Improved Tile Rendering

Signed-off-by: gigimoi <gassmann.gavin@gmail.com>
Zombies no longer select a disabled node as thier start or end goal

Signed-off-by: gigimoi <gassmann.gavin@gmail.com>
Lever now pays attention to its info and so do nodes

Signed-off-by: gigimoi <gassmann.gavin@gmail.com>