GameCommon.MeshObjectAnimationController.DoRenderFrame C# (CSharp) Метод

        public void DoRenderFrame()
        {
            float delta = RendererWorld.Instance.FrameRenderTimeStep;

            for( int n = 0; n < activeItems.Count; n++ )
            {
                AnimationItem item = activeItems[ n ];

                MeshObject.AnimationState animationState = item.animationState;

                //time progress
                animationState.AddTime( item.Velocity * delta );

                //has ended?
                if( !item.Loop )
                {
                    if( animationState.TimePosition + blendingTime * 2 + .001f >=
                        item.animationState.Length )
                    {
                        Remove( item );
                        n--;
                        continue;
                    }
                }

                //change random animation
                if( item.Loop && item.AllowRandomAnimationNumber )
                {
                    //detect rewind
                    if( animationState.TimePosition < item.lastTimePosition )
                    {
                        string animationName = item.AnimationBaseName;
                        int number = GetRandomAnimationNumber( animationName, true );
                        if( number != 1 )
                            animationName += number.ToString();

                        MeshObject.AnimationState newAnimationState =
                            meshObject.GetAnimationState( animationName );
                        if( newAnimationState == null )
                        {
                            Log.Fatal( "MeshObjectAnimationController: DoRenderFrame: " +
                                "newAnimationState == null." );
                        }

                        animationState.Enable = false;

                        newAnimationState.Loop = animationState.Loop;
                        newAnimationState.TimePosition = animationState.TimePosition;
                        newAnimationState.Weight = animationState.Weight;
                        newAnimationState.Enable = true;

                        item.animationState = newAnimationState;
                    }
                }

                //update weight for blending
                if( blendingTime != 0 )
                {
                    item.blendingWeightCoefficient += delta / blendingTime;
                    if( item.blendingWeightCoefficient > 1 )
                        item.blendingWeightCoefficient = 1;
                }

                item.lastTimePosition = animationState.TimePosition;
            }

            for( int n = 0; n < removedItemsForBlending.Count; n++ )
            {
                AnimationItem item = removedItemsForBlending[ n ];

                item.blendingWeightCoefficient -= delta / blendingTime;
                if( item.blendingWeightCoefficient <= 0 )
                {
                    item.animationState.Enable = false;
                    removedItemsForBlending.RemoveAt( n );
                    n--;
                    continue;
                }
            }

            UpdateAnimationStatesWeights();
        }