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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#ifndef SPRING_3DOPARSER_H
#define SPRING_3DOPARSER_H
#include "3DModel.h"
#include "IModelParser.h"
#include "System/float3.h"
#include "Rendering/Textures/3DOTextureHandler.h"
#include <vector>
#include <string>
#include <set>
struct S3DOVertex
{
S3DOVertex(float3 p, float3 n, float2 t)
: pos(p), normal(n), texCoord(t) {}
float3 pos;
float3 normal;
float2 texCoord;
};
struct S3DOPrimitive
{
std::vector<int> indices; ///< indices to S3DOPiece::vertexPos
std::vector<float3> vnormals; ///< per-vertex normals
// the raw normal for this primitive (-v0v1.cross(v0v2))
// used iff we have less than 3 or more than 4 vertices
float3 primNormal;
C3DOTextureHandler::UnitTexture* texture;
};
struct S3DOPiece: public S3DModelPiece
{
void UploadGeometryVBOs() override;
void DrawForList() const override;
unsigned int GetVertexCount() const override { return vboAttributes.GetSize(); }
unsigned int GetVertexDrawIndexCount() const override { return vboIndices.GetSize(); }
const float3& GetVertexPos(const int idx) const override { return vertexAttribs[idx].pos; }
const float3& GetNormal(const int idx) const override { return vertexAttribs[idx].normal; }
const std::vector<unsigned>& GetVertexIndices() const override { return vertexIndices; }
float3 GetEmitPos() const override { return emitPos; }
float3 GetEmitDir() const override { return emitDir; }
void BindVertexAttribVBOs() const override;
void UnbindVertexAttribVBOs() const override;
public:
void SetMinMaxExtends();
void CalcNormals();
public:
std::vector<float3> vertexPos; //FIXME
std::vector<S3DOPrimitive> prims;
float3 emitPos;
float3 emitDir;
std::vector<S3DOVertex> vertexAttribs;
std::vector<unsigned int> vertexIndices;
};
class C3DOParser: public IModelParser
{
public:
typedef struct _3DObject
{
int VersionSignature;
int NumberOfVertices;
int NumberOfPrimitives;
int SelectionPrimitive;
int XFromParent;
int YFromParent;
int ZFromParent;
int OffsetToObjectName;
int Always_0;
int OffsetToVertexArray;
int OffsetToPrimitiveArray;
int OffsetToSiblingObject;
int OffsetToChildObject;
} _3DObject;
typedef struct _Primitive
{
int PaletteEntry;
int NumberOfVertexIndexes;
int Always_0;
int OffsetToVertexIndexArray;
int OffsetToTextureName;
int Unknown_1;
int Unknown_2;
int Unknown_3;
} _Primitive;
public:
C3DOParser();
S3DModel* Load(const std::string& name);
private:
S3DOPiece* LoadPiece(S3DModel* model, int pos, S3DOPiece* parent, int* numobj, const std::vector<unsigned char>& fileBuf);
C3DOTextureHandler::UnitTexture* GetTexture(S3DOPiece* obj, _Primitive* p, const std::vector<unsigned char>& fileBuf) const;
static bool IsBasePlate(S3DOPiece* obj, S3DOPrimitive* face);
void GetPrimitives(S3DOPiece* obj, int pos, int num, int excludePrim, const std::vector<unsigned char>& fileBuf);
void GetVertexes(_3DObject* o, S3DOPiece* object, const std::vector<unsigned char>& fileBuf);
private:
std::set<std::string> teamtex;
};
#endif // SPRING_3DOPARSER_H
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