Background
Over the last few days I couldn't update anything project code, today only I could work on top of the game and gave continuity to the point that I had started last week.
The skulls are being generated by the type Tower crypt and positioned himself at their posts when the tower is ready for battle.
Workflow
After completing the events of positioning the skulls according to its index, I started working in animation (moving/attacking) according to the event of an enemy have been selected (or not).
The next step was to make the skulls objects that are reborn after a cycle, the current process does a background check to find out if one of the positions is vacant (remembering are 3 skulls simultaneously), if one of them is empty after a period of time, a new skull is reborn and goes to his guard post.
Now that the cycle is almost ready, I must return to the 3D and finished model weapons/shields that the skulls will use.