Projects

Participants	Control-k, Maijin, Realitygaps, Wizzup
Skills	Programming
Status	Active
Niche	Software
Purpose	Fun

Arcade Machine v2

As part of the old system being very janky and old, some of us have decided to rework it.

The old machine is kept around and backed up, and we are moving to a "newer" but still old machine, with a newer operating system: Batocera. The goal is to have a cleaner system: for context, the current disk has 2013 gentoo files, and nobody that I (x) asked knew about it.

Things that are worth noting: - The power button is exposed as two male dupont pins, we had to make a janky cable with two female dupont connectors on each side, and poke inside the computer with a screwdriver to find the power button pins. - The input for BOTH controllers is shown as a single USB keyboard: the JAMMA board inside has a jumper for USB and PS2. The older system used custom written software: uinput-mapper. For this iteration, I asked around in Batocera community and will try their recommendations.

Old Text

We own an Arcade Machine, of which we have replaced the contents with an Intel PC, running Linux. It has a custom game launcher and support for many emulators, such as MAME, UAE and other emulators.

Current Installed Programs

Games

How to install more systems

ssh techinc@10.209.10.44
cd RetroPie-Setup
sudo ./retropie_setup.sh
Manage packages (opt/exp etc. see retropie website) ; select and install

How to install more games/roms

ssh techinc@10.209.10.44
Put your rom uncompressed in /home/techinc/RetroPie/roms/SYSTEMNAME (check the content of roms to choose the correct folder)

Native

And Yet It Moves
Aquaria
Bastion from SupergiantGames
beathazard
bit.trip.runner
cave_story_plus-linux-r100
hedgewars
HELI-X42
jamestown
luftrausers
mari0-linux
NightSky
Nothing To Hide
nottetris2
OpenHexagon1.92
openinvaders
OpenSyobonAction
Raptor: Call of the Shadows
Rotational_Linux_RC2
Spirits
stepmania-5.0
Super Hexagon
Superbrothers: Sword & Sworcery EP
SuperMeatBoy
super_mario_war
Thomas Was Alone
To The To The Moon
torus-trooper
Trine
Trine2
World Of Goo
ZenBound2

Emulation

N64

Zelda - Ocarina of Time.z64
m64py

Amiga

PiNBALL FANTASIES
jumpnbump
AMIGA ROM Packages
PROJECTX
Stargoose Warrior

DOS

Epic Pinball
ScummVM Games Collection
One Must Fall 2097
Wacky_Wheels
PARATROO.COM
SkyRoads

MAME

MAME Roms Packages

System

dosbox
git
MAME
MAME 0114b
MAME32 plus 0.83
PlayOnLinux
powerbars - https://github.com/MerlijnWajer/powerbars
pygame
ssh server
uinput-mapper
Unity3D
vim
wahcade
Wine
xfce4
./git/Arcade - https://github.com/jorants/Arcade
./arcade

Plan / Wishlist

Get Windex or something to clean the outside case of the device
Clean up the inside of the machine, bundle cables.
Create a quick bootstraper script so we can deploy/reinstall the machine
Deploy RetroPie ?
Get wireless keyboard/mouse, maybe those mini-keyboard with the trackpad?
Fix a light inside of the cabinet

Get external USB controllers. (Wizzup bought two SNES USB ones and will donate them -- they are currently being shipped)
New and more physical input buttons
Make the uinput-software much more user friendly
Look at the test and volume controls inside of the cabinet
Improve the launcher and uinput-mapper stuff
Improve the game launcher
Add more games (only when they work nicely / well), perhaps we can have a "tested games" launcher and an advanced mode.
(Re)Paint the cabinet.
USB/HID controls vs. input-mapper - Wizzup and Justa have to fight that one out...
have it make coffee (hack a saeco inside for no reason)
strip the PC and mount it inside - reduce clutter while busy
investigate less heat production / better ventilation
We can use it to control a variety of stuff. (light, sound)
We can hook other consoles into it.
Some kind of game that integrates with the space? interacts with some light / stuff around the arcade machine

Modifications

First step of redesign control board

- Added two fixed wheels and two swivel-wheels under the base -- To be able to move the thing around

- Added a hole that runs from the 'cabinet' part into the 'base' part -- Since I had the console removed already, it seemed smart to make some kind of hole in the base AND the cabinet that'd allow running a cable through for lighting/whatever.

- Drilled a hole on the underside of the 'button-table' to let USB cables through -- To start getting rid of the 'kabel-salat' that plagues the arcade-machine, I moved the USB-hub from the 'coin-door' to a location inside of the cabinet; allowing the keyboard + pad to be connected a little more tidily. Also in preparation for other (suggested) changes

- Removed all the blue tape holding the access-hatch closed; replaced it (for now) with a single screw -- This is not permanent; but the use of blue tape all over the place was not making things look nice. The screw is just a kludge. There is a mechanism on the back of the access-panel that we could re-use, if I could figure out how it was supposed to work. Simply making a spring-loaded latch there would work fine too.

Details

The cabinet we have is a 'generic' model designed to be able to run a number of games, originally.

We stuck a PC in there and replaced the CRT with an LCD. The controls connect to the PC via a 'JPAC' module from Ultimarc; connected to the PC via PS/2 There are a number of USB-cables running from the PC to other devices. Including the keyboard + Touch-pad that are currently 'seated' at the top of the cabinet.

The PC runs Linux. It autoboots into an AWESOME desktop that has a full-screen 'program selection' window open which was programmed by Wizzup and Control-K as a way to easily be able to select the game/program/function you'd like to use.

The cabinet has the following controls

- A coin-return; now used for 'on/off' (wired to 'ATX poweron' i believe) - Player 2 start (on front edge) - Player 1 joystick - Player 1 button 1 - Player 1 button 2 - Player 2 start (on front edge) - Player 2 joystick - Player 2 button 1 - Player 2 button 2

The cabinet has a light-switch on the back to power on/off the light that illuminates the logo at the top.

The cabinet has two speakers. Not clear if volume is wired up via volume-control button on the inside of the cabinet.

The cabinet is designed to be used either in 'seated' mode or, in it's current configuration, when standing. To make this possible, the cabinet is constructed out of two sections. A main section housing all the electronics, etc, and a 'pedestal' at the bottom that can be separated from the rest by removing two bolts. This raises the height of the entire machine about 40cm's or so.

Video

We replaced the built-in monitor with a TFT monitor. (TODO: Resolution?)

Sound

The sound works and is connected to the computer as well. (TODO: Document how)

Power button

The button next to the coin slit is now (also) a power button.

Input

We have written our own Game Launcher frontend and software to do advanced input remapping.

Arcade Machine input

The input can be read as PS2 (and USB); using a chip that we got alongside the Arcade Machine:

http://www.ultimarc.com/jpac.html http://www.ultimarc.com/jpac2.html

The Arcade Machine input exposes itself as a single keyboard over USB and PS/2. This is problematic for most games, with the exception of MAME and a few emulators. Some games expect an input device per player, so one "keyboard" then simply is not enough.

To solve this problem we have written software that can split one keyboard up into multiple virtual ones: https://github.com/MerlijnWajer/uinput-mapper ; http://hetgrotebos.org/wiki/uinput-mapper

Old Old text

Common tasks

There are a few simple tasks until we've written a pretty interface + set of scritps.

It mostly boils down to two tasks:

1) disable/enable the "keyboard" interface in X (to avoid double input):

 ~/disable_*.sh or ~/enable_*.sh

2) start/stop uinput-mapper with the right configuration:

 sudo input-read -D /dev/input/by-id/usb-Cypress_I-PAC_Arcade_Control_Interface-event-kbd | sudo input-create configs/techinc.py

And just hit ^C to stop it.

Writing our own input driver

Axes to axes, Buttons to buttons

Code: https://github.com/MerlijnWajer/uinput-mapper

For instructions, see: http://hetgrotebos.org/wiki/uinput-mapper

And the techinc.py config can be viewed online:

http://googleco.de/uinput-mapper/tree/configs/techinc.py

Map:

Creates two joystick input devices in /dev/input
Both joystick devices are mapped sanely.
HAT0X / HAT0Y seem to work now that we specified absmin and absmax.

Keys are mapped like this:

 HAT -> HAT0X, HAT0Y
 Red Buttons, left to right: BTN_0, BTN_1, BTN_2
 Yellow Button: BTN_3

User Interface

Using the menu

There is a custom menu for the arcade machine, it should start automaticly. You can use the left joystick to choose a game/program. Press the most right button of player 1 to start it. For games that are not added yet, xterm is also in the menu.

Restarting the menu

If the menu is closed and you want to start it, the python script is in "/home/techinc/arcade/game.py", run it using python2.

Adding programs

You can use the supllied GUI in the menu, it will ask some questions. You can either choose a file to run or insert a custom command Then it asks for a name and descition Finaly, you will need a picture, you can use the standart questionmark, insert a file or taka a screenshot. When you take a screenshot, the command will be executed (so make sure it is alright) and after some seconds scrot is used to take a picture.

You can also edit the ~/arcade/gamelist.conf file for more flexebilety.

Removeing a program can be done by pressing [DEL] in the main menu while you have the program selected.

Fixing a broken menu

Sometimes things go wrong when adding games, specifecly while adding a screenshot, this can make the menu crash. You can fix it by removing the broken entry from ~/arcade/gamelist.conf manualy.

Arcade Machine

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