void UnitWalkBState::init()
{
_unit = _action.actor;
setNormalWalkSpeed();
_pf = _parent->getPathfinding();
_terrain = _parent->getTileEngine();
_target = _action.target;
}
/**
* Initializes the state.
*/
void UnitWalkBState::init()
{
_unit = _action.actor;
_numUnitsSpotted = _unit->getUnitsSpottedThisTurn().size();
setNormalWalkSpeed();
_pf = _parent->getPathfinding();
_terrain = _parent->getTileEngine();
_target = _action.target;
if (Options::traceAI) { Log(LOG_INFO) << "Walking from: " << _unit->getPosition() << "," << " to " << _target;}
int dir = _pf->getStartDirection();
if (!_action.strafe && dir != -1 && dir != _unit->getDirection())
{
_beforeFirstStep = true;
}
}
void UnitWalkBState::think()
{
bool unitspotted = false;
if (_unit->isOut())
{
_pf->abortPath();
_parent->popState();
return;
}
// during a walking cycle we make step sounds
if (_unit->getStatus() == STATUS_WALKING || _unit->getStatus() == STATUS_FLYING)
{
if (_unit->getVisible() && _unit->getStatus() == STATUS_WALKING)
{
if (_unit->getUnit()->getArmor()->getSize() > 1)
{
// play hwp engine sound
if (_unit->getWalkingPhase() == 0)
{
// tank with threads "walks"
if (_unit->getUnit()->getArmor()->getMovementType() == MT_WALK)
_parent->getResourcePack()->getSoundSet("BATTLE.CAT")->getSound(14)->play();
else // hovering tank hovers
_parent->getResourcePack()->getSoundSet("BATTLE.CAT")->getSound(40)->play();
}
}
else
{
// play footstep sound 1
if (_unit->getWalkingPhase() == 3)
{
Tile *tile = _unit->getTile();
if (tile->getFootstepSound())
{
_parent->getResourcePack()->getSoundSet("BATTLE.CAT")->getSound(22 + (tile->getFootstepSound()*2))->play();
}
}
// play footstep sound 2
if (_unit->getWalkingPhase() == 7)
{
Tile *tile = _unit->getTile();
if (tile->getFootstepSound())
{
_parent->getResourcePack()->getSoundSet("BATTLE.CAT")->getSound(23 + (tile->getFootstepSound()*2))->play();
}
}
}
}
_unit->keepWalking(); // advances the phase
// unit moved from one tile to the other, update the tiles
if (_unit->getPosition() != _unit->getLastPosition())
{
int size = _unit->getUnit()->getArmor()->getSize() - 1;
for (int x = size; x >= 0; x--)
{
for (int y = size; y >= 0; y--)
{
_parent->getSave()->getTile(_unit->getLastPosition() + Position(x,y,0))->setUnit(0);
}
}
for (int x = size; x >= 0; x--)
{
for (int y = size; y >= 0; y--)
{
_parent->getSave()->getTile(_unit->getPosition() + Position(x,y,0))->setUnit(_unit);
}
}
// if the unit changed level, camera changes level with
_parent->getMap()->getCamera()->setViewHeight(_unit->getPosition().z);
}
// is the step finished?
if (_unit->getStatus() == STATUS_STANDING)
{
// move our personal lighting with us
_terrain->calculateUnitLighting();
BattleAction action;
// check for proximity grenades (1 tile around the unit in every direction) (for large units, we need to check every tile it occupies)
int size = _unit->getUnit()->getArmor()->getSize() - 1;
for (int x = size; x >= 0; x--)
{
for (int y = size; y >= 0; y--)
{
for (int tx = -1; tx < 2; tx++)
{
for (int ty = -1; ty < 2; ty++)
{
Tile *t = _parent->getSave()->getTile(_unit->getPosition() + Position(x,y,0) + Position(tx,ty,0));
if (t)
for (std::vector<BattleItem*>::iterator i = t->getInventory()->begin(); i != t->getInventory()->end(); ++i)
{
if ((*i)->getRules()->getBattleType() == BT_PROXIMITYGRENADE && (*i)->getExplodeTurn() > 0)
{
Position p;
p.x = t->getPosition().x*16 + 8;
p.y = t->getPosition().y*16 + 8;
p.z = t->getPosition().z*24 + t->getTerrainLevel();
_parent->statePushNext(new ExplosionBState(_parent, p, (*i), (*i)->getPreviousOwner()));
t->getInventory()->erase(i);
return;
}
}
}
}
}
}
// check for reaction fire
if (_terrain->checkReactionFire(_unit, &action))
{
_parent->statePushBack(new ProjectileFlyBState(_parent, action));
// unit got fired upon - stop walking
_pf->abortPath();
return;
}
}
else
{
// make sure the unit sprites are up to date
_parent->getMap()->cacheUnit(_unit);
}
}
// we are just standing around, shouldn't we be walking?
if (_unit->getStatus() == STATUS_STANDING)
{
// check if we can spot new units
unitspotted = _terrain->calculateFOV(_unit);
if (unitspotted)
{
_pf->abortPath();
// a hostile unit will aggro on the new unit if it sees one - it will not start walking
if (_unit->getFaction() == FACTION_HOSTILE)
{
AggroBAIState *aggro = dynamic_cast<AggroBAIState*>(_unit->getCurrentAIState());
if (aggro == 0)
{
_unit->setAIState(new AggroBAIState(_parent->getSave(), _unit));
}
}
return;
}
if (_unit->getVisible())
{
setNormalWalkSpeed();
}
else
{
_parent->setStateInterval(1);
}
int dir = _pf->getStartDirection();
if (dir != -1)
{
Position destination;
int tu = _pf->getTUCost(_unit->getPosition(), dir, &destination, _unit); // gets tu cost, but also gets the destination position.
if (tu > _unit->getTimeUnits() && !_parent->dontSpendTUs())
{
_action.result = "STR_NOT_ENOUGH_TIME_UNITS";
_pf->abortPath();
return;
}
if (_parent->checkReservedTU(_unit, tu) == false)
{
_pf->abortPath();
return;
}
// we are looking in the wrong way, turn first
// we are not using the turn state, because turning during walking costs no tu
if (dir != _unit->getDirection() && dir < Pathfinding::DIR_UP)
{
_unit->lookAt(dir);
return;
}
// now open doors (if any)
int door = _terrain->unitOpensDoor(_unit);
if (door == 3)
{
return; // don't start walking yet, wait for the ufo door to open
}
if (door == 0)
{
_parent->getResourcePack()->getSoundSet("BATTLE.CAT")->getSound(3)->play(); // normal door
}
if (door == 1)
{
_parent->getResourcePack()->getSoundSet("BATTLE.CAT")->getSound(20)->play(); // ufo door
return; // don't start walking yet, wait for the ufo door to open
}
// now start moving
dir = _pf->dequeuePath();
if (_unit->spendTimeUnits(tu, _parent->dontSpendTUs()))
{
if (_unit->spendEnergy(tu, _parent->dontSpendTUs()))
{
_unit->startWalking(dir, destination);
}
else
{
_action.result = "STR_NOT_ENOUGH_ENERGY";
_parent->popState();
}
}
else
{
_action.result = "STR_NOT_ENOUGH_TIME_UNITS";
_parent->popState();
}
// make sure the unit sprites are up to date
_parent->getMap()->cacheUnit(_unit);
}
else
{
postPathProcedures();
return;
}
}
// turning during walking costs no tu
if (_unit->getStatus() == STATUS_TURNING)
{
_unit->turn();
unitspotted = _terrain->calculateFOV(_unit);
// make sure the unit sprites are up to date
_parent->getMap()->cacheUnit(_unit);
if (unitspotted)
{
_pf->abortPath();
return;
}
}
}
void UnitWalkBState::think()
{
bool unitspotted = false;
// during a walking cycle we make step sounds
if (_unit->getStatus() == STATUS_WALKING || _unit->getStatus() == STATUS_FLYING)
{
if (_unit->getVisible() && _unit->getStatus() == STATUS_WALKING)
{
// play footstep sound 1
if (_unit->getWalkingPhase() == 3)
{
Tile *tile = _unit->getTile();
if (tile->getFootstepSound())
{
_parent->getGame()->getResourcePack()->getSoundSet("BATTLE.CAT")->getSound(22 + (tile->getFootstepSound()*2))->play();
}
}
// play footstep sound 2
if (_unit->getWalkingPhase() == 7)
{
Tile *tile = _unit->getTile();
if (tile->getFootstepSound())
{
_parent->getGame()->getResourcePack()->getSoundSet("BATTLE.CAT")->getSound(23 + (tile->getFootstepSound()*2))->play();
}
}
}
_unit->keepWalking(); // advances the phase
// unit moved from one tile to the other, update the tiles
if (_unit->getPosition() != _unit->getLastPosition())
{
_parent->getGame()->getSavedGame()->getBattleGame()->getTile(_unit->getLastPosition())->setUnit(0); //don't change these
_parent->getGame()->getSavedGame()->getBattleGame()->getTile(_unit->getPosition())->setUnit(_unit); //don't change these
// if the unit changed level, camera changes level with
_parent->getMap()->getCamera()->setViewHeight(_unit->getPosition().z);
}
// is the step finished?
if (_unit->getStatus() == STATUS_STANDING)
{
_terrain->calculateUnitLighting();
unitspotted = _terrain->calculateFOV(_unit);
if (unitspotted)
{
_pf->abortPath();
if (_unit->getFaction() == FACTION_HOSTILE)
{
AggroBAIState *aggro = dynamic_cast<AggroBAIState*>(_unit->getCurrentAIState());
if (aggro == 0)
{
_unit->setAIState(new AggroBAIState(_parent->getGame()->getSavedGame()->getBattleGame(), _unit));
}
_parent->handleAI(_unit);
}
return;
}
BattleAction action;
if (_terrain->checkReactionFire(_unit, &action))
{
_parent->statePushBack(new ProjectileFlyBState(_parent, action));
// unit got fired upon - stop walking
_pf->abortPath();
return;
}
}
else
{
// make sure the unit sprites are up to date
_parent->getMap()->cacheUnit(_unit);
}
}
// we are just standing around, shouldn't we be walking?
if (_unit->getStatus() == STATUS_STANDING)
{
if (_unit->getVisible())
{
setNormalWalkSpeed();
}
else
{
_parent->setStateInterval(1);
}
int dir = _pf->getStartDirection();
if (dir != -1)
{
Position destination;
int tu = _pf->getTUCost(_unit->getPosition(), dir, &destination, _unit); // gets tu cost, but also gets the destination position.
if (tu > _unit->getTimeUnits() && !_parent->dontSpendTUs())
{
_result = "STR_NOT_ENOUGH_TIME_UNITS";
_pf->abortPath();
return;
}
if (_parent->checkReservedTU(_unit, tu) == false)
{
_pf->abortPath();
return;
}
// we are looking in the wrong way, turn first
// we are not using the turn state, because turning during walking costs no tu
if (dir != _unit->getDirection() && dir < Pathfinding::DIR_UP)
{
_unit->lookAt(dir);
return;
}
// now open doors (if any)
int door = _terrain->unitOpensDoor(_unit);
if (door == 3)
{
return; // don't start walking yet, wait for the ufo door to open
}
if (door == 0)
{
_parent->getGame()->getResourcePack()->getSoundSet("BATTLE.CAT")->getSound(3)->play(); // normal door
}
if (door == 1)
{
_parent->getGame()->getResourcePack()->getSoundSet("BATTLE.CAT")->getSound(20)->play(); // ufo door
return; // don't start walking yet, wait for the ufo door to open
}
// now start moving
dir = _pf->dequeuePath();
if (_unit->spendTimeUnits(tu, _parent->dontSpendTUs()))
{
if (_unit->spendEnergy(tu, _parent->dontSpendTUs()))
{
_unit->startWalking(dir, destination);
}
else
{
_result = "STR_NOT_ENOUGH_ENERGY";
_parent->popState();
}
}
else
{
_result = "STR_NOT_ENOUGH_TIME_UNITS";
_parent->popState();
}
// make sure the unit sprites are up to date
_parent->getMap()->cacheUnit(_unit);
}
else
{
postPathProcedures();
return;
}
}
// turning during walking costs no tu
if (_unit->getStatus() == STATUS_TURNING)
{
_unit->turn();
unitspotted = _terrain->calculateFOV(_unit);
// make sure the unit sprites are up to date
_parent->getMap()->cacheUnit(_unit);
if (unitspotted)
{
_pf->abortPath();
return;
}
}
}
/**
* Runs state functionality every cycle.
*/
void UnitWalkBState::think()
{
bool unitSpotted = false;
int size = _unit->getArmor()->getSize() - 1;
bool onScreen = (_unit->getVisible() && _parent->getMap()->getCamera()->isOnScreen(_unit->getPosition(), true, size, false));
if (_unit->isKneeled())
{
if (_parent->kneel(_unit))
{
_unit->setCache(0);
_terrain->calculateFOV(_unit);
_parent->getMap()->cacheUnit(_unit);
return;
}
else
{
_action.result = "STR_NOT_ENOUGH_TIME_UNITS";
_pf->abortPath();
_parent->popState();
return;
}
}
Tile *tileBelow = _parent->getSave()->getTile(_unit->getPosition() + Position(0,0,-1));
if (_unit->isOut())
{
_pf->abortPath();
_parent->popState();
return;
}
if (_unit->getStatus() == STATUS_WALKING || _unit->getStatus() == STATUS_FLYING)
{
if ((_parent->getSave()->getTile(_unit->getDestination())->getUnit() == 0) || // next tile must be not occupied
(_parent->getSave()->getTile(_unit->getDestination())->getUnit() == _unit))
{
bool onScreenBoundary = (_unit->getVisible() && _parent->getMap()->getCamera()->isOnScreen(_unit->getPosition(), true, size, true));
_unit->keepWalking(tileBelow, onScreenBoundary); // advances the phase
playMovementSound();
}
else if (!_falling)
{
_unit->lookAt(_unit->getDestination(), (_unit->getTurretType() != -1)); // turn to undiscovered unit
_pf->abortPath();
}
// unit moved from one tile to the other, update the tiles
if (_unit->getPosition() != _unit->getLastPosition())
{
bool largeCheck = true;
for (int x = size; x >= 0; x--)
{
for (int y = size; y >= 0; y--)
{
Tile *otherTileBelow = _parent->getSave()->getTile(_unit->getPosition() + Position(x,y,-1));
if (!_parent->getSave()->getTile(_unit->getPosition() + Position(x,y,0))->hasNoFloor(otherTileBelow) || _unit->getMovementType() == MT_FLY)
largeCheck = false;
_parent->getSave()->getTile(_unit->getLastPosition() + Position(x,y,0))->setUnit(0);
}
}
for (int x = size; x >= 0; x--)
{
for (int y = size; y >= 0; y--)
{
_parent->getSave()->getTile(_unit->getPosition() + Position(x,y,0))->setUnit(_unit, _parent->getSave()->getTile(_unit->getPosition() + Position(x,y,-1)));
}
}
_falling = largeCheck && _unit->getPosition().z != 0 && _unit->getTile()->hasNoFloor(tileBelow) && _unit->getMovementType() != MT_FLY && _unit->getWalkingPhase() == 0;
if (_falling)
{
for (int x = size; x >= 0; --x)
{
for (int y = size; y >= 0; --y)
{
Tile *otherTileBelow = _parent->getSave()->getTile(_unit->getPosition() + Position(x,y,-1));
if (otherTileBelow && otherTileBelow->getUnit())
{
_falling = false;
_pf->dequeuePath();
_parent->getSave()->addFallingUnit(_unit);
_parent->statePushFront(new UnitFallBState(_parent));
return;
}
}
}
}
if (!_parent->getMap()->getCamera()->isOnScreen(_unit->getPosition(), true, size, false) && _unit->getFaction() != FACTION_PLAYER && _unit->getVisible())
_parent->getMap()->getCamera()->centerOnPosition(_unit->getPosition());
// if the unit changed level, camera changes level with
_parent->getMap()->getCamera()->setViewLevel(_unit->getPosition().z);
}
// is the step finished?
if (_unit->getStatus() == STATUS_STANDING)
{
// update the TU display
_parent->getSave()->getBattleState()->updateSoldierInfo();
// if the unit burns floortiles, burn floortiles as long as we're not falling
if (!_falling && (_unit->getSpecialAbility() == SPECAB_BURNFLOOR || _unit->getSpecialAbility() == SPECAB_BURN_AND_EXPLODE))
{
_unit->getTile()->ignite(1);
Position posHere = _unit->getPosition();
Position voxelHere = (posHere * Position(16,16,24)) + Position(8,8,-(_unit->getTile()->getTerrainLevel()));
_parent->getTileEngine()->hit(voxelHere, _unit->getBaseStats()->strength, DT_IN, _unit);
if (_unit->getStatus() != STATUS_STANDING) // ie: we burned a hole in the floor and fell through it
{
_pf->abortPath();
return;
}
}
// move our personal lighting with us
_terrain->calculateUnitLighting();
if (_unit->getFaction() != FACTION_PLAYER)
{
_unit->setVisible(false);
}
_terrain->calculateFOV(_unit->getPosition());
unitSpotted = (!_falling && !_action.desperate && _parent->getPanicHandled() && _numUnitsSpotted != _unit->getUnitsSpottedThisTurn().size());
if (_parent->checkForProximityGrenades(_unit))
{
_parent->popState();
return;
}
if (unitSpotted)
{
_unit->setCache(0);
_parent->getMap()->cacheUnit(_unit);
_pf->abortPath();
_parent->popState();
return;
}
// check for reaction fire
if (!_falling)
{
if (_terrain->checkReactionFire(_unit))
{
// unit got fired upon - stop walking
_unit->setCache(0);
_parent->getMap()->cacheUnit(_unit);
_pf->abortPath();
_parent->popState();
return;
}
}
}
else if (onScreen)
{
// make sure the unit sprites are up to date
if (_pf->getStrafeMove())
{
// This is where we fake out the strafe movement direction so the unit "moonwalks"
int dirTemp = _unit->getDirection();
_unit->setDirection(_unit->getFaceDirection());
_parent->getMap()->cacheUnit(_unit);
_unit->setDirection(dirTemp);
}
else
{
_parent->getMap()->cacheUnit(_unit);
}
}
}
// we are just standing around, shouldn't we be walking?
if (_unit->getStatus() == STATUS_STANDING || _unit->getStatus() == STATUS_PANICKING)
{
// check if we did spot new units
if (unitSpotted && !_action.desperate && _unit->getCharging() == 0 && !_falling)
{
if (Options::traceAI) { Log(LOG_INFO) << "Uh-oh! Company!"; }
_unit->setHiding(false); // clearly we're not hidden now
_parent->getMap()->cacheUnit(_unit);
postPathProcedures();
return;
}
if (onScreen || _parent->getSave()->getDebugMode())
{
setNormalWalkSpeed();
}
else
{
_parent->setStateInterval(0);
}
int dir = _pf->getStartDirection();
if (_falling)
{
dir = Pathfinding::DIR_DOWN;
}
if (dir != -1)
{
if (_pf->getStrafeMove())
{
_unit->setFaceDirection(_unit->getDirection());
}
Position destination;
int tu = _pf->getTUCost(_unit->getPosition(), dir, &destination, _unit, 0, false); // gets tu cost, but also gets the destination position.
if (_unit->getFaction() != FACTION_PLAYER &&
_unit->getSpecialAbility() < SPECAB_BURNFLOOR &&
_parent->getSave()->getTile(destination) &&
_parent->getSave()->getTile(destination)->getFire() > 0)
{
tu -= 32; // we artificially inflate the TU cost by 32 points in getTUCost under these conditions, so we have to deflate it here.
}
if (_falling)
{
tu = 0;
}
int energy = tu;
if (dir >= Pathfinding::DIR_UP)
{
energy = 0;
}
else if (_action.run)
{
tu *= 0.75;
energy *= 1.5;
}
if (tu > _unit->getTimeUnits())
{
if (_parent->getPanicHandled() && tu < 255)
{
_action.result = "STR_NOT_ENOUGH_TIME_UNITS";
}
_pf->abortPath();
_unit->setCache(0);
_parent->getMap()->cacheUnit(_unit);
_parent->popState();
return;
}
if (energy / 2 > _unit->getEnergy())
{
if (_parent->getPanicHandled())
{
_action.result = "STR_NOT_ENOUGH_ENERGY";
}
_pf->abortPath();
_unit->setCache(0);
_parent->getMap()->cacheUnit(_unit);
_parent->popState();
return;
}
if (_parent->getPanicHandled() && _parent->checkReservedTU(_unit, tu) == false)
{
_pf->abortPath();
_unit->setCache(0);
_parent->getMap()->cacheUnit(_unit);
return;
}
// we are looking in the wrong way, turn first (unless strafing)
// we are not using the turn state, because turning during walking costs no tu
if (dir != _unit->getDirection() && dir < Pathfinding::DIR_UP && !_pf->getStrafeMove())
{
_unit->lookAt(dir);
_unit->setCache(0);
_parent->getMap()->cacheUnit(_unit);
return;
}
// now open doors (if any)
if (dir < Pathfinding::DIR_UP)
{
int door = _terrain->unitOpensDoor(_unit, false, dir);
if (door == 3)
{
return; // don't start walking yet, wait for the ufo door to open
}
if (door == 0)
{
_parent->getMod()->getSoundByDepth(_parent->getDepth(), Mod::DOOR_OPEN)->play(-1, _parent->getMap()->getSoundAngle(_unit->getPosition())); // normal door
}
if (door == 1)
{
_parent->getMod()->getSoundByDepth(_parent->getDepth(), Mod::SLIDING_DOOR_OPEN)->play(-1, _parent->getMap()->getSoundAngle(_unit->getPosition())); // ufo door
return; // don't start walking yet, wait for the ufo door to open
}
}
for (int x = size; x >= 0; --x)
{
for (int y = size; y >= 0; --y)
{
BattleUnit* unitInMyWay = _parent->getSave()->getTile(destination + Position(x,y,0))->getUnit();
BattleUnit* unitBelowMyWay = 0;
Tile* belowDest = _parent->getSave()->getTile(destination + Position(x,y,-1));
if (belowDest)
{
unitBelowMyWay = belowDest->getUnit();
}
// can't walk into units in this tile, or on top of other units sticking their head into this tile
if (!_falling &&
((unitInMyWay && unitInMyWay != _unit)
|| (belowDest && unitBelowMyWay && unitBelowMyWay != _unit &&
(-belowDest->getTerrainLevel() + unitBelowMyWay->getFloatHeight() + unitBelowMyWay->getHeight())
>= 28))) // 4+ voxels poking into the tile above, we don't kick people in the head here at XCom.
{
_action.TU = 0;
_pf->abortPath();
_unit->setCache(0);
_parent->getMap()->cacheUnit(_unit);
_parent->popState();
return;
}
}
}
// now start moving
dir = _pf->dequeuePath();
if (_falling)
{
dir = Pathfinding::DIR_DOWN;
}
if (_unit->spendTimeUnits(tu))
{
if (_unit->spendEnergy(energy))
{
Tile *tileBelow = _parent->getSave()->getTile(_unit->getPosition() + Position(0,0,-1));
_unit->startWalking(dir, destination, tileBelow, onScreen);
_beforeFirstStep = false;
}
}
// make sure the unit sprites are up to date
if (onScreen)
{
if (_pf->getStrafeMove())
{
// This is where we fake out the strafe movement direction so the unit "moonwalks"
int dirTemp = _unit->getDirection();
_unit->setDirection(_unit->getFaceDirection());
_parent->getMap()->cacheUnit(_unit);
_unit->setDirection(dirTemp);
}
else
{
_parent->getMap()->cacheUnit(_unit);
}
}
}
else
{
postPathProcedures();
return;
}
}
// turning during walking costs no tu
if (_unit->getStatus() == STATUS_TURNING)
{
// except before the first step.
if (_beforeFirstStep)
{
_preMovementCost++;
}
_unit->turn();
// calculateFOV is unreliable for setting the unitSpotted bool, as it can be called from various other places
// in the code, ie: doors opening, and this messes up the result.
_terrain->calculateFOV(_unit);
unitSpotted = (!_falling && !_action.desperate && _parent->getPanicHandled() && _numUnitsSpotted != _unit->getUnitsSpottedThisTurn().size());
// make sure the unit sprites are up to date
_unit->setCache(0);
_parent->getMap()->cacheUnit(_unit);
if (unitSpotted && !_action.desperate && !_unit->getCharging() && !_falling)
{
if (_beforeFirstStep)
{
_unit->spendTimeUnits(_preMovementCost);
}
if (Options::traceAI) { Log(LOG_INFO) << "Egads! A turn reveals new units! I must pause!"; }
_unit->setHiding(false); // not hidden, are we...
_pf->abortPath();
_unit->abortTurn(); //revert to a standing state.
_unit->setCache(0);
_parent->getMap()->cacheUnit(_unit);
_parent->popState();
}
}
}
void UnitWalkBState::think()
{
bool unitspotted = false;
bool onScreen = (_unit->getVisible() && _parent->getMap()->getCamera()->isOnScreen(_unit->getPosition()));
Tile *tileBelow = _parent->getSave()->getTile(_unit->getPosition() + Position(0,0,-1));
if (_unit->isOut())
{
_pf->abortPath();
_parent->popState();
return;
}
if (_unit->getStatus() == STATUS_WALKING || _unit->getStatus() == STATUS_FLYING)
{
if ((_parent->getSave()->getTile(_unit->getDestination())->getUnit() == 0) || // next tile must be not occupied
(_parent->getSave()->getTile(_unit->getDestination())->getUnit() == _unit))
{
playMovementSound();
_unit->keepWalking(tileBelow, onScreen); // advances the phase
}
else if (!_falling)
{
_unit->lookAt(_unit->getDestination(), true); // turn to undiscovered unit
_pf->abortPath();
}
// unit moved from one tile to the other, update the tiles
if (_unit->getPosition() != _unit->getLastPosition())
{
int size = _unit->getArmor()->getSize() - 1;
bool largeCheck = true;
for (int x = size; x >= 0; x--)
{
for (int y = size; y >= 0; y--)
{
Tile *otherTileBelow = _parent->getSave()->getTile(_unit->getPosition() + Position(x,y,-1));
if (!_parent->getSave()->getTile(_unit->getPosition() + Position(x,y,0))->hasNoFloor(otherTileBelow) || _unit->getArmor()->getMovementType() == MT_FLY)
largeCheck = false;
_parent->getSave()->getTile(_unit->getLastPosition() + Position(x,y,0))->setUnit(0);
}
}
for (int x = size; x >= 0; x--)
{
for (int y = size; y >= 0; y--)
{
_parent->getSave()->getTile(_unit->getPosition() + Position(x,y,0))->setUnit(_unit, _parent->getSave()->getTile(_unit->getPosition() + Position(x,y,-1)));
}
}
_falling = largeCheck && _unit->getPosition().z != 0 && _unit->getTile()->hasNoFloor(tileBelow) && _unit->getArmor()->getMovementType() != MT_FLY && _unit->getWalkingPhase() == 0;
if (_falling)
{
for (int x = _unit->getArmor()->getSize() - 1; x >= 0; --x)
{
for (int y = _unit->getArmor()->getSize() - 1; y >= 0; --y)
{
Tile *otherTileBelow = _parent->getSave()->getTile(_unit->getPosition() + Position(x,y,-1));
if (otherTileBelow && otherTileBelow->getUnit())
{
Position originalPosition(otherTileBelow->getUnit()->getPosition());
for (int dir = 0; dir < Pathfinding::DIR_UP; dir++)
{
Position offset;
Pathfinding::directionToVector(dir, &offset);
Tile *t = _parent->getSave()->getTile(originalPosition + offset);
Tile *bt = _parent->getSave()->getTile(originalPosition + offset + Position(0,0,-1));
Tile *bu = _parent->getSave()->getTile(originalPosition + Position(0,0,-1));
if (t && !_parent->getPathfinding()->isBlocked(otherTileBelow, t, dir, 0) && t->getUnit() == 0 && (!t->hasNoFloor(bt) || otherTileBelow->getUnit()->getArmor()->getMovementType() == MT_FLY))
{
_falling = false;
_pf->dequeuePath();
otherTileBelow->getUnit()->startWalking(dir, t->getPosition(), t, bu, bt, onScreen);
_parent->getSave()->addFallingUnit(otherTileBelow->getUnit());
_parent->getSave()->addFallingUnit(_unit);
_parent->statePushFront(new UnitFallBState(_parent));
return;
}
}
}
}
}
}
if (!_parent->getMap()->getCamera()->isOnScreen(_unit->getPosition()) && _unit->getFaction() != FACTION_PLAYER && _unit->getVisible())
_parent->getMap()->getCamera()->centerOnPosition(_unit->getPosition());
// if the unit changed level, camera changes level with
_parent->getMap()->getCamera()->setViewLevel(_unit->getPosition().z);
}
// is the step finished?
if (_unit->getStatus() == STATUS_STANDING)
{
// if the unit burns floortiles, burn floortiles
if (_unit->getSpecialAbility() == SPECAB_BURNFLOOR)
{
_unit->getTile()->destroy(MapData::O_FLOOR);
}
// move our personal lighting with us
_terrain->calculateUnitLighting();
unitspotted = _terrain->calculateFOV(_unit);
BattleAction action;
// check for proximity grenades (1 tile around the unit in every direction) (for large units, we need to check every tile it occupies)
int size = _unit->getArmor()->getSize() - 1;
for (int x = size; x >= 0; x--)
{
for (int y = size; y >= 0; y--)
{
for (int tx = -1; tx < 2; tx++)
{
for (int ty = -1; ty < 2; ty++)
{
Tile *t = _parent->getSave()->getTile(_unit->getPosition() + Position(x,y,0) + Position(tx,ty,0));
if (t)
for (std::vector<BattleItem*>::iterator i = t->getInventory()->begin(); i != t->getInventory()->end(); ++i)
{
if ((*i)->getRules()->getBattleType() == BT_PROXIMITYGRENADE && (*i)->getExplodeTurn() > 0)
{
Position p;
p.x = t->getPosition().x*16 + 8;
p.y = t->getPosition().y*16 + 8;
p.z = t->getPosition().z*24 + t->getTerrainLevel();
_parent->statePushNext(new ExplosionBState(_parent, p, (*i), (*i)->getPreviousOwner()));
t->getInventory()->erase(i);
return;
}
}
}
}
}
}
// check for reaction fire
if (!_falling && !_action.reckless && _terrain->checkReactionFire(_unit, &action))
{
postPathProcedures();
action.cameraPosition = _parent->getMap()->getCamera()->getMapOffset();
_parent->statePushBack(new ProjectileFlyBState(_parent, action));
// unit got fired upon - stop walking
_pf->abortPath();
return;
}
}
else if (onScreen)
{
// make sure the unit sprites are up to date
if (_pf->getStrafeMove())
{
// This is where we fake out the strafe movement direction so the unit "moonwalks"
int dirTemp = _unit->getDirection();
_unit->setDirection(_unit->getFaceDirection());
_parent->getMap()->cacheUnit(_unit);
_unit->setDirection(dirTemp);
}
else
{
_parent->getMap()->cacheUnit(_unit);
}
}
}
// we are just standing around, shouldn't we be walking?
if (_unit->getStatus() == STATUS_STANDING || _unit->getStatus() == STATUS_PANICKING)
{
// check if we did spot new units
if (unitspotted && !_action.desperate && _unit->getCharging() == 0 && !_falling)
{
_parent->getMap()->cacheUnit(_unit);
_pf->abortPath();
return;
}
if (onScreen || _parent->getSave()->getDebugMode())
{
setNormalWalkSpeed();
}
else
{
_parent->setStateInterval(0);
}
int dir = _pf->getStartDirection();
if (_falling)
{
dir = Pathfinding::DIR_DOWN;
}
if (dir != -1)
{
if (_pf->getStrafeMove())
{
_unit->setFaceDirection(_unit->getDirection());
}
Position destination;
int tu = _pf->getTUCost(_unit->getPosition(), dir, &destination, _unit, 0); // gets tu cost, but also gets the destination position.
if (_falling)
{
tu = 0;
}
int energy = tu;
if (_action.run)
{
tu *= 0.75;
energy *= 1.5;
}
if (tu > _unit->getTimeUnits())
{
_action.result = "STR_NOT_ENOUGH_TIME_UNITS";
_pf->abortPath();
_parent->getMap()->cacheUnit(_unit);
return;
}
if (_parent->checkReservedTU(_unit, tu) == false)
{
_pf->abortPath();
_parent->getMap()->cacheUnit(_unit);
return;
}
// we are looking in the wrong way, turn first (unless strafing)
// we are not using the turn state, because turning during walking costs no tu
if (dir != _unit->getDirection() && dir < Pathfinding::DIR_UP && !_pf->getStrafeMove())
{
_unit->lookAt(dir, true);
return;
}
// now open doors (if any)
int door = _terrain->unitOpensDoor(_unit);
if (door == 3)
{
return; // don't start walking yet, wait for the ufo door to open
}
if (door == 0)
{
_parent->getResourcePack()->getSound("BATTLE.CAT", 3)->play(); // normal door
}
if (door == 1)
{
_parent->getResourcePack()->getSound("BATTLE.CAT", 20)->play(); // ufo door
return; // don't start walking yet, wait for the ufo door to open
}
// now start moving
dir = _pf->dequeuePath();
if (_falling)
{
dir = Pathfinding::DIR_DOWN;
}
if (_unit->spendTimeUnits(tu))
{
if (_unit->spendEnergy(energy))
{
Tile *tileBelow = _parent->getSave()->getTile(_unit->getPosition() + Position(0,0,-1));
Tile *tileBelowDestination = _parent->getSave()->getTile(destination + Position(0,0,-1));
_unit->startWalking(dir, destination, _parent->getSave()->getTile(destination), tileBelow, tileBelowDestination, onScreen);
}
else
{
_action.result = "STR_NOT_ENOUGH_ENERGY";
_parent->getMap()->cacheUnit(_unit);
_parent->popState();
}
}
else
{
_action.result = "STR_NOT_ENOUGH_TIME_UNITS";
_parent->getMap()->cacheUnit(_unit);
_parent->popState();
}
// make sure the unit sprites are up to date
if (onScreen)
{
if (_pf->getStrafeMove())
{
// This is where we fake out the strafe movement direction so the unit "moonwalks"
int dirTemp = _unit->getDirection();
_unit->setDirection(_unit->getFaceDirection());
_unit->setDirection(dirTemp);
}
_parent->getMap()->cacheUnit(_unit);
}
}
else
{
postPathProcedures();
return;
}
}
// turning during walking costs no tu
if (_unit->getStatus() == STATUS_TURNING)
{
if (_action.strafe && _unit->getTurretType() > -1)
{
_unit->turn(true);
}
else
{
_unit->turn();
}
unitspotted = _terrain->calculateFOV(_unit);
// make sure the unit sprites are up to date
if (onScreen)
_parent->getMap()->cacheUnit(_unit);
if (unitspotted && !_action.desperate && _unit->getStatus() != STATUS_PANICKING && _unit->getCharging() == 0 && !_falling)
{
_pf->abortPath();
_parent->getMap()->cacheUnit(_unit);
return;
}
}
}
