Mercator  0.4.0
Area.h
1 // This file may be redistributed and modified only under the terms of
2 // the GNU General Public License (See COPYING for details).
3 // Copyright (C) 2005 Alistair Riddoch
4 
5 #ifndef MERCATOR_AREA_H
6 #define MERCATOR_AREA_H
7 
8 #include "Effector.h"
9 
10 #include <wfmath/axisbox.h>
11 #include <wfmath/polygon.h>
12 
13 namespace Mercator
14 {
15 
16 class Segment;
17 class Shader;
18 
28 class Area : public Effector
29 {
30 public:
35  Area(int layer, bool hole);
36 
41  void setLayer(int layer, bool hole);
42 
44  void setShape(const WFMath::Polygon<2>& p);
45 
46  void setShader(const Shader * shader) const;
47 
49  bool contains(WFMath::CoordType x, WFMath::CoordType z) const;
50 
52  int getLayer() const
53  {
54  return m_layer;
55  }
56 
58  bool isHole() const
59  {
60  return m_hole;
61  }
62 
64  const WFMath::Polygon<2> & shape() const
65  {
66  return m_shape;
67  }
68 
69  const Shader * getShader() const
70  {
71  return m_shader;
72  }
73 
77  bool checkIntersects(const Segment& s) const;
78 
86  WFMath::Polygon<2> clipToSegment(const Segment& s) const;
87 private:
88 
90  int m_layer;
92  bool m_hole;
94  WFMath::Polygon<2> m_shape;
96  mutable const Shader * m_shader;
97 };
98 
99 }
100 
101 #endif // of MERCATOR_AREA_H
Device which effects a change in the terrain.
Definition: Effector.h:25
const WFMath::Polygon< 2 > & shape() const
Accessor for the geometric shape.
Definition: Area.h:64
bool isHole() const
Accessor for the flag indicating whether this is a hole.
Definition: Area.h:58
Definition: Area.cpp:20
Area(int layer, bool hole)
Constructor.
Definition: Area.cpp:232
WFMath::Polygon< 2 > clipToSegment(const Segment &s) const
Clip the shape of this area to a given segment.
Definition: Area.cpp:258
Class storing heightfield and other data for a single fixed size square area of terrain defined by fo...
Definition: Segment.h:36
Base class for Shader objects which create surface data for use when rendering terrain.
Definition: Shader.h:24
void setLayer(int layer, bool hole)
Set the layer number and flag indicating whether this is a hole.
bool checkIntersects(const Segment &s) const
Definition: Area.cpp:273
int getLayer() const
Accessor for the layer number.
Definition: Area.h:52
bool contains(WFMath::CoordType x, WFMath::CoordType z) const
Determine if a point is contained by the shape of this area.
Definition: Area.cpp:251
Region of terrain surface which is modified.
Definition: Area.h:28
void setShape(const WFMath::Polygon< 2 > &p)
Set the geometric shape of this area.
Definition: Area.cpp:239