source: orxonox.OLD/branches/playability/src/world_entities/space_ships/space_ship.cc @ 10098

/*
   orxonox - the future of 3D-vertical-scrollers

   Copyright (C) 2004 orx

   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, or (at your option)
   any later version.

### File Specific:
   main-programmer: Benjamin Knecht
   co-programmer: Silvan Nellen

*/

#define DEBUG_SPECIAL_MODULE DEBUG_MODULE_WORLD_ENTITY

#include "executor/executor.h"
#include "space_ship.h"

#include "util/loading/resource_manager.h"

#include "weapons/test_gun.h"
#include "weapons/light_blaster.h"
#include "weapons/medium_blaster.h"
#include "weapons/heavy_blaster.h"
#include "weapons/swarm_launcher.h"
#include "weapons/boomerang_gun.h"
#include "weapons/turret.h"
#include "weapons/cannon.h"

#include "particles/dot_emitter.h"
#include "particles/emitter_node.h"
#include "particles/sprite_particles.h"
#include "effects/explosion.h"
#include "effects/trail.h"

#include "util/loading/factory.h"
#include "key_mapper.h"

#include "network_game_manager.h"
#include "shared_network_data.h"

#include "power_ups/weapon_power_up.h"
#include "power_ups/param_power_up.h"

#include "graphics_engine.h"

#include "plane.h"

#include "state.h"
#include "player.h"

#include "util/loading/load_param.h"
#include "time.h"

#include "track/track.h"


// #include "lib/gui/gl_gui/glgui_bar.h"
// #include "lib/gui/gl_gui/glgui_pushbutton.h"


#include "class_id_DEPRECATED.h"
ObjectListDefinitionID(SpaceShip, CL_SPACE_SHIP);
CREATE_FACTORY(SpaceShip);

#include "script_class.h"
CREATE_SCRIPTABLE_CLASS(SpaceShip,
                        addMethod("hasPlayer", Executor0ret<Playable, lua_State*,bool>(&Playable::hasPlayer))
                        ->addMethod("fire", Executor1<Playable, lua_State*, bool>(&Playable::fire))
                        ->addMethod("loadModel", Executor2<WorldEntity, lua_State*,const std::string& ,float>(&WorldEntity::loadModel2))
                        ->addMethod("setName", Executor1<BaseObject, lua_State*,const std::string&>(&BaseObject::setName))
                        ->addMethod("hide", Executor0<WorldEntity, lua_State*>(&WorldEntity::hide))
                        ->addMethod("unhide", Executor0<WorldEntity, lua_State*>(&WorldEntity::unhide))
                        //Coordinates
                        ->addMethod("setAbsCoor", Executor3<PNode, lua_State*,float,float,float>(&PNode::setAbsCoor))
                        ->addMethod("getAbsCoorX", Executor0ret<PNode, lua_State*, float>(&PNode::getAbsCoorX))
                        ->addMethod("getAbsCoorY", Executor0ret<PNode, lua_State*, float>(&PNode::getAbsCoorY))
                        ->addMethod("getAbsCoorZ", Executor0ret<PNode, lua_State*, float>(&PNode::getAbsCoorZ))
                        //->addMethod("setCameraSpeed", Executor1<SpaceShip, lua_State*, float>(&SpaceShip::setCameraSpeed))
                       );

/**
 *  destructs the spaceship, deletes alocated memory
 */
SpaceShip::~SpaceShip ()
{
  this->setPlayer(NULL);
}

/**
 * loads a Spaceships information from a specified file.
 * @param fileName the name of the File to load the spaceship from (absolute path)
 */
SpaceShip::SpaceShip(const std::string& fileName)
    : secWeaponMan(this) //,
    //supportedPlaymodes(Playable::Vertical) ,
    //playmode(Playable::Vertical)
{
  this->init();
  TiXmlDocument doc(fileName);

  if(!doc.LoadFile())
  {
    PRINTF(2)("Loading file %s failed for spaceship.\n", fileName.c_str());
    return;
  }

  this->loadParams(doc.RootElement());
}

/**
 *  creates a new Spaceship from Xml Data
 * @param root the xml element containing spaceship data

   @todo add more parameters to load
*/
SpaceShip::SpaceShip(const TiXmlElement* root)
    : secWeaponMan(this) //,
    //supportedPlaymodes(Playable::Vertical) ,
    //playmode(Playable::Vertical)
{
  this->init();
  //this->setParentMode(PNODE_REPARENT_DELETE_CHILDREN);
  if (root != NULL)
    this->loadParams(root);

}


/**
 * initializes a Spaceship
 */
void SpaceShip::init()
{

  srand(time(0));   //initialize Random Nomber Generator

  //  this->setRelDir(Quaternion(M_PI, Vector(1,0,0)));
  this->registerObject(this, SpaceShip::_objectList);
  PRINTF(4)("SPACESHIP INIT\n");

  //weapons:
  
  Weapon* wpRight1 = new LightBlaster ();
  wpRight1->setName( "LightBlaster");
  wpRight1->setParent( this);
  Weapon* wpLeft1 = new LightBlaster ();
  wpLeft1->setName( "LightBlaster");
  wpLeft1->setParent( this);

  Weapon* wpRight2 = new MediumBlaster ();
  wpRight2->setName( "MediumBlaster");
  wpRight2->setParent( this);
  Weapon* wpLeft2 = new MediumBlaster ();
  wpLeft2->setName( "MediumBlaster");
  wpLeft2->setParent( this);
  
  Weapon* wpRight3 = new HeavyBlaster ();
  wpRight3->setName( "HeavyBlaster");
  wpRight3->setParent( this);
  Weapon* wpLeft3 = new HeavyBlaster ();
  wpLeft3->setName( "HeavyBlaster");
  wpLeft3->setParent( this);

  Weapon* cannon = new SwarmLauncher();
  cannon->setName( "SwarmLauncher");
  cannon->setParent( this);


  this->weaponMan.addWeapon( wpLeft1, 0, 0);
  this->weaponMan.addWeapon( wpRight1, 0, 1);
  this->weaponMan.addWeapon( wpLeft2, 0, 2);
  this->weaponMan.addWeapon( wpRight2, 0, 3);
  this->weaponMan.addWeapon( wpLeft3, 0, 4);
  this->weaponMan.addWeapon( wpRight3, 0, 5);

  this->secWeaponMan.addWeapon( cannon, 1, 0);

  this->weaponMan.changeWeaponConfig(0);
  this->secWeaponMan.changeWeaponConfig(1);

  wpRight1->requestAction(WA_ACTIVATE);
  wpLeft1->requestAction(WA_ACTIVATE);
  wpRight2->requestAction(WA_ACTIVATE);
  wpLeft2->requestAction(WA_ACTIVATE);
  wpRight3->requestAction(WA_ACTIVATE);
  wpLeft3->requestAction(WA_ACTIVATE);

  cannon->requestAction(WA_ACTIVATE);

  curWeaponPrimary    = 0;
  curWeaponSecondary  = 0;

  Playable::weaponConfigChanged();

  reactorOutput     = 10;

  weaponEnergyRegen = 10;       // 10 einheiten pro Sekunde
  engineSpeedBase   = 5;
  shieldRegen       = 2;

  shieldEnergyShare = 0.3;
  weaponEnergyShare = 0.3;
  engineEnergyShare = 0.4;

  shieldCur         = 20;
  shieldMax         = 100;
  shieldTH          = .2* shieldMax;   // shield power must be 20% before shield kicks in again

  electronicCur = 50;
  electronicMax = 50;
  electronicRegen   = 3;
  electronicTH      = .7 * electronicMax; // 30% of eDamage can be handled by the ship


  this->loadModel("models/ships/mantawing.obj");
  //this->setVisibiliy(false);

  bForward = bBackward = bLeft = bRight = bAscend = bDescend = bRollL = bRollR = bFire = bSecFire = false;
  

  this->setHealthMax(shieldMax);
  this->setHealth(shieldCur);

  this->travelNode = new PNode();

  // camera - issue
  this->cameraNode.addNodeFlags(PNODE_PROHIBIT_DELETE_WITH_PARENT);
  this->cameraNode.addNodeFlags(PNODE_PROHIBIT_CHILD_DELETE);



  //add events to the eventlist
  registerEvent(KeyMapper::PEV_FORWARD);
  registerEvent(KeyMapper::PEV_BACKWARD);
  registerEvent(KeyMapper::PEV_LEFT);
  registerEvent(KeyMapper::PEV_RIGHT);
  //registerEvent(SDLK_q);
  //registerEvent(SDLK_e);
  registerEvent(KeyMapper::PEV_FIRE1);
  registerEvent(KeyMapper::PEV_FIRE2);                  // Added for secondary weapon support
  registerEvent(KeyMapper::PEV_NEXT_WEAPON);
  registerEvent(KeyMapper::PEV_PREVIOUS_WEAPON);
  //registerEvent(SDLK_PAGEUP);
  //registerEvent(SDLK_PAGEDOWN);
  registerEvent(EV_MOUSE_MOTION);

  this->weaponMan.setParentEntity( this);
  this->secWeaponMan.setParentEntity( this);

  this->weaponMan.setSlotCount(6);

  this->weaponMan.setSlotPosition(0, Vector(-2.6, 0, -3.0));
  this->weaponMan.setSlotCapability(0, WTYPE_ALLDIRS | WTYPE_DIRECTIONAL);

  this->weaponMan.setSlotPosition(1, Vector(-2.6, 0, 3.0));
  this->weaponMan.setSlotCapability(1, WTYPE_ALLDIRS | WTYPE_DIRECTIONAL);

  this->weaponMan.setSlotPosition(2, Vector(-1.5, 0, -.5));
  this->weaponMan.setSlotDirection(2, Quaternion(-M_PI_4*.5, Vector(1,0,0)));

  this->weaponMan.setSlotPosition(3, Vector(-1.5, 0, .5));
  this->weaponMan.setSlotDirection(3, Quaternion(M_PI_4*.5, Vector(1,0,0)));

  this->weaponMan.setSlotPosition(4, Vector(-1.5, 0, .5));
  this->weaponMan.setSlotDirection(4, Quaternion(-M_PI_4*.5+M_PI, Vector(1,0,0)));

  this->weaponMan.setSlotPosition(5, Vector(-1.5, 0, -.5));
  this->weaponMan.setSlotDirection(5, Quaternion(+M_PI_4*.5-M_PI, Vector(1,0,0)));

  this->secWeaponMan.setSlotCount(6);

  this->secWeaponMan.setSlotPosition(0, Vector(1.5, 0, 0));
  this->secWeaponMan.setSlotCapability(0, WTYPE_ALLDIRS | WTYPE_DIRECTIONAL);

  this->secWeaponMan.setSlotPosition(1, Vector(2.6, 0, 3.0));
  this->secWeaponMan.setSlotCapability(1, WTYPE_ALLDIRS | WTYPE_DIRECTIONAL);

  this->secWeaponMan.setSlotPosition(2, Vector(1.5, 0, -.5));
  this->secWeaponMan.setSlotDirection(2, Quaternion(-M_PI_4*.5, Vector(1,0,0)));

  this->secWeaponMan.setSlotPosition(3, Vector(1.5, 0, .5));
  this->secWeaponMan.setSlotDirection(3, Quaternion(M_PI_4*.5, Vector(1,0,0)));

  this->secWeaponMan.setSlotPosition(4, Vector(1.5, 0, .5));
  this->secWeaponMan.setSlotDirection(4, Quaternion(-M_PI_4*.5+M_PI, Vector(1,0,0)));

  this->secWeaponMan.setSlotPosition(5, Vector(1.5, 0, -.5));
  this->secWeaponMan.setSlotDirection(5, Quaternion(+M_PI_4*.5-M_PI, Vector(1,0,0)));


  this->weaponMan.getFixedTarget()->setParent(this);
  this->weaponMan.getFixedTarget()->setRelCoor(100000,0,0);

  
  this->secWeaponMan.getFixedTarget()->setParent(this);
  this->secWeaponMan.getFixedTarget()->setRelCoor(100000,0,0);
  this->secWeaponMan.setRotationSpeed(0);

  dynamic_cast<Element2D*>(this->weaponMan.getFixedTarget())->setVisibility( false);


  registerVar( new SynchronizeableBool( &bForward, &bForward, "bForward", PERMISSION_OWNER ) );
  registerVar( new SynchronizeableBool( &bBackward, &bBackward, "bBackward", PERMISSION_OWNER ) );
  registerVar( new SynchronizeableBool( &bLeft, &bLeft, "bLeft", PERMISSION_OWNER ) );
  registerVar( new SynchronizeableBool( &bRight, &bRight, "bRight", PERMISSION_OWNER ) );
  registerVar( new SynchronizeableFloat( &cameraLook, &cameraLook, "cameraLook", PERMISSION_OWNER ) );
  registerVar( new SynchronizeableFloat( &rotation, &rotation, "rotation", PERMISSION_OWNER ) );
  registerVar( new SynchronizeableBool( &bFire, &bFire, "bSecFire", PERMISSION_OWNER));
  registerVar( new SynchronizeableVector( &velocity, &velocity, "velocity", PERMISSION_MASTER_SERVER ) );

  //this->airFriction = 0.5f;
  this->travelDistancePlus = Vector2D(38.0, 43.0);
  this->travelDistanceMinus = Vector2D(-38.0, -43.0);
  this->cameraSpeed = 40;
  this->cameraLook = 0.0f;
  //this->airFriction = 0.0f;

  srand(time(0));  //initaialize RNG

  this->travelNode->debugDraw();

  this->setSupportedPlaymodes(Playable::Horizontal | Playable::Vertical);

  
  this->trail = new Trail( 10, 10, .2, this);
  //this->trail->setParent( this);
  this->trail->setTexture( "maps/engine.png");

  this->trailL = new Trail( 10, 10, .2, this);
  //this->trailL->setParent( this);
  this->trailL->setTexture( "maps/engine.png");

  this->trailR = new Trail( 10, 10, .2, this);
  //this->trailR->setParent( this);
  this->trailR->setTexture( "maps/engine.png");

  
  this->toList(OM_GROUP_00);
}


/**
 * loads the Settings of a SpaceShip from an XML-element.
 * @param root the XML-element to load the Spaceship's properties from
 */
void SpaceShip::loadParams(const TiXmlElement* root)
{
  Playable::loadParams(root);

  LoadParam(root, "playmode", this, SpaceShip, setPlaymodeXML);
}


void SpaceShip::setPlayDirection(const Quaternion& rot, float speed)
{
  //this->direction = Quaternion (rot.getHeading(), Vector(0,1,0));
}

void SpaceShip::reset()
{
  bForward = bBackward = bLeft = bRight = bAscend = bDescend = bRollL = bRollR = bFire = bSecFire = false;

  //xMouse = yMouse = 0;

  this->setHealth(80);
  this->velocity = Vector(0.0, 0.0, 0.0);
}


void SpaceShip::enter()
{
  this->secWeaponMan.showCrosshair();
  this->toList( OM_GROUP_01 );
  /*
  for(ObjectList<PNode>::const_iterator it = this->getNodesChildren().begin(); it != this->getNodesChildren().end(); it++)
  {
    if( likely( dynamic_cast<Weapon*>(*it) != NULL))
      dynamic_cast<WorldEntity*>(*it)->toList( OM_GROUP_01);
  }*/
  //dynamic_cast<Element2D*>(this->secWeaponMan.getFixedTarget())->setVisibility( true);
  //this->attachCamera();
 // this->setPlaymode(Playable::Horizontal);
}

void SpaceShip::leave()
{
  this->secWeaponMan.hideCrosshair();
  this->toList( OM_GROUP_00);
  /*
  for(ObjectList<PNode>::const_iterator it = this->getNodesChildren().begin(); it != this->getNodesChildren().end(); it++)
  {
    if( likely( dynamic_cast<Weapon*>(*it) != NULL))
      dynamic_cast<WorldEntity*>(*it)->toList( OM_GROUP_00);
  }*/
  //dynamic_cast<Element2D*>(this->secWeaponMan.getFixedTarget())->setVisibility( false);
  //this->detachCamera();
}


/**
 *  effect that occurs after the SpaceShip is spawned
*/
void SpaceShip::postSpawn ()
{
  //setCollision(new CollisionCluster(1.0, Vector(0,0,0)));
}

/**
 *  the action occuring if the spaceship left the game
*/
void SpaceShip::leftWorld ()
{

}

WorldEntity* ref = NULL;
/**
 *  this function is called, when two entities collide
 * @param entity: the world entity with whom it collides
 *
 * Implement behaviour like damage application or other miscellaneous collision stuff in this function
 */
void SpaceShip::collidesWith(WorldEntity* entity, const Vector& location)
{
  PRINTF(0)("SPACESHIP COLLIDED WITH %s\n",entity->getCName());
}

/**
 *  draws the spaceship after transforming it.
*/
void SpaceShip::draw () const
{
  WorldEntity::draw();

  glMatrixMode(GL_MODELVIEW);
  glPushMatrix();

  float matrix[4][4];
  glTranslatef (this->getAbsCoor ().x-1, this->getAbsCoor ().y-.2, this->getAbsCoor ().z);
  this->getAbsDir().matrix (matrix);
  glMultMatrixf((float*)matrix);
  //glScalef(2.0, 2.0, 2.0);  // no double rescale
  
  this->trail->draw();
  
  glTranslatef(0,0,-.5);
  this->trailL->draw();

  glTranslatef(0,0,1);
  this->trailR->draw();
  glPopMatrix();
  //this->debug(0);
}

/**
 *  the function called for each passing timeSnap
 * @param time The timespan passed since last update
*/
void SpaceShip::tick (float time)
{
  // Playable::tick(time);$

  // Own Tick Setup, as a different fire routine is used on the weapon manager
  this->weaponMan.tick(time);
  this->secWeaponMan.tick(time);

  if( this->systemFailure() )
    bFire = bSecFire = false;

  // fire reqeust/release for primary weapons
  if( this->bFire)
    this->weaponMan.fire();
  else
    this->weaponMan.releaseFire();

  // fire reqeust/release for secondary weapons
  if( this->bSecFire)
    this->secWeaponMan.fire();
  else
    this->secWeaponMan.releaseFire();
    
  // Tracktick
  if(this->entityTrack)
    this->entityTrack->tick(time);


  // Shield Regeneration and other regular calculations on the ship 
  this->regen(time);

  // Weapon Regeneration and other regular calculations on the ship
  this->weaponRegen(time);

  // current engine speed output
  this->engineSpeedCur = this->engineSpeedBase + this->reactorOutput * this->engineEnergyShare;

  // calculation of maxSpeed and acceleration:
  this->travelSpeed = this->engineSpeedCur * 5;
  this->acceleration = this->travelSpeed * 2;

  this->movement(time);

   // TRYING TO FIX PNode.
  this->cameraNode.setAbsCoorSoft(this->getAbsCoor() + Vector(0.0f, 5.0f, 0.0f), 30.0f);
  this->cameraNode.setRelDirSoft(this->getAbsDir(), 30.0f);

  
  this->velocity  = (this->getAbsCoor() - this->oldPos) / time;
  this->oldPos    = this->getAbsCoor();

  this->trail->tick(time);
  this->trailL->tick(time);
  this->trailR->tick(time);

  //orient the spaceship in direction of the mouse
  /*
  rotQuat = Quaternion::quatSlerp( this->getAbsDir(), mouseDir, 0.5);//fabsf(time)*shipInertia);
  if (this->getAbsDir().distance(rotQuat) > 0.00000000000001)
    this->setAbsDir( rotQuat);
  //this->setAbsDirSoft(mouseDir,5);
  */

  // this is the air friction (necessary for a smooth control)
  /*
  if(travelSpeed >= 120) velocity -= velocity.getNormalized()*travelSpeed*travelSpeed*0.0001;
  else if (travelSpeed <= 80) velocity -= velocity.getNormalized()*travelSpeed*0.001;
  */

  //other physics (gravity)
  //if(travelSpeed < 120)
  //move += Vector(0,-1,0)*60*time + Vector(0,1,0)*travelSpeed/2*time;

  //hoover effect
  //cycle += time;
  //this->shiftCoor(Vector(0,1,0)*cos(this->cycle*2.0)*0.02);

  //readjust
  //if (this->getAbsDirZ().y > 0.1) this->shiftDir(Quaternion(time*0.3, Vector(1,0,0)));
  //else if (this->getAbsDirZ().y < -0.1) this->shiftDir(Quaternion(-time*0.3, Vector(1,0,0)));

  //SDL_WarpMouse(GraphicsEngine::getInstance()->getResolutionX()/2, GraphicsEngine::getInstance()->getResolutionY()/2);

  /*
  this->shiftCoor(move);
  */

  //   PRINTF(0)("id of %s is: %i\n", this->getName(), this->getOMListNumber());

}

/**
 * @todo switch statement ??
 */
void SpaceShip::process(const Event &event)
{
  //Playable::process(event);

  if( event.type == KeyMapper::PEV_LEFT)
    this->bLeft = event.bPressed;
  else if( event.type == KeyMapper::PEV_RIGHT)
    this->bRight = event.bPressed;
  else if( event.type == KeyMapper::PEV_FORWARD)
    this->bForward = event.bPressed; //this->shiftCoor(0,.1,0);
  else if( event.type == KeyMapper::PEV_BACKWARD)
    this->bBackward = event.bPressed; //this->shiftCoor(0,-.1,0);
  else if( event.type == KeyMapper::PEV_FIRE2)
    this->bSecFire = event.bPressed;
  else if( event.type == KeyMapper::PEV_FIRE1)
    this->bFire = event.bPressed;


  /*
  else if( event.type == EV_MOUSE_MOTION)
  {

    this->xMouse += event.xRel;
    this->yMouse += event.yRel;
  }
  */
}

void SpaceShip::destroy( WorldEntity* killer )
{
  PRINTF(0)("spaceship destroy\n");
  
  EmitterNode* node  = NULL;
  DotEmitter* emitter = NULL;
  SpriteParticles*  explosionParticles  = NULL;

  explosionParticles = new SpriteParticles(100);
  explosionParticles->setName("MBoltExplosionParticles");
  explosionParticles->setLifeSpan(.5, .3);
  explosionParticles->setRadius(0.0, 10.0);
  explosionParticles->setRadius(.5, 6.0);
  explosionParticles->setRadius(1.0, 3.0);
  explosionParticles->setColor(0.0, 1,1,1,.9);
  explosionParticles->setColor(0.1,  1,1,0,.9);
  explosionParticles->setColor(0.5, .8,.4,0,.5);
  explosionParticles->setColor(1.0, .2,.2,.2,.0);

  
  emitter = new DotEmitter( 200, 200, M_2_PI);
  emitter->setSpread( 0, M_2_PI);
  emitter->setEmissionRate( 400.0);
  //emitter->setEmissionVelocity( 200.0);
  emitter->setSystem( explosionParticles);
  emitter->setAbsCoor( this->getAbsCoor());

  node  = new EmitterNode( 1);
  node->setupParticle( emitter, explosionParticles);
  node->setVelocity( this->getParent()->getVelocity());
  node->setAbsCoor( this->getAbsCoor());
  node->start();
/*
  PNode* node          = new PNode();
  node->setAbsCoor(this->getAbsCoor());
  Explosion* explosion = new Explosion();
  explosion->explode( node, Vector(5,5,5));
*/
  this->setAbsCoor(Vector(-10000,10000,10000));
  //this->hide();

  this->toList( OM_DEAD);
  PRINTF(0)("spaceship destroy == ship translated \n");
}

void SpaceShip::respawn( )
{
  //this->unhide();
  /*for(ObjectList<PNode>::const_iterator it = this->getNodesChildren().begin(); it != this->getNodesChildren().end(); it++)
  {
    if( dynamic_cast<WorldEntity*>(*it) != NULL)
      dynamic_cast<WorldEntity*>(*it)->toList( OM_GROUP_00);
  }*/
  /*
  if( this->hasPlayer())
  {
    this->toList( OM_GROUP_01);
    for(ObjectList<PNode>::const_iterator it = this->getNodesChildren().begin(); it != this->getNodesChildren().end(); it++)
        {
          if( likely( dynamic_cast<Weapon*>(*it) != NULL))
                dynamic_cast<WorldEntity*>(*it)->toList( OM_GROUP_00_PROJ);
        }
  }
  else
  {
    this->toList( OM_GROUP_00);
    for(ObjectList<PNode>::const_iterator it = this->getNodesChildren().begin(); it != this->getNodesChildren().end(); it++)
        {
          if( likely( dynamic_cast<Weapon*>(*it) != NULL))
                dynamic_cast<WorldEntity*>(*it)->toList( OM_GROUP_01_PROJ);
        }
  }*/

}


void SpaceShip::damage(float pDamage, float eDamage){
  PRINTF(0)("ship hit for (%f,%f) \n",pDamage,eDamage);

  if( this->shieldActive) {
    if( this->shieldCur > pDamage) {
      this->shieldCur = this->shieldCur - pDamage;
    }
    else { // shield <= pDamage
      this->shieldCur -=pDamage;
      this->shieldActive = false; //shield collapses
      pDamage += this->shieldCur;
      if( !this->shieldActive) {
        this->armorCur -= pDamage / 2; // remaining damages hits armor at half rate
        this->electronicCur -= eDamage;
      }
    }
  }
  else {
    this->armorCur = this->armorCur - pDamage;
    this->electronicCur = this->electronicCur - eDamage;
  }
  if( this->armorCur <= 0) { /* FIXME implement shipcrash*/ }
    this->destroy(this);
}


void SpaceShip::regen(float time){
  float tmp;
  if (this->armorCur != this->armorMax || this->armorRegen != 0){
    tmp = this->armorCur + this->armorRegen * time;
    if ( tmp > electronicMax)
      this->armorCur = this->armorMax;
    else
      this->armorCur = tmp;
  }
  if (this->shieldCur != this->shieldMax || this->shieldRegen != 0){
    tmp =  this->shieldCur + (this->shieldRegen + this->reactorOutput * this->shieldEnergyShare) * time;
    if( tmp > shieldMax)
      this->shieldCur = this->shieldMax;
    else
      this->shieldCur = tmp;
    this->shieldActive = ( this->shieldActive || this->shieldCur > shieldTH);
  }

  this->setHealth( this->shieldCur);      // FIXME currently just to test share system

  if (this->electronicCur != this->electronicMax || this->electronicRegen != 0){
    tmp = this->electronicCur + this->electronicRegen * time;
    if ( tmp > electronicMax)
      this->electronicCur = this->electronicMax;
    else
      this->electronicCur = tmp;
  }
}


/**
 * Weapon regeneration
 * does not use any reactor capacity, as it wouldn't work in a consistent way.
 */
void SpaceShip::weaponRegen(float time)
{
  float energy  = ( this->reactorOutput * this->weaponEnergyShare + this->weaponEnergyRegen) * time;
  Weapon* weapon;
  for( unsigned int i=0; i < this->weaponMan.getSlotCount(); i++)
  {
    weapon = this->weaponMan.getWeapon(i);
    if( weapon != NULL && weapon->isActive())
    {
      weapon->increaseEnergy( energy);
    }

  }
  // weaponMan.increaseAmmunition( weapon, energy);
}


void SpaceShip::enterPlaymode(Playable::Playmode playmode)
{
  switch(playmode)
  {
    case Playable::Full3D:
      /*
      if (State::getCameraNode != NULL)
      {
        Vector absCoor = this->getAbsCoor();
        this->setParent(PNode::getNullParent());
        this->setAbsCoor(absCoor);
        State::getCameraNode()->setParentSoft(&this->cameraNode);
        State::getCameraNode()->setRelCoorSoft(-10, 0,0);
        State::getCameraTargetNode()->setParentSoft(&this->cameraNode);
        State::getCameraTargetNode()->setRelCoorSoft(100, 0,0);

      }
      */
      //break;

      break;
    case Playable::Horizontal:
      if (State::getCameraNode != NULL)
      {
        this->debugNode(1);
        this->travelNode->debugNode(1);

        this->travelNode->setAbsCoor(this->getAbsCoor());
        this->travelNode->updateNode(0.01f);

        this->setParent(this->travelNode);
        this->setRelCoor(0,0,0);

        State::getCameraNode()->setParentSoft(this->travelNode);
        //State::getCameraNode()->setParentSoft(this);
        State::getCameraNode()->setRelCoorSoft(-0.01, 40, 0);
        State::getCameraTargetNode()->setParentSoft(this->travelNode);
        //State::getCameraTargetNode()->setParentSoft(this);
        State::getCameraTargetNode()->setRelCoorSoft(0,0,0);

        this->debugNode(1);
        this->travelNode->debugNode(1);
      }
      break;

    default:
      PRINTF(2)("Playmode %s Not Implemented in %s\n", Playable::playmodeToString(this->getPlaymode()).c_str(), this->getClassCName());
  }
}

/**
 * @brief calculate the velocity
 * @param time the timeslice since the last frame
*/

void SpaceShip::movement (float dt)
{
  //by releasing the buttons, the velocity decreases with airCoeff*Acceleration. Should be strong enough so 
  //the ship doesn't slide too much. 
  float airCoeff = 2.5;
  float pi = 3.14;
 

  switch(this->getPlaymode())
  {
    case Playable::Horizontal:
    {
      // these routines will change the travel movement into zero in a short amout of time, if the player
      // doesn't press any buttons.
      if (this->travelVelocity.x >= 0)
      {
        if (this->travelVelocity.x > airCoeff*this->acceleration * dt)
          this->travelVelocity.x -= airCoeff* this->acceleration * dt;
        else
          this->travelVelocity.x = 0;
      }
      else
      {
        if (this->travelVelocity.x < -airCoeff*this->acceleration * dt)
          this->travelVelocity.x += airCoeff* this->acceleration * dt;
        else
          this->travelVelocity.x = 0;
      }
      if (this->travelVelocity.z >= 0)
      {
        if (this->travelVelocity.z > airCoeff*this->acceleration * dt)
          this->travelVelocity.z -= airCoeff* this->acceleration * dt;
        else
          this->travelVelocity.z = 0;
      }
      else
      {
        if (this->travelVelocity.z < -airCoeff*this->acceleration * dt)
          this->travelVelocity.z += airCoeff* this->acceleration * dt;
        else
          this->travelVelocity.z = 0;
      }
    
      // this will evite, that the ship moves outside the travelDistance- borders,when the player releases all buttons
      // and its continuing to slide a bit.
      Vector oldCoor = this->getRelCoor();
      if (this->getRelCoor().x > this->travelDistancePlus.x) this->setRelCoor(this->travelDistancePlus.x, oldCoor.y, oldCoor.z);
      if (this->getRelCoor().x < this->travelDistanceMinus.x) this->setRelCoor(this->travelDistanceMinus.x, oldCoor.y, oldCoor.z);
      if (this->getRelCoor().z > this->travelDistancePlus.y) this->setRelCoor(oldCoor.x, oldCoor.y, this->travelDistancePlus.y);
      if (this->getRelCoor().z < this->travelDistanceMinus.y) this->setRelCoor(oldCoor.x, oldCoor.y, this->travelDistanceMinus.y);
    
      if( this->systemFailure() )
        bForward = bBackward = bLeft = bRight = false;
    
      if( this->bForward )
      {
        if(this->getRelCoor().x < this->travelDistancePlus.x)
        {
          if (this->travelVelocity.x < this->travelSpeed)
          {
            this->travelVelocity.x += (airCoeff + 1.0)*this->acceleration*dt;
          }
          else
          {
            this->travelVelocity.x = this->travelSpeed;
          }
        }
        else
        {
          this->travelVelocity.x = 0.0f;
        }
      }
    
      if( this->bBackward )
      {
        if(this->getRelCoor().x > this->travelDistanceMinus.x)
        {
          if (this->travelVelocity.x > -this->travelSpeed)
          {
            this->travelVelocity.x -= (airCoeff + 1.0)*this->acceleration*dt;
          }
          else
          {
            this->travelVelocity.x = -this->travelSpeed;
          }
        }
        else
        {
          this->travelVelocity.x = 0.0f;
        }
      }
    
      if( this->bLeft)
      {
        if(this->getRelCoor().z > this->travelDistanceMinus.y)
        {
          if (this->travelVelocity.z > -this->travelSpeed)
          {
            this->travelVelocity.z -= (airCoeff + 1.0)*this->acceleration*dt;
          }
          else
          {
            this->travelVelocity.z = -this->travelSpeed;
          }
        }
        else
        {
          this->travelVelocity.z = 0.0f;
        }
        this->setRelDirSoft(Quaternion(-pi/6, Vector(1,0,0)), 6);
      }
    
      if( this->bRight)
      {
        if(this->getRelCoor().z < this->travelDistancePlus.y)
        {
          if (this->travelVelocity.z < this->travelSpeed)
          {
            this->travelVelocity.z += (airCoeff + 1.0)*this->acceleration*dt;
          }
          else
          {
            this->travelVelocity.z = this->travelSpeed;
          }
        }
        else
        {
          this->travelVelocity.z = 0.0f;
        }
        this->setRelDirSoft(Quaternion(pi/6, Vector(1,0,0)), 6);
      }
      if (!this->bRight && !this->bLeft)
      {
        this->setRelDirSoft(Quaternion(0, Vector(1,0,0)), 6);
      }
      

      this->travelNode->shiftCoor(Vector(this->cameraSpeed * dt, 0, 0));
      this->shiftCoor (this->travelVelocity * dt);

    //normalisation of the vectors (vector sum must be <= travelspeed)
    float xzNorm = sqrt(pow(this->travelVelocity.x, 2) + pow(this->travelVelocity.z, 2));
    if (xzNorm > this->travelSpeed)
    {
      this->travelVelocity.x = this->travelVelocity.x/xzNorm * this->travelSpeed;
      this->travelVelocity.z = this->travelVelocity.z/xzNorm * this->travelSpeed;
    }

    //this moves camera and ship along the travel path. 
    this->travelNode->shiftCoor(Vector(this->cameraSpeed * dt, 0, 0));
    
    //set new coordinates calculated through key- events. 
    this->shiftCoor (this->travelVelocity * dt);
    break;
    }
    case Playable::Vertical:
      break;
    default:
      PRINTF(4)("Playmode %s Not Implemented in %s\n", Playable::playmodeToString(this->getPlaymode()).c_str(), this->getClassCName());
  }
  

/*
  this->travelNode->shiftCoor(Vector(this->cameraSpeed * dt, 0, 0));
  this->shiftCoor (this->travelVelocity * dt);

  float angle = this->travelVelocity.z / travelSpeed * pi / 3;
  if (angle > pi/4) angle = pi/4;
  if (angle < -pi/4) angle = -pi/4;
  this->setRelDirSoft(Quaternion(angle, Vector(1,0,0)), 5.0f);
*/
  
}

void SpaceShip::setPlaymodeXML(const std::string& playmode)
{
  this->setPlaymode(Playable::stringToPlaymode(playmode));
}