Moved Stars45 to StarsEx

1 files changed, 93 insertions, 0 deletions

diff --git a/StarsEx/TerrainPatch.h b/StarsEx/TerrainPatch.h
new file mode 100644
index 0000000..db91833
--- /dev/null
+++ b/StarsEx/TerrainPatch.h
@@ -0,0 +1,93 @@
+/*  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
+