source: code/branches/towerdefenseFabien/src/modules/towerdefense/TowerDefense.cc @ 10588

/*
 *   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 "worldentities/SpawnPoint.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"


namespace orxonox
{
    static const std::string __CC_addTower_name  = "addTower";
    static const std::string __CC_upgradeTower_name = "upgradeTower";

    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);

        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->stats_ = new TowerDefensePlayerStats();

        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)
    {
        this->center_ = centerpoint;
    }

    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;
        }

        enemies_.clear();

        createFields();

        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
        

        //set initial credits, lifes and WaveNumber
        this->setCredit(1000);
        this->setLifes(100);
        this->setWaveNumber(0);
        time = 0.0;
    }

    // Generates a TowerDefenseEnemy. Uses Template "enemytowerdefense". Sets position at first waypoint of path.
    void TowerDefense::addTowerDefenseEnemy(int templatenr)
    {
        orxout() << "addTowerDefenseEnemy" << endl;

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

        case 2 :
            en1->addTemplate("enemytowerdefense2");
            en1->setScale(2);
            en1->setHealth(en1->getHealth() + this->getWaveNumber()*4);
            break;

        case 3 :
            en1->addTemplate("enemytowerdefense3");
            en1->setScale(1);
            en1->setHealth(en1->getHealth() + this->getWaveNumber()*4);
            break;
        }        

        en1->setTeam(2);

        //orxonox::WeakPtr<WaypointController> controller = new WaypointController(this->center_->getContext());
        //controller->setControllableEntity(en1);
        //en1->setController(controller);

        WaypointController* controller = (WaypointController*)(en1->getXMLController());

        if (controller != NULL && waypoints_.size() > 1)
        {
            en1->setPosition(waypoints_.at(0)->getPosition());
            en1->setOrientation(Vector3(0,0,10), Degree(0));
            en1->setDirection(Vector3(0,1,0));
            en1->lookAt(waypoints_.at(1)->getPosition());

            for (unsigned int i = 0; i < waypoints_.size(); ++ i)
            {
                orxonox::WeakPtr<MovableEntity> waypoint = new MovableEntity(this->center_->getContext());
                waypoint->setPosition(waypoints_.at(i)->getPosition());
                controller->addWaypoint(waypoint);
            }
        }

        enemies_.push_back(en1);
    }


    void TowerDefense::end()
    {

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

    }

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

        orxout() << "spawnPlayer" << endl;

        if (selecter->getPlayer() == NULL)
        {
            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::addTower(int x,int y)
    {
        TDCoordinate* coord = new TDCoordinate(x,y);
        x = coord->GetX();
        y = coord->GetY();

        int cost = center_->getTowerCost(1);

        if (fields_[x][y]->isFree() == true && getCredit() >= cost)
        {
            payCredit(cost);
            fields_[x][y]->createTower(1);
        }
    }

    /*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::upgradeTower(int x, int y)
    {    
        TDCoordinate* coord = new TDCoordinate(x,y);
        x = coord->GetX();
        y = coord->GetY();     

        int cost = center_->getTowerCost(fields_[x][y]->getUpgrade() + 1);

        if (fields_[x][y]->isFree() == false && fields_[x][y]->canUpgrade() == true && getCredit() >= cost)
        {
            payCredit(cost);
            fields_[x][y]->upgrade();
        }
    }    

    void TowerDefense::tick(float dt)
    {
        //orxout() << "tick1" << endl;
        SUPER(TowerDefense, tick, dt);
        //orxout() << "tick2" << endl;

        if (hasStarted() == false || player_ == NULL)
        {
            return;
        }
        time += dt;       

        //build/upgrade tower at selecter position
        if (selecter != NULL && selecter->buildTower_ == true)
        {
            selecter->buildTower_ = false;

            if (getField(selecter->selectedPos_)->canUpgrade() == true)
            {
                upgradeTower(selecter->selectedPos_->GetX(), selecter->selectedPos_->GetY());
            }
            else
            {
                addTower(selecter->selectedPos_->GetX(), selecter->selectedPos_->GetY());
            }            
        }

        if (time >= 1.3 * enemies_.size() && enemies_.size() < 10)
        {
            //adds different types of enemys depending on the WaveNumber
            addTowerDefenseEnemy(this->getWaveNumber() % 3 +1 );
        }

        //if ships are at the end they get destroyed

        for (std::list<WeakPtr<TowerDefenseEnemy> >::iterator it = enemies_.begin(); it != enemies_.end(); )
        {
            //destroys enemys at the end of the path and reduces the life by 1. No credits gifted
            Vector3 ship = (*it)->getRVWorldPosition();
            float distance = ship.distance(endpoint_);
            if(distance < 50)
            {
                orxout() << "enemy deleted" << endl;                
                (*it)->destroy();
                enemies_.erase(it++);
                this->reduceLifes(1);
                if (this->getLifes() == 0)
                {
                    this->end();
                }
            }
            else
            {
                ++ it;
            }
        }        

        if (enemies_.size() == 0 && !this->nextwaveTimer_.isActive())
        {
            this->nextwaveTimer_.startTimer();
        }
    }

    void TowerDefense::createFields()
    {
        assert(center_);
        TDCoordinate coord(0,0);
        TDCoordinate startCoord(0,0);

        std::string fields = center_->getFields();
        int pos = 0;
        for (int j = 15; j >= 0; --j)
        {
            for (int i = 0; i < 16; ++i)
            {
                coord.Set(i,j);
                fields_[i][j] = new TowerDefenseField(center_->getContext());
                fields_[i][j]->setCenterpoint(center_);
                center_->attach(fields_[i][j]);
                fields_[i][j]->setPosition(coord.get3dcoordinate());                
                fields_[i][j]->create(fields.at(pos), fields.at(pos+1));           
                pos += 2;
                if (fields_[i][j]->getType() == START)
                {
                    startCoord.Set(i,j);
                    waypoints_.push_back(fields_[i][j]);
                }
            }
        }

        //Place waypoints along the street for the waypoint controllers of the enemies
        TDCoordinate* thisCoord = &startCoord;
        TDCoordinate* nextCoord;
        while ((nextCoord = getNextStreetCoord(thisCoord)) != NULL)
        {
            waypoints_.push_back(fields_[nextCoord->GetX()][nextCoord->GetY()]);            
            thisCoord = nextCoord;
            endpoint_ = nextCoord->get3dcoordinate();
        }

    }

    TDCoordinate* TowerDefense::getNextStreetCoord(TDCoordinate* thisCoord)
    {        
        TowerDefenseField* thisField = fields_[thisCoord->GetX()][thisCoord->GetY()];
        TDCoordinate* nextCoord = new TDCoordinate(0,0);

        if (thisField->getType() != STREET && thisField->getType() != START)
        {
            return NULL;
        }

        if (thisField->getAngle() == 0)
        {
            nextCoord->Set(thisCoord->GetX(), thisCoord->GetY() - 1);
        }
        else if (thisField->getAngle() == 1)
        {
            nextCoord->Set(thisCoord->GetX() + 1, thisCoord->GetY());
        }
        else if (thisField->getAngle() == 2)
        {
            nextCoord->Set(thisCoord->GetX(), thisCoord->GetY() + 1);
        }
        else if (thisField->getAngle() == 3)
        {
            nextCoord->Set(thisCoord->GetX() - 1, thisCoord->GetY());
        }

        if (thisCoord->GetX() != nextCoord->GetX() || thisCoord->GetY() != nextCoord->GetY())
        {
            return nextCoord;
        }

        return NULL;
    }

    /*
    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);
    }*/
}