mirror of
https://github.com/DarkflameUniverse/DarkflameServer.git
synced 2025-12-12 11:08:27 +00:00
accdb4f9a1
added option to automatically write the raw obj file Added scene colors to the obj use proper scene colors from hf
404 lines
12 KiB
C++
404 lines
12 KiB
C++
#include "Raw.h"
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#include "BinaryIO.h"
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#include "Logger.h"
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#include "SceneColor.h"
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#include <fstream>
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#include <algorithm>
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namespace Raw {
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/**
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* @brief Read flair attributes from stream
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*/
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static bool ReadFlairAttributes(std::istream& stream, FlairAttributes& flair) {
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try {
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BinaryIO::BinaryRead(stream, flair.id);
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BinaryIO::BinaryRead(stream, flair.scaleFactor);
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BinaryIO::BinaryRead(stream, flair.position.x);
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BinaryIO::BinaryRead(stream, flair.position.y);
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BinaryIO::BinaryRead(stream, flair.position.z);
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BinaryIO::BinaryRead(stream, flair.rotation.x);
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BinaryIO::BinaryRead(stream, flair.rotation.y);
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BinaryIO::BinaryRead(stream, flair.rotation.z);
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BinaryIO::BinaryRead(stream, flair.colorR);
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BinaryIO::BinaryRead(stream, flair.colorG);
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BinaryIO::BinaryRead(stream, flair.colorB);
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BinaryIO::BinaryRead(stream, flair.colorA);
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return true;
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} catch (const std::exception&) {
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return false;
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}
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}
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/**
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* @brief Read mesh triangle data from stream
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*/
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static bool ReadMeshTri(std::istream& stream, MeshTri& meshTri) {
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try {
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BinaryIO::BinaryRead(stream, meshTri.meshTriListSize);
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meshTri.meshTriList.resize(meshTri.meshTriListSize);
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for (uint16_t i = 0; i < meshTri.meshTriListSize; ++i) {
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BinaryIO::BinaryRead(stream, meshTri.meshTriList[i]);
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}
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return true;
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} catch (const std::exception&) {
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return false;
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}
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}
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/**
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* @brief Read a chunk from stream
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*/
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static bool ReadChunk(std::istream& stream, Chunk& chunk, uint16_t version) {
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try {
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// Read basic chunk info
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BinaryIO::BinaryRead(stream, chunk.id);
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if (stream.fail()) {
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return false;
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}
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BinaryIO::BinaryRead(stream, chunk.width);
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BinaryIO::BinaryRead(stream, chunk.height);
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BinaryIO::BinaryRead(stream, chunk.offsetWorldX);
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BinaryIO::BinaryRead(stream, chunk.offsetWorldZ);
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if (stream.fail()) {
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return false;
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}
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// For version < 32, shader ID comes before texture IDs
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if (version < 32) {
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BinaryIO::BinaryRead(stream, chunk.shaderId);
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}
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// Read texture IDs (4 textures)
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chunk.textureIds.resize(4);
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for (int i = 0; i < 4; ++i) {
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BinaryIO::BinaryRead(stream, chunk.textureIds[i]);
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}
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if (stream.fail()) {
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return false;
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}
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// Read scale factor
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BinaryIO::BinaryRead(stream, chunk.scaleFactor);
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if (stream.fail()) {
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return false;
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}
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// Read heightmap
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uint32_t heightMapSize = chunk.width * chunk.height;
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chunk.heightMap.resize(heightMapSize);
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for (uint32_t i = 0; i < heightMapSize; ++i) {
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BinaryIO::BinaryRead(stream, chunk.heightMap[i]);
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}
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if (stream.fail()) {
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return false;
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}
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// ColorMap (size varies by version)
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if (version >= 32) {
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BinaryIO::BinaryRead(stream, chunk.colorMapResolution);
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} else {
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chunk.colorMapResolution = chunk.width; // Default to chunk width for older versions
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}
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uint32_t colorMapPixelCount = chunk.colorMapResolution * chunk.colorMapResolution * 4; // RGBA
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chunk.colorMap.resize(colorMapPixelCount);
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stream.read(reinterpret_cast<char*>(chunk.colorMap.data()), colorMapPixelCount);
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if (stream.fail()) {
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return false;
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}
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// LightMap DDS
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uint32_t lightMapSize;
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BinaryIO::BinaryRead(stream, lightMapSize);
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chunk.lightMap.resize(lightMapSize);
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stream.read(reinterpret_cast<char*>(chunk.lightMap.data()), lightMapSize);
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if (stream.fail()) {
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return false;
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}
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// TextureMap (size varies by version)
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if (version >= 32) {
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BinaryIO::BinaryRead(stream, chunk.textureMapResolution);
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} else {
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chunk.textureMapResolution = chunk.width; // Default to chunk width for older versions
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}
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uint32_t textureMapPixelCount = chunk.textureMapResolution * chunk.textureMapResolution * 4;
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chunk.textureMap.resize(textureMapPixelCount);
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stream.read(reinterpret_cast<char*>(chunk.textureMap.data()), textureMapPixelCount);
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if (stream.fail()) {
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return false;
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}
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// Texture settings
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BinaryIO::BinaryRead(stream, chunk.textureSettings);
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// Blend map DDS
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uint32_t blendMapDDSSize;
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BinaryIO::BinaryRead(stream, blendMapDDSSize);
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chunk.blendMap.resize(blendMapDDSSize);
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stream.read(reinterpret_cast<char*>(chunk.blendMap.data()), blendMapDDSSize);
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if (stream.fail()) {
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return false;
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}
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// Read flairs
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uint32_t numFlairs;
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BinaryIO::BinaryRead(stream, numFlairs);
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if (stream.fail()) {
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return false;
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}
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chunk.flairs.resize(numFlairs);
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for (uint32_t i = 0; i < numFlairs; ++i) {
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if (!ReadFlairAttributes(stream, chunk.flairs[i])) {
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return false;
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}
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}
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// Scene map (version 32+ only)
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if (version >= 32) {
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uint32_t sceneMapSize = chunk.colorMapResolution * chunk.colorMapResolution;
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chunk.sceneMap.resize(sceneMapSize);
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stream.read(reinterpret_cast<char*>(chunk.sceneMap.data()), sceneMapSize);
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if (stream.fail()) {
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return false;
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}
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}
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// Mesh vertex usage (read size first, then check if empty)
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BinaryIO::BinaryRead(stream, chunk.vertSize);
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if (stream.fail()) {
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return false;
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}
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// Mesh vert usage
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chunk.meshVertUsage.resize(chunk.vertSize);
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for (uint32_t i = 0; i < chunk.vertSize; ++i) {
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BinaryIO::BinaryRead(stream, chunk.meshVertUsage[i]);
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}
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if (stream.fail()) {
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return false;
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}
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// Only continue with mesh data if we have vertex usage data
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if (chunk.vertSize == 0) {
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return true;
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}
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// Mesh vert size (16 elements)
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chunk.meshVertSize.resize(16);
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for (int i = 0; i < 16; ++i) {
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BinaryIO::BinaryRead(stream, chunk.meshVertSize[i]);
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}
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if (stream.fail()) {
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return false;
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}
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// Mesh triangles (16 elements)
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chunk.meshTri.resize(16);
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for (int i = 0; i < 16; ++i) {
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if (!ReadMeshTri(stream, chunk.meshTri[i])) {
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return false;
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}
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}
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return true;
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} catch (const std::exception&) {
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return false;
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}
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}
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bool ReadRaw(std::istream& stream, Raw& outRaw) {
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// Get stream size
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stream.seekg(0, std::ios::end);
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auto streamSize = stream.tellg();
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stream.seekg(0, std::ios::beg);
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if (streamSize <= 0) {
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return false;
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}
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try {
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// Read header
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BinaryIO::BinaryRead(stream, outRaw.version);
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if (stream.fail()) {
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return false;
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}
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BinaryIO::BinaryRead(stream, outRaw.dev);
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if (stream.fail()) {
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return false;
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}
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// Only read chunks if dev == 0
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if (outRaw.dev == 0) {
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BinaryIO::BinaryRead(stream, outRaw.numChunks);
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BinaryIO::BinaryRead(stream, outRaw.numChunksWidth);
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BinaryIO::BinaryRead(stream, outRaw.numChunksHeight);
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// Read all chunks
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outRaw.chunks.resize(outRaw.numChunks);
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for (uint32_t i = 0; i < outRaw.numChunks; ++i) {
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if (!ReadChunk(stream, outRaw.chunks[i], outRaw.version)) {
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return false;
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}
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}
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}
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return true;
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} catch (const std::exception&) {
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return false;
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}
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}
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void GenerateTerrainMesh(const Raw& raw, TerrainMesh& outMesh) {
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outMesh.vertices.clear();
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outMesh.triangles.clear();
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if (raw.chunks.empty() || raw.version < 32) {
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return; // No scene data available
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}
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LOG("GenerateTerrainMesh: Processing %u chunks", raw.chunks.size());
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uint32_t vertexOffset = 0;
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for (const auto& chunk : raw.chunks) {
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// Skip chunks without scene maps
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if (chunk.sceneMap.empty() || chunk.colorMapResolution == 0 || chunk.heightMap.empty()) {
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LOG("Skipping chunk %u (sceneMap: %zu, colorMapRes: %u, heightMap: %zu)",
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chunk.id, chunk.sceneMap.size(), chunk.colorMapResolution, chunk.heightMap.size());
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continue;
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}
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LOG("Processing chunk %u: width=%u, height=%u, colorMapRes=%u, sceneMapSize=%zu",
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chunk.id, chunk.width, chunk.height, chunk.colorMapResolution, chunk.sceneMap.size());
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// Generate vertices for this chunk
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for (uint32_t i = 0; i < chunk.width; ++i) {
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for (uint32_t j = 0; j < chunk.height; ++j) {
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// Get height at this position
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const uint32_t heightIndex = chunk.width * i + j;
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if (heightIndex >= chunk.heightMap.size()) continue;
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const float y = chunk.heightMap[heightIndex];
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// Calculate world position
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// Based on RawFile::GenerateFinalMeshFromChunks in dTerrain:
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// tempVert.SetX(tempVert.GetX() + (chunk->m_X / chunk->m_HeightMap->m_ScaleFactor));
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// tempVert.SetY(tempVert.GetY() / chunk->m_HeightMap->m_ScaleFactor);
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// tempVert.SetZ(tempVert.GetZ() + (chunk->m_Z / chunk->m_HeightMap->m_ScaleFactor));
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// tempVert *= chunk->m_HeightMap->m_ScaleFactor;
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float worldX = (static_cast<float>(i) + (chunk.offsetWorldX / chunk.scaleFactor)) * chunk.scaleFactor;
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float worldY = (y / chunk.scaleFactor) * chunk.scaleFactor;
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float worldZ = (static_cast<float>(j) + (chunk.offsetWorldZ / chunk.scaleFactor)) * chunk.scaleFactor;
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NiPoint3 worldPos(worldX, worldY, worldZ);
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// Get scene ID at this position
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// Map heightmap position to scene map position
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// The scene map is colorMapResolution x colorMapResolution
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// We need to map from heightmap coordinates (i, j) to scene map coordinates
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const float sceneMapI = (static_cast<float>(i) / static_cast<float>(chunk.width - 1)) * static_cast<float>(chunk.colorMapResolution - 1);
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const float sceneMapJ = (static_cast<float>(j) / static_cast<float>(chunk.height - 1)) * static_cast<float>(chunk.colorMapResolution - 1);
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const uint32_t sceneI = std::min(static_cast<uint32_t>(sceneMapI), chunk.colorMapResolution - 1);
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const uint32_t sceneJ = std::min(static_cast<uint32_t>(sceneMapJ), chunk.colorMapResolution - 1);
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// Scene map uses the same indexing pattern as heightmap: row * width + col
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const uint32_t sceneIndex = sceneI * chunk.colorMapResolution + sceneJ;
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uint8_t sceneID = 0;
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if (sceneIndex < chunk.sceneMap.size()) {
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sceneID = chunk.sceneMap[sceneIndex];
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}
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outMesh.vertices.emplace_back(worldPos, sceneID);
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// Generate triangles (same pattern as dTerrain)
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if (i > 0 && j > 0) {
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const uint32_t currentVert = vertexOffset + chunk.width * i + j;
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const uint32_t leftVert = currentVert - 1;
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const uint32_t bottomLeftVert = vertexOffset + chunk.width * (i - 1) + j - 1;
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const uint32_t bottomVert = vertexOffset + chunk.width * (i - 1) + j;
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// First triangle
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outMesh.triangles.push_back(currentVert);
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outMesh.triangles.push_back(leftVert);
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outMesh.triangles.push_back(bottomLeftVert);
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// Second triangle
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outMesh.triangles.push_back(bottomLeftVert);
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outMesh.triangles.push_back(bottomVert);
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outMesh.triangles.push_back(currentVert);
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}
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}
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}
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vertexOffset += chunk.width * chunk.height;
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}
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}
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bool WriteTerrainMeshToOBJ(const TerrainMesh& mesh, const std::string& path) {
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try {
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std::ofstream file(path);
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if (!file.is_open()) {
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LOG("Failed to open OBJ file for writing: %s", path.c_str());
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return false;
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}
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// Create instance of SceneColor for color lookup
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SceneColor sceneColor;
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// Write vertices with colors
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// OBJ format supports vertex colors as: v x y z r g b
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for (const auto& v : mesh.vertices) {
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file << "v " << v.position.x << ' ' << v.position.y << ' ' << v.position.z;
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uint8_t sceneID = v.sceneID;
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const NiColor& color = sceneColor.Get(sceneID);
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file << ' ' << color.m_Red << ' ' << color.m_Green << ' ' << color.m_Blue;
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file << '\n';
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}
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// Write faces (triangles)
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for (size_t i = 0; i < mesh.triangles.size(); i += 3) {
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// OBJ indices are 1-based
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file << "f " << (mesh.triangles[i] + 1) << ' '
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<< (mesh.triangles[i + 1] + 1) << ' '
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<< (mesh.triangles[i + 2] + 1) << '\n';
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}
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file.close();
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LOG("Successfully wrote terrain mesh to OBJ: %s (%zu vertices, %zu triangles)",
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path.c_str(), mesh.vertices.size(), mesh.triangles.size() / 3);
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return true;
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} catch (const std::exception& e) {
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LOG("Exception while writing OBJ file: %s", e.what());
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return false;
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}
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}
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} // namespace Raw
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