TIFFANY HOLMES>ART OF SURVEILLANCE>HANDOUT 3>CLASS 4

EVENTS>Examples

on exitframe on startmovie

SPRITE PROPERTIES>Examples>loc, loch, locv, width, height, rotation, member, membernum, color, blend, etc.

Examples setting sprite properties:

sprite(2).loc=point(0,0) –(sprite in channel 2 located at top left of stage)

sprite(2).blend=30 --(sprite in channel 2 at 30% opacity)

sprite(7).trails=1 --(sprite in channel 7 leaves trail of marks at different positions)

SPECIAL QUICKTIME PROPERTIES:

sprite(1).movierate=-1 --plays QT backward

sprite(1).movierate=1 -- plays QT at normal rate 30 fps

sprite(1).movierate=1+.01 --increases speed of QT playback w/ floating point #

sprite(1).movierate=2 -- plays QT 2x normal speed

COMMANDS

go next --go to the next marker AND go previous --go to the previous marker

go to the frame –loop playback head in same frame

puppetSound “firegun” –play sound in internal cast called firegun

CONDITIONALS>Basic structure

if –something is true—then

DO SOMETHING—execute lingo command

end if

Example: from movie trackchange_QT.dir

on exitFrame me

global TrackObj

tolerance = 20

GrabOneFrame(TrackObj)

TrackResults=TrackChangeBlobs(TrackObj,[[tolerance,Rect(0,0,320,240)]])

FirstResult=TrackResults[1]

if FirstResult.count=0 then --(i.e. if there’s no change in the reference frame)

sprite(10).movierate=0 --(i.e. stop playback the QT movie in ch10)

--stop

end if

if FirstResult.count>1 then --(i.e. if there’s a marked change in the reference frame)

sprite(10).movierate=1 --(i.e. play the QT movie at normal speed in ch10)

end if

go the frame

end