added a possibility to make different spawn patterns
changed the way of tracking if a new bobbel has to be generated
changed calculation of loop number
added a sawing tooth spawner
added triangle function
added some documentation
added a change of orientation in the triangle function
combined the linear functions
added an oscilator function
made some variables to function arguments
added the possibility for a spawn function to set multiple boobels at the same time
the random spawn function now returns sometimes multiple bobbels
changed score counting to add a point for every bobbel hit
removed total_time variable
Merge branch 'bobbelpatterns'

Conflicts:
	game.lua