I roamed around the map a bit, finding stuff. The control is smooth and fog of war works great.
And yet I still don't know how to gain more mana...
I see ! Thank you for playing (~^w^)~ The fog of war was probably the most time consuming thing to code so I'm glad it's working properly ("^w^)
The only way to gather mana right now it's to select the wisps and right click on the "mana nodes" (the weird white an blue things on the ground. Once they are next to them they should be generating mana.