Enemies

So, I've finished fixing the problem that i had with the floors, and now I have moved onto making enemies. Later on, I will make enemies spawn at random (increasingly quicker), but for now I am just making an enemy in the top left corner of the screen and move to the right. I have created "gravity" for the enemy, but I am going to have to make it have a less downwards force so that it can make the gap between floors when it falls (as it won't be able to jump). After I have fixed that, i want to make it so that if the enemies x value is off the screen, it will appear on the opposite side (I will also do the same for my player).