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mcpe_viz.cc
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/*
Minecraft Pocket Edition (MCPE) World File Visualization & Reporting Tool
(c) Plethora777, 2015.9.26
GPL'ed code - see LICENSE
Requires Mojang's modified LevelDB library (see README.md for details)
Requires libnbt++ (see README.md for details)
To build it, use cmake
todozooz
* update web ui for new mobs / objects / entities
* block or item based on ID is no longer valid?! (search on 256 in nbt code)
maybe?
* move from xml to json?
* ui for mobs from xml instead of hard-coded?
todohere
* as of beta 1.2.x everything has gone quite mad:
- cubic chunks now have a palette instead of direct block-id's
- " " no longer have block light / sky light?! (therefore, can't do check spawnable anymore)
* as of 0.17 - grass color appears to no longer be a thing that is stored in the data files? remove related code here and in js?
* as of 0.16 entity id's have extra data in the high bytes -- collect these and see if we can figure out what they are -- see mcpe.nbt.cc
* update inventory images for 0.16 and 0.17
* web - tool to extract schematics for a 3d cube of space -- produce a layer-by-layer depiction of the blocks in the cube
-- see: http://minecraft.gamepedia.com/Schematic_file_format (NBT file format for schematics)
-- https://irath96.github.io/webNBT/ = web nbt viewer/editor
* /u/JustinUser -- reset world file outside given area (e.g. X blocks from spawn; given rectangles; etc)
* see data dump here; http://pastebin.com/tuMyCDyc -- any data we need? (updated: http://pastebin.com/be3dwGFA)
also: https://www.reddit.com/r/MCPE/comments/4nip1u/updated_the_blocksitems_list_for_0150/
* tool to show differences between worlds (v1 vs v2 etc)
-- layer by layer?
-- geojson?
* add a tool to help convert from overwold to nether coordinates
* check minor update to libnbt++ 5/2/2016
* should error on fail copy js lib files
* out56.log had a zombie pigman with 'nan' for position - filter this
* xml missing item 358 (probably filled map); probably other map related things + maps in item frames etc
* possible xml errors:
-- another1-dropbox - top of pyramid - quartz with unknown blockdata (6 and 10)
-- "upper slab, quartz" shows as "upper slab, nether brick" -- R.E. all variants in creative
-- "flower pot" w/ cactus shows as flower pot with poppy -- R.E. all variants in creative
-- block of quartz variants appear to be wrong -- R.E. in creative
* win gui --
-- icon
-- use taskbar progress bar - see: http://www.codeproject.com/Articles/42345/Windows-Goodies-in-C-Taskbar-Progress-and-Status
* could use png files to determine avg color of each block
* add icons for enchanted items?
* expand icons idea - use lil images of mobs etc in UI?
* test web app on mobile -- what can be optimized? smaller tiles?
* option to geojson items in chests etc (e.g. melon seeds; beetroot seeds)
* NO -- rethink coordinates used in js -- just negate the y-coord? could then adjust mouse pos output accordingly
* bug: js in tile mode, zoom to extent, does not show full extent (right side is chopped for 'another1')
-- also see reddit bartszelag world for extreme example (very wide, not so high world)
-- ol bug?
* check spawnable code - it might be missing spots?
* gui: allow users to easily add cmd-line params
-- a btn for mcpe_viz --help output (to see usage)
-- a text field for "Add Params"
* minimize geojson output?
-- remove spaces
-- simplify the properties? e.g. GType=Foo where Foo is the type of this record
* auto-tile (and useTilesFlag) should be per-dimension
-- js should use per-dimension tile vars instead of global
* optimize tiler (slow libpng is probably the limiting factor)
* finalize new elevation stuff
-- simplify it? combine the shaded relief and the alpha into one web app ui control + opacity slider -- or into one layer
todobig
* investigate parsing mcpc worlds
-- create an abstraction lib/base class of libminecraftworld (search on 'todolib')
---- move leveldb stuff to something like libminecraftworld.leveldb
---- create/adapt a lib for libminecraftworld.anvil (and mcregion)
---- read AND write
---- one way that ppl can convert mcpe to mcpc:
------ https://www.reddit.com/r/MCPE/comments/1y996x/tutorial_how_to_convert_worlds_from_pe_to_pc/
-- note: PocketMine uses mcregion, anvil or leveldb
---- see CrystalKingdom.zip for an example pocketmine world w/ mcregion files (level.dat gzipped?)
* allow user to provide APK (or file from it) and then use assets from the APK in web app?
-- e.g. - chest contents w/ icons for items
* add options or separate tool to do world modification
-- remove chunks (to allow them to regenerate w/ new features from an updated mcpe)
* add "interesting" blocks to geojson (this is something like the "layers" idea)
-- end portal frame
-- diamonds
-- ores: gold, iron, coal, redstone, lapis
-- trees: (by type -- use wood up/down?)
-- cobwebs
-- flowers?
-- crops: beetroot esp + netherwart + melon stem + pumpkin stem; lily pad?
-- ice + packed ice (how to coalesce?)
* change git layout
-- remove winX.zip files; make "release" for each update w/ the winX.zip files
-- put code in subdirs?
* android/ios app
* write script to check for updates to js/ files?
* check --out -- error if it is a directory
* parse potions etc in inventories etc
* do variants for items + entities?
* do away with image coord space for web app? coords are crazy -- confirmed that negative-Z is north
* do chunk grid here instead of in web ui? (same func as slime chunks)
* use boost for filesystem stuff?
* try with clang; possible to mingw w/ clang?
* see reddit test1 world -- has this msg (could be result of bad mcedit or similar):
-- WARNING: Did not find block variant for block(Wooden Double Slab) with blockdata=8 (0x8)
* join chests for geojson? (pairchest) - would require that we wait to toGeoJSON until we parse all chunks
-- put ALL chests in a map<x,y,z>; go through list of chests and put PairChest in matching sets and mark all as unprocessed; go thru list and do all, if PairChest mark both as done
* see if there is interesting info re colors for overview map: http://minecraft.gamepedia.com/Map_item_format
* option to name output files w/ world name
* use "solid" info from block info to do something? could it fix the light map?
* update block xml w/ transparency info - bool or int? or just solid/nonsolid?
-- use this transparency (or something else? e.g. spawnable flag?) to determine which block is the top block for purposes of the light map
-- go and look at wiki to see the type of info that is stored per block
* convert all printf-style stuff to streams
* find better hsl/hsv to/from rgb funcs; or really, better way to sort colors so that colortest is more useful
user suggestions
* tobomori: ability to hide only a block variant (e.g. Tall Grass)
-- difficult because of fastBlockHideList etc
todo
** cmdline options:
save set of slices
save a particular slice
draw text on slice files (e.g. Y)
separate logfiles for overworld + nether + unknown
options to reduce log file detail
** maps/instructions to get from point A (e.g. spawn) to biome type X (in blocks but also in landmark form: over 2 seas left at the birch forest etc); same for items and entities
todo win32/win64 build
* immediate crash if using -O2? (and now -O1 and -O)
* leveldb close() issue -- link fails on missing stream stuff
* leveldb -O2 build issue -- link fails on missing stream stuff
* leveldb fread_nolock issue -- link fails; forcing msvcrXXX.a crashes on windows
* log file: change end line to CRLF?
** osx build? cross compile tools look kinda horrible; see https://www.macports.org/
*/
// define this to use memcpy instead of manual copy of individual pixel values
// memcpy appears to be approx 1.3% faster for another1 --html-all
#define PIXEL_COPY_MEMCPY
#include <stdio.h>
#include <map>
#include <vector>
#include <algorithm>
#include <getopt.h>
#include <math.h>
#include <dirent.h>
#include <random>
#include "leveldb/db.h"
#include "leveldb/env.h"
#include "leveldb/cache.h"
#include "leveldb/decompress_allocator.h"
// hide innocuous warnings here
#pragma GCC diagnostic ignored "-Wshadow"
#include "leveldb/zlib_compressor.h"
#pragma GCC diagnostic pop
#include "leveldb/filter_policy.h"
#include "mcpe_viz.util.h"
#include "mcpe_viz.h"
#include "mcpe_viz.nbt.h"
#include "mcpe_viz.xml.h"
namespace mcpe_viz {
// todo - removed anonymous namespace here
// maximum build height -- as of MCPE 0.13 it is 127
const int32_t MAX_BLOCK_HEIGHT_127 = 127;
const int32_t MAX_BLOCK_HEIGHT = 255;
const int32_t MAX_CUBIC_Y = (MAX_BLOCK_HEIGHT + 1) / 16;
const int32_t NUM_BYTES_CHUNK_V3 = 10241;
std::string dirExec;
Logger logger;
Logger slogger;
// todobig -- would be nice for these to be in world class
double playerPositionImageX=0.0, playerPositionImageY=0.0;
int32_t playerPositionDimensionId=kDimIdOverworld;
// list of geojson items
std::vector<std::string> listGeoJSON;
// palettes
int32_t palRedBlackGreen[256];
// info lists (from XML)
BlockInfo blockInfoList[512];
ItemInfoList itemInfoList;
EntityInfoList entityInfoList;
BiomeInfoList biomeInfoList;
EnchantmentInfoList enchantmentInfoList;
IntIntMap mcpcToMcpeBlock;
IntIntMap mcpeToMcpcBlock;
IntIntMap mcpcToMcpeItem;
IntIntMap mcpeToMcpcItem;
StringIntMap imageFileMap;
int32_t globalIconImageId = 1;
PlayerIdToName playerIdToName;
leveldb::ReadOptions levelDbReadOptions;
enum OutputType : int32_t {
kDoOutputNone = -2,
kDoOutputAll = -1
};
enum HeightMode : int32_t {
kHeightModeTop = 0,
kHeightModeLevelDB = 1
};
// output image types
enum ImageModeType : int32_t {
kImageModeTerrain = 0,
kImageModeBiome = 1,
kImageModeGrass = 2,
kImageModeHeightCol = 3,
kImageModeHeightColGrayscale = 4,
kImageModeBlockLight = 5,
kImageModeSkyLight = 6,
kImageModeSlimeChunksMCPC = 7,
kImageModeHeightColAlpha = 8,
kImageModeShadedRelief = 9,
kImageModeSlimeChunksMCPE = 10
};
// suggestion from mcpe_sample_setup.cpp
class NullLogger : public leveldb::Logger {
public:
void Logv(const char*, va_list) override {
}
};
// all user options are stored here
class Control {
public:
std::string dirLeveldb;
std::string fnOutputBase;
std::string fnCfg;
std::string fnXml;
std::string fnLog;
std::string fnGeoJSON;
std::string fnHtml;
std::string fnJs;
// per-dimension filenames
std::string fnLayerTop[kDimIdCount];
std::string fnLayerBiome[kDimIdCount];
std::string fnLayerHeight[kDimIdCount];
std::string fnLayerHeightGrayscale[kDimIdCount];
std::string fnLayerHeightAlpha[kDimIdCount];
std::string fnLayerBlockLight[kDimIdCount];
std::string fnLayerSkyLight[kDimIdCount];
std::string fnLayerSlimeChunks[kDimIdCount];
std::string fnLayerGrass[kDimIdCount];
std::string fnLayerShadedRelief[kDimIdCount];
std::string fnLayerRaw[kDimIdCount][MAX_BLOCK_HEIGHT + 1];
bool doDetailParseFlag;
int32_t doMovie;
int32_t doSlices;
int32_t doGrid;
int32_t doHtml;
int32_t doTiles;
int32_t doImageBiome;
int32_t doImageGrass;
int32_t doImageHeightCol;
int32_t doImageHeightColGrayscale;
int32_t doImageHeightColAlpha;
int32_t doImageLightBlock;
int32_t doImageLightSky;
int32_t doImageSlimeChunks;
int32_t doImageShadedRelief;
bool autoTileFlag;
bool noForceGeoJSONFlag;
bool shortRunFlag;
bool colorTestFlag;
bool verboseFlag;
bool quietFlag;
int32_t movieX, movieY, movieW, movieH;
bool doFindImages;
std::string dirFindImagesIn;
std::string dirFindImagesOut;
int32_t heightMode;
int32_t tileWidth;
int32_t tileHeight;
bool fpLogNeedCloseFlag;
FILE *fpLog;
// this is the BloomFilterPolicy bits, set to 0 to disable filter
int32_t leveldbFilter = 10;
// this is the block_size used by leveldb
int32_t leveldbBlockSize = 4096;
Control() {
init();
}
~Control() {
if ( fpLogNeedCloseFlag ) {
if ( fpLog != nullptr ) {
fclose(fpLog);
}
}
}
void init() {
dirLeveldb = "";
fnXml = "";
fnOutputBase = "";
fnLog = "";
fnGeoJSON = "";
fnHtml = "";
fnJs = "";
doDetailParseFlag = false;
doMovie = kDoOutputNone;
doSlices = kDoOutputNone;
doGrid = kDoOutputNone;
doHtml = 0;
doTiles = 0;
doImageBiome = kDoOutputNone;
doImageGrass = kDoOutputNone;
doImageHeightCol = kDoOutputNone;
doImageHeightColGrayscale = kDoOutputNone;
doImageHeightColAlpha = kDoOutputNone;
doImageLightBlock = kDoOutputNone;
doImageLightSky = kDoOutputNone;
doImageSlimeChunks = kDoOutputNone;
doImageShadedRelief = kDoOutputNone;
noForceGeoJSONFlag = false;
autoTileFlag = false;
// todobig - reasonable default? strike a balance between speed/# of files
tileWidth = 1024;
tileHeight = 1024;
doFindImages = false;
dirFindImagesIn = "";
dirFindImagesOut = "";
shortRunFlag = false;
colorTestFlag = false;
verboseFlag = false;
quietFlag = false;
movieX = movieY = movieW = movieH = 0;
fpLogNeedCloseFlag = false;
fpLog = stdout;
leveldbFilter = 10;
leveldbBlockSize = 4096;
// todo - cmdline option for this?
heightMode = kHeightModeTop;
for (int32_t did=0; did < kDimIdCount; did++) {
fnLayerTop[did] = "";
fnLayerBiome[did] = "";
fnLayerHeight[did] = "";
fnLayerHeightGrayscale[did] = "";
fnLayerHeightAlpha[did] = "";
fnLayerBlockLight[did] = "";
fnLayerSkyLight[did] = "";
fnLayerSlimeChunks[did] = "";
fnLayerShadedRelief[did] = "";
fnLayerGrass[did] = "";
for ( int32_t i=0; i <= MAX_BLOCK_HEIGHT; i++ ) {
fnLayerRaw[did][i] = "";
}
}
}
void setupOutput() {
if ( fnLog.compare("-") == 0 ) {
fpLog = stdout;
fpLogNeedCloseFlag = false;
}
else {
if ( fnLog.size() == 0 ) {
fnLog = fnOutputBase + ".log";
}
fpLog = fopen(fnLog.c_str(), "w");
if ( fpLog ) {
fpLogNeedCloseFlag = true;
} else {
fprintf(stderr,"ERROR: Failed to create output log file (%s error=%s (%d)). Reverting to stdout...\n", fnLog.c_str(), strerror(errno), errno);
fpLog = stdout;
fpLogNeedCloseFlag = false;
}
}
// setup logger
logger.setStdout(fpLog);
logger.setStderr(stderr);
if ( doHtml ) {
fnGeoJSON = fnOutputBase + ".geojson";
listGeoJSON.clear();
fnHtml = fnOutputBase + ".html";
fnJs = fnOutputBase + ".js";
}
}
};
Control control;
void makePalettes() {
// create red-green ramp; red to black and then black to green
makeHslRamp(palRedBlackGreen, 0, 61, 0.0,0.0, 0.9,0.9, 0.8,0.1);
makeHslRamp(palRedBlackGreen, 63, MAX_BLOCK_HEIGHT, 0.4,0.4, 0.9,0.9, 0.1,0.8);
// force 62 (sea level) to gray
palRedBlackGreen[62]=0x303030;
// fill 128..255 with purple (we should never see this color)
for (int32_t i=(MAX_BLOCK_HEIGHT + 1); i < 256; i++) {
palRedBlackGreen[i] = kColorDefault;
}
// convert palette
for (int32_t i=0; i < 256; i++) {
palRedBlackGreen[i] = htobe32(palRedBlackGreen[i]);
}
}
// todolib - these funcs should be in a class?
// calculate an offset into mcpe chunk data for block data
inline int32_t _calcOffsetBlock_LevelDB_v2(int32_t x, int32_t z, int32_t y) {
return (((x*16) + z)*(MAX_BLOCK_HEIGHT_127+1)) + y;
}
// calculate an offset into mcpe chunk data for column data
inline int32_t _calcOffsetColumn_LevelDB_v2(int32_t x, int32_t z) {
// NOTE! this is the OPPOSITE of block data (oy)
return (z*16) + x;
}
inline uint8_t getBlockId_LevelDB_v2(const char* p, int32_t x, int32_t z, int32_t y) {
return (p[_calcOffsetBlock_LevelDB_v2(x,z,y)] & 0xff);
}
uint8_t getBlockData_LevelDB_v2(const char* p, int32_t x, int32_t z, int32_t y) {
int32_t off = _calcOffsetBlock_LevelDB_v2(x,z,y);
int32_t off2 = off / 2;
int32_t mod2 = off % 2;
int32_t v = p[32768 + off2];
if ( mod2 == 0 ) {
return v & 0x0f;
} else {
return (v & 0xf0) >> 4;
}
}
// a block opacity value? (e.g. glass is 0xf, water is semi (0xc) and an opaque block is 0x0)
uint8_t getBlockSkyLight_LevelDB_v2(const char* p, int32_t x, int32_t z, int32_t y) {
int32_t off = _calcOffsetBlock_LevelDB_v2(x,z,y);
int32_t off2 = off / 2;
int32_t mod2 = off % 2;
int32_t v = p[32768 + 16384 + off2];
if ( mod2 == 0 ) {
return v & 0x0f;
} else {
return (v & 0xf0) >> 4;
}
}
// block light is light value from torches et al -- super cool looking as an image, but it looks like block light is probably stored in air blocks which are above top block
uint8_t getBlockBlockLight_LevelDB_v2(const char* p, int32_t x, int32_t z, int32_t y) {
int32_t off = _calcOffsetBlock_LevelDB_v2(x,z,y);
int32_t off2 = off / 2;
int32_t mod2 = off % 2;
int32_t v = p[32768 + 16384 + 16384 + off2];
if ( mod2 == 0 ) {
return v & 0x0f;
} else {
return (v & 0xf0) >> 4;
}
}
// height of top *solid* block? (e.g. a glass block will NOT be the top block here)
uint8_t getColData_Height_LevelDB_v2(const char *buf, int32_t x, int32_t z) {
int32_t off = _calcOffsetColumn_LevelDB_v2(x,z);
int8_t v = buf[32768 + 16384 + 16384 + 16384 + off];
return v;
}
// this is 4-bytes: lsb is biome, the high 3-bytes are RGB grass color
uint32_t getColData_GrassAndBiome_LevelDB_v2(const char *buf, int32_t x, int32_t z) {
int32_t off = _calcOffsetColumn_LevelDB_v2(x,z) * 4;
int32_t v;
memcpy(&v,&buf[32768 + 16384 + 16384 + 16384 + 256 + off],4);
return v;
}
// calculate an offset into mcpe chunk data for block data
inline int32_t _calcOffsetBlock_LevelDB_v3(int32_t x, int32_t z, int32_t y) {
return (((x*16) + z) * 16) + y;
}
inline uint8_t getBlockId_LevelDB_v3(const char* p, int32_t x, int32_t z, int32_t y) {
return (p[_calcOffsetBlock_LevelDB_v3(x,z,y)+1] & 0xff);
}
uint8_t getBlockData_LevelDB_v3(const char* p, size_t plen, int32_t x, int32_t z, int32_t y) {
int32_t off = _calcOffsetBlock_LevelDB_v3(x,z,y);
int32_t off2 = off / 2;
int32_t mod2 = off % 2;
// todonow - temp test to find bug
size_t tmp_offset = (16*16*16) + 1 + off2;
if ( tmp_offset >= plen ) {
if ( control.verboseFlag ) {
slogger.msg(kLogError,"getBlockData_LevelDB_v3 get data out of bounds! (%d >= %d) (%d %d %d)\n"
, (int32_t)tmp_offset, (int32_t)plen, x,z,y);
}
return 0;
}
int32_t v = p[tmp_offset];
//int32_t v = p[(16*16*16) + 1 + off2];
if ( mod2 == 0 ) {
return v & 0x0f;
} else {
return (v & 0xf0) >> 4;
}
}
// todozooz - this is getting crazy
uint8_t getBlockData_LevelDB_v3__fake_v7(const int16_t* p, size_t plen, int32_t x, int32_t z, int32_t y) {
int32_t off = _calcOffsetBlock_LevelDB_v3(x,z,y);
int32_t off2 = off / 2;
int32_t mod2 = off % 2;
// todonow - temp test to find bug
size_t tmp_offset = (16*16*16) + 1 + off2;
if ( tmp_offset >= plen ) {
if ( control.verboseFlag ) {
slogger.msg(kLogError,"getBlockData_LevelDB_v3 get data out of bounds! (%d >= %d) (%d %d %d)\n"
, (int32_t)tmp_offset, (int32_t)plen, x,z,y);
}
return 0;
}
int32_t v = p[tmp_offset];
//int32_t v = p[(16*16*16) + 1 + off2];
if ( mod2 == 0 ) {
return v & 0x0f;
} else {
return (v & 0xf0) >> 4;
}
}
// a block opacity value? (e.g. glass is 0xf, water is semi (0xc) and an opaque block is 0x0)
uint8_t getBlockSkyLight_LevelDB_v3(const char* p, size_t plen, int32_t x, int32_t z, int32_t y) {
int32_t off = _calcOffsetBlock_LevelDB_v3(x,z,y);
int32_t off2 = off / 2;
int32_t mod2 = off % 2;
// todonow - temp test to find bug
size_t tmp_offset = (16*16*16) + 1 + (16*16*8) + off2;
if ( tmp_offset >= plen ) {
if ( control.verboseFlag ) {
slogger.msg(kLogError,"getBlockSkyLight_LevelDB_v3 get data out of bounds! (%d >= %d) (%d %d %d)\n"
, (int32_t)tmp_offset, (int32_t)plen, x,z,y);
}
return 0;
}
int32_t v = p[tmp_offset];
// int32_t v = p[(16*16*16) + 1 + (16*16*8) + off2];
if ( mod2 == 0 ) {
return v & 0x0f;
} else {
return (v & 0xf0) >> 4;
}
}
// block light is light value from torches et al -- super cool looking as an image, but it looks like block light is probably stored in air blocks which are above top block
uint8_t getBlockBlockLight_LevelDB_v3(const char* p, size_t plen, int32_t x, int32_t z, int32_t y) {
int32_t off = _calcOffsetBlock_LevelDB_v3(x,z,y);
int32_t off2 = off / 2;
int32_t mod2 = off % 2;
// todonow - temp test to find bug
size_t tmp_offset = (16*16*16) + 1 + (16*16*8) + (16*16*8) + off2;
if ( tmp_offset >= plen ) {
if ( control.verboseFlag ) {
slogger.msg(kLogError,"getBlockBlockLight_LevelDB_v3 get data out of bounds! (%d >= %d) (%d %d %d)\n"
, (int32_t)tmp_offset, (int32_t)plen, x,z,y);
}
return 0;
}
int32_t v = p[tmp_offset];
//int32_t v = p[(16*16*16) + 1 + (16*16*8) + (16*16*8) + off2];
if ( mod2 == 0 ) {
return v & 0x0f;
} else {
return (v & 0xf0) >> 4;
}
}
// calculate an offset into mcpe chunk data for column data
inline int32_t _calcOffsetColumn_LevelDB_v3(int32_t x, int32_t z) {
// NOTE! this is the OPPOSITE of block data (oy)
return (z*16) + x;
}
// height appears to be stored as a 2-byte int
// height of top *solid* block? (e.g. a glass block will NOT be the top block here)
uint8_t getColData_Height_LevelDB_v3(const char *buf, int32_t x, int32_t z) {
int32_t off = _calcOffsetColumn_LevelDB_v3(x,z) * 2;
int8_t v = buf[off];
return v;
}
// this is 3-bytes: lsb is biome?, the high 2-bytes are RGB grass color?
uint32_t getColData_GrassAndBiome_LevelDB_v3(const char *buf, int32_t buflen, int32_t x, int32_t z) {
// format appears to be:
// 16x16 of 2-byte ints for HEIGHT OF TOP BLOCK
// 16x16 of 4-byte ints for BIOME and GRASS COLOR
// todo -- there was a bug in early 0.17 that really messed this data up
// tood -- grass colors are pretty weird (some are 01 01 01)
// as of, v0.17.01 we'll just roll with it and adjust as necessary
//int32_t off = _calcOffsetColumn_LevelDB_v3(x,z) * 4;
int32_t off = _calcOffsetColumn_LevelDB_v3(x,z);
int32_t v = 0;
// HACK! to work around MCPE bug (biome data is not complete in this record as of v0.17.01
if ( (512+off+1) <= buflen ) {
// memcpy(&v,&buf[512 + off],1);
v = buf[512 + off];
} else {
// nothing - this is deals with the bug in early 0.17
}
return v;
}
// todobig - this (XXX_v3_fullchunk) needs to be cleaner/simpler
// calculate an offset into mcpe chunk data for block data
inline int32_t _calcOffsetBlock_LevelDB_v3_fullchunk(int32_t x, int32_t z, int32_t y) {
return (((x*16) + z) * MAX_BLOCK_HEIGHT) + y;
}
inline uint8_t getData_LevelDB_v3_fullchunk(const char* p, int32_t x, int32_t z, int32_t y) {
return p[_calcOffsetBlock_LevelDB_v3_fullchunk(x,z,y)];
}
inline uint8_t getBlockId_LevelDB_v7(const char* p, int blocksPerWord, int bitsPerBlock, int32_t x, int32_t z, int32_t y) {
//int bitstart = ( (((x*16) + z) * 16) + y ) * bitsPerBlock;
// int bitstart = ( (((y*16) + x) * 16) + z ) * bitsPerBlock;
int blockPos = (((x*16) + z) * 16) + y;
// we find which 4-byte word we want
int wordStart = blockPos / blocksPerWord;
// we find the bit offset within that 4-byte word
int bitOffset = (blockPos % blocksPerWord) * bitsPerBlock;
int bitStart = wordStart * 4 * 8 + bitOffset;
return getBitsFromBytes(p, bitStart, bitsPerBlock);
}
// todomajor -- see tomcc gist re multiple storages in ONE cubick chunk in version == 8
inline int32_t setupBlockVars_v7(const char* cdata, int32_t& blocksPerWord, int32_t& bitsPerBlock, bool& paddingFlag, int32_t& offsetBlockInfoList, int32_t& extraOffset) {
int32_t v = -1;
if ( cdata[0] == 0x01 ) {
v = cdata[1];
extraOffset = 0;
} else {
// this is version 8+, cdata[1] contains the number of storage groups in this cubic chunk (can be more than 1)
v = cdata[2];
extraOffset = 1;
}
switch (v) {
case 0x02:
blocksPerWord = 32;
bitsPerBlock = 1;
offsetBlockInfoList = 512;
break;
case 0x04:
blocksPerWord = 16;
bitsPerBlock = 2;
offsetBlockInfoList = 1024;
break;
case 0x06:
blocksPerWord = 10;
bitsPerBlock = 3;
paddingFlag = true;
offsetBlockInfoList = 1640;
break;
case 0x08:
blocksPerWord = 8;
bitsPerBlock = 4;
offsetBlockInfoList = 2048;
break;
case 0x0a:
blocksPerWord = 6;
bitsPerBlock = 5;
paddingFlag = true;
offsetBlockInfoList = 2732;
break;
case 0x0c:
blocksPerWord = 5;
bitsPerBlock = 6;
paddingFlag = true;
offsetBlockInfoList = 3280;
break;
case 0x10:
blocksPerWord = 4;
bitsPerBlock = 8;
offsetBlockInfoList = (4096 / blocksPerWord) * 4;
break;
case 0x20:
blocksPerWord = 2;
bitsPerBlock = 16;
offsetBlockInfoList = (4096 / blocksPerWord) * 4;
break;
default:
slogger.msg(kLogError, "Unknown chunk cdata[1] value = %d\n",(int)v);
logger.msg(kLogError, "Unknown chunk cdata[1] value = %d\n",(int)v);
return -1;
}
// logger.msg(kLogInfo, "setupBlockVars_v7 v=%d bpw=%d bpb=%d pf=%d ob=%d\n", v, blocksPerWord, bitsPerBlock, (int)paddingFlag, offsetBlockInfoList);
return 0;
}
int32_t convertChunkV7toV3(const char* cdata, size_t cdata_size, int16_t* emuchunk) {
// we have a v7 chunk and we want to unpack it into a v3-like chunk
// determine location of chunk palette
// some details here: https://gist.github.com/Tomcc/a96af509e275b1af483b25c543cfbf37
int32_t blocksPerWord = -1;
int32_t bitsPerBlock = -1;
bool paddingFlag = false;
int32_t offsetBlockInfoList = -1;
int32_t extraOffset = -1;
memset(emuchunk,0,NUM_BYTES_CHUNK_V3*sizeof(int16_t));
if ( setupBlockVars_v7(cdata, blocksPerWord, bitsPerBlock, paddingFlag, offsetBlockInfoList, extraOffset) != 0 ) {
return -1;
}
// read chunk palette and associate old-school block id's
MyNbtTagList tagList;
int xoff = offsetBlockInfoList + 6 + extraOffset;
parseNbtQuiet(&cdata[xoff], cdata_size-xoff, cdata[offsetBlockInfoList + 3], tagList);
std::vector<int32_t> chunkBlockPalette_BlockId(tagList.size());
std::vector<int32_t> chunkBlockPalette_BlockData(tagList.size());
for ( size_t i=0; i < tagList.size(); i++ ) {
// check tagList
if ( tagList[i].second->get_type() == nbt::tag_type::Compound ) {
nbt::tag_compound tc = tagList[i].second->as<nbt::tag_compound>();
bool processedFlag = false;
if ( tc.has_key("name", nbt::tag_type::String) ) {
std::string bname = tc["name"].as<nbt::tag_string>().get();
if ( tc.has_key("val", nbt::tag_type::Short) ) {
int bdata = tc["val"].as<nbt::tag_short>().get();
int32_t blockId, blockData;
if ( getBlockByUname(bname, blockId, blockData) == 0 ) {
chunkBlockPalette_BlockId[i] = blockId;
// todonow - correct?
chunkBlockPalette_BlockData[i] = bdata;
} else {
logger.msg(kLogWarning,"Did not find block uname '%s' in XML file\n", bname.c_str());
// todonow - reasonable?
chunkBlockPalette_BlockId[i] = 0;
chunkBlockPalette_BlockData[i] = 0;
}
processedFlag = true;
}
}
if ( ! processedFlag ) {
slogger.msg(kLogError,"(Safe) Did not find 'name' and/or 'val' tags in a chunk palette! (i=%d) (len=%d)\n"
, (int)i, (int)tagList.size() );
//todozooz - dump tc to screen log
}
} else {
logger.msg(kLogWarning,"Unexpected NBT format in _do_chunk_v7\n");
}
}
//todozooz -- new 16-bit block-id's (instead of 8-bit) are a BIG issue - this needs attention here
// iterate over chunk space
uint8_t paletteBlockId, blockData;
int32_t blockId;
for (int32_t cy=0; cy < 16; cy++) {
for ( int32_t cx=0; cx < 16; cx++) {
for ( int32_t cz=0; cz < 16; cz++ ) {
paletteBlockId = getBlockId_LevelDB_v7(&cdata[2 + extraOffset], blocksPerWord, bitsPerBlock, cx,cz,cy);
// look up blockId
//todonow error checking
if ( paletteBlockId < chunkBlockPalette_BlockId.size() ) {
blockId = chunkBlockPalette_BlockId[paletteBlockId];
blockData = chunkBlockPalette_BlockData[paletteBlockId];
} else {
blockId = 0;
blockData = 0;
logger.msg(kLogWarning,"Found chunk palette id out of range %d (size=%d)\n", paletteBlockId, (int)chunkBlockPalette_BlockId.size());
}
int32_t bdoff = _calcOffsetBlock_LevelDB_v3(cx,cz,cy);
emuchunk[bdoff+1] = blockId;
// put block data
int32_t bdoff2 = bdoff / 2;
int32_t bdmod2 = bdoff % 2;
// todonow - temp test to find bug
size_t tmp_offset = (16*16*16) + 1 + bdoff2;
if ( bdmod2 == 0 ) {
emuchunk[tmp_offset] |= (blockData & 0x0f);
} else {
emuchunk[tmp_offset] |= (blockData & 0x0f) << 4;
}
}
}
}
return 0;
}
// todolib - move to util?
int32_t myParseInt32(const char* p, int32_t startByte) {
int32_t ret;
memcpy(&ret, &p[startByte], 4);
return ret;
}
int8_t myParseInt8(const char* p, int32_t startByte) {
return (p[startByte] & 0xff);
}
bool has_key(const ItemInfoList &m, int32_t k) {
return m.find(k) != m.end();
}
bool has_key(const EntityInfoList &m, int32_t k) {
return m.find(k) != m.end();
}
bool has_key(const BiomeInfoList &m, int32_t k) {
return m.find(k) != m.end();
}
bool has_key(const EnchantmentInfoList &m, int32_t k) {
return m.find(k) != m.end();
}
bool has_key(const IntIntMap &m, int32_t k) {
return m.find(k) != m.end();
}
bool has_key(const StringIntMap &m, const std::string& k) {
return m.find(k) != m.end();
}
int32_t findEntityByUname(const EntityInfoList &m, std::string& un) {
// convert search key to lower case
std::string uname = un;
std::transform(uname.begin(), uname.end(), uname.begin(), ::tolower);
for (const auto& it : m) {
for ( const auto& u : it.second->unameList ) {
if ( u == uname ) {
return it.first;
}
}
}
return -1;
}
int32_t findIdByItemName(std::string& un) {
std::string uname = un;
std::transform(uname.begin(), uname.end(), uname.begin(), ::tolower);
for (const auto& it : itemInfoList) {
for ( const auto& u : it.second->unameList ) {
if ( u == uname ) {
return it.first;
}
}
}
return -1;
}
int32_t findIdByBlockName(std::string& un) {
std::string uname = un;
std::transform(uname.begin(), uname.end(), uname.begin(), ::tolower);
for (const auto& it : blockInfoList ) {
for ( const auto& u : it.unameList ) {
if ( u == uname ) {
return it.id;
}
}
}
return -1;
}