g_move.c File Reference

#include "g_local.h"

Include dependency graph for g_move.c:

Defines
#define	ACTOR_SPEED_NORMAL 100
#define	ACTOR_SPEED_CROUCHED (ACTOR_SPEED_NORMAL / 2)
Functions
static void	G_BuildForbiddenList (int team, const edict_t *movingActor)
	Build the forbidden list for the pathfinding (server side).
void	G_MoveCalc (int team, const edict_t *movingActor, const pos3_t from, byte crouchingState, int distance)
	Precalculates a move table for a given team and a given starting position. This will calculate a routing table for all reachable fields with the given distance from the given spot with the given actorsize.
void	G_MoveCalcLocal (pathing_t pt, int team, const edict_t movingActor, const pos3_t from, byte crouchingState, int distance)
	Same as `G_MoveCalc`, except that it uses the pathing table passed as the first param.
edict_t *	G_GetActorFromPos (const pos3_t pos)
	Searches an actor on the given grid position.
void	G_ActorFall (edict_t *ent)
	Let an actor fall down if e.g. the func_breakable the actor was standing on was destroyed.
static qboolean	G_ActorShouldStopInMidMove (const edict_t ent, int visState, byte dvtab, int max)
	Checks whether the actor should stop movement.
void	G_ClientMove (const player_t player, int visTeam, edict_t ent, const pos3_t to)
	Generates the client events that are send over the netchannel to move an actor.
Variables
static const float	FALLING_DAMAGE_FACTOR = 10.0f
static pos_t *	forbiddenList [MAX_FORBIDDENLIST]
	The forbidden list is a list of entity positions that are occupied by an entity. This list is checked everytime an actor wants to walk there.
static int	forbiddenListLength

Detailed Description

Definition in file g_move.c.

Define Documentation

#define ACTOR_SPEED_CROUCHED (ACTOR_SPEED_NORMAL / 2)

Definition at line 28 of file g_move.c.

Referenced by G_ClientMove().

#define ACTOR_SPEED_NORMAL 100

Definition at line 27 of file g_move.c.

Referenced by G_ClientMove().

Function Documentation

void G_ActorFall ( edict_t * ent )

Let an actor fall down if e.g. the func_breakable the actor was standing on was destroyed.

Parameters:

[in,out] ent The actor that should fall down

Todo:: Handle cases where the grid position the actor would fall to is occupied by another actor already.

Definition at line 137 of file g_move.c.

References ET_NULL, FALLING_DAMAGE_FACTOR, edict_s::fieldSize, G_CheckVis(), G_EdictCalcOrigin(), G_EventActorFall(), G_GetEdictFromPos(), G_IsBlockingMovementActor, G_IsBreakable, G_TakeDamage(), gi, edict_s::pos, qtrue, and game_import_t::routingMap.

Referenced by Touch_Breakable().

static qboolean G_ActorShouldStopInMidMove	(	const edict_t *	ent,
		int	visState,
		byte *	dvtab,
		int	max
	)			`[static]`

Checks whether the actor should stop movement.

Parameters:

	ent	The actors edict
	visState	The visibility check state `VIS_PERISH`, `VIS_APPEAR`

Returns:: true if the actor should stop movement, false otherwise

Definition at line 166 of file g_move.c.

References ET_NULL, G_GetEdictFromPos(), G_IsBlockingMovementActor, G_IsVisibleForTeam, edict_s::pos, pos, PosAddDV, qfalse, qtrue, edict_s::team, VectorCopy, VIS_APPEAR, and VIS_STOP.

Referenced by G_ClientMove().

static void G_BuildForbiddenList	(	int	team,
		const edict_t *	movingActor
	)			`[static]`

Build the forbidden list for the pathfinding (server side).

Parameters:

`[in]`	team	The team number if the list should be calculated from the eyes of that team. Use 0 to ignore team.
`[in]`	movingActor	The moving actor to build the forbidden list for. If this is an AI actor, everything other actor will be included in the forbidden list - even the invisible ones. This is needed to ensure that they are not walking into each other (civilians <=> aliens, aliens <=> civilians)

See also:: G_MoveCalc; Grid_CheckForbidden; CL_BuildForbiddenList <- shares quite some code

Note:: This is used for pathfinding. It is a list of where the selected unit can not move to because others are standing there already.

Definition at line 50 of file g_move.c.

References byte, ET_SOLID, edict_s::fieldSize, forbiddenList, forbiddenListLength, edict_s::forbiddenListPos, edict_s::forbiddenListSize, G_EdictsGetNextInUse(), G_IsAI, G_IsBlockingMovementActor, G_TeamToVisMask, gi, MAX_FORBIDDENLIST, edict_s::pos, TEAM_ALL, edict_s::type, and edict_s::visflags.

Referenced by G_MoveCalcLocal().

void G_ClientMove	(	const player_t *	player,
		int	visTeam,
		edict_t *	ent,
		const pos3_t	to
	)

Generates the client events that are send over the netchannel to move an actor.

Parameters:

`[in]`	player	Player who is moving an actor
`[in]`	visTeam	The team to check the visibility for - if this is 0 we build the forbidden list above all edicts - for the human controlled actors this would mean that clicking to a grid position that is not reachable because an invisible actor is standing there would not result in a single step - as the movement is aborted before. For AI movement this is in general `0` - but not if they e.g. hide.
`[in]`	ent	Edict to move
`[in]`	to	The grid position to walk to

See also:: CL_ActorStartMove; PA_MOVE

Todo:: Handle dazed via trigger_hurt

Definition at line 207 of file g_move.c.

References ACTOR_SPEED_CROUCHED, ACTOR_SPEED_NORMAL, player_s::autostand, byte, edict_s::chr, edict_s::clientAction, moveinfo_t::contentFlags, CORE_DIRECTIONS, moveinfo_t::currentStep, edict_s::dir, EV_ACTOR_MOVE, FLOOR, G_ActionCheckForCurrentTeam(), G_ActorDieOrStun(), G_ActorDoTurn(), G_ActorSetTU(), G_ActorShouldStopInMidMove(), g_actorspeed, G_CheckVis(), G_CheckVisTeamAll(), G_ClientStateChange(), G_EdictCalcOrigin(), G_EventActorTurn(), G_GetFloorItems(), G_IsCrouched, G_IsDazed, G_IsDead, G_MoveCalc(), g_notu, G_PhysicsStep(), G_PrintActorStats(), G_ReactionFireOnMovement(), G_SendStats(), G_TouchTriggers(), G_VisToPM(), getDVdir, gi, cvar_s::integer, lengthof, level, MAX_DVTAB, chrScoreMission_s::movedCrouched, chrScoreMission_s::movedNormal, edict_s::moveinfo, NewDVZ, edict_s::nextthink, edict_s::number, edict_s::origin, level_locals_t::pathingMap, PLAYER_MIN, edict_s::pos, pos, PosAddDV, PosSubDV, qfalse, qtrue, ROUTING_NOT_REACHABLE, ROUTING_UNREACHABLE, character_s::scoreMission, SHOULD_USE_AUTOSTAND, edict_s::speed, edict_s::state, STATE_CROUCHED, moveinfo_t::steps, edict_s::team, edict_s::think, level_locals_t::time, edict_s::TU, TU_CROUCH_MOVING_FACTOR, TU_MOVE_STRAIGHT, TU_TURN, cvar_s::value, VectorCompare, VectorCopy, VIS_STOP, moveinfo_t::visflags, edict_s::visflags, and game_import_t::WriteDummyByte().

Referenced by AI_ActorThink(), AI_PrepBestAction(), G_ClientAction(), and pos3L_goto().

edict_t* G_GetActorFromPos ( const pos3_t pos )

Searches an actor on the given grid position.

Parameters:

pos

The position to search an actor on

Returns:: The actor or NULL if no actor is standing on that grid position

Definition at line 121 of file g_move.c.

References ET_ACTOR, ET_ACTOR2x2, ET_ACTORHIDDEN, and G_GetEdictFromPos().

Referenced by G_SpawnItemOnFloor().

void G_MoveCalc	(	int	team,
		const edict_t *	movingActor,
		const pos3_t	from,
		byte	crouchingState,
		int	distance
	)

Precalculates a move table for a given team and a given starting position. This will calculate a routing table for all reachable fields with the given distance from the given spot with the given actorsize.

Parameters:

`[in]`	team	The current team (see G_BuildForbiddenList)
`[in]`	from	Position in the map to start the move-calculation from.
`[in]`	crouchingState	The crouching state of the actor. 0=stand, 1=crouch
`[in]`	distance	The distance in TUs to calculate the move for.
`[in]`	movingActor	The actor to calculate the move for

See also:: G_BuildForbiddenList; G_MoveCalcLocal

Definition at line 93 of file g_move.c.

References G_MoveCalcLocal(), level, and level_locals_t::pathingMap.

Referenced by AI_PrepBestAction(), AI_TurnIntoDirection(), AIL_positionshoot(), G_ClientMove(), and pos3L_goto().

void G_MoveCalcLocal	(	pathing_t *	pt,
		int	team,
		const edict_t *	movingActor,
		const pos3_t	from,
		byte	crouchingState,
		int	distance
	)

Same as G_MoveCalc, except that it uses the pathing table passed as the first param.

Parameters:

`[in]`	pt	the pathfinding table
`[in]`	team	The current team (see G_BuildForbiddenList)
`[in]`	from	Position in the map to start the move-calculation from.
`[in]`	crouchingState	The crouching state of the actor. 0=stand, 1=crouch
`[in]`	distance	The distance in TUs to calculate the move for.
`[in]`	movingActor	The actor to calculate the move for