mirror of
https://github.com/simtactics/mysimulation.git
synced 2025-03-19 00:21:20 +00:00
316 lines
11 KiB
C#
316 lines
11 KiB
C#
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using FSO.Files.Formats.IFF;
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using FSO.Files.Formats.IFF.Chunks;
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using FSO.Files.Utils;
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using Microsoft.Xna.Framework;
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using Microsoft.Xna.Framework.Graphics;
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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using System.Runtime.InteropServices;
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namespace FSO.Files.RC
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{
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public class DGRP3DGeometry
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{
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public bool Rendered = false;
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public Texture2D Pixel;
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public ushort PixelSPR;
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public ushort PixelDir;
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public ushort CustomTexture;
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public static Func<string, Texture2D> ReplTextureProvider;
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public List<DGRP3DVert> SVerts; //simplified vertices
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public List<int> SIndices; //simplified indices
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public VertexBuffer Verts;
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public IndexBuffer Indices;
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public int PrimCount;
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public void SComplete(GraphicsDevice gd)
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{
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Rendered = true;
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Verts?.Dispose();
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Indices?.Dispose();
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PrimCount = SIndices.Count / 3;
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if (PrimCount > 0)
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{
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Verts = new VertexBuffer(gd, typeof(DGRP3DVert), SVerts.Count, BufferUsage.None);
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Verts.SetData(SVerts.ToArray());
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Indices = new IndexBuffer(gd, IndexElementSize.ThirtyTwoBits, SIndices.Count, BufferUsage.None);
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Indices.SetData(SIndices.ToArray());
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}
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if (!IffFile.RETAIN_CHUNK_DATA)
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{
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SVerts = null;
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SIndices = null;
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}
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}
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public DGRP3DGeometry() { }
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public DGRP3DGeometry(IoBuffer io, DGRP source, GraphicsDevice gd, int Version)
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{
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PixelSPR = io.ReadUInt16();
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PixelDir = io.ReadUInt16();
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if (PixelDir == 65535)
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{
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CustomTexture = 1;
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if (source == null)
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{
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//temporary system for models without DGRP
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Pixel = ReplTextureProvider("FSO_TEX_" + PixelSPR + ".png");
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}
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else
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{
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var name = source.ChunkParent.Filename.Replace('.', '_').Replace("spf", "iff");
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name += "_TEX_" + PixelSPR + ".png";
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Pixel = ReplTextureProvider(name);
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if (Pixel == null)
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{
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Pixel = source.ChunkParent.Get<MTEX>(PixelSPR)?.GetTexture(gd);
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}
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}
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}
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else
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{
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Pixel = source.GetImage(1, 3, PixelDir).Sprites[PixelSPR].GetTexture(gd);
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}
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var vertCount = io.ReadInt32();
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SVerts = new List<DGRP3DVert>();
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if (Version > 1)
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{
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var bytes = io.ReadBytes(vertCount * Marshal.SizeOf(typeof(DGRP3DVert)));
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var readVerts = new DGRP3DVert[vertCount];
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var pinnedHandle = GCHandle.Alloc(readVerts, GCHandleType.Pinned);
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Marshal.Copy(bytes, 0, pinnedHandle.AddrOfPinnedObject(), bytes.Length);
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pinnedHandle.Free();
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SVerts = readVerts.ToList();
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}
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else
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{
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for (int i = 0; i < vertCount; i++)
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{
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var x = io.ReadFloat();
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var y = io.ReadFloat();
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var z = io.ReadFloat();
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var u = io.ReadFloat();
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var v = io.ReadFloat();
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var normal = new Vector3();
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SVerts.Add(new DGRP3DVert(new Vector3(x, y, z), normal, new Vector2(u, v)));
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}
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}
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var indexCount = io.ReadInt32();
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SIndices = ToTArray<int>(io.ReadBytes(indexCount * 4)).ToList();
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// bottom up triangle ordering. useful for trees.
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/*
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var triBase = new int[SIndices.Count / 3][];
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for (int i = 0; i < triBase.Length; i++) triBase[i] = new int[] { SIndices[i * 3], SIndices[i*3 + 1], SIndices[i * 3 + 2] };
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var ordered = triBase.OrderBy(x => SVerts[x[0]].Position.Y);
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SIndices.Clear();
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foreach (var item in ordered) SIndices.AddRange(item);
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*/
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if (Version < 2) GenerateNormals(false);
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SComplete(gd);
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}
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public DGRP3DGeometry(string[] splitName, OBJ obj, List<int[]> indices, DGRP source, GraphicsDevice gd)
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{
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if (splitName[1] == "SPR")
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{
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PixelSPR = ushort.Parse(splitName[3]);
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PixelDir = ushort.Parse(splitName[2].Substring(3));
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Pixel = source.GetImage(1, 3, PixelDir).Sprites[PixelSPR].GetTexture(gd);
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}
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else if (splitName[1] != "MASK")
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{
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PixelSPR = ushort.Parse(splitName[2]);
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CustomTexture = 1;
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PixelDir = 65535;
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var name = source.ChunkParent.Filename.Replace('.', '_').Replace("spf", "iff");
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name += "_TEX_" + PixelSPR + ".png";
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Pixel = ReplTextureProvider(name);
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if (Pixel == null)
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{
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Pixel = source.ChunkParent.Get<MTEX>(PixelSPR)?.GetTexture(gd);
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}
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}
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SVerts = new List<DGRP3DVert>();
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SIndices = new List<int>();
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var dict = new Dictionary<Tuple<int, int, int>, int>();
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var hasNormals = false;
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foreach (var ind in indices)
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{
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var tup = new Tuple<int, int, int>(ind[0], ind[1], (ind.Length > 2) ? ind[2] : -1);
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int targ;
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if (!dict.TryGetValue(tup, out targ))
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{
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//add a vertex
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targ = SVerts.Count;
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Vector3 normal = Vector3.Zero;
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if (tup.Item3 > -1)
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{
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normal = obj.Normals[tup.Item3 - 1];
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hasNormals = true;
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}
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var vert = new DGRP3DVert(obj.Vertices[ind[0] - 1], normal, obj.TextureCoords[ind[1] - 1]);
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vert.TextureCoordinate.Y = 1 - vert.TextureCoordinate.Y;
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SVerts.Add(vert);
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dict[tup] = targ;
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}
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SIndices.Add(targ);
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}
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if (!hasNormals) GenerateNormals(false);
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/*
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var triBase = new int[SIndices.Count / 3][];
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for (int i = 0; i < triBase.Length; i++) triBase[i] = new int[] { SIndices[i * 3], SIndices[i * 3 + 1], SIndices[i * 3 + 2] };
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var ordered = triBase.OrderBy(x => SVerts[x[0]].Position.Y + SVerts[x[1]].Position.Y + SVerts[x[2]].Position.Y);
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SIndices.Clear();
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foreach (var item in ordered) SIndices.AddRange(item);
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*/
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SComplete(gd);
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}
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public void GenerateNormals(bool invert)
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{
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DGRP3DVert.GenerateNormals(invert, SVerts, SIndices);
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}
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public void Save(IoWriter io)
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{
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io.WriteUInt16(PixelSPR);
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io.WriteUInt16(PixelDir);
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io.WriteInt32(SVerts.Count);
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foreach (var vert in SVerts)
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{
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io.WriteFloat(vert.Position.X);
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io.WriteFloat(vert.Position.Y);
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io.WriteFloat(vert.Position.Z);
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io.WriteFloat(vert.TextureCoordinate.X);
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io.WriteFloat(vert.TextureCoordinate.Y);
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io.WriteFloat(vert.Normal.X);
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io.WriteFloat(vert.Normal.Y);
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io.WriteFloat(vert.Normal.Z);
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}
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io.WriteInt32(SIndices.Count);
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io.WriteBytes(ToByteArray(SIndices.ToArray()));
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}
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private string GetOName(int dyn)
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{
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if (CustomTexture == 0)
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{
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return dyn + "_SPR_rot" + PixelDir + "_" + PixelSPR;
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}
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else
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{
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return dyn + "_TEX_" + PixelSPR;
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}
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}
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public void SaveOBJ(StreamWriter io, int dyn, ref int baseInd)
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{
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string o_name = GetOName(dyn);
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io.WriteLine("usemtl " + o_name);
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io.WriteLine("o " + o_name);
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foreach (var vert in SVerts)
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{
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io.WriteLine("v " + vert.Position.X.ToString(CultureInfo.InvariantCulture) + " " + vert.Position.Y.ToString(CultureInfo.InvariantCulture) + " " + vert.Position.Z.ToString(CultureInfo.InvariantCulture));
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}
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foreach (var vert in SVerts)
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{
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io.WriteLine("vt " + vert.TextureCoordinate.X.ToString(CultureInfo.InvariantCulture) + " " + (1 - vert.TextureCoordinate.Y).ToString(CultureInfo.InvariantCulture));
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}
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foreach (var vert in SVerts)
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{
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io.WriteLine("vn " + vert.Normal.X.ToString(CultureInfo.InvariantCulture) + " " + vert.Normal.Y.ToString(CultureInfo.InvariantCulture) + " " + vert.Normal.Z.ToString(CultureInfo.InvariantCulture));
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}
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io.Write("f ");
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var ticker = 0;
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var j = 0;
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foreach (var ind in SIndices)
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{
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var i = ind + baseInd;
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io.Write(i + "/" + i + "/" + i + " ");
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if (++ticker == 3)
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{
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io.WriteLine("");
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if (j < SIndices.Count - 1) io.Write("f ");
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ticker = 0;
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}
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j++;
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}
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baseInd += SVerts.Count;
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}
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public void SaveMTL(StreamWriter io, int dyn, string path)
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{
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var oname = GetOName(dyn);
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if (Pixel != null)
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{
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Common.Utils.GameThread.NextUpdate(x =>
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{
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try
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{
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using (var io2 = File.Open(Path.Combine(path, oname + ".png"), FileMode.Create))
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Pixel.SaveAsPng(io2, Pixel.Width, Pixel.Height);
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}
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catch (Exception e)
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{
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}
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});
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}
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io.WriteLine("newmtl " + oname);
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io.WriteLine("Ka 1.000 1.000 1.000");
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io.WriteLine("Kd 1.000 1.000 1.000");
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io.WriteLine("Ks 0.000 0.000 0.000");
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io.WriteLine("Ns 10.0000");
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io.WriteLine("illum 2");
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io.WriteLine("map_Kd " + oname + ".png");
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io.WriteLine("map_d " + oname + ".png");
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}
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public void Dispose()
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{
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Verts?.Dispose();
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Indices?.Dispose();
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}
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private static T[] ToTArray<T>(byte[] input)
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{
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var result = new T[input.Length / Marshal.SizeOf(typeof(T))];
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Buffer.BlockCopy(input, 0, result, 0, input.Length);
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return result;
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}
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private static byte[] ToByteArray<T>(T[] input)
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{
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var result = new byte[input.Length * Marshal.SizeOf(typeof(T))];
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Buffer.BlockCopy(input, 0, result, 0, result.Length);
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return result;
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}
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}
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}
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