X-Git-Url: https://plomlompom.com/repos/?a=blobdiff_plain;f=src%2Fserver%2Frun.c;h=83fc1a0f737963d5b17b7ceaa0e9d13507941af4;hb=dd74c7f63defe31b7783f1ce2b2a96deba6d9690;hp=83bb724cb67cabbabdb1dfbff2615fc592a22dae;hpb=e03020342a74aef143b1ec38c18966dac64181b5;p=plomrogue diff --git a/src/server/run.c b/src/server/run.c index 83bb724..83fc1a0 100644 --- a/src/server/run.c +++ b/src/server/run.c @@ -1,116 +1,237 @@ -/* 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 /* strdup() */ #include "run.h" #include /* NULL */ -#include /* uint8_t, uint16_t, uint32_t */ -#include /* FILE, sprintf() */ -#include /* free() */ -#include /* strlen(), strncmp(), atoi() */ +#include /* uint8_t, uint16_t, uint32_t, int16_t */ +#include /* FILE, printf(), fflush() */ +#include /* atoi(), free() */ +#include /* strlen(), strcmp(), strncmp(), strdup() */ +#include /* time_t, time() */ #include /* 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(), try_fclose_unlink_rename(), - * textfile_sizes(), try_fputc() + * try_fgets(), textfile_width(), try_fputc(), + * atomic_write_finish(), build_temp_path() */ -#include "../common/rexit.h" /* exit_trouble() */ +#include "../common/rexit.h" /* exit_trouble(), exit_err() */ +#include "../common/try_malloc.h" /* try_malloc() */ #include "ai.h" /* ai() */ -#include "init.h" /* remake_world() */ -#include "io.h" /* io_round() */ -#include "map_object_actions.h" /* get_moa_id_by_name() */ -#include "map_objects.h" /* struct MapObj, get_player() */ -#include "world.h" /* global world */ +#include "cleanup.h" /* unset_cleanup_flag() */ +#include "god_commands.h" /* parse_god_command_(1|2|3)arg() */ +#include "hardcoded_strings.h" /* s */ +#include "io.h" /* io_round(), save_world() */ +#include "things.h" /* Thing, ThingType, ThingInMemory, get_player(), + * get_thing_action_id_by_name(), try_thing_proliferation() + */ +#include "world.h" /* world */ -/* Run the game world and its inhabitants (and their actions) until the player - * avatar is free to receive new commands (or is dead). +/* 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 void turn_over(); +static uint8_t parse_player_command_0arg(char * tok0); +static uint8_t parse_player_command_1arg(char * tok0, char * tok1); -/* Helper to turn_over() to determine whether a map object's action effort has - * reached its end. The simplicity of just comparing map_object->progress to - * moa->effort is suspended for actor movement, for in this case the effort - * depends on the diagonal movement penalty expressed in the ratio of - * world.map.dist_diagonal / world.map.dist_orthogonal. (Movement being diagonal - * or orthogonal is determined by the ->arg char encoding an even or un-even - * number digit). +/* 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 is_effort_finished(struct MapObjAct * moa, - struct MapObj * map_object); +static uint8_t parse_command_nonmeta(char * tok0); +static uint8_t parse_command_meta(char * tok0); -/* If "msg"'s first part matches "command_name", set player's MapObj's .command - * to the command's id and its .arg to a numerical value following in the latter - * part of "msg" (if no digits are found, use 0); then finish player's turn and - * turn game over to the NPCs via turn_over(); then return 1. Else, return 0. +/* 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 uint8_t apply_player_command(char * msg, char * command_name); +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); -static void turn_over() +/* 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) { - struct MapObj * player = get_player(); - struct MapObj * map_object = player; - uint16_t start_turn = world.turn; - while ( 0 < player->lifepoints - || (0 == player->lifepoints && start_turn == world.turn)) + if (!strcmp(string, comparand)) { - if (NULL == map_object) - { - world.turn++; - map_object = world.map_objs; - } - if (0 < map_object->lifepoints) + * 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 (0 == map_object->command) + if (!strcmp(tok0, s[S_CMD_AI])) { - if (map_object == player) - { - break; - } - ai(map_object); + ai(player); } - map_object->progress++; - struct MapObjAct * moa = world.map_obj_acts; - while (moa->id != map_object->command) + else { - moa = moa->next; - } - if (is_effort_finished(moa, map_object)) - { - moa->func(map_object); - map_object->command = 0; - map_object->progress = 0; + player->command = get_thing_action_id_by_name(tok0); + player->arg = 0; } + turn_over(); } - map_object = map_object->next; + return 1; } + return 0; } -static uint8_t is_effort_finished(struct MapObjAct * moa, - struct MapObj * map_object) +static uint8_t parse_player_command_1arg(char * tok0, char * tok1) { - if (moa->func != actor_move) + 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()) { - if (map_object->progress == moa->effort) + 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 1; + return 0; } + player->arg = dir; + player->command = get_thing_action_id_by_name(tok0); + turn_over(); } - else if (strchr("8624", map_object->arg)) + else { - if (map_object->progress == moa->effort) + 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; } - else if (strchr("1379", map_object->arg)) + if (!strcmp("THINGS_HERE", tok0)) { - uint16_t diagonal_effort = (moa->effort * world.map.dist_diagonal) - / world.map.dist_orthogonal; - if (map_object->progress == diagonal_effort) + 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(); + struct ThingInMemory * t; + for (t = player->t_mem; 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); + } + } + send_to_outfile("THINGS_HERE END\n", 1); return 1; } } @@ -119,86 +240,207 @@ static uint8_t is_effort_finished(struct MapObjAct * moa, -static uint8_t apply_player_command(char * msg, char * command_name) +static void server_test() { - if (!strncmp(msg, command_name, strlen(command_name))) + 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)) { - struct MapObj * player = get_player(); - player->arg = atoi(&(msg[strlen(command_name)])); - player->command = get_moa_id_by_name(command_name); - turn_over(); - return 1; + 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; } -extern void obey_msg(char * msg, uint8_t do_record) +static void turn_over() { - char * f_name = "obey_msg()"; - if ( apply_player_command(msg, "wait") /* TODO: Check for non-error */ - || apply_player_command(msg, "move") /* return value of a modified */ - || apply_player_command(msg, "pick_up")/* get_moa_id_by_name(); if id */ - || apply_player_command(msg, "drop") /* found, execute on it what's */ - || apply_player_command(msg, "use")); /* in apply_player_command(). */ - else + struct Thing * player = get_player(); + struct Thing * thing = player; + int16_t * whitelist = build_whitelist(); + while (0 < player->lifepoints) { - char * seed_command = "seed"; - if (!strncmp(msg, seed_command, strlen(seed_command))) + 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)) { - remake_world(atoi(&(msg[strlen(seed_command)]))); + if (0 < thing->lifepoints) + { + if (0 == thing->command) + { + 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; + } + } + try_thing_proliferation(thing); } + thing = thing->next; } - if (do_record) + free(whitelist); +} + + + +extern void send_to_outfile(char * answer, uint8_t flush) +{ + try_fwrite(answer, strlen(answer), 1, world.file_out, __func__); + if (flush) { - char path_tmp[strlen(world.path_record) + strlen(world.tmp_suffix) + 1]; - sprintf(path_tmp, "%s%s", world.path_record, world.tmp_suffix); - FILE * file_tmp = try_fopen(path_tmp, "w", f_name); - if (!access(world.path_record, F_OK)) + 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(world.path_record, "r", f_name); - uint32_t linemax = textfile_sizes(file_read, NULL); - char line[linemax + 1]; - while (try_fgets(line, linemax + 1, file_read, f_name)) + 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, f_name); + try_fwrite(line, strlen(line), 1, file_tmp, __func__); } - try_fclose(file_read, f_name); + free(line); + try_fclose(file_read, __func__); } - 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, world.path_record, f_name); + } + 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 io_loop() +extern uint8_t obey_msg(char * msg, uint8_t obey_state) { - char * f_name = "io_loop()"; - while (1) + if (world.is_verbose) { - char * msg = io_round(); - if (NULL == msg) + 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))) { - continue; + 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."); } - if (world.is_verbose) + else if (world.replay) { - exit_trouble(-1 == printf("Input: %s\n", msg), f_name, "printf()"); + ret = 3; } - if (!strcmp("QUIT", msg)) + else if (!world.replay) { - free(msg); - return 1; + err_line(1, "Invalid command/argument or bad number of tokens."); } - if (world.replay) + } + 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); - return 0; + if ( (!world.replay && 2 == ret) + || ( world.replay && 2 <= ret)) + { + return ret; + } } - obey_msg(msg, 1); - free(msg); } }