Animations in PostScript, each frage on own page

laughingman.ps

%!PS-Adobe-3.0
%%BoundingBox 80 210 510 590
%%Title: (The Laughing Man logo)
%%Creator: (Marek Kubica <marek@xivilization.net>)
%%EndComments

% blue
/Fgcolor { [ 0 75 115 ] { 255 div } forall } def
% white
/Bgcolor { 1 1 1 } def

% code from PostScript language tutorial and cookbook, 1985
% page 167-170
/outsidecircletext
{
	circtextdict begin
		/radius exch def
		/centerangle exch def
		/ptsize exch def
		/str exch def
		/xradius radius ptsize 4 div add def

		gsave
		  centerangle str findhalfangle add rotate

		  str
		  {
			  /charcode exch def
			  ( ) dup 0 charcode put outsideplacechar
		  } forall
		grestore
	end
} def

/circtextdict 16 dict def
circtextdict begin
	/findhalfangle
	{
		stringwidth pop 2 div
		2 xradius mul pi mul div 360 mul
	} def

	/outsideplacechar
	{
		/char exch def
		/halfangle char findhalfangle def
		gsave
			halfangle neg rotate
			radius 0 translate
			-90 rotate
			char stringwidth pop 2 div neg 0 moveto
			char show
		grestore
		halfangle 2 mul neg rotate
	} def

	/pi 3.1415923 def
end
% end of the code from the blue book

% (angle -- )
/angletext
{
	/fontsize 28 def
	/Helvetica-Bold findfont fontsize scalefont setfont

	% the text to display
	(I thought what I'd do was, I'd pretend I was one of those deaf-mutes)
	fontsize
	% roll the angle to the top
	3 -1 roll
	% the radius of the circle
	140
	% draw it
	outsidecircletext
} def

% (radius line-width -- )
/filledcircle
{
	/width exch def
	/radius exch def

	newpath
	0 0 radius 0 360 arc
        0 0 radius width sub 0 360 arc
	eofill
} def

% ( -- )
/innercircle
{
	/radius 120 def
	0 0 radius 10 170 arc
	310 0 rlineto
	200 -5 26 90 270 arcn
	-93 0 rlineto
	0 0 radius 345 180 arcn
	stroke
} def

% ( -- )
/smile
{
	/radius 80 def
	/offset 22 def
	0 0 radius 180 offset add 360 offset sub arc
	closepath
	stroke
} def

% ( -- )
/smileeye
{
	/startx 0 def
	/starty 0 def
	/endx 30 def
	/endy 0 def

	/midx startx endx add 2 div def

	0 0 moveto
	startx starty midx 30 endx endy curveto
	endx endy midx 15 startx starty curveto
	closepath
	fill
} def

% ( -- )
/block
{
	0 126 moveto
	0 10 rlineto
	stroke
} def

% ( -- )
/whiteout
{
	gsave
		Bgcolor setrgbcolor
		110 -25 100 40 rectfill
	grestore
} def

% ( angle -- )
/angleman
{
	Fgcolor setrgbcolor
	% consumes the angle parameter
	angletext
	180 11 filledcircle
	whiteout
	gsave
		20 setlinewidth
		innercircle
		block
		smile
	grestore

	gsave
		-60 -13 translate
		1.5 1.5 scale
		smileeye
		50 0 translate
		smileeye
	grestore
} def

/laughingman
{
	270 400 translate
	0 0 moveto
	315 angleman
} def

/rotatingman
{
	[ 360 -1 1 { 315 add 360 mod } for ]
	{
		270 400 translate
		0 0 moveto
		angleman
		showpage
	} forall
} def

%laughingman
rotatingman