urho3d/Engine/Renderer/Bone.cpp

//
// Urho3D Engine
// Copyright (c) 2008-2011 Lasse Öörni
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//

#include "Precompiled.h"
#include "Bone.h"

#include "DebugNew.h"

Bone::Bone(Bone* rootBone, const std::string& name) :
    Node(NODE_BONE, name),
    mRootBone(rootBone),
    mInitialPosition(Vector3::sZero),
    mInitialRotation(Quaternion::sIdentity),
    mInitialScale(Vector3::sUnity),
    mOffsetMatrix(Matrix4x3::sIdentity),
    mCollisionMask(BONECOLLISION_NONE),
    mRadius(0.0f),
    mAnimationEnabled(true),
    mSkinningDirty(true)
{
    if (!mRootBone)
        mRootBone = this;
}

Bone::~Bone()
{
}

void Bone::setRootBone(Bone* rootBone)
{
    if (rootBone == 0)
        rootBone = this;
    
    if (rootBone != mRootBone)
    {
        mRootBone = rootBone;
        markDirty();
    }
}

void Bone::setInitialTransform(const Vector3& position, const Quaternion& rotation, const Vector3& scale)
{
    mInitialPosition = position;
    mInitialRotation = rotation;
    mInitialScale = scale;
}

void Bone::setOffsetMatrix(const Matrix4x3& offset)
{
    mOffsetMatrix = offset;
}

void Bone::setRadius(float radius)
{
    mRadius = radius;
    mCollisionMask |= BONECOLLISION_SPHERE;
}

void Bone::setBoundingBox(const BoundingBox& box)
{
    mBoundingBox = box;
    mCollisionMask |= BONECOLLISION_BOX;
}

void Bone::setAnimationEnabled(bool enable)
{
    mAnimationEnabled = enable;
}

void Bone::reset(bool force)
{
    if ((force) || (mAnimationEnabled))
        setTransform(mInitialPosition, mInitialRotation, mInitialScale);
}

void Bone::onMarkedDirty()
{
    mSkinningDirty = true;
    // Dirty also the skinning flag of root bone for faster checking of whether any bones have changed in the skeleton
    mRootBone->mSkinningDirty = true;
}