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/*
* This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _MMAP_TERRAIN_BUILDER_H
#define _MMAP_TERRAIN_BUILDER_H
#include "PathCommon.h"
#include "WorldModel.h"
#include <G3D/Array.h>
#include <G3D/Vector3.h>
enum class map_liquidHeaderTypeFlags : uint8;
namespace MMAP
{
enum Spot
{
TOP = 1,
RIGHT = 2,
LEFT = 3,
BOTTOM = 4,
ENTIRE = 5
};
enum Grid
{
GRID_V8,
GRID_V9
};
static const int V9_SIZE = 129;
static const int V9_SIZE_SQ = V9_SIZE*V9_SIZE;
static const int V8_SIZE = 128;
static const int V8_SIZE_SQ = V8_SIZE*V8_SIZE;
static const float GRID_SIZE = 533.3333f;
static const float GRID_PART_SIZE = GRID_SIZE/V8_SIZE;
// see contrib/extractor/system.cpp, CONF_use_minHeight
static const float INVALID_MAP_LIQ_HEIGHT = -2000.f;
static const float INVALID_MAP_LIQ_HEIGHT_MAX = 5000.0f;
// see following files:
// contrib/extractor/system.cpp
// src/game/Map.cpp
struct OffMeshData
{
uint32 MapId;
uint32 TileX;
uint32 TileY;
float From[3];
float To[3];
bool Bidirectional;
float Radius;
uint8 AreaId;
uint16 Flags;
};
struct MeshData
{
G3D::Array<float> solidVerts;
G3D::Array<int> solidTris;
G3D::Array<float> liquidVerts;
G3D::Array<int> liquidTris;
G3D::Array<uint8> liquidType;
// offmesh connection data
G3D::Array<float> offMeshConnections; // [p0y,p0z,p0x,p1y,p1z,p1x] - per connection
G3D::Array<float> offMeshConnectionRads;
G3D::Array<unsigned char> offMeshConnectionDirs;
G3D::Array<unsigned char> offMeshConnectionsAreas;
G3D::Array<unsigned short> offMeshConnectionsFlags;
};
class TerrainBuilder
{
public:
TerrainBuilder(bool skipLiquid);
~TerrainBuilder();
void loadMap(uint32 mapID, uint32 tileX, uint32 tileY, MeshData &meshData);
bool loadVMap(uint32 mapID, uint32 tileX, uint32 tileY, MeshData &meshData);
void loadOffMeshConnections(uint32 mapID, uint32 tileX, uint32 tileY, MeshData& meshData, std::vector<OffMeshData> const& offMeshConnections);
bool usesLiquids() const { return !m_skipLiquid; }
// vert and triangle methods
static void transform(std::vector<G3D::Vector3> const& source, std::vector<G3D::Vector3>& transformed,
float scale, G3D::Matrix3 const& rotation, G3D::Vector3 const& position);
static void copyVertices(std::vector<G3D::Vector3> const& source, G3D::Array<float>& dest);
static void copyIndices(std::vector<VMAP::MeshTriangle> const& source, G3D::Array<int>& dest, int offset, bool flip);
static void copyIndices(G3D::Array<int> const& source, G3D::Array<int>& dest, int offset);
static void cleanVertices(G3D::Array<float> &verts, G3D::Array<int> &tris);
private:
/// Loads a portion of a map's terrain
bool loadMap(uint32 mapID, uint32 tileX, uint32 tileY, MeshData &meshData, Spot portion);
/// Sets loop variables for selecting only certain parts of a map's terrain
void getLoopVars(Spot portion, int &loopStart, int &loopEnd, int &loopInc);
/// Controls whether liquids are loaded
bool m_skipLiquid;
/// Load the map terrain from file
bool loadHeightMap(uint32 mapID, uint32 tileX, uint32 tileY, G3D::Array<float> &vertices, G3D::Array<int> &triangles, Spot portion);
/// Get the vector coordinate for a specific position
void getHeightCoord(int index, Grid grid, float xOffset, float yOffset, float* coord, float* v);
/// Get the triangle's vector indices for a specific position
void getHeightTriangle(int square, Spot triangle, int* indices, bool liquid = false);
/// Determines if the specific position's triangles should be rendered
bool isHole(int square, uint8 const holes[16][16][8]);
/// Get the liquid vector coordinate for a specific position
void getLiquidCoord(int index, int index2, float xOffset, float yOffset, float* coord, float* v);
/// Get the liquid type for a specific position
map_liquidHeaderTypeFlags getLiquidType(int square, map_liquidHeaderTypeFlags const (&liquid_type)[16][16]);
// hide parameterless and copy constructor
TerrainBuilder() = delete;
TerrainBuilder(TerrainBuilder const& tb) = delete;
};
}
#endif
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