Jump to content

Search the Community

Showing results for tags 'radius'.



More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • W3Schools
    • General
    • Suggestions
    • Critiques
  • HTML Forums
    • HTML/XHTML
    • CSS
  • Browser Scripting
    • JavaScript
    • VBScript
  • Server Scripting
    • Web Servers
    • Version Control
    • SQL
    • ASP
    • PHP
    • .NET
    • ColdFusion
    • Java/JSP/J2EE
    • CGI
  • XML Forums
    • XML
    • XSLT/XSL-FO
    • Schema
    • Web Services
  • Multimedia
    • Multimedia
    • FLASH

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


AIM


MSN


Website URL


ICQ


Yahoo


Jabber


Skype


Location


Interests


Languages

Found 1 result

  1. Ok bare with me because I have no idea what this is actually called. If someone knows I will update the title. I am working on a site that will act as an out-of-game marketplace for in-game items. I want to ensure that the player is within the zone of the market in-game so I need an easy way to generate an array of valid coordinates the player could be within to access the market. Ideally i would like to run a function with a parameter specifying the radius of a square and another of the player's current geoID. Basic geometry would help if the geoID's were, in my mind, easier to predict. here is problem: Going North: geoID's increase by 512 points Going East: geoID's increase by 1 Going South: geoID's decrease by 512 Going West geoID's decrease by 1 I realize this is more of a math question then PHP but I have no idea where to start to account for the odd increase. //Generate the exchangeArea array of a 5x5 square around the centeral id specified in param2. $exchangeArea = getExchangeArea(3,117053149); //if player geoID equals one of the values in the exchangeArea array return true else false function getExchangeArea(int radius, int geoID) { . . . } I have attached a graphic showing all the geoIDs for the above example. Ignore the geoAlt that is just they players Y axis. So there is no confusion, North on this diagram is the right side of the image. Making the top West. Any help on where to begin, even if its helping me identify keywords to search on for this kind of formula, algorithm, equation... what ever it's called, would be greatly appreciated.
×
×
  • Create New...