/// <summary>
/// Advances the frame of an animation for a skeleton used on this mesh.
/// </summary>
/// <param name="Skel">A skeleton used to render this mesh.</param>
/// <param name="Animation">The animation to advance.</param>
/// <param name="AnimationTime">The playback time for an animation (how long has it been playing for?)</param>
/// <param name="TimeDelta">The timedelta of the rendering loop.</param>
public void AdvanceFrame(Skeleton Skel, Anim Animation, ref float AnimationTime, float TimeDelta)
{
float Duration = (float)Animation.Motions[0].NumFrames / 30;
AnimationTime += TimeDelta;
AnimationTime = AnimationTime % Duration; //Loop the animation
for (int i = 0; i < Animation.Motions.Count; i++)
{
int BoneIndex = Skel.FindBone(Animation.Motions[i].BoneName);
if (BoneIndex == -1)
continue;
Bone Bne = Skel.Bones[BoneIndex];
int Frame = (int)(AnimationTime * 30);
float FractionShown = AnimationTime * 30 - Frame;
int NextFrame = (Frame + 1 != Animation.Motions[0].NumFrames) ? Frame + 1 : 0;
if (Animation.Motions[i].HasTranslation == 1)
{
Vector3 Translation = new Vector3(Animation.Motions[i].Translations[Frame, 0],
Animation.Motions[i].Translations[Frame, 1], Animation.Motions[i].Translations[Frame, 2]);
Vector3 NextTranslation = new Vector3(Animation.Motions[i].Translations[NextFrame, 0],
Animation.Motions[i].Translations[NextFrame, 1], Animation.Motions[i].Translations[NextFrame, 2]);
Vector3 UpdatedTranslation = new Vector3();
UpdatedTranslation.X = (1 - FractionShown) * Translation.X + FractionShown * NextTranslation.X;
UpdatedTranslation.Y = (1 - FractionShown) * Translation.Y + FractionShown * NextTranslation.Y;
UpdatedTranslation.Z = (1 - FractionShown) * Translation.Z + FractionShown * NextTranslation.Z;
Bne.GlobalTranslation = UpdatedTranslation;
}
if (Animation.Motions[i].HasRotation == 1)
{
Quaternion Rotation = new Quaternion(Animation.Motions[i].Rotations[Frame, 0],
Animation.Motions[i].Rotations[Frame, 1], Animation.Motions[i].Rotations[Frame, 2],
Animation.Motions[i].Rotations[Frame, 3]);
Quaternion NextRotation = new Quaternion(Animation.Motions[i].Rotations[NextFrame, 0],
Animation.Motions[i].Rotations[NextFrame, 1], Animation.Motions[i].Rotations[NextFrame, 2],
Animation.Motions[i].Rotations[NextFrame, 3]);
//Use Slerp to interpolate
float W1, W2 = 1.0f;
float CosTheta = DotProduct(Rotation, NextRotation);
if (CosTheta < 0)
{
CosTheta *= -1;
W2 *= -1;
}
float Theta = (float)Math.Acos(CosTheta);
float SinTheta = (float)Math.Sin(Theta);
if (SinTheta > 0.001f)
{
W1 = (float)Math.Sin((1.0f - FractionShown) * Theta) / SinTheta;
W2 *= (float)Math.Sin(FractionShown * Theta) / SinTheta;
}
else
{
W1 = 1.0f - FractionShown;
W2 = FractionShown;
}
Quaternion UpdatedRotation = new Quaternion();
UpdatedRotation.X = W1 * Rotation.X + W2 * NextRotation.X;
UpdatedRotation.Y = W1 * Rotation.Y + W2 * NextRotation.Y;
UpdatedRotation.Z = W1 * Rotation.Z + W2 * NextRotation.Z;
UpdatedRotation.W = W1 * Rotation.W + W2 * NextRotation.W;
}
}
}
/// <summary>
/// User clicked on an item in the list containing available appearances.
/// </summary>
private void LstAppearances_SelectedIndexChanged(object sender, EventArgs e)
{
if (m_Skeleton == null)
{
m_Skeleton = new Skeleton(this.Device, ContentManager.GetResourceFromLongID(0x100000005));
m_Skeleton.AssignChildren(ref m_Skeleton);
}
m_CurrentAppearance = new Appearance(ContentManager.GetResourceFromLongID(
(ulong)LstAppearances.SelectedItem));
List<Binding> Bindings = new List<Binding>();
foreach (ulong BindingID in m_CurrentAppearance.BindingIDs)
Bindings.Add(new Binding(ContentManager.GetResourceFromLongID(BindingID)));
m_Tex = Texture2D.FromFile(this.Device, new MemoryStream(
ContentManager.GetResourceFromLongID(Bindings[0].TextureAssetID)));
string SelectedStr = (string)LstHeads.SelectedItem;
if (SelectedStr.Contains("bodies"))
{
m_CurrentMesh = new Mesh(ContentManager.GetResourceFromLongID(Bindings[0].MeshAssetID), true);
m_CurrentMesh.TransformVertices2(m_Skeleton.Bones[0], ref mSimpleEffect);
m_CurrentMesh.BlendVertices2();
}
else
m_CurrentMesh = new Mesh(ContentManager.GetResourceFromLongID(Bindings[0].MeshAssetID), false);
LoadMesh(m_CurrentMesh);
}
/// <summary>
/// User clicked on an item in the list containing available heads and bodies.
/// </summary>
private void LstHeads_SelectedIndexChanged(object sender, EventArgs e)
{
if (m_Skeleton == null)
{
m_Skeleton = new Skeleton(this.Device, ContentManager.GetResourceFromLongID(0x100000005));
m_Skeleton.AssignChildren(ref m_Skeleton);
}
foreach(KeyValuePair<ulong, string> Pair in ContentManager.Resources)
{
if ((string)LstHeads.SelectedItem == Pair.Value)
{
//HAndGroup files are used to group together different hand meshes and textures.
if (Pair.Value.Contains(".hag"))
{
Hag HandGroup = new Hag(ContentManager.GetResourceFromLongID(Pair.Key));
m_CurrentAppearance = new Appearance(ContentManager.GetResourceFromLongID(
HandGroup.Appearances[0]));
LstAppearances.Items.Clear();
foreach (ulong AppearanceID in HandGroup.Appearances)
LstAppearances.Items.Add(AppearanceID);
List<Binding> Bindings = new List<Binding>();
foreach (ulong BindingID in m_CurrentAppearance.BindingIDs)
Bindings.Add(new Binding(ContentManager.GetResourceFromLongID(BindingID)));
m_Tex = Texture2D.FromFile(this.Device, new MemoryStream(
ContentManager.GetResourceFromLongID(Bindings[0].TextureAssetID)));
m_CurrentMesh = new Mesh(ContentManager.GetResourceFromLongID(Bindings[0].MeshAssetID), false);
LoadMesh(m_CurrentMesh);
}
else
{
PurchasableObject PO = new PurchasableObject(ContentManager.GetResourceFromLongID(Pair.Key));
m_CurrentOutfit = new Outfit(ContentManager.GetResourceFromLongID(PO.OutfitID));
m_CurrentAppearance = new Appearance(
ContentManager.GetResourceFromLongID(m_CurrentOutfit.LightAppearanceID));
LstAppearances.Items.Clear();
LstAppearances.Items.Add(m_CurrentOutfit.LightAppearanceID);
LstAppearances.Items.Add(m_CurrentOutfit.MediumAppearanceID);
LstAppearances.Items.Add(m_CurrentOutfit.DarkAppearanceID);
List<Binding> Bindings = new List<Binding>();
foreach (ulong BindingID in m_CurrentAppearance.BindingIDs)
Bindings.Add(new Binding(ContentManager.GetResourceFromLongID(BindingID)));
m_Tex = Texture2D.FromFile(this.Device, new MemoryStream(
ContentManager.GetResourceFromLongID(Bindings[0].TextureAssetID)));
//The file selected was most likely a body-mesh, so apply the adult skeleton to it.
if (Pair.Value.Contains("bodies"))
{
m_CurrentMesh = new Mesh(ContentManager.GetResourceFromLongID(Bindings[0].MeshAssetID), true);
m_CurrentMesh.TransformVertices2(m_Skeleton.Bones[0], ref mSimpleEffect);
m_CurrentMesh.BlendVertices2();
LoadMesh(m_CurrentMesh);
}
else
{
m_CurrentMesh = new Mesh(ContentManager.GetResourceFromLongID(Bindings[0].MeshAssetID), false);
LoadMesh(m_CurrentMesh);
}
}
m_LoadComplete = true;
}
}
}
/// <summary>
/// Assigns children to all the bones in a skeleton.
/// </summary>
/// <param name="Skel">The skeleton to whose bones to assign children to.</param>
public void AssignChildren(ref Skeleton Skel)
{
for(int i = 0; i < Skel.Bones.Length; i++)
{
for (int j = 0; j < m_Bones.Length; j++)
{
if (m_Bones[j].ParentName == Skel.Bones[i].BoneName)
{
//Skel.Bones[i] is the parent of m_Bones[j]
Skel.Bones[i].Children[Skel.Bones[i].NumChildren] = m_Bones[j];
Skel.Bones[i].NumChildren++;
}
}
}
}
