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-rw-r--r--src/mapnode.cpp420
1 files changed, 252 insertions, 168 deletions
diff --git a/src/mapnode.cpp b/src/mapnode.cpp
index a757149b1..bfadbeac5 100644
--- a/src/mapnode.cpp
+++ b/src/mapnode.cpp
@@ -21,136 +21,11 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "mapnode.h"
#include "porting.h"
#include <string>
-#include "mineral.h"
#include "main.h" // For g_settings
#include "nodedef.h"
#include "content_mapnode.h" // For mapnode_translate_*_internal
#include "serialization.h" // For ser_ver_supported
-#ifndef SERVER
-/*
- Nodes make a face if contents differ and solidness differs.
- Return value:
- 0: No face
- 1: Face uses m1's content
- 2: Face uses m2's content
- equivalent: Whether the blocks share the same face (eg. water and glass)
-
- TODO: Add 3: Both faces drawn with backface culling, remove equivalent
-*/
-u8 face_contents(content_t m1, content_t m2, bool *equivalent,
- INodeDefManager *nodemgr)
-{
- *equivalent = false;
-
- if(m1 == CONTENT_IGNORE || m2 == CONTENT_IGNORE)
- return 0;
-
- bool contents_differ = (m1 != m2);
-
- const ContentFeatures &f1 = nodemgr->get(m1);
- const ContentFeatures &f2 = nodemgr->get(m2);
-
- // Contents don't differ for different forms of same liquid
- if(f1.sameLiquid(f2))
- contents_differ = false;
-
- u8 c1 = f1.solidness;
- u8 c2 = f2.solidness;
-
- bool solidness_differs = (c1 != c2);
- bool makes_face = contents_differ && solidness_differs;
-
- if(makes_face == false)
- return 0;
-
- if(c1 == 0)
- c1 = f1.visual_solidness;
- if(c2 == 0)
- c2 = f2.visual_solidness;
-
- if(c1 == c2){
- *equivalent = true;
- // If same solidness, liquid takes precense
- if(f1.isLiquid())
- return 1;
- if(f2.isLiquid())
- return 2;
- }
-
- if(c1 > c2)
- return 1;
- else
- return 2;
-}
-#endif
-
-v3s16 facedir_rotate(u8 facedir, v3s16 dir)
-{
- /*
- Face 2 (normally Z-) direction:
- facedir=0: Z-
- facedir=1: X-
- facedir=2: Z+
- facedir=3: X+
- */
- v3s16 newdir;
- if(facedir==0) // Same
- newdir = v3s16(dir.X, dir.Y, dir.Z);
- else if(facedir == 1) // Face is taken from rotXZccv(-90)
- newdir = v3s16(-dir.Z, dir.Y, dir.X);
- else if(facedir == 2) // Face is taken from rotXZccv(180)
- newdir = v3s16(-dir.X, dir.Y, -dir.Z);
- else if(facedir == 3) // Face is taken from rotXZccv(90)
- newdir = v3s16(dir.Z, dir.Y, -dir.X);
- else
- newdir = dir;
- return newdir;
-}
-
-u8 packDir(v3s16 dir)
-{
- u8 b = 0;
-
- if(dir.X > 0)
- b |= (1<<0);
- else if(dir.X < 0)
- b |= (1<<1);
-
- if(dir.Y > 0)
- b |= (1<<2);
- else if(dir.Y < 0)
- b |= (1<<3);
-
- if(dir.Z > 0)
- b |= (1<<4);
- else if(dir.Z < 0)
- b |= (1<<5);
-
- return b;
-}
-v3s16 unpackDir(u8 b)
-{
- v3s16 d(0,0,0);
-
- if(b & (1<<0))
- d.X = 1;
- else if(b & (1<<1))
- d.X = -1;
-
- if(b & (1<<2))
- d.Y = 1;
- else if(b & (1<<3))
- d.Y = -1;
-
- if(b & (1<<4))
- d.Z = 1;
- else if(b & (1<<5))
- d.Z = -1;
-
- return d;
-}
-
/*
MapNode
*/
@@ -191,8 +66,9 @@ void MapNode::setLight(enum LightBank bank, u8 a_light, INodeDefManager *nodemgr
u8 MapNode::getLight(enum LightBank bank, INodeDefManager *nodemgr) const
{
// Select the brightest of [light source, propagated light]
+ const ContentFeatures &f = nodemgr->get(*this);
u8 light = 0;
- if(nodemgr->get(*this).param_type == CPT_LIGHT)
+ if(f.param_type == CPT_LIGHT)
{
if(bank == LIGHTBANK_DAY)
light = param1 & 0x0f;
@@ -201,38 +77,63 @@ u8 MapNode::getLight(enum LightBank bank, INodeDefManager *nodemgr) const
else
assert(0);
}
- if(nodemgr->get(*this).light_source > light)
- light = nodemgr->get(*this).light_source;
+ if(f.light_source > light)
+ light = f.light_source;
return light;
}
-u8 MapNode::getLightBanksWithSource(INodeDefManager *nodemgr) const
+bool MapNode::getLightBanks(u8 &lightday, u8 &lightnight, INodeDefManager *nodemgr) const
{
// Select the brightest of [light source, propagated light]
- u8 lightday = 0;
- u8 lightnight = 0;
- if(nodemgr->get(*this).param_type == CPT_LIGHT)
+ const ContentFeatures &f = nodemgr->get(*this);
+ if(f.param_type == CPT_LIGHT)
{
lightday = param1 & 0x0f;
lightnight = (param1>>4)&0x0f;
}
- if(nodemgr->get(*this).light_source > lightday)
- lightday = nodemgr->get(*this).light_source;
- if(nodemgr->get(*this).light_source > lightnight)
- lightnight = nodemgr->get(*this).light_source;
- return (lightday&0x0f) | ((lightnight<<4)&0xf0);
+ else
+ {
+ lightday = 0;
+ lightnight = 0;
+ }
+ if(f.light_source > lightday)
+ lightday = f.light_source;
+ if(f.light_source > lightnight)
+ lightnight = f.light_source;
+ return f.param_type == CPT_LIGHT || f.light_source != 0;
}
-u8 MapNode::getMineral(INodeDefManager *nodemgr) const
+u8 MapNode::getFaceDir(INodeDefManager *nodemgr) const
{
- if(nodemgr->get(*this).param_type == CPT_MINERAL)
+ const ContentFeatures &f = nodemgr->get(*this);
+ if(f.param_type_2 == CPT2_FACEDIR)
+ return getParam2() & 0x03;
+ return 0;
+}
+
+u8 MapNode::getWallMounted(INodeDefManager *nodemgr) const
+{
+ const ContentFeatures &f = nodemgr->get(*this);
+ if(f.param_type_2 == CPT2_WALLMOUNTED)
+ return getParam2() & 0x07;
+ return 0;
+}
+
+v3s16 MapNode::getWallMountedDir(INodeDefManager *nodemgr) const
+{
+ switch(getWallMounted(nodemgr))
{
- return param1 & 0x0f;
+ case 0: default: return v3s16(0,1,0);
+ case 1: return v3s16(0,-1,0);
+ case 2: return v3s16(1,0,0);
+ case 3: return v3s16(-1,0,0);
+ case 4: return v3s16(0,0,1);
+ case 5: return v3s16(0,0,-1);
}
-
- return MINERAL_NONE;
}
+
+
u32 MapNode::serializedLength(u8 version)
{
if(!ser_ver_supported(version))
@@ -249,49 +150,179 @@ void MapNode::serialize(u8 *dest, u8 version)
{
if(!ser_ver_supported(version))
throw VersionMismatchException("ERROR: MapNode format not supported");
+
+ if(version <= 21)
+ {
+ serialize_pre22(dest, version);
+ return;
+ }
+
+ writeU8(dest+0, param0);
+ writeU8(dest+1, param1);
+ writeU8(dest+2, param2);
+}
+void MapNode::deSerialize(u8 *source, u8 version)
+{
+ if(!ser_ver_supported(version))
+ throw VersionMismatchException("ERROR: MapNode format not supported");
+ if(version <= 21)
+ {
+ deSerialize_pre22(source, version);
+ return;
+ }
+
+ param0 = readU8(source+0);
+ param1 = readU8(source+1);
+ param2 = readU8(source+2);
+}
+void MapNode::serializeBulk(std::ostream &os, int version,
+ const MapNode *nodes, u32 nodecount,
+ u8 content_width, u8 params_width, bool compressed)
+{
+ if(!ser_ver_supported(version))
+ throw VersionMismatchException("ERROR: MapNode format not supported");
+
+ assert(version >= 22);
+ assert(content_width == 1);
+ assert(params_width == 2);
+
+ SharedBuffer<u8> databuf(nodecount * (content_width + params_width));
+
+ // Serialize content
+ if(content_width == 1)
+ {
+ for(u32 i=0; i<nodecount; i++)
+ writeU8(&databuf[i], nodes[i].param0);
+ }
+ /* If param0 is extended to two bytes, use something like this: */
+ /*else if(content_width == 2)
+ {
+ for(u32 i=0; i<nodecount; i++)
+ writeU16(&databuf[i*2], nodes[i].param0);
+ }*/
+
+ // Serialize param1
+ u32 start1 = content_width * nodecount;
+ for(u32 i=0; i<nodecount; i++)
+ writeU8(&databuf[start1 + i], nodes[i].param1);
+
+ // Serialize param2
+ u32 start2 = (content_width + 1) * nodecount;
+ for(u32 i=0; i<nodecount; i++)
+ writeU8(&databuf[start2 + i], nodes[i].param2);
+
+ /*
+ Compress data to output stream
+ */
+
+ if(compressed)
+ {
+ compressZlib(databuf, os);
+ }
+ else
+ {
+ os.write((const char*) &databuf[0], databuf.getSize());
+ }
+}
+
+// Deserialize bulk node data
+void MapNode::deSerializeBulk(std::istream &is, int version,
+ MapNode *nodes, u32 nodecount,
+ u8 content_width, u8 params_width, bool compressed)
+{
+ if(!ser_ver_supported(version))
+ throw VersionMismatchException("ERROR: MapNode format not supported");
+
+ assert(version >= 22);
+ assert(content_width == 1);
+ assert(params_width == 2);
+
+ // Uncompress or read data
+ u32 len = nodecount * (content_width + params_width);
+ SharedBuffer<u8> databuf(len);
+ if(compressed)
+ {
+ std::ostringstream os(std::ios_base::binary);
+ decompressZlib(is, os);
+ std::string s = os.str();
+ if(s.size() != len)
+ throw SerializationError("deSerializeBulkNodes: "
+ "decompress resulted in invalid size");
+ memcpy(&databuf[0], s.c_str(), len);
+ }
+ else
+ {
+ is.read((char*) &databuf[0], len);
+ if(is.eof() || is.fail())
+ throw SerializationError("deSerializeBulkNodes: "
+ "failed to read bulk node data");
+ }
+
+ // Deserialize content
+ if(content_width == 1)
+ {
+ for(u32 i=0; i<nodecount; i++)
+ nodes[i].param0 = readU8(&databuf[i]);
+ }
+ /* If param0 is extended to two bytes, use something like this: */
+ /*else if(content_width == 2)
+ {
+ for(u32 i=0; i<nodecount; i++)
+ nodes[i].param0 = readU16(&databuf[i*2]);
+ }*/
+
+ // Deserialize param1
+ u32 start1 = content_width * nodecount;
+ for(u32 i=0; i<nodecount; i++)
+ nodes[i].param1 = readU8(&databuf[start1 + i]);
+
+ // Deserialize param2
+ u32 start2 = (content_width + 1) * nodecount;
+ for(u32 i=0; i<nodecount; i++)
+ nodes[i].param2 = readU8(&databuf[start2 + i]);
+}
+
+/*
+ Legacy serialization
+*/
+void MapNode::serialize_pre22(u8 *dest, u8 version)
+{
// Translate to wanted version
MapNode n_foreign = mapnode_translate_from_internal(*this, version);
- u8 actual_param0 = n_foreign.param0;
+ u16 actual_content = n_foreign.param0;
// Convert special values from new version to old
if(version <= 18)
{
// In these versions, CONTENT_IGNORE and CONTENT_AIR
// are 255 and 254
- if(actual_param0 == CONTENT_IGNORE)
- actual_param0 = 255;
- else if(actual_param0 == CONTENT_AIR)
- actual_param0 = 254;
+ if(actual_content == CONTENT_IGNORE)
+ actual_content = 255;
+ else if(actual_content == CONTENT_AIR)
+ actual_content = 254;
}
if(version == 0)
{
- dest[0] = actual_param0;
+ dest[0] = actual_content;
}
else if(version <= 9)
{
- dest[0] = actual_param0;
+ dest[0] = actual_content;
dest[1] = n_foreign.param1;
}
else
{
- dest[0] = actual_param0;
+ dest[0] = actual_content;
dest[1] = n_foreign.param1;
dest[2] = n_foreign.param2;
}
}
-void MapNode::deSerialize(u8 *source, u8 version)
+void MapNode::deSerialize_pre22(u8 *source, u8 version)
{
- if(!ser_ver_supported(version))
- throw VersionMismatchException("ERROR: MapNode format not supported");
-
- if(version == 0)
- {
- param0 = source[0];
- }
- else if(version == 1)
+ if(version <= 1)
{
param0 = source[0];
}
@@ -308,18 +339,11 @@ void MapNode::deSerialize(u8 *source, u8 version)
}
// Convert special values from old version to new
- if(version <= 18)
+ if(version <= 19)
{
// In these versions, CONTENT_IGNORE and CONTENT_AIR
// are 255 and 254
- if(param0 == 255)
- param0 = CONTENT_IGNORE;
- else if(param0 == 254)
- param0 = CONTENT_AIR;
- }
- // version 19 is fucked up with sometimes the old values and sometimes not
- if(version == 19)
- {
+ // Version 19 is fucked up with sometimes the old values and sometimes not
if(param0 == 255)
param0 = CONTENT_IGNORE;
else if(param0 == 254)
@@ -330,6 +354,65 @@ void MapNode::deSerialize(u8 *source, u8 version)
*this = mapnode_translate_to_internal(*this, version);
}
+
+#ifndef SERVER
+
+/*
+ Nodes make a face if contents differ and solidness differs.
+ Return value:
+ 0: No face
+ 1: Face uses m1's content
+ 2: Face uses m2's content
+ equivalent: Whether the blocks share the same face (eg. water and glass)
+
+ TODO: Add 3: Both faces drawn with backface culling, remove equivalent
+*/
+u8 face_contents(content_t m1, content_t m2, bool *equivalent,
+ INodeDefManager *nodemgr)
+{
+ *equivalent = false;
+
+ if(m1 == CONTENT_IGNORE || m2 == CONTENT_IGNORE)
+ return 0;
+
+ bool contents_differ = (m1 != m2);
+
+ const ContentFeatures &f1 = nodemgr->get(m1);
+ const ContentFeatures &f2 = nodemgr->get(m2);
+
+ // Contents don't differ for different forms of same liquid
+ if(f1.sameLiquid(f2))
+ contents_differ = false;
+
+ u8 c1 = f1.solidness;
+ u8 c2 = f2.solidness;
+
+ bool solidness_differs = (c1 != c2);
+ bool makes_face = contents_differ && solidness_differs;
+
+ if(makes_face == false)
+ return 0;
+
+ if(c1 == 0)
+ c1 = f1.visual_solidness;
+ if(c2 == 0)
+ c2 = f2.visual_solidness;
+
+ if(c1 == c2){
+ *equivalent = true;
+ // If same solidness, liquid takes precense
+ if(f1.isLiquid())
+ return 1;
+ if(f2.isLiquid())
+ return 2;
+ }
+
+ if(c1 > c2)
+ return 1;
+ else
+ return 2;
+}
+
/*
Gets lighting value at face of node
@@ -380,4 +463,5 @@ u8 getFaceLight(u32 daynight_ratio, MapNode n, MapNode n2,
}
}
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-01 05:26:51 +0000