#Mayhem 2 - Raspberry Pi ##Martin O'Hanlon (martin@ohanlonweb.com) ##http://www.stuffaboutcode.com
##Description
Mayhem 2 is a multiplayer (2 - 4) flight shooter with a really simple objective - destroy your opponents before they destroy you.
Mayhem was originally released as Public Domain / Shareware on the Amiga. It was ported to the PC in 2002 by devpack and released onto github in 2011 github.com/devpack/mayhem.
Video of the original amiga game.
Martin O'Hanlon picked it up from code.google.com/p/mayhem (New BSD License) and with the help of Lee Taylor added new levels and features. Jonas Karlsson migrated Mayhem 2 to allegro 5.
Video of a new level in Mayhem 2
This is the Raspberry Pi port of the game, you can find the Windows PC fork at github.com/martinohanlon/mayhem.
##Gameplay
Destroy your opponents by shooting them, you win when all other players have run out of lives.
Your ship has limited fuel which will run down when you boost, if you run out you will be unable to control your ship, to refuel, land on any flat surface.
You can protect yourself from attack using your shields which will stop all bullets, be careful though your shields run down quickly and you wont be able to boost while your shields are on.
Powerups are dropped (sometimes) when a player is destroyed (by either crashing or being shot) and when collected will give you a temporary boost.
###Options
Levels 1-3 are the original game levels, all other levels are new to Mayhem 2.
DCA are anti spaceship guns which will fire at the player if they get too close.
Wall collision can be turned off for new players to get used to the controls and playing the game.
##Controls
###Joysticks
Default joystick controls, assume an "xbox / ps like" joystick:
| Control | Action |
|---|---|
| Stick 1 | Left / Right |
| Button 1 (A) | Thrust |
| Button 2 (B) | Shield |
| Button 6 (RB) | Fire |
Joystick controls can changed using the menu.
###Keys
If joysticks are connected, they are used as the players controls, if there are less than 4 joysticks connected, keys are used for the rest of the players in order:
| Key | Left | Right | Shield | Thrust | Fire |
|---|---|---|---|---|---|
| 1 | z | x | c | v | g |
| 2 | left | right | pad del | pad 0 | pad enter |
| 3 | b | n | , | m | l |
| 4 | y | u | o | i | 0 |
##Setup
Mayhem 2 needs at least 96MB of RAM dedicated to the GPU, you can set this using raspi-config
sudo raspi-config
Advanced Options > Memory Split > change value to 96
##Install
You will need to download the game and install libdumb1 dependency
sudo apt-get install libdumb1
git clone -b allegro5 https://github.com/martinohanlon/mayhem-pi
##Run
cd mayhem-pi
./start.sh
##Compile
Compiling Mayhem2 will need allegro 5 to be compiled and installed - this will take a while, particularly on a Pi 0/1.
cd mayhem-pi
./compile_allegro5
To compile Mayhem2.
make
To compile Mayhem2 to distribute, including static linking to the allegro libraries. Modify compile_allegro to include the additional flags, recompile and use Makefilestatic.
make clean
make -f Makefilestatic
To install Mayhem to the 'ports' section of RetroPie:
cd /home/pi/RetroPie/roms/ports
sudo apt-get install libdumb1
git clone -b allegro5 https://github.com/martinohanlon/mayhem-pi
##Version history
- beta - compiles, runs, ongoing mods
- 0.1 - added new levels and features
- 0.2 - seamless warping across map edges
- 0.4 - menu changes + new 'option' (powerup) changes
- 0.5 - timing and powerups are now dropped when players explode
- 0.6 - new thrust powerup + bug fix
- 0.7 - level structure changes
- 0.8 - joystick control
- 0.9 - new powerup icons
- 0.10 - screen resolution & perf improvements
- 0.11 - screen rendering, timing changes, bug fix
- 0.12 - allegro5 migration
##Contributors Anthony Prieur
Lee Taylor