Basic Vectors

gistfile1.lua

local ex,ey,ez = object.getTranslation ( hEnemy,object.kGlobalSpace )
local ox,oy,oz = object.getTranslation ( o,object.kGlobalSpace )

-- vector pointing at the enemy
local dx,dy,dz = math.vectorSubtract ( ex,ey,ez,ox,oy,oz )

-- distance between enemy and object
local dist = math.vectorLength ( dx,dy,dz )
 
-- vector pointing at enemy with length of half the distance
local fx,fy,fz = math.vectorSetLength ( dx,dy,dz, dist * 0.5 )

-- Coordinate starting at the character going dist * 0.5 towards enemy
local x,y,z = math.vectorAdd ( ox,oy,oz,fx,fy,fz )