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-/* Starshatter: The Open Source Project
- Copyright (c) 2021-2022, Starshatter: The Open Source Project Contributors
- Copyright (c) 2011-2012, Starshatter OpenSource Distribution Contributors
- Copyright (c) 1997-2006, Destroyer Studios LLC.
-
- AUTHOR: John DiCamillo
-
-
- OVERVIEW
- ========
- A Single Multi-LOD Section of a Terrain Object
-*/
-
-#ifndef TerrainPatch_h
-#define TerrainPatch_h
-
-#include "Types.h"
-#include "Solid.h"
-#include "Geometry.h"
-#include "Polygon.h"
-
-// +--------------------------------------------------------------------+
-
-class Projector;
-class Terrain;
-class Water;
-
-// +--------------------------------------------------------------------+
-
-class TerrainPatch : public Solid
-{
-public:
- TerrainPatch(Terrain* terrain,
- const Bitmap* patch, const Rect& rect,
- const Point& p1, const Point& p2);
- TerrainPatch(Terrain* terrain, const Rect& rect,
- const Point& p1, const Point& p2,
- double sea_level);
- virtual ~TerrainPatch();
-
- virtual void SelectDetail(Projector* projector);
- virtual void Render(Video* video, DWORD flags);
-
- virtual int CollidesWith(Graphic& o);
-
- // accessors:
- double Scale() const { return scale; }
- double MountainScale() const { return mtnscale; }
- double SeaLevel() const { return base; }
- double MinHeight() const { return min_height; }
- double MaxHeight() const { return max_height; }
- bool IsWater() const { return water != 0; }
-
- void UpdateSurfaceWaves(Vec3& eyePos);
-
- void SetScales(double scale, double mtnscale, double base);
- void SetDetailLevel(int nd);
-
- virtual int CheckRayIntersection(Point pt, Point vpn, double len, Point& ipt,
- bool treat_translucent_polys_as_solid=true);
-
- double Height(double x, double y) const;
- DWORD BlendValue(double y);
- int CalcLayer(Poly* p);
- void Illuminate(Color ambient, List<Light>& lights);
-
-protected:
- virtual bool BuildDetailLevel(int level);
-
- enum { MAX_LOD=8 };
-
- Terrain* terrain;
- int patch_size;
- int ndetail;
- int max_detail;
- int terrain_width;
-
- Rect rect;
- float* heights;
- Model* detail_levels[MAX_LOD];
- List<Material> materials;
- Water* water;
-
- double scale;
- double mtnscale;
- double base;
- double size;
- float min_height;
- float max_height;
-};
-
-#endif // TerrainPatch_h
-