Slime has very basic attack (shoot one bullet)
some tweaks
change the spinning animation of UFO to linear
set stoppingDistance of NavMeshAgent to 0 to avoid deceleration
improve the handling of monster animation
Some adjustments to UFO
fix the orientation of the model of UFO
script is used to rotate the UFO instead of animation
UFO cannot attack yet
Merge branch 'master' of https://github.com/rpfypust/RealisticPerspective