player1_x = 400
player1_y = 500
paddle_width = 100
paddle_height = 15

ball_speed_x = 50
ball_speed_y = -100
ball_x = 400
ball_y = 300

function love.draw()
	 -- Draw Player 1 Paddle
	 love.graphics.setColor(255,255,255)
	 love.graphics.rectangle("fill", player1_x, player1_y, paddle_width, paddle_height)

	 -- Add Player 2 Paddle Below

	 -- Draw the ball
	 love.graphics.setColor(255,255,255)
	 love.graphics.circle("fill", ball_x, ball_y, 15, 15)
end

function love.keypressed(key, unicode)
	 -- player 1 movement
	 if key == 'a' then
	    player1_x = player1_x - 10
	 end
	 if key == 'd' then
	    player1_x = player1_x + 10
	 end
	 
	 -- exit the game
	 if key == 'escape' or key == 'q' then
	    love.event.quit()
	 end
end

function love.update(dt)
	 -- ball location update
	 ball_x = ball_x + ball_speed_x * dt
	 ball_y = ball_y + ball_speed_y * dt

	 -- collision detection
	 if ball_y - 15 <= 0 and ball_speed_y < 0 then		 -- ceiling
	    ball_speed_y = -1 * ball_speed_y
	 elseif ball_y + 15 >= 600 and ball_speed_y > 0 then	 -- floor
	    love.event.quit()
	 elseif ball_x - 15 <= 0 and ball_speed_x < 0 then	 -- left wall
	    ball_speed_x = -1 * ball_speed_x	   
	 elseif ball_x + 15 >= 800 and ball_speed_x > 0 then	 -- right wall
	    ball_speed_x = -1 * ball_speed_x
	 end

	 -- Can we change it to hit the paddle as well? Add that code here.
end