code/modules/minimap/_minimap.dm 
| /proc/add_minimap_blip | Create a minimap blip on the z-level in question, object is optional, and will tie the blip to the object in question, and will clean up itself if the object in question is deleted |
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| /proc/get_minimap_blips_in_area | Returns minimap blips matching a tag that are within distance tiles of target_turf on the same z-level. |