source: orxonox.OLD/trunk/src/world_entities/spawning_point.cc @ 8977

/*
   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: Patrick Boenzli
   co-programmer:
*/

#include "spawning_point.h"

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

#include "world_entity.h"

#include "compiler.h"

#include "state.h"
#include "game_rules.h"


/**
 *  constructor
 */
SpawningPoint::SpawningPoint (ClassID classid, const Vector& position)
{
  this->setAbsCoor(position);
  this->classid = classid;
  this->mode = SPT_ALL_AT_ONCE;
  this->delay = 0;

  this->init();
}


/**
 *  standard constructor
 */
SpawningPoint::SpawningPoint (const Vector& position, ClassID classid, SpawningPointMode mode, float delay)
{
  this->setAbsCoor(position);
  this->classid = classid;
  this->mode = mode;
  this->delay = delay;

  this->init();
}



void SpawningPoint::init()
{
  this->setClassID(CL_SPAWNING_POINT, "SpawningPoint");
  
  this->teamId = -1;
}


/**
 *  deconstructor
 */
SpawningPoint::~SpawningPoint ()
{}


/**
 * loads the WorldEntity Specific Parameters.
 * @param root: the XML-Element to load the Data From
 */
void SpawningPoint::loadParams(const TiXmlElement* root)
{
  /* let the world entity its stuff first */
  WorldEntity::loadParams(root);

  /* now load the frequency */
  LoadParam(root, "delay", this, SpawningPoint, setSpawningDelay)
      .describe("sets the delay of the spawning point");
      
  /* load teamId */
  LoadParam(root, "teamId", this, SpawningPoint, setTeamId)
      .describe("sets teamId");


  /* now load the seed */
//   LoadParam(root, "entity", this, SpawningPoint, setSpawningEntity)
//       .describe("sets the spawning entity");

  /* now load the seed */
/*  LoadParam(root, "classid", this, SpawningPoint, setSpawningEntity)
      .describe("sets the class id of the entity to spawn")
      .defaultValues(CL_WORLD_ENTITY);*/
}



/**
 * pushes a world entity to the spawning queue
 *  @param entity WorldEntity to be added
 */
void SpawningPoint::pushEntity(WorldEntity* entity, float delay)
{
  QueueEntry qe;
  qe.entity = entity;
  qe.list = entity->getOMListNumber();
  qe.respawnTime = this->localTimer + delay;
  
  queue.push_back( qe );
}


/**
 *  spawn the entity
 */
void SpawningPoint::spawn(WorldEntity* entity)
{
  PRINTF(1)("Spawningpoint spawns new Entity (%s)\n", entity->getClassName());


  entity->setAbsCoor( this->getAbsCoor() );
  entity->setAbsDir( this->getAbsDir() );
  
  //TODO set camera (not smooth)
}


/**
 *  this method is called every frame
 * @param time: the time in seconds that has passed since the last tick
 *
 * Handle all stuff that should update with time inside this method (movement, animation, etc.)
 */
void SpawningPoint::tick(float dt)
{
  this->localTimer += dt;

  std::list<QueueEntry>::iterator it = this->queue.begin();
  for( ; it != this->queue.end(); )
  {
    
    if( it->respawnTime <= this->localTimer)
    {
      //spawn the player
      this->spawn(it->entity);
      
      it->entity->toList( it->list );
      
      if ( State::getGameRules() )
      {
        (State::getGameRules())->registerSpawn( it->entity );
      }
      
      std::list<QueueEntry>::iterator delit = it;
      it++;
      
      queue.erase( delit );
      
      continue;
    }
    
    it++;
  }

}


/**
 *  the entity is drawn onto the screen with this function
 *
 * This is a central function of an entity: call it to let the entity painted to the screen.
 * Just override this function with whatever you want to be drawn.
 */
void SpawningPoint::draw()
{}