/**
* @brief Sends the actual actor turn event over the netchannel
*/
static void G_ClientTurn (player_t * player, edict_t* ent, dvec_t dvec)
{
const int dir = getDVdir(dvec);
/* check if action is possible */
if (!G_ActionCheckForCurrentTeam(player, ent, TU_TURN))
return;
/* check if we're already facing that direction */
if (ent->dir == dir)
return;
/* do the turn */
G_ActorDoTurn(ent, dir);
G_ActorUseTU(ent, TU_TURN);
/* send the turn */
G_EventActorTurn(ent);
/* send the new TUs */
G_SendStats(ent);
/* end the event */
G_EventEnd();
}
/**
* @brief Generates the client events that are send over the netchannel to move an actor
* @param[in] player Player who is moving an actor
* @param[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 @c 0 - but
* not if they e.g. hide.
* @param[in] ent Edict to move
* @param[in] to The grid position to walk to
* @sa CL_ActorStartMove
* @sa PA_MOVE
*/
void G_ClientMove (const player_t * player, int visTeam, edict_t* ent, const pos3_t to)
{
int status, initTU;
dvec_t dvtab[MAX_DVTAB];
int dir;
byte numdv, length;
pos3_t pos;
float div;
int oldState;
int oldHP;
bool autoCrouchRequired = false;
byte crouchingState;
if (VectorCompare(ent->pos, to))
return;
/* check if action is possible */
if (!G_ActionCheckForCurrentTeam(player, ent, TU_MOVE_STRAIGHT))
return;
crouchingState = G_IsCrouched(ent) ? 1 : 0;
oldState = oldHP = 0;
/* calculate move table */
G_MoveCalc(visTeam, ent, ent->pos, crouchingState, ent->TU);
length = gi.MoveLength(level.pathingMap, to, crouchingState, false);
/* length of ROUTING_NOT_REACHABLE means not reachable */
if (length && length >= ROUTING_NOT_REACHABLE)
return;
/* Autostand: check if the actor is crouched and player wants autostanding...*/
if (crouchingState && player->autostand) {
/* ...and if this is a long walk... */
if (SHOULD_USE_AUTOSTAND(length)) {
/* ...make them stand first. If the player really wants them to walk a long
* way crouched, he can move the actor in several stages.
* Uses the threshold at which standing, moving and crouching again takes
* fewer TU than just crawling while crouched. */
G_ClientStateChange(player, ent, STATE_CROUCHED, true); /* change to stand state */
crouchingState = G_IsCrouched(ent) ? 1 : 0;
if (!crouchingState) {
G_MoveCalc(visTeam, ent, ent->pos, crouchingState, ent->TU);
length = gi.MoveLength(level.pathingMap, to, crouchingState, false);
autoCrouchRequired = true;
}
}
}
/* this let the footstep sounds play even over network */
ent->think = G_PhysicsStep;
ent->nextthink = level.time;
/* assemble dvec-encoded move data */
VectorCopy(to, pos);
initTU = ent->TU;
numdv = G_FillDirectionTable(dvtab, lengthof(dvtab), crouchingState, pos);
/* make sure to end any other pending events - we rely on EV_ACTOR_MOVE not being active anymore */
gi.EndEvents();
/* everything ok, found valid route? */
if (VectorCompare(pos, ent->pos)) {
byte* stepAmount = NULL;
int usedTUs = 0;
/* no floor inventory at this point */
FLOOR(ent) = NULL;
while (numdv > 0) {
/* A flag to see if we needed to change crouch state */
int crouchFlag;
const byte oldDir = ent->dir;
int dvec;
/* get next dvec */
numdv--;
dvec = dvtab[numdv];
/* This is the direction to make the step into */
dir = getDVdir(dvec);
/* turn around first */
status = G_ActorDoTurn(ent, dir);
if (status & VIS_STOP) {
autoCrouchRequired = false;
if (ent->moveinfo.steps == 0)
usedTUs += TU_TURN;
break;
}
if (G_ActorShouldStopInMidMove(ent, status, dvtab, numdv)) {
/* don't autocrouch if new enemy becomes visible */
autoCrouchRequired = false;
/* if something appears on our route that didn't trigger a VIS_STOP, we have to
* send the turn event if this is our first step */
if (oldDir != ent->dir && ent->moveinfo.steps == 0) {
G_EventActorTurn(ent);
usedTUs += TU_TURN;
}
break;
}
/* decrease TUs */
div = gi.GetTUsForDirection(dir, G_IsCrouched(ent));
if ((int) (usedTUs + div) > ent->TU)
break;
usedTUs += div;
/* This is now a flag to indicate a change in crouching - we need this for
* the stop in mid move call(s), because we need the updated entity position */
crouchFlag = 0;
/* Calculate the new position after the decrease in TUs, otherwise the game
* remembers the false position if the time runs out */
PosAddDV(ent->pos, crouchFlag, dvec);
/* slower if crouched */
if (G_IsCrouched(ent))
ent->speed = ACTOR_SPEED_CROUCHED;
else
ent->speed = ACTOR_SPEED_NORMAL;
ent->speed *= g_actorspeed->value;
if (crouchFlag == 0) { /* No change in crouch */
edict_t* clientAction;
int contentFlags;
vec3_t pointTrace;
G_EdictCalcOrigin(ent);
VectorCopy(ent->origin, pointTrace);
pointTrace[2] += PLAYER_MIN;
contentFlags = gi.PointContents(pointTrace);
/* link it at new position - this must be done for every edict
* movement - to let the server know about it. */
gi.LinkEdict(ent);
/* Only the PHALANX team has these stats right now. */
if (ent->chr.scoreMission) {
float truediv = gi.GetTUsForDirection(dir, 0); /* regardless of crouching ! */
if (G_IsCrouched(ent))
ent->chr.scoreMission->movedCrouched += truediv;
else
ent->chr.scoreMission->movedNormal += truediv;
}
/* write the step to the net */
G_WriteStep(ent, &stepAmount, dvec, contentFlags);
/* check if player appears/perishes, seen from other teams */
G_CheckVis(ent, true);
/* check for anything appearing, seen by "the moving one" */
status = G_CheckVisTeamAll(ent->team, false, ent);
/* Set ent->TU because the reaction code relies on ent->TU being accurate. */
G_ActorSetTU(ent, initTU - usedTUs);
clientAction = ent->clientAction;
oldState = ent->state;
oldHP = ent->HP;
/* check triggers at new position */
if (G_TouchTriggers(ent)) {
if (!clientAction)
status |= VIS_STOP;
}
G_TouchSolids(ent, 10.0f);
/* state has changed - maybe we walked on a trigger_hurt */
if (oldState != ent->state)
status |= VIS_STOP;
else if (oldHP != ent->HP)
status |= VIS_STOP;
} else if (crouchFlag == 1) {
/* Actor is standing */
G_ClientStateChange(player, ent, STATE_CROUCHED, true);
} else if (crouchFlag == -1) {
/* Actor is crouching and should stand up */
G_ClientStateChange(player, ent, STATE_CROUCHED, false);
}
/* check for reaction fire */
if (G_ReactionFireOnMovement(ent)) {
status |= VIS_STOP;
autoCrouchRequired = false;
}
/* check for death */
if (((oldHP != 0 && oldHP != ent->HP) || (oldState != ent->state)) && !G_IsDazed(ent)) {
/** @todo Handle dazed via trigger_hurt */
/* maybe this was due to rf - then the G_ActorDie was already called */
if (!G_IsDead(ent)) {
G_CheckDeathOrKnockout(ent, NULL, NULL, oldHP - ent->HP);
}
return;
}
if (G_ActorShouldStopInMidMove(ent, status, dvtab, numdv - 1)) {
/* don't autocrouch if new enemy becomes visible */
autoCrouchRequired = false;
break;
}
/* Restore ent->TU because the movement code relies on it not being modified! */
G_ActorSetTU(ent, initTU);
}
/* submit the TUs / round down */
if (g_notu != NULL && g_notu->integer)
G_ActorSetTU(ent, initTU);
else
G_ActorSetTU(ent, initTU - usedTUs);
G_SendStats(ent);
/* end the move */
G_GetFloorItems(ent);
gi.EndEvents();
}
if (autoCrouchRequired) {
/* toggle back to crouched state */
G_ClientStateChange(player, ent, STATE_CROUCHED, true);
}
}
/**
* @brief Turns an actor around
* @param[in] ent the actor (edict) we are talking about
* @param[in] dir the direction to turn the edict into, might be an action
* @return Bitmask of visible (VIS_*) values
* @sa G_CheckVisTeamAll
*/
int G_ActorDoTurn (Edict* ent, byte dir)
{
assert(ent->dir < CORE_DIRECTIONS);
assert(dir < PATHFINDING_DIRECTIONS);
/*
* If dir is at least CORE_DIRECTIONS but less than FLYING_DIRECTIONS,
* then the direction is an action.
*/
/** @todo If performing an action, ensure the actor is facing the direction
* needed to perform the action if needed (climbing ladders).
*/
if (dir >= CORE_DIRECTIONS && dir < FLYING_DIRECTIONS)
return 0;
/* Clamp dir between 0 and CORE_DIRECTIONS - 1. */
dir &= (CORE_DIRECTIONS - 1);
assert(dir < CORE_DIRECTIONS);
/* Return if no rotation needs to be done. */
if (ent->dir == dir)
return 0;
/* calculate angle difference */
float angleDiv = directionAngles[dir] - directionAngles[ent->dir];
if (angleDiv > 180.0)
angleDiv -= 360.0;
if (angleDiv < -180.0)
angleDiv += 360.0;
/* prepare rotation - decide whether the actor turns around the left
* shoulder or the right - this is needed the get the rotation vector
* that is used below to check in each of the rotation steps
* (1/8, 22.5 degree) whether something became visible while turning */
const byte* rot;
int num;
if (angleDiv > 0) {
const int angleStep = (360.0 / CORE_DIRECTIONS);
rot = dvleft;
num = (angleDiv + angleStep / 2) / angleStep;
} else {
const int angleStep = (360.0 / CORE_DIRECTIONS);
rot = dvright;
num = (-angleDiv + angleStep / 2) / angleStep;
}
/* do rotation and vis checks */
int status = 0;
/* check every angle (1/8 steps - on the way to the end direction) in the rotation
* whether something becomes visible and stop before reaching the final direction
* if this happened */
for (int i = 0; i < num; i++) {
ent->dir = rot[ent->dir];
assert(ent->dir < CORE_DIRECTIONS);
status |= G_CheckVisTeamAll(ent->team, 0, ent);
}
if (status & VIS_STOP) {
/* send the turn */
G_EventActorTurn(*ent);
}
return status;
}