<s>
Chipmunk2D	O
is	O
a	O
2-dimensional	O
real-time	B-General_Concept
rigid	O
body	O
physics	O
engine	O
written	O
by	O
Scott	O
Lembcke	O
that	O
is	O
designed	O
to	O
be	O
portable	O
,	O
lightweight	O
,	O
fast	O
,	O
and	O
easy	O
to	O
use	O
.	O
</s>
<s>
Chipmunk2D	O
Free	O
was	O
written	O
purely	O
in	O
C99	B-Language
,	O
and	O
freely	O
available	O
under	O
the	O
terms	O
of	O
the	B-License
MIT	I-License
License	I-License
.	O
</s>
<s>
It	O
included	O
several	O
high-level	O
subroutines	O
in	O
Objective-C	B-Language
,	O
and	O
floating-point	O
optimizations	O
for	O
the	O
ARM	B-Architecture
processor	I-Architecture
.	O
</s>
<s>
Aside	O
from	O
Objective-C	B-Language
,	O
there	O
are	O
official	O
bindings	O
for	O
Ruby	B-Language
,	O
and	O
third	O
party	O
interfaces	O
exist	O
for	O
Python	B-Language
,	O
Haskell	B-Language
,	O
OCaml	B-Language
,	O
and	O
others	O
.	O
</s>
<s>
Chipmunk	B-Application
is	O
endorsed	O
by	O
a	O
number	O
of	O
game	O
libraries	O
,	O
including	O
,	O
Gosu	O
,	O
and	O
Cocos2d	B-Application
.	O
</s>
<s>
Chipmunk	B-Application
supports	O
multiple	O
collision	O
primitives	O
attached	O
to	O
one	O
rigid	O
body	O
,	O
and	O
bodies	O
may	O
be	O
joined	O
by	O
constraints	O
.	O
</s>
<s>
This	O
feature	O
is	O
currently	O
only	O
available	O
in	O
the	O
Objective-C	B-Language
version	O
of	O
the	O
library	O
.	O
</s>
<s>
Chipmunk	B-Application
has	O
been	O
widely	O
used	O
on	O
the	O
iPhone	B-Device
,	O
Mac/Windows/Linux	O
,	O
and	O
other	O
platforms	O
,	O
including	O
Nintendo	B-Operating_System
Wii	I-Operating_System
and	O
Sony	B-Operating_System
PSP	I-Operating_System
.	O
</s>
