I'm trying to make an object move towards the center of the map. However with the method I'm using the object's speed gets slower. Is it possible to do what I want to do with out making the object have to face the center (in other words I don't want to use entity coordinates I want to use world coordinates).

vec_diff(temp,nullvector,my.x); // you can copy and invert the vector my.x, too
if(vec_length(temp) > 25)
{
vec_normalize(temp,25*time_step); // 25 is your speed
c_move(me,nullvector,temp,...);
}