Move sprite along mouse vector Behavior

 

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Moves any sprite(s) relative to the "mousevector" (the x/y change of the mouseLoc measured each frame)

-- Move sprite along mouse vector Behavior -- © 28-04-2000, 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 pSprite property pLoc property pVector property pEndLoc property pStartLoc property pStop on beginSprite me   -- sprite reference   pSprite = sprite(me.spritenum)   -- sprite position reference   pLoc = pSprite.locH      -- for calculating the mouse movement   pStartLoc = the mouseLoc   pEndLoc = pStartLoc      -- current vector   pVector = point(0,0) end beginSprite on prepareFrame me   -- store the current mouse position   pStartLoc = the mouseLoc end prepareFrame on exitFrame me      -- as soon as the mouse stops, store the new position   if the lastRoll > 4 then     pEndLoc = the mouseLoc   end if      if pStartLoc <> pEndLoc then          pVector = pStartLoc - pEndLoc     -- because the sprite may behave strange if the movement is minimal     -- the vector is set to 0,0 if one component"s value is 1 or less     if pVector[1].abs <= 1 and pVector[2].abs <= 1 then       pVector = point(0,0)     end if        end if      pSprite.loc = pSprite.loc + pVector      if pStop then     -- if the sprite should stop immediately, set the vector back to 0,0     pVector = point(0,0)     end if    end exitFrame on getPropertyDescriptionList   description = [:]   description.addProp(#pStop,[#comment:"Stop movement if mouse stops movement:",#format:#boolean,#default:false])   return description end getPropertyDescriptionList on getBehaviorDescription me      descriptionText = ""   put "Move sprite along mouse vector Behavior, © 28-04-2000, by dirk eismann, d.eismann@medienkonzepte.de" & RETURN after descriptionText   put "---------------------------------------------------------------------------------------------------" & RETURN after descriptionText   put "Drop on any sprite(s)." & RETURN after descriptionText   put "Everytime the mouse position changes, the sprite"s position is" & RETURN after descriptionText   put "updated relative to the new mouse position." & RETURN after descriptionText   put RETURN after descriptionText   put "There is currently one parameters that can be edited in" & RETURN after descriptionText   put "the getPropertDescriptionList dialogue:" & RETURN after descriptionText   put RETURN after descriptionText   put "pStop: boolean value. If set to true, the sprite stops movement" & RETURN after descriptionText   put "          when the mouse "sleeps". otherwise the sprite keeps" & RETURN after descriptionText   put "          on moving until the mouse position changes." & RETURN after descriptionText   put "---------------------------------------------------------------------------------------------------" & RETURN after descriptionText      return descriptionText    end getBehaviorDescription