4 #include "common_irrlicht.h"
9 TODO: A fast voxel manipulator class
15 This class resembles aabbox3d<s16> a lot, but has inclusive
16 edges for saner handling of integer sizes
21 // Starts as zero sized
27 VoxelArea(v3s16 min_edge, v3s16 max_edge):
37 void addArea(VoxelArea &a)
39 if(a.MinEdge.X < MinEdge.X) MinEdge.X = a.MinEdge.X;
40 if(a.MinEdge.Y < MinEdge.Y) MinEdge.Y = a.MinEdge.Y;
41 if(a.MinEdge.Z < MinEdge.Z) MinEdge.Z = a.MinEdge.Z;
42 if(a.MaxEdge.X > MaxEdge.X) MaxEdge.X = a.MaxEdge.X;
43 if(a.MaxEdge.Y > MaxEdge.Y) MaxEdge.Y = a.MaxEdge.Y;
44 if(a.MaxEdge.Z > MaxEdge.Z) MaxEdge.Z = a.MaxEdge.Z;
46 void addPoint(v3s16 p)
48 if(p.X < MinEdge.X) MinEdge.X = p.X;
49 if(p.Y < MinEdge.Y) MinEdge.Y = p.Y;
50 if(p.Z < MinEdge.Z) MinEdge.Z = p.Z;
51 if(p.X > MaxEdge.X) MaxEdge.X = p.X;
52 if(p.Y > MaxEdge.Y) MaxEdge.Y = p.Y;
53 if(p.Z > MaxEdge.Z) MaxEdge.Z = p.Z;
57 return MaxEdge - MinEdge + v3s16(1,1,1);
61 v3s16 e = getExtent();
62 return (s32)e.X * (s32)e.Y * (s32)e.Z;
64 bool isInside(v3s16 p)
67 p.X >= MinEdge.X && p.X <= MaxEdge.X &&
68 p.Y >= MinEdge.Y && p.Y <= MaxEdge.Y &&
69 p.Z >= MinEdge.Z && p.Z <= MaxEdge.Z
72 bool operator==(const VoxelArea &other)
74 return (MinEdge == other.MinEdge
75 && MaxEdge == other.MaxEdge);
79 Translates position from virtual coordinates to array index
81 s32 index(s16 x, s16 y, s16 z)
83 v3s16 em = getExtent();
85 s32 i = (s32)(z-off.Z)*em.Y*em.X + (y-off.Y)*em.X + (x-off.X);
86 //dstream<<" i("<<x<<","<<y<<","<<z<<")="<<i<<" ";
91 return index(p.X, p.Y, p.Z);
94 void print(std::ostream &o)
105 // Edges are inclusive
110 class VoxelManipulator : public NodeContainer
117 Virtuals from NodeContainer
119 virtual u16 nodeContainerId() const
121 return NODECONTAINER_ID_VOXELMANIPULATOR;
123 bool isValidPosition(v3s16 p)
125 return m_area.isInside(p);
127 // These are a bit slow and shouldn't be used internally
128 MapNode getNode(v3s16 p)
130 if(isValidPosition(p) == false)
131 emerge(VoxelArea(p));
133 MapNode &n = m_data[m_area.index(p)];
135 //TODO: Is this the right behaviour?
136 if(n.d == MATERIAL_IGNORE)
137 throw InvalidPositionException
138 ("Not returning MATERIAL_IGNORE in VoxelManipulator");
142 void setNode(v3s16 p, MapNode & n)
144 if(isValidPosition(p) == false)
145 emerge(VoxelArea(p));
146 m_data[m_area.index(p)] = n;
149 MapNode & operator[](v3s16 p)
151 //dstream<<"operator[] p=("<<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;
152 if(isValidPosition(p) == false)
153 emerge(VoxelArea(p));
154 return m_data[m_area.index(p)];
158 Manipulation of bigger chunks
161 void print(std::ostream &o);
163 void addArea(VoxelArea area);
165 void interpolate(VoxelArea area);
167 /*void blitFromNodeContainer
168 (v3s16 p_from, v3s16 p_to, v3s16 size, NodeContainer *c);
170 void blitToNodeContainer
171 (v3s16 p_from, v3s16 p_to, v3s16 size, NodeContainer *c);*/
178 Get the contents of the requested area from somewhere.
180 If not found from source, add as MATERIAL_IGNORE.
182 virtual void emerge(VoxelArea a)
184 //dstream<<"emerge p=("<<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;
193 The area that is stored in m_data.
194 addInternalBox should not be used if getExtent() == v3s16(0,0,0)
195 MaxEdge is 1 higher than maximum allowed position
199 NULL if data size is 0
200 Data is stored as [z*h*w + y*h + x]
202 MATERIAL_IGNORE: Unspecified node
210 class MapVoxelManipulator : public VoxelManipulator
213 MapVoxelManipulator(Map *map);
215 virtual void emerge(VoxelArea a);
217 void blitBack(core::map<v3s16, MapBlock*> & modified_blocks);