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  1. #1
    CuppaCoffee's Avatar
    CuppaCoffee is offline Member
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    Default How to Measure Speed in Java?

    Greetings, everyone. Before I explain the title, I just want to introduce what I'm trying to do:

    I have a series of images. Mostly a body with two arms. It responds to the movement of the mouse. When the mouse moves, I want the arms to rotate backwards, as if dealing with a lot of air resistance. I have no problems with the rotation, the only issue is I want the arms to flail back more and more the faster the mouse is moving.. But then, how do I measure the speed of the mouse? Is there a way to measure how much pixels the mouse is covering when it moves over a certain amount of time? Or is there another method to get different results of an action to occur when dealing with various speeds of MouseMotion movement?

    I hope this isn't too vague. If you need any clarifications in order to help me out with this issue, feel free to let me know

  2. #2
    Norm's Avatar
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    Default Re: How to Measure Speed in Java?

    The mouse's position and the time the mouse was at that position should allow you to compute a speed:
    change in position/change in time.
    The System class has a method that returns the current system time.
    If you don't understand my response, don't ignore it, ask a question.

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