source: Revenant/geoworld/include/stratum.h@ 7ef8ec4

port/mars-tycoon
Last change on this file since 7ef8ec4 was 80a6a52, checked in by Jonathan Neufeld <support@…>, 3 years ago

Get to a compile state for terrain procedural generation
  • Property mode set to 100644
File size: 10.0 KB
Line 
1#ifndef __GEOWORLDSTRATUM_H__
2#define __GEOWORLDSTRATUM_H__
3
4#include <assert.h>
5
6#include <vector>
7#include <fstream>
8
9#include <mars_util.h>
10#include <gwtypes.h>
11#include <gwutil.h>
12
13namespace geoworld
14{
15 class StratumData
16 {
17 public:
18 typedef std::vector< GeoStratumField::View * > FieldList;
19
20 class Offset
21 {
22 public:
23 StratumData * const data;
24 const StratumData * const_data;
25 const signed int x, y;
26
27 Offset (StratumData * const pData, const signed int x, const signed int y)
28 : data(pData), const_data(pData), x(x), y(y) {}
29 Offset (const StratumData * pData, const signed int x, const signed int y)
30 : data(NULL), const_data(pData), x(x), y(y) {}
31
32 void operator >> (StratumData & other) const
33 { const_data->copySection(other, x, y); }
34 void operator << (const StratumData & other)
35 {
36 assert(data != NULL);
37 other.copySection(*data, x, y);
38 }
39 };
40
41 FieldList fields;
42 GeoHeightMap::View * baseview; // DEPS: Unbounded view depends on GeoHeightMap::Precision
43
44 StratumData (const size_t nLayers, const unsigned short nWidth, const unsigned short nHeight, const mars::GridType engt = mars::Normal);
45 StratumData (StratumData * pParent, const unsigned short nLeft, const unsigned short nTop, const unsigned short nRight, const unsigned short nBottom);
46 ~StratumData();
47
48 void operator >> (StratumData & dest) const;
49 void operator << (const StratumData & src);
50 inline void operator >> (Offset dest) const
51 {
52 copySection(*dest.data, dest.x, dest.y);
53 }
54 inline void operator << (const Offset src)
55 {
56 src.const_data->copySection(*this, src.x, src.y);
57 }
58
59 private:
60 const StratumData * _pParent;
61
62 void copySection (StratumData & dest, const signed int x, const signed int y) const;
63
64 };
65
66 class StratumView
67 {
68 private:
69 typedef std::vector< std::pair< size_t, size_t > > IdxMap;
70 typedef std::vector< size_t > ElemCounts;
71
72 mars::RangeX< GeoHeightMap::Precision > _z;
73 GeoHeightMap::Precision _zBase, _zBasedMin;
74
75 mutable StratumData _data;
76
77 IdxMap _idx0map; // DEPS: Implication made in fetchSurfaceViewIndices()
78 ElemCounts _counts;
79 const WorldUnit _one;
80
81 mutable size_t _nViewRefCount;
82 GW_MUTEX(atomic);
83
84 protected:
85 StratumView(const size_t nLayers, const mars::BBox< WorldUnit > & bbox, const WorldUnit z0, const WorldUnit zN, const WorldUnit zBase, const unsigned short nLOD, const mars::GridType engt = mars::Normal);
86 StratumView(StratumData * pParentData, const mars::BBox< WorldUnit > & bbox, const WorldUnit z0, const WorldUnit zN, const WorldUnit zBase, const unsigned short nLOD);
87 StratumView(const StratumView * const pParent, const mars::BBox< WorldUnit > & bbox);
88 StratumView(StratumView && move) : _z(move._z), _zBase(move._zBase), _zBasedMin(move._zBasedMin), _data(move._data), _idx0map(move._idx0map), _counts(move._counts), _one(move._one), _nViewRefCount(move._nViewRefCount), abswidth(move.abswidth), absheight(move.absheight), absdepth(move.absdepth), width(move.width), height(move.height), depth(move.depth), lod(move.lod), layers(move.layers) {}
89
90 inline static StratumView createHosted (const size_t nLayers, const WorldUnit nLeft, const WorldUnit nTop, const WorldUnit nBasement, const WorldUnit nRight, const WorldUnit nBottom, const WorldUnit nCeiling, const unsigned short nLOD, const mars::GridType engt = mars::Normal)
91 {
92 return createHosted(nLayers, mars::BBox< WorldUnit > (nLeft, nTop, nRight, nBottom), nBasement, nCeiling, nLOD, engt);
93 }
94 inline static StratumView createHosted (const size_t nLayers, const mars::BBox< WorldUnit > & bbox, const WorldUnit nBasement, const WorldUnit nCeiling, const unsigned short nLOD, const mars::GridType engt = mars::Normal)
95 {
96 return StratumView(
97 nLayers,
98 bbox,
99 nBasement,
100 nCeiling,
101 nBasement,
102 nLOD,
103 engt
104 );
105 }
106
107 const GeoStratumField::Element & getDominantElement( std::vector< unsigned short > & indices ) const;
108
109 public:
110 const unsigned long abswidth, absheight, absdepth;
111 const unsigned short width, height, depth, lod;
112
113 class Ex : public std::exception
114 {
115 public:
116 const std::string message;
117
118 Ex (const char * szMsg) : message(szMsg) {}
119 };
120
121 class Offset
122 {
123 public:
124 StratumView * const view;
125 const StratumView * const_view;
126 const WorldUnit x, y;
127
128 Offset (StratumView * const pView, const WorldUnit x, const WorldUnit y)
129 : view(pView), const_view(pView), x(x), y(y) {}
130 Offset (const StratumView * pView, const WorldUnit x, const WorldUnit y)
131 : view(NULL), const_view(pView), x(x), y(y) {}
132
133 void operator >> (StratumView & other) const
134 {
135 const_view->_data >> StratumData::Offset(&other._data, x >> const_view->lod, y >> const_view->lod);
136 }
137 void operator << (const StratumView & other)
138 {
139 assert(view != NULL);
140 other._data << StratumData::Offset(&view->_data, x >> const_view->lod, y >> const_view->lod);
141 }
142 };
143
144 typedef StratumView View;
145
146 const size_t layers;
147
148 ~StratumView();
149
150 inline StratumData::FieldList::iterator beginFields () { return _data.fields.begin(); }
151 inline StratumData::FieldList::iterator endFields () { return _data.fields.end(); }
152 inline StratumData::FieldList::const_iterator beginFields () const { return _data.fields.begin(); }
153 inline StratumData::FieldList::const_iterator endFields () const { return _data.fields.end(); }
154
155 inline GeoStratumField::View & field(const size_t c) { return *_data.fields[c]; }
156 inline const GeoStratumField::View & field(const size_t c) const { return *_data.fields[c]; }
157
158 template< typename Fn >
159 void warp (const signed int x, const signed int y, const GeoHeightMap::Precision nAmt, const Fn & fn)
160 {
161 const signed int
162 xlo = static_cast< signed int > (x >> lod),
163 ylo = static_cast< signed int > (y >> lod);
164 GeoHeightMap::Precision zi = 0;
165
166 (*_data.baseview)(xlo, ylo) += static_cast< GeoHeightMap::Precision > (static_cast< float > (nAmt) * fn.f(0.0f));
167
168 for (size_t c = 0; c < _data.fields.size(); ++c)
169 {
170 GeoStratumField::View & view = *_data.fields[c];
171 const GeoHeightMap::Precision nAlt0 = view.altitude(xlo, ylo);
172
173 zi += nAlt0;
174 view.altitude(xlo, ylo) += nAmt * fn.f(zi);
175 }
176 }
177
178 void fetchViewElements (std::set< GeoStratumField::Element > & st) const;
179 void fetchViewIndices (std::set< unsigned short > & st) const;
180 const GeoStratumField::Element & getDominantElementVN3 (const WorldUnit x, const WorldUnit y, const WorldUnit z) const;
181 const GeoStratumField::Element & getDominantElementVN (const WorldUnit x, const WorldUnit y) const;
182
183 inline GeoHeightMap::Precision & altitude(const WorldUnit x, const WorldUnit y)
184 { return (*_data.baseview)(x >> lod, y >> lod); }
185 inline const GeoHeightMap::Precision & altitude(const WorldUnit x, const WorldUnit y) const
186 { return (*_data.baseview)(x >> lod, y >> lod); }
187
188 unsigned short getIndex (const WorldUnit x, const WorldUnit y, const WorldUnit z) const;
189 const GeoStratumField::Element & getElement (const WorldUnit x, const WorldUnit y, const WorldUnit z) const;
190 inline const GeoStratumField::Element & getElement (const size_t nIdx) const
191 {
192 const std::pair< size_t, size_t > & pair = _idx0map[nIdx];
193 return _data.fields[pair.first] ->getElement(nIdx - pair.second);
194 }
195 signed int findIndex (const GeoStratumField::Element & elem) const;
196
197 // Retrieve total concatenated range of all strata and top-level DEM
198 mars::Range< WorldUnit > getRange() const;
199
200 inline GeoHeightMap::View & getBase () { return *_data.baseview; }
201 inline const GeoHeightMap::View & getBase () const { return *_data.baseview; }
202 inline GeoStratumField::View & operator [] (const size_t c) { return *_data.fields[c]; }
203 inline const GeoStratumField::View & operator [] (const size_t c) const { return *_data.fields[c]; }
204 inline size_t size() const { return _data.fields.size(); }
205
206 virtual void updateIndexMap ();
207
208 const StratumView * createView( const WorldUnit nLeft, const WorldUnit nTop, const WorldUnit nShallow, const WorldUnit nRight, const WorldUnit nBottom, const WorldUnit nDeep ) const;
209 const StratumView * createView( const WorldUnit nLeft, const WorldUnit nTop, const WorldUnit nRight, const WorldUnit nBottom ) const;
210
211 StratumView * createView( const WorldUnit nLeft, const WorldUnit nTop, const WorldUnit nShallow, const WorldUnit nRight, const WorldUnit nBottom, const WorldUnit nDeep );
212 StratumView * createView( const WorldUnit nLeft, const WorldUnit nTop, const WorldUnit nRight, const WorldUnit nBottom );
213
214 void releaseView (const StratumView * pView) const;
215
216 inline void operator >> (StratumView & dest) const
217 {
218 assert(width == dest.width && height == dest.height && lod == dest.lod);
219 _data >> dest._data;
220 dest.updateIndexMap();
221 }
222 inline void operator << (const StratumView & src)
223 {
224 assert(width == src.width && height == src.height && lod == src.lod);
225 _data << src._data;
226 updateIndexMap();
227 }
228 inline void operator >> (Offset dest) const
229 {
230 assert(lod == dest.view->lod);
231 _data >> StratumData::Offset(&dest.view->_data, dest.x >> lod, dest.y >> lod);
232 dest.view->updateIndexMap();
233 }
234 inline void operator << (const Offset src)
235 {
236 assert(lod == src.const_view->lod);
237 _data << StratumData::Offset(&src.const_view->_data, src.x >> lod, src.y >> lod);
238 updateIndexMap();
239 }
240
241 void applyDEM(const GeoHeightMap::View & hmv, const unsigned short nDEMLOD);
242 };
243
244 class Stratum : public StratumView
245 {
246 private:
247 WorldUnit _nActualDepth;
248
249 public:
250 Stratum (const size_t nLayers, const WorldUnit nWidth, const WorldUnit nHeight, const WorldUnit nDepth, const unsigned short nLOD, const mars::GridType engt = mars::Normal);
251 // Stratum (const Stratum & copy);
252
253 inline void operator >> (StratumView & dest) const
254 { StratumView::operator >> (dest); }
255 inline void operator << (const StratumView & other)
256 { StratumView::operator << (other); }
257 inline void operator >> (Offset dest) const
258 { StratumView::operator >> (dest); }
259 inline void operator << (const Offset src)
260 { StratumView::operator << (src); }
261
262 std::ostream & operator >> (std::ostream & outs) const;
263 std::istream & operator << (std::istream & ins);
264 };
265}
266
267#endif
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