special base class for tools that use the pointer
 handles differences between mouse/touch
 manages mouse down/up for dragging 
https://citybuilder.softleitner.com/manual
 
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| override void  | DeactivateTool () | 
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virtual void  | ActivateTool () | 
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virtual int  | GetCost (Item item) | 
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void  | OnPointerEnter (PointerEventData eventData) | 
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void  | OnPointerExit (PointerEventData eventData) | 
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virtual void  | Start () | 
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| override void  | updateTool () | 
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void  | updatePointer (Vector2Int mousePoint, Vector2Int dragStart, bool isDown, bool isApply) | 
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void  | onApplied () | 
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virtual void  | OnDisable () | 
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void  | enter () | 
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void  | exit () | 
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override bool  | IsTouchPanAllowed [get] | 
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virtual bool  | ShowGrid [get] | 
|   | whether the IGridOverlay gets shown for this tool 
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virtual bool  | IsTouchPanAllowed [get] | 
|   | whether the camera can be panned by touch drag 
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bool  | IsToolActive [get] | 
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bool  | IsTouchActivated [get] | 
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| virtual string  | TooltipName [get] | 
|   | main text in the tooltip  
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| virtual string  | TooltipDescription [get] | 
|   | smaller but potentially longer text below the main text  
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◆ DeactivateTool()
  
  
      
        
          | override void CityBuilderCore.PointerToolBase.DeactivateTool  | 
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◆ updateTool()
  
  
      
        
          | override void CityBuilderCore.PointerToolBase.updateTool  | 
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inlineprotectedvirtual   |