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Quick Way to Get Vector Distance?

by John Kanalakis · in Torque X 2D · 10/21/2007 (6:04 pm) · 1 replies

Is there a quick way to get the distance between to vector points? TGB has t2dVectorDistance and it seems like the T2DVectorUtil class would be a great place stick this. I'm able to get by with my own Pythagorian check for now, but I'm wondering if there's a faster way. Currently, I'm calculating this...

homepages.inf.ed.ac.uk/rbf/CVonline/LOCAL_COPIES/BASICMAT/img24.gif
by coding this...

float xDist = System.Math.Abs(_sceneObject.Position.X - _targetObject.Position.X);
float yDist = System.Math.Abs(_sceneObject.Position.Y - _targetObject.Position.Y);
double Distance = System.Math.Sqrt((xDist * xDist) + (yDist * yDist));

John K.
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EnvyGames

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John Kanalakis is the owner of EnvyGames, an independent game development studio in Silicon Valley that produces games and tools for Xbox 360, Windows, and the Web.

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    Associate John Kanalakis
    EnvyGames
    #1
    10/21/2007 (11:42 pm)
    Ouch... I found this hiding in plain sight... a static Distance method hanging off of the Vector2 class. In fact, there's a goldmine of great vector math functions. Now, I can replace the code above with one line of code:

    float Distance = Vector2.Distance( _sceneObject.Position, _targetObject.Position);

    John K.