/// <summary>
/// This function processes the animation content of the model, and stores the data in the Matrix[] List
/// </summary>
/// <param name="animations"></param>
/// <param name="bones"></param>
/// <param name="outKeyFrames"></param>
/// <returns></returns>
private Dictionary <string, InstancedAnimationClip> ProcessAnimations(
AnimationContentDictionary animations,
IList <BoneContent> bones,
List <Matrix[]> outKeyFrames)
{
// Create a map of bones - just like in the SkinnedModel Smaple
Dictionary <string, int> boneMap = new Dictionary <string, int>();
for (int i = 0; i < bones.Count; i++)
{
string boneName = bones[i].Name;
if (!string.IsNullOrEmpty(boneName))
{
boneMap.Add(boneName, i);
}
}
// This is a dictionary of all the animations in the model
Dictionary <string, InstancedAnimationClip> animationDictionary = new Dictionary <string, InstancedAnimationClip>();
// Loop through each animation, and add that stuff to our animation texture, as well as to our dictionary we are going to output
foreach (KeyValuePair <string, AnimationContent> data in animations)
{
string animationName = data.Key;
AnimationContent animation = data.Value;
InstancedAnimationClip clip = ProcessAnimation(animation, outKeyFrames, boneMap);
animationDictionary.Add(animationName, clip);
}
return(animationDictionary);
}
/// <summary>
/// Update the animation and behavior of this dwarf
/// </summary>
/// <param name="gameTime"></param>
/// <param name="playerPosition"></param>
public void Update(GameTime gameTime, ref Vector3 playerPosition)
{
//If we don't have an animation, we should probably pick a new one out
if (this.currentAnimation == null)
{
this.currentAnimation = this.GetNextAnimation(ref playerPosition);
this.animationFrame = this.currentAnimation.StartRow;
}
//Otherwise, increment the animation frame on our current animation
if (this.currentAnimation != null)
{
this.animationFrame += (float)(gameTime.ElapsedGameTime.TotalSeconds * this.currentAnimation.FrameRate);
if ((int)this.animationFrame >= this.currentAnimation.EndRow)
{
//If we still need to repeat some, repeat
if (this.repeatAnimation > 0)
{
this.repeatAnimation--;
this.animationFrame = this.currentAnimation.StartRow;
}
else
{
this.animationFrame = this.currentAnimation.EndRow;
//Time to switch animation
this.currentAnimation = null;
}
}
}
//Rotate the dwarf to face the player
float zDelta = playerPosition.Z - this.translation.Z;
float xDelta = playerPosition.X - this.translation.X;
float rotation = (float)(Math.Atan2(xDelta, zDelta));
//Create the rotation matrix based on the rotation we calculated
Matrix rotationMatrix;
Matrix.CreateRotationY(rotation, out rotationMatrix);
//Calculate our final transform matrix for the dwarf
Matrix.Multiply(ref rotationMatrix, ref this.translationScaleMatrix, out this.transform);
}
/// <summary>
/// Update the animation and behavior of this dwarf
/// </summary>
/// <param name="gameTime"></param>
/// <param name="playerPosition"></param>
public void Update(GameTime gameTime, ref Vector3 playerPosition)
{
//If we don't have an animation, we should probably pick a new one out
if (this.currentAnimation == null)
{
this.currentAnimation = this.GetNextAnimation(ref playerPosition);
this.animationFrame = this.currentAnimation.StartRow;
}
//Otherwise, increment the animation frame on our current animation
if (this.currentAnimation != null)
{
this.animationFrame += (float)(gameTime.ElapsedGameTime.TotalSeconds * this.currentAnimation.FrameRate);
if ((int)this.animationFrame >= this.currentAnimation.EndRow)
{
//If we still need to repeat some, repeat
if (this.repeatAnimation > 0)
{
this.repeatAnimation--;
this.animationFrame = this.currentAnimation.StartRow;
}
else
{
this.animationFrame = this.currentAnimation.EndRow;
//Time to switch animation
this.currentAnimation = null;
}
}
}
//Rotate the dwarf to face the player
float zDelta = playerPosition.Z - this.translation.Z;
float xDelta = playerPosition.X - this.translation.X;
float rotation = (float)(Math.Atan2(xDelta, zDelta));
//Create the rotation matrix based on the rotation we calculated
Matrix rotationMatrix;
Matrix.CreateRotationY(rotation, out rotationMatrix);
//Calculate our final transform matrix for the dwarf
Matrix.Multiply(ref rotationMatrix, ref this.translationScaleMatrix, out this.transform);
}
