PsiAttackBState.cpp

/* * Copyright 2010-2016 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/>. */ #include "PsiAttackBState.h" #include "ExplosionBState.h" #include "BattlescapeGame.h" #include "BattlescapeState.h" #include "TileEngine.h" #include "InfoboxState.h" #include "Map.h" #include "Camera.h" #include "../Savegame/SavedGame.h" #include "../Savegame/SavedBattleGame.h" #include "../Savegame/Tile.h" #include "../Engine/Game.h" #include "../Engine/RNG.h" #include "../Engine/Language.h" #include "../Engine/Sound.h" #include "../Mod/Mod.h" #include "../Savegame/BattleUnitStatistics.h" namespace OpenXcom { /** * Sets up a PsiAttackBState. */ PsiAttackBState::PsiAttackBState(BattlescapeGame *parent, BattleAction action) : BattleState(parent, action), _unit(0), _target(0), _item(0), _initialized(false) { } /** * Deletes the PsiAttackBState. */ PsiAttackBState::~PsiAttackBState() { } /** * Initializes the sequence: * - checks if the action is valid, * - adds a psi attack animation to the world. * - from that point on, the explode state takes precedence. * - when that state pops, we'll do our first think() */ void PsiAttackBState::init() { if (_initialized) return; _initialized = true; _item = _action.weapon; _unit = _action.actor; if (!_parent->getSave()->getTile(_action.target)) // invalid target position { _parent->popState(); return; } if (_unit->getTimeUnits() < _action.TU) // not enough time units { _action.result = "STR_NOT_ENOUGH_TIME_UNITS"; _parent->popState(); return; } _target = _parent->getSave()->getTile(_action.target)->getUnit(); if (!_target) // invalid target { _parent->popState(); return; } if (!_item) // can't make a psi attack without a weapon { _parent->popState(); return; } else if (_item->getRules()->getHitSound() != -1) { _parent->getMod()->getSoundByDepth(_parent->getDepth(), _item->getRules()->getHitSound())->play(-1, _parent->getMap()->getSoundAngle(_action.target)); } // make a cosmetic explosion int height = _target->getFloatHeight() + (_target->getHeight() / 2) - _parent->getSave()->getTile(_action.target)->getTerrainLevel(); Position voxel = _action.target * Position(16, 16, 24) + Position(8, 8, height); _parent->statePushFront(new ExplosionBState(_parent, voxel, _item, _unit, 0, false, true)); } /** * After the explosion animation is done doing its thing, * make the actual psi attack, and restore the camera/cursor. */ void PsiAttackBState::think() { //make the psi attack. psiAttack(); if (_action.cameraPosition.z != -1) { _parent->getMap()->getCamera()->setMapOffset(_action.cameraPosition); _parent->getMap()->invalidate(); } if (_parent->getSave()->getSide() == FACTION_PLAYER || _parent->getSave()->getDebugMode()) { _parent->setupCursor(); } _parent->popState(); } /** * Attempts a panic or mind control action. */ void PsiAttackBState::psiAttack() { double attackStrength = _unit->getBaseStats()->psiStrength * _unit->getBaseStats()->psiSkill / 50.0; double defenseStrength = _target->getBaseStats()->psiStrength + ((_target->getBaseStats()->psiSkill > 0) ? 10.0 + _target->getBaseStats()->psiSkill / 5.0 : 10.0); double dist = _parent->getTileEngine()->distance(_unit->getPosition(), _action.target); attackStrength -= dist; attackStrength += RNG::generate(0,55); if (_action.type == BA_MINDCONTROL) { defenseStrength += 20; } _unit->addPsiSkillExp(); if (Options::allowPsiStrengthImprovement) _target->addPsiStrengthExp(); if (attackStrength > defenseStrength) { Game *game = _parent->getSave()->getBattleState()->getGame(); _action.actor->addPsiSkillExp(); _action.actor->addPsiSkillExp(); BattleUnitKills killStat; killStat.setUnitStats(_target); killStat.setTurn(_parent->getSave()->getTurn(), _parent->getSave()->getSide()); killStat.weapon = _action.weapon->getRules()->getName(); killStat.weaponAmmo = _action.weapon->getRules()->getName(); //Psi weapons got no ammo, just filling up the field killStat.faction = _target->getFaction(); killStat.mission = _parent->getSave()->getGeoscapeSave()->getMissionStatistics()->size(); killStat.id = _target->getId(); if (_action.type == BA_PANIC) { int moraleLoss = (110-_target->getBaseStats()->bravery); if (moraleLoss > 0) _target->moraleChange(-moraleLoss); _target->setMindControllerId(_unit->getId()); // Award Panic battle unit kill if (!_unit->getStatistics()->duplicateEntry(STATUS_PANICKING, _target->getId())) { killStat.status = STATUS_PANICKING; _unit->getStatistics()->kills.push_back(new BattleUnitKills(killStat)); } if (_parent->getSave()->getSide() == FACTION_PLAYER) { game->pushState(new InfoboxState(game->getLanguage()->getString("STR_MORALE_ATTACK_SUCCESSFUL"))); } } else if (_action.type == BA_MINDCONTROL) { // Award MC battle unit kill if (!_unit->getStatistics()->duplicateEntry(STATUS_TURNING, _target->getId())) { killStat.status = STATUS_TURNING; _unit->getStatistics()->kills.push_back(new BattleUnitKills(killStat)); } _target->setMindControllerId(_unit->getId()); _target->convertToFaction(_unit->getFaction()); _parent->getTileEngine()->calculateFOV(_target->getPosition()); _parent->getTileEngine()->calculateUnitLighting(); _target->recoverTimeUnits(); _target->allowReselect(); _target->abortTurn(); // resets unit status to STANDING // if all units from either faction are mind controlled - auto-end the mission. if (_parent->getSave()->getSide() == FACTION_PLAYER) { if (Options::allowPsionicCapture) { _parent->autoEndBattle(); } game->pushState(new InfoboxState(game->getLanguage()->getString("STR_MIND_CONTROL_SUCCESSFUL"))); _parent->getSave()->getBattleState()->updateSoldierInfo(); } else { // show a little infobox with the name of the unit and "... is under alien control" game->pushState(new InfoboxState(game->getLanguage()->getString("STR_IS_UNDER_ALIEN_CONTROL", _target->getGender()).arg(_target->getName(game->getLanguage())))); } } } else { if (Options::allowPsiStrengthImprovement) { _target->addPsiStrengthExp(); } } } }

↑ V522 There might be dereferencing of a potential null pointer.

↑ V636 The expression was implicitly cast from 'int' type to 'double' type. Consider utilizing an explicit type cast to avoid overflow. An example: double A = (double)(X) * Y;.

↑ V656 Variables 'killStat.weapon', 'killStat.weaponAmmo' are initialized through the call to the same function. It's probably an error or un-optimized code. Consider inspecting the '_action.weapon->getRules()->getName()' expression. Check lines: 156, 157.