Example #1
0
void CBuilderCAI::ExecuteReclaim(Command& c)
{
	CBuilder* builder = (CBuilder*) owner;

	// not all builders are reclaim-capable by default
	if (!owner->unitDef->canReclaim)
		return;

	if (c.params.size() == 1 || c.params.size() == 5) {
		const int signedId = (int) c.params[0];

		if (signedId < 0) {
			LOG_L(L_WARNING, "Trying to reclaim unit or feature with id < 0 (%i), aborting.", signedId);
			return;
		}

		const unsigned int uid = signedId;

		//FIXME add a per-unit solution to better balance the load?
		const bool checkForBetterTarget = (gs->frameNum % (5 * UNIT_SLOWUPDATE_RATE)) < UNIT_SLOWUPDATE_RATE;
		if (checkForBetterTarget && (c.options & INTERNAL_ORDER) && (c.params.size() >= 5)) {
			// regular check if there is a closer reclaim target
			CSolidObject* obj;
			if (uid >= uh->MaxUnits()) {
				obj = featureHandler->GetFeature(uid - uh->MaxUnits());
			} else {
				obj = uh->GetUnit(uid);
			}
			if (obj) {
				const float3 pos(c.params[1], c.params[2], c.params[3]);
				const float radius = c.params[4];
				const float curdist = pos.SqDistance2D(obj->pos);

				const bool recUnits = !!(c.options & META_KEY);
				const bool recEnemyOnly = (c.options & META_KEY) && (c.options & CONTROL_KEY);
				const bool recSpecial = !!(c.options & CONTROL_KEY);

				ReclaimOption recopt = REC_NORESCHECK;
				if (recUnits)     recopt |= REC_UNITS;
				if (recEnemyOnly) recopt |= REC_ENEMYONLY;
				if (recSpecial)   recopt |= REC_SPECIAL;
				
				const int rid = FindReclaimTarget(pos, radius, c.options, recopt, curdist);
				if ((rid > 0) && (rid != uid)) {
					FinishCommand();
					RemoveUnitFromReclaimers(owner);
					RemoveUnitFromFeatureReclaimers(owner);
					return;
				}
			}
		}

		if (uid >= uh->MaxUnits()) { // reclaim feature
			CFeature* feature = featureHandler->GetFeature(uid - uh->MaxUnits());

			if (feature != NULL) {
				bool featureBeingResurrected = IsFeatureBeingResurrected(feature->id, owner);
				featureBeingResurrected &= (c.options & INTERNAL_ORDER) && !(c.options & CONTROL_KEY);

				if (featureBeingResurrected || !ReclaimObject(feature)) {
					StopMove();
					FinishCommand();
					RemoveUnitFromFeatureReclaimers(owner);
				} else {
					AddUnitToFeatureReclaimers(owner);
				}
			} else {
				StopMove();
				FinishCommand();
				RemoveUnitFromFeatureReclaimers(owner);
			}

			RemoveUnitFromReclaimers(owner);
		} else { // reclaim unit
			CUnit* unit = uh->GetUnit(uid);

			if (unit != NULL && c.params.size() == 5) {
				const float3 pos(c.params[1], c.params[2], c.params[3]);
				const float radius = c.params[4] + 100.0f; // do not walk too far outside reclaim area

				const bool outOfReclaimRange =
					(pos.SqDistance2D(unit->pos) > radius * radius) ||
					(builder->curReclaim == unit && unit->isMoving && !IsInBuildRange(unit));
				const bool busyAlliedBuilder =
					unit->unitDef->builder &&
					!unit->commandAI->commandQue.empty() &&
					teamHandler->Ally(owner->allyteam, unit->allyteam);

				if (outOfReclaimRange || busyAlliedBuilder) {
					StopMove();
					RemoveUnitFromReclaimers(owner);
					FinishCommand();
					RemoveUnitFromFeatureReclaimers(owner);
					return;
				}
			}

			if (unit != NULL && unit != owner && unit->unitDef->reclaimable && UpdateTargetLostTimer(unit->id) && unit->AllowedReclaim(owner)) {
				if (!ReclaimObject(unit)) {
					StopMove();
					FinishCommand();
				} else {
					AddUnitToReclaimers(owner);
				}
			} else {
				RemoveUnitFromReclaimers(owner);
				FinishCommand();
			}

			RemoveUnitFromFeatureReclaimers(owner);
		}
	} else if (c.params.size() == 4) {
		// area reclaim
		const float3 pos = c.GetPos(0);
		const float radius = c.params[3];
		const bool recUnits = !!(c.options & META_KEY);
		const bool recEnemyOnly = (c.options & META_KEY) && (c.options & CONTROL_KEY);
		const bool recSpecial = !!(c.options & CONTROL_KEY);

		RemoveUnitFromReclaimers(owner);
		RemoveUnitFromFeatureReclaimers(owner);
		builder->StopBuild();

		ReclaimOption recopt = REC_NORESCHECK;
		if (recUnits)     recopt |= REC_UNITS;
		if (recEnemyOnly) recopt |= REC_ENEMYONLY;
		if (recSpecial)   recopt |= REC_SPECIAL;

		if (FindReclaimTargetAndReclaim(pos, radius, c.options, recopt)) {
			inCommand = false;
			SlowUpdate();
			return;
		}
		if(!(c.options & ALT_KEY)){
			FinishCommand();
		}
	} else {
		// wrong number of parameters
		RemoveUnitFromReclaimers(owner);
		RemoveUnitFromFeatureReclaimers(owner);
		FinishCommand();
	}
}
Example #2
0
bool AAirMoveType::MoveToRepairPad() {
	CUnit* airBase = reservedPad->GetUnit();

	if (airBase->beingBuilt || airBase->stunned) {
		// pad became inoperable after being reserved
		DependentDied(airBase);
		return false;
	} else {
		const float3& relPadPos = airBase->script->GetPiecePos(reservedPad->GetPiece());
		const float3 absPadPos = airBase->pos +
			(airBase->frontdir * relPadPos.z) +
			(airBase->updir    * relPadPos.y) +
			(airBase->rightdir * relPadPos.x);

		if (padStatus == 0) {
			// approaching pad
			if (aircraftState != AIRCRAFT_FLYING && aircraftState != AIRCRAFT_TAKEOFF) {
				SetState(AIRCRAFT_FLYING);
			}

			goalPos = absPadPos;

			if (absPadPos.SqDistance2D(owner->pos) < (400.0f * 400.0f)) {
				padStatus = 1;
			}
		} else if (padStatus == 1) {
			// landing on pad
			const AircraftState landingState = GetLandingState();
			if (aircraftState != landingState)
				SetState(landingState);

			goalPos = absPadPos;
			reservedLandingPos = absPadPos;
			wantedHeight = absPadPos.y - ground->GetHeightAboveWater(absPadPos.x, absPadPos.z);

			if ((owner->pos.SqDistance(absPadPos) < SQUARE_SIZE * SQUARE_SIZE) || aircraftState == AIRCRAFT_LANDED) {
				padStatus = 2;
			}
		} else {
			// taking off from pad
			if (aircraftState != AIRCRAFT_LANDED) {
				SetState(AIRCRAFT_LANDED);
			}

			owner->pos = absPadPos;

			owner->UpdateMidPos();
			owner->AddBuildPower(airBase->unitDef->buildSpeed / GAME_SPEED, airBase);

			owner->currentFuel += (owner->unitDef->maxFuel / (GAME_SPEED * owner->unitDef->refuelTime));
			owner->currentFuel = std::min(owner->unitDef->maxFuel, owner->currentFuel);

			if (owner->health >= owner->maxHealth - 1.0f && owner->currentFuel >= owner->unitDef->maxFuel) {
				// repaired and filled up, leave the pad
				UnreservePad(reservedPad);
			}
		}
	}

	return true;
}
Example #3
0
/*
Removes and return the next waypoint in the multipath corresponding to given id.
*/
float3 CPathManager::NextWaypoint(unsigned int pathId, float3 callerPos, float minDistance,
		int numRetries, int ownerId, bool synced) const
{
	SCOPED_TIMER("PFS");

	// 0 indicates a no-path id
	if (pathId == 0)
		return float3(-1.0f, -1.0f, -1.0f);

	if (numRetries > 4)
		return float3(-1.0f, -1.0f, -1.0f);

	//Find corresponding multipath.
	std::map<unsigned int, MultiPath*>::const_iterator pi = pathMap.find(pathId);
	if (pi == pathMap.end())
		return float3(-1.0f, -1.0f, -1.0f);
	MultiPath* multiPath = pi->second;

	if (callerPos == ZeroVector) {
		if (!multiPath->detailedPath.path.empty())
			callerPos = multiPath->detailedPath.path.back();
	}

	// check if detailed path needs bettering
	if (!multiPath->estimatedPath.path.empty() &&
		(multiPath->estimatedPath.path.back().SqDistance2D(callerPos) < Square(MIN_DETAILED_DISTANCE * SQUARE_SIZE) ||
		multiPath->detailedPath.path.size() <= 2)) {

		if (!multiPath->estimatedPath2.path.empty() &&  // if so, check if estimated path also needs bettering
			(multiPath->estimatedPath2.path.back().SqDistance2D(callerPos) < Square(MIN_ESTIMATE_DISTANCE * SQUARE_SIZE) ||
			multiPath->estimatedPath.path.size() <= 2)) {

			Estimate2ToEstimate(*multiPath, callerPos, ownerId, synced);
		}

		if (multiPath->caller) {
			multiPath->caller->UnBlock();
		}

		EstimateToDetailed(*multiPath, callerPos, ownerId);

		if (multiPath->caller) {
			multiPath->caller->Block();
		}
	}

	float3 waypoint;
	do {
		// get the next waypoint from the high-res path
		//
		// if this is not possible, then either we are
		// at the goal OR the path could not reach all
		// the way to it (ie. a GoalOutOfRange result)
		if (multiPath->detailedPath.path.empty()) {
			if (multiPath->estimatedPath2.path.empty() && multiPath->estimatedPath.path.empty()) {
				if (multiPath->searchResult == IPath::Ok) {
					return multiPath->finalGoal;
				} else {
					return float3(-1.0f, -1.0f, -1.0f);
				}
			} else {
				return NextWaypoint(pathId, callerPos, minDistance, numRetries + 1, ownerId, synced);
			}
		} else {
			waypoint = multiPath->detailedPath.path.back();
			multiPath->detailedPath.path.pop_back();
		}
	} while (callerPos.SqDistance2D(waypoint) < Square(minDistance) && waypoint != multiPath->detailedPath.pathGoal);

	return waypoint;
}
Example #4
0
/**
* @brief Causes this CMobileCAI to execute the attack order c
*/
void CMobileCAI::ExecuteAttack(Command &c)
{
	assert(owner->unitDef->canAttack);

	// limit how far away we fly
	if (tempOrder && (owner->moveState < 2) && orderTarget
			&& LinePointDist(ClosestPointOnLine(commandPos1, commandPos2, owner->pos),
					commandPos2, orderTarget->pos)
			> (500 * owner->moveState + owner->maxRange)) {
		StopMove();
		FinishCommand();
		return;
	}

	// check if we are in direct command of attacker
	if (!inCommand) {
		// don't start counting until the owner->AttackGround() order is given
		owner->commandShotCount = -1;

		if (c.params.size() == 1) {
			CUnit* targetUnit = uh->GetUnit(c.params[0]);

			// check if we have valid target parameter and that we aren't attacking ourselves
			if (targetUnit != NULL && targetUnit != owner) {
				float3 fix = targetUnit->pos + owner->posErrorVector * 128;
				float3 diff = float3(fix - owner->pos).Normalize();

				SetGoal(fix - diff * targetUnit->radius, owner->pos);

				orderTarget = targetUnit;
				AddDeathDependence(orderTarget);
				inCommand = true;
			} else {
				// unit may not fire on itself, cancel order
				StopMove();
				FinishCommand();
				return;
			}
		}
		else if (c.params.size() >= 3) {
			// user gave force-fire attack command
			float3 pos(c.params[0], c.params[1], c.params[2]);
			SetGoal(pos, owner->pos);
			inCommand = true;
		}
	}
	else if ((c.params.size() == 3) && (owner->commandShotCount > 0) && (commandQue.size() > 1)) {
		// the trailing CMD_SET_WANTED_MAX_SPEED in a command pair does not count
		if ((commandQue.size() > 2) || (commandQue.back().id != CMD_SET_WANTED_MAX_SPEED)) {
			StopMove();
			FinishCommand();
			return;
		}
	}

	// 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) {
		//bool b1 = owner->AttackUnit(orderTarget, c.id == CMD_DGUN);
		bool b2 = false;
		bool b3 = false;
		bool b4 = false;
		float edgeFactor = 0.f; // percent offset to target center
		float3 diff = owner->pos - orderTarget->midPos;

		if (owner->weapons.size() > 0) {
			if (!(c.options & ALT_KEY) && SkipParalyzeTarget(orderTarget)) {
				StopMove();
				FinishCommand();
				return;
			}
			CWeapon* w = owner->weapons.front();
			// if we have at least one weapon then check if we
			// can hit target with our first (meanest) one
			b2 = w->TryTargetRotate(orderTarget, c.id == CMD_DGUN);
			b3 = Square(w->range - (w->relWeaponPos).Length())
					> (orderTarget->pos.SqDistance(owner->pos));
			b4 = w->TryTargetHeading(GetHeadingFromVector(-diff.x, -diff.z),
					orderTarget->pos, orderTarget != NULL, orderTarget);
			edgeFactor = fabs(w->targetBorder);
		}

		float diffLength2d = diff.Length2D();

		// 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 (b2) {
			if (!(tempOrder && owner->moveState == 0)
				&& (diffLength2d * 1.4f > owner->maxRange
					- orderTarget->speed.SqLength()
							/ owner->unitDef->maxAcc)
				&& b4 && diff.dot(orderTarget->speed) < 0)
			{
				SetGoal(owner->pos + (orderTarget->speed * 80), owner->pos,
						SQUARE_SIZE, orderTarget->speed.Length() * 1.1f);
			} else {
				StopMove();
				// FIXME kill magic frame number
				if (gs->frameNum > lastCloseInTry + MAX_CLOSE_IN_RETRY_TICKS) {
					owner->moveType->KeepPointingTo(orderTarget->midPos,
							std::min((float) owner->losRadius * loshandler->losDiv,
								owner->maxRange * 0.9f), true);
				}
			}
			owner->AttackUnit(orderTarget, c.id == CMD_DGUN);
		}

		// 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 == 0) {
			StopMove();
			FinishCommand();
			return;
		}

		// if ((our movetype has type TAAirMoveType 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(diffLength2d < (owner->maxRange * 0.9f)){
			if (dynamic_cast<CTAAirMoveType*>(owner->moveType)
					|| (diff.SqLength2D() < 1024))
			{
				StopMove();
				owner->moveType->KeepPointingTo(orderTarget->midPos,
						std::min((float) owner->losRadius * loshandler->losDiv,
							owner->maxRange * 0.9f), 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 && b3 && diffLength2d < (owner->maxRange * 0.9f))
			{
				moveDir ^= (owner->moveType->progressState == AMoveType::Failed);
				float sin = moveDir ? 3.0/5 : -3.0/5;
				float cos = 4.0/5;
				float3 goalDiff(0, 0, 0);
				goalDiff.x = diff.dot(float3(cos, 0, -sin));
				goalDiff.z = diff.dot(float3(sin, 0, cos));
				goalDiff *= (diffLength2d < (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 ((orderTarget->pos + owner->posErrorVector * 128).SqDistance2D(goalPos)
				> Square(10 + orderTarget->pos.distance2D(owner->pos) * 0.2f)) {
			// 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)
			float3 fix = orderTarget->pos +
					(orderTarget->losStatus[owner->allyteam] & LOS_INLOS ?
						float3(0.f,0.f,0.f) :
						owner->posErrorVector * 128);
			float3 norm = float3(fix - owner->pos).Normalize();
			float3 goal = fix - norm*(orderTarget->radius*edgeFactor*0.8f);
			SetGoal(goal, owner->pos);
			if (lastCloseInTry < gs->frameNum + MAX_CLOSE_IN_RETRY_TICKS)
				lastCloseInTry = gs->frameNum;
		}
	}

	// user is attacking ground
	else if (c.params.size() >= 3) {
		const float3 pos(c.params[0], c.params[1], c.params[2]);
		const float3 diff = owner->pos - pos;

		if (owner->weapons.size() > 0) {
			// if we have at least one weapon then check if
			// we can hit position with our first (assumed
			// to be meanest) one
			CWeapon* w = owner->weapons.front();

			// XXX hack - dgun overrides any checks
			if (c.id == CMD_DGUN) {
				float rr = owner->maxRange * owner->maxRange;

				for (vector<CWeapon*>::iterator it = owner->weapons.begin();
						it != owner->weapons.end(); ++it) {

					if (dynamic_cast<CDGunWeapon*>(*it))
						rr = (*it)->range * (*it)->range;
				}

				if (diff.SqLength() < rr) {
					StopMove();
					owner->AttackGround(pos, c.id == CMD_DGUN);
					owner->moveType->KeepPointingTo(pos, owner->maxRange * 0.9f, true);
				}
			} else {
				const bool inAngle = w->TryTargetRotate(pos, c.id == CMD_DGUN);
				const bool inRange = diff.SqLength2D() < Square(w->range - (w->relWeaponPos).Length2D());

				if (inAngle || inRange) {
					StopMove();
					owner->AttackGround(pos, c.id == CMD_DGUN);
					owner->moveType->KeepPointingTo(pos, owner->maxRange * 0.9f, true);
				}
			}
		}

		else if (diff.SqLength2D() < 1024) {
			StopMove();
			owner->moveType->KeepPointingTo(pos, owner->maxRange * 0.9f, true);
		}

		// if we are more than 10 units distant from target position then keeping moving closer
		else if (pos.SqDistance2D(goalPos) > 100) {
			SetGoal(pos, owner->pos);
		}
	}
}