1 files changed, 132 insertions, 0 deletions
diff --git a/Runtime/Terrain/TerrainInstance.h b/Runtime/Terrain/TerrainInstance.h
new file mode 100644
index 0000000..d0ce1cd
--- /dev/null
+++ b/Runtime/Terrain/TerrainInstance.h
@@ -0,0 +1,132 @@
+#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
+\ No newline at end of file