta_commands(msg);
+ if (test)
{
- free(msg);
- return 1;
- }
- if (!strcmp("PING", msg))
- {
- free(msg);
- char * pong = "PONG\n";
- try_fwrite(pong, strlen(pong), 1, world.file_out, f_name);
- fflush(world.file_out);
+ if (2 == test)
+ {
+ return 1;
+ }
continue;
}
if (world.replay)
free(msg);
return 0;
}
- obey_msg(msg, 1);
+ obey_msg(msg, 1, 0);
free(msg);
}
}