Jog Shuffle

 

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Use this piece of code to create a simple "JogShuffle". Drop it on a #bitmap/#vector sprite - and there you are!

-- JogShuffle Behavior -- © 18-04-2000, by dirk eismann -- d.eismann@medienkonzepte.de -- feel free to use it in your projects -- please send me a line if you modify it in a way that enhances its functionality property spritenum property pOrgLoc property pAng property pActive property pHotSpots property pRange -- This is a quite simple implementaion of a JogShuffle -- by clicking/dragging the jog it updates to a new angle -- via simple angle calculations. -- There are currently two parameters that can be edited in -- the getPropertDescriptionList dialogue: -- pHotList: a lineralist containing degree values that shall --           represent the hotspots -- pRange:   the "sensitive area" around a Hotspot in degrees. --           eg: Hotspot #1 is 45 degree and the range is 10 --               the jog will react in the range from 35 to 55 deg on beginSprite me      -- pAng stores the actual angle (in degrees) of the jog   pAng = 0.0     -- origin of the sprite     pOrgLoc = sprite(spritenum).loc   sprite(spritenum).rotation = pAng    end beginSprite on mouseDown me   -- set the jog active   pActive = 1   end mouseDown on mouseUp me   -- deactivate the jog   pActive = 0 end mouseUp on prepareFrame me   if not (the mouseDown and pActive) then     pActive = 0   else     -- adjust the jog to the current mouse position     me.mAdjustJog()   end if end exitFrame on exitFrame me     -- check for hotspots, if there are any   if pHotSpots <> [] then     me.mCheckHotSpot()   end if   -- update the jog's rotation   sprite(spritenum).rotation = pAng end exitFrame on mAdjustJog me   -- get the new angle towards the mouse position   x = the mouseH   y = the mouseV      -- transform to 'normalized' coordinates   x = (- pOrgLoc[1] + x)   y = (- pOrgLoc[2] + y) * -1      -- although not mentioned in the Director manual,   -- it *IS* possible to pass two values into the atan() function!!   currRad = atan(x,y)      -- convert it back to degrees so we can update the sprite's rotation   currAng = me.mRadToDeg(currRad)      -- a little conversion here if the angle gets a negative sign   if currAng < 0 then     currAng = 360.0 + currAng   end if      -- store the new angle into pAng   pAng = currAng    end mAdjustJog on mCheckHotSpot me   -- check if the joggle is in a hotspot area   repeat with spot in pHotSpots          if abs(pAng - spot) < pRange then       -- ** just for this demo, enter your special code for hotspot handling here **         put "Hotspot at" && spot && "degrees."       exit repeat       -- ** end of the demo code     end if        end repeat end mCheckHotSpot on mDegToRad me, degrees   -- converts degrees to radians   -- returns radians   radians = degrees * pi / 180.00   return radians end mDegToRad on mRadToDeg me, radians   -- converts radians to degrees   -- returns degrees   degrees = radians * 180.00 / pi   return degrees   end mRadToDeg on getPropertyDescriptionList me   description = [:]      description.addProp(#pHotSpots,[#comment:"Hotspots as degree-list:",#format:#list,#default:[45,90,270]])   description.addProp(#pRange,[#comment:"'sensitive' area around each hotspot:",#format:#integer,#range:[#min:0,#max:10],#default:5])      return description    end getPropertyDescriptionList on getBehaviorDescription me      descriptionText = ""   put "JogShuffle Behavior, © 18-04-2000, by dirk eismann, d.eismann@medienkonzepte.de" & RETURN after descriptionText   put "-------------------------------------------------------------------------------" & RETURN after descriptionText   put "This is a quite simple implementaion of a JogShuffle" & RETURN after descriptionText   put "by clicking/dragging the jog it updates to a new angle" & RETURN after descriptionText   put "via simple angle calculations." & RETURN after descriptionText   put RETURN after descriptionText   put "There are currently two parameters that can be edited in" & RETURN after descriptionText   put "the getPropertDescriptionList dialogue:" & RETURN after descriptionText   put RETURN after descriptionText   put "pHotList: a lineralist containing degree values that" & RETURN after descriptionText   put "               represents the hotspots" & RETURN after descriptionText   put RETURN after descriptionText   put "pRange:   the 'sensitive area' around a Hotspot in degrees." & RETURN after descriptionText   put "               eg: Hotspot #1 is 45 degree and the range is 10" & RETURN after descriptionText   put "               the jog will react in the range from 35 to 55 deg" & RETURN after descriptionText   put "-------------------------------------------------------------------------------" & RETURN after descriptionText      return descriptionText    end getBehaviorDescription