/**
* @brief Changes the state of a player/soldier.
* @param[in,out] player The player who controlls the actor
* @param[in] ent the edict to perform the state change for
* @param[in] reqState The bit-map of the requested state change
* @param[in] checkaction only activate the events - network stuff is handled in the calling function
* don't even use the G_ActionCheckForCurrentTeam function
* @note Use checkaction true only for e.g. spawning values
*/
void G_ClientStateChange (const player_t* player, edict_t* ent, int reqState, bool checkaction)
{
/* Check if any action is possible. */
if (checkaction && !G_ActionCheckForCurrentTeam(player, ent, 0))
return;
if (!reqState)
return;
switch (reqState) {
case STATE_CROUCHED: /* Toggle between crouch/stand. */
/* Check if player has enough TUs (TU_CROUCH TUs for crouch/uncrouch). */
if (!checkaction || G_ActionCheckForCurrentTeam(player, ent, TU_CROUCH)) {
if (G_IsCrouched(ent)) {
if (!gi.CanActorStandHere(ent->fieldSize, ent->pos))
break;
}
G_ToggleCrouched(ent);
G_ActorUseTU(ent, TU_CROUCH);
G_ActorSetMaxs(ent);
}
break;
case ~STATE_REACTION: /* Request to turn off reaction fire. */
if (G_IsReaction(ent)) {
if (G_IsShaken(ent)) {
G_ClientPrintf(player, PRINT_HUD, _("Currently shaken, won't let their guard down."));
} else {
/* Turn off reaction fire. */
G_RemoveReaction(ent);
G_ActorReserveTUs(ent, 0, ent->chr.reservedTus.shot, ent->chr.reservedTus.crouch);
}
}
break;
/* Request to turn on multi- or single-reaction fire mode. */
case STATE_REACTION:
/* Disable reaction fire. */
G_RemoveReaction(ent);
if (G_ReactionFireSettingsReserveTUs(ent)) {
/* Enable requested reaction fire. */
G_SetState(ent, reqState);
}
break;
default:
gi.DPrintf("G_ClientStateChange: unknown request %i, ignoring\n", reqState);
return;
}
/* Only activate the events - network stuff is handled in the calling function */
if (!checkaction)
return;
G_ClientStateChangeUpdate(ent);
}
/**
* @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 This function 'uses' the edict. E.g. it opens the door when the player wants it to open
* @sa PA_USE_DOOR
* @param[in] player The player is trying to activate the door
* @param[in,out] actor The actor the player is using to activate the entity
* @param[in,out] edict The entity that is to be used
* @todo Do we have to change the trigger position here, too? I don't think this is really needed.
* @sa CL_ActorUse
* @sa G_UseEdict
*/
bool G_ClientUseEdict (const player_t *player, edict_t *actor, edict_t *edict)
{
/* check whether the actor has sufficient TUs to 'use' this edicts */
if (!G_ActionCheckForCurrentTeam(player, actor, edict->TU))
return false;
if (!G_UseEdict(edict, actor))
return false;
/* using a group of edicts only costs TUs once (for the master) */
G_ActorUseTU(actor, edict->TU);
/* send the new TUs */
G_SendStats(actor);
G_EventEnd();
return true;
}
/**
* @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 Moves an item inside an inventory. Floors are handled special.
* @param[in] actor The pointer to the selected/used edict/soldier.
* @param[in] fromContType The container (-id) the item should be moved from.
* @param[in] fItem The item you want to move.
* @param[in] toContType The container (-def) the item should be moved to.
* @param[in] tx x position where you want the item to go in the destination container
* @param[in] ty y position where you want the item to go in the destination container
* @param[in] checkaction Set this to true if you want to check for TUs, otherwise false.
* @sa event PA_INVMOVE
* @sa AI_ActorThink
*/
bool G_ActorInvMove (Edict* actor, const invDef_t* fromContType, Item* fItem, const invDef_t* toContType, int tx, int ty, bool checkaction)
{
Edict* floor;
bool newFloor;
Item* tc;
playermask_t mask;
inventory_action_t ia;
Item fromItemBackup, toItemBackup;
int fx, fy;
int originalTU, reservedTU = 0;
Player& player = actor->getPlayer();
assert(fItem);
assert(fItem->def());
/* Store the location/item of 'from' BEFORE actually moving items with moveInInventory. */
fromItemBackup = *fItem;
/* Store the location of 'to' BEFORE actually moving items with moveInInventory
* so in case we swap ammo the client can be updated correctly */
tc = actor->chr.inv.getItemAtPos(toContType, tx, ty);
if (tc)
toItemBackup = *tc;
else
toItemBackup = *fItem;
/* Get first used bit in item. */
fItem->getFirstShapePosition(&fx, &fy);
fx += fItem->getX();
fy += fItem->getY();
/* Check if action is possible */
/* TUs are 1 here - but this is only a dummy - the real TU check is done in the inventory functions below */
if (checkaction && !G_ActionCheckForCurrentTeam(player, actor, 1))
return false;
if (!actor->chr.inv.canHoldItemWeight(fromContType->id, toContType->id, *fItem, actor->chr.score.skills[ABILITY_POWER])) {
G_ClientPrintf(player, PRINT_HUD, _("This soldier can not carry anything else."));
return false;
}
/* "get floor ready" - searching for existing floor-edict */
floor = G_GetFloorItems(actor);
if (toContType->isFloorDef() && !floor) {
/* We are moving to the floor, but no existing edict for this floor-tile found -> create new one */
floor = G_SpawnFloor(actor->pos);
newFloor = true;
} else if (fromContType->isFloorDef() && !floor) {
/* We are moving from the floor, but no existing edict for this floor-tile found -> this should never be the case. */
gi.DPrintf("G_ClientInvMove: No source-floor found.\n");
return false;
} else {
/* There already exists an edict for this floor-tile. */
newFloor = false;
}
/* search for space */
Item* item2;
if (tx == NONE) {
item2 = actor->chr.inv.getItemAtPos(fromContType, fItem->getX(), fItem->getY());
if (item2)
actor->chr.inv.findSpace(toContType, item2, &tx, &ty, fItem);
if (tx == NONE)
return false;
}
/** @todo what if we don't have enough TUs after subtracting the reserved ones? */
/* Because moveInInventory don't know anything about character_t and it updates actor->TU,
* we need to save original actor->TU for the sake of checking TU reservations. */
originalTU = actor->TU;
reservedTU = G_ActorGetReservedTUs(actor);
/* Temporary decrease actor->TU to make moveInInventory do what expected. */
G_ActorUseTU(actor, reservedTU);
/* Try to actually move the item and check the return value after restoring valid actor->TU. */
ia = game.i.moveInInventory(&actor->chr.inv, fromContType, fItem, toContType, tx, ty, checkaction ? &actor->TU : nullptr, &item2);
/* Now restore the original actor->TU and decrease it for TU used for inventory move. */
G_ActorSetTU(actor, originalTU - (originalTU - reservedTU - actor->TU));
switch (ia) {
case IA_NONE:
/* No action possible - abort */
return false;
case IA_NOTIME:
G_ClientPrintf(player, PRINT_HUD, _("Can't perform action - not enough TUs!"));
return false;
case IA_NORELOAD:
G_ClientPrintf(player, PRINT_HUD,
_("Can't perform action - weapon already fully loaded with the same ammunition!"));
return false;
default:
/* Continue below. */
break;
}
/* successful inventory change; remove the item in clients */
if (fromContType->isFloorDef()) {
/* We removed an item from the floor - check how the client
* needs to be updated. */
assert(!newFloor);
if (actor->getFloor()) {
/* There is still something on the floor. */
floor->setFloor(actor);
/* Delay this if swapping ammo, otherwise the le will be removed in the client before we can add back
* the current ammo because removeNextFrame is set in LE_PlaceItem() if the floor le has no items */
if (ia != IA_RELOAD_SWAP)
G_EventInventoryDelete(*floor, G_VisToPM(floor->visflags), fromContType->id, fx, fy);
} else {
/* Floor is empty, remove the edict (from server + client) if we are
* not moving to it. */
if (!toContType->isFloorDef()) {
G_EventPerish(*floor);
G_FreeEdict(floor);
} else
G_EventInventoryDelete(*floor, G_VisToPM(floor->visflags), fromContType->id, fx, fy);
}
} else {
G_EventInventoryDelete(*actor, G_TeamToPM(actor->team), fromContType->id, fx, fy);
}
/* send tu's */
G_SendStats(*actor);
assert(item2);
Item item = *item2;
if (ia == IA_RELOAD || ia == IA_RELOAD_SWAP) {
/* reload */
if (toContType->isFloorDef())
mask = G_VisToPM(floor->visflags);
else
mask = G_TeamToPM(actor->team);
G_EventInventoryReload(toContType->isFloorDef() ? *floor : *actor, mask, &item, toContType, item2);
if (ia == IA_RELOAD) {
return true;
} else { /* ia == IA_RELOAD_SWAP */
item.setAmmoLeft(NONE_AMMO);
item.setAmmoDef(nullptr);
item.setDef(toItemBackup.ammoDef());
item.rotated = fromItemBackup.rotated;
item.setAmount(toItemBackup.getAmount());
toContType = fromContType;
if (toContType->isFloorDef()) {
/* moveInInventory placed the swapped ammo in an available space, check where it was placed
* so we can place it at the same place in the client, otherwise since fItem hasn't been removed
* this could end in a different place in the client - will cause an error if trying to use it again */
item2 = actor->chr.inv.findInContainer(toContType->id, &item);
assert(item2);
fromItemBackup = item;
fromItemBackup.setX(item2->getX());
fromItemBackup.setY(item2->getY());
}
tx = fromItemBackup.getX();
ty = fromItemBackup.getY();
}
}
/* We moved an item to the floor - check how the client needs to be updated. */
if (toContType->isFloorDef()) {
/* we have to link the temp floor container to the new floor edict or add
* the item to an already existing floor edict - the floor container that
* is already linked might be from a different entity (this might happen
* in case of a throw by another actor) */
floor->setFloor(actor);
/* A new container was created for the floor. */
if (newFloor) {
/* Send item info to the clients */
G_CheckVis(floor);
} else {
/* use the backup item to use the old amount values, because the clients have to use the same actions
* on the original amount. Otherwise they would end in a different amount of items as the server (+1) */
G_EventInventoryAdd(*floor, G_VisToPM(floor->visflags), 1);
G_WriteItem(fromItemBackup, toContType->id, tx, ty);
G_EventEnd();
/* Couldn't remove it before because that would remove the le from the client and would cause battlescape to crash
* when trying to add back the swapped ammo above */
if (ia == IA_RELOAD_SWAP)
G_EventInventoryDelete(*floor, G_VisToPM(floor->visflags), fromContType->id, fx, fy);
}
} else {
G_EventInventoryAdd(*actor, G_TeamToPM(actor->team), 1);
G_WriteItem(item, toContType->id, tx, ty);
G_EventEnd();
}
G_ReactionFireSettingsUpdate(actor, actor->chr.RFmode.getFmIdx(), actor->chr.RFmode.getHand(), actor->chr.RFmode.getWeapon());
/* Other players receive weapon info only. */
mask = G_VisToPM(actor->visflags) & ~G_TeamToPM(actor->team);
if (mask) {
if (fromContType->isRightDef() || fromContType->isLeftDef()) {
G_EventInventoryDelete(*actor, mask, fromContType->id, fx, fy);
}
if (toContType->isRightDef() || toContType->isLeftDef()) {
G_EventInventoryAdd(*actor, mask, 1);
G_WriteItem(item, toContType->id, tx, ty);
G_EventEnd();
}
}
return true;
}
