leocad/common/lc_mesh.h
2024-12-20 13:14:38 -08:00

138 lines
3.4 KiB
C++

#pragma once
#include "lc_math.h"
enum lcMeshPrimitiveType
{
LC_MESH_LINES = 0x01,
LC_MESH_TRIANGLES = 0x02,
LC_MESH_TEXTURED_TRIANGLES = 0x08,
LC_MESH_CONDITIONAL_LINES = 0x10,
LC_MESH_NUM_PRIMITIVE_TYPES
};
struct lcVertex
{
lcVector3 Position;
quint32 Normal;
};
struct lcVertexTextured
{
lcVector3 Position;
quint32 Normal;
lcVector2 TexCoord;
};
struct lcVertexConditional
{
lcVector3 Position1;
lcVector3 Position2;
lcVector3 Position3;
lcVector3 Position4;
};
struct lcMeshSection
{
int ColorIndex;
int IndexOffset;
int NumIndices;
lcMeshPrimitiveType PrimitiveType;
lcTexture* Texture;
lcBoundingBox BoundingBox;
float Radius;
};
struct lcMeshLod
{
lcMeshSection* Sections = nullptr;
int NumSections = 0;
};
enum
{
LC_MESH_LOD_HIGH,
LC_MESH_LOD_LOW,
LC_NUM_MESH_LODS
};
enum class lcMeshFlag
{
HasDefault = 0x01, // Mesh has triangles using the default color
HasSolid = 0x02, // Mesh has triangles using a solid color
HasTranslucent = 0x04, // Mesh has triangles using a translucent color
HasLines = 0x08, // Mesh has lines
HasTexture = 0x10, // Mesh has sections using textures
HasStyleStud = 0x20 // Mesh has a stud that can have a logo applied
};
Q_DECLARE_FLAGS(lcMeshFlags, lcMeshFlag)
Q_DECLARE_OPERATORS_FOR_FLAGS(lcMeshFlags)
class lcMesh
{
public:
lcMesh();
~lcMesh();
lcMesh(const lcMesh&) = delete;
lcMesh(lcMesh&&) = delete;
lcMesh& operator=(const lcMesh&) = delete;
lcMesh& operator=(lcMesh&&) = delete;
void Create(quint16 (&NumSections)[LC_NUM_MESH_LODS], int VertexCount, int TexturedVertexCount, int ConditionalVertexCount, int IndexCount);
void CreateBox();
bool FileLoad(lcMemFile& File);
bool FileSave(lcMemFile& File);
template<typename IndexType>
void ExportPOVRay(lcFile& File, const char* MeshName, const char** ColorTable);
void ExportPOVRay(lcFile& File, const char* MeshName, const char** ColorTable);
template<typename IndexType>
void ExportWavefrontIndices(lcFile& File, int DefaultColorIndex, int VertexOffset);
void ExportWavefrontIndices(lcFile& File, int DefaultColorIndex, int VertexOffset);
template<typename IndexType>
bool MinIntersectDist(const lcVector3& Start, const lcVector3& End, float& MinDist, lcVector3& HitPlane);
bool MinIntersectDist(const lcVector3& Start, const lcVector3& End, float& MinDist, lcVector3& HitPlane);
template<typename IndexType>
bool IntersectsPlanes(const lcVector4 (&Planes)[6]);
bool IntersectsPlanes(const lcVector4 (&Planes)[6]);
int GetLodIndex(float Distance) const;
const lcVertex* GetVertexData() const
{
return static_cast<lcVertex*>(mVertexData);
}
const lcVertexTextured* GetTexturedVertexData() const
{
return reinterpret_cast<lcVertexTextured*>(static_cast<char*>(mVertexData) + mNumVertices * sizeof(lcVertex));
}
const lcVertexConditional* GetConditionalVertexData() const
{
return reinterpret_cast<lcVertexConditional*>(static_cast<char*>(mVertexData) + mNumVertices * sizeof(lcVertex) + mNumTexturedVertices * sizeof(lcVertexTextured));
}
lcMeshLod mLods[LC_NUM_MESH_LODS];
lcBoundingBox mBoundingBox;
float mRadius = 0.0f;
lcMeshFlags mFlags;
void* mVertexData = nullptr;
int mVertexDataSize = 0;
void* mIndexData = nullptr;
int mIndexDataSize = 0;
int mVertexCacheOffset = -1;
int mIndexCacheOffset = -1;
int mNumVertices = 0;
int mNumTexturedVertices = 0;
int mConditionalVertexCount = 0;
int mIndexType = 0;
};