100 lines
3.1 KiB
C#
100 lines
3.1 KiB
C#
using System;
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using System.Numerics;
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using System.Runtime.Serialization;
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using BinaryPack.Attributes;
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using NitroxModel.Helper;
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namespace NitroxModel.DataStructures.Unity
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{
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[DataContract]
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[Serializable]
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public class NitroxTransform
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{
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[DataMember(Order = 1)]
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public NitroxVector3 LocalPosition;
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[DataMember(Order = 2)]
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public NitroxQuaternion LocalRotation;
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[DataMember(Order = 3)]
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public NitroxVector3 LocalScale;
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public Matrix4x4 LocalToWorldMatrix
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{
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get
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{
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Matrix4x4 cachedMatrix = Matrix4x4Extension.Compose(LocalPosition, LocalRotation, LocalScale);
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return Parent != null ? cachedMatrix * Parent.LocalToWorldMatrix : cachedMatrix;
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}
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}
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public NitroxTransform Parent;
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[IgnoredMember]
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public NitroxVector3 Position
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{
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get
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{
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Matrix4x4 matrix = Parent?.LocalToWorldMatrix ?? Matrix4x4.Identity;
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return matrix.Transform(LocalPosition);
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}
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set
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{
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Matrix4x4 matrix = Parent != null ? Matrix4x4Extension.Compose(value, LocalRotation, LocalScale) * Parent.LocalToWorldMatrix.Invert() : Matrix4x4Extension.Compose(value, LocalRotation, LocalScale);
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LocalPosition = (NitroxVector3)matrix.Translation;
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}
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}
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[IgnoredMember]
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public NitroxQuaternion Rotation
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{
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get
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{
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Matrix4x4 matrix = Parent?.LocalToWorldMatrix ?? Matrix4x4.Identity;
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Matrix4x4.Decompose(matrix, out Vector3 _, out Quaternion rotation, out Vector3 _);
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return (NitroxQuaternion)rotation * LocalRotation;
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}
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set
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{
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Matrix4x4 matrix = Parent != null ? Matrix4x4Extension.Compose(LocalPosition, value, LocalScale) * Parent.LocalToWorldMatrix.Invert() : Matrix4x4Extension.Compose(LocalPosition, value, LocalScale);
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Matrix4x4.Decompose(matrix, out Vector3 _, out Quaternion rotation, out Vector3 _);
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LocalRotation = (NitroxQuaternion)rotation;
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}
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}
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public void SetParent(NitroxTransform parent, bool worldPositionStays = true)
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{
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if (!worldPositionStays)
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{
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Parent = parent;
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return;
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}
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NitroxVector3 position = Position;
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NitroxQuaternion rotation = Rotation;
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Parent = parent;
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Position = position;
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Rotation = rotation;
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}
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public NitroxTransform() { }
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public NitroxTransform(NitroxVector3 localPosition, NitroxQuaternion localRotation, NitroxVector3 scale)
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{
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LocalPosition = localPosition;
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LocalRotation = localRotation;
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LocalScale = scale;
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}
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public override string ToString()
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{
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return $"(Position: {Position}, LocalPosition: {LocalPosition}, Rotation: {Rotation}, LocalRotation: {LocalRotation}, LocalScale: {LocalScale})";
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}
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}
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}
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