0.0000005  	alpha		transformation gliding <---> rolling (-> spin)
0.001		beta		friction that decreases z-spin
0.2		gamma		decrease of Spin when ball hits a side
0.0000004     delta		rolling- / gliding-friction
0.35     	eta		1-loss of spin by transf. from spin -> speed
0.4		bandes		intersection z-spin <--> sides --> speed
0.9		banderef 	decrease of speed when hitting a side
0.75		bandez		bandes<bandez<1 !; decr. of z-spin at sides
1.0		mass_white	mass of the white ball (others: 1.0)
30		step		painting new after 'step' calculations steps
6		clev 		"level" of computer-op., (deepness of combies)
3.75		curves		how strong "breaks" ball (perp.) out,(p.c.-b.)
3.75		curvep		h.s.b.b. (parallel.) out,(playing curve-balls)
10		time_step	milli-seconds
0		fps		show fps = 1 
1		sfx		play sfx = 1
