BStone

Unofficial source port for Blake Stone series (Aliens Of Gold and Planet Strike).

Contents

1. Disclaimer
2. Overview
3. Known issues
   3.1 Windows
4. Installation
   4.1 Windows (GOG / Steam)
   4.2 Windows (Generic)
   4.3 Addons
5. Required assets
6. Profile
7. Audio
   7.1 OpenAL driver
8. External textures
   8.1 Aspect ratio
   8.2 Transparency
   8.3 Naming conventions
   8.4 Supported file formats
   8.5 File format search order
9. Taking screenshots
10. Compiling
    10.1. Generic instructions for Linux-based system or build environment (MinGW)
11. Command-line options
12. Cheat key
13. Debug keys
14. Third party use
15. Credits
16. Links
    16.1. Essentials
    16.2. General
    16.3. Add-ons for Aliens Of Gold (full)
    16.4. Add-ons for Planet Strike

1 - Disclaimer

Copyright (c) 1992-2013 Apogee Entertainment, LLC
Copyright (c) 2013-2024 Boris I. Bendovsky ([email protected])

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 2
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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

For a copy of the GNU General Public License see file LICENSE.
For an original source code license see file "Blake Stone source code license.doc".

2 - Overview

BStone is unofficial source port for "Blake Stone" game series: "Aliens Of Gold" and "Planet Strike".

Features:

• High resolution vanilla rendering
• 3D-rendering
• Upscale texture filter
• Support for external textures
• Allows to customize control bindings
• 3D-audio
• Separate volume control of sound effects and music

Supported games:

• Aliens Of Gold (v1.0/v2.0/v2.1/v3.0) full or shareware
• Planet Strike (v1.0/v1.1)

3 - Known issues

3.1 - Windows

Problem: OpenAL runtime v1.9.9 causes a (crash)[http://github.com/bibendovsky/bstone/issues/375] in non-MinGW-W64 build.
Solution: Update the (OpenAL runtime)[http://openal.org/].

4 - Installation

• Download the latest release. https://github.com/bibendovsky/bstone/releases/latest

4.1 - Windows (GOG / Steam)

• Extract it into convinient for you directory.
• Run bstone.exe to play.

4.2 - Windows (generic)

• Extract it into the directory with game files (*.BS1 / *.BS6 / *.VSI).
• Run bstone.exe to play.

4.3 - Addons

• Put addon's files into separate directory. Do not overwrite any original files!
• Run with command line option --mod_dir to point to this directory (i.e. bstone.exe --mod_dir addon1).

5 - Required assets

Since all titles except shareware are not free you have to own a copy of the game in order to play.

Required files for each game:

AOG SW	AOG	PS
AUDIOHED.BS1	AUDIOHED.BS6	AUDIOHED.VSI
AUDIOT.BS1	AUDIOT.BS6	AUDIOT.VSI
	EANIM.BS6	EANIM.VSI
	GANIM.BS6
IANIM.BS1	IANIM.BS6	IANIM.VSI
MAPHEAD.BS1	MAPHEAD.BS6	MAPHEAD.VSI
MAPTEMP.BS1	MAPTEMP.BS6	MAPTEMP.VSI
SANIM.BS1	SANIM.BS6
VGADICT.BS1	VGADICT.BS6	VGADICT.VSI
VGAGRAPH.BS1	VGAGRAPH.BS6	VGAGRAPH.VSI
VGAHEAD.BS1	VGAHEAD.BS6	VGAHEAD.VSI
VSWAP.BS1	VSWAP.BS6	VSWAP.VSI

SHA-1 for AOG SW v1.0:

File name	SHA-1
AUDIOHED.BS1	0c3de403b524107809fa9308b730d60e8e41ba93
AUDIOT.BS1	3d4e8b62aa4683671027513ad9720f76f176ba5b
IANIM.BS1	ba1fa5b0bc34f148deffb4977a3cd1e718e91bbd
MAPHEAD.BS1	55b9eb9ed555b0f249c2cefd54ecc3f511bfcd55
MAPTEMP.BS1	293464e7143ff7e6faf5f5b20799e76a394d65bf
SANIM.BS1	22bf818465da0f32eef9611de936cba9966b14aa
VGADICT.BS1	b54d48d35d095e27a3c9130cfa59ed9c4f05abe7
VGAGRAPH.BS1	d1fa19131281d30787125f946881652be876f57a
VGAHEAD.BS1	cc44c362e9e2c9f7b9fb2e4ba31331dde42a1e96
VSWAP.BS1	37412ca9139562fc31330d72470822de4d9ceb4a

SHA-1 for AOG SW v2.0:

File name	SHA-1
AUDIOHED.BS1	0c3de403b524107809fa9308b730d60e8e41ba93
AUDIOT.BS1	3d4e8b62aa4683671027513ad9720f76f176ba5b
IANIM.BS1	ba1fa5b0bc34f148deffb4977a3cd1e718e91bbd
MAPHEAD.BS1	04a8e4e7c360f6033dc70f7b09edbc4a6447e462
MAPTEMP.BS1	bbb3cd6ab3e742eada427862504eba06437036d0
SANIM.BS1	22bf818465da0f32eef9611de936cba9966b14aa
VGADICT.BS1	058fe0b59c7aa020bf4e7509103892d4c7459aa6
VGAGRAPH.BS1	e14b6172b6ab7568d3736f087f07a0df5eac5dad
VGAHEAD.BS1	6c0e273df7fd3940c038fc20a5bdfb81cd50e7ef
VSWAP.BS1	dbde907ba1110bef445d6daae283c4520d6951b4

SHA-1 for AOG SW v2.1:

File name	SHA-1
AUDIOHED.BS1	e2c101f9fd4bc7e22ddbfa3f019c9303877de4e2
AUDIOT.BS1	b79e7afcb4e4b29e59660ec261f72ff1ab4d3a25
IANIM.BS1	ba1fa5b0bc34f148deffb4977a3cd1e718e91bbd
MAPHEAD.BS1	04a8e4e7c360f6033dc70f7b09edbc4a6447e462
MAPTEMP.BS1	bbb3cd6ab3e742eada427862504eba06437036d0
SANIM.BS1	22bf818465da0f32eef9611de936cba9966b14aa
VGADICT.BS1	ed1ab61ad2529e046f966d9c1627508f76693ef8
VGAGRAPH.BS1	b59cbe3793b4612b06254ece48bf8e961ab6f528
VGAHEAD.BS1	0635a4a2b823eef2904ed1d590d98362fb16621d
VSWAP.BS1	dbde907ba1110bef445d6daae283c4520d6951b4

SHA-1 for AOG SW v3.0:

File name	SHA-1
AUDIOHED.BS1	e2c101f9fd4bc7e22ddbfa3f019c9303877de4e2
AUDIOT.BS1	b79e7afcb4e4b29e59660ec261f72ff1ab4d3a25
IANIM.BS1	ba1fa5b0bc34f148deffb4977a3cd1e718e91bbd
MAPHEAD.BS1	04a8e4e7c360f6033dc70f7b09edbc4a6447e462
MAPTEMP.BS1	bbb3cd6ab3e742eada427862504eba06437036d0
SANIM.BS1	22bf818465da0f32eef9611de936cba9966b14aa
VGADICT.BS1	537676ddcafeee415c22bb9d00097b25bc7e13c5
VGAGRAPH.BS1	9f9f4c40c9637af472ce5e1a360e51364c3a418a
VGAHEAD.BS1	e7fb8f241b8fa94739c3bd09ea05c1afc7bbfc95
VSWAP.BS1	dbde907ba1110bef445d6daae283c4520d6951b4

SHA-1 for AOG v1.0:

File name	SHA-1
AUDIOHED.BS6	e2c101f9fd4bc7e22ddbfa3f019c9303877de4e2
AUDIOT.BS6	b79e7afcb4e4b29e59660ec261f72ff1ab4d3a25
EANIM.BS6	af5af59ad7ed17517d87b3ece3c0cac23ade535b
GANIM.BS6	9b2418a1a1f34abdcf6fcd9ed3344a49912c9b5e
IANIM.BS6	ba1fa5b0bc34f148deffb4977a3cd1e718e91bbd
MAPHEAD.BS6	6f19a144d8985e90f096fc1c67ade58e9051235c
MAPTEMP.BS6	4d00c5f5c843f99a266bd938648192a6eff17b5a
SANIM.BS6	22bf818465da0f32eef9611de936cba9966b14aa
VGADICT.BS6	d4f81ace1701a7338d43ce07723c2adaafdc837c
VGAGRAPH.BS6	02dc27d4810e3ffa26540b310eac6091f5e16de0
VGAHEAD.BS6	639ec9e7a81ad83fc5b5c557cf4fc5fa28b9676b
VSWAP.BS6	0a700732ccbc72f95318a6226a7e1ad78ac713bb

SHA-1 for AOG v2.0:

File name	SHA-1
AUDIOHED.BS6	e2c101f9fd4bc7e22ddbfa3f019c9303877de4e2
AUDIOT.BS6	b79e7afcb4e4b29e59660ec261f72ff1ab4d3a25
EANIM.BS6	af5af59ad7ed17517d87b3ece3c0cac23ade535b
GANIM.BS6	9b2418a1a1f34abdcf6fcd9ed3344a49912c9b5e
IANIM.BS6	ba1fa5b0bc34f148deffb4977a3cd1e718e91bbd
MAPHEAD.BS6	028f624e150f84ffc8336336cb0ecea0932cc22d
MAPTEMP.BS6	8b48e7eb859382a4c84948c5a62899194288e853
SANIM.BS6	22bf818465da0f32eef9611de936cba9966b14aa
VGADICT.BS6	e83b690836c9edf9ef60f6189b8384fb2319b735
VGAGRAPH.BS6	67a679e3b107db8685ba5ff1643a38f9291b00bf
VGAHEAD.BS6	48b18caa86151610957b64b207cf2a2977ef7d57
VSWAP.BS6	6fcc6e007b02b2e55892cfa7acfd42966ef9c9fb

SHA-1 for AOG v2.1:

File name	SHA-1
AUDIOHED.BS6	e2c101f9fd4bc7e22ddbfa3f019c9303877de4e2
AUDIOT.BS6	b79e7afcb4e4b29e59660ec261f72ff1ab4d3a25
EANIM.BS6	af5af59ad7ed17517d87b3ece3c0cac23ade535b
GANIM.BS6	9b2418a1a1f34abdcf6fcd9ed3344a49912c9b5e
IANIM.BS6	ba1fa5b0bc34f148deffb4977a3cd1e718e91bbd
MAPHEAD.BS6	028f624e150f84ffc8336336cb0ecea0932cc22d
MAPTEMP.BS6	8b48e7eb859382a4c84948c5a62899194288e853
SANIM.BS6	22bf818465da0f32eef9611de936cba9966b14aa
VGADICT.BS6	e4ae3ef9a3ac158a832092b7b5487227337c6f13
VGAGRAPH.BS6	6868e6cc4f8cb9160a218c5bce680a11f64c675a
VGAHEAD.BS6	1a3864cd12de4b8fd6be023b73d2d79e91b9018d
VSWAP.BS6	6fcc6e007b02b2e55892cfa7acfd42966ef9c9fb

SHA-1 for AOG v3.0:

File name	SHA-1
AUDIOHED.BS6	e2c101f9fd4bc7e22ddbfa3f019c9303877de4e2
AUDIOT.BS6	b79e7afcb4e4b29e59660ec261f72ff1ab4d3a25
EANIM.BS6	af5af59ad7ed17517d87b3ece3c0cac23ade535b
GANIM.BS6	9b2418a1a1f34abdcf6fcd9ed3344a49912c9b5e
IANIM.BS6	ba1fa5b0bc34f148deffb4977a3cd1e718e91bbd
MAPHEAD.BS6	028f624e150f84ffc8336336cb0ecea0932cc22d
MAPTEMP.BS6	8b48e7eb859382a4c84948c5a62899194288e853
SANIM.BS6	22bf818465da0f32eef9611de936cba9966b14aa
VGADICT.BS6	60da35e506d57753f83cca5f232a76dd1cf074ba
VGAGRAPH.BS6	001037fafdff124befb5437c563d0b9c613b3c00
VGAHEAD.BS6	ff165ca5924d738853587a7e4ab1cd239e10e359
VSWAP.BS6	6fcc6e007b02b2e55892cfa7acfd42966ef9c9fb

SHA-1 for PS:

File name	SHA-1
AUDIOHED.VSI	2ed9a587926b2b455f8176788f595d03f6359171
AUDIOT.VSI	ecac8a800c5d021c8b68d170066c8859df9bd79a
EANIM.VSI	b668330e56ceb069c1b972cefddd8a3d618a14af
IANIM.VSI	ba1fa5b0bc34f148deffb4977a3cd1e718e91bbd
MAPHEAD.VSI	c3fb0a9b81e0240d12c952fe5b57b78c1108aa48
MAPTEMP.VSI	acd03031d526eeaee64072518adf6814f96e2a37
VGADICT.VSI	061692d166f68d7e0b81568725439078cc728f33
VGAGRAPH.VSI	e619a3e6245f79888da5436df138d63204d2caba
VGAHEAD.VSI	ad5fed9de5d1d82145df3ff2286e4bc62cb80e2a
VSWAP.VSI	4113ce83c42e69dc5cb20de79f41971a100f876e

Legend:

• AOG SW - Aliens Of Gold (shareware)
• AOG - Aliens Of Gold (full)
• PS - Planet Strike

Both all lowercase and all uppercase (default) file names are supported.

The port auto-detect assets of some digital distribution services.

Supported services:

• GOG
  Windows only.

• Steam
  Windows only.

6 - Profile

Configuration file, saved game files, etc. are stored in user's profile. The path to those files depends on platform. To override the path use --profile_dir option.

On Windows, the path might look like C:\Users\john\AppData\Roaming\bibendovsky\bstone\

On Linux, the path might look like /home/john/.local/share/bibendovsky/bstone/

On Mac OS X, the path might look like /Users/john/Library/Application Support/bibendovsky/bstone/

Configuration file name: bstone_config
Log file name: bstone_log.txt
High scores file name: bstone_<game>_high_scores
Saved game file name: bstone_<game>_saved_game

Where <game> is:

• aog_sw - Aliens Of Gold (shareware)
• aog_full - Aliens Of Gold (full)
• ps - Planet Strike

7 - Audio

Provides default stereo driver and optional 3D one.
Use option GAME OPTIONS - SOUND - DRIVER to change the driver.

7.1 - OpenAL driver

Supports any OpenAL v1.1 compatible implementation (Creative Labs, OpenAL Soft, etc.).
Implementation driver should be available system wide (i.e., via oalinst.exe) or should be placed along with port's binary.
Expected driver name is OpenAL32.dll on Windows or libopenal.so on non-Windows system.
Set configuration string snd_oal_library to use another name.

The port uses default device name.
Set configuration string snd_oal_device_name to open specific device.

8 - External textures

Allows to replace stocked textures with custom ones.

Supported targets: wall, sprite, flooring, ceiling.

Option GAME OPTIONS - VIDEO - TEXTURING - EXTERNAL TEXTURES enables or disables them on the fly.
WARNING Changing the option may take some time if the dimensions of loaded textures are high.

8.1 - Aspect ratio

Both vanilla games ran only in a 320x200 video mode. On monitors, widely available at the time, this video mode took up the entire screen, which had a 4:3 physical aspect ratio. This meant that the 320x200 display, with a 16:10 logical ratio, was stretched vertically - each pixel was 20% taller than it was wide.

In-game graphics have been specifically designed for the 320x200 resolution as stretched to a 4:3 physical aspect ratio.

The port stretches the geometry (world, objects) vertically by 20%. That means if you created a wall or sprite texture, for example, with physical dimensions 1024x1024 it will be rendered as 1024x1228, i.e. stretched.

Flooring and ceiling textures has always 1:1 aspect ratio.

TLDR

• Design wall, sprite, HUD element or screen images in 1:1.2 aspect ratio (i.e. 1280x1536), but export for the game in 1:1 aspect ratio (i.e. 1024x1024).
• Design flooring or ceiling image in 1:1 aspect ratio (i.e. 1280x1280), and export for the game in 1:1 aspect ratio (i.e. 1024x1024) too.

8.2 - Transparency

Images with alpha channel should be exported as premultiplied.

8.3 - Naming conventions

All letters should be lower case.

"Aliens Of Gold" resources are goes into aog directory. "Planet Strike" resources are goes into ps directory.

Sprite name format: sprite_xxxxxxxx.ext. Wall name format: wall_xxxxxxxx.ext.

Where:

• xxxxxxxx - an internal decimal number of the sprite padded with zero on the left. For "Aliens Of Gold" those internal numbers are based on version 2.1.
• .ext - file name extension.

Examples:

• aog/sprite_00000034.bmp - "Aliens Of Gold" yellow key card sprite in BMP format.
• aog/wall_00000088.png - "Aliens Of Gold" turned on south-north switch wall in PNG format.

8.4 - Supported file formats

• Windows BMP
• PNG

8.5 - File format search order

1. PNG
2. BMP

9 - Taking screenshots

Default key is F5.
Use menu to modify bindings.

Taken screenshots are placed in the profile directory.

Supported format: PNG

10 - Compiling

Minimum requirements:

• C++14 compatible compiler.
  • GCC 5.0
  • Clang 3.4
  • MSVC (VS 2017 15.0)
• CMake 3.4.0
• SDL v2.0.4

CMake variables:

• CMAKE_BUILD_TYPE
  Selects which build(s) to compile. Use semicolon to separate entries. Usually it's Release. For other values see CMake documentation.

• CMAKE_INSTALL_PREFIX
  Selects location where to install files to.

• BSTONE_PANDORA
  Enables build for Open Pandora.

• BSTONE_USE_PCH
  If enabled utilizes precompiled headers to speed up the compilation.

• BSTONE_USE_STATIC_LINKING
  If enabled links modules statically to avoid dependency on system and custom libraries at run-time.

• BSTONE_USE_MULTI_PROCESS_COMPILATION
  Enables multi-process compilation if supported.

• BSTONE_MORE_COMPILER_WARNINGS
  Enables more compilation warnings.

• BSTONE_TESTS
  Builds and installs an application to test internal facility.
  Default value: OFF

• BSTONE_TRIM_FILE_PATHS_IN_EXE
  Makes file paths in the executable relative to the source code directory.
  Default value: OFF

• SDL2W_SDL2_DIR
  Defines directory with SDL2 CMake configuration file or with official SDL2 development Windows build.

• BSTONE_INTERNAL_SDL2
  Enables bundled SDL2 source code.
  Default value: OFF

Notes:

• Use ON value to enable option and value OFF to disable option.

10.1 - Generic instructions for Linux-based system or build environment (MinGW)

1. Install minimum required software described above.

2. Obtain source code and extract it (if necessary) into some directory. For our example we will use working directory ~/bstone-x.y.z.

3. Make directory ~/bstone-x.y.z/build current.

4. Generate Makefile.
   cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=~/bstone-x.y.z/build/install ..

5. Build and install: cmake --build . --target install

6. On success you will find executable and text files in the directory ~/bstone-x.y.z/build/install.

11 - Command-line options

• --version
  Outputs the port's version to standard output and into message box.

• --aog_sw
  Switches the port to "Blake Stone: Aliens Of Gold (shareware)" mode.
  If appropriate data files will not be found the port will fail.

• --aog
  Switches the port to "Blake Stone: Aliens Of Gold" mode.
  If appropriate data files will not be found the port will fail.

• --ps
  Switches the port to "Blake Stone: Planet Strike" mode.
  If appropriate data files will not be found the port will fail.

• --no_screens
  Skips start-up screens and the ending promo pages (AOG SW).

• --cheats
  Enables so called "debug mode" without much fuss.

• --data_dir dir
  Specifies a directory with game's resource files.
  Default: current working directory.

• --mod_dir dir
  Specifies a directory with mod's resource files.
  Default: undefined.

• --profile_dir dir
  Overrides default directory of the game's profile files.

• --log_sync
  Logs messages synchronously (slow, for debugging).

• --log_flush_every_message
  Flushes the log after each message (slow, for debugging).

• --vid_renderer value
  Select a renderer.
  Values:

  • auto_detect - tries to select the best renderer.
  • software - the vanilla renderer.
  • gl_2_0 - OpenGL 2.0 or higher.
  • gl_3_2_c - OpenGL 3.2 core or higher.
  • gles_2_0 - OpenGL ES 2.0 or higher.

  Default: auto_detect

• --vid_width width
  Specifies window width.
  Minimum width: 320
  Default width: 640

• --vid_height height
  Specifies window height.
  Minimum height: 240
  Default height: 480

• --vid_x offset
  Sets a horizontal offset from the left side of the desktop screen.
  Applicable for positionable window only.
  Default: 0

• --vid_y offset
  Sets a vertical offset from the top side of the desktop screen.
  Applicable for positionable window only.
  Default: 0

• --vid_is_positioned value
  Centers a window on the desktop or moves it in the specified position.
  Values: 0 (centered) or 1 (positioned)
  Default: 0

• --vid_is_vsync value
  Enables or disables vertical synchronization.
  Values: 0 (disable) or 1 (enable)
  Default: 1

• --vid_is_widescreen value
  Enables or disables widescreen rendering.
  Values: 0 (disable) or 1 (enable)
  Default: 1

• --vid_is_ui_stretched value
  Stretches the UI or keeps it at 4x3 ratio otherwise.
  Values: 0 (non-stretched) or 1 (stretched)
  Default: 0

• --vid_2d_texture_filter filter
  Sets texturing filter for UI.
  Applicable only for 3D-rendering.
  Values: nearest or linear
  Default: nearest

• --vid_3d_texture_image_filter filter
  Sets texturing image filter for the scene.
  Applicable only for 3D-rendering.
  Values: nearest or linear
  Default: nearest

• --vid_3d_texture_mipmap_filter filter
  Sets texturing mipmap filter for the scene.
  Applicable only for 3D-rendering.
  Values: nearest or linear
  Default: nearest

• --vid_3d_texture_anisotropy value
  Sets anisotropy degree for the scene.
  Value 1 or lower disables the filter.
  Applicable only for 3D-rendering.
  Values: [1..16]
  Default: 1

• --vid_texture_upscale_filter filter
  Sets texturing upscale filter.
  Applicable only for 3D-rendering.
  Values: none or xbrz
  Default: none
  WARNING xbrz is a high resource usage filter!

• --vid_texture_upscale_xbrz_degree degree
  Sets a degree of xBRZ texturing upscale.
  Applicable only for 3D-rendering.
  Values: [2..6]
  Default: 0

• --vid_aa_type value
  Sets an anti-aliasing mode.
  Applicable only for 3D-rendering.
  Values: none or msaa
  Default: none

• --vid_aa_degree value
  Sets a degree of the anti-aliasing.
  Applicable only for 3D-rendering.
  Values: [2..32]
  Default: 1

• --vid_filler_color_index value
  Sets a color for screen bars.
  Values: [0..255]
  Default: 0

• --vid_external_textures value
  Toggles external textures.
  Values: 0 (disable), 1 (enable).
  Default: 0

• --vid_check_r3_api_call_for_errors value
  Toggles checking every 3D API call for errors.
  Values: 0 (disable), 1 (enable).
  Default: 0

• --snd_is_disabled value
  Enables or disables audio subsystem.
  Values: 0 (disable) or 1 (enable)
  Default: 0

• --snd_rate sampling_rate
  Specifies sampling rate of mixer in hertz.
  Default: 44100
  Minimum: 11025

• --snd_mix_size duration
  Specifies mix data size in milliseconds.
  Default: 40
  Minimum: 20

• --snd_driver value
  Specifies the audio driver to use.
  Values: auto-detect, system (system default), openal (OpenAL)
  Default: auto-detect
  Auto-detect order: openal, system

• --snd_oal_library value
  Specifies OpenAL driver's name.
  Default: "" (OpenAL32.dll on Windows and libopenal.so on non-Windows system).

• --snd_oal_device_name value
  Specifies OpenAL device name.
  Default: ""

• --snd_sfx_type value
  Specifies SFX type.
  Values: adlib (AdLib) or pc_speaker (PC Speaker)
  Default: adlib

• --snd_is_sfx_digitized value
  Toggles SFX digitization.
  If enabled overrides AdLib / PC Speaker SFX audio chunk if such one is available in AUDIOT.* file.
  Values: 0 (disable) or 1 (enable)
  Default: 1

• --snd_opl3_type value
  Specifies OPL3 emulator type.
  Values: dbopl (DOSBox) or nuked (Nuked)
  Default: dbopl

• --calculate_hashes
  Calculates hashes (SHA-1) of all resource files and outputs them into the log.

• --extract_vga_palette dir
  Extracts VGA palette into existing directory dir.
  Supported file format: BMP

• --extract_walls dir
  Extracts graphics resources (wall, flooring, etc.) into existing directory dir.
  Supported file format: BMP

• --extract_sprites dir
  Extracts graphics resources (actors, decorations, etc.) into existing directory dir.
  Supported file format: BMP

• --extract_music dir
  Extracts music resources into existing directory dir.
  Supported file format: WAV
  Supported file format: data (unprocessed)

• --extract_sfx dir
  Extracts sfx resources into existing directory dir.
  Supported file format: WAV
  Supported file format: data (unprocessed)

• --extract_texts dir
  Extracts text resources into existing directory dir.
  Supported file format: TXT

• --extract_levels dir
  Extracts level resources into existing directory dir.
  Supported file format: FLR (MapEdit)

• --extract_all dir
  Extracts all resources (walls, sprites, etc.) into existing directory dir.

12 - Cheat key

J A M Enter
Press specified keys sequentially. Shows message "NOW you're jammin'!!", and gives to you all keys, all weapons and restores health to 100% but zeroes score points. Not available in shareware version.

13 - Debug keys

Add option --cheats to enable these keys.

• Backspace+A
  Toggles visibility of actors on auto-map.

• Backspace+C
  Shows counts of total static objects, in use static objects,
  doors, total actors, active actors.

• Backspace+D
  Toggles player's invisibility.

• Backspace+E
  Win mission instantly.

• Backspace+F
  Shows player's coordinates and direction.

• Backspace+G
  Toggles god mode.

• Backspace+H
  Hurt yourself by 1%.

• Backspace+I
  Each usage adds 99% health, 5 tokens, 50 ammo, one new weapon.

• Backspace+K
  Shows total counts of enemies, points and informants on the map.

• Backspace+M
  Memory information.

• Backspace+O
  Shows push walls on auto-map.

• Backspace+Q
  Instant quit.

• Backspace+R
  Shows full map.

• Backspace+S
  Slow motion.

• Backspace+U
  Unlocks all maps.

• Backspace+W
  Warps to specified map.

• Backspace+Shift/Caps Lock+W
  Warps to specified map but loads it from scratch rather from a saved game file or memory.

• Backspace+Home
  Selects previous ceiling texture.

• Backspace+Page Up
  Selects next ceiling texture.

• Backspace+End
  Selects previous flooring texture.

• Backspace+Page Down
  Selects next flooring texture.

• Backspace+-
  Decreases shading depth.

• Backspace+=
  Increases shading depth.

• Backspace+[
  Decreases shading drop off.

• Backspace+]
  Increases shading drop off.

• Backspace+l
  Dumps information into the log about remaining bonus items and enemies.

14 - Third party use

• SDL (Simple DirectMedia Library)
  See file src/lib/sdl/COPYING.txt for license information.

• DOSBox
  See file src/dosbox/COPYING for license information.
  Note: The port uses OPL emulation code only.

• OpenAL Soft
  See file src/lib/openal_soft/COPYING for license information.
  Note: The port uses public headers only.

• stb_image / stb_image_write
  See file src/lib/stb/LICENSE for license information.

• xBRZ
  See directory src/lib/xbrz for license information (License.txt) and essential changes made for the port (bstone_changelog.txt).

• Nuked OPL3
  See file src/lib/nuked_opl3/LICENSE for license information

15 - Credits

• id Software
  Wolfenstein 3D engine.

• JAM Productions
  The game itself.

• Apogee Entertainment, LLC
  Publishing the game and releasing a source code.

• Scott Smith
  Adaptation to Pandora console, various fixes.

• Filipe Tolhuizen
  Testing the port.

• Various contributors for providing fixies, ideas, etc.

16 - Links

16.1 - Essentials

• Home page
• Precompiled binaries and their source code

16.1 - General

• Blake Stone: Aliens Of Gold official site
• Blake Stone: Planet Strike official site
• Apogee's article about releasing of an original source code
• Original source code
• Repacked shareware Blake Stone: Aliens Of Gold (v3.0)

16.2 - Add-ons for Aliens Of Gold (full)

• Add-on BSE90 by ack
• Add-on GUYSTONE by Guy Brys
• Ling's Blake Stone Levels by Ling Yan Li

16.3 - Add-ons for Planet Strike

• Add-on BSE24 by ack
• Add-on GUYSTRIKE by Guy Brys
• Ling's Planet Strike Levels by Ling Yan Li