source: code/branches/campaignHS15/src/orxonox/controllers/WingmanController.cc @ 10851

/*
 *   ORXONOX - the hottest 3D action shooter ever to exist
 *                    > www.orxonox.net <
 *
 *
 *   License notice:
 *
 *   This program 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 2
 *   of the License, or (at your option) any later version.
 *
 *   This program 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 this program; if not, write to the Free Software
 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 *   Author:
 *      Fabian 'x3n' Landau
 *   Co-authors:
 *      Dominik Solenicki
 *
 */

#include "WingmanController.h"


namespace orxonox
{

    RegisterClass(WingmanController);
    
    //CommonController contains all common functionality of AI Controllers
    WingmanController::WingmanController(Context* context) : CommonController(context)
    {
        RegisterObject(WingmanController);
        this->actionTimer_.setTimer(ACTION_INTERVAL, true, createExecutor(createFunctor(&WingmanController::action, this)));
        this->myLeader_ = 0;
        this->rank_ = Rank::WINGMAN;
        this->bFirstAction_ = true;

    }

    WingmanController::~WingmanController()
    {

    }
  
    void WingmanController::XMLPort(Element& xmlelement, XMLPort::Mode mode)
    {
        SUPER(WingmanController, XMLPort, xmlelement, mode);

        //XMLPortParam(SectionController, "target_", setTarget, getTarget, xmlelement, mode).defaultValues(100.0f);
    }
    
    //----in tick, move (or look) and shoot----
    void WingmanController::tick(float dt)
    {   
        if (!this->isActive())
            return;
        
        
        SUPER(WingmanController, tick, dt);
    }
    
    //----action for hard calculations----
    void WingmanController::action()
    {

        //----If no leader, find one----
        if (!this->myLeader_)
        {
            CommonController* newLeader = findNewLeader();
            this->myLeader_ = newLeader;
           
        }
        //----If have leader, he will deal with logic----
        else
        {

        }
        if (!this->myLeader_)
        {
            bool b = this->startAttackingEnemiesThatAreClose();

            if (this->action_ == Action::NONE)
            {
                this->executeActionpoint();
            }
            if (this->action_ == Action::FIGHT || this->action_ == Action::FIGHTALL)
            {
                if (!this->hasTarget())
                {
                    //----find a target----
                    ControllableEntity* newTarget = this->closestTarget();
                    if (this->action_ == Action::FIGHT)
                    {
                        if (newTarget && 
                                CommonController::distance (this->getControllableEntity(), newTarget) < this->attackRange_)
                        {
                            this->setAction (Action::FIGHT, newTarget);
                        }
                        else
                        {
                            this->nextActionpoint();
                            return;
                        }
                    }
                    else if (this->action_ == Action::FIGHTALL)
                    {
                        if (newTarget && newTarget->getController())
                        {
                            this->setAction (Action::FIGHTALL, newTarget);
                        }
                        else
                        {
                            this->nextActionpoint();
                            return;
                        }
                    }

                }
                else if (this->hasTarget())
                {
                    //----fly in formation if far enough----
                    Vector3 diffVector = this->positionOfTarget_ - this->getControllableEntity()->getWorldPosition();         
                        
                    if (diffVector.length() > this->attackRange_)
                    {
                        if (this->action_ == Action::FIGHT)
                        {
                            this->nextActionpoint();
                            return;
                        }
                    }
                }
            }
            else if (this->action_ == Action::FLY)
            {
                if (this->squaredDistanceToTarget() <= this->squaredaccuracy_)
                {
                    this->nextActionpoint();
                    return;
                }
            }
            else if (this->action_ == Action::PROTECT)
            {
                if (!this->getProtect())
                {
                    this->nextActionpoint();
                    return;
                }

                Vector3* targetRelativePosition;
                    
                targetRelativePosition = new Vector3 (0, 300, 300);  
     
                Vector3 targetAbsolutePosition = ((this->getProtect()->getWorldPosition()) + 
                    (this->getProtect()->getWorldOrientation()* (*targetRelativePosition)));
                this->setTargetPosition(targetAbsolutePosition);
                

            }
            else if (this->action_ == Action::ATTACK)
            {   
                if (!this->hasTarget())
                {
                    this->nextActionpoint();
                    return;
                }
                        
            }
            if (this->hasTarget())
            {
                //----choose where to go----
                this->maneuver();
                //----fire if you can----
                this->bShooting_ = this->canFire();                
            }
        }
        else
        {
            //----action was set to fight----
            if (this->action_ == Action::FIGHT)
            {
                //----If no leader found, attack someone----
                if (!this->hasTarget())
                {
                    this->setClosestTarget(); 
                }
                if (this->hasTarget())
                {
                    //----choose where to go----
                    this->maneuver();
                    //----fire if you can----
                    this->bShooting_ = this->canFire();                
                }
            }
            //----action was set to fly, leader handles the logic----
            else if (this->action_ == Action::FLY)
            {

            }
        } 
        if (this->bFirstAction_ && this->myLeader_)
        {
            this->parsedActionpoints_ = this->myLeader_->parsedActionpoints_;
            this->bFirstAction_ = false;
        }
    }
     
   
    
    //----POST: closest leader that is ready to take a new wingman is returned----
    CommonController* WingmanController::findNewLeader()
    {

        if (!this->getControllableEntity())
            return 0;

        //----vars for finding the closest leader----
        CommonController* closestLeader = 0;
        float minDistance =  std::numeric_limits<float>::infinity();
        Gametype* gt = this->getGametype();
        for (ObjectList<CommonController>::iterator it = ObjectList<CommonController>::begin(); it; ++it)
        {
            //----0ptr or not a leader or dead?----
            if (!it || 
                (it->getRank() != Rank::SECTIONLEADER && it->getRank() != Rank::DIVISIONLEADER) || 
                !(it->getControllableEntity()))
                continue;
            
            //----same team?----
            if ( !CommonController::sameTeam (this->getControllableEntity(), (it)->getControllableEntity(), gt) )
                continue;
            
            //----check distance----
            float distance = CommonController::distance (it->getControllableEntity(), this->getControllableEntity());
            if (distance < minDistance && !(it->hasWingman()))
            {
                closestLeader = *it;
                minDistance = distance;
            }
           
        }
        if (closestLeader)
        {
            //----Racing conditions----
            if (closestLeader->setWingman(this))
                return closestLeader;
        }
        return 0;
    }




}