File content as of revision 7:e0cab3e73df9:

///////// pre-processor directives ////////
#include "mbed.h"
#include "Gamepad.h"
#include "N5110.h"
#include "SpaceRebEngine.h"

#define SPACEINVADER_WIDTH 8
#define SPACEINVADER_HEIGHT 11
#define MISSILES_SIZE 2
#define MISSILES_SPEED 3

/////////////// structs /////////////////
struct UserInput {
    Direction d;
    float mag;
};
/////////////// objects ///////////////
N5110 lcd(PTC9,PTC0,PTC7,PTD2,PTD1,PTC11);
Gamepad pad;
SpaceRebEngine spacerebellion;

///////////// prototypes ///////////////
void init();
void update_game(UserInput input);
void render();
void welcome();
void Game1Over();
///////////// gloabal variable ////////////////
bool end = false;
float counter = 1.0;
int score = 0;
int speed = MISSILES_SPEED;
///////////// functions ////////////////
int main()
{
    start:
    end = false;
    int fps = 8;  // frames per second
    
    init();     // initialise and then display welcome screen...
    welcome();  // waiting for the user to start
    
    render();  // first draw the initial frame 
    wait(1.0f/fps);  // and wait for one frame period

    // game loop - read input, update the game state and render the display
    while (!end) {
        spacerebellion.read_input(pad);
        spacerebellion.update(pad);
        render();
        end = spacerebellion.game_end();
        wait(1.0f/fps);
        counter = counter + 1/8;
    }
    lcd.clear();
    Game1Over();
    goto start;
}

// initialies all classes and libraries
void init()
{
    // need to initialise LCD and Gamepad 
    lcd.init();
    pad.init();
     
    // initialise the game with correct ball and paddle sizes
    spacerebellion.init(SPACEINVADER_WIDTH,SPACEINVADER_HEIGHT,MISSILES_SIZE,MISSILES_SPEED);

}

// this function draws each frame on the LCD
void render()
{
    // clear screen, re-draw and refresh
    lcd.clear();  
    spacerebellion.draw(lcd);
    lcd.refresh();
}

// simple splash screen displayed on start-up
void welcome() {
    
    lcd.printString("    Space    ",0,1);
    lcd.printString("  Rebellion! ",0,2);
    lcd.printString("Press Start...",0,4);
    lcd.refresh();
     
    // wait flashing LEDs until start button is pressed 
    while ( pad.check_event(Gamepad::START_PRESSED) == false) {
        pad.leds_on();
        wait(0.1);
        pad.leds_off();
        wait(0.1);
    }
 
}

void Game1Over() {
    lcd.printString("   You died!    ",0,1);
    lcd.printString("  Score =",0,2);
    spacerebellion.print_scores(lcd);
    lcd.printString("Press BACK...",0,4);
    lcd.refresh();
    // wait flashing LEDs until start button is pressed 
    while ( pad.check_event(Gamepad::BACK_PRESSED) == false) {
        pad.leds_on();
        wait(0.1);
        pad.leds_off();
        wait(0.1);
    }
 
}