1 #include <msp/geometry/box.h>
2 #include <msp/geometry/transformedshape.h>
5 #include "terraintype.h"
12 Terrain::Terrain(Layout &l, const TerrainType &t):
28 Terrain *Terrain::clone(Layout *to_layout) const
30 Terrain *terrain = new Terrain((to_layout ? *to_layout : layout), type);
31 terrain->set_size(width, height);
32 for(unsigned i=0; i<tiles.size(); ++i)
33 terrain->tiles[i] = tiles[i];
37 void Terrain::set_position(const Vector &p)
43 void Terrain::set_rotation(const Angle &r)
49 void Terrain::set_size(unsigned w, unsigned h)
52 throw invalid_argument("Terrain::set_size");
54 vector<Tile> new_tiles(w*h);
55 for(unsigned y=0; (y<h && y<height); ++y)
56 for(unsigned x=0; (x<w && x<width); ++x)
57 new_tiles[x+y*w] = tiles[x+y*width];
61 swap(tiles, new_tiles);
64 float ts = type.get_tile_size();
65 Vector dim(width*ts, height*ts, ts);
66 shape = new Geometry::TransformedShape<float, 3>(
67 Geometry::Box<float>(dim),
68 Transform::translation(dim/2.0f));
70 signal_size_changed.emit(width, height);
73 const Terrain::Tile &Terrain::get_tile(unsigned x, unsigned y) const
75 if(x>=width || y>=height)
76 throw out_of_range("Terrain::get_tile");
77 return tiles[x+y*width];
80 void Terrain::set_node_elevation(const NodeCoordinates &c, float elev, bool joined)
82 if(c.x>=width || c.y>=height || c.i>=4)
83 throw out_of_range("Terrain::set_node_elevation");
85 float eg = type.get_elevation_granularity();
86 elev = int(elev/eg+0.5)*eg;
90 float ref = tiles[c.x+c.y*width].nodes[c.i].elevation;
91 for(unsigned i=0; i<4; ++i)
93 unsigned x = c.x+c.i%2-i%2;
94 unsigned y = c.y+c.i/2-i/2;
95 if(x<width && y<height)
97 Tile &tile = tiles[x+y*width];
98 if(tile.nodes[i].elevation==ref)
100 tile.nodes[i].elevation = elev;
101 signal_tile_changed.emit(x, y);
108 tiles[c.x+c.y*width].nodes[c.i].elevation = elev;
109 signal_tile_changed.emit(c.x, c.y);
113 float Terrain::get_node_elevation(const NodeCoordinates &c) const
115 if(c.x>=width || c.y>=height || c.i>=4)
116 throw out_of_range("Terrain::get_node_elevation");
118 return tiles[c.x+c.y*width].nodes[c.i].elevation;
121 Vector Terrain::get_node_position(const NodeCoordinates &c) const
123 if(c.x>=width || c.y>=height || c.i>=4)
124 throw out_of_range("Terrain::get_node_position");
126 const Tile &tile = tiles[c.x+c.y*width];
127 float tile_size = type.get_tile_size();
128 Transform trans = Transform::translation(position)*
129 Transform::rotation(rotation, Vector(0, 0, 1));
130 return trans.transform(Vector((c.x+c.i%2)*tile_size, (c.y+c.i/2)*tile_size, tile.nodes[c.i].elevation));
133 Terrain::NodeCoordinates Terrain::get_closest_node(const Ray &ray) const
135 NodeCoordinates coords;
136 float closest_dist = -1;
137 for(unsigned y=0; y<height; ++y)
138 for(unsigned x=0; x<width; ++x)
139 for(unsigned i=0; i<4; ++i)
141 NodeCoordinates c(x, y, i);
142 /* XXX This is not very efficient. Should transform the ray to
143 local coordinate system. */
144 Vector node_pos = get_node_position(c);
145 Vector v = node_pos-ray.get_start();
146 float dist = (v-ray.get_direction()*dot(ray.get_direction(), v)).norm();
147 if(closest_dist<0 || dist<closest_dist)
156 void Terrain::save(list<DataFile::Statement> &st) const
158 st.push_back((DataFile::Statement("size"), width, height));
159 for(vector<Tile>::const_iterator i=tiles.begin(); i!=tiles.end(); ++i)
161 DataFile::Statement ss("tile");
168 Terrain::Node::Node():
174 void Terrain::Node::save(list<DataFile::Statement> &st) const
176 st.push_back((DataFile::Statement("elevation"), elevation));
177 st.push_back((DataFile::Statement("ground"), ground));
181 Terrain::Tile::Tile():
182 secondary_axis(false)
185 void Terrain::Tile::save(list<DataFile::Statement> &st) const
188 for(unsigned i=1; (flat && i<4); ++i)
189 flat = (nodes[i].elevation==nodes[0].elevation && nodes[i].ground==nodes[0].ground && nodes[i].wall==nodes[0].wall);
192 st.push_back((DataFile::Statement("elevation"), nodes[0].elevation));
193 st.push_back((DataFile::Statement("ground"), nodes[0].ground));
197 for(unsigned i=0; i<4; ++i)
199 DataFile::Statement ss("node");
201 nodes[i].save(ss.sub);
208 Terrain::NodeCoordinates::NodeCoordinates():
214 Terrain::NodeCoordinates::NodeCoordinates(unsigned x_, unsigned y_, unsigned i_):
221 Terrain::Loader::Loader(Terrain &t):
222 DataFile::ObjectLoader<Terrain>(t),
225 add("position", &Loader::position);
226 add("rotation", &Loader::rotation);
227 add("size", &Loader::size);
228 add("tile", &Loader::tile);
229 add("tile", &Loader::tile_coords);
232 void Terrain::Loader::position(float x, float y, float z)
234 obj.set_position(Vector(x, y, z));
237 void Terrain::Loader::rotation(float a)
239 obj.set_rotation(Angle::from_radians(a));
242 void Terrain::Loader::size(unsigned w, unsigned h)
247 void Terrain::Loader::tile()
249 if(next_tile>=obj.tiles.size())
250 throw runtime_error("Terrain::Loader::tile");
252 Tile &t = obj.tiles[next_tile];
253 Tile::Loader ldr(obj, t);
255 unsigned x = next_tile%obj.width;
256 unsigned y = next_tile/obj.width;
258 obj.signal_tile_changed.emit(x, y);
261 void Terrain::Loader::tile_coords(unsigned x, unsigned y)
263 if(x>=obj.width || y>=obj.height)
264 throw out_of_range("Terrain::Loader::tile");
265 next_tile = x+y*obj.width;
270 Terrain::Node::Loader::Loader(Terrain &t, Node &n):
271 DataFile::ObjectLoader<Node>(n),
274 add("ground", &Loader::ground);
275 add("elevation", &Node::elevation);
278 void Terrain::Node::Loader::ground(unsigned g)
280 if(g>=terrain.type.get_n_surface_types())
281 throw out_of_range("Tile::Loader::surface");
286 Terrain::Tile::Loader::Loader(Terrain &t, Tile &l):
287 DataFile::ObjectLoader<Tile>(l),
290 add("ground", &Loader::ground);
291 add("elevation", &Loader::elevation);
292 add("node", &Loader::node);
295 void Terrain::Tile::Loader::ground(unsigned g)
297 if(g>=terrain.type.get_n_surface_types())
298 throw out_of_range("Tile::Loader::surface");
299 for(unsigned i=0; i<4; ++i)
300 obj.nodes[i].ground = g;
303 void Terrain::Tile::Loader::elevation(float h)
305 for(unsigned i=0; i<4; ++i)
306 obj.nodes[i].elevation = h;
309 void Terrain::Tile::Loader::node(unsigned i)
312 throw out_of_range("Tile::Loader::node");
313 Node::Loader ldr(terrain, obj.nodes[i]);