496 lines
16 KiB
C#
496 lines
16 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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using OpenTK;
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namespace Switch_Toolbox.Library
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{
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public class Animation : TreeNode
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{
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public float Frame = 0;
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public int FrameCount = 0;
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public List<KeyNode> Bones = new List<KeyNode>();
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public List<object> Children = new List<object>();
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public Animation()
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{
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ImageKey = "anim";
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SelectedImageKey = "anim";
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}
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public Animation(string Name)
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{
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Text = Name;
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ImageKey = "anim";
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SelectedImageKey = "anim";
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}
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public enum RotationType
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{
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EULER = 0,
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QUATERNION
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}
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public enum InterpolationType
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{
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LINEAR = 0,
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CONSTANT,
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HERMITE,
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STEP,
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};
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public class KeyNode : TreeNode
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{
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public int Hash = -1;
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public KeyGroup XPOS = new KeyGroup() { Text = "XPOS" };
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public KeyGroup YPOS = new KeyGroup() { Text = "YPOS" };
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public KeyGroup ZPOS = new KeyGroup() { Text = "ZPOS" };
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public RotationType RotType = RotationType.QUATERNION;
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public KeyGroup XROT = new KeyGroup() { Text = "XROT" };
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public KeyGroup YROT = new KeyGroup() { Text = "YROT" };
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public KeyGroup ZROT = new KeyGroup() { Text = "ZROT" };
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public KeyGroup WROT = new KeyGroup() { Text = "WROT" };
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public KeyGroup XSCA = new KeyGroup() { Text = "XSCA" };
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public KeyGroup YSCA = new KeyGroup() { Text = "YSCA" };
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public KeyGroup ZSCA = new KeyGroup() { Text = "ZSCA" };
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public KeyNode(String bname)
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{
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Text = bname;
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if (bname != null && bname.Equals("")) Text = Hash.ToString("x");
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ImageKey = "bone";
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SelectedImageKey = "bone";
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}
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public void SetKeyFromBone(float frame, STBone bone)
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{
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Vector3 rot = ANIM.quattoeul(bone.rot);
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if (rot.X != bone.rotation[0] || rot.Y != bone.rotation[1] || rot.Z != bone.rotation[2])
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{
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XROT.GetKeyFrame(frame).Value = bone.rot.X;
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YROT.GetKeyFrame(frame).Value = bone.rot.Y;
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ZROT.GetKeyFrame(frame).Value = bone.rot.Z;
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WROT.GetKeyFrame(frame).Value = bone.rot.W;
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}
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if (bone.pos.X != bone.position[0] || bone.pos.Y != bone.position[1] || bone.pos.Z != bone.position[2])
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{
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XPOS.GetKeyFrame(frame).Value = bone.pos.X;
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YPOS.GetKeyFrame(frame).Value = bone.pos.Y;
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ZPOS.GetKeyFrame(frame).Value = bone.pos.Z;
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}
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if (bone.sca.X != bone.scale[0] || bone.sca.Y != bone.scale[1] || bone.sca.Z != bone.scale[2])
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{
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XSCA.GetKeyFrame(frame).Value = bone.sca.X;
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YSCA.GetKeyFrame(frame).Value = bone.sca.Y;
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ZSCA.GetKeyFrame(frame).Value = bone.sca.Z;
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}
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}
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}
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public void ReplaceMe(Animation a)
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{
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Tag = null;
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Nodes.Clear();
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Bones.Clear();
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Children.Clear();
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Bones = a.Bones;
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FrameCount = a.FrameCount;
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}
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public class KeyGroup : TreeNode
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{
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public bool HasAnimation()
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{
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return Keys.Count > 0;
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}
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public List<KeyFrame> Keys = new List<KeyFrame>();
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public float FrameCount
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{
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get
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{
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float fc = 0;
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foreach (KeyFrame k in Keys)
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if (k.Frame > fc) fc = k.Frame;
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return fc;
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}
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}
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public KeyFrame GetKeyFrame(float frame)
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{
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KeyFrame key = null;
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int i;
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for (i = 0; i < Keys.Count; i++)
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{
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if (Keys[i].Frame == frame)
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{
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key = Keys[i];
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break;
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}
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if (Keys[i].Frame > frame)
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{
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break;
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}
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}
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if (key == null)
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{
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key = new KeyFrame();
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key.Frame = frame;
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Keys.Insert(i, key);
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}
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return key;
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}
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int LastFound = 0;
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float LastFrame;
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public float GetValue(float frame)
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{
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KeyFrame k1 = (KeyFrame)Keys[0], k2 = (KeyFrame)Keys[0];
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int i = 0;
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if (frame < LastFrame)
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LastFound = 0;
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for (i = LastFound; i < Keys.Count; i++)
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{
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LastFound = i % (Keys.Count);
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KeyFrame k = Keys[LastFound];
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if (k.Frame < frame)
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{
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k1 = k;
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}
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else
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{
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k2 = k;
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break;
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}
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}
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LastFound -= 1;
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if (LastFound < 0)
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LastFound = 0;
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if (LastFound >= Keys.Count - 2)
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LastFound = 0;
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LastFrame = frame;
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if (k1.InterType == InterpolationType.CONSTANT)
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return k1.Value;
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if (k1.InterType == InterpolationType.STEP)
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return k1.Value;
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if (k1.InterType == InterpolationType.LINEAR)
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{
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return Lerp(k1.Value, k2.Value, k1.Frame, k2.Frame, frame);
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}
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if (k1.InterType == InterpolationType.HERMITE)
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{
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float val = Hermite(frame, k1.Frame, k2.Frame, k1.In, k1.Out != -1 ? k1.Out : k2.In, k1.Value, k2.Value) * (k1.Degrees ? (float)Math.PI / 180 : 1);
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if (Parent != null && Text.Equals("XROT"))
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Console.WriteLine(Text + " " + k1.Value + " " + k2.Value + " " + k1.Frame + " " + k2.Frame + " " + (val * 180 / (float)Math.PI));
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if (float.IsNaN(val)) val = k1._value;
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return val;//k1.Out != -1 ? k1.Out :
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}
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return k1.Value;
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}
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public KeyFrame[] GetFrame(float frame)
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{
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if (Keys.Count == 0) return null;
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KeyFrame k1 = (KeyFrame)Keys[0], k2 = (KeyFrame)Keys[0];
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foreach (KeyFrame k in Keys)
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{
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if (k.Frame < frame)
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{
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k1 = k;
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}
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else
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{
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k2 = k;
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break;
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}
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}
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return new KeyFrame[] { k1, k2 };
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}
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public void ExpandNodes()
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{
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Nodes.Clear();
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foreach (KeyFrame v in Keys)
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{
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Nodes.Add(v.GetNode());
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}
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}
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}
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public class KeyFrame
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{
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public float Value
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{
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get { if (Degrees) return _value * 180 / (float)Math.PI; else return _value; }
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set { _value = value; }//Text = _frame + " : " + _value; }
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}
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public float _value;
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public float Frame
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{
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get { return _frame; }
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set { _frame = value; }//Text = _frame + " : " + _value; }
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}
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public String Text;
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public float _frame;
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public float In = 0, Out = -1;
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public bool Weighted = false;
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public bool Degrees = false; // Use Degrees
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public InterpolationType InterType = InterpolationType.LINEAR;
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public KeyFrame(float value, float frame)
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{
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Value = value;
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Frame = frame;
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}
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public KeyFrame()
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{
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}
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public TreeNode GetNode()
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{
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TreeNode t = new TreeNode();
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t.Text = Frame + " : " + Value + (In != 0 ? " " + In.ToString() : "");
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t.Tag = this;
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return t;
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}
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public override string ToString()
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{
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return Frame + " " + Value;
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}
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}
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public void SetFrame(float frame)
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{
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Frame = frame;
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}
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public int Size()
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{
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return FrameCount;
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}
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public void NextFrame(STSkeleton skeleton, bool isChild = false)
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{
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if (Frame >= FrameCount) return;
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if (Frame == 0 && !isChild)
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skeleton.reset();
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foreach (object child in Children)
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{
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if (child is Animation)
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{
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((Animation)child).SetFrame(Frame);
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((Animation)child).NextFrame(skeleton, isChild: true);
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}
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}
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bool Updated = false; // no need to update skeleton of animations that didn't change
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foreach (KeyNode node in Bones)
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{
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// Get Skeleton Node
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STBone b = null;
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b = skeleton.getBone(node.Text);
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if (b == null) continue;
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Updated = true;
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b.pos.X = node.XPOS.GetValue(Frame);
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b.pos.Y = node.YPOS.GetValue(Frame);
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b.pos.Z = node.ZPOS.GetValue(Frame);
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if (node.XSCA.HasAnimation())
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b.sca.X = node.XSCA.GetValue(Frame);
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else b.sca.X = 1;
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if (node.YSCA.HasAnimation())
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b.sca.Y = node.YSCA.GetValue(Frame);
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else b.sca.Y = 1;
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if (node.ZSCA.HasAnimation())
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b.sca.Z = node.ZSCA.GetValue(Frame);
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else b.sca.Z = 1;
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if (node.XROT.HasAnimation() || node.YROT.HasAnimation() || node.ZROT.HasAnimation())
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{
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if (node.RotType == RotationType.QUATERNION)
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{
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KeyFrame[] x = node.XROT.GetFrame(Frame);
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KeyFrame[] y = node.YROT.GetFrame(Frame);
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KeyFrame[] z = node.ZROT.GetFrame(Frame);
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KeyFrame[] w = node.WROT.GetFrame(Frame);
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Quaternion q1 = new Quaternion(x[0].Value, y[0].Value, z[0].Value, w[0].Value);
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Quaternion q2 = new Quaternion(x[1].Value, y[1].Value, z[1].Value, w[1].Value);
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if (x[0].Frame == Frame)
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b.rot = q1;
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else
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if (x[1].Frame == Frame)
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b.rot = q2;
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else
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b.rot = Quaternion.Slerp(q1, q2, (Frame - x[0].Frame) / (x[1].Frame - x[0].Frame));
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}
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else
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if (node.RotType == RotationType.EULER)
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{
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float x = node.XROT.HasAnimation() ? node.XROT.GetValue(Frame) : b.rotation[0];
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float y = node.YROT.HasAnimation() ? node.YROT.GetValue(Frame) : b.rotation[1];
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float z = node.ZROT.HasAnimation() ? node.ZROT.GetValue(Frame) : b.rotation[2];
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b.rot = EulerToQuat(z, y, x);
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}
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}
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}
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Frame += 1f;
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if (Frame >= FrameCount)
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{
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Frame = 0;
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}
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if (!isChild && Updated)
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{
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skeleton.update();
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}
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}
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public void ExpandBones()
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{
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Nodes.Clear();
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foreach (var v in Bones)
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Nodes.Add(v);
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}
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public bool HasBone(String name)
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{
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foreach (var v in Bones)
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if (v.Text.Equals(name))
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return true;
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return false;
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}
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public KeyNode GetBone(String name)
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{
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foreach (var v in Bones)
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if (v.Text.Equals(name))
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return v;
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return null;
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}
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#region Interpolation
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public static float Hermite(float frame, float frame1, float frame2, float outslope, float inslope, float val1, float val2)
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{
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/*float offset = frame - frame1;
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float span = frame2 - frame1;
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if (offset == 0) return val1;
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if (offset == span) return val2;
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float diff = val2 - val1;
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float time = offset / span;
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//bool prevDouble = prevframe1 >= 0 && prevframe1 == frame1 - 1;
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//bool nextDouble = next._next._index >= 0 && next._next._index == next._index + 1;
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bool oneApart = frame2 == frame1 + 1;
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float tan = outslope, nextTan = inslope;
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if (oneApart)
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tan = (val2 - val1) / (frame2 - frame1);
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//if (oneApart)
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nextTan = (val2 - val1) / (frame2 - frame1);
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float inv = time - 1.0f; //-1 to 0
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return val1
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+ (offset * inv * ((inv * tan) + (time * nextTan)))
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+ ((time * time) * (3.0f - 2.0f * time) * diff);*/
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if (frame == frame1) return val1;
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if (frame == frame2) return val2;
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float distance = frame - frame1;
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float invDuration = 1f / (frame2 - frame1);
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float t = distance * invDuration;
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float t1 = t - 1f;
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return (val1 + ((((val1 - val2) * ((2f * t) - 3f)) * t) * t)) + ((distance * t1) * ((t1 * outslope) + (t * inslope)));
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}
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public static float Lerp(float av, float bv, float v0, float v1, float t)
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{
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if (v0 == v1) return av;
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if (t == v0) return av;
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if (t == v1) return bv;
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float mu = (t - v0) / (v1 - v0);
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return ((av * (1 - mu)) + (bv * mu));
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}
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public static Quaternion Slerp(Vector4 v0, Vector4 v1, double t)
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{
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v0.Normalize();
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v1.Normalize();
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double dot = Vector4.Dot(v0, v1);
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const double DOT_THRESHOLD = 0.9995;
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if (Math.Abs(dot) > DOT_THRESHOLD)
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{
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Vector4 result = v0 + new Vector4((float)t) * (v1 - v0);
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result.Normalize();
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return new Quaternion(result.Xyz, result.W);
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}
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if (dot < 0.0f)
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{
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v1 = -v1;
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dot = -dot;
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}
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if (dot < -1) dot = -1;
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if (dot > 1) dot = 1;
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double theta_0 = Math.Acos(dot); // theta_0 = angle between input vectors
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double theta = theta_0 * t; // theta = angle between v0 and result
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Vector4 v2 = v1 - v0 * new Vector4((float)dot);
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v2.Normalize(); // { v0, v2 } is now an orthonormal basis
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Vector4 res = v0 * new Vector4((float)Math.Cos(theta)) + v2 * new Vector4((float)Math.Sign(theta));
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return new Quaternion(res.Xyz, res.W);
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}
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public static Quaternion EulerToQuat(float z, float y, float x)
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{
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{
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Quaternion xRotation = Quaternion.FromAxisAngle(Vector3.UnitX, x);
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Quaternion yRotation = Quaternion.FromAxisAngle(Vector3.UnitY, y);
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Quaternion zRotation = Quaternion.FromAxisAngle(Vector3.UnitZ, z);
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Quaternion q = (zRotation * yRotation * xRotation);
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if (q.W < 0)
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q *= -1;
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//return xRotation * yRotation * zRotation;
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return q;
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}
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}
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#endregion
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}
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}
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