A simple one-level platform game. Developed as part of ELEC2645 at University of Leeds, spring 2015.

Dependencies:   N5110 PinDetect PowerControl mbed

An ARM mbed LPC1768 microcontroller have been used to develop a handheld arcade game in the style of an old-school platformer. This project is entirely my own independent work in all stages of the development; including design, defining project specifications, breadboard prototyping, schematic and PCB layout using CAD, assembly, testing and software development. Due to this being part of the ELEC2645 Embedded Systems Project module at University of Leeds, spring 2015, limitations were given on the available hardware components. Credit is due to the authors of the dependent libraries (N5110, Pin Detect, PowerControl and mbed). I would also like to thank the author of Game Programming Patterns as well as the authors of SFML Game Development for providing me with useful sources for programming design patterns.

/media/uploads/Siriagus/game_assembled.jpg

Project aims

  • Implement simple gameplay:
    • A single, fixed (no scrolling) level.
    • Player can move left to right, jump and shoot.
    • Enemies will drop from the top of the screen.
    • The player gets points for shooting enemies.
    • The player dies when it gets hits by an enemy.
  • Implement a simple menu system.
  • Enable the user to adjust the brightness of the display.
  • Output sound to enhance the user experience.

Software

The program flow is controlled by a finite state machine. The implemented design was inspired by the State design pattern from the books Game Programming Patterns and SFML Game Development. The StateManager class is responsible for updating and rendering the current selected state. It also changes the state based on request from the current state. The framework built for the state machine used in this project makes it easy to add new screens. The different main states (indicated by the background colour) and how the user interaction is shown below: /media/uploads/Siriagus/arcadegameuserinteraction.png

Hardware

Schematic:

/media/uploads/Siriagus/schematic.png

Printed circuit board (PCB):

/media/uploads/Siriagus/pcb.png

Images

A seperate program was written to convert images (png) to text-representation of the maps. Enemies and numbers on the screen are also collected from a sprite-sheet created in the same manner.

/media/uploads/Siriagus/unileeds3.png /media/uploads/Siriagus/newmap2.png

Changes

RevisionDateWhoCommit message
18:709ea375b0df 2015-05-11 Siriagus Fixed some formatting errors in documentation. default tip
17:d6a3b29cab31 2015-05-11 Siriagus Added sound effects ++
16:caf613d5b85e 2015-05-10 Siriagus Added wrapping (when entity goes outside the map, it enters on the other side).
15:d5eb13c4c1c6 2015-05-10 Siriagus Enemy - bullet collison + entities can walk upwards slopes or climb walls with a height smaller than themselves.
14:b4fed570abaf 2015-05-09 Siriagus Added function for generating random seed from two unconnected AnalogIn pins.
13:7ab71c7c311b 2015-05-09 Siriagus Expanded functionallity of drawImage - inverse, flipX, flipY. Collision test for all entities. Added simple enemy.
12:8178fad5e660 2015-05-08 Siriagus Added template drawImage function which can draw images of any dimension.
11:adb68da98262 2015-05-08 Siriagus Added collision test for player
10:f2488a0ecab7 2015-05-08 Siriagus Encapsluated PinDetect buttons in InputManager (made private)
9:da608ae65df9 2015-05-03 Siriagus Player movement + bullets added
8:9ac6a428fa26 2015-05-02 Siriagus Added Splash/Title Screen + Prototyping player movement
7:678873947b29 2015-05-01 Siriagus Fixed bug in State.h: Not setting fsm variable. State classes can now request the state to be changed.
6:edb48de563a9 2015-05-01 Siriagus Implemented MainMenu in new finite state machine. Implemented internal fsm in MainMenu.
5:100d960fc6d5 2015-05-01 Siriagus Mostly finished State and StateManager class. Some additional work must be done when adding new main states.
4:d6661b976359 2015-05-01 Siriagus Started rewriting the main finite state machine - design in progress
3:4e3f342a135c 2015-04-28 Siriagus More compact main menu FSM
2:0ae5ac8b0cac 2015-04-28 Siriagus More work on the menu system
1:0cfe2255092a 2015-04-28 Siriagus Simple Menu test - Uses PinDetect for debouncing.
0:1f92de30d43e 2015-04-26 Siriagus Added Joystick support.