function hero.update(dt)




		if hero.y >= 0 then
	   		if love.keyboard.isDown("up") then
	   			hero.vy = 200
				hero.y = hero.y - (hero.vy*dt)
			end
		else
			hero.y = 0
		end

		if hero.x <= 556 then
			if love.keyboard.isDown("right") then
		   		hero.vx = 200
				hero.x = hero.x + (hero.vx*dt)
			end
		else
			hero.x = 556
		end

		if hero.y <= 559 then
			if love.keyboard.isDown("down") then
		   		hero.vy = 200
				hero.y = hero.y + (hero.vy*dt)
			end
		else
			hero.y = 559
		end

		if hero.x >= 0 then
			if love.keyboard.isDown("left") then
		   		hero.vx = 200
				hero.x = hero.x - (hero.vx*dt)
			end
		else
			hero.x = 0
		end

end