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():
27 type(POINTEDTHING_NOTHING),
28 node_undersurface(0,0,0),
29 node_abovesurface(0,0,0),
30 node_real_undersurface(0,0,0),
31 intersection_point(0,0,0),
32 intersection_normal(0,0,0),
36 std::string PointedThing::dump() const
38 std::ostringstream os(std::ios::binary);
39 if (type == POINTEDTHING_NOTHING) {
41 } else if (type == POINTEDTHING_NODE) {
42 const v3s16 &u = node_undersurface;
43 const v3s16 &a = node_abovesurface;
44 os<<"[node under="<<u.X<<","<<u.Y<<","<<u.Z
45 << " above="<<a.X<<","<<a.Y<<","<<a.Z<<"]";
46 } else if (type == POINTEDTHING_OBJECT) {
47 os<<"[object "<<object_id<<"]";
49 os<<"[unknown PointedThing]";
54 void PointedThing::serialize(std::ostream &os) const
56 writeU8(os, 0); // version
57 writeU8(os, (u8)type);
59 case POINTEDTHING_NOTHING:
61 case POINTEDTHING_NODE:
62 writeV3S16(os, node_undersurface);
63 writeV3S16(os, node_abovesurface);
65 case POINTEDTHING_OBJECT:
66 writeS16(os, object_id);
71 void PointedThing::deSerialize(std::istream &is)
73 int version = readU8(is);
74 if (version != 0) throw SerializationError(
75 "unsupported PointedThing version");
76 type = (PointedThingType) readU8(is);
78 case POINTEDTHING_NOTHING:
80 case POINTEDTHING_NODE:
81 node_undersurface = readV3S16(is);
82 node_abovesurface = readV3S16(is);
84 case POINTEDTHING_OBJECT:
85 object_id = readS16(is);
88 throw SerializationError("unsupported PointedThingType");
92 bool PointedThing::operator==(const PointedThing &pt2) const
98 if (type == POINTEDTHING_NODE)
100 if ((node_undersurface != pt2.node_undersurface)
101 || (node_abovesurface != pt2.node_abovesurface)
102 || (node_real_undersurface != pt2.node_real_undersurface))
105 else if (type == POINTEDTHING_OBJECT)
107 if (object_id != pt2.object_id)
113 bool PointedThing::operator!=(const PointedThing &pt2) const
115 return !(*this == pt2);