cgrp_ug-edit/include/mapandreas.inc

#define MAP_ANDREAS_MODE_NONE			0
#define MAP_ANDREAS_MODE_MINIMAL		1 // for future use
#define MAP_ANDREAS_MODE_FULL			2

native MapAndreas_Init(mode);
native MapAndreas_FindZ_For2DCoord(Float:X, Float:Y, &Float:Z);