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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 | #region License/* FNA - XNA4 Reimplementation for Desktop Platforms * Copyright 2009-2016 Ethan Lee and the MonoGame Team * * Released under the Microsoft Public License. * See LICENSE for details. */#endregion#region Using Statementsusing System.Collections.Generic;using Microsoft.Xna.Framework.Graphics;#endregionnamespace Microsoft.Xna.Framework.Content{ internal class ModelReader : ContentTypeReader<Model> { #region Public Constructor public ModelReader() { } #endregion #region Private Bone Helper Method private static int ReadBoneReference(ContentReader reader, uint boneCount) { uint boneId; // Read the bone ID, which may be encoded as either an 8 or 32 bit value. if (boneCount < 255) { boneId = reader.ReadByte(); } else { boneId = reader.ReadUInt32(); } if (boneId != 0) { return (int) (boneId - 1); } return -1; } #endregion #region Protected Read Method protected internal override Model Read(ContentReader reader, Model existingInstance) { // Read the bone names and transforms. uint boneCount = reader.ReadUInt32(); List<ModelBone> bones = new List<ModelBone>((int) boneCount); for (uint i = 0; i < boneCount; i += 1) { string name = reader.ReadObject<string>(); Matrix matrix = reader.ReadMatrix(); ModelBone bone = new ModelBone { Transform = matrix, Index = (int) i, Name = name }; bones.Add(bone); } // Read the bone hierarchy. for (int i = 0; i < boneCount; i += 1) { ModelBone bone = bones[i]; // Read the parent bone reference. int parentIndex = ReadBoneReference(reader, boneCount); if (parentIndex != -1) { bone.Parent = bones[parentIndex]; } // Read the child bone references. uint childCount = reader.ReadUInt32(); if (childCount != 0) { for (uint j = 0; j < childCount; j += 1) { int childIndex = ReadBoneReference(reader, boneCount); if (childIndex != -1) { bone.AddChild(bones[childIndex]); } } } } List<ModelMesh> meshes = new List<ModelMesh>(); // Read the mesh data. int meshCount = reader.ReadInt32(); for (int i = 0; i < meshCount; i += 1) { string name = reader.ReadObject<string>(); int parentBoneIndex = ReadBoneReference(reader, boneCount); BoundingSphere boundingSphere = reader.ReadBoundingSphere(); // Tag object meshTag = reader.ReadObject<object>(); // Read the mesh part data. int partCount = reader.ReadInt32(); List<ModelMeshPart> parts = new List<ModelMeshPart>(partCount); for (uint j = 0; j < partCount; j += 1) { ModelMeshPart part; if (existingInstance != null) { part = existingInstance.Meshes[i].MeshParts[(int) j]; } else { part = new ModelMeshPart(); } part.VertexOffset = reader.ReadInt32(); part.NumVertices = reader.ReadInt32(); part.StartIndex = reader.ReadInt32(); part.PrimitiveCount = reader.ReadInt32(); // Tag part.Tag = reader.ReadObject<object>(); parts.Add(part); int jj = (int) j; reader.ReadSharedResource<VertexBuffer>( delegate (VertexBuffer v) { parts[jj].VertexBuffer = v; } ); reader.ReadSharedResource<IndexBuffer>( delegate (IndexBuffer v) { parts[jj].IndexBuffer = v; } ); reader.ReadSharedResource<Effect>( delegate (Effect v) { parts[jj].Effect = v; } ); } if (existingInstance != null) { continue; } ModelMesh mesh = new ModelMesh(reader.GraphicsDevice, parts); mesh.Tag = meshTag; mesh.Name = name; mesh.ParentBone = bones[parentBoneIndex]; mesh.ParentBone.AddMesh(mesh); mesh.BoundingSphere = boundingSphere; meshes.Add(mesh); } if (existingInstance != null) { // Read past remaining data and return existing instance ReadBoneReference(reader, boneCount); reader.ReadObject<object>(); return existingInstance; } // Read the final pieces of model data. int rootBoneIndex = ReadBoneReference(reader, boneCount); Model model = new Model(reader.GraphicsDevice, bones, meshes); model.Root = bones[rootBoneIndex]; model.BuildHierarchy(); // Tag? model.Tag = reader.ReadObject<object>(); return model; } #endregion }} |
