public BoundingBox CalculateBoundingBox(AnimatedModel model, AnimatedModel skin, List <int> meshesToUse = null)
{
Vector3 min = new Vector3(float.MaxValue);
Vector3 max = new Vector3(float.MinValue);
for (int i = 0; i < skin.Meshes.Count; i++)
{
if (meshesToUse != null && !meshesToUse.Contains(i))
{
continue;
}
foreach (var vertex in skin.Meshes[i].Vertices)
{
var transformedPosition = MathC.HomogenousTransform(vertex.Position, model.AnimationTransforms[i]);
min = Vector3.Min(transformedPosition, min);
max = Vector3.Max(transformedPosition, max);
}
}
BoundingBox = new BoundingBox(new Vector3((int)min.X, (int)max.Y, (int)min.Z),
new Vector3((int)max.X, (int)min.Y, (int)max.Z));
return(BoundingBox);
}
// This method is optional. By sorting the wad textures it may result ahead of time
// we may have better texture space efficency.
public void PreloadReplaceWad(IEnumerable <WadMoveable> newMoveables, IEnumerable <WadStatic> newStatics)
{
Dispose();
try
{
PreloadReplaceTextures(newMoveables, newStatics);
}
catch (TextureAtlasFullException)
{
logger.Error("Unable to preload wad because the texture atlas became too full!");
return;
}
// Create moveable models
Parallel.ForEach(newMoveables, moveable =>
{
var model = AnimatedModel.FromWadMoveable(GraphicsDevice, moveable, AllocateTexture);
lock (Moveables)
Moveables.Add(moveable, model);
});
// Create static meshes
Parallel.ForEach(newStatics, @static =>
{
var model = new StaticModel(GraphicsDevice);
model.Meshes.Add(ObjectMesh.FromWad2(GraphicsDevice, @static.Mesh, AllocateTexture));
model.UpdateBuffers();
lock (Statics)
Statics.Add(@static, model);
});
}
public static AnimatedModel FromWadMoveable(GraphicsDevice device, WadMoveable mov, Func <WadTexture, VectorInt2> allocateTexture)
{
AnimatedModel model = new AnimatedModel(device);
List <WadBone> bones = mov.Bones;
// Create meshes
for (int m = 0; m < bones.Count; m++)
{
model.Meshes.Add(ObjectMesh.FromWad2(device, bones[m].Mesh, allocateTexture));
}
// HACK: Add matrices here because if original WAD stack was corrupted, we could have broken parent - children
// relations and so we could have meshes count different from matrices count
for (int j = 0; j < bones.Count; j++)
{
model.BindPoseTransforms.Add(Matrix4x4.Identity);
model.AnimationTransforms.Add(Matrix4x4.Identity);
}
// Build the skeleton
model.Root = BuildSkeleton(model, null, bones);
// Prepare animations
for (int j = 0; j < mov.Animations.Count; j++)
{
model.Animations.Add(Animation.FromWad2(bones, mov.Animations[j]));
}
// Prepare data by loading the first valid animation and uploading data to the GPU
model.BuildHierarchy();
if (model.Animations.Count > 0 && model.Animations.Any(a => a.KeyFrames.Count > 0))
{
model.BuildAnimationPose(model.Animations.FirstOrDefault(a => a.KeyFrames.Count > 0)?.KeyFrames[0]);
}
model.UpdateBuffers();
return(model);
}
public AnimatedModel GetMoveable(WadMoveable moveable, bool maybeRebuildAll = true)
{
// Check if the data is already loaded
// If yes attempt to use that one
AnimatedModel model;
if (Moveables.TryGetValue(moveable, out model))
{
if (model.Version >= moveable.Version)
{
return(model);
}
ReclaimTextureSpace(model);
model.Dispose();
Moveables.Remove(moveable);
}
// The data is either new or has changed, unfortunately we need to reload it
try
{
model = AnimatedModel.FromWadMoveable(GraphicsDevice, moveable, AllocateTexture);
}
catch (TextureAtlasFullException exc)
{
logger.Info(exc.Message);
if (maybeRebuildAll)
{
logger.Info("Starting to rebuild the entire atlas.");
Dispose();
return(GetMoveable(moveable, false));
}
}
Moveables.Add(moveable, model);
return(model);
}
private static Bone BuildSkeleton(AnimatedModel model, Bone parentBone, List <WadBone> bones)
{
model.Bones = new List <Bone>();
var stack = new Stack <Bone>();
for (int i = 0; i < bones.Count; i++)
{
var nb = new Bone();
nb.Name = bones[i].Name;
nb.Pivot = bones[i].Translation;
nb.Index = i;
model.Bones.Add(nb);
}
var currentBone = model.Bones[0];
currentBone.Transform = Matrix4x4.Identity;
currentBone.GlobalTransform = Matrix4x4.Identity;
for (int j = 1; j < model.Bones.Count; j++)
{
int linkX = (int)bones[j].Translation.X;
int linkY = (int)bones[j].Translation.Y;
int linkZ = (int)bones[j].Translation.Z;
switch (bones[j].OpCode)
{
case WadLinkOpcode.NotUseStack:
model.Bones[j].Transform = Matrix4x4.CreateTranslation(linkX, linkY, linkZ);
model.Bones[j].Parent = currentBone;
currentBone.Children.Add(model.Bones[j]);
currentBone = model.Bones[j];
break;
case WadLinkOpcode.Pop:
if (stack.Count <= 0)
{
continue;
}
currentBone = stack.Pop();
model.Bones[j].Transform = Matrix4x4.CreateTranslation(linkX, linkY, linkZ);
model.Bones[j].Parent = currentBone;
currentBone.Children.Add(model.Bones[j]);
currentBone = model.Bones[j];
break;
case WadLinkOpcode.Push:
stack.Push(currentBone);
model.Bones[j].Transform = Matrix4x4.CreateTranslation(linkX, linkY, linkZ);
model.Bones[j].Parent = currentBone;
currentBone.Children.Add(model.Bones[j]);
currentBone = model.Bones[j];
break;
case WadLinkOpcode.Read:
if (stack.Count <= 0)
{
continue;
}
var bone = stack.Pop();
model.Bones[j].Transform = Matrix4x4.CreateTranslation(linkX, linkY, linkZ);
model.Bones[j].Parent = bone;
bone.Children.Add(model.Bones[j]);
currentBone = model.Bones[j];
stack.Push(bone);
break;
}
}
return(model.Bones[0]);
}
