/// <summary>
/// Function to update the 2D texture values for the object that the animation is being applied to.
/// </summary>
/// <param name="animationLength">The length, in seconds, of the animation.</param>
/// <param name="track">The track to evaluate.</param>
/// <param name="time">The current time for the animation.</param>
/// <param name="texture">The texture to switch to.</param>
/// <param name="texCoordinates">The texture coordinates to use.</param>
/// <param name="textureArrayIndex">The current texture array index to use.</param>
/// <returns><b>true</b> if there's a value to update, <b>false</b> if not.</returns>
public static bool TryUpdateTexture2D(float animationLength, float time, IGorgonTrack <GorgonKeyTexture2D> track, out GorgonTexture2DView texture, out DX.RectangleF texCoordinates, out int textureArrayIndex)
{
switch (track.KeyFrames.Count)
{
case 0:
texture = null;
texCoordinates = DX.RectangleF.Empty;
textureArrayIndex = 0;
return(false);
case 1:
GorgonKeyTexture2D texKey = track.KeyFrames[0];
texture = texKey.Value;
texCoordinates = texKey.TextureCoordinates;
textureArrayIndex = texKey.TextureArrayIndex;
return(true);
}
(GorgonKeyTexture2D prev, GorgonKeyTexture2D next, _, _) = TweenKey.GetNearestKeys(track, time, animationLength);
GorgonKeyTexture2D correctKey = time.EqualsEpsilon(next.Time) ? next : prev;
texture = correctKey.Value;
texCoordinates = correctKey.TextureCoordinates;
textureArrayIndex = correctKey.TextureArrayIndex;
return(true);
}
/// <summary>
/// Function to update the color of the object that the animation is being applied to.
/// </summary>
/// <param name="animationLength">The length, in seconds, of the animation.</param>
/// <param name="track">The track to evaluate.</param>
/// <param name="time">The current time for the animation.</param>
/// <param name="result">The result value to apply to the object color.</param>
/// <returns><b>true</b> if there's a value to update, <b>false</b> if not.</returns>
public static bool TryUpdateColor(float animationLength, IGorgonTrack <GorgonKeyGorgonColor> track, float time, out GorgonColor result)
{
switch (track.KeyFrames.Count)
{
case 0:
result = GorgonColor.BlackTransparent;
return(false);
case 1:
result = track.KeyFrames[0].Value;
return(true);
}
(GorgonKeyGorgonColor prev, GorgonKeyGorgonColor next, int prevKeyIndex, float deltaTime) = TweenKey.GetNearestKeys(track, time, animationLength);
switch (track.InterpolationMode)
{
case TrackInterpolationMode.Linear:
GorgonColor.Lerp(in prev.Value, in next.Value, deltaTime, out result);
break;
case TrackInterpolationMode.Spline:
result = track.SplineController.GetInterpolatedValue(prevKeyIndex, deltaTime);
break;
default:
result = next.Value;
break;
}
return(true);
}
/// <summary>
/// Function to update the vector3 property of the object that the animation is being applied to.
/// </summary>
/// <param name="animationLength">The length, in seconds, of the animation.</param>
/// <param name="track">The track to evaluate.</param>
/// <param name="time">The current time for the animation.</param>
/// <param name="result">The result value to apply to the vector3 object property.</param>
/// <returns><b>true</b> if there's a value to update, <b>false</b> if not.</returns>
public static bool TryUpdateVector3(float animationLength, IGorgonTrack <GorgonKeyVector3> track, float time, out DX.Vector3 result)
{
switch (track.KeyFrames.Count)
{
case 0:
result = DX.Vector3.Zero;
return(false);
case 1:
result = track.KeyFrames[0].Value;
return(true);
}
(GorgonKeyVector3 prev, GorgonKeyVector3 next, int prevKeyIndex, float deltaTime) = TweenKey.GetNearestKeys(track, time, animationLength);
switch (track.InterpolationMode)
{
case TrackInterpolationMode.Linear:
DX.Vector3.Lerp(ref prev.Value, ref next.Value, deltaTime, out result);
break;
case TrackInterpolationMode.Spline:
result = (DX.Vector3)track.SplineController.GetInterpolatedValue(prevKeyIndex, deltaTime);
break;
default:
result = next.Value;
break;
}
return(true);
}
/// <summary>
/// Function to update the rectangle boundaries of the object that the animation is being applied to.
/// </summary>
/// <param name="animationLength">The length, in seconds, of the animation.</param>
/// <param name="track">The track to evaluate.</param>
/// <param name="time">The current time for the animation.</param>
/// <param name="result">The result value to apply to the object bounds.</param>
/// <returns><b>true</b> if there's a value to update, <b>false</b> if not.</returns>
public static bool TryUpdateRectBounds(float animationLength, IGorgonTrack <GorgonKeyRectangle> track, float time, out DX.RectangleF result)
{
switch (track.KeyFrames.Count)
{
case 0:
result = DX.RectangleF.Empty;
return(false);
case 1:
result = track.KeyFrames[0].Value;
return(true);
}
(GorgonKeyRectangle prev, GorgonKeyRectangle next, int prevKeyIndex, float deltaTime) = TweenKey.GetNearestKeys(track, time, animationLength);
switch (track.InterpolationMode)
{
case TrackInterpolationMode.Linear:
result = new DX.RectangleF(prev.Value.X + ((next.Value.X - prev.Value.X) * deltaTime),
prev.Value.Y + ((next.Value.Y - prev.Value.Y) * deltaTime),
prev.Value.Width + ((next.Value.Width - prev.Value.Width) * deltaTime),
prev.Value.Height + ((next.Value.Height - prev.Value.Height) * deltaTime));
break;
case TrackInterpolationMode.Spline:
DX.Vector4 splineResult = track.SplineController.GetInterpolatedValue(prevKeyIndex, deltaTime);
result = new DX.RectangleF(splineResult.X, splineResult.Y, splineResult.Z, splineResult.W);
break;
default:
result = next.Value;
break;
}
return(true);
}