forked from Mirrorlandia_minetest/minetest
d1624a5521
* Add zstd support. * Rearrange serialization order * Compress entire mapblock Co-authored-by: sfan5 <sfan5@live.de>
860 lines
21 KiB
C++
860 lines
21 KiB
C++
/*
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Minetest
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Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "irrlichttypes_extrabloated.h"
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#include "mapnode.h"
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#include "porting.h"
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#include "nodedef.h"
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#include "map.h"
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#include "content_mapnode.h" // For mapnode_translate_*_internal
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#include "serialization.h" // For ser_ver_supported
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#include "util/serialize.h"
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#include "log.h"
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#include "util/directiontables.h"
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#include "util/numeric.h"
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#include <string>
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#include <sstream>
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static const Rotation wallmounted_to_rot[] = {
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ROTATE_0, ROTATE_180, ROTATE_90, ROTATE_270
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};
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static const u8 rot_to_wallmounted[] = {
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2, 4, 3, 5
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};
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/*
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MapNode
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*/
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void MapNode::getColor(const ContentFeatures &f, video::SColor *color) const
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{
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if (f.palette) {
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*color = (*f.palette)[param2];
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return;
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}
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*color = f.color;
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}
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void MapNode::setLight(LightBank bank, u8 a_light, const ContentFeatures &f) noexcept
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{
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// If node doesn't contain light data, ignore this
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if(f.param_type != CPT_LIGHT)
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return;
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if(bank == LIGHTBANK_DAY)
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{
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param1 &= 0xf0;
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param1 |= a_light & 0x0f;
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}
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else if(bank == LIGHTBANK_NIGHT)
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{
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param1 &= 0x0f;
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param1 |= (a_light & 0x0f)<<4;
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}
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else
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assert("Invalid light bank" == NULL);
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}
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void MapNode::setLight(LightBank bank, u8 a_light, const NodeDefManager *nodemgr)
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{
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setLight(bank, a_light, nodemgr->get(*this));
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}
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bool MapNode::isLightDayNightEq(const NodeDefManager *nodemgr) const
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{
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const ContentFeatures &f = nodemgr->get(*this);
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bool isEqual;
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if (f.param_type == CPT_LIGHT) {
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u8 day = MYMAX(f.light_source, param1 & 0x0f);
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u8 night = MYMAX(f.light_source, (param1 >> 4) & 0x0f);
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isEqual = day == night;
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} else {
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isEqual = true;
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}
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return isEqual;
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}
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u8 MapNode::getLight(LightBank bank, const NodeDefManager *nodemgr) const
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{
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// Select the brightest of [light source, propagated light]
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const ContentFeatures &f = nodemgr->get(*this);
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u8 light;
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if(f.param_type == CPT_LIGHT)
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light = bank == LIGHTBANK_DAY ? param1 & 0x0f : (param1 >> 4) & 0x0f;
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else
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light = 0;
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return MYMAX(f.light_source, light);
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}
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u8 MapNode::getLightRaw(LightBank bank, const ContentFeatures &f) const noexcept
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{
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if(f.param_type == CPT_LIGHT)
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return bank == LIGHTBANK_DAY ? param1 & 0x0f : (param1 >> 4) & 0x0f;
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return 0;
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}
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u8 MapNode::getLightNoChecks(LightBank bank, const ContentFeatures *f) const noexcept
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{
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return MYMAX(f->light_source,
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bank == LIGHTBANK_DAY ? param1 & 0x0f : (param1 >> 4) & 0x0f);
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}
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bool MapNode::getLightBanks(u8 &lightday, u8 &lightnight,
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const NodeDefManager *nodemgr) const
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{
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// Select the brightest of [light source, propagated light]
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const ContentFeatures &f = nodemgr->get(*this);
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if(f.param_type == CPT_LIGHT)
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{
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lightday = param1 & 0x0f;
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lightnight = (param1>>4)&0x0f;
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}
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else
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{
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lightday = 0;
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lightnight = 0;
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}
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if(f.light_source > lightday)
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lightday = f.light_source;
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if(f.light_source > lightnight)
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lightnight = f.light_source;
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return f.param_type == CPT_LIGHT || f.light_source != 0;
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}
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u8 MapNode::getFaceDir(const NodeDefManager *nodemgr,
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bool allow_wallmounted) const
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{
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const ContentFeatures &f = nodemgr->get(*this);
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if (f.param_type_2 == CPT2_FACEDIR ||
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f.param_type_2 == CPT2_COLORED_FACEDIR)
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return (getParam2() & 0x1F) % 24;
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if (allow_wallmounted && (f.param_type_2 == CPT2_WALLMOUNTED ||
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f.param_type_2 == CPT2_COLORED_WALLMOUNTED))
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return wallmounted_to_facedir[getParam2() & 0x07];
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return 0;
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}
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u8 MapNode::getWallMounted(const NodeDefManager *nodemgr) const
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{
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const ContentFeatures &f = nodemgr->get(*this);
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if (f.param_type_2 == CPT2_WALLMOUNTED ||
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f.param_type_2 == CPT2_COLORED_WALLMOUNTED) {
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return getParam2() & 0x07;
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} else if (f.drawtype == NDT_SIGNLIKE || f.drawtype == NDT_TORCHLIKE ||
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f.drawtype == NDT_PLANTLIKE ||
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f.drawtype == NDT_PLANTLIKE_ROOTED) {
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return 1;
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}
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return 0;
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}
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v3s16 MapNode::getWallMountedDir(const NodeDefManager *nodemgr) const
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{
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switch(getWallMounted(nodemgr))
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{
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case 0: default: return v3s16(0,1,0);
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case 1: return v3s16(0,-1,0);
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case 2: return v3s16(1,0,0);
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case 3: return v3s16(-1,0,0);
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case 4: return v3s16(0,0,1);
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case 5: return v3s16(0,0,-1);
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}
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}
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u8 MapNode::getDegRotate(const NodeDefManager *nodemgr) const
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{
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const ContentFeatures &f = nodemgr->get(*this);
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if (f.param_type_2 == CPT2_DEGROTATE)
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return getParam2() % 240;
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if (f.param_type_2 == CPT2_COLORED_DEGROTATE)
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return 10 * ((getParam2() & 0x1F) % 24);
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return 0;
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}
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void MapNode::rotateAlongYAxis(const NodeDefManager *nodemgr, Rotation rot)
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{
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ContentParamType2 cpt2 = nodemgr->get(*this).param_type_2;
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if (cpt2 == CPT2_FACEDIR || cpt2 == CPT2_COLORED_FACEDIR) {
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static const u8 rotate_facedir[24 * 4] = {
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// Table value = rotated facedir
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// Columns: 0, 90, 180, 270 degrees rotation around vertical axis
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// Rotation is anticlockwise as seen from above (+Y)
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0, 1, 2, 3, // Initial facedir 0 to 3
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1, 2, 3, 0,
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2, 3, 0, 1,
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3, 0, 1, 2,
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4, 13, 10, 19, // 4 to 7
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5, 14, 11, 16,
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6, 15, 8, 17,
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7, 12, 9, 18,
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8, 17, 6, 15, // 8 to 11
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9, 18, 7, 12,
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10, 19, 4, 13,
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11, 16, 5, 14,
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12, 9, 18, 7, // 12 to 15
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13, 10, 19, 4,
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14, 11, 16, 5,
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15, 8, 17, 6,
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16, 5, 14, 11, // 16 to 19
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17, 6, 15, 8,
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18, 7, 12, 9,
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19, 4, 13, 10,
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20, 23, 22, 21, // 20 to 23
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21, 20, 23, 22,
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22, 21, 20, 23,
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23, 22, 21, 20
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};
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u8 facedir = (param2 & 31) % 24;
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u8 index = facedir * 4 + rot;
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param2 &= ~31;
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param2 |= rotate_facedir[index];
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} else if (cpt2 == CPT2_WALLMOUNTED ||
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cpt2 == CPT2_COLORED_WALLMOUNTED) {
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u8 wmountface = (param2 & 7);
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if (wmountface <= 1)
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return;
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Rotation oldrot = wallmounted_to_rot[wmountface - 2];
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param2 &= ~7;
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param2 |= rot_to_wallmounted[(oldrot - rot) & 3];
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} else if (cpt2 == CPT2_DEGROTATE) {
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int angle = param2; // in 1.5°
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angle += 60 * rot; // don’t do that on u8
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angle %= 240;
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param2 = angle;
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} else if (cpt2 == CPT2_COLORED_DEGROTATE) {
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int angle = param2 & 0x1F; // in 15°
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int color = param2 & 0xE0;
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angle += 6 * rot;
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angle %= 24;
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param2 = color | angle;
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}
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}
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void transformNodeBox(const MapNode &n, const NodeBox &nodebox,
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const NodeDefManager *nodemgr, std::vector<aabb3f> *p_boxes,
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u8 neighbors = 0)
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{
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std::vector<aabb3f> &boxes = *p_boxes;
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if (nodebox.type == NODEBOX_FIXED || nodebox.type == NODEBOX_LEVELED) {
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const std::vector<aabb3f> &fixed = nodebox.fixed;
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int facedir = n.getFaceDir(nodemgr, true);
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u8 axisdir = facedir>>2;
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facedir&=0x03;
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for (aabb3f box : fixed) {
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if (nodebox.type == NODEBOX_LEVELED)
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box.MaxEdge.Y = (-0.5f + n.getLevel(nodemgr) / 64.0f) * BS;
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switch (axisdir) {
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case 0:
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if(facedir == 1)
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{
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box.MinEdge.rotateXZBy(-90);
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box.MaxEdge.rotateXZBy(-90);
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}
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else if(facedir == 2)
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{
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box.MinEdge.rotateXZBy(180);
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box.MaxEdge.rotateXZBy(180);
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}
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else if(facedir == 3)
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{
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box.MinEdge.rotateXZBy(90);
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box.MaxEdge.rotateXZBy(90);
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}
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break;
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case 1: // z+
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box.MinEdge.rotateYZBy(90);
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box.MaxEdge.rotateYZBy(90);
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if(facedir == 1)
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{
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box.MinEdge.rotateXYBy(90);
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box.MaxEdge.rotateXYBy(90);
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}
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else if(facedir == 2)
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{
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box.MinEdge.rotateXYBy(180);
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box.MaxEdge.rotateXYBy(180);
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}
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else if(facedir == 3)
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{
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box.MinEdge.rotateXYBy(-90);
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box.MaxEdge.rotateXYBy(-90);
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}
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break;
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case 2: //z-
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box.MinEdge.rotateYZBy(-90);
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box.MaxEdge.rotateYZBy(-90);
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if(facedir == 1)
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{
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box.MinEdge.rotateXYBy(-90);
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box.MaxEdge.rotateXYBy(-90);
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}
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else if(facedir == 2)
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{
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box.MinEdge.rotateXYBy(180);
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box.MaxEdge.rotateXYBy(180);
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}
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else if(facedir == 3)
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{
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box.MinEdge.rotateXYBy(90);
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box.MaxEdge.rotateXYBy(90);
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}
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break;
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case 3: //x+
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box.MinEdge.rotateXYBy(-90);
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box.MaxEdge.rotateXYBy(-90);
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if(facedir == 1)
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{
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box.MinEdge.rotateYZBy(90);
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box.MaxEdge.rotateYZBy(90);
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}
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else if(facedir == 2)
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{
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box.MinEdge.rotateYZBy(180);
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box.MaxEdge.rotateYZBy(180);
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}
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else if(facedir == 3)
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{
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box.MinEdge.rotateYZBy(-90);
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box.MaxEdge.rotateYZBy(-90);
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}
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break;
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case 4: //x-
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box.MinEdge.rotateXYBy(90);
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box.MaxEdge.rotateXYBy(90);
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if(facedir == 1)
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{
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box.MinEdge.rotateYZBy(-90);
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box.MaxEdge.rotateYZBy(-90);
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}
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else if(facedir == 2)
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{
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box.MinEdge.rotateYZBy(180);
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box.MaxEdge.rotateYZBy(180);
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}
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else if(facedir == 3)
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{
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box.MinEdge.rotateYZBy(90);
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box.MaxEdge.rotateYZBy(90);
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}
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break;
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case 5:
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box.MinEdge.rotateXYBy(-180);
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box.MaxEdge.rotateXYBy(-180);
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if(facedir == 1)
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{
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box.MinEdge.rotateXZBy(90);
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box.MaxEdge.rotateXZBy(90);
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}
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else if(facedir == 2)
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{
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box.MinEdge.rotateXZBy(180);
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box.MaxEdge.rotateXZBy(180);
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}
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else if(facedir == 3)
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{
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box.MinEdge.rotateXZBy(-90);
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box.MaxEdge.rotateXZBy(-90);
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}
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break;
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default:
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break;
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}
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box.repair();
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boxes.push_back(box);
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}
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}
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else if(nodebox.type == NODEBOX_WALLMOUNTED)
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{
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v3s16 dir = n.getWallMountedDir(nodemgr);
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// top
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if(dir == v3s16(0,1,0))
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{
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boxes.push_back(nodebox.wall_top);
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}
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// bottom
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else if(dir == v3s16(0,-1,0))
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{
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boxes.push_back(nodebox.wall_bottom);
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}
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// side
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else
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{
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v3f vertices[2] =
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{
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nodebox.wall_side.MinEdge,
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nodebox.wall_side.MaxEdge
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};
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for (v3f &vertex : vertices) {
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if(dir == v3s16(-1,0,0))
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vertex.rotateXZBy(0);
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if(dir == v3s16(1,0,0))
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vertex.rotateXZBy(180);
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if(dir == v3s16(0,0,-1))
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vertex.rotateXZBy(90);
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if(dir == v3s16(0,0,1))
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vertex.rotateXZBy(-90);
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}
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aabb3f box = aabb3f(vertices[0]);
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box.addInternalPoint(vertices[1]);
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boxes.push_back(box);
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}
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}
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else if (nodebox.type == NODEBOX_CONNECTED)
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{
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size_t boxes_size = boxes.size();
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boxes_size += nodebox.fixed.size();
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if (neighbors & 1)
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boxes_size += nodebox.connect_top.size();
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else
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boxes_size += nodebox.disconnected_top.size();
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if (neighbors & 2)
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boxes_size += nodebox.connect_bottom.size();
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else
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boxes_size += nodebox.disconnected_bottom.size();
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if (neighbors & 4)
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boxes_size += nodebox.connect_front.size();
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else
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boxes_size += nodebox.disconnected_front.size();
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if (neighbors & 8)
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boxes_size += nodebox.connect_left.size();
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else
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boxes_size += nodebox.disconnected_left.size();
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if (neighbors & 16)
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boxes_size += nodebox.connect_back.size();
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else
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boxes_size += nodebox.disconnected_back.size();
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if (neighbors & 32)
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boxes_size += nodebox.connect_right.size();
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else
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boxes_size += nodebox.disconnected_right.size();
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if (neighbors == 0)
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boxes_size += nodebox.disconnected.size();
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if (neighbors < 4)
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boxes_size += nodebox.disconnected_sides.size();
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boxes.reserve(boxes_size);
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#define BOXESPUSHBACK(c) \
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for (std::vector<aabb3f>::const_iterator \
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it = (c).begin(); \
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it != (c).end(); ++it) \
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(boxes).push_back(*it);
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BOXESPUSHBACK(nodebox.fixed);
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if (neighbors & 1) {
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BOXESPUSHBACK(nodebox.connect_top);
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} else {
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BOXESPUSHBACK(nodebox.disconnected_top);
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}
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if (neighbors & 2) {
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BOXESPUSHBACK(nodebox.connect_bottom);
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} else {
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BOXESPUSHBACK(nodebox.disconnected_bottom);
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}
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if (neighbors & 4) {
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BOXESPUSHBACK(nodebox.connect_front);
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} else {
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BOXESPUSHBACK(nodebox.disconnected_front);
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}
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if (neighbors & 8) {
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BOXESPUSHBACK(nodebox.connect_left);
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} else {
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BOXESPUSHBACK(nodebox.disconnected_left);
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}
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if (neighbors & 16) {
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BOXESPUSHBACK(nodebox.connect_back);
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} else {
|
||
BOXESPUSHBACK(nodebox.disconnected_back);
|
||
}
|
||
|
||
if (neighbors & 32) {
|
||
BOXESPUSHBACK(nodebox.connect_right);
|
||
} else {
|
||
BOXESPUSHBACK(nodebox.disconnected_right);
|
||
}
|
||
|
||
if (neighbors == 0) {
|
||
BOXESPUSHBACK(nodebox.disconnected);
|
||
}
|
||
|
||
if (neighbors < 4) {
|
||
BOXESPUSHBACK(nodebox.disconnected_sides);
|
||
}
|
||
|
||
}
|
||
else // NODEBOX_REGULAR
|
||
{
|
||
boxes.emplace_back(-BS/2,-BS/2,-BS/2,BS/2,BS/2,BS/2);
|
||
}
|
||
}
|
||
|
||
static inline void getNeighborConnectingFace(
|
||
const v3s16 &p, const NodeDefManager *nodedef,
|
||
Map *map, MapNode n, u8 bitmask, u8 *neighbors)
|
||
{
|
||
MapNode n2 = map->getNode(p);
|
||
if (nodedef->nodeboxConnects(n, n2, bitmask))
|
||
*neighbors |= bitmask;
|
||
}
|
||
|
||
u8 MapNode::getNeighbors(v3s16 p, Map *map) const
|
||
{
|
||
const NodeDefManager *nodedef = map->getNodeDefManager();
|
||
u8 neighbors = 0;
|
||
const ContentFeatures &f = nodedef->get(*this);
|
||
// locate possible neighboring nodes to connect to
|
||
if (f.drawtype == NDT_NODEBOX && f.node_box.type == NODEBOX_CONNECTED) {
|
||
v3s16 p2 = p;
|
||
|
||
p2.Y++;
|
||
getNeighborConnectingFace(p2, nodedef, map, *this, 1, &neighbors);
|
||
|
||
p2 = p;
|
||
p2.Y--;
|
||
getNeighborConnectingFace(p2, nodedef, map, *this, 2, &neighbors);
|
||
|
||
p2 = p;
|
||
p2.Z--;
|
||
getNeighborConnectingFace(p2, nodedef, map, *this, 4, &neighbors);
|
||
|
||
p2 = p;
|
||
p2.X--;
|
||
getNeighborConnectingFace(p2, nodedef, map, *this, 8, &neighbors);
|
||
|
||
p2 = p;
|
||
p2.Z++;
|
||
getNeighborConnectingFace(p2, nodedef, map, *this, 16, &neighbors);
|
||
|
||
p2 = p;
|
||
p2.X++;
|
||
getNeighborConnectingFace(p2, nodedef, map, *this, 32, &neighbors);
|
||
}
|
||
|
||
return neighbors;
|
||
}
|
||
|
||
void MapNode::getNodeBoxes(const NodeDefManager *nodemgr,
|
||
std::vector<aabb3f> *boxes, u8 neighbors) const
|
||
{
|
||
const ContentFeatures &f = nodemgr->get(*this);
|
||
transformNodeBox(*this, f.node_box, nodemgr, boxes, neighbors);
|
||
}
|
||
|
||
void MapNode::getCollisionBoxes(const NodeDefManager *nodemgr,
|
||
std::vector<aabb3f> *boxes, u8 neighbors) const
|
||
{
|
||
const ContentFeatures &f = nodemgr->get(*this);
|
||
if (f.collision_box.fixed.empty())
|
||
transformNodeBox(*this, f.node_box, nodemgr, boxes, neighbors);
|
||
else
|
||
transformNodeBox(*this, f.collision_box, nodemgr, boxes, neighbors);
|
||
}
|
||
|
||
void MapNode::getSelectionBoxes(const NodeDefManager *nodemgr,
|
||
std::vector<aabb3f> *boxes, u8 neighbors) const
|
||
{
|
||
const ContentFeatures &f = nodemgr->get(*this);
|
||
transformNodeBox(*this, f.selection_box, nodemgr, boxes, neighbors);
|
||
}
|
||
|
||
u8 MapNode::getMaxLevel(const NodeDefManager *nodemgr) const
|
||
{
|
||
const ContentFeatures &f = nodemgr->get(*this);
|
||
// todo: after update in all games leave only if (f.param_type_2 ==
|
||
if( f.liquid_type == LIQUID_FLOWING || f.param_type_2 == CPT2_FLOWINGLIQUID)
|
||
return LIQUID_LEVEL_MAX;
|
||
if(f.leveled || f.param_type_2 == CPT2_LEVELED)
|
||
return f.leveled_max;
|
||
return 0;
|
||
}
|
||
|
||
u8 MapNode::getLevel(const NodeDefManager *nodemgr) const
|
||
{
|
||
const ContentFeatures &f = nodemgr->get(*this);
|
||
// todo: after update in all games leave only if (f.param_type_2 ==
|
||
if(f.liquid_type == LIQUID_SOURCE)
|
||
return LIQUID_LEVEL_SOURCE;
|
||
if (f.param_type_2 == CPT2_FLOWINGLIQUID)
|
||
return getParam2() & LIQUID_LEVEL_MASK;
|
||
if(f.liquid_type == LIQUID_FLOWING) // can remove if all param_type_2 setted
|
||
return getParam2() & LIQUID_LEVEL_MASK;
|
||
if (f.param_type_2 == CPT2_LEVELED) {
|
||
u8 level = getParam2() & LEVELED_MASK;
|
||
if (level)
|
||
return level;
|
||
}
|
||
// Return static value from nodedef if param2 isn't used for level
|
||
if (f.leveled > f.leveled_max)
|
||
return f.leveled_max;
|
||
return f.leveled;
|
||
}
|
||
|
||
s8 MapNode::setLevel(const NodeDefManager *nodemgr, s16 level)
|
||
{
|
||
s8 rest = 0;
|
||
const ContentFeatures &f = nodemgr->get(*this);
|
||
if (f.param_type_2 == CPT2_FLOWINGLIQUID
|
||
|| f.liquid_type == LIQUID_FLOWING
|
||
|| f.liquid_type == LIQUID_SOURCE) {
|
||
if (level <= 0) { // liquid can’t exist with zero level
|
||
setContent(CONTENT_AIR);
|
||
return 0;
|
||
}
|
||
if (level >= LIQUID_LEVEL_SOURCE) {
|
||
rest = level - LIQUID_LEVEL_SOURCE;
|
||
setContent(f.liquid_alternative_source_id);
|
||
setParam2(0);
|
||
} else {
|
||
setContent(f.liquid_alternative_flowing_id);
|
||
setParam2((level & LIQUID_LEVEL_MASK) | (getParam2() & ~LIQUID_LEVEL_MASK));
|
||
}
|
||
} else if (f.param_type_2 == CPT2_LEVELED) {
|
||
if (level < 0) { // zero means default for a leveled nodebox
|
||
rest = level;
|
||
level = 0;
|
||
} else if (level > f.leveled_max) {
|
||
rest = level - f.leveled_max;
|
||
level = f.leveled_max;
|
||
}
|
||
setParam2((level & LEVELED_MASK) | (getParam2() & ~LEVELED_MASK));
|
||
}
|
||
return rest;
|
||
}
|
||
|
||
s8 MapNode::addLevel(const NodeDefManager *nodemgr, s16 add)
|
||
{
|
||
s16 level = getLevel(nodemgr);
|
||
level += add;
|
||
return setLevel(nodemgr, level);
|
||
}
|
||
|
||
u32 MapNode::serializedLength(u8 version)
|
||
{
|
||
if(!ser_ver_supported(version))
|
||
throw VersionMismatchException("ERROR: MapNode format not supported");
|
||
|
||
if (version == 0)
|
||
return 1;
|
||
|
||
if (version <= 9)
|
||
return 2;
|
||
|
||
if (version <= 23)
|
||
return 3;
|
||
|
||
return 4;
|
||
}
|
||
void MapNode::serialize(u8 *dest, u8 version) const
|
||
{
|
||
if(!ser_ver_supported(version))
|
||
throw VersionMismatchException("ERROR: MapNode format not supported");
|
||
|
||
// Can't do this anymore; we have 16-bit dynamically allocated node IDs
|
||
// in memory; conversion just won't work in this direction.
|
||
if(version < 24)
|
||
throw SerializationError("MapNode::serialize: serialization to "
|
||
"version < 24 not possible");
|
||
|
||
writeU16(dest+0, param0);
|
||
writeU8(dest+2, param1);
|
||
writeU8(dest+3, 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;
|
||
}
|
||
|
||
if(version >= 24){
|
||
param0 = readU16(source+0);
|
||
param1 = readU8(source+2);
|
||
param2 = readU8(source+3);
|
||
}else{
|
||
param0 = readU8(source+0);
|
||
param1 = readU8(source+1);
|
||
param2 = readU8(source+2);
|
||
if(param0 > 0x7F){
|
||
param0 |= ((param2&0xF0)<<4);
|
||
param2 &= 0x0F;
|
||
}
|
||
}
|
||
}
|
||
|
||
SharedBuffer<u8> MapNode::serializeBulk(int version,
|
||
const MapNode *nodes, u32 nodecount,
|
||
u8 content_width, u8 params_width)
|
||
{
|
||
if (!ser_ver_supported(version))
|
||
throw VersionMismatchException("ERROR: MapNode format not supported");
|
||
|
||
sanity_check(content_width == 2);
|
||
sanity_check(params_width == 2);
|
||
|
||
// Can't do this anymore; we have 16-bit dynamically allocated node IDs
|
||
// in memory; conversion just won't work in this direction.
|
||
if (version < 24)
|
||
throw SerializationError("MapNode::serializeBulk: serialization to "
|
||
"version < 24 not possible");
|
||
|
||
SharedBuffer<u8> databuf(nodecount * (content_width + params_width));
|
||
|
||
u32 start1 = content_width * nodecount;
|
||
u32 start2 = (content_width + 1) * nodecount;
|
||
|
||
// Serialize content
|
||
for (u32 i = 0; i < nodecount; i++) {
|
||
writeU16(&databuf[i * 2], nodes[i].param0);
|
||
writeU8(&databuf[start1 + i], nodes[i].param1);
|
||
writeU8(&databuf[start2 + i], nodes[i].param2);
|
||
}
|
||
return databuf;
|
||
}
|
||
|
||
// Deserialize bulk node data
|
||
void MapNode::deSerializeBulk(std::istream &is, int version,
|
||
MapNode *nodes, u32 nodecount,
|
||
u8 content_width, u8 params_width)
|
||
{
|
||
if(!ser_ver_supported(version))
|
||
throw VersionMismatchException("ERROR: MapNode format not supported");
|
||
|
||
if (version < 22
|
||
|| (content_width != 1 && content_width != 2)
|
||
|| params_width != 2)
|
||
FATAL_ERROR("Deserialize bulk node data error");
|
||
|
||
// read data
|
||
const u32 len = nodecount * (content_width + params_width);
|
||
Buffer<u8> databuf(len);
|
||
is.read(reinterpret_cast<char*>(*databuf), len);
|
||
|
||
// Deserialize content
|
||
if(content_width == 1)
|
||
{
|
||
for(u32 i=0; i<nodecount; i++)
|
||
nodes[i].param0 = readU8(&databuf[i]);
|
||
}
|
||
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;
|
||
if(content_width == 1)
|
||
{
|
||
for(u32 i=0; i<nodecount; i++) {
|
||
nodes[i].param2 = readU8(&databuf[start2 + i]);
|
||
if(nodes[i].param0 > 0x7F){
|
||
nodes[i].param0 <<= 4;
|
||
nodes[i].param0 |= (nodes[i].param2&0xF0)>>4;
|
||
nodes[i].param2 &= 0x0F;
|
||
}
|
||
}
|
||
}
|
||
else if(content_width == 2)
|
||
{
|
||
for(u32 i=0; i<nodecount; i++)
|
||
nodes[i].param2 = readU8(&databuf[start2 + i]);
|
||
}
|
||
}
|
||
|
||
/*
|
||
Legacy serialization
|
||
*/
|
||
void MapNode::deSerialize_pre22(const u8 *source, u8 version)
|
||
{
|
||
if(version <= 1)
|
||
{
|
||
param0 = source[0];
|
||
}
|
||
else if(version <= 9)
|
||
{
|
||
param0 = source[0];
|
||
param1 = source[1];
|
||
}
|
||
else
|
||
{
|
||
param0 = source[0];
|
||
param1 = source[1];
|
||
param2 = source[2];
|
||
if(param0 > 0x7f){
|
||
param0 <<= 4;
|
||
param0 |= (param2&0xf0)>>4;
|
||
param2 &= 0x0f;
|
||
}
|
||
}
|
||
|
||
// Convert special values from old version to new
|
||
if(version <= 19)
|
||
{
|
||
// In these versions, CONTENT_IGNORE and CONTENT_AIR
|
||
// are 255 and 254
|
||
// Version 19 is messed up with sometimes the old values and sometimes not
|
||
if(param0 == 255)
|
||
param0 = CONTENT_IGNORE;
|
||
else if(param0 == 254)
|
||
param0 = CONTENT_AIR;
|
||
}
|
||
|
||
// Translate to our known version
|
||
*this = mapnode_translate_to_internal(*this, version);
|
||
}
|