Follow the leader

 

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Instructions: Designate one sprite to be the LEADER. Put as many other sprites in adjacent channels which will be the FOLLOWERS. Make sure the LEADER sprite is in the highest sprite channel.Drop this behavior on all FOLLOWERS. Move the leader through your own lingo, or by setting it as MOVEABLE in the score.

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property pLeader -- Which sprite to follow. property pVLag -- How much to "lag" behind the leader vertically property pHLag -- How much to "lag" behind the leader horizontally property pActive -- This turns on or off the pVLag and the pHLag on beginSprite me   me.pLeader = me.spriteNum + 1 -- Which sprite to follow.   me.pVLag = (random(2) + 1) * .1 -- How much to "lag" behind the leader vertically   me.pHLag = (random(2) + 1) * .1 -- How much to "lag" behind the leader horizontally   me.pActive = [1,1] -- This turns on or off the pVLag and the pHLag end beginSprite on exitFrame me   vLeaderLoc = sprite(me.pLeader).loc -- Find your leader"s position   vMyLoc = sprite(me.spriteNum).loc -- Get your position   vHDif = vLeaderLoc[1] - vMyLoc[1] -- Find the horizontal difference from the leader   vVDif = vLeaderLoc[2] - vMyLoc[2] -- Find the vertical difference from the leader      -- Follow the leaders" position with a horizontal lag   if me.pActive[1] then sprite(me.spriteNum).locH = vMyLoc[1] + (vHDif * me.pHLag)   -- Follow the leaders" position with a vertical lag   if me.pActive[2] then sprite(me.spriteNum).locV = vMyLoc[2] + (vVDif * me.pVLag) end exitFrame on getBehaviorDescription me   vDesc = ¬ "Description: This behavior will make an unlimited number of sprites follow a LEADER sprite, with¬ a definable LAG, which can make for some interesting effects, such as a snake, or a¬ streamer, or a kite. " & RETURN & RETURN & ¬ "Instructions: Designate one sprite to be the LEADER.¬ Put as many other sprites in adjacent channels which will be the FOLLOWERS.¬ Make sure the LEADER sprite is in the highest sprite channel.¬ Drop this behavior on all FOLLOWERS. Move the leader through your own lingo,¬ or by setting it as MOVEABLE in the score. Demo and source at: ¬ http://www.mindspring.com/~alqueen/FollowTheLeader.dir"   return vDesc end getBehaviorDescription

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