unsafe Dictionary<string, Animation> ReadAnimations(BinaryReader reader) {
var anims = new Dictionary<string, Animation>();
var count = reader.ReadInt32();
for (var i = 0; i < count; i++) {
var name = reader.ReadString();
var duration = reader.ReadDouble();
var rate = reader.ReadDouble();
var chanCount = reader.ReadInt32();
var channels = new AnimationChannel[chanCount];
for (var j = 0; j < chanCount; j++) {
var nodeName = reader.ReadString();
var preState = (AnimationBehavior)reader.ReadInt32();
var postState = (AnimationBehavior)reader.ReadInt32();
var keyCount = reader.ReadInt32();
var positions = new PositionKey[keyCount];
var sz = keyCount * sizeof(PositionKey);
var buf = new byte[sz];
reader.Read(buf, 0, sz);
fixed(byte *p = &buf[0]) {
var src = (PositionKey*)p;
fixed(PositionKey* dst = &positions[0]) {
for (var k = 0; k < keyCount; k++) {
*(dst + k) = *(src + k);
}
}
}
keyCount = reader.ReadInt32();
var rotations = new RotationKey[keyCount];
sz = keyCount * sizeof(RotationKey);
if (buf.Length < sz)
buf = new byte[sz];
reader.Read(buf, 0, sz);
fixed(byte *p = &buf[0]) {
var src = (RotationKey*)p;
fixed(RotationKey *dst = &rotations[0]) {
for (var k = 0; k < keyCount; k++) {
*(dst + k) = *(src + k);
}
}
}
keyCount = reader.ReadInt32();
var scales = new ScalingKey[keyCount];
sz = keyCount * sizeof(ScalingKey);
if (buf.Length < sz)
buf = new byte[sz];
reader.Read(buf, 0, sz);
fixed(byte *p = &buf[0]) {
var src = (ScalingKey*)p;
fixed(ScalingKey *dst = &scales[0]) {
for (var k = 0; k < keyCount; k++) {
*(dst + k) = *(src + k);
}
}
}
channels[j] = new AnimationChannel(nodeName, preState, postState, positions, rotations, scales);
}
anims[name] = new Animation(name, duration, rate, channels);
}
return anims;
}
void Link(Animation anim) {
foreach (var chan in anim.Channels) {
chan.Node = _root.FindByName(chan.NodeName);
}
}
