#include "global.h"
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include "output_file.h"
#include "sproto.h"
#include "quest.h"
#include "assets.h"

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Data Structures
struct	dump

struct	quest_player

struct	quest_state

Macros
#define	QC_CAN_RESTART -1

#define	TAG_END "[/color]"

#define	TAG_START "[color=#aa55ff]"

Typedefs
typedef struct quest_player	quest_player

typedef struct quest_state	quest_state

Functions
void	command_quest (object op, const char params)

static void	do_update (const quest_definition quest, void user)

void	dump_quests (void)

static int	evaluate_quest_conditions (const quest_condition condition, player pl)

void	free_quest (void)

static void	free_state (quest_player *pq)

static quest_state *	get_new_quest_state (void)

static quest_player *	get_or_create_quest (player *pl)

static quest_state *	get_or_create_state (quest_player *pq, sstring name)

static quest_player *	get_quest (player *pl)

static quest_state *	get_quest_by_number (player *pl, int number)

static quest_state *	get_state (quest_player *pq, sstring name)

static void	output_quests (const quest_definition quest, void user)

static void	quest_display (player pl, quest_player pq, int showall, const char *name)

void	quest_first_player_save (player *pl)

int	quest_get_player_state (player *pl, sstring quest_code)

static quest_step_definition *	quest_get_step (quest_definition *quest, int step)

static void	quest_info (player pl, player who, quest_state *qs, int level)

static void	quest_list (player pl, player who, int showall, const char *name)

static void	quest_read_player_data (quest_player *pq)

void	quest_send_initial_states (player *pl)

void	quest_set_player_state (player *pl, sstring quest_code, int state)

static void	quest_set_state (player dm, player pl, sstring quest_code, int state, int started)

void	quest_start (player *pl, sstring quest_code, int state)

int	quest_was_completed (player *pl, sstring quest_code)

static void	quest_write_player_data (const quest_player *pq)

static void	update_quests (player *pl)

Variables
static quest_player *	player_states = NULL

Detailed Description

Quest-related low-level mechanisms.

You should only need to call the public functions, all that are not static.

Data is loaded on a need-only basis - when a player quest state is queried or modified, data is read. Also, free_quest() can be called to release memory without preventing quest operations after.

Write is done for each player whenever the state changes, to ensure data integrity.

Definition in file quest.c.

Macro Definition Documentation

◆ QC_CAN_RESTART

#define QC_CAN_RESTART -1

Quest status that indicates a quest was completed and may be restarted.

Definition at line 45 of file quest.c.

◆ TAG_END

#define TAG_END "[/color]"

Definition at line 42 of file quest.c.

◆ TAG_START

#define TAG_START "[color=#aa55ff]"

Definition at line 41 of file quest.c.

Typedef Documentation

◆ quest_player

typedef struct quest_player quest_player

Information about a player.

◆ quest_state

typedef struct quest_state quest_state

Information about a quest for a player.

Function Documentation

◆ command_quest()

void command_quest	(	object *	op,
		const char *	params
	)

Command handler for 'quest'.

Parameters

op	player asking for information, warning emitted if not a player.
params	extra parameters for command.

Definition at line 750 of file quest.c.

References quest_state::code, command_help(), draw_ext_info(), draw_ext_info_format(), find_player_partial_name(), FLAG_WIZ, get_quest(), get_quest_by_number(), i18n(), llevError, LOG(), MSG_TYPE_ADMIN_DM, MSG_TYPE_COMMAND, MSG_TYPE_COMMAND_FAILURE, MSG_TYPE_COMMAND_QUESTS, MSG_TYPE_COMMAND_SUCCESS, give::name, NDI_UNIQUE, quest_state::next, pl::ob, give::op, manor::params, item::q, QUERY_FLAG, quest_get_by_code(), quest_info(), quest_list(), quest_set_state(), quest_player::quests, quest::state, and autojail::who.

Referenced by commands_init().

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◆ do_update()

static void do_update	(	const quest_definition *	quest,
		void *	user
	)

static

Definition at line 323 of file quest.c.

References quest_step_definition::conditions, evaluate_quest_conditions(), quest_step_definition::next, quest_get_player_state(), quest_set_state(), and quest_step_definition::step.

Referenced by update_quests().

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◆ dump_quests()

void dump_quests ( void )

Dump all of the quests, then calls exit() - useful in terms of debugging to make sure that quests are set up and recognised correctly.

Definition at line 899 of file quest.c.

References dump::level, output_quests(), dump::parent, and quest_for_each().

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◆ evaluate_quest_conditions()

static int evaluate_quest_conditions	(	const quest_condition *	condition,
		player *	pl
	)

static

Checks whether the conditions for a given step are met.

Parameters

condition	the linked list of conditions to check.
pl	the player to evaluate conditions for.

Returns: 1 if the conditions match, 0 if they don't.

Definition at line 301 of file quest.c.

References quest_condition::maxstep, quest_condition::minstep, quest_condition::next, quest_condition::quest_code, quest_get_player_state(), and quest_was_completed().

Referenced by do_update().

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◆ free_quest()

void free_quest ( void )

Free all quest status structures. It is all right to call quest functions again after that.

Definition at line 910 of file quest.c.

References free_state(), free_string(), give::next, quest_player::next, quest_player::player_name, and player_states.

Referenced by cleanup(), command_purge_quest(), and free_server().

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◆ free_state()

static void free_state ( quest_player * pq )

static

Free quests structures.

Parameters

pq	what to free.

Definition at line 651 of file quest.c.

References quest_state::code, free_string(), give::next, quest_state::next, and quest_player::quests.

Referenced by free_quest().

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◆ get_new_quest_state()

static quest_state* get_new_quest_state ( void )

static

Return a new quest_state*, calling fatal() if memory shortage.

Returns: new value, never NULL.

Definition at line 91 of file quest.c.

References fatal(), and OUT_OF_MEMORY.

Referenced by quest_read_player_data().

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◆ get_or_create_quest()

static quest_player* get_or_create_quest ( player * pl )

static

Get quest status for a player, creating it if it doesn't exist yet. Calls fatal() if memory allocation error.

Parameters

pl	player to get information of.

Returns: quest status, never NULL.

Definition at line 276 of file quest.c.

References add_refcount(), fatal(), get_quest(), obj::name, quest_player::next, pl::ob, OUT_OF_MEMORY, quest_player::player_name, player_states, and quest_read_player_data().

Referenced by get_quest_by_number(), quest_get_player_state(), quest_info(), quest_list(), quest_send_initial_states(), quest_set_state(), quest_start(), and quest_was_completed().

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◆ get_or_create_state()

static quest_state* get_or_create_state	(	quest_player *	pq,
		sstring	name
	)

static

Get the state of a quest for a player, creating it if not existing yet.

Parameters

pq	player to get state for.
name	quest to get state of.

Returns: quest's state information, newly created if it wasn't done yet.

Definition at line 232 of file quest.c.

References add_refcount(), quest_state::code, fatal(), get_state(), give::name, quest_state::next, OUT_OF_MEMORY, and quest_player::quests.

Referenced by quest_set_state(), and quest_start().

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◆ get_quest()

static quest_player* get_quest ( player * pl )

static

Get quest status for a player, not creating it if it doesn't exist.

Parameters

pl	player to get information of.

Returns: quest status, NULL if not loaded/found yet.

Definition at line 258 of file quest.c.

References obj::name, quest_player::next, pl::ob, quest_player::player_name, and player_states.

Referenced by command_quest(), get_or_create_quest(), and quest_first_player_save().

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◆ get_quest_by_number()

static quest_state* get_quest_by_number	(	player *	pl,
		int	number
	)

static

returns the quest state which corresponds to a certain number for the given player.

Parameters

pl	player asking for details.
number	quest number.

Returns: quest state corresponding to the number provided, NULL if there is no such quest state.

Definition at line 550 of file quest.c.

References get_or_create_quest(), quest_definition::parent, QC_CAN_RESTART, quest_find_by_code(), quest_player::quests, and quest::state.

Referenced by command_quest().

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◆ get_state()

static quest_state* get_state	(	quest_player *	pq,
		sstring	name
	)

static

Get the state of a quest for a player, not creating if not existing yet.

Parameters

pq	player to get state for.
name	quest to get state of.

Returns: NULL if quest isn't started yet for this player, else quest's state information.

Definition at line 214 of file quest.c.

References quest_state::code, give::name, quest_state::next, and quest_player::quests.

Referenced by get_or_create_state(), quest_get_player_state(), and quest_was_completed().

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◆ output_quests()

static void output_quests	(	const quest_definition *	quest,
		void *	user
	)

static

Dump one quest on the logfile, then its children. Will call itself through quest_for_each().

Parameters

quest	quest to dump.
user	pointer to a dump struct.

Definition at line 868 of file quest.c.

References dump::level, logfile, MAX_BUF, quest_step_definition::next, dump::parent, castle_read::prefix, quest_for_each(), and ring_occidental_mages::r.

Referenced by dump_quests().

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◆ quest_display()

static void quest_display	(	player *	pl,
		quest_player *	pq,
		int	showall,
		const char *	name
	)

static

Utility function to display a quest list. Will show a header before the list if not empty.

Parameters

pl	player to display list of quests.
pq	quests to display.
showall	if 0, only shows quests in progress and a summary of completed quests, else shows all quests.
name	either 'You' or the player's name, if pl is a DM asking about another player.

Definition at line 457 of file quest.c.

References draw_ext_info_format(), i18n(), MSG_TYPE_COMMAND, MSG_TYPE_COMMAND_QUESTS, give::name, NDI_UNIQUE, pl::ob, QC_CAN_RESTART, quest_find_by_code(), quest_player::quests, quests_count, and quest::state.

Referenced by quest_list().

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◆ quest_first_player_save()

void quest_first_player_save ( player * pl )

Ensure the quest state is correctly saved for a player. This function should only be called once, when the player's save directory is created. All other quest functions save the state automatically, but save can only happen when the player directory exists.

Parameters

pl	who to save quests for.

Definition at line 986 of file quest.c.

References get_quest(), quest_write_player_data(), and quest_player::quests.

Referenced by save_player().

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◆ quest_get_player_state()

int quest_get_player_state	(	player *	pl,
		sstring	quest_code
	)

Get the quest state for a player.

Parameters

pl	player.
quest_code	internal quest code.

Returns: QC_COMPLETED if finished and quest can't be replayed, 0 if not started or finished and can be replayed, else quest-specific value.

Definition at line 672 of file quest.c.

References get_or_create_quest(), get_state(), item::q, QC_CAN_RESTART, quest_find_by_code(), and quest_state::state.

Referenced by cfapi_player_quest(), do_update(), and evaluate_quest_conditions().

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◆ quest_get_step()

static quest_step_definition* quest_get_step	(	quest_definition *	quest,
		int	step
	)

static

Get a step for the specified quest.

Parameters

quest	quest to consider.
step	step to find.

Returns: step, or NULL if no such step in which case a llevError is emitted.

Definition at line 73 of file quest.c.

References llevError, LOG(), quest_step_definition::next, and quest_step_definition::step.

Referenced by quest_info(), quest_read_player_data(), quest_send_initial_states(), and quest_set_state().

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◆ quest_info()

static void quest_info	(	player *	pl,
		player *	who,
		quest_state *	qs,
		int	level
	)

static

Give details about a quest.

Parameters

pl	player to give quest details to.
who	player to give quest details of.
qs	quest_state to give details about
level	The level of recursion for the quest info that's being provided

Definition at line 585 of file quest.c.

References quest_state::code, draw_ext_info(), draw_ext_info_format(), FLAG_WIZ, get_or_create_quest(), i18n(), quest_state::is_complete, MSG_TYPE_COMMAND, MSG_TYPE_COMMAND_QUESTS, NDI_UNIQUE, quest_step_definition::next, pl::ob, quest_definition::parent, castle_read::prefix, QC_CAN_RESTART, QUERY_FLAG, quest_find_by_code(), quest_get_step(), quest_player::quests, quest::state, quest_state::state, quest_step_definition::step, quest_step_definition::step_description, TAG_END, TAG_START, and autojail::who.

Referenced by command_quest().

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◆ quest_list()

static void quest_list	(	player *	pl,
		player *	who,
		int	showall,
		const char *	name
	)

static

Display current and completed player quests.

Parameters

pl	player to display to.
who	player to display information for.
showall	- whether to show all of the quests in full, just summary information for the completed ones
name	either 'You' or the player's name, if pl is a DM asking about another player.

Definition at line 530 of file quest.c.

References draw_ext_info_format(), get_or_create_quest(), MSG_TYPE_COMMAND, MSG_TYPE_COMMAND_QUESTS, give::name, NDI_UNIQUE, pl::ob, quest_display(), quest_player::quests, and autojail::who.

Referenced by command_quest().

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◆ quest_read_player_data()

static void quest_read_player_data ( quest_player * pq )

static

Read quest-data information for a player.

Parameters

pq	player to read data for.

Definition at line 102 of file quest.c.

References add_string(), quest_state::code, navar-midane_time::data, mad_mage_user::file, get_new_quest_state(), quest_state::is_complete, quest_step_definition::is_completion_step, llevDebug, llevError, Settings::localdir, LOG(), MAX_BUF, quest_state::next, quest_player::player_name, Settings::playerdir, quest_get_by_code(), quest_get_step(), quest_player::quests, settings, quest::state, quest_state::state, and quest_state::was_completed.

Referenced by get_or_create_quest().

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◆ quest_send_initial_states()

void quest_send_initial_states ( player * pl )

Send the current quest states for the specified player, if the client supports those notifications.

Parameters

pl	who to send quests for.

Definition at line 928 of file quest.c.

References esrv_send_face(), socket_struct::faces_sent, get_or_create_quest(), quest_step_definition::is_completion_step, socket_struct::notifications, NS_FACESENT_FACE, quest_get_by_code(), quest_get_step(), quest_player::quests, Send_With_Handling(), pl::socket, SockList_AddChar(), SockList_AddInt(), SockList_AddLen16Data(), SockList_AddShort(), SockList_AddString(), SockList_Avail(), SockList_Init(), SockList_Reset(), SockList_Term(), quest::state, and quest_step_definition::step_description.

Referenced by check_login().

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◆ quest_set_player_state()

void quest_set_player_state	(	player *	pl,
		sstring	quest_code,
		int	state
	)

Set the state of a quest for a player.

Parameters

pl	player to set the state for.
quest_code	quest internal code.
state	new state for the quest, must be greater than 0 else forced to 100 and a warning is emitted.

Definition at line 728 of file quest.c.

References quest_set_state(), and quest::state.

Referenced by cfapi_player_quest().

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◆ quest_set_state()

static void quest_set_state	(	player *	dm,
		player *	pl,
		sstring	quest_code,
		int	state,
		int	started
	)

static

Set the state of a quest for a player.

Parameters

dm	if NULL then the player is actually playing, else a DM is changing the quest's state manually.
pl	player to set the state for.
quest_code	quest internal code.
state	new state for the quest, must be greater than 0 else forced to 100 and a warning is emitted.
started	if 1, quest must have been started first or a warning is emitted, else it doesn't matter.