<s>
Script	B-Application
Creation	I-Application
Utility	I-Application
for	I-Application
Maniac	I-Application
Mansion	I-Application
(	O
SCUMM	B-Application
)	O
is	O
a	O
video	O
game	O
engine	O
developed	O
at	O
Lucasfilm	O
Games	O
,	O
later	O
renamed	O
LucasArts	O
,	O
to	O
ease	O
development	O
on	O
their	O
graphic	O
adventure	O
game	O
Maniac	B-Application
Mansion	I-Application
(	O
1987	O
)	O
.	O
</s>
<s>
It	O
was	O
subsequently	O
used	O
as	O
the	O
engine	O
for	O
later	O
LucasArts	B-Application
adventure	I-Application
games	I-Application
.	O
</s>
<s>
This	O
also	O
allowed	O
the	O
game	O
's	O
script	O
and	O
data	O
files	O
to	O
be	O
cross-platform	B-Operating_System
,	O
i.e.	O
,	O
re-used	O
across	O
various	O
platforms	B-Device
.	O
</s>
<s>
SCUMM	B-Application
is	O
also	O
a	O
host	O
for	O
embedded	O
game	O
engines	O
such	O
as	O
the	O
Interactive	O
MUsic	O
Streaming	O
Engine	O
(	O
iMUSE	B-Application
)	O
,	O
the	O
INteractive	O
Streaming	O
ANimation	O
Engine	O
(	O
INSANE	B-Application
)	O
,	O
CYST	O
(	O
in-game	O
animation	O
engine	O
)	O
,	O
FLEM	O
(	O
places	O
and	O
names	O
object	O
inside	O
a	O
room	O
)	O
,	O
and	O
MMUCAS	O
.	O
</s>
<s>
SCUMM	B-Application
has	O
been	O
released	O
on	O
these	O
platforms	B-Device
:	O
3DO	B-Device
,	O
Amiga	B-Device
,	O
Apple	B-Device
II	I-Device
,	O
Atari	B-Device
ST	I-Device
,	O
CDTV	B-Device
,	O
Commodore	O
64	O
,	O
Fujitsu	B-Device
FM	I-Device
Towns	I-Device
&	O
Marty	B-Device
,	O
Apple	O
Macintosh	B-Device
,	O
Nintendo	O
Entertainment	O
System	O
,	O
DOS	B-Device
,	O
Microsoft	B-Application
Windows	I-Application
,	O
Sega	B-Device
CD	I-Device
(	O
Mega-CD	B-Device
)	O
,	O
and	O
TurboGrafx-16/PC	O
Engine	O
.	O
</s>
<s>
UnXman	O
)	O
in	O
1987	O
,	O
with	O
later	O
versions	O
enhanced	O
by	O
Aric	O
Wilmunder	O
(	O
a.k.a.	O
,	O
the	O
SCUMM	B-Application
Lord	O
)	O
and	O
Brad	O
P	O
.	O
Taylor	O
.	O
</s>
<s>
The	O
nature	O
of	O
SCUMM	B-Application
emerged	O
from	O
the	O
background	O
of	O
most	O
of	O
the	O
early	O
programmers	O
at	O
LucasArts	O
,	O
including	O
Wilmunder	O
,	O
who	O
had	O
been	O
programmers	O
for	O
minicomputers	B-Architecture
and	O
Unix	B-Application
workstations	O
.	O
</s>
<s>
This	O
concept	O
informed	O
the	O
idea	O
of	O
a	O
scripting	O
language	O
that	O
would	O
be	O
cross-platform	B-Operating_System
.	O
</s>
<s>
SCUMM	B-Application
was	O
developed	O
to	O
be	O
a	O
tool	O
that	O
converted	O
human-readable	O
commands	O
into	O
byte-sized	O
tokens	O
that	O
then	O
would	O
be	O
read	O
by	O
an	O
executable	O
interpreter	O
program	O
that	O
presented	O
the	O
game	O
to	O
the	O
player	O
.	O
</s>
<s>
For	O
example	O
,	O
the	O
SCUMM	B-Application
command	O
walk	O
dr-fred	O
to	O
laboratory-door	O
would	O
be	O
tokenized	O
to	O
a	O
4-byte	O
command	O
.	O
</s>
<s>
The	O
only	O
exception	O
was	O
to	O
display	O
a	O
character	O
's	O
dialog	O
in	O
a	O
different	O
text	O
color	O
for	O
Maniac	B-Application
Mansion	I-Application
in	O
which	O
they	O
had	O
to	O
include	O
the	O
number	O
,	O
but	O
this	O
was	O
subsequently	O
revised	O
by	O
the	O
time	O
Zak	B-Application
McKracken	I-Application
was	O
released	O
.	O
</s>
<s>
The	O
scripts	O
included	O
the	O
ability	O
to	O
multitask	B-Operating_System
,	O
such	O
as	O
having	O
background	O
actors	O
enact	O
behavior	O
while	O
waiting	O
for	O
foreground	O
actions	O
to	O
complete	O
.	O
</s>
<s>
The	O
combined	O
tools	O
enabled	O
for	O
rapid	B-Device
prototyping	I-Device
of	O
a	O
game	O
.	O
</s>
<s>
The	O
SCUMM	B-Application
program	O
was	O
responsible	O
for	O
tokenizing	O
the	O
scripts	O
and	O
gathering	O
all	O
other	O
assets	O
(	O
such	O
as	O
art	O
and	O
sound	O
)	O
as	O
a	O
package	O
.	O
</s>
<s>
The	O
reusable	O
interpreter	O
was	O
called	O
SPUTM	O
,	O
the	O
SCUMM	B-Application
Presentation	O
Utility	O
(	O
TM	O
)	O
which	O
was	O
renamed	O
on	O
shipment	O
of	O
the	O
game	O
to	O
the	O
name	O
of	O
the	O
game	O
's	O
executable	O
.	O
</s>
<s>
SCUMM	B-Application
was	O
subsequently	O
reused	O
in	O
many	O
later	O
LucasArts	B-Application
adventure	I-Application
games	I-Application
being	O
both	O
updated	O
and	O
rewritten	O
several	O
times	O
.	O
</s>
<s>
According	O
to	O
Wilmunder	O
,	O
the	O
version	O
of	O
SCUMM	B-Application
for	O
Maniac	B-Application
Mansion	I-Application
had	O
about	O
80%	O
of	O
the	O
commands	O
that	O
would	O
end	O
up	O
being	O
used	O
in	O
the	O
later	O
versions	O
of	O
the	O
engine	O
,	O
with	O
most	O
key	O
commands	O
requiring	O
no	O
modification	O
.	O
</s>
<s>
Other	O
tools	O
and	O
engines	O
were	O
developed	O
alongside	O
SCUMM	B-Application
to	O
aid	O
in	O
development	O
,	O
and	O
named	O
for	O
other	O
body	O
fluids	O
.	O
</s>
<s>
FLEM	O
was	O
used	O
to	O
define	O
a	O
specific	O
room	O
,	O
track	O
objects	O
within	O
it	O
,	O
and	O
specify	O
clipping	B-Algorithm
planes	I-Algorithm
for	O
character	O
animation	O
.	O
</s>
<s>
For	O
the	O
game	O
Full	B-Application
Throttle	I-Application
,	O
the	O
team	O
worked	O
to	O
integrate	O
SCUMM	B-Application
with	O
the	O
INSANE	B-Application
animation	O
engine	O
that	O
had	O
formerly	O
been	O
developed	O
for	O
Star	B-Application
Wars	I-Application
:	I-Application
Rebel	I-Application
Assault	I-Application
.	O
</s>
<s>
Though	O
Wilmunder	O
had	O
gotten	O
the	O
two	O
systems	O
to	O
work	O
for	O
shipment	O
of	O
Full	B-Application
Throttle	I-Application
,	O
the	O
interaction	O
between	O
the	O
two	O
was	O
not	O
always	O
stable	O
,	O
and	O
spent	O
time	O
before	O
The	B-Application
Curse	I-Application
of	I-Application
Monkey	I-Application
Island	I-Application
to	O
have	O
SCUMM	B-Application
work	O
atop	O
the	O
INSANE	B-Application
engine	I-Application
,	O
replacing	O
some	O
of	O
the	O
SCUMM	B-Application
engine	I-Application
parts	O
to	O
use	O
that	O
were	O
native	O
to	O
INSANE	B-Application
.	O
</s>
<s>
Internally	O
,	O
much	O
of	O
the	O
workings	O
of	O
SCUMM	B-Application
were	O
undocumented	O
,	O
as	O
Wilmunder	O
believed	O
that	O
it	O
was	O
relatively	O
simple	O
to	O
learn	O
,	O
but	O
he	O
changed	O
this	O
approach	O
before	O
The	B-Application
Secret	I-Application
of	I-Application
Monkey	I-Application
Island	I-Application
.	O
</s>
<s>
To	O
train	O
new	O
hires	O
on	O
the	O
engine	O
,	O
Gilbert	O
put	O
them	O
through	O
SCUMM	B-Application
University	O
,	O
a	O
week-long	O
period	O
where	O
they	O
were	O
taught	O
how	O
to	O
use	O
the	O
SCUMM	B-Application
engine	I-Application
.	O
</s>
<s>
LucasArts	O
finally	O
abandoned	O
the	O
SCUMM	B-Application
engine	I-Application
in	O
1998	O
,	O
when	O
they	O
switched	O
to	O
GrimE	B-Application
,	O
using	O
the	O
free	B-Application
software	I-Application
scripting	O
language	O
Lua	B-Language
,	O
for	O
the	O
games	O
Grim	B-Application
Fandango	I-Application
and	O
Escape	B-Application
from	I-Application
Monkey	I-Application
Island	I-Application
.	O
</s>
<s>
In	O
March	O
2016	O
,	O
Wilmunder	O
revealed	O
that	O
he	O
would	O
share	O
design	O
documents	O
for	O
many	O
of	O
LucasArts	O
 '	O
adventure	O
games	O
and	O
the	O
source	O
code	O
for	O
the	O
SCUMM	B-Application
engine	I-Application
,	O
which	O
he	O
plans	O
to	O
provide	O
in	O
digital	O
format	O
via	O
GitHub	B-Application
.	O
</s>
<s>
Most	O
SCUMM	B-Application
games	O
feature	O
a	O
verb	O
–	O
object	O
design	O
paradigm	O
.	O
</s>
<s>
A	O
large	O
set	O
of	O
these	O
were	O
often	O
featured	O
at	O
the	O
bottom	O
of	O
the	O
screen	O
in	O
the	O
early	O
games	O
,	O
but	O
by	O
Full	B-Application
Throttle	I-Application
(	O
1995	O
)	O
and	O
The	B-Application
Curse	I-Application
of	I-Application
Monkey	I-Application
Island	I-Application
(	O
1997	O
)	O
these	O
had	O
been	O
reduced	O
to	O
a	O
"	O
verb	O
coin	O
"	O
appearing	O
at	O
the	O
mouse	O
cursor	O
with	O
the	O
option	O
to	O
use	O
character	O
's	O
eyes	O
(	O
to	O
look	O
)	O
,	O
hands	O
(	O
to	O
use	O
,	O
pick	O
up	O
,	O
push	O
,	O
pull	O
,	O
etc	O
.	O
</s>
<s>
The	O
notable	O
exception	O
to	O
this	O
general	O
paradigm	O
is	O
Loom	B-Application
(	O
1990	O
)	O
,	O
which	O
does	O
not	O
use	O
the	O
standard	O
verb	O
–	O
object	O
interface	O
,	O
but	O
replaces	O
most	O
actions	O
with	O
a	O
selection	O
of	O
spells	O
played	O
on	O
an	O
instrument	O
.	O
</s>
<s>
ScummC	O
is	O
a	O
set	O
of	O
tools	O
(	O
including	O
a	O
script	O
and	O
a	O
costume	O
compiler	O
,	O
a	O
walkboxes	O
editor	O
,	O
charset	O
,	O
graphics	O
,	O
audio	O
and	O
MIDI	O
tools	O
)	O
,	O
able	O
to	O
compile	O
its	O
own	O
JavaScript-like	O
language	O
into	O
SCUMM	B-Application
v6	O
bytecode	O
,	O
runnable	O
as	O
is	O
in	O
ScummVM	B-Device
.	O
</s>
<s>
It	O
allows	O
anyone	O
with	O
the	O
needed	O
skills	O
to	O
create	O
new	O
and	O
original	O
SCUMM	B-Application
games	O
,	O
with	O
features	O
on	O
par	O
with	O
Day	B-Application
of	I-Application
the	I-Application
Tentacle	I-Application
and	O
Sam	B-Application
&	I-Application
Max	I-Application
Hit	I-Application
the	I-Application
Road	I-Application
.	O
</s>
<s>
Scummbler	O
is	O
a	O
compiler	O
for	O
SCUMM	B-Application
bytecode	O
,	O
for	O
versions	O
3	O
to	O
5	O
of	O
the	O
SCUMM	B-Application
engine	I-Application
.	O
</s>
<s>
It	O
uses	O
scripts	O
decompiled	O
from	O
the	O
original	O
game	O
files	O
,	O
retrieved	O
using	O
a	O
combination	O
of	O
an	O
unpacking	O
tool	O
like	O
ScummPacker	O
(	O
also	O
by	O
the	O
author	O
of	O
Scummbler	O
)	O
,	O
and	O
the	O
descumm	O
tool	O
from	O
ScummVM	B-Device
.	O
</s>
<s>
ScummVM	B-Device
is	O
a	O
free	B-Application
and	I-Application
open	I-Application
source	I-Application
software	I-Application
project	O
to	O
make	O
a	O
portable	O
,	O
Simple	B-Operating_System
DirectMedia	I-Operating_System
Layer	I-Operating_System
(	O
SDL	O
)	O
library-based	O
SCUMM-engine	O
client	O
which	O
allows	O
many	O
of	O
the	O
SCUMM-engine	O
games	O
to	O
be	O
played	O
on	O
systems	O
where	O
the	O
original	O
versions	O
will	O
not	O
work	O
or	O
have	O
trouble	O
operating	O
,	O
including	O
modern	O
Windows	B-Application
and	O
Macintosh	B-Device
systems	O
,	O
Linux	B-Application
(	O
including	O
portable	O
handhelds	O
—	O
Android	B-Application
,	O
GP2X	B-Device
,	O
GP2X	B-Device
Wiz	I-Device
,	O
Maemo	B-Operating_System
,	O
etc	O
.	O
</s>
<s>
)	O
,	O
BeOS-Haiku	O
,	O
AmigaOS	B-Application
(	O
3.x	O
,	O
4.0	O
,	O
and	O
its	O
clones	O
MorphOS	B-Operating_System
and	O
AROS	B-Application
)	O
,	O
Palm	B-Operating_System
OS	I-Operating_System
,	O
Windows	B-Operating_System
Mobile	I-Operating_System
(	O
Pocket	B-Device
PC	I-Device
)	O
,	O
Dreamcast	B-Operating_System
,	O
PlayStation	B-Device
2	I-Device
,	O
PlayStation	B-Operating_System
Portable	I-Operating_System
,	O
Nintendo	B-Device
DS	I-Device
,	O
Wii	B-Operating_System
,	O
Symbian	B-Operating_System
(	O
SeriesXX	O
and	O
UIQ	O
)	O
,	O
iOS	B-Application
(	O
iPad	B-Device
,	O
iPhone	B-Device
,	O
iPod	B-Device
Touch	I-Device
)	O
,	O
webOS	B-Operating_System
and	O
QNX-Playbook	O
platforms	B-Device
.	O
</s>
<s>
is	O
a	O
SCUMM	B-Application
interpreter	O
developed	O
by	O
the	O
ScummC	O
author	O
.	O
</s>
<s>
hiscumm	O
is	O
an	O
attempt	O
to	O
port	O
and	O
some	O
bits	O
of	O
ScummVM	B-Device
to	O
the	O
Haxe	B-Language
platform	O
,	O
to	O
produce	O
an	O
interpreter	O
with	O
an	O
Adobe	B-Operating_System
Flash	I-Operating_System
backend	O
.	O
</s>
<s>
In-joke	O
references	O
were	O
a	O
common	O
feature	O
of	O
LucasArts	B-Application
adventure	I-Application
games	I-Application
.	O
</s>
<s>
Razor	B-Application
and	O
the	O
Scummettes	O
,	O
a	O
punk	O
band	O
mentioned	O
in	O
Maniac	B-Application
Mansion	I-Application
,	O
and	O
the	O
SCUMM	B-Application
bar	O
in	O
The	B-Application
Secret	I-Application
of	I-Application
Monkey	I-Application
Island	I-Application
are	O
both	O
named	O
after	O
the	O
scripting	O
language	O
.	O
</s>
<s>
In	O
Escape	B-Application
from	I-Application
Monkey	I-Application
Island	I-Application
,	O
victim	O
of	O
a	O
hostile	O
takeover	O
,	O
the	O
SCUMM	B-Application
bar	O
becomes	O
the	O
Lua	B-Language
bar	O
,	O
a	O
reference	O
to	O
the	O
programming	O
language	O
which	O
replaced	O
the	O
engine	O
used	O
for	O
the	O
prior	O
games	O
.	O
</s>
<s>
SCUMM	B-Application
is	O
also	O
listed	O
in	O
the	O
ingredients	O
of	O
grog	O
,	O
in	O
the	O
first	O
opus	O
of	O
the	O
Monkey	B-Application
Island	I-Application
saga	O
.	O
</s>
