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1911 lines (1724 loc) · 39.7 KB
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/*
* Copyright 2010-2012 OpenXcom Developers.
*
* This file is part of OpenXcom.
*
* OpenXcom is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OpenXcom is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenXcom. If not, see <http://www.gnu.org/licenses/>.
*/
#define _USE_MATH_DEFINES
#include "BattleUnit.h"
#include "BattleItem.h"
#include <cmath>
#include "../Engine/Palette.h"
#include "../Engine/Surface.h"
#include "../Engine/Language.h"
#include "../Battlescape/Pathfinding.h"
#include "../Battlescape/BattleAIState.h"
#include "Soldier.h"
#include "../Ruleset/Armor.h"
#include "../Ruleset/Unit.h"
#include "../Engine/RNG.h"
#include "../Ruleset/RuleInventory.h"
#include "../Ruleset/RuleSoldier.h"
#include "Tile.h"
#include "SavedGame.h"
namespace OpenXcom
{
/**
* Initializes a BattleUnit from a Soldier
* @param soldier Pointer to the Soldier.
* @param faction Which faction the units belongs to.
*/
BattleUnit::BattleUnit(Soldier *soldier, UnitFaction faction) : _faction(faction), _originalFaction(faction), _id(0), _pos(Position()), _tile(0), _lastPos(Position()), _direction(0), _directionTurret(0), _toDirectionTurret(0), _verticalDirection(0), _status(STATUS_STANDING), _walkPhase(0), _fallPhase(0), _kneeled(false), _dontReselect(false), _fire(0), _currentAIState(0), _visible(false), _cacheInvalid(true), _expBravery(0), _expReactions(0), _expFiring(0), _expThrowing(0), _expPsiSkill(0), _expMelee(0), _turretType(-1), _motionPoints(0), _kills(0)
{
_name = soldier->getName();
_id = soldier->getId();
_type = "SOLDIER";
_rank = soldier->getRankString();
_stats = *soldier->getCurrentStats();
_standHeight = soldier->getRules()->getStandHeight();
_kneelHeight = soldier->getRules()->getKneelHeight();
_loftemps = soldier->getRules()->getLoftemps();
_deathSound = 0; // this one is hardcoded
_intelligence = 2;
_aggression = 1;
_specab = SPECAB_NONE;
_armor = soldier->getArmor();
_gender = soldier->getGender();
int rankbonus = 0;
switch (soldier->getRank())
{
case RANK_SERGEANT: rankbonus = 1; break;
case RANK_CAPTAIN: rankbonus = 3; break;
case RANK_COLONEL: rankbonus = 6; break;
case RANK_COMMANDER: rankbonus = 10; break;
}
_value = 20 + soldier->getMissions() + rankbonus;
_tu = _stats.tu;
_energy = _stats.stamina;
_health = _stats.health;
_morale = 100;
_stunlevel = 0;
_currentArmor[SIDE_FRONT] = _armor->getFrontArmor();
_currentArmor[SIDE_LEFT] = _armor->getSideArmor();
_currentArmor[SIDE_RIGHT] = _armor->getSideArmor();
_currentArmor[SIDE_REAR] = _armor->getRearArmor();
_currentArmor[SIDE_UNDER] = _armor->getUnderArmor();
for (int i = 0; i < 6; ++i)
_fatalWounds[i] = 0;
for (int i = 0; i < 5; ++i)
_cache[i] = 0;
_activeHand = "STR_RIGHT_HAND";
}
/**
* Initializes a BattleUnit from a Unit object.
* @param unit Pointer to Unit object.
* @param faction Which faction the units belongs to.
*/
BattleUnit::BattleUnit(Unit *unit, UnitFaction faction, int id, Armor *armor) : _faction(faction), _originalFaction(faction), _id(id), _pos(Position()), _tile(0), _lastPos(Position()), _direction(0), _directionTurret(0), _toDirectionTurret(0), _verticalDirection(0), _status(STATUS_STANDING), _walkPhase(0), _fallPhase(0), _kneeled(false), _dontReselect(false), _fire(0), _currentAIState(0), _visible(false), _cacheInvalid(true), _expBravery(0), _expReactions(0), _expFiring(0), _expThrowing(0), _expPsiSkill(0), _expMelee(0), _turretType(-1), _motionPoints(0), _kills(0), _armor(armor)
{
_type = unit->getType();
_rank = unit->getRank();
_race = unit->getRace();
_stats = *unit->getStats();
_standHeight = unit->getStandHeight();
_kneelHeight = unit->getKneelHeight();
_loftemps = unit->getLoftemps();
_deathSound = unit->getDeathSound();
_intelligence = unit->getIntelligence();
_aggression = unit->getAggression();
_specab = (SpecialAbility) unit->getSpecialAbility();
_value = unit->getValue();
_gender = GENDER_MALE;
_tu = _stats.tu;
_energy = _stats.stamina;
_health = _stats.health;
_morale = 100;
_stunlevel = 0;
_currentArmor[SIDE_FRONT] = _armor->getFrontArmor();
_currentArmor[SIDE_LEFT] = _armor->getSideArmor();
_currentArmor[SIDE_RIGHT] = _armor->getSideArmor();
_currentArmor[SIDE_REAR] = _armor->getRearArmor();
_currentArmor[SIDE_UNDER] = _armor->getUnderArmor();
for (int i = 0; i < 6; ++i)
_fatalWounds[i] = 0;
for (int i = 0; i < 5; ++i)
_cache[i] = 0;
_activeHand = "STR_RIGHT_HAND";
}
/**
*
*/
BattleUnit::~BattleUnit()
{
for (int i = 0; i < 5; ++i)
delete _cache[i];
}
/**
* Loads the unit from a YAML file.
* @param node YAML node.
*/
void BattleUnit::load(const YAML::Node &node)
{
int a = 0;
node["id"] >> _id;
node["faction"] >> a;
_faction = (UnitFaction)a;
node["status"] >> a;
_status = (UnitStatus)a;
node["position"] >> _pos;
node["direction"] >> _direction;
node["directionTurret"] >> _directionTurret;
node["tu"] >> _tu;
node["health"] >> _health;
node["stunlevel"] >> _stunlevel;
node["energy"] >> _energy;
node["morale"] >> _morale;
node["kneeled"] >> _kneeled;
for (int i=0; i < 5; i++)
node["armor"][i] >> _currentArmor[i];
for (int i=0; i < 6; i++)
node["fatalWounds"][i] >> _fatalWounds[i];
node["expBravery"] >> _expBravery;
node["expReactions"] >> _expReactions;
node["expFiring"] >> _expFiring;
node["expThrowing"] >> _expThrowing;
node["expPsiSkill"] >> _expPsiSkill;
node["expMelee"] >> _expMelee;
node["turretType"] >> _turretType;
}
/**
* Saves the soldier to a YAML file.
* @param out YAML emitter.
*/
void BattleUnit::save(YAML::Emitter &out) const
{
out << YAML::BeginMap;
out << YAML::Key << "id" << YAML::Value << _id;
out << YAML::Key << "faction" << YAML::Value << _faction;
out << YAML::Key << "soldierId" << YAML::Value << _id;
out << YAML::Key << "genUnitType" << YAML::Value << _type;
out << YAML::Key << "genUnitArmor" << YAML::Value << _armor->getType();
out << YAML::Key << "name" << YAML::Value << Language::wstrToUtf8(getName(0));
out << YAML::Key << "status" << YAML::Value << _status;
out << YAML::Key << "position" << YAML::Value << _pos;
out << YAML::Key << "direction" << YAML::Value << _direction;
out << YAML::Key << "directionTurret" << YAML::Value << _directionTurret;
out << YAML::Key << "tu" << YAML::Value << _tu;
out << YAML::Key << "health" << YAML::Value << _health;
out << YAML::Key << "stunlevel" << YAML::Value << _stunlevel;
out << YAML::Key << "energy" << YAML::Value << _energy;
out << YAML::Key << "morale" << YAML::Value << _morale;
out << YAML::Key << "kneeled" << YAML::Value << _kneeled;
out << YAML::Key << "armor" << YAML::Value;
out << YAML::Flow << YAML::BeginSeq;
for (int i=0; i < 5; i++) out << _currentArmor[i];
out << YAML::EndSeq;
out << YAML::Key << "fatalWounds" << YAML::Value;
out << YAML::Flow << YAML::BeginSeq;
for (int i=0; i < 6; i++) out << _fatalWounds[i];
out << YAML::EndSeq;
out << YAML::Key << "fire" << YAML::Value << _fire;
out << YAML::Key << "expBravery" << YAML::Value << _expBravery;
out << YAML::Key << "expReactions" << YAML::Value << _expReactions;
out << YAML::Key << "expFiring" << YAML::Value << _expFiring;
out << YAML::Key << "expThrowing" << YAML::Value << _expThrowing;
out << YAML::Key << "expPsiSkill" << YAML::Value << _expPsiSkill;
out << YAML::Key << "expMelee" << YAML::Value << _expMelee;
out << YAML::Key << "turretType" << YAML::Value << _turretType;
if (getCurrentAIState())
{
out << YAML::Key << "AI" << YAML::Value;
getCurrentAIState()->save(out);
}
out << YAML::EndMap;
}
/**
* Returns the BattleUnit's unique ID.
* @return Unique ID.
*/
int BattleUnit::getId() const
{
return _id;
}
/**
* Changes the BattleUnit's position.
* @param pos position
*/
void BattleUnit::setPosition(const Position& pos)
{
_lastPos = _pos;
_pos = pos;
}
/**
* Gets the BattleUnit's position.
* @return position
*/
const Position& BattleUnit::getPosition() const
{
return _pos;
}
/**
* Gets the BattleUnit's position.
* @return position
*/
const Position& BattleUnit::getLastPosition() const
{
return _lastPos;
}
/**
* Gets the BattleUnit's destination.
* @return destination
*/
const Position& BattleUnit::getDestination() const
{
return _destination;
}
/**
* Changes the BattleUnit's direction. Only used for initial unit placement.
* @param direction
*/
void BattleUnit::setDirection(int direction)
{
_direction = direction;
_toDirection = direction;
_directionTurret = direction;
}
/**
* Gets the BattleUnit's (horizontal) direction.
* @return direction
*/
int BattleUnit::getDirection() const
{
return _direction;
}
/**
* Gets the BattleUnit's turret direction.
* @return direction
*/
int BattleUnit::getTurretDirection() const
{
return _directionTurret;
}
/**
* Gets the BattleUnit's vertical direction. This is when going up or down.
* @return direction
*/
int BattleUnit::getVerticalDirection() const
{
return _verticalDirection;
}
/**
* Gets the unit's status.
* @return the unit's status
*/
UnitStatus BattleUnit::getStatus() const
{
return _status;
}
/**
* Initialises variables to start walking.
* @param direction Which way to walk.
* @param destination The position we should end up on.
*/
void BattleUnit::startWalking(int direction, const Position &destination)
{
if (direction < Pathfinding::DIR_UP)
{
_direction = direction;
_status = STATUS_WALKING;
}
else
{
_verticalDirection = direction;
_status = STATUS_FLYING;
}
if (!_tile->getMapData(MapData::O_FLOOR))
_status = STATUS_FLYING;
_walkPhase = 0;
_destination = destination;
_lastPos = _pos;
_cacheInvalid = true;
_kneeled = false;
}
/**
* This will increment the walking phase.
*/
void BattleUnit::keepWalking()
{
int middle, end;
if (_verticalDirection)
{
middle = 4;
end = 8;
}
else
{
// diagonal walking takes double the steps
middle = 4 + 4 * (_direction % 2);
end = 8 + 8 * (_direction % 2);
if (_armor->getSize() > 1)
{
if (_direction < 1 || _direction > 4)
middle = end;
else
middle = 1;
}
}
_walkPhase++;
if (_walkPhase == middle)
{
// we assume we reached our destination tile
// this is actually a drawing hack, so soldiers are not overlapped by floortiles
_pos = _destination;
}
if (_walkPhase == end)
{
// we officially reached our destination tile
_status = STATUS_STANDING;
_walkPhase = 0;
_verticalDirection = 0;
// motion points calculation for the motion scanner blips
if (_armor->getSize() > 1)
{
_motionPoints += 30;
}
else
{
// sectoids actually have less motion points
// but instead of create yet another variable,
// I used the height of the unit instead (logical)
if (getStandHeight() > 16)
_motionPoints += 4;
else
_motionPoints += 3;
}
}
_cacheInvalid = true;
}
/*
* Gets the walking phase for animation and sound.
* return phase will always go from 0-7
*/
int BattleUnit::getWalkingPhase() const
{
return _walkPhase % 8;
}
/*
* Gets the walking phase for diagonal walking.
* return phase this will be 0 or 8
*/
int BattleUnit::getDiagonalWalkingPhase() const
{
return (_walkPhase / 8) * 8;
}
/**
* Look at a point.
* @param point
*/
void BattleUnit::lookAt(const Position &point, bool turret)
{
double ox = point.x - _pos.x;
double oy = point.y - _pos.y;
double angle = atan2(ox, -oy);
// divide the pie in 4 angles each at 1/8th before each quarter
double pie[4] = {(M_PI_4 * 4.0) - M_PI_4 / 2.0, (M_PI_4 * 3.0) - M_PI_4 / 2.0, (M_PI_4 * 2.0) - M_PI_4 / 2.0, (M_PI_4 * 1.0) - M_PI_4 / 2.0};
int dir = 0;
if (angle > pie[0] || angle < -pie[0])
{
dir = 4;
}
else if (angle > pie[1])
{
dir = 3;
}
else if (angle > pie[2])
{
dir = 2;
}
else if (angle > pie[3])
{
dir = 1;
}
else if (angle < -pie[1])
{
dir = 5;
}
else if (angle < -pie[2])
{
dir = 6;
}
else if (angle < -pie[3])
{
dir = 7;
}
else if (angle < pie[0])
{
dir = 0;
}
if (turret)
{
_toDirectionTurret = dir;
if (_toDirectionTurret != _directionTurret)
{
_status = STATUS_TURNING;
}
}
else
{
_toDirection = dir;
if (_toDirection != _direction)
{
_status = STATUS_TURNING;
}
}
}
/**
* Look at a direction.
* @param direction
*/
void BattleUnit::lookAt(int direction)
{
_toDirection = direction;
_status = STATUS_TURNING;
}
/**
* Advances the turning towards the target direction.
*/
void BattleUnit::turn(bool turret)
{
int a = 0;
if (turret)
a = _toDirectionTurret - _directionTurret;
else
a = _toDirection - _direction;
if (a != 0) {
if (a > 0) {
if (a <= 4) {
if (!turret) _direction++;
_directionTurret++;
} else {
if (!turret) _direction--;
_directionTurret--;
}
} else {
if (a > -4) {
if (!turret) _direction--;
_directionTurret--;
} else {
if (!turret) _direction++;
_directionTurret++;
}
}
if (_direction < 0) _direction = 7;
if (_direction > 7) _direction = 0;
if (_directionTurret < 0) _directionTurret = 7;
if (_directionTurret > 7) _directionTurret = 0;
_cacheInvalid = true;
}
if (turret)
{
if (_toDirectionTurret == _directionTurret)
{
// we officially reached our destination
_status = STATUS_STANDING;
}
}
else
{
if (_toDirection == _direction)
{
// we officially reached our destination
_status = STATUS_STANDING;
}
}
}
/**
* Stops the turning towards the target direction.
*/
void BattleUnit::abortTurn()
{
_status = STATUS_STANDING;
}
/**
* Gets the soldier's gender.
*/
SoldierGender BattleUnit::getGender() const
{
return _gender;
}
/**
* Returns the unit's faction.
* @return Faction. (player, hostile or neutral)
*/
UnitFaction BattleUnit::getFaction() const
{
return _faction;
}
/**
* Sets the unit's cache flag.
* Set to true when the unit has to be redrawn from scratch.
* @param cache
*/
void BattleUnit::setCache(Surface *cache, int part)
{
if (cache == 0)
{
_cacheInvalid = true;
}
else
{
_cache[part] = cache;
_cacheInvalid = false;
}
}
/**
* Check if the unit is still cached in the Map cache.
* When the unit changes it needs to be re-cached.
* @param invalid
* @return cache
*/
Surface *BattleUnit::getCache(bool *invalid, int part) const
{
if (part < 0) part = 0;
*invalid = _cacheInvalid;
return _cache[part];
}
/**
* Kneel down.
* @param kneeled to kneel or to stand up
*/
void BattleUnit::kneel(bool kneeled)
{
_kneeled = kneeled;
_cacheInvalid = true;
}
/**
* Is kneeled down?
* @return true/false
*/
bool BattleUnit::isKneeled() const
{
return _kneeled;
}
/**
* Aim. (shows the right hand sprite and weapon holding)
* @param aiming
*/
void BattleUnit::aim(bool aiming)
{
if (aiming)
_status = STATUS_AIMING;
else
_status = STATUS_STANDING;
_cacheInvalid = true;
}
/**
* Returns the soldier's amount of time units.
* @return Time units.
*/
int BattleUnit::getTimeUnits() const
{
return _tu;
}
/**
* Returns the soldier's amount of energy.
* @return Energy.
*/
int BattleUnit::getEnergy() const
{
return _energy;
}
/**
* Returns the soldier's amount of health.
* @return Health.
*/
int BattleUnit::getHealth() const
{
return _health;
}
/**
* Returns the soldier's amount of morale.
* @return Morale.
*/
int BattleUnit::getMorale() const
{
return _morale;
}
/**
* Do an amount of damage.
* @param position The position defines which part of armor and/or bodypart is hit.
* @param power
* @param type
*/
void BattleUnit::damage(Position position, int power, ItemDamageType type, bool ignoreArmor)
{
UnitSide side;
int impactheight;
UnitBodyPart bodypart;
if (power <= 0)
{
return;
}
power = (int)floor(power * _armor->getDamageModifier(type));
if (!ignoreArmor)
{
if (position == Position(0, 0, 0))
{
side = SIDE_UNDER;
}
else
{
// normalize x and y towards north
int x = 8, y = 8;
switch(_direction)
{
case 0: // heading north
x = position.x;
y = 15 - position.y;
break;
case 1: // somewhere in between 0 and 2
x = (position.x + position.y)/2;
y = ((15 - position.y) + position.x)/2;
break;
case 2: // heading east
x = 15 - position.y;
y = 15 - position.x;
break;
case 3:
x = (position.y + (15 - position.x))/2;
y = (position.x + position.y)/2;
break;
case 4: // heading south
x = 15 - position.x;
y = position.y;
break;
case 5:
x = ((15 - position.x) + (15 - position.y))/2;
y = (position.y + (15 - position.x))/2;
break;
case 6: // heading west
x = 15 - position.y;
y = 15 - position.x;
break;
case 7:
x = ((15 - position.y) + position.x)/2;
y = ((15 - position.x) + (15 - position.y))/2;
break;
}
// determine side
if (y > 9)
side = SIDE_FRONT;
else if (y < 6)
side = SIDE_REAR;
else if (x < 6)
side = SIDE_LEFT;
else if (x > 9)
side = SIDE_RIGHT;
else
side = SIDE_FRONT;
}
impactheight = 10*position.z/getHeight();
if (impactheight > 4 && impactheight < 7) // torso
{
if (side == SIDE_LEFT)
{
bodypart = BODYPART_LEFTARM;
}else if (side == SIDE_RIGHT)
{
bodypart = BODYPART_RIGHTARM;
}else
{
bodypart = BODYPART_TORSO;
}
}else if (impactheight >= 7) //head
{
bodypart = BODYPART_HEAD;
}else if (impactheight <=4) //legs
{
if (side == SIDE_LEFT || side == SIDE_FRONT)
{
bodypart = BODYPART_LEFTLEG;
}else
{
bodypart = BODYPART_RIGHTLEG;
}
}
power -= getArmor(side);
}
if (power > 0)
{
if (type == DT_STUN)
{
_stunlevel += power;
}
else
{
// health damage
_health -= power;
if (_health < 0)
_health = 0;
if (type != DT_IN)
{
// fatal wounds
if (isWoundable())
{
if (RNG::generate(0,power) > 2)
_fatalWounds[bodypart] += RNG::generate(1,3);
if (_fatalWounds[bodypart])
moraleChange(-_fatalWounds[bodypart]);
}
// armor damage
setArmor(getArmor(side) - (power/10) - 1, side);
}
_needPainKiller = true;
}
}
}
/**
* Do an amount of stun recovery.
* @param power
*/
void BattleUnit::healStun(int power)
{
_stunlevel -= power;
if (_stunlevel < 0) _stunlevel = 0;
}
int BattleUnit::getStunlevel() const
{
return _stunlevel;
}
/**
* Intialises the falling sequence. Occurs after death or stunned.
*/
void BattleUnit::startFalling()
{
_status = STATUS_COLLAPSING;
_fallPhase = 0;
_cacheInvalid = true;
}
/**
* Advances the phase of falling sequence.
*/
void BattleUnit::keepFalling()
{
_fallPhase++;
if (_fallPhase == 3)
{
_fallPhase = 2;
if (_health == 0)
_status = STATUS_DEAD;
else
_status = STATUS_UNCONSCIOUS;
}
_cacheInvalid = true;
}
/**
* Returns the phase of the falling sequence.
* @return phase
*/
int BattleUnit::getFallingPhase() const
{
return _fallPhase;
}
/**
* Returns whether the soldier is out of combat, dead or unconscious.
* A soldier that is out, cannot perform any actions, cannot be selected, but it's still a unit.
* @return flag if out or not.
*/
bool BattleUnit::isOut() const
{
return _status == STATUS_DEAD || _status == STATUS_UNCONSCIOUS;
}
/**
* Get the number of time units a certain action takes.
* @param actionType
* @param item
* @return TUs
*/
int BattleUnit::getActionTUs(BattleActionType actionType, BattleItem *item)
{
if (item == 0)
{
return 0;
}
switch (actionType)
{
case BA_PRIME:
return (int)floor(getStats()->tu * 0.50);
case BA_THROW:
return (int)floor(getStats()->tu * 0.25);
case BA_AUTOSHOT:
return (int)(getStats()->tu * item->getRules()->getTUAuto() / 100);
case BA_SNAPSHOT:
return (int)(getStats()->tu * item->getRules()->getTUSnap() / 100);
case BA_HIT:
return (int)(getStats()->tu * item->getRules()->getTUMelee() / 100);
case BA_LAUNCH:
case BA_AIMEDSHOT:
return (int)(getStats()->tu * item->getRules()->getTUAimed() / 100);
case BA_USE:
return (int)(getStats()->tu * item->getRules()->getTUUse() / 100);
case BA_MINDCONTROL:
case BA_PANIC:
return item->getRules()->getTUUse();
default:
return 0;
}
}
/**
* Spend time units if it can. Return false if it can't.
* @param tu
* @param debugmode If this is true, the function actually does noting.
* @return flag if it could spend the time units or not.
*/
bool BattleUnit::spendTimeUnits(int tu, bool debugmode)
{
if (debugmode && _faction == FACTION_PLAYER) return true;
if (tu <= _tu)
{
_tu -= tu;
return true;
}
else
{
return false;
}
}
/**
* Spend energy if it can. Return false if it can't.
* @param tu
* @param debugmode If this is true, the function actually does noting.
* @return flag if it could spend the time units or not.
*/
bool BattleUnit::spendEnergy(int tu, bool debugmode)
{
if (debugmode) return true;
int eu = tu / 2;
if (eu <= _energy)
{
_energy -= eu;
return true;
}
else
{
return false;
}
}
/**
* Set a specific number of timeunits.
* @param tu
*/
void BattleUnit::setTimeUnits(int tu)
{
_tu = tu;
}
/**
* Add this unit to the list of visible units. Returns true if this is a new one.
* @param unit
* @return
*/
bool BattleUnit::addToVisibleUnits(BattleUnit *unit)
{
for (std::vector<BattleUnit*>::iterator i = _visibleUnits.begin(); i != _visibleUnits.end(); ++i)
{
if ((BattleUnit*)(*i) == unit)
{
return false;
}
}
_visibleUnits.push_back(unit);
return true;
}
/**
* Get the pointer to the vector of visible units.
* @return pointer to vector.
*/
std::vector<BattleUnit*> *const BattleUnit::getVisibleUnits()
{
return &_visibleUnits;
}