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.

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)

#ifndef ARMY_H
#define ARMY_H

#include <vector>

#include "mbed.h"
#include "N5110.h"
#include "Gamepad.h"

#include "Invader.h"

/** Army.h
* @brief Defines variables and methods for the invader army, instatiates invaders
* @author Helios A. Lyons
* @date April, 2020
*/
 
class Army
{
    
public:
    /** Constructor */
    Army();
    /** Destructor */
    ~Army();
    
    /** Initialises variables
    * @param value for invader vector (int), speed (int), boss (bool), and boss number (int)
    */
    void create_army(int rows, int columns, int speed, bool boss, int bossNum);
    
    //void move_army();
    
    /** Draws contents to LCD
    * @param bitmap and position values (bit, int)
    */
    void draw(N5110 &lcd);
    
    int _rows; // passed from main to Army to define the size of the invader vector
    int _columns;
    
    /** Returns end condition
    * @return returns end condition (boolean) and passes to battle.h
    */
    bool end();
    bool _end;
 
private:
    
    int _x;
    int _y;
    bool _boss;
    int _inc;
    
};
#endif