/**
* @brief Checks whether the actor should stop movement
* @param ent The actors edict
* @param visState The visibility check state @c VIS_PERISH, @c VIS_APPEAR
* @return @c true if the actor should stop movement, @c false otherwise
*/
static bool G_ActorShouldStopInMidMove (const edict_t *ent, int visState, dvec_t* dvtab, int max)
{
if (visState & VIS_STOP)
return true;
/* check that the appearing unit is not on a grid position the actor wanted to walk to.
* this might be the case if the edict got visible in mid mode */
if (visState & VIS_APPEAR) {
pos3_t pos;
VectorCopy(ent->pos, pos);
while (max >= 0) {
int tmp = 0;
const edict_t *blockEdict;
PosAddDV(pos, tmp, dvtab[max]);
max--;
blockEdict = G_GetLivingActorFromPos(pos);
if (blockEdict && G_IsBlockingMovementActor(blockEdict)) {
const bool visible = G_IsVisibleForTeam(blockEdict, ent->team);
if (visible)
return true;
}
}
}
return false;
}
static void LE_DoPathMove (le_t* le)
{
/* next part */
const dvec_t dvec = le->dvtab[le->pathPos];
const byte dir = getDVdir(dvec);
const byte crouchingState = LE_IsCrouched(le) ? 1 : 0;
/* newCrouchingState needs to be set to the current crouching state
* and is possibly updated by PosAddDV. */
byte newCrouchingState = crouchingState;
PosAddDV(le->pos, newCrouchingState, dvec);
LE_PlayFootStepSound(le);
/* only change the direction if the actor moves horizontally. */
if (dir < CORE_DIRECTIONS || dir >= FLYING_DIRECTIONS)
le->angle = dir & (CORE_DIRECTIONS - 1);
le->angles[YAW] = directionAngles[le->angle];
le->startTime = le->endTime;
/* check for straight movement or diagonal movement */
assert(le->speed[le->pathPos]);
le->endTime += LE_ActorGetStepTime(le, le->pos, le->oldPos, dir, le->speed[le->pathPos]);
le->positionContents = le->pathContents[le->pathPos];
le->pathPos++;
}
/**
* @brief Decides if following events should be delayed. The delay is the amount of time the actor needs to walk
* from the start to the end pos.
*/
int CL_ActorDoMoveTime (const eventRegister_t *self, dbuffer *msg, eventTiming_t *eventTiming)
{
int time = 0;
const int eventTime = eventTiming->nextTime;
const int number = NET_ReadShort(msg);
/* get le */
const le_t *le = LE_Get(number);
if (!le)
LE_NotFoundError(number);
pos3_t pos;
VectorCopy(le->pos, pos);
byte crouchingState = LE_IsCrouched(le) ? 1 : 0;
/* the end of this event is marked with a 0 */
while (NET_PeekLong(msg) != 0) {
const dvec_t dvec = NET_ReadShort(msg);
const byte dir = getDVdir(dvec);
pos3_t oldPos;
VectorCopy(pos, oldPos);
PosAddDV(pos, crouchingState, dvec);
time += LE_ActorGetStepTime(le, pos, oldPos, dir, NET_ReadShort(msg));
NET_ReadShort(msg);
}
/* skip the end of move marker */
NET_ReadLong(msg);
/* Also skip the final position */
NET_ReadByte(msg);
NET_ReadByte(msg);
NET_ReadByte(msg);
assert(NET_PeekByte(msg) == EV_NULL);
eventTiming->nextTime += time + 400;
return eventTime;
}
/**
* @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 Decides if following events should be delayed. The delay is the amount of time the actor needs to walk
* from the start to the end pos.
*/
int CL_ActorDoMoveTime (const eventRegister_t* self, dbuffer* msg, eventTiming_t* eventTiming)
{
int time = 0;
const int eventTime = eventTiming->nextTime;
const int number = NET_ReadShort(msg);
/* get le */
le_t* le = LE_Get(number);
if (!le)
LE_NotFoundError(number);
pos3_t pos;
VectorCopy(le->pos, pos);
byte crouchingState = LE_IsCrouched(le) ? 1 : 0;
leStep_t* newStep = Mem_AllocType(leStep_t);
if (le->stepList == nullptr) {
le->stepList = newStep;
le->stepIndex = 0;
} else {
/* append to the list */
leStep_t* step = le->stepList;
while (step) {
if (step->next == nullptr) {
step->next = newStep;
le->stepIndex++;
break;
}
step = step->next;
}
}
/* the end of this event is marked with a 0 */
while (NET_PeekLong(msg) != 0) {
newStep->steps = NET_ReadByte(msg);
const dvec_t dvec = NET_ReadShort(msg);
const byte dir = getDVdir(dvec);
pos3_t oldPos;
VectorCopy(pos, oldPos);
PosAddDV(pos, crouchingState, dvec);
const int stepTime = LE_ActorGetStepTime(le, pos, oldPos, dir, NET_ReadShort(msg));
newStep->stepTimes[newStep->steps] = stepTime;
time += stepTime;
NET_ReadShort(msg);
}
++newStep->steps;
if (newStep->steps > MAX_ROUTE)
Com_Error(ERR_DROP, "route length overflow: %i", newStep->steps);
/* skip the end of move marker */
NET_ReadLong(msg);
/* Also skip the final position */
NET_ReadByte(msg);
NET_ReadByte(msg);
NET_ReadByte(msg);
assert(NET_PeekByte(msg) == EV_NULL);
eventTiming->nextTime += time + 400;
newStep->lastMoveTime = eventTime;
newStep->lastMoveDuration = time;
return eventTime;
}
/**
* @brief Calculates the time the event should get executed. If two events return the same time,
* they are going to be executed in the order the were parsed.
* @param[in] eType The event type
* @param[in,out] msg The message buffer that can be modified to get the event time
* @param[in] dt Delta time in msec since the last event was parsed
*/
int CL_GetEventTime (const event_t eType, struct dbuffer *msg, const int dt)
{
const eventRegister_t *eventData = CL_GetEvent(eType);
#ifdef OLDEVENTTIME
/* the time the event should be executed. This value is used to sort the
* event chain to determine which event must be executed at first. This
* value also ensures, that the events are executed in the correct
* order. E.g. @c impactTime is used to delay some events in case the
* projectile needs some time to reach its target. */
int eventTime;
if (eType == EV_RESET) {
parsedDeath = qfalse;
nextTime = 0;
shootTime = 0;
impactTime = 0;
} else if (eType == EV_ACTOR_DIE)
parsedDeath = qtrue;
/* get event time */
if (nextTime < cl.time)
nextTime = cl.time;
if (impactTime < cl.time)
impactTime = cl.time;
if (eType == EV_ACTOR_DIE || eType == EV_MODEL_EXPLODE)
eventTime = impactTime;
else if (eType == EV_ACTOR_SHOOT || eType == EV_ACTOR_SHOOT_HIDDEN)
eventTime = shootTime;
else if (eType == EV_RESULTS)
eventTime = nextTime + 1400;
else
eventTime = nextTime;
if (eType == EV_ENT_APPEAR || eType == EV_INV_ADD || eType == EV_PARTICLE_APPEAR || eType == EV_PARTICLE_SPAWN) {
if (parsedDeath) { /* drop items after death (caused by impact) */
eventTime = impactTime + 400;
/* EV_INV_ADD messages are the last events sent after a death */
if (eType == EV_INV_ADD)
parsedDeath = qfalse;
} else if (impactTime > cl.time) { /* item thrown on the ground */
eventTime = impactTime + 75;
}
}
/* calculate time interval before the next event */
switch (eType) {
case EV_ACTOR_APPEAR:
if (cl.actTeam != cls.team)
nextTime += 600;
break;
case EV_INV_RELOAD:
/* let the reload sound play */
nextTime += 600;
break;
case EV_ACTOR_START_SHOOT:
nextTime += 300;
shootTime = nextTime;
break;
case EV_ACTOR_SHOOT_HIDDEN:
{
int first;
int objIdx;
const objDef_t *obj;
weaponFireDefIndex_t weapFdsIdx;
fireDefIndex_t fireDefIndex;
NET_ReadFormat(msg, eventData->formatString, &first, &objIdx, &weapFdsIdx, &fireDefIndex);
obj = INVSH_GetItemByIDX(objIdx);
if (first) {
nextTime += 500;
impactTime = shootTime = nextTime;
} else {
const fireDef_t *fd = FIRESH_GetFiredef(obj, weapFdsIdx, fireDefIndex);
/* impact right away - we don't see it at all
* bouncing is not needed here, too (we still don't see it) */
impactTime = shootTime;
nextTime = shootTime + 1400;
if (fd->delayBetweenShots > 0.0)
shootTime += 1000 / fd->delayBetweenShots;
}
parsedDeath = qfalse;
}
break;
case EV_ACTOR_MOVE:
{
le_t *le;
int number, i;
int time = 0;
int pathLength;
byte crouchingState;
pos3_t pos, oldPos;
number = NET_ReadShort(msg);
/* get le */
le = LE_Get(number);
if (!le)
LE_NotFoundError(number);
pathLength = NET_ReadByte(msg);
/* Also skip the final position */
NET_ReadByte(msg);
NET_ReadByte(msg);
NET_ReadByte(msg);
VectorCopy(le->pos, pos);
crouchingState = LE_IsCrouched(le) ? 1 : 0;
for (i = 0; i < pathLength; i++) {
const dvec_t dvec = NET_ReadShort(msg);
const byte dir = getDVdir(dvec);
VectorCopy(pos, oldPos);
PosAddDV(pos, crouchingState, dvec);
time += LE_ActorGetStepTime(le, pos, oldPos, dir, NET_ReadShort(msg));
NET_ReadShort(msg);
}
nextTime += time + 400;
}
break;
case EV_ACTOR_SHOOT:
{
const fireDef_t *fd;
int flags, dummy;
int objIdx, surfaceFlags;
objDef_t *obj;
int weap_fds_idx, fd_idx;
shoot_types_t shootType;
vec3_t muzzle, impact;
/* read data */
NET_ReadFormat(msg, eventData->formatString, &dummy, &dummy, &dummy, &objIdx, &weap_fds_idx, &fd_idx, &shootType, &flags, &surfaceFlags, &muzzle, &impact, &dummy);
obj = INVSH_GetItemByIDX(objIdx);
fd = FIRESH_GetFiredef(obj, weap_fds_idx, fd_idx);
if (!(flags & SF_BOUNCED)) {
/* shooting */
if (fd->speed > 0.0 && !CL_OutsideMap(impact, UNIT_SIZE * 10)) {
impactTime = shootTime + 1000 * VectorDist(muzzle, impact) / fd->speed;
} else {
impactTime = shootTime;
}
if (cl.actTeam != cls.team)
nextTime = impactTime + 1400;
else
nextTime = impactTime + 400;
if (fd->delayBetweenShots > 0.0)
shootTime += 1000 / fd->delayBetweenShots;
} else {
/* only a bounced shot */
eventTime = impactTime;
if (fd->speed > 0.0) {
impactTime += 1000 * VectorDist(muzzle, impact) / fd->speed;
nextTime = impactTime;
}
}
parsedDeath = qfalse;
}
break;
case EV_ACTOR_THROW:
nextTime += NET_ReadShort(msg);
impactTime = shootTime = nextTime;
parsedDeath = qfalse;
break;
default:
break;
}
Com_DPrintf(DEBUG_EVENTSYS, "%s => eventTime: %i, nextTime: %i, impactTime: %i, shootTime: %i\n",
eventData->name, eventTime, nextTime, impactTime, shootTime);
return eventTime;
#else
if (!eventData->timeCallback)
return cl.time;
return eventData->timeCallback(eventData, msg, dt);
#endif
}