ELEC2645 (2019/20) / Mbed 2 deprecated ELEC2645_Project_mc18hal_v2

Helios Lyons 201239214

Dependencies:   mbed

Brief

My aim for this project was to create a FRDM K64F adapted version of the classic Space Invaders by Tomohiro Nishikado. The game itself has a number of clear features to implement;

  • Left to right movement for the player 'canon'
  • A fixed amount of player lives
  • Firing mechanics for both canon and invaders (hence collision systems)
  • Random firing from remaining invaders
  • Wave based combat

My own addition to these established ideas was Boss waves, featuring a single, larger sprite which fires at a faster interval than previous waves. The addition of a movement system using a basic for loop, as opposed to a velocity based system, will enhance the nostalgic feel of the game.

https://os.mbed.com/media/uploads/helioslyons/screenshot_2020-05-27_at_06.12.00.png

Gameplay

Movement is controlled with the joystick, moving the canon left or right. Fire by pressing A. Invaders spawn at set positions, but randomly fire at a set interval, which is higher for boss waves. Time is taken during each wave, and displayed at wave intervals, and if the play wins.

Controls are shown on the Gamepad below: (attribution: Craig A. Evans, ELEC2645 University of Leeds)

https://os.mbed.com/media/uploads/helioslyons/screenshot_2020-05-27_at_06.20.18.png

Canon/Canon.h

Committer:
helioslyons
Date:
2020-05-27
Revision:
11:1fd8fca23375
Parent:
10:19b250c7de5e

File content as of revision 11:1fd8fca23375:

#ifndef CANON_H
#define CANON_H
 
#include "mbed.h"
#include "N5110.h"
#include "Gamepad.h"

/** Canon.h
* @brief Defines variables and methods for the Canon.
* @author Helios A. Lyons
* @date April, 2020
*/
 
class Canon
{
public:
    /** Constructor */
    Canon();
    /** Destructor */
    ~Canon();
    
    /** Initialises variables
    * @param boolean for ownership, position (XY - int), and speed (int)
    */
    void init(int y);
    
    /** Draws contents to LCD
    * @param bitmap and position values (bit, int)
    */
    void draw(N5110 &lcd);
    
    /** Updates position
    * @param vector, position values (Vector2D, int), direction (char) and magnitude (float)
    */
    void update(Direction d,float mag);
     
    /** Gets current position
    * @return current position (Vector2D)
    */    
    Vector2D get_pos();
    
    /** Gets current lives
    * @return value for life (int)
    */   
    int get_life();
    
    /** Decrements current lives
    * @return decremented value of lives (int)
    */   
    int remove_life();
    
    /** Resets current lives
    * @return reset value of lives (int = 3)
    */  
    int reset_life();
    
    /** Returns canon width
    * @return width (int)
    */  
    int get_width();
    
    /** Returns canon height
    * @return height (int)
    */
    int get_height();
 
private:

    int _height;
    int _width;
    int _x;
    int _y;
    int _speed;
    int _life;
 
};
#endif