source: orxonox.OLD/trunk/src/world_entities/spectator.cc @ 10683

/*
   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: Christoph Renner
   co-programmer: ...

*/

#include "spectator.h"

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

#include "shared_network_data.h"

#include "src/world_entities/creatures/fps_player.h"
#include "src/world_entities/npcs/generic_npc.h"

#include "src/lib/util/loading/load_param.h"

#include "player.h"


ObjectListDefinition(Spectator);
CREATE_FACTORY(Spectator);

Spectator* Spectator::ghost = NULL;
Playable* Spectator::regularPlayable = NULL;

#include "state.h"
#include "shell_command.h"
             
SHELL_COMMAND( enableGhost, Spectator, enableGhost )
             ->describe("fly around")
             ->setAlias("ghost");


/**
 *  destructs the Spectator, deletes alocated memory
 */
Spectator::~Spectator ()
{
  this->setPlayer(NULL);
  if ( this == ghost )
    ghost = NULL; 
}


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

   @todo add more parameters to load
 */
Spectator::Spectator(const TiXmlElement* root)
{
  this->init();
  if (root != NULL)
    this->loadParams(root);

}


/**
 * initializes a Spectator
 */
void Spectator::init()
{
//  this->setRelDir(Quaternion(M_PI, Vector(1,0,0)));
  this->registerObject(this, Spectator::_objectList);

  this->getWeaponManager().changeWeaponConfig(1);

  this->bLeft = false;
  this->bRight = false;
  this->bForward = false;
  this->bBackward = false;
  this->xMouse = 0.0f;
  this->yMouse = 0.0f;

  this->setHealthMax(100);
  this->setHealth(80);

  this->mouseDir = this->getAbsDir();

  //add events to the eventlist
  registerEvent(KeyMapper::PEV_FORWARD);
  registerEvent(KeyMapper::PEV_BACKWARD);
  registerEvent(KeyMapper::PEV_LEFT);
  registerEvent(KeyMapper::PEV_RIGHT);
  registerEvent(KeyMapper::PEV_FIRE1);
  registerEvent(KeyMapper::PEV_JUMP);
  registerEvent(EV_MOUSE_MOTION);

  this->getWeaponManager().setSlotCount(0);

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

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


  registerVar( new SynchronizeableBool( &bLeft, &bLeft, "bLeft", PERMISSION_OWNER ) );
  registerVar( new SynchronizeableBool( &bRight, &bRight, "bRight", PERMISSION_OWNER ) );
  registerVar( new SynchronizeableBool( &bForward, &bForward, "bForward", PERMISSION_OWNER ) );
  registerVar( new SynchronizeableBool( &bBackward, &bBackward, "bBackward", PERMISSION_OWNER ) );
  registerVar( new SynchronizeableQuaternion( &mouseDir, &mouseDir, "mouseDir", PERMISSION_OWNER ) );

  this->setPlayDirection(Quaternion(0,Vector(0,1,0)), 0.);
}


/**
 * loads the Settings of a Spectator from an XML-element.
 * @param root the XML-element to load the Spectator's properties from
 */
void Spectator::loadParams(const TiXmlElement* root)
{
  Playable::loadParams(root);
  
  LoadParam(root, "allowGhost", this, Spectator, allowGhost)
    .describe("Allows the Player to fly around");
}



void Spectator::allowGhost( bool flag )
{
  PRINTF(0)( "SPECTATOR ALLOWGHOST: %d\n", flag );
  if ( flag )
  {
    assert( ghost == NULL && "only one flySpectator allowed" );
    
    ghost = this;
  }
  else
  {
    ghost = NULL;
  }
}


void Spectator::enableGhost( )
{
  if ( !ghost )
  {
    Spectator* spec = new Spectator();
    spec->allowGhost( true );
  }
  
  if ( !regularPlayable )
  {
    if ( !State::getPlayer() || !State::getPlayer()->getPlayable() )
      return;
    
    regularPlayable = State::getPlayer()->getPlayable();
    
    ghost->setAbsCoor( regularPlayable->getAbsCoor() );
    ghost->setAbsDir( regularPlayable->getAbsDir() );
    
    State::getPlayer()->setPlayable( ghost );
  }
  else
  {
    if ( !State::getPlayer() || !State::getPlayer()->getPlayable() )
      return;
    
    State::getPlayer()->setPlayable( regularPlayable );
    regularPlayable = NULL;
  }
}

void Spectator::setPlayDirection(const Quaternion& quat, float speed)
{
  this->mouseDir = quat;
  this->angleY = quat.getHeading();
  this->angleX = quat.getAttitude();
}


void Spectator::reset()
{
  this->bLeft = false;
  this->bRight = false;
  this->bForward = false;
  this->bBackward = false;
  this->xMouse = 0.0f;
  this->yMouse = 0.0f;

  this->setHealth(80);
}


void Spectator::enter()
{
  dynamic_cast<Element2D*>(this->getWeaponManager().getFixedTarget())->setVisibility( false );
  this->attachCamera();
}

void Spectator::leave()
{
  dynamic_cast<Element2D*>(this->getWeaponManager().getFixedTarget())->setVisibility( false);
  this->detachCamera();
}


/**
 *  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
 * @todo dont let Spectator fly through walls
 */
void Spectator::collidesWith(WorldEntity* entity, const Vector& location)
{
}



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

  if( ( xMouse != 0 || yMouse != 0 ) && ( !State::isOnline() || this->getOwner() == SharedNetworkData::getInstance()->getHostID() ) )
  {
    xMouse *= time / 10;
    yMouse *= time / 10;

    angleX -= xMouse;
    angleY -= yMouse;

//     if ( angleY > 1.90 )
//       angleY = 1.95;
// 
//     if ( angleY < -1.07 )
//       angleY = -1.07;
    
    xMouse = yMouse = 0;

    this->mouseDir = Quaternion( angleX, Vector( 0, 1, 0 ) ) * Quaternion( angleY, Vector( 0, 0, 1 ) );

    
    
  }

  this->setAbsDir( this->mouseDir );

  Vector velocity;

  if ( this->bForward )
  {
    velocity += this->getAbsDirX();
  }

  if ( this->bBackward )
  {
    velocity -= this->getAbsDirX();
  }

  if ( this->bRight )
  {
    velocity += this->getAbsDirZ();
  }

  if ( this->bLeft )
  {
    velocity -= this->getAbsDirZ();
  }

  velocity *= 100;

  this->shiftCoor( velocity*time );
}

/**
 * @todo switch statement ??
 */
void Spectator::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 == EV_MOUSE_MOTION)
  {
    this->xMouse += event.xRel;
    this->yMouse += event.yRel;
  }
  else if( event.type == KeyMapper::PEV_FIRE1 )
  {
    PRINTF(0)( "CURRENT POS: (%f, %f, %f) ROT (%f, (%f, %f, %f))\n", this->getAbsCoorX(), this->getAbsCoorY(), this->getAbsCoorZ(), this->getAbsDir().w, this->getAbsDir().v.x, this->getAbsDir().v.y, this->getAbsDir().v.z );
//     FPSPlayer * fps = new FPSPlayer();
//     //GenericNPC* fps = new GenericNPC();
//     WorldEntity* fps = new WorldEntity();
//     //WorldEntity * fps = new WorldEntity();
// 
//     fps->setAbsCoor( this->getAbsCoorX(), this->getAbsCoorY(), this->getAbsCoorZ() );
//     fps->setAbsDir( this->getAbsDir() );
//     fps->loadMD2Texture( "doom_guy.png" );
//     fps->loadModel( "models/creatures/doom_guy.md2", 10.0f );
//     fps->toList( OM_GROUP_00);
//     //fps->loadModel( "models/ships/terran_cruizer.obj" );

//     ((Playable*)fps)->setPlayDirection(  0, 0, 1, 0 );
  }
}