Changed so that you and AI can't plant ship where existing ships are.  (small x axis bug)
Added checks and Working in Intelij Environment

+ AI and players shouldn't be able to place ships where old ships are
(small bug with x axis though)
Revert "Added checks and Working in Intelij Environment"

This reverts commit 271330ccb09a6d636523a1dd3b3a3ad9a9f1f2ae.