tjger - the java game & entertainment rt Code (Desktop)

Improve computer player, setting barrier.

Improve computer player. Missing:
- do not put barrier if (only) player is blocked
- and also not if the way to the most front (if opponent) is blocked
- Sounds depending on the theme

Improve computer player.

Improve computer opponent.

Improve computer opponent.

Fix due to changes in tjger SimpleStatusBar.

Add a state to check whether a game was stopped and allow to inherit from the class that is used for calculate the shortest way for a playing field.

Add new barriercanditates fields and fix the problem that a field can be reached in different ways where one way can have barriers.

Removed a validation rule for barrier move (because of game state changing) and use the drawPart method for drawing barriers on the field.

Extended playing field drawing utilities to work better for parts (because of automated animation).