First monster spritesheet!
Added animation class. Untested.
More stuff to animation.
Sprite handles timing, animation keeps frames.
Changing everythin to use new sprite mode. Incomplete.
[animationset] Added viking animation set.
I hope I'm getting somewhere.
Movement and attack work, but slash fails.
Slash almost back.
Multiple slashes don't conflict, but...

Enemy's slash is weird O.o
Everything seems to be back to normal.
No need to clone animations anymore.
Extracted constant part of sprite to spritedata.
Walk animation speed follows move speed.
Acceleration adjustments.
MONSTER!
Adjustment to monster's sprite.
Slash hitbox adjusts itself by its size.
Monster randomly jumps.
BEWARE OF THE MONSTER