Distance Calculator

Distance Calculator Sept 2, 2005 22:14:20 GMT

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Post by SkulkrinBait on Sept 2, 2005 22:14:20 GMT

I'm trying to add the extra bit of code to work out distances from exact isles to isles, rather than just ocean sectors etc. It kind of works, the bit which translates the island coordinates from 1-25 to an x and y coord is OK but there is a problem.

If the island locations make the distance smaller than if they were both say islands xx:yy:11 and xx:yy:11 it doesn't work, I think it is adding the distance on regardless of whether or not it should be taking it off it.

Any idea how I would get round this?

Here's the code:

<?php
//distance/time calculator for inselkampf

if (isset($_POST['submit']))
{
$speed = $_POST['speed'];
$origin_first = $_POST['origin_first']; //eg 5:5
$origin_second = $_POST['origin_second'];
$destination_first = $_POST['destination_first'];
$destination_second = $_POST['destination_second'];
$origin_isle = $_POST['origin_isle'];
$destination_isle = $_POST['destination_isle'];

$x = 10 * ((($destination_first-1)%10)-(($origin_first-1)%10)) + (($destination_second-1)%10) - (($origin_second -1)%10);
$y = 10 * ((($destination_first-1)/10)-(($origin_first-1)/10)) + (($destination_second-1)/10) - (($origin_second -1)/10);
$origin_isle_ver = ceil($origin_isle/5);
echo "origin isle ver = $origin_isle_ver";
$origin_isle_hor = round(($origin_isle-($origin_isle_ver*5-5)));
echo "origin isle hor = $origin_isle_hor";
$destination_isle_ver = ceil($destination_isle/5);
$destination_isle_hor = round(($destination_isle-($destination_isle_ver*5-5)));
$z_hor = ($origin_isle_ver-$destination_isle_ver)*($origin_isle_ver-$destination_isle_ver);
$z_ver = ($origin_isle_hor-$destination_isle_hor)*($origin_isle_hor-$destination_isle_hor);
$z = sqrt($z_ver+$z_hor)*1.1;
echo "Z = $z";
$distance = sqrt((($x*$x) + ($y*$y)))*5;
$distance = $distance + $z;
echo "Distance $distance";
$time = $distance/$speed;
echo "Time = $time hours.";
$mins = round($time*60);
echo "Mins = $mins";
$mins = $mins-round($time)*60;
echo "Mins = $mins";
$hours = round($time);
echo "<br />Total Time Is $hours Hours and $mins Minutes";
}
else
{
?>
<html>
<p>Enter your island co-ordinates for the origin island first then destination. Please enter the details seperately ie if you are going from 15:10 to 18:12 enter 15 then 10 then 18 then 12.</p>
<p>I'll make this easier as I get time!</p>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
<table bgcolor="#ffffff" font color = "#000000" align="center" border="1" cellspacing="0" cellpadding="3">
<tr><td>Origin Ocean</td><td>
<input type="text" name="origin_first" maxlength="5">
</td></tr>
<tr><td>Origin Sector</td><td>
<input type="text" name="origin_second" maxlength="5">
</td></tr>
<tr><td>Origin island (1-25)</td><td>
<input type="text" name="origin_isle" maxlength="5">
</td></tr>
<tr><td>Destination Ocean</td><td>
<input type="text" name="destination_first" maxlength="5">
</td></tr>
<tr><td>Destination Sector</td><td>
<input type="text" name="destination_second" maxlength="5">
</td></tr>
<tr><td>Destination Island (1-25)</td><td>
<input type="text" name="destination_isle" maxlength="5">
</td></tr>
<tr><td>Speed</td><td>
<input type="text" name="speed" maxlength="5">
</td></tr>
<tr><td colspan="2" align="right">
<input type="submit" name="submit" value="Calculate">
</td></tr>
</table>
</form>
</html>
<?php
}
?>

I suppose you need to know if the journey is north or south/east or west and then see if the island locations are going to make it shorter or longer but it's late and I've got a headache!

Anyone got any ideas?

Morkin Alliance Forum - Inselkampf

Post by SkulkrinBait on Sept 2, 2005 19:52:59 GMT

Post by SkulkrinBait on Sept 2, 2005 22:14:20 GMT

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