A game about forced loneliness, made by TACStudios
tacstudios.tngl.sh
1using UnityEngine;
2using System;
3using System.Collections.Generic;
4
5
6namespace UnityEditor.U2D.Animation
7{
8 internal static class ModuleUtility
9 {
10 public static Vector3 GUIToWorld(Vector3 guiPosition)
11 {
12 return GUIToWorld(guiPosition, Vector3.forward, Vector3.zero);
13 }
14
15 public static Vector3 GUIToWorld(Vector3 guiPosition, Vector3 planeNormal, Vector3 planePos)
16 {
17 Vector3 worldPos = Handles.inverseMatrix.MultiplyPoint(guiPosition);
18
19 if (Camera.current)
20 {
21 Ray ray = HandleUtility.GUIPointToWorldRay(guiPosition);
22
23 planeNormal = Handles.matrix.MultiplyVector(planeNormal);
24
25 planePos = Handles.matrix.MultiplyPoint(planePos);
26
27 Plane plane = new Plane(planeNormal, planePos);
28
29 float distance = 0f;
30
31 if (plane.Raycast(ray, out distance))
32 {
33 worldPos = Handles.inverseMatrix.MultiplyPoint(ray.GetPoint(distance));
34 }
35 }
36
37 return worldPos;
38 }
39
40 public static GUIContent[] ToGUIContentArray(string[] names)
41 {
42 return Array.ConvertAll(names, n => new GUIContent(n));
43 }
44
45 public static Color CalculateNiceColor(int index, int numColors)
46 {
47 numColors = Mathf.Clamp(numColors, 1, int.MaxValue);
48
49 int loops = index / numColors;
50 index = index % 360;
51
52 int hueAngleStep = 360 / numColors;
53 float hueLoopOffset = hueAngleStep * 0.5f;
54 float hue = index * hueAngleStep + loops * hueLoopOffset;
55
56 return Color.HSVToRGB(Mathf.Repeat(hue, 360f) / 360f, 1f, 1f);
57 }
58
59 public static void UpdateLocalToWorldMatrices(List<SpriteBoneData> spriteBoneDataList, Matrix4x4 rootMatrix, ref Matrix4x4[] localToWorldMatrices)
60 {
61 if (localToWorldMatrices == null || localToWorldMatrices.Length != spriteBoneDataList.Count)
62 localToWorldMatrices = new Matrix4x4[spriteBoneDataList.Count];
63
64 bool[] calculatedMatrix = new bool[spriteBoneDataList.Count];
65
66 var processedBoneCount = 0;
67 while (processedBoneCount < spriteBoneDataList.Count)
68 {
69 int oldCount = processedBoneCount;
70
71 for (var i = 0; i < spriteBoneDataList.Count; ++i)
72 {
73 if (calculatedMatrix[i])
74 continue;
75
76 var sourceBone = spriteBoneDataList[i];
77 if (sourceBone.parentId != -1 && !calculatedMatrix[sourceBone.parentId])
78 continue;
79
80 var localToWorldMatrix = Matrix4x4.identity;
81 localToWorldMatrix.SetTRS(sourceBone.localPosition, sourceBone.localRotation, Vector3.one);
82
83 if (sourceBone.parentId == -1)
84 localToWorldMatrix = rootMatrix * localToWorldMatrix;
85 else if (calculatedMatrix[sourceBone.parentId])
86 localToWorldMatrix = localToWorldMatrices[sourceBone.parentId] * localToWorldMatrix;
87
88 localToWorldMatrices[i] = localToWorldMatrix;
89 calculatedMatrix[i] = true;
90 processedBoneCount++;
91 }
92
93 if (oldCount == processedBoneCount)
94 throw new ArgumentException("Invalid hierarchy detected");
95 }
96 }
97
98 public static List<SpriteBoneData> CreateSpriteBoneData(UnityEngine.U2D.SpriteBone[] spriteBoneList, Matrix4x4 rootMatrix)
99 {
100 List<SpriteBoneData> spriteBoneDataList = new List<SpriteBoneData>(spriteBoneList.Length);
101
102 foreach (var spriteBone in spriteBoneList)
103 {
104 spriteBoneDataList.Add(new SpriteBoneData()
105 {
106 parentId = spriteBone.parentId,
107 localPosition = spriteBone.position,
108 localRotation = spriteBone.rotation,
109 depth = spriteBone.position.z,
110 length = spriteBone.length
111 });
112 }
113
114 Matrix4x4[] localToWorldMatrices = null;
115 UpdateLocalToWorldMatrices(spriteBoneDataList, rootMatrix, ref localToWorldMatrices);
116
117 for (int i = 0; i < spriteBoneDataList.Count; ++i)
118 {
119 var spriteBoneData = spriteBoneDataList[i];
120 spriteBoneData.position = localToWorldMatrices[i].MultiplyPoint(Vector2.zero);
121 spriteBoneData.endPosition = localToWorldMatrices[i].MultiplyPoint(Vector2.right * spriteBoneData.length);
122 }
123
124 return spriteBoneDataList;
125 }
126 }
127}