bw_closer() – Determine if now is closer to wanted than the best so far

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Description

Determine if now is closer to wanted than the best so far

1. = perfect – this is the exact value
2. = better – the new value is better than best so far
3. = it's a start – well at least it's not 0
4. = same – the new value is the same as the best so far, but it's not the wanted value
5. = worse – the new value is not as good as the best so far

x is the EXACT value that we want – the $wanted variable In the table below: z > y > x > w > 0

$best	$now	result
0	w/y/z	2 = it’s a start
0	x	9 = perfect
w	w	1 = same
w	x	9 = perfect
w	y/z	3 = better
x	w	0 = worse
x	x	9 = perfect
x	y/z	0 = worse
y	w	0 = worse
y	x	9 = perfect
y	y	1 = same
y	z	0 = worse
z	w	0 = worse
z	x	9 = perfect
z	y	3 = better
z	z	1 = same

Usage

$integer = bw_closer( $wanted, $best, $now );

Parameters

$wanted

( integer ) required – the exact value we want to match

$best

( integer ) required – the best value so far

$now

( integer ) required – the current value

Returns

integer $result – one of the above

Source

File name: oik-nivo-slider/nivo.php
Lines:

function bw_closer( $wanted, $best, $now ) {
  if ( $wanted == $best  ) {
    if ( $now == $best ) {
      $result = 9;
    } else {
      $result = 0;
    }  
  } elseif ( $now == $wanted ) {
      $result = 9;
  } elseif ( $best == 0 ) {
      $result = 2;  
  } elseif ( ( $best < $wanted ) && ( $now > $wanted ) ) {
      $result = 3;    
  } elseif ( ( $now < $best ) && ( $now > $wanted) ) {
      $result = 3;
  } elseif ( $now == $best ) {
      $result = 1;
  } else {
    $result = 0;
  }
  return( $result );
}        
 

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