graphics.h

This is a discussion on graphics.h within the C++ Programming forums, part of the General Programming Boards category; I downloaded this graphics library: http://www.uniqueness-template.com/devcpp/graphics.h and I have figured it out for the most part, but I have one ...

  1. #1
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    Dec 2007
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    graphics.h

    I downloaded this graphics library:
    http://www.uniqueness-template.com/devcpp/graphics.h

    and I have figured it out for the most part, but I have one simple question....

    I want to know how to detect if the user clicks inside a circle (I'm fairly certain that this just has something to do with trig which I havn't learned yet)

    I made a function for squares:

    Code:
    bool Squareclick(int x1, int y1, int x2, int y2, int click)
        {
             if(click != 513 & click != 516 & click != 519)
             {
                  click = (click + 1) * 3 + 510;         
             }
             //Click Types WM_LBUTTONDOWN replace L with M or R
             bool h = false;
             if(mousex() > x1 & mousex() < x2 & mousey() > y1 & mousey() < y2 & ismouseclick(click) == true)
             {
                  h = true;            
             }
             else { clearmouseclick(click); }
             return h; 
        }
    So if someone could help me to detect if a click occurs in a circle that would be great

    also, is their a easy way to detect if one of the radii of a circle has come in contact with something? Just a general math algorithm for finding where the radii are would be nice.

    thanks in advance

  2. #2
    Super Moderator VirtualAce's Avatar
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    9,590
    The equation of a circle should be a clue.

  3. #3
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    Dec 2007
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    19

    hm?

    But how would I find that out??

  4. #4

  5. #5
    Registered User
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    Dec 2007
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    Ahhh many thanks

    Ill impliment this tommorow

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