3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20 #include "pointedthing.h"
22 #include "serialize.h"
23 #include "exceptions.h"
26 PointedThing::PointedThing(const v3s16 &under, const v3s16 &above,
27 const v3s16 &real_under, const v3f &point, const v3s16 &normal,
28 u16 box_id, f32 distSq):
29 type(POINTEDTHING_NODE),
30 node_undersurface(under),
31 node_abovesurface(above),
32 node_real_undersurface(real_under),
33 intersection_point(point),
34 intersection_normal(normal),
39 PointedThing::PointedThing(s16 id, const v3f &point, const v3s16 &normal,
41 type(POINTEDTHING_OBJECT),
43 intersection_point(point),
44 intersection_normal(normal),
48 std::string PointedThing::dump() const
50 std::ostringstream os(std::ios::binary);
52 case POINTEDTHING_NOTHING:
55 case POINTEDTHING_NODE:
57 const v3s16 &u = node_undersurface;
58 const v3s16 &a = node_abovesurface;
59 os << "[node under=" << u.X << "," << u.Y << "," << u.Z << " above="
60 << a.X << "," << a.Y << "," << a.Z << "]";
63 case POINTEDTHING_OBJECT:
64 os << "[object " << object_id << "]";
67 os << "[unknown PointedThing]";
72 void PointedThing::serialize(std::ostream &os) const
74 writeU8(os, 0); // version
75 writeU8(os, (u8)type);
77 case POINTEDTHING_NOTHING:
79 case POINTEDTHING_NODE:
80 writeV3S16(os, node_undersurface);
81 writeV3S16(os, node_abovesurface);
83 case POINTEDTHING_OBJECT:
84 writeS16(os, object_id);
89 void PointedThing::deSerialize(std::istream &is)
91 int version = readU8(is);
92 if (version != 0) throw SerializationError(
93 "unsupported PointedThing version");
94 type = (PointedThingType) readU8(is);
96 case POINTEDTHING_NOTHING:
98 case POINTEDTHING_NODE:
99 node_undersurface = readV3S16(is);
100 node_abovesurface = readV3S16(is);
102 case POINTEDTHING_OBJECT:
103 object_id = readS16(is);
106 throw SerializationError("unsupported PointedThingType");
110 bool PointedThing::operator==(const PointedThing &pt2) const
112 if (type != pt2.type)
116 if (type == POINTEDTHING_NODE)
118 if ((node_undersurface != pt2.node_undersurface)
119 || (node_abovesurface != pt2.node_abovesurface)
120 || (node_real_undersurface != pt2.node_real_undersurface))
123 else if (type == POINTEDTHING_OBJECT)
125 if (object_id != pt2.object_id)
131 bool PointedThing::operator!=(const PointedThing &pt2) const
133 return !(*this == pt2);