local unitTag = "player"
local zoneName = GetUnitZone( unitTag )
local x, y, z = GetMapPlayerPosition( unitTag )
The values of x, y and z are relative to the zone map. And they are very "small" values. IE:
x might come back as 0.23788127281
x = west-east
y = north-south
z = altitude
A perfect 0,0,0 (for x,y,z) would be considered Base or Root position for that map.
x - Increasing value is moving west from 0. Decreasing is moving east.
y - Increasing value is moving north, decreasing is moving south.
z - Increasing value is descending altitude (distance below "sea level", if you will)
EDIT: I know, not an addon. But it's code to help someone else build one
