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#include "StdAfx.h"
#include "mmgr.h"
#include "AirBaseHandler.h"
#include "GlobalSynced.h"
#include "Sim/Misc/TeamHandler.h"
#include "Sim/Units/Unit.h"
#include "Sim/Units/COB/CobInstance.h"
#include "Sim/Units/UnitDef.h"
#include "creg/STL_List.h"
#include "creg/STL_Set.h"
CAirBaseHandler* airBaseHandler = 0;
CR_BIND(CAirBaseHandler, )
CR_REG_METADATA(CAirBaseHandler,(
CR_MEMBER(freeBases),
CR_MEMBER(bases),
CR_MEMBER(airBaseIDs),
CR_RESERVED(16)
));
CR_BIND_DERIVED(CAirBaseHandler::LandingPad, CObject, (NULL, 0, NULL));
CR_REG_METADATA_SUB(CAirBaseHandler, LandingPad, (
CR_MEMBER(unit),
CR_MEMBER(piece),
CR_MEMBER(base),
CR_RESERVED(8)
));
CR_BIND(CAirBaseHandler::AirBase, (NULL))
CR_REG_METADATA_SUB(CAirBaseHandler, AirBase, (
CR_MEMBER(unit),
CR_MEMBER(freePads),
CR_MEMBER(pads),
CR_RESERVED(8)
));
CAirBaseHandler::CAirBaseHandler(void) : freeBases(teamHandler->ActiveAllyTeams()), bases(teamHandler->ActiveAllyTeams())
{
}
CAirBaseHandler::~CAirBaseHandler(void)
{
// should not be any bases left here...
for (int a = 0; a < teamHandler->ActiveAllyTeams(); ++a) {
for (AirBaseLstIt bi = bases[a].begin(); bi != bases[a].end(); ++bi) {
for (PadLstIt pi = (*bi)->pads.begin(); pi != (*bi)->pads.end(); ++pi) {
delete *pi;
}
delete *bi;
}
}
}
void CAirBaseHandler::RegisterAirBase(CUnit* base)
{
// prevent a unit from being registered as a base more than
// once (this can happen eg. when an airbase unit is damaged
// and then repaired back to full health, which causes it to
// re-register itself via FinishedBuilding())
if (airBaseIDs.find(base->id) != airBaseIDs.end()) {
return;
}
AirBase* ab = new AirBase(base);
std::vector<int> args;
base->script->QueryLandingPads(/*out*/ args);
// FIXME: use a set to avoid multiple bases per piece?
for (int p = 0; p < (int)args.size(); p++) {
const int piece = args[p];
if (!base->script->PieceExists(piece)) {
continue;
}
LandingPad* pad = new LandingPad(base, piece, ab);
ab->pads.push_back(pad);
ab->freePads.push_back(pad);
}
freeBases[base->allyteam].push_back(ab);
bases[base->allyteam].push_back(ab);
airBaseIDs.insert(base->id);
}
void CAirBaseHandler::DeregisterAirBase(CUnit* base)
{
if (airBaseIDs.find(base->id) == airBaseIDs.end()) {
return;
}
for (AirBaseLstIt bi = freeBases[base->allyteam].begin(); bi != freeBases[base->allyteam].end(); ++bi) {
if ((*bi)->unit == base) {
freeBases[base->allyteam].erase(bi);
break;
}
}
for (AirBaseLstIt bi = bases[base->allyteam].begin(); bi != bases[base->allyteam].end(); ++bi) {
if ((*bi)->unit == base) {
for (PadLstIt pi = (*bi)->pads.begin(); pi != (*bi)->pads.end(); ++pi) {
// the unit that has reserved a pad is responsible to see if the pad is gone so just delete it
delete *pi;
}
delete *bi;
bases[base->allyteam].erase(bi);
break;
}
}
airBaseIDs.erase(base->id);
}
/** @brief Try to find an airbase and reserve it if one can be found
Caller must call LeaveLandingPad if it gets one and is finished with it or dies
it's the callers responsibility to detect if the base dies while its reserved. */
CAirBaseHandler::LandingPad* CAirBaseHandler::FindAirBase(CUnit* unit, float minPower)
{
float closest = 1e30f;
PadLstIt foundPad;
AirBaseLstIt foundBase = freeBases[unit->allyteam].end();
for (AirBaseLstIt bi = freeBases[unit->allyteam].begin(); bi != freeBases[unit->allyteam].end(); ++bi) {
CUnit* baseUnit = (*bi)->unit;
if (unit == baseUnit) {
// don't pick ourselves as a landing pad
continue;
}
if (baseUnit->pos.SqDistance(unit->pos) >= closest || baseUnit->unitDef->buildSpeed < minPower) {
continue;
}
closest = baseUnit->pos.SqDistance(unit->pos);
for (PadLstIt pi = (*bi)->freePads.begin(); pi != (*bi)->freePads.end(); ++pi) {
foundPad = pi;
foundBase = bi;
}
}
if (foundBase != freeBases[unit->allyteam].end()) {
LandingPad* found = *foundPad;
(*foundBase)->freePads.erase(foundPad);
return found;
}
return 0;
}
void CAirBaseHandler::LeaveLandingPad(LandingPad* pad)
{
pad->GetBase()->freePads.push_back(pad);
}
/** @brief Try to find the closest airbase even if it's reserved */
float3 CAirBaseHandler::FindClosestAirBasePos(CUnit* unit, float minPower)
{
float closest = 1e30f;
AirBaseLstIt foundBase = freeBases[unit->allyteam].end();
for (AirBaseLstIt bi = freeBases[unit->allyteam].begin(); bi != freeBases[unit->allyteam].end(); ++bi) {
CUnit* baseUnit = (*bi)->unit;
if (unit == baseUnit) {
// don't pick ourselves as a landing pad
continue;
}
if (baseUnit->pos.SqDistance(unit->pos) >= closest || baseUnit->unitDef->buildSpeed < minPower) {
continue;
}
closest = baseUnit->pos.SqDistance(unit->pos);
foundBase = bi;
}
if (foundBase != freeBases[unit->allyteam].end()) {
return (*foundBase)->unit->pos;
}
return ZeroVector;
}
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