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

Committer:
Siriagus
Date:
Fri May 01 09:10:23 2015 +0000
Revision:
5:100d960fc6d5
Parent:
4:d6661b976359
Child:
7:678873947b29
Mostly finished State and StateManager class. Some additional work must be done when adding new main states.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Siriagus 1:0cfe2255092a 1 #ifndef STATE_H
Siriagus 1:0cfe2255092a 2 #define STATE_H
Siriagus 1:0cfe2255092a 3
Siriagus 4:d6661b976359 4 #include "N5110.h"
Siriagus 4:d6661b976359 5 #include "PinDetect.h"
Siriagus 4:d6661b976359 6 #include "InputManager.h"
Siriagus 4:d6661b976359 7
Siriagus 4:d6661b976359 8 class StateManager;
Siriagus 4:d6661b976359 9
Siriagus 4:d6661b976359 10 // List of main states in the game
Siriagus 4:d6661b976359 11 enum MainState {MAIN_MENU, GAME, SUBMIT_HIGHSCORE, GAME_OVER};
Siriagus 4:d6661b976359 12
Siriagus 4:d6661b976359 13 // Each main state is a derived from the State class.
Siriagus 5:100d960fc6d5 14
Siriagus 1:0cfe2255092a 15 class State
Siriagus 5:100d960fc6d5 16 {
Siriagus 1:0cfe2255092a 17 public:
Siriagus 4:d6661b976359 18
Siriagus 4:d6661b976359 19 State(StateManager* fsm, N5110 *lcd, InputManager* input)
Siriagus 5:100d960fc6d5 20 :lcd(lcd), input(input){}
Siriagus 4:d6661b976359 21
Siriagus 5:100d960fc6d5 22 virtual void update(time_t dt) = 0;
Siriagus 4:d6661b976359 23 virtual void render() = 0;
Siriagus 4:d6661b976359 24
Siriagus 4:d6661b976359 25 private:
Siriagus 4:d6661b976359 26 void changeState(MainState newState);
Siriagus 4:d6661b976359 27
Siriagus 4:d6661b976359 28 protected:
Siriagus 4:d6661b976359 29 N5110 *lcd;
Siriagus 4:d6661b976359 30 InputManager *input;
Siriagus 4:d6661b976359 31
Siriagus 4:d6661b976359 32 private:
Siriagus 4:d6661b976359 33 StateManager *fsm;
Siriagus 4:d6661b976359 34
Siriagus 1:0cfe2255092a 35 };
Siriagus 1:0cfe2255092a 36
Siriagus 5:100d960fc6d5 37
Siriagus 5:100d960fc6d5 38
Siriagus 1:0cfe2255092a 39 #endif