Dragging multiple sprites

 

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To use it, you only have to attach the behavior to the master sprite, ie, the one that will become draggable. The behavior uses the right mouse button for dragging. "SLAVE SPRITES: Write here the number of each sprite that you want to be attached with the master sprite. Separate each number with a comma. Ex: 2,3,4.; RELATIVE SLAVES SPRITES: Check the box if the sprite number you wrote above are relative numbers compare to the master sprite. If they are absolute numbers, then uncheck the box. That could be useful if you have many boxes to move having each of them many sprites where all the sprites contained in each boxes would have the same relative number to the master sprite. Then you would only have to copy the same behavior to each boxes.; ALLOW VERTICAL AND HORIZONTAL MOVES: Check one of each to allow your sprites to be dragged in each or both ways.

-- Behavior for dragging multiple sprites --Sylvain Langevin (Sylvain.Langevin@hec.ca) --version 1.0 --22 avril 2000 ---- properties -------------------------------- property pNumSpriteMaster   --sprite number of the sprite where the behavior is attached property pNumSPritesSlaves  --sprite numbers of the slaves sprites that will follow the sprite master location property pSpriteSlavesLocList  --location of all the slave sprites relative to the master sprite property pRelAbsSlaves  --type of the sprite numbers for the slaves sprites: if 0 then absolutes ; if 1 then relative to the sprite of the master property pVerticalMoveEnable  --allow vertical moves (0=no; 1=yes) property pHorizontalMoveEnable  --allow horizontal moves (0=no; 1=yes) property pNumSpriteSlavesList  --that list contains all the number of slaves sprites ----------------------------- on beginSprite me      pSpriteSlavesLocList = [:]   pNumSpriteSlavesList = []      --change pNumSPritesSlaves in list   pNumSPritesSlaves = string(pNumSPritesSlaves)   repeat with a = 1 to pNumSPritesSlaves.item.count     pNumSpriteSlavesList.append(value(pNumSPritesSlaves.item[a]))   end repeat      pNumSpriteMaster = me.spriteNum      --build the list for relative positions of the slaves sprites relative to the master sprite   repeat with a = 1 to pNumSpriteSlavesList.count     if pRelAbsSlaves = 0 then       relLocH = sprite(pNumSpriteMaster).locH - sprite(pNumSpriteSlavesList[a]).locH       relLocV = sprite(pNumSpriteMaster).locV - sprite(pNumSpriteSlavesList[a]).locV       relLoc = [relLocH, relLocV]       pSpriteSlavesLocList.addProp(pNumSpriteSlavesList[a],relLoc)     else       if pRelAbsSlaves = 1 then         relLocH = sprite(pNumSpriteMaster).locH - sprite(pNumSpriteSlavesList[a] + pNumSpriteMaster).locH         relLocV = sprite(pNumSpriteMaster).locV - sprite(pNumSpriteSlavesList[a] + pNumSpriteMaster).locV         relLoc = [relLocH, relLocV]         pNumSpriteSlavesList.addProp(pNumSpriteSlavesList[a] + pNumSpriteMaster,relLoc)       end if     end if   end repeat       end ----------------------------- on RightMouseDown me      --put the mouseLoc in variable; it will help us to find if the mouse moved from the moment where the button has been clicked   mousePosInitial = the mouseLoc      --difference between the reg point of the sprite and the mouseLoc; keep the relation between them during dragging   offset = the mouseLoc - sprite(pNumSpriteMaster).loc      --enable dragging   repeat while the rightMouseDown     if mousePosInitial <> the mouseLoc then              --check if vertical is disabled, then move horizontally only       if pVerticalMoveEnable = 0 then         sprite(pNumSpriteMaster).locH =  the mouseH - offset[1]         newLoc = sprite(pNumSpriteMaster).loc                  --move the slaves sprites         repeat with a = 1 to pSpriteSlavesLocList.count           sprite(pSpriteSlavesLocList.getPropAt(a)).locH = newLoc[1] - pSpriteSlavesLocList[a][1]         end repeat                  updateStage       else         --if horizontal is disabled, then move vertically only         if pHorizontalMoveEnable = 0 then           sprite(pNumSpriteMaster).locV =  the mouseV - offset[2]           newLoc = sprite(pNumSpriteMaster).loc                      --move the slaves sprites           repeat with a = 1 to pSpriteSlavesLocList.count             sprite(pSpriteSlavesLocList.getPropAt(a)).locV = newLoc[2] - pSpriteSlavesLocList[a][2]           end repeat                      updateStage         else           --move freely           sprite(pNumSpriteMaster).loc =  the mouseLoc - offset           newLoc = sprite(pNumSpriteMaster).loc                      --move the slaves sprites           repeat with a = 1 to pSpriteSlavesLocList.count             sprite(pSpriteSlavesLocList.getPropAt(a)).locH = newLoc[1] - pSpriteSlavesLocList[a][1]             sprite(pSpriteSlavesLocList.getPropAt(a)).locV = newLoc[2] - pSpriteSlavesLocList[a][2]           end repeat                      updateStage         end if       end if     end if   end repeat    end -------------------------------------- on getPropertyDescriptionList        set p_list = [ ¬          #pNumSPritesSlaves: [ #comment:   "Slaves sprites:",                  #format:   #string, #default: "" ], #pRelAbsSlaves: [ #comment:   "Relative slaves sprites:", #format: #boolean, #default: 0 ], #pVerticalMoveEnable: [ #comment:   "Allow vertical moves:", #format: #boolean, #default: 1 ], #pHorizontalMoveEnable: [ #comment:   "Allow horizontal moves:", #format: #boolean, #default: 1 ]]   return p_list   end on getBehaviorDescription   return ¬    "Description" & RETURN & "Behavior enabling to drag multiple sprite together while keeping their relative location. Could be useful, for example, if you make a remote control (not using a MIAW) and want to move all the sprite contained in the remote like a window. To use it, you only have to attach the behavior to the master sprite, ie, the one that will become draggable. The behavior uses the right mouse button for dragging."& RETURN &  "PARAMETERS:" & RETURN & "SLAVE SPRITES: Write here the number of each sprite that you want to be attached with the master sprite. Separate each number with a comma. Ex: 2,3,4."  & RETURN & "RELATIVE SLAVES SPRITES: Check the box if the sprite number you wrote above are relative numbers compare to the master sprite. If they are absolute numbers, then uncheck the box. That could be useful if you have many boxes to move having each of them many sprites where all the sprites contained in each boxes would have the same relative number to the master sprite. Then you would only have to copy the same behavior to each boxes." & RETURN & "ALLOW VERTICAL AND HORIZONTAL MOVES: Check one of each to allow your sprites to be dragged in each or both ways."   end