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panda/src/char/config_char.cxx

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// Filename: config_char.cxx
// Created by:  drose (28Feb00)
//
////////////////////////////////////////////////////////////////////
//
// PANDA 3D SOFTWARE
// Copyright (c) 2001, Disney Enterprises, Inc.  All rights reserved
//
// All use of this software is subject to the terms of the Panda 3d
// Software license.  You should have received a copy of this license
// along with this source code; you will also find a current copy of
// the license at http://www.panda3d.org/license.txt .
//
// To contact the maintainers of this program write to
// panda3d@yahoogroups.com .
//
////////////////////////////////////////////////////////////////////


#include "config_char.h"
#include "character.h"
#include "characterJoint.h"
#include "characterJointBundle.h"
#include "characterSlider.h"
#include "computedVertices.h"
#include "dynamicVertices.h"
#include <dconfig.h>
#include <lmatrix4.h>

Configure(config_char);
NotifyCategoryDef(char, "");

ConfigureFn(config_char) {
  init_libchar();
}

// The animation system, by default, only recomputes the characters'
// vertices on frames for which there is some change in the animation
// cycle.  Since this doesn't happen every frame, and since the
// recomputing of vertices can take significant time, this might
// result in irregular patterns of slow frames and fast frames,
// resulting in an unsteady frame rate.  Sometimes it is preferable to
// achieve a more even frame rate, even if the average frame rate is
// slower overall.

// Set even-animation to true to achieve this.  When this is true,
// characters' vertices will be recomputed every frame, whether they
// need it or not.  This will tend to balance out the frame rate so
// that it is more uniformly slow.
const bool even_animation = config_char.GetBool("even-animation", false);


////////////////////////////////////////////////////////////////////
//     Function: init_libchar
//  Description: Initializes the library.  This must be called at
//               least once before any of the functions or classes in
//               this library can be used.  Normally it will be
//               called by the static initializers and need not be
//               called explicitly, but special cases exist.
////////////////////////////////////////////////////////////////////
void
init_libchar() {
  static bool initialized = false;
  if (initialized) {
    return;
  }
  initialized = true;

  Character::init_type();
  CharacterJoint::init_type();
  CharacterJointBundle::init_type();
  CharacterSlider::init_type();
  ComputedVertices::init_type();
  DynamicVertices::init_type();

  // This isn't defined in this package, but it *is* essential that it
  // be initialized.  We have to do it explicitly here since template
  // statics don't necessarily resolve very well across dynamic
  // libraries.
  LMatrix4f::init_type();

  //Registration of writeable object's creation
  //functions with BamReader's factory
  Character::register_with_read_factory();
  CharacterJoint::register_with_read_factory();
  CharacterJointBundle::register_with_read_factory();
  CharacterSlider::register_with_read_factory();
  ComputedVertices::register_with_read_factory();
}

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