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Vector3:compare - Revision history
2026-05-15T09:32:24Z
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Myonlake: Added Vector3:compare method to the Useful Functions
2016-12-28T19:42:16Z
<p>Added Vector3:compare method to the Useful Functions</p>
<p><b>New page</b></p><div>{{Useful Function}}<br />
<lowercasetitle></lowercasetitle><br />
__NOTOC__<br />
This method checks whether two [[Vector3|vectors]] match (optionally with precision defined).<br />
<br />
==Syntax==<br />
<syntaxhighlight lang="lua"><br />
bool Vector3:compare ( Vector3 comparison [ , float precision ] )<br />
</syntaxhighlight><br />
<br />
===Required Arguments=== <br />
* '''comparison:''' The [[Vector3]] to compare to.<br />
<br />
===Optional Arguments=== <br />
* '''precision:''' A [[float]] representing the precision of the comparison.<br />
<br />
===Returns===<br />
A [[boolean]] representing whether the vectors match taking into account the precision.<br />
<br />
==Code==<br />
<syntaxhighlight lang="lua"><br />
function Vector3:compare( comparison, precision )<br />
assert( type( comparison.getLength ) == 'function', "First argument must be a Vector3." )<br />
assert( not precision or type( precision ) == 'number', "Precision type must be a number, got " .. type( precision ) .. "." )<br />
<br />
if ( not precision ) then<br />
if ( self:getX( ) ~= comparison:getX( ) ) or<br />
( self:getY( ) ~= comparison:getY( ) ) or<br />
( self:getZ( ) ~= comparison:getZ( ) ) then<br />
return false<br />
end<br />
else<br />
if ( math.abs( self:getX( ) - comparison:getX( ) ) > precision ) or<br />
( math.abs( self:getY( ) - comparison:getY( ) ) > precision ) or<br />
( math.abs( self:getZ( ) - comparison:getZ( ) ) > precision ) then<br />
return false<br />
end<br />
end<br />
<br />
return true<br />
end<br />
</syntaxhighlight><br />
<br />
==See Also==<br />
{{Useful_Functions}}</div>
Myonlake