<?php
function calcdistance($i1, $i2){
		$s_gal0	= $i1{0};	
		$s_gal1	=	$i1{1};
		$s_gal2	=	$i1{2};
		$s_reg0	=	$i1{4};	
		$s_reg1	=	$i1{5};
		$s_sys0	=	$i1{7};	
		$s_sys1	=	$i1{8};
		$s_ast0	=	$i1{10};
		$s_ast1	=	$i1{11};
		
		$t_gal0	=	$i2{0};
		$t_gal1	=	$i2{1};
		$t_gal2	=	$i2{2};
		$t_reg0	=	$i2{4};
		$t_reg1	=	$i2{5};
		$t_sys0	=	$i2{7};
		$t_sys1	=	$i2{8};
		$t_ast0	=	$i2{10};
		$t_ast1	=	$i2{11};
		
		$s_sys_x	=	$s_reg1 * 10 + $s_sys1;
		$s_sys_y	=	$s_reg0 * 10 + $s_sys0;
		$t_sys_x	=	$t_reg1 * 10 + $t_sys1;
		$t_sys_y	= $t_reg0 * 10 + $t_sys0;
		
		$var_gal	= abs(($s_gal1 - $t_gal1) * 19 + $s_gal2 - $t_gal2);
		$var_sys	= ceil(sqrt(bcpow(($t_sys_x - $s_sys_x), 2) + bcpow(($t_sys_y - $s_sys_y),2)));
		$var_ast0	=	abs($t_ast0 - $s_ast0);
		$var_ast1	=	abs($t_ast1 - $s_ast1);
		
		if ($var_gal)
		{
			if ($t_gal1 == $s_gal1)	{ $distance = $var_gal * 200; }
			if ($t_gal1 > $s_gal1)	{ $distance = ((9 - $s_gal2)* 200 + 2000 + $t_gal2 * 200); }
			if ($t_gal1 < $s_gal1)	{ $distance = $s_gal2 * 200 + 2000 + (9 - $t_gal2) * 200; }
		}
		else
		{
			if ($var_sys)
			{ 
				$distance = $var_sys;
			}
			else
			{
				if ($var_ast0) {$distance = $var_ast0/5;}else{ $distance=0.1; }
			}
		}
		return $distance;
	}
?>