TERA Hacking Guide - calcul distance between 2 Vectors : Tera Guides

Reversed from the function that set the crosshair distance, here is the C# implementation of what it do exactly :

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float dx = X1 - X2;
float dy = Y1 - Y2;
float dz = Z1 - Z2;

double distance = Math.Sqrt((double)((dx * dx) + (dy * dy) + (dz * dz)));

distance = Math.Floor(distance);
distance = Math.Ceiling(distance * 0.04);

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I'm sure it will be usefull for someone else