top, bottom, left and right positions is not a map position in 3 directions.
guess you saw that columns in instance dungeon monster respawn resource.
so, bottom and left are min X and min Y coordinate, top and right are max X and max Y coordinates. that coordinates used to generate random position for monster's spawn at its death.
it works same as random respawn schema used for random respawn in LUA, using commands
add_random_area
add_random_monster
set_random_respawn
look here:
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to get map's local X and Y position, just use such a script:
Code:
function get_lc()
local x = gv("x")
local y = gv("y")
_x = x - math.floor(x / 16128) * 16128
_y = y - math.floor(y / 16128) * 16128
message (_x .. ", " .. _y)
end