void CCommandAI::ExecuteAttack(Command& c)
{
assert(owner->unitDef->canAttack);
if (inCommand) {
if (targetDied || (c.params.size() == 1 && UpdateTargetLostTimer(int(c.params[0])) == 0)) {
FinishCommand();
return;
}
if (!(c.options & ALT_KEY) && SkipParalyzeTarget(orderTarget)) {
FinishCommand();
return;
}
} else {
if (c.params.size() == 1) {
CUnit* targetUnit = unitHandler->GetUnit(c.params[0]);
if (targetUnit == NULL) { FinishCommand(); return; }
if (targetUnit == owner) { FinishCommand(); return; }
if (targetUnit->GetTransporter() != NULL && !modInfo.targetableTransportedUnits) {
FinishCommand(); return;
}
SetOrderTarget(targetUnit);
owner->AttackUnit(targetUnit, (c.options & INTERNAL_ORDER) == 0, c.GetID() == CMD_MANUALFIRE);
inCommand = true;
} else {
owner->AttackGround(c.GetPos(0), (c.options & INTERNAL_ORDER) == 0, c.GetID() == CMD_MANUALFIRE);
inCommand = true;
}
}
}
bool CAirCAI::SelectNewAreaAttackTargetOrPos(const Command& ac) {
assert(ac.GetID() == CMD_AREA_ATTACK || (ac.GetID() == CMD_ATTACK && ac.GetParamsCount() >= 3));
if (ac.GetID() == CMD_ATTACK) {
FinishCommand();
return false;
}
const float3& pos = ac.GetPos(0);
const float radius = ac.params[3];
std::vector<int> enemyUnitIDs;
CGameHelper::GetEnemyUnits(pos, radius, owner->allyteam, enemyUnitIDs);
if (enemyUnitIDs.empty()) {
float3 attackPos = pos + (gs->randVector() * radius);
attackPos.y = CGround::GetHeightAboveWater(attackPos.x, attackPos.z);
owner->AttackGround(attackPos, (ac.options & INTERNAL_ORDER) == 0, false);
SetGoal(attackPos, owner->pos);
} else {
// note: the range of randFloat() is inclusive of 1.0f
const unsigned int unitIdx = std::min<int>(gs->randFloat() * enemyUnitIDs.size(), enemyUnitIDs.size() - 1);
const unsigned int unitID = enemyUnitIDs[unitIdx];
CUnit* targetUnit = unitHandler->GetUnitUnsafe(unitID);
SetOrderTarget(targetUnit);
owner->AttackUnit(targetUnit, (ac.options & INTERNAL_ORDER) == 0, false);
SetGoal(targetUnit->pos, owner->pos);
}
return true;
}
void CAirCAI::ExecuteAreaAttack(Command& c)
{
assert(owner->unitDef->canAttack);
// FIXME: check owner->UsingScriptMoveType() and skip rest if true?
AAirMoveType* myPlane = GetStrafeAirMoveType(owner);
if (targetDied) {
targetDied = false;
inCommand = false;
}
const float3& pos = c.GetPos(0);
const float radius = c.params[3];
if (inCommand) {
if (myPlane->aircraftState == AAirMoveType::AIRCRAFT_LANDED)
inCommand = false;
if (orderTarget && orderTarget->pos.SqDistance2D(pos) > Square(radius)) {
inCommand = false;
// target wandered out of the attack-area
SetOrderTarget(NULL);
SelectNewAreaAttackTargetOrPos(c);
}
} else {
if (myPlane->aircraftState != AAirMoveType::AIRCRAFT_LANDED) {
inCommand = true;
SelectNewAreaAttackTargetOrPos(c);
}
}
}
void CAirCAI::ExecuteAttack(Command& c)
{
assert(owner->unitDef->canAttack);
targetAge++;
if (tempOrder && owner->moveState == MOVESTATE_MANEUVER) {
// limit how far away we fly
if (orderTarget && LinePointDist(commandPos1, commandPos2, orderTarget->pos) > 1500) {
owner->AttackUnit(NULL, false, false);
FinishCommand();
return;
}
}
if (inCommand) {
if (targetDied || (c.params.size() == 1 && UpdateTargetLostTimer(int(c.params[0])) == 0)) {
FinishCommand();
return;
}
if (orderTarget != NULL) {
if (orderTarget->unitDef->canfly && orderTarget->IsCrashing()) {
owner->AttackUnit(NULL, false, false);
FinishCommand();
return;
}
if (!(c.options & ALT_KEY) && SkipParalyzeTarget(orderTarget)) {
owner->AttackUnit(NULL, false, false);
FinishCommand();
return;
}
}
} else {
targetAge = 0;
if (c.params.size() == 1) {
CUnit* targetUnit = unitHandler->GetUnit(c.params[0]);
if (targetUnit == NULL) { FinishCommand(); return; }
if (targetUnit == owner) { FinishCommand(); return; }
if (targetUnit->GetTransporter() != NULL && !modInfo.targetableTransportedUnits) {
FinishCommand(); return;
}
SetGoal(targetUnit->pos, owner->pos, cancelDistance);
SetOrderTarget(targetUnit);
owner->AttackUnit(targetUnit, (c.options & INTERNAL_ORDER) == 0, false);
inCommand = true;
} else {
SetGoal(c.GetPos(0), owner->pos, cancelDistance);
owner->AttackGround(c.GetPos(0), (c.options & INTERNAL_ORDER) == 0, false);
inCommand = true;
}
}
}
void CCommandAI::FinishCommand()
{
assert(!commandQue.empty());
const Command cmd = commandQue.front();
const int cmdID = cmd.GetID();
const int cmdTag = cmd.tag;
const bool dontRepeat = (cmd.options & INTERNAL_ORDER);
if (repeatOrders
&& !dontRepeat
&& (cmdID != CMD_STOP)
&& (cmdID != CMD_PATROL)
&& (cmdID != CMD_SET_WANTED_MAX_SPEED)){
commandQue.push_back(commandQue.front());
}
commandQue.pop_front();
inCommand = false;
targetDied = false;
unimportantMove = false;
SetOrderTarget(NULL);
eoh->CommandFinished(*owner, cmd);
eventHandler.UnitCmdDone(owner, cmdID, cmdTag);
ClearTargetLock(cmd);
if (commandQue.empty()) {
if (!owner->group) {
eoh->UnitIdle(*owner);
}
eventHandler.UnitIdle(owner);
}
// avoid infinite loops
if (lastFinishCommand != gs->frameNum) {
lastFinishCommand = gs->frameNum;
if (!owner->IsStunned()) {
SlowUpdate();
}
}
}
void CCommandAI::ExecuteAttack(Command& c)
{
assert(owner->unitDef->canAttack);
if (inCommand) {
if (targetDied || (c.params.size() == 1 && UpdateTargetLostTimer(int(c.params[0])) == 0)) {
FinishCommand();
return;
}
if ((c.params.size() == 3) && (owner->commandShotCount > 0) && (commandQue.size() > 1)) {
FinishCommand();
return;
}
if (!(c.options & ALT_KEY) && SkipParalyzeTarget(orderTarget)) {
FinishCommand();
return;
}
}
else {
owner->commandShotCount = -1;
if (c.params.size() == 1) {
CUnit* targetUnit = uh->GetUnit(c.params[0]);
if (targetUnit != NULL && targetUnit != owner) {
owner->AttackUnit(targetUnit, c.GetID() == CMD_MANUALFIRE);
SetOrderTarget(targetUnit);
inCommand = true;
} else {
FinishCommand();
return;
}
} else {
float3 pos(c.params[0], c.params[1], c.params[2]);
owner->AttackGround(pos, c.GetID() == CMD_MANUALFIRE);
inCommand = true;
}
}
}
void CCommandAI::ExecuteInsert(const Command& c, bool fromSynced)
{
if (c.params.size() < 3) {
return;
}
// make the command
Command newCmd((int)c.params[1], (unsigned char)c.params[2]);
for (int p = 3; p < (int)c.params.size(); p++) {
newCmd.params.push_back(c.params[p]);
}
// validate the command
if (!AllowedCommand(newCmd, fromSynced)) {
return;
}
CCommandQueue* queue = &commandQue;
bool facBuildQueue = false;
CFactoryCAI* facCAI = dynamic_cast<CFactoryCAI*>(this);
if (facCAI) {
if (c.options & CONTROL_KEY) {
// check the build order
const map<int, CFactoryCAI::BuildOption>& bOpts = facCAI->buildOptions;
if ((newCmd.GetID() != CMD_STOP) && (newCmd.GetID() != CMD_WAIT) &&
((newCmd.GetID() >= 0) || (bOpts.find(newCmd.GetID()) == bOpts.end()))) {
return;
}
facBuildQueue = true;
} else {
// use the new commands
queue = &facCAI->newUnitCommands;
}
}
// FIXME: handle CMD_LOOPBACKATTACK, etc...
CCommandQueue::iterator insertIt = queue->begin();
if (c.options & ALT_KEY) {
// treat param0 as a position
int pos = (int)c.params[0];
const unsigned int qsize = queue->size();
if (pos < 0) {
pos = qsize + pos + 1; // convert the negative index
if (pos < 0) {
pos = 0;
}
}
if (pos > qsize) {
pos = qsize;
}
std::advance(insertIt, pos);
}
else {
// treat param0 as a command tag
const unsigned int tag = (unsigned int)c.params[0];
CCommandQueue::iterator ci;
bool found = false;
for (ci = queue->begin(); ci != queue->end(); ++ci) {
const Command& qc = *ci;
if (qc.tag == tag) {
insertIt = ci;
found = true;
break;
}
}
if (!found) {
return;
}
if ((c.options & RIGHT_MOUSE_KEY) && (insertIt != queue->end())) {
++insertIt; // insert after the tagged command
}
}
if (facBuildQueue) {
facCAI->InsertBuildCommand(insertIt, newCmd);
if (!owner->stunned) {
SlowUpdate();
}
return;
}
// shutdown the current order if the insertion is at the beginning
if (!queue->empty() && (insertIt == queue->begin())) {
inCommand = false;
targetDied = false;
unimportantMove = false;
SetOrderTarget(NULL);
const Command& cmd = queue->front();
eoh->CommandFinished(*owner, cmd);
eventHandler.UnitCmdDone(owner, cmd.GetID(), cmd.tag);
}
queue->insert(insertIt, newCmd);
if (!owner->stunned) {
SlowUpdate();
}
}
void CCommandAI::GiveAllowedCommand(const Command& c, bool fromSynced)
{
if (ExecuteStateCommand(c)) {
return;
}
switch (c.GetID()) {
case CMD_SELFD: {
if (owner->unitDef->canSelfD) {
if (!(c.options & SHIFT_KEY) || commandQue.empty()) {
if (owner->selfDCountdown != 0) {
owner->selfDCountdown = 0;
} else {
owner->selfDCountdown = owner->unitDef->selfDCountdown*2+1;
}
}
else if (commandQue.back().GetID() == CMD_SELFD) {
commandQue.pop_back();
} else {
commandQue.push_back(c);
}
}
return;
}
case CMD_SET_WANTED_MAX_SPEED: {
if (CanSetMaxSpeed() &&
(commandQue.empty() ||
(commandQue.back().GetID() != CMD_SET_WANTED_MAX_SPEED))) {
// bail early, do not check for overlaps or queue cancelling
commandQue.push_back(c);
if (commandQue.size()==1 && !owner->beingBuilt) {
SlowUpdate();
}
}
return;
}
case CMD_WAIT: {
GiveWaitCommand(c);
return;
}
case CMD_INSERT: {
ExecuteInsert(c, fromSynced);
return;
}
case CMD_REMOVE: {
ExecuteRemove(c);
return;
}
}
// flush the queue for immediate commands
if (!(c.options & SHIFT_KEY)) {
if (!commandQue.empty()) {
const int& cmd_id = commandQue.front().GetID();
if ((cmd_id == CMD_MANUALFIRE) ||
(cmd_id == CMD_ATTACK) ||
(cmd_id == CMD_AREA_ATTACK)) {
owner->AttackUnit(0,true);
}
waitCommandsAI.ClearUnitQueue(owner, commandQue);
ClearCommandDependencies();
commandQue.clear();
}
inCommand=false;
SetOrderTarget(NULL);
}
AddCommandDependency(c);
if (c.GetID() == CMD_PATROL) {
CCommandQueue::iterator ci = commandQue.begin();
for (; ci != commandQue.end() && ci->GetID() != CMD_PATROL; ++ci) {
// just increment
}
if (ci == commandQue.end()) {
if (commandQue.empty()) {
Command c2(CMD_PATROL, c.options);
c2.params.push_back(owner->pos.x);
c2.params.push_back(owner->pos.y);
c2.params.push_back(owner->pos.z);
commandQue.push_back(c2);
}
else {
do {
--ci;
if (ci->params.size() >= 3) {
Command c2(CMD_PATROL, c.options);
c2.params = ci->params;
commandQue.push_back(c2);
break;
} else if (ci == commandQue.begin()) {
Command c2(CMD_PATROL, c.options);
c2.params.push_back(owner->pos.x);
c2.params.push_back(owner->pos.y);
c2.params.push_back(owner->pos.z);
commandQue.push_back(c2);
break;
}
}
while (ci != commandQue.begin());
}
}
}
// cancel duplicated commands
bool first;
if (CancelCommands(c, commandQue, first) > 0) {
if (first) {
Command stopCommand(CMD_STOP);
commandQue.push_front(stopCommand);
SlowUpdate();
}
return;
}
// do not allow overlapping commands
if (!GetOverlapQueued(c).empty()) {
return;
}
if (c.GetID() == CMD_ATTACK) {
// avoid weaponless units moving to 0 distance when given attack order
if (owner->weapons.empty() && (owner->unitDef->canKamikaze == false)) {
Command c2(CMD_STOP);
commandQue.push_back(c2);
return;
}
}
commandQue.push_back(c);
if (commandQue.size() == 1 && !owner->beingBuilt && !owner->stunned) {
SlowUpdate();
}
}
CCommandAI::~CCommandAI()
{
SetOrderTarget(NULL);
ClearCommandDependencies();
}
void CMobileCAI::ExecuteAttack(Command &c)
{
assert(owner->unitDef->canAttack);
// limit how far away we fly based on our movestate
if (tempOrder && orderTarget) {
const float3& closestPos = ClosestPointOnLine(commandPos1, commandPos2, owner->pos);
const float curTargetDist = LinePointDist(closestPos, commandPos2, orderTarget->pos);
const float maxTargetDist = (500 * owner->moveState + owner->maxRange);
if (owner->moveState < MOVESTATE_ROAM && curTargetDist > maxTargetDist) {
StopMove();
FinishCommand();
return;
}
}
// check if we are in direct command of attacker
if (!inCommand) {
if (c.params.size() == 1) {
CUnit* targetUnit = unitHandler->GetUnit(c.params[0]);
// check if we have valid target parameter and that we aren't attacking ourselves
if (targetUnit == NULL) { StopMove(); FinishCommand(); return; }
if (targetUnit == owner) { StopMove(); FinishCommand(); return; }
if (targetUnit->GetTransporter() != NULL && !modInfo.targetableTransportedUnits) {
StopMove(); FinishCommand(); return;
}
const float3 tgtErrPos = targetUnit->pos + owner->posErrorVector * 128;
const float3 tgtPosDir = (tgtErrPos - owner->pos).Normalize();
SetGoal(tgtErrPos - tgtPosDir * targetUnit->radius, owner->pos);
SetOrderTarget(targetUnit);
owner->AttackUnit(targetUnit, (c.options & INTERNAL_ORDER) == 0, c.GetID() == CMD_MANUALFIRE);
inCommand = true;
}
else if (c.params.size() >= 3) {
// user gave force-fire attack command
SetGoal(c.GetPos(0), owner->pos);
inCommand = true;
}
}
// if our target is dead or we lost it then stop attacking
// NOTE: unit should actually just continue to target area!
if (targetDied || (c.params.size() == 1 && UpdateTargetLostTimer(int(c.params[0])) == 0)) {
// cancel keeppointingto
StopMove();
FinishCommand();
return;
}
// user clicked on enemy unit (note that we handle aircrafts slightly differently)
if (orderTarget != NULL) {
bool tryTargetRotate = false;
bool tryTargetHeading = false;
float edgeFactor = 0.0f; // percent offset to target center
const float3 targetMidPosVec = owner->midPos - orderTarget->midPos;
const float targetGoalDist = (orderTarget->pos + owner->posErrorVector * 128.0f).SqDistance2D(goalPos);
const float targetPosDist = Square(10.0f + orderTarget->pos.distance2D(owner->pos) * 0.2f);
const float minPointingDist = std::min(1.0f * owner->losRadius * loshandler->losDiv, owner->maxRange * 0.9f);
// FIXME? targetMidPosMaxDist is 3D, but compared with a 2D value
const float targetMidPosDist2D = targetMidPosVec.Length2D();
//const float targetMidPosMaxDist = owner->maxRange - (orderTarget->speed.SqLength() / owner->unitDef->maxAcc);
if (!owner->weapons.empty()) {
if (!(c.options & ALT_KEY) && SkipParalyzeTarget(orderTarget)) {
StopMove();
FinishCommand();
return;
}
}
for (unsigned int wNum = 0; wNum < owner->weapons.size(); wNum++) {
CWeapon* w = owner->weapons[wNum];
if (c.GetID() == CMD_MANUALFIRE) {
assert(owner->unitDef->canManualFire);
if (!w->weaponDef->manualfire) {
continue;
}
}
tryTargetRotate = w->TryTargetRotate(orderTarget, (c.options & INTERNAL_ORDER) == 0);
tryTargetHeading = w->TryTargetHeading(GetHeadingFromVector(-targetMidPosVec.x, -targetMidPosVec.z), orderTarget->pos, orderTarget != NULL, orderTarget);
if (tryTargetRotate || tryTargetHeading)
break;
edgeFactor = math::fabs(w->targetBorder);
}
// if w->AttackUnit() returned true then we are already
// in range with our biggest (?) weapon, so stop moving
// also make sure that we're not locked in close-in/in-range state loop
// due to rotates invoked by in-range or out-of-range states
if (tryTargetRotate) {
const bool canChaseTarget = (!tempOrder || owner->moveState != MOVESTATE_HOLDPOS);
const bool targetBehind = (targetMidPosVec.dot(orderTarget->speed) < 0.0f);
if (canChaseTarget && tryTargetHeading && targetBehind) {
SetGoal(owner->pos + (orderTarget->speed * 80), owner->pos, SQUARE_SIZE, orderTarget->speed.Length() * 1.1f);
} else {
StopMove();
if (gs->frameNum > lastCloseInTry + MAX_CLOSE_IN_RETRY_TICKS) {
owner->moveType->KeepPointingTo(orderTarget->midPos, minPointingDist, true);
}
}
owner->AttackUnit(orderTarget, (c.options & INTERNAL_ORDER) == 0, c.GetID() == CMD_MANUALFIRE);
}
// if we're on hold pos in a temporary order, then none of the close-in
// code below should run, and the attack command is cancelled.
else if (tempOrder && owner->moveState == MOVESTATE_HOLDPOS) {
StopMove();
FinishCommand();
return;
}
// if ((our movetype has type HoverAirMoveType and length of 2D vector from us to target
// less than 90% of our maximum range) OR squared length of 2D vector from us to target
// less than 1024) then we are close enough
else if (targetMidPosDist2D < (owner->maxRange * 0.9f)) {
if (dynamic_cast<CHoverAirMoveType*>(owner->moveType) != NULL || (targetMidPosVec.SqLength2D() < 1024)) {
StopMove();
owner->moveType->KeepPointingTo(orderTarget->midPos, minPointingDist, true);
}
// if (((first weapon range minus first weapon length greater than distance to target)
// and length of 2D vector from us to target less than 90% of our maximum range)
// then we are close enough, but need to move sideways to get a shot.
//assumption is flawed: The unit may be aiming or otherwise unable to shoot
else if (owner->unitDef->strafeToAttack && targetMidPosDist2D < (owner->maxRange * 0.9f)) {
moveDir ^= (owner->moveType->progressState == AMoveType::Failed);
const float sin = moveDir ? 3.0/5 : -3.0/5;
const float cos = 4.0 / 5;
float3 goalDiff;
goalDiff.x = targetMidPosVec.dot(float3(cos, 0, -sin));
goalDiff.z = targetMidPosVec.dot(float3(sin, 0, cos));
goalDiff *= (targetMidPosDist2D < (owner->maxRange * 0.3f)) ? 1/cos : cos;
goalDiff += orderTarget->pos;
SetGoal(goalDiff, owner->pos);
}
}
// if 2D distance of (target position plus attacker error vector times 128)
// to goal position greater than
// (10 plus 20% of 2D distance between attacker and target) then we need to close
// in on target more
else if (targetGoalDist > targetPosDist) {
// if the target isn't in LOS, go to its approximate position
// otherwise try to go precisely to the target
// this should fix issues with low range weapons (mainly melee)
const float3 errPos = ((orderTarget->losStatus[owner->allyteam] & LOS_INLOS)? ZeroVector: owner->posErrorVector * 128.0f);
const float3 tgtPos = orderTarget->pos + errPos;
const float3 norm = (tgtPos - owner->pos).Normalize();
const float3 goal = tgtPos - norm * (orderTarget->radius * edgeFactor * 0.8f);
SetGoal(goal, owner->pos);
if (lastCloseInTry < gs->frameNum + MAX_CLOSE_IN_RETRY_TICKS)
lastCloseInTry = gs->frameNum;
}
}
// user wants to attack the ground; cycle through our
// weapons until we find one that can accomodate him
else if (c.params.size() >= 3) {
const float3 attackPos = c.GetPos(0);
const float3 attackVec = attackPos - owner->pos;
bool foundWeapon = false;
for (unsigned int wNum = 0; wNum < owner->weapons.size(); wNum++) {
CWeapon* w = owner->weapons[wNum];
if (foundWeapon)
break;
// XXX HACK - special weapon overrides any checks
if (c.GetID() == CMD_MANUALFIRE) {
assert(owner->unitDef->canManualFire);
if (!w->weaponDef->manualfire)
continue;
if (attackVec.SqLength() >= (w->range * w->range))
continue;
StopMove();
owner->AttackGround(attackPos, (c.options & INTERNAL_ORDER) == 0, c.GetID() == CMD_MANUALFIRE);
owner->moveType->KeepPointingTo(attackPos, owner->maxRange * 0.9f, true);
foundWeapon = true;
} else {
// NOTE:
// we call TryTargetHeading which is less restrictive than TryTarget
// (eg. the former succeeds even if the unit has not already aligned
// itself with <attackVec>)
if (w->TryTargetHeading(GetHeadingFromVector(attackVec.x, attackVec.z), attackPos, (c.options & INTERNAL_ORDER) == 0, NULL)) {
if (w->TryTargetRotate(attackPos, (c.options & INTERNAL_ORDER) == 0)) {
StopMove();
owner->AttackGround(attackPos, (c.options & INTERNAL_ORDER) == 0, c.GetID() == CMD_MANUALFIRE);
foundWeapon = true;
}
// for gunships, this pitches the nose down such that
// TryTargetRotate (which also checks range for itself)
// has a bigger chance of succeeding
//
// hence it must be called as soon as we get in range
// and may not depend on what TryTargetRotate returns
// (otherwise we might never get a firing solution)
owner->moveType->KeepPointingTo(attackPos, owner->maxRange * 0.9f, true);
}
}
}
#if 0
// no weapons --> no need to stop at an arbitrary distance?
else if (diff.SqLength2D() < 1024) {
StopMove();
owner->moveType->KeepPointingTo(attackPos, owner->maxRange * 0.9f, true);
}
#endif
// if we are unarmed and more than 10 elmos distant
// from target position, then keeping moving closer
if (owner->weapons.empty() && attackPos.SqDistance2D(goalPos) > 100) {
SetGoal(attackPos, owner->pos);
}
}