Method updateComposition

engine/source/2d/sceneobject/SkeletonObject.cc:383–466

//-----------------------------------------------------------------------------

void SkeletonObject::updateComposition( const F32 time )
{
    // Update position/orientation/state of visualization
    float delta = (time - mLastFrameTime) * mTimeScale;
    mLastFrameTime = time;
    
    spSkeleton_update(mSkeleton, delta);
    
    if (!mAnimationFinished)
    {
        spAnimationState_update(mState, delta);
        spAnimationState_apply(mState, mSkeleton);
    }
    
    spSkeleton_updateWorldTransform(mSkeleton);
    
    // Get the ImageAsset used by the sprites
    StringTableEntry assetId = (*mSkeletonAsset).mImageAsset.getAssetId();
    
    clearSprites();
    
    Vector2 vertices[4];
    
    F32 vertexPositions[8];
    for (int i = 0; i < mSkeleton->slotCount; ++i)
    {
        spSlot* slot = mSkeleton->slots[i];
        spAttachment* attachment = slot->attachment;
        
        if (!attachment || attachment->type != ATTACHMENT_REGION)
            continue;
        
        spRegionAttachment* regionAttachment = (spRegionAttachment*)attachment;
        spRegionAttachment_computeWorldVertices(regionAttachment, slot->skeleton->x, slot->skeleton->y, slot->bone, vertexPositions);
        
        SpriteBatchItem* pSprite = SpriteBatch::createSprite();

        pSprite->setDepth(mSceneLayerDepth);
        
        pSprite->setSrcBlendFactor(mSrcBlendFactor);
        pSprite->setDstBlendFactor(mDstBlendFactor);
        
        mSkeleton->r = mBlendColor.red;
        mSkeleton->g = mBlendColor.green;
        mSkeleton->b = mBlendColor.blue;
        mSkeleton->a = mBlendColor.alpha;
        
        F32 alpha = mSkeleton->a * slot->a;
        pSprite->setBlendColor(ColorF(
            mSkeleton->r * slot->r * alpha,
            mSkeleton->g * slot->g * alpha,
            mSkeleton->b * slot->b * alpha,
            alpha
        ));
        
        mSkeleton->flipX = getFlipX();
        mSkeleton->flipY = getFlipY();