GHZClassSDKXR/Runtime/XimmerseXR/Utils/UltiDrawExt.cs

/** A commerical class which should not be public. Use PEDraw instead. **/

using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using System.IO;

namespace Ximmerse.XR.Utils
{
    internal static class UltiDrawExt 
    {
        #region constant mesh data 

        /// <summary>
        /// Serialize transform represent a full hierarchy transform node.
        /// </summary>
        [System.Serializable]
        internal struct serializeTransform
        {
            public Matrix4x4 t;

            public int idx;

            public int pIdx;

            public serializeTransform (Vector3 localposition, Quaternion localrotation, Vector3 localscale, int parentNodeIndex, int thisNodeIndex)
            {
                t = Matrix4x4.TRS (localposition, localrotation, localscale);
                pIdx = parentNodeIndex;
                idx = thisNodeIndex;
            }
        }

        /// <summary>
        /// The human bones transform data.
        /// </summary>
        static List<serializeTransform> humanBonesTransformData = new List<serializeTransform>();

        /// <summary>
        /// The dog bones transform data.
        /// </summary>
        static List<serializeTransform> dogBoneTransformData = new List<serializeTransform>();

        /// <summary>
        /// a constant string represent human bone array transform, in the format of serializeTransform format.
        /// </summary>
        static readonly string humanBonesArrayTransform = @"{""t"":{""e00"":1.0,""e01"":0.0,""e02"":0.0,""e03"":0.0,""e10"":0.0,""e11"":1.0,""e12"":0.0,""e13"":0.0,""e20"":0.0,""e21"":0.0,""e22"":1.0,""e23"":0.0,""e30"":0.0,""e31"":0.0,""e32"":0.0,""e33"":1.0},""idx"":0,""pIdx"":-1}
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        static readonly string dogBonesArrayTransform = @"{""t"":{""e00"":1.0,""e01"":0.0,""e02"":0.0,""e03"":0.0,""e10"":0.0,""e11"":1.0,""e12"":0.0,""e13"":0.0,""e20"":0.0,""e21"":0.0,""e22"":1.0,""e23"":0.0,""e30"":0.0,""e31"":0.0,""e32"":0.0,""e33"":1.0},""idx"":0,""pIdx"":-1}
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            #endregion



        /// <summary>
        /// Draws a human skeleton.
        /// </summary>
        /// <param name="point">Point.</param>
        /// <param name="rotation">Rotation.</param>
        /// <param name="scale">Scale.</param>
        /// <param name="color">Color.</param>
        internal static void DrawHumanSkeletonLine (Vector3 point, Quaternion rotation, Vector3 scale, Color color)
        {
            if(humanBonesTransformData.Count == 0)
            {
                StringReader strRead = new StringReader(  humanBonesArrayTransform );
                string line = null;
                humanBonesTransformData.Clear();
                do 
                {
                    line = strRead.ReadLine ();
                    if(string.IsNullOrEmpty (line))
                    {
                        break;
                    }
                    humanBonesTransformData.Add(JsonUtility.FromJson<serializeTransform>(line));
                }
                while (line != null);
            }


            Matrix4x4 rootT = Matrix4x4.TRS (point, rotation, scale);
            for(int i=0; i < humanBonesTransformData.Count; i++)
            {
                var humanBoneTransform = humanBonesTransformData[i];
                Matrix4x4 boneT = humanBoneTransform.t;
                boneT.m00 = scale.x;//scale.x
                boneT.m11 = scale.y;//scale.y
                boneT.m22 = scale.z;//scale.z
                Vector3 p = (rootT * boneT).MultiplyPoint (Vector3.zero);
                UltiDraw.DrawWireSphere (p, Quaternion.identity, 0.05f, color);

                if(humanBonesTransformData[i].pIdx >= 0)
                {
                    var humanBoneParentTransform = humanBonesTransformData[humanBoneTransform.pIdx];
                    Matrix4x4 parentBoneT = humanBoneParentTransform.t;
                    parentBoneT.m00 = scale.x;//scale.x
                    parentBoneT.m11 = scale.y;//scale.y
                    parentBoneT.m22 = scale.z;//scale.z
                    Vector3 p2 = (rootT * parentBoneT).MultiplyPoint (Vector3.zero);
                    UltiDraw.DrawLine  (p, p2, color);
                }
            }
        }

        /// <summary>
        /// Draws the mesh wire frame.
        /// </summary>
        /// <param name="point">Point.</param>
        /// <param name="rotation">Rotation.</param>
        /// <param name="scale">Scale.</param>
        /// <param name="mesh">Mesh.</param>
        /// <param name="color">Color.</param>
        internal static void DrawMeshWireFrame (Vector3 point, Quaternion rotation, Vector3 scale, Mesh mesh, Color color)
        {
            Matrix4x4 world = Matrix4x4.TRS(point, rotation, scale);
            int[] tris = mesh.triangles;
            Vector3[] points = mesh.vertices;
            int triCount = tris.Length / 3;
            for (int tri = 0; tri < triCount; tri++)
            {
                Vector3 v1 = world.MultiplyPoint3x4 (points[tris[tri * 3]]);
                Vector3 v2 = world.MultiplyPoint3x4 (points[tris[tri * 3 + 1]]);
                Vector3 v3 = world.MultiplyPoint3x4 (points[tris[tri * 3 + 2]]);

                //UltiDraw.DrawLine(v1, v2, color);
                //UltiDraw.DrawLine(v2, v3, color);
                //UltiDraw.DrawLine(v3, v1, color);

                UltiDraw.DrawTriangleWire(v1, v2, v3, color);
            }
        }

        /// <summary>
        /// Draws a human skeleton.
        /// </summary>
        /// <param name="point">Point.</param>
        /// <param name="rotation">Rotation.</param>
        /// <param name="scale">Scale.</param>
        /// <param name="color">Color.</param>
        internal static void DrawHumanSkeleton (Vector3 point, Quaternion rotation, Vector3 scale, Color color)
        {
            if(humanBonesTransformData.Count == 0)
            {
                StringReader strRead = new StringReader(  humanBonesArrayTransform );
                string line = null;
                humanBonesTransformData.Clear();
                do 
                {
                    line = strRead.ReadLine ();
                    if(string.IsNullOrEmpty (line))
                    {
                        break;
                    }
                    humanBonesTransformData.Add(JsonUtility.FromJson<serializeTransform>(line));
                }
                while (line != null);
            }


            Matrix4x4 rootT = Matrix4x4.TRS (point, rotation, scale);
            for(int i=0; i < humanBonesTransformData.Count; i++)
            {
                var humanBoneTransform = humanBonesTransformData[i];
                Matrix4x4 boneT = humanBoneTransform.t;
                boneT.m00 = scale.x;//scale.x
                boneT.m11 = scale.y;//scale.y
                boneT.m22 = scale.z;//scale.z
                Vector3 p = (rootT * boneT).MultiplyPoint (Vector3.zero);
                UltiDraw.DrawWireSphere (p, Quaternion.identity, 0.05f, color);

                if(humanBonesTransformData[i].pIdx >= 0)
                {
                    var humanBoneParentTransform = humanBonesTransformData[humanBoneTransform.pIdx];
                    Matrix4x4 parentBoneT = humanBoneParentTransform.t;
                    parentBoneT.m00 = scale.x;//scale.x
                    parentBoneT.m11 = scale.y;//scale.y
                    parentBoneT.m22 = scale.z;//scale.z
                    Vector3 p2 = (rootT * parentBoneT).MultiplyPoint (Vector3.zero);

                    Vector3 vect = p2 - p;
                    Quaternion boneFwd = Quaternion.identity;
                    if(vect != Vector3.zero)
                    {
                        boneFwd = Quaternion.LookRotation(vect);
                    }
                    UltiDraw.DrawBone  (p, boneFwd, scale.x/8, vect.magnitude, color);
                }
            }
        }

        /// <summary>
        /// Draws a dog skeleton line.
        /// </summary>
        /// <param name="point">Point.</param>
        /// <param name="rotation">Rotation.</param>
        /// <param name="scale">Scale.</param>
        /// <param name="color">Color.</param>
        internal static void DrawDogSkeletonLine (Vector3 point, Quaternion rotation, Vector3 scale, Color color)
        {
            if(dogBoneTransformData.Count == 0)
            {
                StringReader strRead = new StringReader(dogBonesArrayTransform);
                string line = null;
                dogBoneTransformData.Clear();
                do 
                {
                    line = strRead.ReadLine ();
                    if(string.IsNullOrEmpty (line))
                    {
                        break;
                    }
                    dogBoneTransformData.Add(JsonUtility.FromJson<serializeTransform>(line));
                }
                while (line != null);
            }


            Matrix4x4 rootT = Matrix4x4.TRS (point, rotation, scale);
            for(int i=0; i < dogBoneTransformData.Count; i++)
            {
                var dogBoneTransform = dogBoneTransformData[i];
                Matrix4x4 boneT = dogBoneTransform.t;
                boneT.m00 = scale.x;//scale.x
                boneT.m11 = scale.y;//scale.y
                boneT.m22 = scale.z;//scale.z
                Vector3 p = (rootT * boneT).MultiplyPoint (Vector3.zero);
                UltiDraw.DrawWireSphere (p, Quaternion.identity, 0.05f, color);

                if(dogBoneTransform.pIdx >= 0)
                {
                    var dogBoneParentTransform = dogBoneTransformData[dogBoneTransform.pIdx];
                    Matrix4x4 parentBoneT = dogBoneParentTransform.t;
                    parentBoneT.m00 = scale.x;//scale.x
                    parentBoneT.m11 = scale.y;//scale.y
                    parentBoneT.m22 = scale.z;//scale.z
                    Vector3 p2 = (rootT * parentBoneT).MultiplyPoint (Vector3.zero);
                    UltiDraw.DrawLine  (p, p2, color);
                }
            }
        }


        /// <summary>
        /// Draws a dog skeleton.
        /// </summary>
        /// <param name="point">Point.</param>
        /// <param name="rotation">Rotation.</param>
        /// <param name="scale">Scale.</param>
        /// <param name="color">Color.</param>
        internal static void DrawDogSkeleton (Vector3 point, Quaternion rotation, Vector3 scale, Color color)
        {
            if(dogBoneTransformData.Count == 0)
            {
                StringReader strRead = new StringReader(dogBonesArrayTransform);
                string line = null;
                dogBoneTransformData.Clear();
                do 
                {
                    line = strRead.ReadLine ();
                    if(string.IsNullOrEmpty (line))
                    {
                        break;
                    }
                    dogBoneTransformData.Add(JsonUtility.FromJson<serializeTransform>(line));
                }
                while (line != null);
            }


            Matrix4x4 rootT = Matrix4x4.TRS (point, rotation, scale);
            for(int i=0; i < dogBoneTransformData.Count; i++)
            {
                var dogBoneTransform = dogBoneTransformData[i];
                Matrix4x4 boneT = dogBoneTransform.t;
                boneT.m00 = scale.x;//scale.x
                boneT.m11 = scale.y;//scale.y
                boneT.m22 = scale.z;//scale.z
                Vector3 p = (rootT * boneT).MultiplyPoint (Vector3.zero);
                UltiDraw.DrawWireSphere (p, Quaternion.identity, 0.05f, color);

                if(dogBoneTransform.pIdx >= 0)
                {
                    var dogBoneParentTransform = dogBoneTransformData[dogBoneTransform.pIdx];
                    Matrix4x4 parentBoneT = dogBoneParentTransform.t;
                    parentBoneT.m00 = scale.x;//scale.x
                    parentBoneT.m11 = scale.y;//scale.y
                    parentBoneT.m22 = scale.z;//scale.z
                    Vector3 p2 = (rootT * parentBoneT).MultiplyPoint (Vector3.zero);

                    Vector3 vect = p2 - p;
                    Quaternion boneFwd = Quaternion.identity;
                    if(vect != Vector3.zero)
                    {
                        boneFwd = Quaternion.LookRotation(vect);
                    }
                    UltiDraw.DrawBone  (p, boneFwd, scale.x/8, vect.magnitude, color);
                }
            }
        }
    }
    
}