private FrameBlend ConvertTimeToFrame(int time, int cycleCount)
{
FrameBlend frame = new FrameBlend();
int frameCount = this.FrameCount;
if (frameCount <= 1)
{
frame.Frame1 = 0;
frame.Frame2 = 0;
frame.BackLerp = 0.0f;
frame.FrontLerp = 1.0f;
frame.CycleCount = 0;
}
else if (time <= 0)
{
frame.Frame1 = 0;
frame.Frame2 = 1;
frame.BackLerp = 0.0f;
frame.FrontLerp = 1.0f;
frame.CycleCount = 0;
}
else
{
int frameTime = time * _frameRate;
int frameNumber = frameTime / 1000;
frame.CycleCount = frameNumber / (frameCount - 1);
if ((cycleCount > 0) && (frame.CycleCount >= cycleCount))
{
frame.CycleCount = cycleCount - 1;
frame.Frame1 = frameCount - 1;
frame.Frame2 = frame.Frame1;
frame.BackLerp = 0.0f;
frame.FrontLerp = 1.0f;
}
else
{
frame.Frame1 = frameNumber % (frameCount - 1);
frame.Frame2 = frame.Frame1 + 1;
if (frame.Frame2 >= frameCount)
{
frame.Frame2 = 0;
}
frame.BackLerp = (frameTime % 1000) * 0.001f;
frame.FrontLerp = 1.0f - frame.BackLerp;
}
}
return(frame);
}
public Vector3 GetOrigin(int time, int cycleCount)
{
Vector3 offset = _baseFrame[0].Translation;
if ((_jointInfo[0].AnimationBits & (AnimationBits.TranslationX | AnimationBits.TranslationY | AnimationBits.TranslationZ)) == 0)
{
// just use the baseframe
return(Vector3.Zero);
}
FrameBlend frame = ConvertTimeToFrame(time, cycleCount);
int componentOffset1 = _animatedComponentCount * frame.Frame1 + _jointInfo[0].FirstComponent;
int componentOffset2 = _animatedComponentCount * frame.Frame2 + _jointInfo[0].FirstComponent;
if ((_jointInfo[0].AnimationBits & AnimationBits.TranslationX) == AnimationBits.TranslationX)
{
offset.X = _componentFrames[componentOffset1] * frame.FrontLerp + _componentFrames[componentOffset2] * frame.BackLerp;
componentOffset1++;
componentOffset2++;
}
if ((_jointInfo[0].AnimationBits & AnimationBits.TranslationY) == AnimationBits.TranslationY)
{
offset.Y = _componentFrames[componentOffset1] * frame.FrontLerp + _componentFrames[componentOffset2] * frame.BackLerp;
componentOffset1++;
componentOffset2++;
}
if ((_jointInfo[0].AnimationBits & AnimationBits.TranslationZ) == AnimationBits.TranslationZ)
{
offset.Z = _componentFrames[componentOffset1] * frame.FrontLerp + _componentFrames[componentOffset2] * frame.BackLerp;
}
if (frame.CycleCount > 0)
{
offset += _totalDelta * (float)frame.CycleCount;
}
return(offset);
}
public idBounds GetBounds(int time, int cycleCount)
{
FrameBlend frame = ConvertTimeToFrame(time, cycleCount);
idBounds bounds = _bounds[frame.Frame1];
bounds.AddBounds(_bounds[frame.Frame2]);
// origin position
Vector3 offset = _baseFrame[0].Translation;
if ((_jointInfo[0].AnimationBits & (AnimationBits.TranslationX | AnimationBits.TranslationY | AnimationBits.TranslationZ)) != 0)
{
int componentOffset1 = _animatedComponentCount * frame.Frame1 + _jointInfo[0].FirstComponent;
int componentOffset2 = _animatedComponentCount * frame.Frame2 + _jointInfo[0].FirstComponent;
if ((_jointInfo[0].AnimationBits & AnimationBits.TranslationX) == AnimationBits.TranslationX)
{
offset.X = _componentFrames[componentOffset1] * frame.FrontLerp + _componentFrames[componentOffset2] * frame.BackLerp;
componentOffset1++;
componentOffset2++;
}
if ((_jointInfo[0].AnimationBits & AnimationBits.TranslationY) == AnimationBits.TranslationY)
{
offset.Y = _componentFrames[componentOffset1] * frame.FrontLerp + _componentFrames[componentOffset2] * frame.BackLerp;
componentOffset1++;
componentOffset2++;
}
if ((_jointInfo[0].AnimationBits & AnimationBits.TranslationZ) == AnimationBits.TranslationZ)
{
offset.Z = _componentFrames[componentOffset1] * frame.FrontLerp + _componentFrames[componentOffset2] * frame.BackLerp;
}
}
bounds.Min -= offset;
bounds.Max -= offset;
return(bounds);
}
private FrameBlend ConvertTimeToFrame(int time, int cycleCount)
{
FrameBlend frame = new FrameBlend();
int frameCount = this.FrameCount;
if(frameCount <= 1)
{
frame.Frame1 = 0;
frame.Frame2 = 0;
frame.BackLerp = 0.0f;
frame.FrontLerp = 1.0f;
frame.CycleCount = 0;
}
else if(time <= 0)
{
frame.Frame1 = 0;
frame.Frame2 = 1;
frame.BackLerp = 0.0f;
frame.FrontLerp = 1.0f;
frame.CycleCount = 0;
}
else
{
int frameTime = time * _frameRate;
int frameNumber = frameTime / 1000;
frame.CycleCount = frameNumber / (frameCount - 1);
if((cycleCount > 0) && (frame.CycleCount >= cycleCount))
{
frame.CycleCount = cycleCount - 1;
frame.Frame1 = frameCount - 1;
frame.Frame2 = frame.Frame1;
frame.BackLerp = 0.0f;
frame.FrontLerp = 1.0f;
}
else
{
frame.Frame1 = frameNumber % (frameCount - 1);
frame.Frame2 = frame.Frame1 + 1;
if(frame.Frame2 >= frameCount)
{
frame.Frame2 = 0;
}
frame.BackLerp = (frameTime % 1000) * 0.001f;
frame.FrontLerp = 1.0f - frame.BackLerp;
}
}
return frame;
}
