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#pragma once
#include "Configuration/UnityConfigure.h"
#if ENABLE_TERRAIN
#include "Runtime/BaseClasses/GameObject.h"
#include "Runtime/Mono/MonoBehaviour.h"
#include "Runtime/Math/Vector3.h"
#include "Runtime/Terrain/TerrainData.h"
#include "Runtime/Utilities/NonCopyable.h"
class Camera;
class DetailRenderer;
class TerrainManager;
class TerrainRenderer;
class TreeRenderer;
class TerrainInstance
{
public:
enum RenderFlags
{
kRenderHeightmap = 1,
kRenderTrees = 2,
kRenderDetails = 4,
kRenderAll = kRenderHeightmap | kRenderTrees | kRenderDetails
};
TerrainInstance (GameObject* go);
~TerrainInstance ();
static void InitializeClass ();
static void CleanupClass ();
void OnEnable ();
void OnDisable ();
GameObject* GetGameObject() const { return m_GameObject; }
const Vector3f GetPosition () const;
void SetNeighbors (TerrainInstance* left, TerrainInstance* top, TerrainInstance* right, TerrainInstance* bottom);
void Flush ();
void FlushDirty ();
void GarbageCollectRenderers ();
int GetLightmapIndex() const { return m_LightmapIndex; }
void SetLightmapIndex (int value);
const int GetLightmapSize () const { return m_LightmapSize; }
void SetLightmapSize (int value);
GET_SET(PPtr<TerrainData>, TerrainData, m_TerrainData);
GET_SET(float, HeightmapPixelError, m_HeightmapPixelError);
GET_SET(int, HeightmapMaximumLOD, m_HeightmapMaximumLOD);
GET_SET(float, BasemapDistance, m_SplatMapDistance);
GET_SET(float, TreeDistance, m_TreeDistance);
GET_SET(float, TreeBillboardDistance, m_TreeBillboardDistance);
GET_SET(float, TreeCrossFadeLength, m_TreeCrossFadeLength);
GET_SET(int, TreeMaximumFullLODCount, m_TreeMaximumFullLODCount);
GET_SET(float, DetailObjectDistance, m_DetailObjectDistance);
GET_SET(bool, CastShadows, m_CastShadows);
GET_SET(bool, DrawTreesAndFoliage, m_DrawTreesAndFoliage);
GET_SET(Material*, MaterialTemplate, m_MaterialTemplate);
GET_SET(RenderFlags, EditorRenderFlags, m_EditorRenderFlags);
const float GetDetailObjectDensity () const { return m_DetailObjectDensity; }
void SetDetailObjectDensity (float value);
float SampleHeight (Vector3f worldPosition) const;
void ApplyDelayedHeightmapModification ();
void AddTreeInstance (const TreeInstance& tree);
void RemoveTrees (const Vector2f& position, float radius, int prototypeIndex);
void OnTerrainChanged(TerrainData::ChangedFlags flags);
TerrainRenderer* GetTerrainRendererDontCreate ();
bool NeedRenderTerrainGeometry() const { return (m_EditorRenderFlags & kRenderHeightmap) != 0; }
bool NeedRenderDetails() const { return (m_EditorRenderFlags & kRenderDetails) != 0 && m_DrawTreesAndFoliage && m_DetailObjectDistance > 0.001; }
bool NeedRenderTrees() const { return (m_EditorRenderFlags & kRenderTrees) != 0 && m_DrawTreesAndFoliage && m_TreeDistance > 0.001; }
private:
friend class TerrainManager;
struct Renderer
{
Camera* camera;
TerrainRenderer* terrain;
TreeRenderer* trees;
DetailRenderer* details;
int lastUsedFrame;
Renderer() : camera(NULL), terrain(NULL), trees(NULL), details(NULL), lastUsedFrame(0) {}
};
const Renderer* GetRenderer();
PPtr<TerrainData> m_TerrainData;
Vector3f m_Position;
GameObject* m_GameObject;
float m_HeightmapPixelError;
int m_HeightmapMaximumLOD;
float m_SplatMapDistance;
int m_LightmapIndex;
int m_LightmapSize;
float m_TreeDistance;
float m_TreeBillboardDistance;
float m_TreeCrossFadeLength;
int m_TreeMaximumFullLODCount;
float m_DetailObjectDistance;
float m_DetailObjectDensity;
bool m_CastShadows;
bool m_DrawTreesAndFoliage;
PPtr<Material> m_MaterialTemplate;
TerrainInstance* m_LeftNeighbor;
TerrainInstance* m_RightNeighbor;
TerrainInstance* m_BottomNeighbor;
TerrainInstance* m_TopNeighbor;
RenderFlags m_EditorRenderFlags;
// Which part of the terrain is dirty
TerrainData::ChangedFlags m_DirtyFlags;
dynamic_array<Renderer> m_Renderers;
};
#endif
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