pokemon-showdown-client/data/typechart.inc.php

<?php
// damage taken is an int, since I don't trust floats. :|
// 0 = normal
// 1 = se
// 2 = resist
// 3 = immune
$PokemonTypeDamage = array(1, 2, .5, 0);
$PokemonTypeChart = array(
	'Normal' => array(
		'damageTaken' => array(
			'Normal' => 0,
			'Fire' => 0,
			'Water' => 0,
			'Grass' => 0,
			'Electric' => 0,
			'Ice' => 0,
			'Fighting' => 1,
			'Poison' => 0,
			'Ground' => 0,
			'Flying' => 0,
			'Psychic' => 0,
			'Bug' => 0,
			'Rock' => 0,
			'Ghost' => 3,
			'Dragon' => 0,
			'Dark' => 0,
			'Steel' => 0,
		)
	),
	'Fire' => array(
		'damageTaken' => array(
			'Normal' => 0,
			'Fire' => 2,
			'Water' => 1,
			'Grass' => 2,
			'Electric' => 0,
			'Ice' => 2,
			'Fighting' => 0,
			'Poison' => 0,
			'Ground' => 1,
			'Flying' => 0,
			'Psychic' => 0,
			'Bug' => 2,
			'Rock' => 1,
			'Ghost' => 0,
			'Dragon' => 0,
			'Dark' => 0,
			'Steel' => 2,
		)
	),
	'Water' => array(
		'damageTaken' => array(
			'Normal' => 0,
			'Fire' => 2,
			'Water' => 2,
			'Grass' => 1,
			'Electric' => 1,
			'Ice' => 2,
			'Fighting' => 0,
			'Poison' => 0,
			'Ground' => 0,
			'Flying' => 0,
			'Psychic' => 0,
			'Bug' => 0,
			'Rock' => 0,
			'Ghost' => 0,
			'Dragon' => 0,
			'Dark' => 0,
			'Steel' => 2,
		)
	),
	'Grass' => array(
		'damageTaken' => array(
			'Normal' => 0,
			'Fire' => 1,
			'Water' => 2,
			'Grass' => 2,
			'Electric' => 2,
			'Ice' => 1,
			'Fighting' => 0,
			'Poison' => 1,
			'Ground' => 2,
			'Flying' => 1,
			'Psychic' => 0,
			'Bug' => 1,
			'Rock' => 0,
			'Ghost' => 0,
			'Dragon' => 0,
			'Dark' => 0,
			'Steel' => 0,
		)
	),
	'Electric' => array(
		'damageTaken' => array(
			'Normal' => 0,
			'Fire' => 0,
			'Water' => 0,
			'Grass' => 0,
			'Electric' => 2,
			'Ice' => 0,
			'Fighting' => 0,
			'Poison' => 0,
			'Ground' => 1,
			'Flying' => 2,
			'Psychic' => 0,
			'Bug' => 0,
			'Rock' => 0,
			'Ghost' => 0,
			'Dragon' => 0,
			'Dark' => 0,
			'Steel' => 2,
		)
	),
	'Ice' => array(
		'damageTaken' => array(
			'Normal' => 0,
			'Fire' => 1,
			'Water' => 0,
			'Grass' => 0,
			'Electric' => 0,
			'Ice' => 2,
			'Fighting' => 1,
			'Poison' => 0,
			'Ground' => 0,
			'Flying' => 0,
			'Psychic' => 0,
			'Bug' => 0,
			'Rock' => 1,
			'Ghost' => 0,
			'Dragon' => 0,
			'Dark' => 0,
			'Steel' => 1,
		)
	),
	'Fighting' => array(
		'damageTaken' => array(
			'Normal' => 0,
			'Fire' => 0,
			'Water' => 0,
			'Grass' => 0,
			'Electric' => 0,
			'Ice' => 0,
			'Fighting' => 0,
			'Poison' => 0,
			'Ground' => 0,
			'Flying' => 1,
			'Psychic' => 1,
			'Bug' => 2,
			'Rock' => 2,
			'Ghost' => 0,
			'Dragon' => 0,
			'Dark' => 2,
			'Steel' => 0,
		)
	),
	'Poison' => array(
		'damageTaken' => array(
			'Normal' => 0,
			'Fire' => 0,
			'Water' => 0,
			'Grass' => 2,
			'Electric' => 0,
			'Ice' => 0,
			'Fighting' => 2,
			'Poison' => 2,
			'Ground' => 1,
			'Flying' => 0,
			'Psychic' => 1,
			'Bug' => 2,
			'Rock' => 0,
			'Ghost' => 0,
			'Dragon' => 0,
			'Dark' => 0,
			'Steel' => 0,
		)
	),
	'Ground' => array(
		'damageTaken' => array(
			'Normal' => 0,
			'Fire' => 0,
			'Water' => 1,
			'Grass' => 1,
			'Electric' => 3,
			'Ice' => 1,
			'Fighting' => 0,
			'Poison' => 2,
			'Ground' => 0,
			'Flying' => 0,
			'Psychic' => 0,
			'Bug' => 0,
			'Rock' => 2,
			'Ghost' => 0,
			'Dragon' => 0,
			'Dark' => 0,
			'Steel' => 0,
		)
	),
	'Flying' => array(
		'damageTaken' => array(
			'Normal' => 0,
			'Fire' => 0,
			'Water' => 0,
			'Grass' => 2,
			'Electric' => 1,
			'Ice' => 1,
			'Fighting' => 2,
			'Poison' => 0,
			'Ground' => 3,
			'Flying' => 0,
			'Psychic' => 0,
			'Bug' => 2,
			'Rock' => 1,
			'Ghost' => 0,
			'Dragon' => 0,
			'Dark' => 0,
			'Steel' => 0,
		)
	),
	'Psychic' => array(
		'damageTaken' => array(
			'Normal' => 0,
			'Fire' => 0,
			'Water' => 0,
			'Grass' => 0,
			'Electric' => 0,
			'Ice' => 0,
			'Fighting' => 2,
			'Poison' => 0,
			'Ground' => 0,
			'Flying' => 0,
			'Psychic' => 2,
			'Bug' => 1,
			'Rock' => 0,
			'Ghost' => 1,
			'Dragon' => 0,
			'Dark' => 1,
			'Steel' => 0,
		)
	),
	'Bug' => array(
		'damageTaken' => array(
			'Normal' => 0,
			'Fire' => 1,
			'Water' => 0,
			'Grass' => 2,
			'Electric' => 0,
			'Ice' => 0,
			'Fighting' => 2,
			'Poison' => 0,
			'Ground' => 2,
			'Flying' => 1,
			'Psychic' => 0,
			'Bug' => 0,
			'Rock' => 1,
			'Ghost' => 0,
			'Dragon' => 0,
			'Dark' => 0,
			'Steel' => 0,
		)
	),
	'Rock' => array(
		'damageTaken' => array(
			'Normal' => 2,
			'Fire' => 2,
			'Water' => 1,
			'Grass' => 1,
			'Electric' => 0,
			'Ice' => 0,
			'Fighting' => 1,
			'Poison' => 2,
			'Ground' => 1,
			'Flying' => 2,
			'Psychic' => 0,
			'Bug' => 0,
			'Rock' => 0,
			'Ghost' => 0,
			'Dragon' => 0,
			'Dark' => 0,
			'Steel' => 1,
		)
	),
	'Ghost' => array(
		'damageTaken' => array(
			'Normal' => 3,
			'Fire' => 0,
			'Water' => 0,
			'Grass' => 0,
			'Electric' => 0,
			'Ice' => 0,
			'Fighting' => 3,
			'Poison' => 2,
			'Ground' => 0,
			'Flying' => 0,
			'Psychic' => 0,
			'Bug' => 2,
			'Rock' => 0,
			'Ghost' => 1,
			'Dragon' => 0,
			'Dark' => 1,
			'Steel' => 0,
		)
	),
	'Dragon' => array(
		'damageTaken' => array(
			'Normal' => 0,
			'Fire' => 2,
			'Water' => 2,
			'Grass' => 2,
			'Electric' => 2,
			'Ice' => 1,
			'Fighting' => 0,
			'Poison' => 0,
			'Ground' => 0,
			'Flying' => 0,
			'Psychic' => 0,
			'Bug' => 0,
			'Rock' => 0,
			'Ghost' => 0,
			'Dragon' => 1,
			'Dark' => 0,
			'Steel' => 0,
		)
	),
	'Dark' => array(
		'damageTaken' => array(
			'Normal' => 0,
			'Fire' => 0,
			'Water' => 0,
			'Grass' => 0,
			'Electric' => 0,
			'Ice' => 0,
			'Fighting' => 1,
			'Poison' => 0,
			'Ground' => 0,
			'Flying' => 0,
			'Psychic' => 3,
			'Bug' => 1,
			'Rock' => 0,
			'Ghost' => 2,
			'Dragon' => 0,
			'Dark' => 2,
			'Steel' => 0,
		)
	),
	'Steel' => array(
		'damageTaken' => array(
			'Normal' => 2,
			'Fire' => 1,
			'Water' => 0,
			'Grass' => 2,
			'Electric' => 0,
			'Ice' => 2,
			'Fighting' => 1,
			'Poison' => 3,
			'Ground' => 1,
			'Flying' => 2,
			'Psychic' => 2,
			'Bug' => 2,
			'Rock' => 2,
			'Ghost' => 2,
			'Dragon' => 2,
			'Dark' => 2,
			'Steel' => 2,
		)
	),
);

function getDamageTaken($attacking, $defending, $defending2=false)
{
	global $PokemonTypeDamage, $PokemonTypeChart;
	$damage = 1;
	//	var_export($defending);
	if ($defending['types'])
	{
		$defending2 = $defending['types'][1];
		$defending = $defending['types'][0];
	}
	if ($defending) $damage *= $PokemonTypeDamage[$PokemonTypeChart[$defending]['damageTaken'][$attacking]];
	if ($defending2) $damage *= $PokemonTypeDamage[$PokemonTypeChart[$defending2]['damageTaken'][$attacking]];
	return $damage;
}