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#pragma once
#include "Configuration/UnityConfigure.h"
#if ENABLE_TERRAIN
#include "Runtime/Geometry/AABB.h"
#include "Runtime/BaseClasses/GameObject.h"
#include "Runtime/Math/Color.h"
#include "Runtime/Graphics/Texture2D.h"
#include "Runtime/Math/Random/rand.h"
#include "Runtime/Math/Rect.h"
#include <vector>
#include "TreeDatabase.h"
class TerrainData;
class Heightmap;
class Mesh;
using std::vector;
struct DetailPatch
{
public:
DECLARE_SERIALIZE (DetailPatch)
AABB bounds;
bool dirty;
vector<UInt8> layerIndices;
vector<UInt8> numberOfObjects;
DetailPatch () { dirty = false; }
};
template<class TransferFunc>
void DetailPatch::Transfer (TransferFunc& transfer)
{
TRANSFER (bounds);
TRANSFER (layerIndices);
TRANSFER (numberOfObjects);
}
enum DetailRenderMode
{
kDetailBillboard = 0, // billboard
kDetailMeshLit, // just a mesh, lit like everything else
kDetailMeshGrass, // mesh (user supplied or generated grass crosses), waves in the wind
kDetailRenderModeCount
};
struct DetailPrototype
{
DECLARE_SERIALIZE (DetailPrototype)
PPtr<GameObject> prototype;
PPtr<Texture2D> prototypeTexture;
float minWidth, maxWidth; ///< Width of the grass billboards (if renderMode is grassBillboard)
float minHeight, maxHeight; ///< Height of the grass billboards (if renderMode is grassBillboard)
float noiseSpread;
float bendFactor;
ColorRGBAf healthyColor;
ColorRGBAf dryColor;
float lightmapFactor;
int renderMode;
int usePrototypeMesh;
vector<Vector3f> vertices;
vector<Vector3f> normals;
vector<Vector2f> uvs;
vector<ColorRGBA32> colors;
vector<UInt16> triangles;
DetailPrototype () :
healthyColor (67/255.0F, 249/255.0F, 42/255.0F, 1 ),
dryColor(205/255.0F, 188/255.0F, 26/255.0F, 1.0F )
{
minWidth = 1.0F;
maxWidth = 2.0F;
minHeight = 1.0F;
maxHeight = 2.0F;
noiseSpread = 10.0F;
bendFactor = 1.0F;
lightmapFactor = 1.0F;
renderMode = kDetailMeshGrass;
usePrototypeMesh = false;
}
};
template<class TransferFunc>
void DetailPrototype::Transfer (TransferFunc& transfer)
{
transfer.SetVersion(2);
TRANSFER (prototype);
TRANSFER (prototypeTexture);
TRANSFER (minWidth);
TRANSFER (maxWidth);
TRANSFER (minHeight);
TRANSFER (maxHeight);
TRANSFER (noiseSpread);
TRANSFER (bendFactor);
TRANSFER (healthyColor);
TRANSFER (dryColor);
TRANSFER (lightmapFactor);
TRANSFER (renderMode);
TRANSFER (usePrototypeMesh);
if (transfer.IsOldVersion(1))
{
if (prototype)
usePrototypeMesh = 1;
else
usePrototypeMesh = 0;
}
}
class DetailDatabase
{
public:
DetailDatabase (TerrainData* terrainData, TreeDatabase* treeDatabase);
~DetailDatabase ();
DECLARE_SERIALIZE (DetailDatabase)
Texture2D* GetAtlasTexture () { return m_AtlasTexture; }
GET_SET (ColorRGBAf, WavingGrassTint, m_WavingGrassTint);
GET_SET (float, WavingGrassStrength, m_WavingGrassStrength);
GET_SET (float, WavingGrassAmount, m_WavingGrassAmount);
GET_SET (float, WavingGrassSpeed, m_WavingGrassSpeed);
int GetPatchCount () const { return m_PatchCount; }
const vector<DetailPrototype> &GetDetailPrototypes () const { return m_DetailPrototypes; }
void SetDetailPrototypes (const vector<DetailPrototype> &treePrototypes );
void RemoveDetailPrototype (int index);
void SetDetailResolution (int resolution, int resolutionPerPatch);
void ResetDirtyDetails ();
void SetDetailPrototypesDirty ();
void UpdateDetailPrototypesIfDirty ();
void GenerateTextureAtlasThreaded ();
void SetDirty ();
int GetWidth () const { return GetResolution (); }
int GetHeight () const { return GetResolution (); }
int GetResolution () const { return m_PatchSamples * m_PatchCount; }
int GetResolutionPerPatch () const { return m_PatchSamples; }
int GetSupportedLayers (int xBase, int yBase, int totalWidth, int totalHeight, int *buffer) const;
void GetLayer (int xBase, int yBase, int totalWidth, int totalHeight, int detailIndex, int *buffer) const;
void SetLayer (int xBase, int yBase, int totalWidth, int totalHeight, int detailIndex, const int *buffer);
int GetIndex (int x, int y, int l) const
{
int res = m_PatchSamples;
int nbIndex = y * res + x + l * res * res;
return nbIndex;
}
void RefreshPrototypes ();
Rectf GetNormalizedArea (int x, int y) const
{
float fx = (float)x / m_PatchCount;
float fy = (float)y / m_PatchCount;
float size = 1.0F / m_PatchCount;
return Rectf (fx, fy, size, size);
}
// void GenerateBounds (DetailPatch &patch, int patchX, int patchY);
Mesh* BuildMesh (int patchX, int patchY, Vector3f size, int lightmapIndex, DetailRenderMode renderMode, float density);
bool IsPatchEmpty (int x, int y) const;
bool IsPatchDirty (int x, int y) const;
private:
void GenerateMesh (Mesh& mesh, int patchX, int patchY, Vector3f size, int lightmapIndex, DetailRenderMode renderMode, float density, int totalVertexCount, int totalTriangleCount);
#if UNITY_EDITOR
void SetupPreloadTextureAtlasData ();
#endif
void RefreshPrototypesStep1 (Texture2D** sourceTextures);
void CleanupPrototype (DetailPrototype &proto, string const& error);
void ComputeVertexAndTriangleCount(DetailPatch &patch, DetailRenderMode renderMode, float density, int* vertexCount, int* triangleCount);
static int GetActualResolution (int resolution, int heightmapResolution);
int AddLayerIndex (int detailIndex, DetailPatch &patch);
void RemoveLocalLayerIndex (int detailIndex, DetailPatch& patch);
const DetailPatch& GetPatch (int x, int y) const { return m_Patches[y * m_PatchCount + x]; }
DetailPatch& GetPatch (int x, int y) { return m_Patches[y * m_PatchCount + x]; }
bool m_IsPrototypesDirty;
vector<DetailPatch> m_Patches;
vector<DetailPrototype> m_DetailPrototypes;
TerrainData* m_TerrainData;
TreeDatabase* m_TreeDatabase;
int m_PatchCount;
int m_PatchSamples;
vector<Vector3f> m_RandomRotations;
Texture2D* m_AtlasTexture;
ColorRGBAf m_WavingGrassTint;
float m_WavingGrassStrength;
float m_WavingGrassAmount;
float m_WavingGrassSpeed;
Rand m_Random;
vector<PPtr<Texture2D> > m_PreloadTextureAtlasData;
vector<Rectf> m_PreloadTextureAtlasUVLayout;
};
template<class TransferFunc>
void DetailDatabase::Transfer (TransferFunc& transfer)
{
TRANSFER (m_Patches);
TRANSFER (m_DetailPrototypes);
TRANSFER (m_PatchCount);
TRANSFER (m_PatchSamples);
TRANSFER (m_RandomRotations);
transfer.Transfer( m_WavingGrassTint, "WavingGrassTint" );
TRANSFER (m_WavingGrassStrength);
TRANSFER (m_WavingGrassAmount);
TRANSFER (m_WavingGrassSpeed);
transfer.Transfer (m_TreeDatabase->GetInstances(), "m_TreeInstances");
transfer.Transfer (m_TreeDatabase->GetTreePrototypes(), "m_TreePrototypes");
#if UNITY_EDITOR
if (transfer.IsBuildingTargetPlatform(kBuildAnyPlayerData))
{
SetupPreloadTextureAtlasData();
TRANSFER (m_PreloadTextureAtlasData);
m_PreloadTextureAtlasData.clear();
}
else
#endif
{
TRANSFER (m_PreloadTextureAtlasData);
}
}
struct MonoDetailPrototype {
ScriptingObjectPtr prototype;
ScriptingObjectPtr prototypeTexture;
ColorRGBAf healthyColor;
ColorRGBAf dryColor;
float minWidth, maxWidth;
float minHeight, maxHeight;
float noiseSpread;
float bendFactor;
int renderMode;
int usePrototypeMesh;
};
void DetailPrototypeToMono (const DetailPrototype &src, MonoDetailPrototype &dest);
void DetailPrototypeToCpp (MonoDetailPrototype &src, DetailPrototype &dest) ;
#endif // ENABLE_TERRAIN
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