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Sleepyhollow Eigenwalker
on 1 Dec 2023
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For reference:
Sleepyhollow is a fictional town where "the headless horseman" story took place. The horseman had lost his head in the revolutionary war and now terrorizes the town looking for his lost head. Modern media often depicts the horseman as having a pumpkin replacement head.
Code:
I compressed array V into a character array, saving about 581 chars
Added treadmill, colors, hands, feet, and a pumpkin head.
todo: The treadmill runs a little too fast.
function drawframe(f)
% EIGENWALKER Human gait
% Cleve's Corner, http://blogs.mathworks.com/cleve/2016/04/11.
period = 151.5751;
omega = 2*pi/period;
fps = 48;
dt = 2*pi/omega/fps;
scale = 0.1;
t = (f-1)*dt;
c = scale*[1 sin(omega*t) cos(omega*t) sin(2*omega*t) cos(2*omega*t)]';
% Old coefficients: 849 chars
% New compressed as string: 268 chars
V=reshape(rescale('ᇲ≔⊍ἝᇚҫĹǞᘬᠹᥐሑૢୋᎊᗢᅰᄀႀఴᔳඔᢾᆓኇᅲᢇൺ耀伢彀獢燘珮徬侲ᦼ㊴傽垧傭㋻ᦾᆐህဲᅕᅉᅇᆟቔᇾᅓᅨᅑላቤᇒয়ഖႰᇚጃᝨᬿ⎆ᯔᇔᇔᇔࠊ0ᇪၧቤᆿᇪሓᅤᎰჴᏥᇐᇪሃያၵოၡႈႈၾၑ႒ያኑჁᄂႿቿዧᇠႆᅾᇠቂፂᏭፂᆭᇨራႄᚒᇨᇒቂሕᇨᆹᆙላᙄቌᆩᇪሩᅾඌᇨᇾሡᇦᇬᇰᆯᇁᇨᇢᇪᇪᇪᇬᇨᆝሳᇒᅴᅪᅬᇐሱᒂቐჾჾჼቚᒯቷዥኃቿኇኑዚᄒዣቷቷቷዥჼᇪሸሇᇮᇪᇢᆿᆄሇቈᇤᇨᇦᆈᆿሟᇺላሩሯርሉᇨ࿙ᐂኋቱᐆ࿀ኗᇴበንንቌᆹᐆሥናኙኗሯᐌ'-'0',-2227,13837),45,5);
X = reshape(V*c,15,3);
L = {[1 5],[5 12],[2 3 4 5 6 7 8],[9 10 11 12 13 14 15]};
C = {'#ff7518' "#000" "#000" "#6E260E"};
M = {'none' 'none' 'h' '^'};
W = [4 10 4 6];
p = zeros(4,1);
cla reset
set(gca,'position',[0 0 1 1],'clipping','off')
daspect([1 1 1])
axis([-750 750 -750 750 0 1550])
xticks([]);
zticks([]);
% Make a treadmill like thing for him to walk on
span=750*2;
offset=f/48*span;
yticks(linspace(-750-span-offset,750+span-offset,10));
yticklabels([]);
for k = 1:4
p(k) = line(X(L{k},1),X(L{k},2),X(L{k},3), ...
'color',C{k},'markerfacecolor',C{k},...
'markeredgecolor','none',...
'marker',M{k},'markersize',12, ...
'markerindices',[1 numel(L{k})],...
'linestyle','-','linewidth',W(k));
end
XH = [X(1,:); X(5,:)];
set(p(1),'xdata',XH(:,1),'ydata',XH(:,2),'zdata',XH(:,3))
% give him a pumpkin head (from minihack in previous year)
px=hgtransform('Matrix',makehgtform('translate',X(1,:),'scale',180));
[X,Y,Z]=sphere(200);
R=1+(-(1-mod(0:.1:20,2)).^2)/20;
surface(px,R.*X,R.*Y,(.8+(0-(1:-.01:-1)'.^4)*.2).*Z.*R,'FaceC','#ff7518','EdgeC','n')
surface(px,X/12,Y/12,Z/2+.6,'FaceC', '#008000', 'EdgeC','n')
material([ .6, .9, .3, 2, .5 ])
box on
grid on
view(160,10)
camlight
end