What shall I learn next?

[firecracker]

Hi guys, I know how to move a square around in a program using key detection and I know how to set limits to where the square can move, but I'm trying to work towards a goal of creating a Role-playing game, I'm in a situation of which I don't know what to do next, can someone offer me help into what I should learn next, as I currently do not know, Thanks.

[Indloon]

Hi guys, I know how to move a square around in a program using key detection and I know how to set limits to where the square can move, but I'm trying to work towards a goal of creating a Role-playing game, I'm in a situation of which I don't know what to do next, can someone offer me help into what I should learn next, as I currently do not know, Thanks.

I suggest you making a realtime 2D clock in OpenGL :)