From 50db190a25e76e24ee25ff1e83ccd71d7d358243 Mon Sep 17 00:00:00 2001
From: lzwdgc <lzwdgc@gmail.com>
Date: Thu, 23 Jun 2016 00:21:01 +0300
Subject: [PATCH] Initial save loader for AIM2.

---
 src/common/buffer.cpp               |   4 +-
 src/common/buffer.h                 |  47 +-
 src/common/dxt5.h                   |   6 +-
 src/common/mat.h                    |   5 +-
 src/common/objects.cpp              |   5 +-
 src/common/objects.h                |  23 +-
 src/common/types.cpp                |   8 +-
 src/common/types.h                  |  56 +-
 src/db_extractor/db.cpp             |  10 +-
 src/db_extractor/db.h               |  10 +-
 src/mmm_extractor/mmm_extractor.cpp |   2 +-
 src/mmo_extractor/mmo_extractor.cpp |   2 +-
 src/mmo_extractor/other.h           |  92 +---
 src/mmp_extractor/mmp.cpp           |  12 +-
 src/mmp_extractor/mmp.h             |  14 +-
 src/mod_converter/model.cpp         |  14 +-
 src/mod_converter/model.h           |  14 +-
 src/mpj_loader/mpj.cpp              |  28 +-
 src/mpj_loader/mpj.h                |  36 +-
 src/save_loader/save.h              | 799 ++++++++++++++++++++++++++++
 src/save_loader/save_loader.bat     |   1 +
 src/save_loader/save_loader.cpp     |  12 +
 src/save_loader/save_loader.py      |  23 +
 src/script2txt/script.h             |   2 +-
 24 files changed, 1030 insertions(+), 195 deletions(-)
 create mode 100644 src/save_loader/save.h
 create mode 100644 src/save_loader/save_loader.bat
 create mode 100644 src/save_loader/save_loader.py

diff --git a/src/common/buffer.cpp b/src/common/buffer.cpp
index 9361872..c2a6e19 100644
--- a/src/common/buffer.cpp
+++ b/src/common/buffer.cpp
@@ -81,7 +81,7 @@ buffer::buffer(const std::vector<uint8_t> &buf, uint32_t data_offset)
     end_ = index_ + size_;
 }
 
-buffer::buffer(buffer &rhs, uint32_t size)
+buffer::buffer(const buffer &rhs, uint32_t size)
     : buf_(rhs.buf_)
 {
     index_ = rhs.index_;
@@ -92,7 +92,7 @@ buffer::buffer(buffer &rhs, uint32_t size)
     rhs.skip(size);
 }
 
-buffer::buffer(buffer &rhs, uint32_t size, uint32_t offset)
+buffer::buffer(const buffer &rhs, uint32_t size, uint32_t offset)
     : buf_(rhs.buf_)
 {
     index_ = offset;
diff --git a/src/common/buffer.h b/src/common/buffer.h
index d42554b..0e9f601 100644
--- a/src/common/buffer.h
+++ b/src/common/buffer.h
@@ -32,6 +32,8 @@
 #define READ_WSTRING(b, var) var = b.read_wstring()
 #define READ_WSTRING_N(b, var, sz) var = b.read_wstring(sz)
 
+#define READ_PASCAL_STRING(b, var) var = b.read_pascal_string()
+
 #define WRITE(b, var) b.write(&var)
 
 std::string version();
@@ -44,18 +46,13 @@ public:
     buffer();
     buffer(size_t size);
     buffer(const std::vector<uint8_t> &buf, uint32_t data_offset = 0);
-    buffer(buffer &rhs, uint32_t size);
-    buffer(buffer &rhs, uint32_t size, uint32_t offset);
+    buffer(const buffer &rhs, uint32_t size);
+    buffer(const buffer &rhs, uint32_t size, uint32_t offset);
 
     template <typename T>
-    uint32_t read(T *dst) const
+    uint32_t read(T *dst, uint32_t size = 1) const
     {
-        return _read(dst, sizeof(T), 0);
-    }
-    template <typename T>
-    uint32_t read(T *dst, uint32_t size) const
-    {
-        return _read(dst, size * sizeof(T), 0);
+        return _read((void *)dst, size * sizeof(T), 0);
     }
     std::string read_string(uint32_t blocksize = 0x20) const;
     std::wstring read_wstring(uint32_t blocksize = 0x20) const;
@@ -81,7 +78,37 @@ public:
         return _write(src, sizeof(T));
     }
 
-    void seek(uint32_t size) const;
+    template <class T, class SizeType = uint32_t>
+    void read_vector(std::vector<T> &v, int n) const
+    {
+        v.clear();
+        v.reserve(n);
+        for (int i = 0; i < n; i++)
+        {
+            T t;
+            t.load(*this);
+            v.push_back(t);
+        }
+    }
+
+    template <class T, class SizeType = uint32_t>
+    void read_vector(std::vector<T> &v) const
+    {
+        SizeType n = 0;
+        read(&n);
+        read_vector<T, SizeType>(v, n);
+    }
+
+    std::string read_pascal_string() const
+    {
+        uint32_t n = 0;
+        read(&n);
+        std::string s(n, 0);
+        read(s.data(), n);
+        return s;
+    }
+
+    void seek(uint32_t size) const; // setpos
     void skip(int n) const;
     bool eof() const;
     bool check(int index) const;
diff --git a/src/common/dxt5.h b/src/common/dxt5.h
index 12cd581..a8d307b 100644
--- a/src/common/dxt5.h
+++ b/src/common/dxt5.h
@@ -47,7 +47,7 @@ struct dxt5_block
     };
 
     dxt5_block() {}
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         READ(b, alpha_part);
         READ(b, color_part);
@@ -114,13 +114,13 @@ struct dxt5
     uint32_t height;
     std::vector<dxt5_block> blocks;
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         READ(b, width);
         READ(b, height);
         load_blocks(b);
     }
-    void load_blocks(buffer &b)
+    void load_blocks(const buffer &b)
     {
         blocks.resize(width * height / 16);
         for (auto &d : blocks)
diff --git a/src/common/mat.h b/src/common/mat.h
index 4cca0d8..b6e9aab 100644
--- a/src/common/mat.h
+++ b/src/common/mat.h
@@ -57,6 +57,7 @@ public:
     int getWidth() const { return width; }
     int getHeight() const { return height; }
     int size() const { return width * height; }
+    int getBytesLength() const { return size() * sizeof(T); }
     int getPos(const T *const elem) const { return elem - &data[0]; }
     const std::vector<T> &getData() const { return data; }
     std::vector<T> &getData() { return data; }
@@ -101,7 +102,7 @@ void write_mat_tga(const std::string &filename, const mat<T> &m)
     FILE *f = fopen(filename.c_str(), "wb");
     if (f == nullptr)
         return;
-    
+
     tga t;
     t.width = m.getWidth();
     t.height = m.getHeight();
@@ -109,7 +110,7 @@ void write_mat_tga(const std::string &filename, const mat<T> &m)
     // header
     fwrite(&t, sizeof(tga), 1, f);
     fwrite(t.label(), t.idlength, 1, f);
-    
+
     // data
     fwrite(&m(0, 0), m.size() * sizeof(T), 1, f);
     fclose(f);
diff --git a/src/common/objects.cpp b/src/common/objects.cpp
index c6d2df7..48b6022 100644
--- a/src/common/objects.cpp
+++ b/src/common/objects.cpp
@@ -18,7 +18,7 @@
 
 #include "objects.h"
 
-Segment *Segment::create_segment(buffer &b)
+Segment *Segment::create_segment(const buffer &b)
 {
     ObjectType segment_type;
     READ(b, segment_type);
@@ -81,8 +81,9 @@ Segment *Segment::create_segment(buffer &b)
     return segment;
 }
 
-void Objects::load(buffer &b)
+void Objects::load(const buffer &b)
 {
+    uint32_t n_segments = 0;
     READ(b, n_segments);
 
     for (int s = 0; s < n_segments; s++)
diff --git a/src/common/objects.h b/src/common/objects.h
index fa20a2c..e4e6910 100644
--- a/src/common/objects.h
+++ b/src/common/objects.h
@@ -69,8 +69,8 @@ struct Segment
     uint32_t n_objects = 0;
 
     virtual ~Segment(){}
-    static Segment *create_segment(buffer &b);
-    virtual void load(buffer &b) = 0;
+    static Segment *create_segment(const buffer &b);
+    virtual void load(const buffer &b) = 0;
 };
 
 template <class T>
@@ -78,7 +78,7 @@ struct SegmentObjects : public Segment
 {
     std::vector<T*> objects;
 
-    virtual void load(buffer &b)
+    virtual void load(const buffer &b)
     {
         for (int i = 0; i < n_objects; i++)
         {
@@ -91,10 +91,10 @@ struct SegmentObjects : public Segment
 
 struct Common
 {
-    Vector4 m_rotate_z[3];
-    Vector4 position;
+    vector4 m_rotate_z[3];
+    vector4 position;
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         READ(b, m_rotate_z);
         READ(b, position);
@@ -106,7 +106,7 @@ struct MapObject : public Common
     std::string name1;
     std::string name2;
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         Common::load(b);
 
@@ -120,7 +120,7 @@ struct MapObjectWithArray : public MapObject
     uint32_t len = 0;
     std::vector<uint32_t> unk0;
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         MapObject::load(b);
 
@@ -136,7 +136,7 @@ struct Sound : public Common
     uint32_t unk1[11];
     char name1[0x14];
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         Common::load(b);
 
@@ -162,15 +162,14 @@ KNOWN_OBJECT(Tower);
 KNOWN_OBJECT(SoundZone);
 
 #define UNKNOWN_OBJECT(name) \
-    struct name : public MapObject { void load(buffer &b){ int pos = b.index(); assert(false); } }
+    struct name : public MapObject { void load(const buffer &b){ int pos = b.index(); assert(false); } }
 
 UNKNOWN_OBJECT(unk0);
 UNKNOWN_OBJECT(unk1);
 
 struct Objects
 {
-    uint32_t n_segments = 0;
     std::vector<Segment *> segments;
 
-    void load(buffer &b);
+    void load(const buffer &b);
 };
diff --git a/src/common/types.cpp b/src/common/types.cpp
index a3fc261..58bcf90 100644
--- a/src/common/types.cpp
+++ b/src/common/types.cpp
@@ -20,7 +20,7 @@
 
 GameType gameType = GameType::Aim2;
 
-void weather::load(buffer &b)
+void weather::load(const buffer &b)
 {
     READ_STRING(b, name);
     READ_STRING(b, unk0);
@@ -52,7 +52,7 @@ void weather::load(buffer &b)
     READ(b, unk8);
 }
 
-void weather_group::load(buffer &b)
+void weather_group::load(const buffer &b)
 {
     READ(b, n_segs);
     segments.resize(n_segs);
@@ -61,7 +61,7 @@ void weather_group::load(buffer &b)
         s.load(b);
 }
 
-void water::load(buffer &b)
+void water::load(const buffer &b)
 {
     READ(b, unk0);
     READ_STRING(b, name1);
@@ -73,7 +73,7 @@ void water::load(buffer &b)
     READ(b, unk5);
 }
 
-void water_group::load(buffer &b)
+void water_group::load(const buffer &b)
 {
     while (!b.eof())
     {
diff --git a/src/common/types.h b/src/common/types.h
index c307ca4..3dce160 100644
--- a/src/common/types.h
+++ b/src/common/types.h
@@ -37,7 +37,7 @@ struct vector3
     float z = 0;
 };
 
-struct Vector4
+struct vector4
 {
     float x = 0;
     float y = 0;
@@ -100,7 +100,7 @@ struct weather
     uint32_t slider_1;
     float unk8[11];
 
-    void load(buffer &b);
+    void load(const buffer &b);
 };
 
 struct weather_group
@@ -109,7 +109,7 @@ struct weather_group
     char name[0xA0];
     std::vector<weather> segments;
 
-    void load(buffer &b);
+    void load(const buffer &b);
 };
 
 struct water
@@ -123,14 +123,14 @@ struct water
     std::string name2;
     uint32_t unk5[16];
 
-    void load(buffer &b);
+    void load(const buffer &b);
 };
 
 struct water_group
 {
     std::vector<water> segments;
 
-    void load(buffer &b);
+    void load(const buffer &b);
 };
 
 struct Good
@@ -143,7 +143,7 @@ struct Good
     float unk2_1[2];
     uint32_t unk2_2[2];
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         READ_STRING(b, name);
         if (gameType == GameType::Aim1)
@@ -168,7 +168,7 @@ struct BuildingGoods
 
     std::vector<Good> goods;
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         READ_STRING(b, name);
         READ(b, n);
@@ -187,13 +187,10 @@ struct MapMusic
     std::string name1;
     std::string name2;
 
-    uint32_t n1 = 0;
     std::vector<std::string> names1;
-
-    uint32_t n2 = 0;
     std::vector<std::string> names2;
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         READ_STRING(b, name1);
         READ_STRING(b, name2);
@@ -204,9 +201,11 @@ struct MapMusic
                 v.push_back(b.read_string());
         };
 
+        uint32_t n1 = 0;
         READ(b, n1);
         read_values(names1, n1);
 
+        uint32_t n2 = 0;
         READ(b, n2);
         read_values(names2, n2);
     }
@@ -217,7 +216,7 @@ struct OrganizationConfig
     uint32_t n_configs = 0;
     std::vector<std::string> configs;
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         READ(b, n_configs);
         configs.resize(n_configs, std::string(0x20, 0));
@@ -233,7 +232,7 @@ struct Organization
     char unk1[0xE0];
     OrganizationConfig configs[3];
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         READ(b, unk0);
         READ_STRING(b, name);
@@ -245,13 +244,13 @@ struct Organization
 
 struct Organizations
 {
-    uint32_t len = 0;
-    uint32_t n = 0;
     std::vector<Organization> organizations;
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
+        uint32_t len = 0;
         READ(b, len);
+        uint32_t n = 0;
         READ(b, n);
         for (int i = 0; i < n; i++)
         {
@@ -268,7 +267,7 @@ struct OrganizationBase
     std::string org_name;
     uint32_t unk0 = 0;
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         READ_STRING(b, base_name);
         READ_STRING(b, org_name);
@@ -278,11 +277,11 @@ struct OrganizationBase
 
 struct OrganizationBases
 {
-    uint32_t n = 0;
     std::vector<OrganizationBase> organizationBases;
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
+        uint32_t n = 0;
         READ(b, n);
         for (int i = 0; i < n; i++)
         {
@@ -292,3 +291,22 @@ struct OrganizationBases
         }
     }
 };
+
+struct ModificatorMask
+{
+    enum class ItemType : uint8_t
+    {
+        Glider = 1,
+        Weapon,
+        Reactor,
+        Engine,
+        EnergyShield
+    };
+
+    uint8_t fight : 4;
+    uint8_t trade : 4;
+    uint8_t courier : 4;
+    ItemType type : 4;
+
+    uint16_t : 16;
+};
diff --git a/src/db_extractor/db.cpp b/src/db_extractor/db.cpp
index b45fb61..e3c6da0 100644
--- a/src/db_extractor/db.cpp
+++ b/src/db_extractor/db.cpp
@@ -36,14 +36,14 @@ string getSqlType(FieldType type)
     return "";
 }
 
-void table::load(buffer &b)
+void table::load(const buffer &b)
 {
     READ(b, id);
     READ_STRING(b, name);
     READ(b, unk4);
 }
 
-void field::load(buffer &b)
+void field::load(const buffer &b)
 {
     READ(b, table_id);
     READ(b, id);
@@ -51,7 +51,7 @@ void field::load(buffer &b)
     READ(b, type);
 }
 
-void tab::load(buffer &b)
+void tab::load(const buffer &b)
 {
     READ(b, number_of_tables);
     READ(b, number_of_fields);
@@ -73,7 +73,7 @@ void tab::load(buffer &b)
     }
 }
 
-void value::load_index(buffer &b)
+void value::load_index(const buffer &b)
 {
     READ(b, table_id);
     READ_STRING(b, name);
@@ -122,7 +122,7 @@ void value::load_fields(const tab &tab, buffer &b)
     }
 }
 
-void db::load(buffer &b)
+void db::load(const buffer &b)
 {
     READ(b, number_of_values);
 
diff --git a/src/db_extractor/db.h b/src/db_extractor/db.h
index 4e6c32d..6d927cd 100644
--- a/src/db_extractor/db.h
+++ b/src/db_extractor/db.h
@@ -42,7 +42,7 @@ struct table
     std::string name;
     uint32_t unk4;
 
-    void load(buffer &b);
+    void load(const buffer &b);
 };
 
 struct field
@@ -52,7 +52,7 @@ struct field
     std::string name;
     FieldType type;
 
-    void load(buffer &b);
+    void load(const buffer &b);
 };
 
 struct tab
@@ -63,7 +63,7 @@ struct tab
     map<uint32_t, table> tables;
     map<uint32_t, field> fields;
 
-    void load(buffer &b);
+    void load(const buffer &b);
 };
 
 struct field_value
@@ -84,7 +84,7 @@ struct value
     uint32_t data_size;
     vector<field_value> fields;
 
-    void load_index(buffer &b);
+    void load_index(const buffer &b);
     void load_fields(const tab &tab, buffer &b);
 };
 
@@ -95,5 +95,5 @@ struct db
     tab t;
     vector<value> values;
 
-    void load(buffer &b);
+    void load(const buffer &b);
 };
\ No newline at end of file
diff --git a/src/mmm_extractor/mmm_extractor.cpp b/src/mmm_extractor/mmm_extractor.cpp
index fa51c86..87ec2d7 100644
--- a/src/mmm_extractor/mmm_extractor.cpp
+++ b/src/mmm_extractor/mmm_extractor.cpp
@@ -32,7 +32,7 @@ struct mmm
     uint32_t unk2;
     dxt5 data;
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         READ(b, unk1);
         READ(b, unk2);
diff --git a/src/mmo_extractor/mmo_extractor.cpp b/src/mmo_extractor/mmo_extractor.cpp
index 3bb9e41..07b2e4c 100644
--- a/src/mmo_extractor/mmo_extractor.cpp
+++ b/src/mmo_extractor/mmo_extractor.cpp
@@ -54,7 +54,7 @@ struct storage
     OrganizationBases orgsBases;
     Prices prices;
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         objects.load(b);
         mechGroups.load(b);
diff --git a/src/mmo_extractor/other.h b/src/mmo_extractor/other.h
index ec0788d..b00da4f 100644
--- a/src/mmo_extractor/other.h
+++ b/src/mmo_extractor/other.h
@@ -48,7 +48,7 @@ struct MechGroup
     std::vector<std::string> configs;
     char unk100;
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         READ_STRING(b, name);
         READ_STRING(b, org);
@@ -82,16 +82,17 @@ struct MechGroup
 
 struct MechGroups
 {
-    uint32_t length = 0;
-    uint32_t n = 0;
     char prefix[0x30];
+    std::vector<MechGroup> mechGroups;
 
-    std::vector<MechGroup> mgs;
-
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         if (gameType == GameType::Aim2)
+        {
+            uint32_t length = 0;
             READ(b, length);
+        }
+        uint32_t n = 0;
         READ(b, n);
         READ(b, prefix);
 
@@ -99,28 +100,28 @@ struct MechGroups
         {
             MechGroup mg;
             mg.load(b);
-            mgs.push_back(mg);
+            mechGroups.push_back(mg);
         }
     }
 };
 
 struct MapGoods
 {
-    uint32_t length = 0;
     uint32_t unk2 = 0;
     uint32_t unk3 = 0;
-    uint32_t n = 0;
 
     std::vector<BuildingGoods> bgs;
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
+        uint32_t length = 0;
         READ(b, length);
         READ(b, unk2);
         if (gameType != GameType::Aim2)
             READ(b, unk3);
-        READ(b, n);
 
+        uint32_t n = 0;
+        READ(b, n);
         for (int i = 0; i < n; i++)
         {
             BuildingGoods bg;
@@ -139,7 +140,7 @@ struct MapSound
     uint32_t unk2 = 0;
     float unk3[4];
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         READ_STRING(b, name);
         READ(b, unk1);
@@ -150,40 +151,14 @@ struct MapSound
 
 struct MapSounds
 {
-    uint32_t n = 0;
     std::vector<MapSound> sounds;
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
-        READ(b, n);
-        for (int i = 0; i < n; i++)
-        {
-            MapSound s;
-            s.load(b);
-            sounds.push_back(s);
-        }
+        b.read_vector(sounds);
     }
 };
 
-struct ModificatorMask
-{
-    enum class ItemType : uint8_t
-    {
-        Glider = 1,
-        Weapon,
-        Reactor,
-        Engine,
-        EnergyShield
-    };
-
-    uint8_t fight:4;
-    uint8_t trade:4;
-    uint8_t courier:4;
-    ItemType type:4;
-
-    uint16_t:16;
-};
-
 struct Price
 {
     enum class ItemType : uint32_t
@@ -201,7 +176,7 @@ struct Price
     float unk2 = 0.0f; // count ?
     float probability; // of appearence
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         READ_STRING(b, tov_name);
         READ(b, type);
@@ -217,17 +192,10 @@ struct BuildingPrice
     std::string name;
     std::vector<Price> prices;
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         READ_STRING(b, name);
-        uint32_t n_tov = 0;
-        READ(b, n_tov);
-        for (int i = 0; i < n_tov; i++)
-        {
-            Price s;
-            s.load(b);
-            prices.push_back(s);
-        }
+        b.read_vector(prices);
     }
 };
 
@@ -236,35 +204,21 @@ struct BuildingPrices
     std::vector<Price> prices;
     std::vector<BuildingPrice> buildingPrices;
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
-        uint32_t n_tov = 0;
-        READ(b, n_tov);
-        for (int i = 0; i < n_tov; i++)
-        {
-            Price s;
-            s.load(b);
-            prices.push_back(s);
-        }
-        uint32_t n_bases = 0;
-        READ(b, n_bases);
-        for (int i = 0; i < n_bases; i++)
-        {
-            BuildingPrice s;
-            s.load(b);
-            buildingPrices.push_back(s);
-        }
+        b.read_vector(prices);
+        b.read_vector(buildingPrices);
     }
 };
 
 struct Prices
 {
-    uint32_t len = 0;
     uint32_t unk0 = 0;
     BuildingPrices buildingPrices;
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
+        uint32_t len = 0;
         READ(b, len);
         READ(b, unk0);
         buildingPrices.load(b);
diff --git a/src/mmp_extractor/mmp.cpp b/src/mmp_extractor/mmp.cpp
index c9dc84f..6b10868 100644
--- a/src/mmp_extractor/mmp.cpp
+++ b/src/mmp_extractor/mmp.cpp
@@ -22,17 +22,17 @@
 #include <fstream>
 #include <iomanip>
 
-void water_segment::load(buffer &b)
+void water_segment::load(const buffer &b)
 {
     wg.load(b);
 }
 
-void weather_segment::load(buffer &b)
+void weather_segment::load(const buffer &b)
 {
     wg.load(b);
 }
 
-header_segment *header::create_segment(buffer &b)
+header_segment *header::create_segment(const buffer &b)
 {
     HeaderSegmentType type;
     READ(b, type);
@@ -59,7 +59,7 @@ header_segment *header::create_segment(buffer &b)
     return segment;
 }
 
-void header::load(buffer &b)
+void header::load(const buffer &b)
 {
     READ(b, unk0);
     READ_WSTRING(b, name1);
@@ -78,7 +78,7 @@ void header::load(buffer &b)
     }
 }
 
-void segment::load(buffer &b)
+void segment::load(const buffer &b)
 {
     READ(b, desc);
     buffer b2(b);
@@ -86,7 +86,7 @@ void segment::load(buffer &b)
     READ(b2, d);
 }
 
-void mmp::load(buffer &b)
+void mmp::load(const buffer &b)
 {
     h.load(b);
     xsegs = (h.width - 1) / 64;
diff --git a/src/mmp_extractor/mmp.h b/src/mmp_extractor/mmp.h
index 825da22..44c142d 100644
--- a/src/mmp_extractor/mmp.h
+++ b/src/mmp_extractor/mmp.h
@@ -41,21 +41,21 @@ struct header_segment
     uint32_t unk0;
     uint32_t len;
 
-    virtual void load(buffer &b) = 0;
+    virtual void load(const buffer &b) = 0;
 };
 
 struct water_segment : public header_segment
 {
     water_group wg;
 
-    virtual void load(buffer &b) override;
+    virtual void load(const buffer &b) override;
 };
 
 struct weather_segment : public header_segment
 {
     weather_group wg;
 
-    virtual void load(buffer &b) override;
+    virtual void load(const buffer &b) override;
 };
 
 struct header
@@ -69,10 +69,10 @@ struct header
     std::string name;
     std::vector<header_segment*> segments;
 
-    void load(buffer &b);
+    void load(const buffer &b);
 
 private:
-    header_segment *create_segment(buffer &b);
+    header_segment *create_segment(const buffer &b);
 };
 
 struct segment
@@ -139,7 +139,7 @@ struct segment
     description desc;
     data d;
 
-    void load(buffer &b);
+    void load(const buffer &b);
 };
 
 struct mmp
@@ -164,7 +164,7 @@ struct mmp
     mat<uint32_t> texmap_colored;
     mat<uint32_t> colormap;
 
-    void load(buffer &b);
+    void load(const buffer &b);
     void load(const std::string &filename);
     void loadTextureNames(const std::string &filename);
 
diff --git a/src/mod_converter/model.cpp b/src/mod_converter/model.cpp
index 46ce804..6398398 100644
--- a/src/mod_converter/model.cpp
+++ b/src/mod_converter/model.cpp
@@ -36,7 +36,7 @@ std::string Vector4::print() const
     return s;
 }
 
-void vertex::load(buffer &b, uint32_t flags)
+void vertex::load(const buffer &b, uint32_t flags)
 {
     READ(b, vX);
     READ(b, vZ);
@@ -74,7 +74,7 @@ std::string vertex::printTex() const
     return s;
 }
 
-void damage_model::load(buffer &b)
+void damage_model::load(const buffer &b)
 {
     READ(b, n_polygons);
     polygons.resize(n_polygons);
@@ -94,7 +94,7 @@ void damage_model::load(buffer &b)
         READ(b, t);
 }
 
-void animation::load(buffer &b)
+void animation::load(const buffer &b)
 {
     READ(b, type);
     READ(b, name);
@@ -105,14 +105,14 @@ void animation::load(buffer &b)
         s.loadData(b);
 }
 
-void animation::segment::loadHeader(buffer &b)
+void animation::segment::loadHeader(const buffer &b)
 {
     READ(b, n);
     READ(b, unk0);
     READ(b, unk1);
 }
 
-void animation::segment::loadData(buffer &b)
+void animation::segment::loadData(const buffer &b)
 {
     if (n == 0)
         return;
@@ -190,7 +190,7 @@ std::string block::printObj(const std::string &mtl_name) const
     return s;
 }
 
-void block::load(buffer &b)
+void block::load(const buffer &b)
 {
     // header
     READ(b, type);
@@ -267,7 +267,7 @@ void block::load(buffer &b)
         throw std::logic_error("extraction error: block #" + std::string(name));
 }
 
-void model::load(buffer &b)
+void model::load(const buffer &b)
 {
     READ(b, n_blocks);
     if (n_blocks > 1000) // probably bad file
diff --git a/src/mod_converter/model.h b/src/mod_converter/model.h
index 587710a..c6b5753 100644
--- a/src/mod_converter/model.h
+++ b/src/mod_converter/model.h
@@ -77,7 +77,7 @@ struct vertex
     float t1;
     float t2;
 
-    void load(buffer &b, uint32_t flags);
+    void load(const buffer &b, uint32_t flags);
 
     std::string printVertex() const;
     std::string printNormal() const;
@@ -103,15 +103,15 @@ struct animation
         std::vector<triangle> triangles;
         std::vector<unk_float6> unk2;
 
-        void loadHeader(buffer &b);
-        void loadData(buffer &b);
+        void loadHeader(const buffer &b);
+        void loadData(const buffer &b);
     };
 
     uint32_t type;
     char name[0xC];
     segment segments[4];
 
-    virtual void load(buffer &b);
+    virtual void load(const buffer &b);
 };
 
 struct damage_model
@@ -127,7 +127,7 @@ struct damage_model
     std::vector<vertex> vertices;
     std::vector<uint16_t> triangles;
 
-    virtual void load(buffer &b);
+    virtual void load(const buffer &b);
 };
 
 struct material
@@ -212,7 +212,7 @@ struct block
     std::vector<animation> animations;
     std::vector<damage_model> damage_models;
 
-    void load(buffer &b);
+    void load(const buffer &b);
     std::string printMtl(const std::string &mtl_name) const;
     std::string printObj(const std::string &mtl_name) const;
 };
@@ -223,5 +223,5 @@ struct model
     char header[0x40];
     std::vector<block> blocks;
 
-    void load(buffer &b);
+    void load(const buffer &b);
 };
diff --git a/src/mpj_loader/mpj.cpp b/src/mpj_loader/mpj.cpp
index 1feadb3..a77fc5a 100644
--- a/src/mpj_loader/mpj.cpp
+++ b/src/mpj_loader/mpj.cpp
@@ -23,7 +23,7 @@
 #include <fstream>
 #include <iomanip>
 
-segment *segment::create_segment(buffer &b)
+segment *segment::create_segment(const buffer &b)
 {
     SegmentType type;
     READ(b, type);
@@ -79,7 +79,7 @@ segment *segment::create_segment(buffer &b)
     return segment;
 }
 
-void map_data::load(buffer &b)
+void map_data::load(const buffer &b)
 {
     auto sz = b.size();
     assert(sz % 3 == 0);
@@ -94,7 +94,7 @@ void map_data::load(buffer &b)
 #undef READ_SEG
 }
 
-void surface::load(buffer &b)
+void surface::load(const buffer &b)
 {
     while (!b.eof())
     {
@@ -105,36 +105,36 @@ void surface::load(buffer &b)
     }
 }
 
-void weather_data::load(buffer &b)
+void weather_data::load(const buffer &b)
 {
     wg.load(b);
 }
 
-void objects_data::load(buffer &b)
+void objects_data::load(const buffer &b)
 {
     objects.load(b);
 }
 
-void segment7::load(buffer &b)
+void segment7::load(const buffer &b)
 {
     auto n = b.size() / sizeof(decltype(data)::value_type);
     data.resize(n);
     READ_N(b, data[0], n);
 }
 
-void water_data::load(buffer &b)
+void water_data::load(const buffer &b)
 {
     wg.load(b);
 }
 
-void segment9::load(buffer &b)
+void segment9::load(const buffer &b)
 {
     auto n = b.size() / sizeof(decltype(data)::value_type);
     data.resize(n);
     READ_N(b, data[0], n);
 }
 
-void building_goods::load(buffer &b)
+void building_goods::load(const buffer &b)
 {
     READ(b, unk1);
     READ(b, n);
@@ -143,7 +143,7 @@ void building_goods::load(buffer &b)
         bg.load(b);
 }
 
-void map_music::load(buffer &b)
+void map_music::load(const buffer &b)
 {
     while (!b.eof())
     {
@@ -154,7 +154,7 @@ void map_music::load(buffer &b)
     }
 }
 
-void organizations::load(buffer &b)
+void organizations::load(const buffer &b)
 {
     READ(b, n);
     orgs.resize(n);
@@ -163,7 +163,7 @@ void organizations::load(buffer &b)
     bases.load(b);
 }
 
-void gliders_n_goods::load(buffer &b)
+void gliders_n_goods::load(const buffer &b)
 {
     READ(b, n_good_groups);
     READ(b, n_gliders);
@@ -176,7 +176,7 @@ void gliders_n_goods::load(buffer &b)
         g.load(b);
 }
 
-void header::load(buffer &b)
+void header::load(const buffer &b)
 {
     READ(b, magic);
     if (memcmp(magic, "MPRJ", 4) != 0)
@@ -212,7 +212,7 @@ void header::load(buffer &b)
     }
 }
 
-void mpj::load(buffer &b)
+void mpj::load(const buffer &b)
 {
     h.load(b);
 }
diff --git a/src/mpj_loader/mpj.h b/src/mpj_loader/mpj.h
index 22ec4c7..7256876 100644
--- a/src/mpj_loader/mpj.h
+++ b/src/mpj_loader/mpj.h
@@ -50,8 +50,8 @@ struct segment
 
     virtual ~segment() {}
 
-    static segment *create_segment(buffer &b);
-    virtual void load(buffer &b) = 0;
+    static segment *create_segment(const buffer &b);
+    virtual void load(const buffer &b) = 0;
 };
 
 struct map_data : public segment
@@ -60,7 +60,7 @@ struct map_data : public segment
     std::vector<uint32_t> unk2;
     std::vector<uint32_t> unk3;
 
-    virtual void load(buffer &b) override;
+    virtual void load(const buffer &b) override;
 };
 
 struct surface : public segment
@@ -72,42 +72,42 @@ struct surface : public segment
     };
     std::vector<value> unk1;
 
-    virtual void load(buffer &b) override;
+    virtual void load(const buffer &b) override;
 };
 
 struct weather_data : public segment
 {
     weather_group wg;
 
-    virtual void load(buffer &b) override;
+    virtual void load(const buffer &b) override;
 };
 
 struct objects_data : public segment
 {
     Objects objects;
 
-    virtual void load(buffer &b) override;
+    virtual void load(const buffer &b) override;
 };
 
 struct segment7 : public segment
 {
     std::vector<uint32_t> data;
 
-    virtual void load(buffer &b) override;
+    virtual void load(const buffer &b) override;
 };
 
 struct water_data : public segment
 {
     water_group wg;
 
-    virtual void load(buffer &b) override;
+    virtual void load(const buffer &b) override;
 };
 
 struct segment9 : public segment
 {
     std::vector<uint32_t> data;
 
-    virtual void load(buffer &b) override;
+    virtual void load(const buffer &b) override;
 };
 
 struct building_goods : public segment
@@ -117,7 +117,7 @@ struct building_goods : public segment
         BuildingGoods bg;
         uint32_t unk0;
 
-        void load(buffer &b)
+        void load(const buffer &b)
         {
             bg.load(b);
             READ(b, unk0);
@@ -127,7 +127,7 @@ struct building_goods : public segment
     uint32_t n;
     std::vector<bg_internal> bgs;
 
-    virtual void load(buffer &b) override;
+    virtual void load(const buffer &b) override;
 };
 
 struct map_music : public segment
@@ -135,7 +135,7 @@ struct map_music : public segment
     std::vector<MapMusic> mms;
     uint32_t unk1;
 
-    virtual void load(buffer &b) override;
+    virtual void load(const buffer &b) override;
 };
 
 struct organizations : public segment
@@ -144,7 +144,7 @@ struct organizations : public segment
     std::vector<Organization> orgs;
     OrganizationBases bases;
 
-    virtual void load(buffer &b) override;
+    virtual void load(const buffer &b) override;
 };
 
 struct gliders_n_goods : public segment
@@ -154,7 +154,7 @@ struct gliders_n_goods : public segment
         std::string name;
         int unk0[3];
 
-        void load(buffer &b)
+        void load(const buffer &b)
         {
             READ_STRING(b, name);
             READ(b, unk0);
@@ -166,7 +166,7 @@ struct gliders_n_goods : public segment
         uint32_t n_goods;
         std::vector<Good> goods;
 
-        void load(buffer &b)
+        void load(const buffer &b)
         {
             READ(b, n_goods);
             goods.resize(n_goods);
@@ -181,7 +181,7 @@ struct gliders_n_goods : public segment
     uint32_t unk1;
     std::vector<Goods> goods;
 
-    virtual void load(buffer &b) override;
+    virtual void load(const buffer &b) override;
 };
 
 struct header
@@ -196,7 +196,7 @@ struct header
     char unk4[0x3F4];
     std::vector<segment*> segments;
 
-    void load(buffer &b);
+    void load(const buffer &b);
 };
 
 struct mpj
@@ -206,6 +206,6 @@ struct mpj
     //
     std::string filename;
 
-    void load(buffer &b);
+    void load(const buffer &b);
     void load(const std::string &filename);
 };
diff --git a/src/save_loader/save.h b/src/save_loader/save.h
new file mode 100644
index 0000000..ee6d3f5
--- /dev/null
+++ b/src/save_loader/save.h
@@ -0,0 +1,799 @@
+/*
+ * AIM save_loader
+ * Copyright (C) 2016 lzwdgc
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <buffer.h>
+#include <mat.h>
+#include <objects.h>
+#include <types.h>
+
+// common structs
+
+struct int_variable
+{
+    std::string name;
+    uint32_t value;
+
+    void load(const buffer &b)
+    {
+        READ_STRING(b, name);
+        READ(b, value);
+    }
+};
+
+struct single_string
+{
+    std::string name;
+
+    void load(const buffer &b)
+    {
+        READ_STRING(b, name);
+    }
+};
+
+struct string_variable
+{
+    std::string name;
+    std::string value;
+
+    void load(const buffer &b)
+    {
+        READ_STRING(b, name);
+        READ_STRING(b, value);
+    }
+};
+
+// segments
+
+struct segment
+{
+    virtual void load(const buffer &) = 0;
+};
+
+struct header_segment : public segment
+{
+    uint32_t unk1[3];
+    std::string save_name;
+    vector3 position;
+    std::string mmp_file;
+    std::string location_name;
+    Common camera;
+    uint32_t unk2[7];
+
+    void load(const buffer &b)
+    {
+        READ(b, unk1);
+        READ_STRING_N(b, save_name, 0x60);
+        READ(b, position);
+        READ_STRING_N(b, mmp_file, 0x110);
+        READ_STRING(b, location_name);
+        READ(b, camera);
+        READ(b, unk2);
+    }
+};
+
+struct string_segment : public segment
+{
+    std::string s;
+
+    void load(const buffer &b)
+    {
+        READ_PASCAL_STRING(b, s);
+    }
+};
+
+struct screen_segment : public segment
+{
+    mat<color> screenshot{ 128, 128 };
+
+    void load(const buffer &b)
+    {
+        b.read((uint8_t*)screenshot.getData().data(), screenshot.getBytesLength());
+        // rows should be swapped now: bottom is the first row etc.
+    }
+};
+
+struct scripts_segment : public segment
+{
+    struct script_entry
+    {
+        std::string name;
+        std::string path;
+
+        void load(const buffer &b)
+        {
+            READ_STRING(b, name);
+            READ_STRING_N(b, path, 0x80);
+        }
+    };
+
+    struct script_entry_ext : public script_entry
+    {
+        uint32_t unk0[10];
+
+        void load(const buffer &b)
+        {
+            READ_STRING(b, name);
+            READ(b, unk0);
+            READ_STRING_N(b, path, 0x80);
+        }
+    };
+
+    std::vector<script_entry> bases;
+    std::vector<script_entry> events;
+    std::vector<script_entry_ext> unk0;
+    std::vector<int_variable> int_variables;
+    std::vector<string_variable> str_variables;
+
+    void load(const buffer &b)
+    {
+        b.read_vector(bases);
+        b.read_vector(events);
+        b.read_vector(unk0);
+        b.read_vector(int_variables);
+        b.read_vector(str_variables);
+    }
+};
+
+// todo
+struct radar_segment : public segment
+{
+    struct radar
+    {
+        char unk0[0x1C4];
+
+        void load(const buffer &b)
+        {
+            READ(b, unk0);
+        }
+    };
+
+    struct mechanoid5
+    {
+        std::string name;
+        float unk0[6];
+
+        void load(const buffer &b)
+        {
+            READ_STRING(b, name);
+            READ(b, unk0);
+        }
+    };
+
+    std::vector<radar> radars;
+    uint16_t unk0;
+    std::vector<mechanoid5> mechanoid5s;
+    std::vector<single_string> orgs;
+
+    void load(const buffer &b)
+    {
+        b.read_vector(radars);
+        READ(b, unk0);
+        b.read_vector(mechanoid5s);
+        b.read_vector(orgs);
+    }
+};
+
+// todo
+struct gamedata_segment : public segment
+{
+    void load(const buffer &b)
+    {
+    }
+};
+
+struct questlog_segment : public segment
+{
+    struct record
+    {
+        std::string name;
+        std::string name_journal;
+        uint32_t unk0[2];
+        std::string endtime;
+
+        void load(const buffer &b)
+        {
+            READ_STRING(b, name);
+            READ_STRING(b, name_journal);
+            READ(b, unk0);
+            READ_STRING(b, endtime);
+        }
+    };
+
+    uint32_t unk0;
+
+    std::vector<int_variable> int_variables;
+    std::vector<record> events;
+    std::vector<string_variable> story_quests;
+
+    void load(const buffer &b)
+    {
+        READ(b, unk0);
+        b.read_vector(int_variables);
+        b.read_vector(events);
+        b.read_vector(story_quests);
+    }
+};
+
+struct trade_segment : public segment
+{
+    struct Price
+    {
+        std::string tov_name;
+        float unk2[6];
+
+        void load(const buffer &b)
+        {
+            READ_STRING(b, tov_name);
+            READ(b, unk2);
+        }
+    };
+
+    struct BuildingPrice
+    {
+        std::string name;
+        std::vector<Price> prices;
+        uint32_t unk0;
+
+        void load(const buffer &b)
+        {
+            READ_STRING(b, name);
+            b.read_vector(prices);
+            READ(b, unk0);
+        }
+    };
+
+    uint32_t unk0 = 0;
+    std::vector<BuildingPrice> buildingPrices;
+
+    void load(const buffer &b)
+    {
+        READ(b, unk0);
+        b.read_vector(buildingPrices);
+    }
+};
+
+// todo
+struct env_segment : public segment
+{
+    void load(const buffer &b)
+    {
+    }
+};
+
+// todo
+struct orgrel_segment : public segment
+{
+    struct org_rep
+    {
+        char unk1[0xE0];
+
+        void load(const buffer &b)
+        {
+            READ(b, unk1);
+        }
+    };
+
+    std::vector<org_rep> org_reps;
+
+    void load(const buffer &b)
+    {
+        b.read_vector(org_reps);
+    }
+};
+
+struct others_segment : public segment
+{
+    uint32_t unk0;
+    uint32_t unk1;
+
+    void load(const buffer &b)
+    {
+        READ(b, unk0);
+        READ(b, unk1);
+    }
+};
+
+// todo
+struct mech_segment : public segment
+{
+    struct equipment
+    {
+        uint8_t id;
+        std::string name;
+        uint32_t unk0;
+        uint32_t unk1;
+
+        void load(const buffer &b)
+        {
+            READ(b, id);
+            READ_STRING(b, name);
+            READ(b, unk0);
+            READ(b, unk1);
+        }
+    };
+
+    struct moddable_equipment
+    {
+        std::string name;
+        ModificatorMask mask;
+
+        void load(const buffer &b)
+        {
+            READ_STRING(b, name);
+            READ(b, mask);
+        }
+    };
+
+    struct unk_equ
+    {
+        uint8_t id;
+        std::string name;
+        uint32_t unk0;
+        uint32_t unk1;
+
+        void load(const buffer &b)
+        {
+            READ(b, id);
+            READ_STRING(b, name);
+            READ(b, unk0);
+            READ(b, unk1);
+        }
+    };
+
+    struct hold_item
+    {
+        enum class Type : uint32_t
+        {
+            Good = 0,
+            Mechanoid = 2,
+        };
+
+        Type type;
+        std::string name;
+        uint32_t count;
+        uint32_t unk0;
+        uint32_t unk1;
+
+        void load(const buffer &b)
+        {
+            READ(b, type);
+            READ_STRING(b, name);
+            READ(b, count);
+            READ(b, unk0);
+            READ(b, unk1);
+        }
+    };
+
+    struct glider
+    {
+        moddable_equipment glider_;
+        moddable_equipment weapon1;
+        moddable_equipment weapon2;
+        moddable_equipment reactor1;
+        moddable_equipment reactor2;
+        moddable_equipment engine1;
+        moddable_equipment engine2;
+        moddable_equipment energy_shield;
+        moddable_equipment armor;
+
+        uint32_t unk0;
+        uint32_t unk1;
+        std::string unk2; // fast bomb
+        uint32_t unk3;
+
+        unk_equ ureactor1;
+        unk_equ ureactor2;
+        unk_equ uengine1;
+        unk_equ uengine2;
+        unk_equ uenergy_shield;
+        unk_equ uarmor;
+
+        std::string unk4;
+        uint32_t unk5[3];
+
+        float money;
+
+        std::vector<hold_item> items;
+
+        void load(const buffer &b)
+        {
+            glider_.load(b);
+            weapon1.load(b);
+            weapon2.load(b);
+            reactor1.load(b);
+            reactor2.load(b);
+            engine1.load(b);
+            engine2.load(b);
+            energy_shield.load(b);
+            armor.load(b);
+
+            // ?
+            READ(b, unk0);
+            READ(b, unk1);
+            if (unk0)
+                READ_STRING(b, unk2);
+            READ(b, unk3);
+
+            ureactor1.load(b);
+            ureactor2.load(b);
+            uengine1.load(b);
+            uengine2.load(b);
+            uenergy_shield.load(b);
+            uarmor.load(b);
+
+            READ_STRING(b, unk4);
+            READ(b, unk5);
+
+            READ(b, money);
+
+            b.read_vector(items);
+
+            if (unk0)
+                b.skip(0x15D);
+            else
+                b.skip(0x150);
+        }
+    };
+
+    struct mech
+    {
+        uint8_t id;
+        std::string name;
+        std::string name2;
+        std::string org;
+        std::string building;
+
+        //Common pos;
+        uint8_t unk2;
+        uint32_t unk3;
+        std::vector<equipment> equipments;
+        uint32_t unk4[8];
+        glider g;
+
+        uint32_t unk5[8];
+        uint8_t unk6;
+
+        void load(const buffer &b)
+        {
+            READ(b, id);
+            READ_STRING(b, name);
+            READ_STRING(b, name2);
+            READ_STRING(b, org);
+            READ_STRING(b, building);
+
+                //READ(b, pos);
+            READ(b, unk2);
+            READ(b, unk3);
+            b.read_vector(equipments);
+            READ(b, unk4);
+            g.load(b);
+        }
+    };
+
+    std::vector<mech> mechs;
+
+    void load(const buffer &b)
+    {
+        b.read_vector(mechs);
+    }
+};
+
+// todo
+struct groups_segment : public segment
+{
+    struct group
+    {
+        vector3 pos;
+        std::string org;
+        float unk0[12];
+
+        void load(const buffer &b)
+        {
+            READ(b, pos);
+            READ_STRING(b, org);
+            READ(b, unk0);
+        }
+    };
+
+    std::vector<group> groups;
+
+    void load(const buffer &b)
+    {
+        b.read_vector(groups);
+    }
+};
+
+struct orgdata_segment : public segment
+{
+    struct org_config
+    {
+        std::vector<single_string> names;
+
+        void load(const buffer &b)
+        {
+            b.read_vector(names);
+        }
+    };
+
+    struct orgdata
+    {
+        uint32_t unk0;
+        std::string org;
+        float unk1[4];
+        uint32_t unk2[2];
+        float rep[50];
+        std::vector<org_config> configs;
+
+        void load(const buffer &b)
+        {
+            READ(b, unk0);
+            READ_STRING(b, org);
+            READ(b, unk1);
+            READ(b, unk2);
+            READ(b, rep);
+            b.read_vector(configs, 3);
+        }
+    };
+
+    std::vector<orgdata> orgdatas;
+
+    void load(const buffer &b)
+    {
+        b.read_vector(orgdatas);
+    }
+};
+
+struct builds_segment : public segment
+{
+    struct build
+    {
+        std::string bld;
+        std::string org;
+        float unk1;
+
+        void load(const buffer &b)
+        {
+            READ_STRING(b, bld);
+            READ_STRING(b, org);
+            READ(b, unk1);
+        }
+    };
+
+    std::vector<build> builds;
+
+    void load(const buffer &b)
+    {
+        b.read_vector(builds);
+    }
+};
+
+// todo
+struct orgs_segment : public segment
+{
+    struct org
+    {
+        void load(const buffer &b)
+        {
+        }
+    };
+
+    std::vector<org> orgs;
+
+    void load(const buffer &b)
+    {
+        b.read_vector(orgs);
+    }
+};
+
+struct tradeeqp_segment : public segment
+{
+    struct Good
+    {
+        std::string tov_name;
+        uint32_t unk0;
+        uint32_t mask;
+        float price;
+        int32_t count;
+        float probability;
+
+        void load(const buffer &b)
+        {
+            READ_STRING(b, tov_name);
+            READ(b, unk0);
+            READ(b, mask);
+            READ(b, price);
+            READ(b, count);
+            READ(b, probability);
+        }
+    };
+
+    struct bld
+    {
+        std::string name;
+        std::vector<Good> prices;
+
+        void load(const buffer &b)
+        {
+            READ_STRING(b, name);
+            b.read_vector(prices);
+        }
+    };
+
+    uint32_t unk0 = 0;
+    std::vector<Good> prices;
+    std::vector<bld> blds;
+
+    void load(const buffer &b)
+    {
+        READ(b, unk0);
+        b.read_vector(prices);
+        b.read_vector(blds);
+    }
+};
+
+// todo
+struct objects_segment : public segment
+{
+    struct object
+    {
+        void load(const buffer &b)
+        {
+        }
+    };
+
+    std::vector<object> objects;
+
+    void load(const buffer &b)
+    {
+        b.read_vector(objects);
+    }
+};
+
+struct mms_state_segment : public segment
+{
+    std::string name;
+
+    void load(const buffer &b)
+    {
+        READ_STRING(b, name);
+    }
+};
+
+// todo
+struct mms_c_config_segment : public segment
+{
+    struct object
+    {
+        void load(const buffer &b)
+        {
+        }
+    };
+
+    std::vector<object> objects;
+
+    void load(const buffer &b)
+    {
+        b.read_vector(objects);
+    }
+};
+
+struct mms_world_data_segment : public segment
+{
+    float unk0;
+
+    void load(const buffer &b)
+    {
+        READ(b, unk0);
+    }
+};
+
+struct mainmech_segment : public segment
+{
+    uint32_t unk0[9];
+
+    void load(const buffer &b)
+    {
+        READ(b, unk0);
+    }
+};
+
+struct segment_desc
+{
+    std::string name;
+    uint32_t len2;
+    segment *seg = nullptr;
+
+    void load(const buffer &b)
+    {
+        READ_STRING(b, name);
+        uint32_t unk0;
+        READ(b, unk0);
+        uint32_t len;
+        READ(b, len);
+        uint32_t offset;
+        READ(b, offset);
+        uint32_t unk1;
+        READ(b, unk1);
+        READ(b, len2);
+
+        uint32_t start = b.index();
+        uint32_t end = start + len2;
+
+#define SWITCH(s, t) if (name == s) seg = new t
+#define CASE(s, t) else SWITCH(s, t)
+#define DEFAULT else
+
+        SWITCH("HEADER", header_segment);
+        CASE("CAPTION", string_segment);
+        CASE("PLAYER", string_segment);
+        CASE("SCREEN", screen_segment);
+        CASE("SCRIPTS", scripts_segment);
+        //CASE("RADAR", radar_segment);
+        //CASE("GAMEDATA", gamedata_segment);
+        CASE("QUESTLOG", questlog_segment);
+        CASE("TRADE", trade_segment);
+        //CASE("ENV", env_segment);
+        //CASE("ORGREL", orgrel_segment);
+        CASE("OTHERS", others_segment);
+        //CASE("MECH", mech_segment);
+        //CASE("GROUPS", groups_segment);
+        CASE("ORGDATA", orgdata_segment);
+        CASE("BUILDS", builds_segment);
+        //CASE("ORGS", orgs_segment);
+        CASE("TRADEEQP", tradeeqp_segment);
+        //CASE("OBJECTS", objects_segment);
+        CASE("MMS_STATE", mms_state_segment);
+        //CASE("MMS_C_CONFIG", mms_c_config_segment);
+        CASE("MMS_WORLD_DATA", mms_world_data_segment);
+        CASE("MAINMECH", mainmech_segment);
+        DEFAULT
+        {
+            std::cout << "skipped " << name << " size = " << len2 << "\n";
+            b.skip(len2);
+            return;
+        }
+
+        seg->load(b);
+
+#undef SWITCH
+#undef CASE
+#undef DEFAULT
+    }
+};
+
+struct save
+{
+    uint32_t magick;
+    uint32_t unk0;
+    std::vector<segment_desc> segments;
+
+    void load(const buffer &b)
+    {
+        READ(b, magick);
+        READ(b, unk0);
+
+        while (!b.eof())
+        {
+            segment_desc sd;
+            sd.load(b);
+            segments.push_back(sd);
+        }
+    }
+};
diff --git a/src/save_loader/save_loader.bat b/src/save_loader/save_loader.bat
new file mode 100644
index 0000000..c01215b
--- /dev/null
+++ b/src/save_loader/save_loader.bat
@@ -0,0 +1 @@
+python save_loader.py --dir "h:\\Games\\Steam\\steamapps\\common\\AIM2\\SAVES\\"
\ No newline at end of file
diff --git a/src/save_loader/save_loader.cpp b/src/save_loader/save_loader.cpp
index 151dc82..a01821f 100644
--- a/src/save_loader/save_loader.cpp
+++ b/src/save_loader/save_loader.cpp
@@ -17,6 +17,17 @@
  */
 
 #include <iostream>
+#include <string>
+
+#include "save.h"
+
+save read_save(const std::string &fn)
+{
+    buffer f(readFile(fn));
+    save s;
+    s.load(f);
+    return s;
+}
 
 int main(int argc, char *argv[])
 try
@@ -26,6 +37,7 @@ try
         printf("Usage: %s file.sav\n", argv[0]);
         return 1;
     }
+    auto s = read_save(argv[1]);
     return 0;
 }
 catch (std::exception &e)
diff --git a/src/save_loader/save_loader.py b/src/save_loader/save_loader.py
new file mode 100644
index 0000000..ad25095
--- /dev/null
+++ b/src/save_loader/save_loader.py
@@ -0,0 +1,23 @@
+#!/usr/bin/python3
+# -*- coding: utf-8 -*-
+
+import argparse
+import os
+import subprocess
+
+def main():
+    parser = argparse.ArgumentParser(description='Batch models converter')
+    parser.add_argument('--dir', dest='dir', help='path to directory with models')
+    pargs = parser.parse_args()
+
+    if pargs.dir:
+        run(pargs.dir)
+
+def run(dir):
+    for root, subdirs, files in os.walk(dir):
+        for file in files:
+            p = subprocess.Popen(['save_loader.exe', os.path.join(root, file)])
+            p.communicate()
+
+if __name__ == '__main__':
+    main()
diff --git a/src/script2txt/script.h b/src/script2txt/script.h
index b4110af..bd74745 100644
--- a/src/script2txt/script.h
+++ b/src/script2txt/script.h
@@ -36,7 +36,7 @@ struct script
     //
     std::vector<std::string> lines;
 
-    void load(buffer &b)
+    void load(const buffer &b)
     {
         READ(b, file_size);
         READ(b, unk0);