From a311c7c2e3e6726507481202b5aa697882a200fe Mon Sep 17 00:00:00 2001
From: Thomas Rudin <thomas@rudin.io>
Date: Mon, 7 Jan 2019 19:53:05 +0100
Subject: [PATCH] working block id mappings

---
 mapblockparser/mapblock.go   | 10 ++++++----
 mapblockparser/parse.go      | 34 ++++++++++++++++++++++++++++++++++
 mapblockparser/parse_test.go |  7 ++++++-
 3 files changed, 46 insertions(+), 5 deletions(-)

diff --git a/mapblockparser/mapblock.go b/mapblockparser/mapblock.go
index 57206e3..e3c2e1e 100644
--- a/mapblockparser/mapblock.go
+++ b/mapblockparser/mapblock.go
@@ -1,15 +1,17 @@
 package mapblockparser
 
 type MapBlock struct {
-	Version     byte
-	Underground bool
-	Mapdata     []byte
-	Metadata    Metadata
+	Version      byte
+	Underground  bool
+	Mapdata      []byte
+	Metadata     Metadata
+	BlockMapping map[int]string
 }
 
 func NewMapblock() MapBlock {
 	mb := MapBlock{}
 	mb.Metadata = NewMetadata()
+	mb.BlockMapping = make(map[int]string)
 	return mb
 }
 
diff --git a/mapblockparser/parse.go b/mapblockparser/parse.go
index 36f4fe6..be82172 100644
--- a/mapblockparser/parse.go
+++ b/mapblockparser/parse.go
@@ -53,5 +53,39 @@ func Parse(data []byte) (*MapBlock, error) {
 		return nil, err
 	}
 
+	offset += count
+
+	//static objects
+
+	offset++ //static objects version
+	staticObjectsCount := readU16(data, offset)
+	offset += 2
+	for i := 0; i < staticObjectsCount; i++ {
+		offset += 13
+		dataSize := readU16(data, offset)
+		offset += dataSize + 2
+	}
+
+	//timestamp
+	offset += 4
+
+	//mapping version
+	offset++
+
+	numMappings := readU16(data, offset)
+	offset += 2
+	for i := 0; i < numMappings; i++ {
+		nodeId := readU16(data, offset)
+		offset += 2
+
+		nameLen := readU16(data, offset)
+		offset += 2
+
+		blockName := string(data[offset : offset+nameLen])
+		offset += nameLen
+
+		mapblock.BlockMapping[nodeId] = blockName
+	}
+
 	return &mapblock, nil
 }
diff --git a/mapblockparser/parse_test.go b/mapblockparser/parse_test.go
index c002c56..1035dad 100644
--- a/mapblockparser/parse_test.go
+++ b/mapblockparser/parse_test.go
@@ -1,6 +1,7 @@
 package mapblockparser
 
 import (
+	"fmt"
 	"io/ioutil"
 	"strconv"
 	"testing"
@@ -72,11 +73,15 @@ func TestParse2(t *testing.T) {
 		t.Error(err)
 	}
 
-	_, err = Parse(data)
+	mapblock, err := Parse(data)
 
 	if err != nil {
 		t.Error(err)
 	}
+
+	for k, v := range mapblock.BlockMapping {
+		fmt.Println("Key", k, "Value", v)
+	}
 }
 
 func TestParse3(t *testing.T) {