/// <summary>
/// Gets a collection of animations stored in the model.
/// </summary>
/// <param name="model">The model that contains the animations.</param>
/// <returns>The animations stored in the model.</returns>
public static AnimationInfoCollection FromModel(Model model)
{
// Grab the tag that was set in the processor; this is a dictionary so that users can extend
// the processor and pass their own data into the program without messing up the animation data
Dictionary <string, object> modelTagData = (Dictionary <string, object>)model.Tag;
if (modelTagData == null || !modelTagData.ContainsKey("Animations"))
{
return(new AnimationInfoCollection());
}
else
{
AnimationInfoCollection animations = (AnimationInfoCollection)modelTagData["Animations"];
return(animations);
}
}
/// <summary>
/// Creates a new instance of ModelAnimator.
/// </summary>
/// <param name="game">The game to which this component will belong.</param>
/// <param name="model">The model to be animated.</param>
public ModelAnimator(Game game, Model model)
: base(game)
{
this.model = model;
animations = AnimationInfoCollection.FromModel(model);
bonePoses = BonePoseCollection.FromModelBoneCollection(
model.Bones);
numMeshes = model.Meshes.Count;
// Find total number of effects used by the model
numEffects = 0;
foreach (ModelMesh mesh in model.Meshes)
{
foreach (Effect effect in mesh.Effects)
{
numEffects++;
}
}
// Initialize the arrays that store effect parameters
modelEffects = new Effect[numEffects];
worldParams = new EffectParameter[numEffects];
matrixPaletteParams = new EffectParameter[numEffects];
InitializeEffectParams();
pose = new Matrix[model.Bones.Count];
model.CopyAbsoluteBoneTransformsTo(pose);
// Get all the skinning info for the model
Dictionary <string, object> modelTagInfo = (Dictionary <string, object>)model.Tag;
if (modelTagInfo == null)
{
throw new Exception("Model Processor must subclass AnimatedModelProcessor.");
}
skinInfo = (SkinInfoCollection[])modelTagInfo["SkinInfo"];
if (skinInfo == null)
{
throw new Exception("Model processor must pass skinning info through the tag.");
}
palette = new Matrix[model.Meshes.Count][];
for (int i = 0; i < skinInfo.Length; i++)
{
if (Util.IsSkinned(model.Meshes[i]))
{
palette[i] = new Matrix[skinInfo[i].Count];
}
else
{
palette[i] = null;
}
}
// Update after AnimationController by default
base.UpdateOrder = 1;
game.Components.Add(this);
// Test to see if model has too many bones
for (int i = 0; i < model.Meshes.Count; i++)
{
if (palette[i] != null && matrixPaletteParams[i] != null)
{
Matrix[] meshPalette = palette[i];
try
{
matrixPaletteParams[i].SetValue(meshPalette);
}
catch
{
throw new Exception("Model has too many skinned bones for the matrix palette.");
}
}
}
}