Click
Click world map events are transmitted when the user double-clicks on the world map. If the user has J-Mod privileges and holds the 'Control' and 'Shift' keys down as they do the click, a different packet is transmitted instead. This packet is intended for a feature that never released - world map hints. In the pre-eoc days, players could double-click on their world map to set a 'Destination marker' which had a blue arrow to it, allowing them easier navigation to the given destination. In OldSchool RuneScape, there is a RuneLite plugin that accomplishes the same thing. Additionally, the double-clicking is fairly broken in the C++ client, and only sends this packet in some extreme cases when dragging the world map around, not through the traditional double-clicking.