3 Copyright (C) 2010 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 General Public License as published by
7 the Free Software Foundation; either version 2 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 General Public License for more details.
15 You should have received a copy of the GNU 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 "common_irrlicht.h"
24 #include "main.h" // For g_settings
26 #include "content_mapnode.h" // For mapnode_translate_*_internal
27 #include "serialization.h" // For ser_ver_supported
33 // Create directly from a nodename
34 // If name is unknown, sets CONTENT_IGNORE
35 MapNode::MapNode(INodeDefManager *ndef, const std::string &name,
36 u8 a_param1, u8 a_param2)
38 content_t id = CONTENT_IGNORE;
39 ndef->getId(name, id);
42 // Set content (param0 and (param2&0xf0)) after other params
43 // because this needs to override part of param2
47 void MapNode::setLight(enum LightBank bank, u8 a_light, INodeDefManager *nodemgr)
49 // If node doesn't contain light data, ignore this
50 if(nodemgr->get(*this).param_type != CPT_LIGHT)
52 if(bank == LIGHTBANK_DAY)
55 param1 |= a_light & 0x0f;
57 else if(bank == LIGHTBANK_NIGHT)
60 param1 |= (a_light & 0x0f)<<4;
66 u8 MapNode::getLight(enum LightBank bank, INodeDefManager *nodemgr) const
68 // Select the brightest of [light source, propagated light]
69 const ContentFeatures &f = nodemgr->get(*this);
71 if(f.param_type == CPT_LIGHT)
73 if(bank == LIGHTBANK_DAY)
74 light = param1 & 0x0f;
75 else if(bank == LIGHTBANK_NIGHT)
76 light = (param1>>4)&0x0f;
80 if(f.light_source > light)
81 light = f.light_source;
85 bool MapNode::getLightBanks(u8 &lightday, u8 &lightnight, INodeDefManager *nodemgr) const
87 // Select the brightest of [light source, propagated light]
88 const ContentFeatures &f = nodemgr->get(*this);
89 if(f.param_type == CPT_LIGHT)
91 lightday = param1 & 0x0f;
92 lightnight = (param1>>4)&0x0f;
99 if(f.light_source > lightday)
100 lightday = f.light_source;
101 if(f.light_source > lightnight)
102 lightnight = f.light_source;
103 return f.param_type == CPT_LIGHT || f.light_source != 0;
106 u8 MapNode::getFaceDir(INodeDefManager *nodemgr) const
108 const ContentFeatures &f = nodemgr->get(*this);
109 if(f.param_type_2 == CPT2_FACEDIR)
110 return getParam2() & 0x03;
114 u8 MapNode::getWallMounted(INodeDefManager *nodemgr) const
116 const ContentFeatures &f = nodemgr->get(*this);
117 if(f.param_type_2 == CPT2_WALLMOUNTED)
118 return getParam2() & 0x07;
122 v3s16 MapNode::getWallMountedDir(INodeDefManager *nodemgr) const
124 switch(getWallMounted(nodemgr))
126 case 0: default: return v3s16(0,1,0);
127 case 1: return v3s16(0,-1,0);
128 case 2: return v3s16(1,0,0);
129 case 3: return v3s16(-1,0,0);
130 case 4: return v3s16(0,0,1);
131 case 5: return v3s16(0,0,-1);
137 u32 MapNode::serializedLength(u8 version)
139 if(!ser_ver_supported(version))
140 throw VersionMismatchException("ERROR: MapNode format not supported");
144 else if(version <= 9)
149 void MapNode::serialize(u8 *dest, u8 version)
151 if(!ser_ver_supported(version))
152 throw VersionMismatchException("ERROR: MapNode format not supported");
156 serialize_pre22(dest, version);
160 writeU8(dest+0, param0);
161 writeU8(dest+1, param1);
162 writeU8(dest+2, param2);
164 void MapNode::deSerialize(u8 *source, u8 version)
166 if(!ser_ver_supported(version))
167 throw VersionMismatchException("ERROR: MapNode format not supported");
171 deSerialize_pre22(source, version);
175 param0 = readU8(source+0);
176 param1 = readU8(source+1);
177 param2 = readU8(source+2);
179 void MapNode::serializeBulk(std::ostream &os, int version,
180 const MapNode *nodes, u32 nodecount,
181 u8 content_width, u8 params_width, bool compressed)
183 if(!ser_ver_supported(version))
184 throw VersionMismatchException("ERROR: MapNode format not supported");
186 assert(version >= 22);
187 assert(content_width == 1);
188 assert(params_width == 2);
190 SharedBuffer<u8> databuf(nodecount * (content_width + params_width));
193 if(content_width == 1)
195 for(u32 i=0; i<nodecount; i++)
196 writeU8(&databuf[i], nodes[i].param0);
198 /* If param0 is extended to two bytes, use something like this: */
199 /*else if(content_width == 2)
201 for(u32 i=0; i<nodecount; i++)
202 writeU16(&databuf[i*2], nodes[i].param0);
206 u32 start1 = content_width * nodecount;
207 for(u32 i=0; i<nodecount; i++)
208 writeU8(&databuf[start1 + i], nodes[i].param1);
211 u32 start2 = (content_width + 1) * nodecount;
212 for(u32 i=0; i<nodecount; i++)
213 writeU8(&databuf[start2 + i], nodes[i].param2);
216 Compress data to output stream
221 compressZlib(databuf, os);
225 os.write((const char*) &databuf[0], databuf.getSize());
229 // Deserialize bulk node data
230 void MapNode::deSerializeBulk(std::istream &is, int version,
231 MapNode *nodes, u32 nodecount,
232 u8 content_width, u8 params_width, bool compressed)
234 if(!ser_ver_supported(version))
235 throw VersionMismatchException("ERROR: MapNode format not supported");
237 assert(version >= 22);
238 assert(content_width == 1);
239 assert(params_width == 2);
241 // Uncompress or read data
242 u32 len = nodecount * (content_width + params_width);
243 SharedBuffer<u8> databuf(len);
246 std::ostringstream os(std::ios_base::binary);
247 decompressZlib(is, os);
248 std::string s = os.str();
250 throw SerializationError("deSerializeBulkNodes: "
251 "decompress resulted in invalid size");
252 memcpy(&databuf[0], s.c_str(), len);
256 is.read((char*) &databuf[0], len);
257 if(is.eof() || is.fail())
258 throw SerializationError("deSerializeBulkNodes: "
259 "failed to read bulk node data");
262 // Deserialize content
263 if(content_width == 1)
265 for(u32 i=0; i<nodecount; i++)
266 nodes[i].param0 = readU8(&databuf[i]);
268 /* If param0 is extended to two bytes, use something like this: */
269 /*else if(content_width == 2)
271 for(u32 i=0; i<nodecount; i++)
272 nodes[i].param0 = readU16(&databuf[i*2]);
275 // Deserialize param1
276 u32 start1 = content_width * nodecount;
277 for(u32 i=0; i<nodecount; i++)
278 nodes[i].param1 = readU8(&databuf[start1 + i]);
280 // Deserialize param2
281 u32 start2 = (content_width + 1) * nodecount;
282 for(u32 i=0; i<nodecount; i++)
283 nodes[i].param2 = readU8(&databuf[start2 + i]);
289 void MapNode::serialize_pre22(u8 *dest, u8 version)
291 // Translate to wanted version
292 MapNode n_foreign = mapnode_translate_from_internal(*this, version);
294 u8 actual_param0 = n_foreign.param0;
296 // Convert special values from new version to old
299 // In these versions, CONTENT_IGNORE and CONTENT_AIR
301 if(actual_param0 == CONTENT_IGNORE)
303 else if(actual_param0 == CONTENT_AIR)
309 dest[0] = actual_param0;
311 else if(version <= 9)
313 dest[0] = actual_param0;
314 dest[1] = n_foreign.param1;
318 dest[0] = actual_param0;
319 dest[1] = n_foreign.param1;
320 dest[2] = n_foreign.param2;
323 void MapNode::deSerialize_pre22(u8 *source, u8 version)
329 else if(version <= 9)
341 // Convert special values from old version to new
344 // In these versions, CONTENT_IGNORE and CONTENT_AIR
346 // Version 19 is fucked up with sometimes the old values and sometimes not
348 param0 = CONTENT_IGNORE;
349 else if(param0 == 254)
350 param0 = CONTENT_AIR;
353 // Translate to our known version
354 *this = mapnode_translate_to_internal(*this, version);