/*
 *   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:
 *
 *   Co-authors:
 *      ...
 *
 *NACHRICHT:
 *
 * Hier empfehle ich euch die gesamte Spielogik unter zu bringen. Viele Funktionen werden automatisch
 * bei gewissen Ereignissen aufgerufen bzw. lösen Ereignisse aus
 *
 *Z.B:
 * start() //wird aufgerufen, bevor das Spiel losgeht
 * end() //wenn man diese Funktion aufruft wird
 * pawnKilled() // wird aufgerufen, wenn ein Pawn stirbt (z.B: wenn )
 * playerScored() // kann man aufrufen um dem Spieler Punkte zu vergeben.
 *
 *
 *TIPP: Eclipse hilft euch schnell auf bereits vorhanden Funktionen zuzugreifen:
 * einfach "this->" eingeben und kurz warten. Dann tauch eine Liste mit Vorschlägen auf. Wenn ihr jetzt weiter
 * tippt, werden die Vorschläge entsprechend gefiltert.
 *
 *
 *TIPP: schaut euch mal Tetris::createStone() an. Dort wird ein TetrisStone-Objekt (ControllableEntity) erzeugt,
 * ihm ein Template zugewiesen (welches vorher im Level definiert wurde und dem CenterPoint übergeben wurde)
 * Ähnlich könnt ihr vorgehen, um einen Turm zu erzeugen. (Zusätzlich braucht ein Turm noch einen Controller)
 * z.B: WaypointPatrolController. Wenn kein Team zugewiesen wurde bekämpft ein WaypointPatrolController alles,
 * was in seiner Reichweite liegt.
 *
 *
 *HUD:
 * Ein Gametype kann ein HUD (Head up Display haben.) Z.B: hat Pong eine Anzeige welcher Spieler wieviele Punkte hat.
 * Generell kann man a) Grafiken oder b) Zeichen in einer HUD anzeigen.
 * Fuer den ersten Schritt reicht reiner Text.
 *
 * a)
 * PongScore.cc uebernehmen und eigene Klasse draus machen.
 * Wenn ihr bloss anzeigen wollt wieviele Punkte der Spieler bereits erspielt hat (Punkte = Kapital fuer neue Tuerme) dann orientiert ihr euch an
 * TetrisScore.cc (im pCuts branch): http://www.orxonox.net/browser/code/branches/pCuts/src/modules/tetris/TetrisScore.cc
 * Ich habe TetrisScore lediglich dazu gebraucht, um eine Variable auf dem HUD auszugeben. Ein Objekt fuer statischen Text gibt es bereits.
 *
 * b)
 * Im naesten Schritt erstellt man die Vorlage fuer das HUD-Objekt: siehe /data/overlays/pongHUD
 * OverlayText ist eine Vorlage fuer statischen text zb: "Points Scored:". Aus mir nicht erklaerlichen Gruenden sollte man die OverlayText
 * Objekte immer erst nach dem PongScore anlegen.
 *
 * c)  Im TowerDefense gamtype muss im Constructor noch das HUD-Template gesetzt werden.
 *
 * d) in CMakeLists.txt noch das Module includen das fuer die Overlays zustaendig ist. Siehe das gleiche File im Pong module.
 *
 *
 *
 */
#include "TowerDefense.h"
#include "TowerDefenseTower.h"
#include "TowerDefenseCenterpoint.h"
//#include "TDCoordinate.h"
#include "worldentities/SpawnPoint.h"
#include "worldentities/pawns/Pawn.h"
#include "worldentities/pawns/SpaceShip.h"
#include "controllers/WaypointController.h"
#include "graphics/Model.h"
#include "infos/PlayerInfo.h"
#include "chat/ChatManager.h"
#include "core/CoreIncludes.h"
/* Part of a temporary hack to allow the player to add towers */
#include "core/command/ConsoleCommand.h"
#include <cmath>


namespace orxonox
{
    static const std::string __CC_addTower_name  = "addTower";
    static const std::string __CC_upgradeTower_name = "upgradeTower";
    static const int upgradeCost = 20;
    static const int towerCost = 20;
    unsigned int maxspaceships = 30;
    int maxspaceshipsstandard = 30;



    SetConsoleCommand("TowerDefense", __CC_addTower_name,  &TowerDefense::addTower ).addShortcut().defaultValues(1);
    SetConsoleCommand("TowerDefense", __CC_upgradeTower_name, &TowerDefense::upgradeTower).addShortcut().defaultValues(0);

    RegisterUnloadableClass(TowerDefense);

    TowerDefense::TowerDefense(Context* context) : TeamDeathmatch(context)
    {
        RegisterObject(TowerDefense);
/*
        for (int i=0; i < 16 ; i++){
            for (int j = 0; j< 16 ; j++){
                towermatrix[i][j] = NULL;
            }
        }*/

        //Timer for the waves (10 seconds between the waves)
        selecter = NULL;
        this->player_ = NULL;        
        this->setHUDTemplate("TowerDefenseHUD");
        this->nextwaveTimer_.setTimer(10, false, createExecutor(createFunctor(&TowerDefense::nextwave, this)));
        this->nextwaveTimer_.stopTimer();
        this->waves_ = 0;
        this->time = 0;
        this->credit_ = 0;
        this->lifes_ = 0;
        this->timeSetTower_ = 0;
        spaceships =15;
        eggs=3;
        ufos=7;
        randomships=5;


        ModifyConsoleCommand(__CC_addTower_name).setObject(this);
        ModifyConsoleCommand(__CC_upgradeTower_name).setObject(this);
    }

    TowerDefense::~TowerDefense()
    {
        /* Part of a temporary hack to allow the player to add towers */
        if (this->isInitialized())
        {
            ModifyConsoleCommand(__CC_addTower_name).setObject(NULL);
            ModifyConsoleCommand(__CC_upgradeTower_name).setObject(NULL);
        }
    }

    void TowerDefense::setCenterpoint(TowerDefenseCenterpoint *centerpoint)
    {
        orxout() << "Centerpoint now setting..." << endl;
        this->center_ = centerpoint;
        orxout() << "Centerpoint now set..." << endl;
    }

    void TowerDefense::start()
    {
        if (center_ != NULL) // There needs to be a TowerDefenseCenterpoint, i.e. the area the game takes place.
        {
            if (selecter == NULL)
            {
                selecter = new TowerDefenseSelecter(this->center_->getContext());                
            }
            selecter->addTemplate(center_->getSelecterTemplate());
            center_->attach(selecter);
        }
        else // If no centerpoint was specified, an error is thrown and the level is exited.
        {
            orxout(internal_error) << "Jump: No Centerpoint specified." << endl;
            return;
        }

        TeamDeathmatch::start();

        // Waypoints: [1,3] [10,3] [10,11] [13,11] -> add the points to a matrix so the player cant place towers on the path
        for (int i=0; i < 16 ; i++)
        {
            for (int j = 0; j< 16 ; j++)
            {
                towerModelMatrix[i][j] = NULL;
                towerTurretMatrix[i][j] = NULL;
            }
        }

        

        if (player_ != NULL)
        {
            //this->player_->startControl(selecter);
        }
        else
        {
            orxout() << "player=NULL" << endl;
        }


        Model* dummyModel = new Model(this->center_->getContext());

        //the path of the spacehips has to be blocked, so that no towers can be build there
        for (int k=0; k<3; k++)
            towerModelMatrix[1][k]=dummyModel;
        for (int l=1; l<11; l++)
        	towerModelMatrix[l][3]=dummyModel;
        for (int m=3; m<12; m++)
        	towerModelMatrix[10][m]=dummyModel;
        for (int n=10; n<14; n++)
        	towerModelMatrix[n][11]=dummyModel;
        for (int o=13; o<16; o++)
        	towerModelMatrix[13][o]=dummyModel;


        //set initial credits, lifes and WaveNumber
        this->setCredit(100);
        this->setLifes(100);
        this->setWaveNumber(0);
        time=0.0;

        /*
        //adds initial towers
        for (int i=0; i <7; i++){
            addTower(i+3,4);
        }
		*/
    }

    // Generates a TowerDefenseEnemy. Uses Template "enemytowerdefense". Sets position at first waypoint of path.
    void TowerDefense::addTowerDefenseEnemy(std::vector<TDCoordinate*> path, int templatenr){


        TowerDefenseEnemy* en1 = new TowerDefenseEnemy(this->center_->getContext());
        
        switch(templatenr)
        {
        case 1 :
            en1->addTemplate("enemytowerdefense1");
            en1->setScale(3);
            en1->lookAt(Vector3(0,0,100000));
            en1->setHealth(en1->getHealth() +50 + this->getWaveNumber()*4);
            break;

        case 2 :
            en1->addTemplate("enemytowerdefense2");
            en1->setScale(2);
            en1->lookAt(Vector3(0,0,100000));
            en1->roll(Degree(120));
            en1->setHealth(en1->getHealth() -30 + this->getWaveNumber()*4);
            //  en1->setShieldHealth(en1->getShield() = this->getWaveNumber()*2))
            break;

        case 3 :
            en1->addTemplate("enemytowerdefense3");
            en1->setScale(1);
            en1->lookAt(Vector3(0,0,100000));
            en1->roll(Degree(120));
            en1->setHealth(en1->getHealth() -10 + this->getWaveNumber()*4);
            break;
        }

        en1->setTeam(2);
        en1->getController();
        en1->setPosition(path.at(0)->get3dcoordinate());        
        TowerDefenseEnemyvector.push_back(en1);

        for(unsigned int i = 0; i < path.size(); ++i)
        {
            en1->addWaypoint((path.at(i)));
        }
    }


    void TowerDefense::end()
    {

        TeamDeathmatch::end();
        ChatManager::message("Match is over! Gameover!");

    }

    void TowerDefense::spawnPlayer(PlayerInfo* player)
    {
        assert(player);
        this->player_ = player;

        if (selecter->getPlayer() == NULL)
        {
            this->player_ = player;
            player->startControl(selecter);
            players_[player].state_ = PlayerState::Alive;
        } 
    }

    /**
    @brief
        Get the player.
    @return
        Returns a pointer to the player. If there is no player, NULL is returned.
    */
    PlayerInfo* TowerDefense::getPlayer(void) const
    {
        return this->player_;
    }

    //not working yet
    void TowerDefense::upgradeTower(int x,int y)
    {
        TDCoordinate* coord = new TDCoordinate(x,y);
        x = coord->GetX();
        y = coord->GetY();
        

        if (!this->hasEnoughCreditForTower(upgradeCost))
        {
            orxout() << "not enough credit: " << (this->getCredit()) << " available, " << upgradeCost << " needed.";
            return;
        }


        Model* dummyModel2 = new Model(this->center_->getContext());

        if (towerModelMatrix [x][y] == NULL || (towerModelMatrix [x][y])->getMeshSource() == dummyModel2->getMeshSource())
        {
            orxout() << "no tower on this position" << endl;
            return;
        }

        else
        {
            (towerTurretMatrix [x][y])->upgradeTower();
            switch(towerTurretMatrix[x][y]->upgrade)
                   {
                   case 1 :
                	   towerModelMatrix[x][y]->setMeshSource("TD_T2.mesh");
                	   break;

                   case 2 :
                	   towerModelMatrix[x][y]->setMeshSource("TD_T3.mesh");
                	   break;
                   case 3 :
                	   towerModelMatrix[x][y]->setMeshSource("TD_T4.mesh");
                	   break;
                   case 4 :
                	   towerModelMatrix[x][y]->setMeshSource("TD_T5.mesh");
                	   break;

                   }

            this->buyTower(upgradeCost);
        }
    }

    /*adds Tower at Position (x,y) and reduces credit and adds the point to the towermatrix. template ("towerturret")
    so towers have ability if the turrets
    */

    void TowerDefense::addTower(int x, int y)
    {        
        TDCoordinate* coord = new TDCoordinate(x,y);
        x = coord->GetX();
        y = coord->GetY();


        if (!this->hasEnoughCreditForTower(towerCost))
        {
            orxout() << "not enough credit: " << (this->getCredit()) << " available, " << towerCost << " needed.";
            return;
        }

        if (towerModelMatrix [x][y]!=NULL)
        {
            orxout() << "not possible to put tower here!!" << endl;
            return;
        }

/*
        unsigned int width = this->center_->getWidth();
        unsigned int height = this->center_->getHeight();
*/

        int tileScale = (int) this->center_->getTileScale();

        /*if (x > 15 || y > 15 || x < 0 || y < 0)
        {
            //Hard coded: TODO: let this depend on the centerpoint's height, width and fieldsize (fieldsize doesn't exist yet)
            orxout() << "Can not add Tower: x and y should be between 0 and 15" << endl;
            return;
        }*/

        //orxout() << "Will add tower at (" << (x-8) * tileScale << "," << (y-8) * tileScale << ")" << endl;
        orxout() << "Will add tower at (" << x << "," << y << ")" << endl;


        //Create Model
        Model* newTowerModel = new Model(this->center_->getContext());
        newTowerModel->setMeshSource("TD_T1.mesh");
        newTowerModel->setScale(30);
        newTowerModel->pitch(Degree(90));
        newTowerModel->setPosition(static_cast<float>((x-8) * tileScale), static_cast<float>((y-8) * tileScale), 80);

        //Creates tower
        TowerDefenseTower* towernew = new TowerDefenseTower(this->center_->getContext());
        towernew->setPosition(static_cast<float>((x-8) * tileScale), static_cast<float>((y-8) * tileScale), 275);
        towernew->setGame(this);
        towernew->setTeam(1);

        //Reduce credit
         this->buyTower(towerCost);
         towerModelMatrix [x][y]= newTowerModel;
         towerTurretMatrix [x][y]= towernew;
    }    

    bool TowerDefense::hasEnoughCreditForTower(int towerCost)
    {
        return ((this->getCredit()) >= towerCost);
    }


    bool TowerDefense::hasEnoughCreditForUpgrade()
    {
        return true;
    }

 
    void TowerDefense::nextwave()
    {

    	orxout() << "newwave" << endl;
    	TowerDefenseEnemyvector.clear();
    	waves_++;
        //maxspaceships = round(maxspaceshipsstandard + 0.25*(waves_));
    	time=0;

    	int helpnumber = 40 -(waves_);
    	if(helpnumber <= 0) {helpnumber =1;}
        float numSpaceships = std::abs((rand() % 100)*5.0f*(helpnumber));
        float numEggs = std::abs((rand() % 100)*1.0f*(waves_));
        float numUfos = std::abs((rand() % 100)*1.5f*(0.5f*(waves_))) ;

        float totalnumber = (numSpaceships + numEggs + numUfos)*1.3f;

        int newspaceships = (int)(maxspaceships* numSpaceships / totalnumber);
        int neweggs = (int)(maxspaceships*numEggs / totalnumber);
        int newufos = (int)(maxspaceships*numUfos / totalnumber);
        int newrandomships = maxspaceships -newspaceships - neweggs - newufos;
        spaceships =newspaceships;
        eggs=neweggs;
        ufos=newufos;
        randomships=newrandomships;

        orxout() << spaceships << endl;
        orxout() << eggs << endl;
        orxout() << ufos << endl;
        orxout() << randomships << endl;





    }

    void TowerDefense::tick(float dt)
    {
        SUPER(TowerDefense, tick, dt);
        time +=dt;
        timeSetTower_ +=dt;

        //Check if tower has to be set (because TowerDefenseSelecter asks for it)
        if(timeSetTower_ >= 0.25)
        {
        	timeSetTower_ =0;
			if(selecter != NULL && selecter->firePressed_)
			{

				int x = selecter->selectedPos_->GetX();
				int y = selecter->selectedPos_->GetY();
				Model* dummyModel2 = new Model(this->center_->getContext());



				if(towerModelMatrix[x][y] == NULL)
				{
					addTower(x,y);
				}
				else
				{
					if(!((towerModelMatrix [x][y])->getMeshSource() == dummyModel2->getMeshSource()))
					{
						towerTurretMatrix[x][y]->upgradeTower();
				        if(towerTurretMatrix[x][y]->upgrade < towerTurretMatrix[x][y]->upgradeMax)
				        {
				        	int specificupgradecost = (int)(upgradeCost*(std::pow(1.5,towerTurretMatrix[x][y]->upgrade)));
				        	if(this->credit_ >= specificupgradecost)
				        	{
					        	this->buyTower(specificupgradecost);
								switch(towerTurretMatrix[x][y]->upgrade)
							   {
								   case 1 :
									   towerModelMatrix[x][y]->setMeshSource("TD_T2.mesh");
									   break;

								   case 2 :
									   towerModelMatrix[x][y]->setMeshSource("TD_T3.mesh");
									   break;
				                   case 3 :
				                	   towerModelMatrix[x][y]->setMeshSource("TD_T4.mesh");
				                	   break;
				                   case 4 :
				                	   towerModelMatrix[x][y]->setMeshSource("TD_T5.mesh");
				                	   break;

							   }
				        	}


				        }
					}
				}
				selecter->firePressed_ = false;
			}
        }

        TDCoordinate* coord1 = new TDCoordinate(1,1);
        std::vector<TDCoordinate*> path;
        path.push_back(coord1);





        if(time>=TowerDefenseEnemyvector.size() && TowerDefenseEnemyvector.size() < maxspaceships)
		{

        	//adds different types of enemys depending on the WaveNumber progressively making the combination of enemys more difficult
        	if(spaceships>0)
        	{
    			addTowerDefenseEnemy(path, 1);
    			spaceships--;

        	}else if(ufos>0)
        	{
    			addTowerDefenseEnemy(path, 3);
    			ufos--;
        	}else if(eggs>0)
        	{
    			addTowerDefenseEnemy(path, 2);
    			eggs--;
        	}else if(randomships>0)
        	{
    			addTowerDefenseEnemy(path, rand() % 3 +1);
    			randomships--;

        	}

		}


        Vector3* endpoint = new Vector3(500, 700, 150);
        //if ships are at the end they get destroyed
        for(unsigned int i =0; i < TowerDefenseEnemyvector.size(); ++i)
        {
            if(TowerDefenseEnemyvector.at(i) != NULL && TowerDefenseEnemyvector.at(i)->isAlive())
            {
                //destroys enemys at the end of the path and reduces the life by 1. no credits gifted

                Vector3 ship = TowerDefenseEnemyvector.at(i)->getRVWorldPosition();
                float distance = ship.distance(*endpoint);

                if(distance <50){
                    TowerDefenseEnemyvector.at(i)->destroy();
                    this->reduceLifes(1);
                    this->buyTower(1);
                    if (this->getLifes()==0)
                    {
                        this->end();
                    }
                }
            }
        }

        //goes thorugh vector to see if an enemy is still alive. if not next wave is launched
        int count= 0;
        for(unsigned int i =0; i < TowerDefenseEnemyvector.size(); ++i)
        {
            if(TowerDefenseEnemyvector.at(i)!= NULL)
            {
                ++count;
            }
        }

        if (count == 0 && !this->nextwaveTimer_.isActive())
            this->nextwaveTimer_.startTimer();

/*            time2 +=dt;
        if(count== 0)
        {
            if(time2 > 10)
            {
                TowerDefenseEnemyvector.clear();
                this->nextwave();
                time=0;
                time2=0;
            }
        }
*/

    }


    // Function to test if we can add waypoints using code only. Doesn't work yet

    // THE PROBLEM: WaypointController's getControllableEntity() returns null, so it won't track. How do we get the controlableEntity to NOT BE NULL???
    /*
    void TowerDefense::addWaypointsAndFirstEnemy()
    {
        SpaceShip *newShip = new SpaceShip(this->center_);
        newShip->addTemplate("spaceshipassff");

        WaypointController *newController = new WaypointController(newShip);
        newController->setAccuracy(3);

        Model *wayPoint1 = new Model(newController);
        wayPoint1->setMeshSource("crate.mesh");
        wayPoint1->setPosition(7,-7,5);
        wayPoint1->setScale(0.2);

        Model *wayPoint2 = new Model(newController);
        wayPoint2->setMeshSource("crate.mesh");
        wayPoint2->setPosition(7,7,5);
        wayPoint2->setScale(0.2);

        newController->addWaypoint(wayPoint1);
        newController->addWaypoint(wayPoint2);

        // The following line causes the game to crash

        newShip->setController(newController);
//        newController -> getPlayer() -> startControl(newShip);
        newShip->setPosition(-7,-7,5);
        newShip->setScale(0.1);
        //newShip->addSpeed(1);



//      this->center_->attach(newShip);
    }
    */
    /*
    void TowerDefense::playerEntered(PlayerInfo* player)
    {
        TeamDeathmatch::playerEntered(player);

        const std::string& message = player->getName() + " entered the game";
        ChatManager::message(message);
    }

    bool TowerDefense::playerLeft(PlayerInfo* player)
    {
        bool valid_player = TeamDeathmatch::playerLeft(player);

        if (valid_player)
        {
            const std::string& message = player->getName() + " left the game";
            ChatManager::message(message);
        }

        return valid_player;
    }


    void TowerDefense::pawnKilled(Pawn* victim, Pawn* killer)
    {
        if (victim && victim->getPlayer())
        {
            std::string message;
            if (killer)
            {
                if (killer->getPlayer())
                    message = victim->getPlayer()->getName() + " was killed by " + killer->getPlayer()->getName();
                else
                    message = victim->getPlayer()->getName() + " was killed";
            }
            else
                message = victim->getPlayer()->getName() + " died";

            ChatManager::message(message);
        }

        TeamDeathmatch::pawnKilled(victim, killer);
    }

    void TowerDefense::playerScored(PlayerInfo* player, int score)
    {
        Gametype::playerScored(player, score);
    }*/
}