File content as of revision 3:2f4a7787beb3:

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

Engine::Engine(){}
Engine::~Engine(){}

void Engine::init(int paddle_width,int paddle_height,int ball_size,int speed)
{
    // initialise the game parameters
    width = paddle_width;
    height = paddle_height;
    //_ball_size = ball_size;
    _speed = speed;
    x = GAP;
    _cup.init(x,height,width);
    _ball.init(_speed);
}

void Engine::read_input(Gamepad &pad)
{
    _d = pad.get_direction();
    _mag = pad.get_mag();
}

void Engine::draw(N5110 &lcd)
{
    _ball.draw(lcd);
    _cup.draw(lcd);
}

void Engine::update(Gamepad &pad)
{
    _cup.update(_d,_mag);
    _ball.update();
    check_wall_collision(pad);
    check_paddle_collisions(pad);
}
void Engine::check_wall_collision(Gamepad &pad)
{
    // read current ball attributes
    Vector2D ball_pos = _ball.get_pos();
    Vector2D ball_velocity = _ball.get_velocity();

    // check if hit top wall
    if (ball_pos.y <= 1) {  //  1 due to 1 pixel boundary
        ball_pos.y = 1;  // bounce off ceiling without going off screen
        ball_velocity.y = -ball_velocity.y;
        // audio feedback
        pad.tone(750.0,0.1);
    }
    // check if hit bottom wall
    else if (ball_pos.y + 10 >= (HEIGHT-1) ) { // bottom pixel is 47
        // hit bottom
        ball_pos.y = (HEIGHT-1) - 10;  // stops ball going off screen
        ball_velocity.y = -ball_velocity.y;
        // audio feedback
        pad.tone(750.0,0.1);
    }

    // update ball parameters
    _ball.set_velocity(ball_velocity);
    _ball.set_pos(ball_pos);
}
void Engine::check_paddle_collisions(Gamepad &pad)
{
    Vector2D ball_pos = _ball.get_pos();
    Vector2D p_pos = _cup.get_pos();
    
    if (ball_pos.x == p_pos.x )
    {
        collisionX=true;
    }
    else
    {
        collisionX=false;
    }
    
    if (ball_pos.y +10 == p_pos.y )
    {
        collisionY=true;
    }
    else
    {
        collisionY=false;
    }
        
    if (collisionX && collisionY)
    {
        pad.leds_on();
        wait_ms(100);
        pad.leds_off();
        }
}