User:Irgendwer/Damage calculator
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Implementations of the Guild Wars damage calculation.
damage.c[edit]
/* damage.c
A calculator for Guild Wars skill and attack damage. Based on the
information at http://wiki.guildwars.com/wiki/Damage_calculation.
Syntax is as follows.
To calculate skill damage:
damage s dmg [-l level] [-a armor] [-p ap]
dmg: the damage inflicted by the skill at the caster's
level in the relevant attribute.
level: the caster's level. Defaults to 20.
armor: the target's armor. Defaults to 60.
ap: the amount of armor penetration affecting the
skill. Defaults to 0.
To calculate base attack damage:
damage a min max mastery [-a armor] [-m mod] [-p ap]
min: the weapon's minimum base damage.
max: the weapon's maximum base damage.
mastery: the wielder's level in the relevant attribute.
armor: the target's armor. Defaults to 60.
mod: the percentage to which the weapon's damage is
modified. Defaults to 1.38 (i.e. customization
and +15% modifier).
ap: the amount of armor penetration affecting the
skill. Defaults to 0.
Armor-ignoring damage does not use these calculations as neither
caster level nor armor affects it.
Guild Wars is a trademark of NCsoft Corporation.
Coded by Irgendwer 6/10.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
void showSyntax();
void calcSkill( int argc, char * argv[] );
void calcAttack( int argc, char * argv[] );
int main( int argc, char * argv[] )
{
if ( argc < 3 )
showSyntax();
else
{
if ( !strcmp( argv[ 1 ], "s" ) )
calcSkill( argc, argv );
else if ( !strcmp( argv[ 1 ], "a" ) )
calcAttack( argc, argv );
else
showSyntax();
}
return 0;
}
void calcSkill( int argc, char * argv[] )
{
double dmg = atoi( argv[ 2 ] );
double level = 20;
double armor = 60;
double ap = 0;
int fail = dmg == 0;
int i;
for ( i = 3; i < argc && !fail; i++ )
{
char * arg = argv[ i ];
if ( !strcmp( arg, "-l" ) ||
!strcmp( arg, "-a" ) ||
!strcmp( arg, "-p" ) )
{
if ( argc < i + 1 )
{
printf( "missing value after %s\n", arg );
fail = 1;
}
else
{
if ( !strcmp( arg, "-l" ) )
level = atof( argv[ i + 1 ] );
else if ( !strcmp( arg, "-a" ) )
armor = atof( argv[ i + 1 ] );
else if ( !strcmp( arg, "-p" ) )
ap = atof( argv[ i + 1 ] );
i++;
}
}
else
{
printf( "invalid flag: %s\n", arg );
fail = 1;
}
}
if ( !fail )
{
double result = dmg * pow( 2, ( 3 * level - 60 ) / 40 ) *
pow( 2, ( 60 - ( 1 - ap ) * armor ) / 40 );
printf( "%.1f\n", result );
}
else
showSyntax();
}
void calcAttack( int argc, char * argv[] )
{
double min = atoi( argv[ 2 ] );
double max;
int mastery;
double armor = 60;
double ap = 0;
double mod = 1.38;
int fail = min == 0;
int i;
if ( argc < 5 )
fail = 1;
else
{
max = atof( argv[ 3 ] );
fail *= max == 0;
mastery = atoi( argv[ 4 ] );
fail *= mastery == 0;
}
for ( i = 5; i < argc && !fail; i++ )
{
char * arg = argv[ i ];
if ( !strcmp( arg, "-m" ) ||
!strcmp( arg, "-a" ) ||
!strcmp( arg, "-p" ) )
{
if ( argc < i + 1 )
{
printf( "missing value after %s\n", arg );
fail = 1;
}
else
{
if ( !strcmp( arg, "-m" ) )
mod = atof( argv[ i + 1 ] );
else if ( !strcmp( arg, "-a" ) )
armor = atof( argv[ i + 1 ] );
else if ( !strcmp( arg, "-p" ) )
ap = atof( argv[ i + 1 ] );
i++;
}
}
else
{
printf( "invalid flag: %s\n", arg );
fail = 1;
}
}
if ( !fail )
{
double attr;
if ( mastery <= 12 )
attr = mastery * 5;
else
attr = 60 + ( mastery - 12 ) * 2;
double result = mod * pow( 2, ( attr - 60 ) / 40 ) *
pow( 2, ( 60 - ( 1 - ap ) * armor ) / 40 );
printf( "min: %.1f\n", min * result );
printf( "max: %.1f\n", max * result );
printf( "crit: %.1f\n", max * result * sqrt( 2 ) );
}
else
showSyntax();
}
void showSyntax()
{
printf( "usage: damage s dmg [-l level] [-a armor] [-p ap]\n" );
printf( " damage a min max mastery [-a armor] [-m mod] [-p ap]\n" );
}
damage.html[edit]
<html>
<head>
<style type="text/css">
table
{
font-family:arial;
font-size:14px;
}
</style>
<title>Damage calculator</title>
</head>
<body>
<form>
<table>
<tbody>
<tr>
<th colspan="2">Attack damage</th>
<td style="width: 10%;"></td>
<th colspan="2">Skill damage</th>
</tr>
<tr>
<td>Min. damage:</td>
<td><input tabindex="1" id="attMinDmg" size="5" onchange="calcAttack()"></td>
<td></td>
<td>Damage:</td>
<td><input tabindex="10" id="skillDmg" size="5" onchange="calcSkill()"></td>
</tr>
<tr>
<td>Max. damage:</td>
<td><input tabindex="2" id="attMaxDmg" size="5" onchange="calcAttack()"></td>
<td></td>
<td>Caster level:</td>
<td><input tabindex="11" id="skillLevel" size="5" onchange="calcSkill()"></td>
</tr>
<tr>
<td>Attribute level:</td>
<td><input tabindex="3" id="attAttr" size="5" onchange="calcAttack()"></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td>Modifier:</td>
<td><input tabindex="4" id="attMod" size="5" onchange="calcAttack()"></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td>Target armor:</td>
<td><input tabindex="5" id="attArmor" size="5" onchange="calcAttack()"></td>
<td></td>
<td>Target armor:</td>
<td><input tabindex="12" id="skillArmor" size="5" onchange="calcSkill()"></td>
</tr>
<tr>
<td>Armor penetration:</td>
<td><input tabindex="6" id="attAP" size="5" onchange="calcAttack()"></td>
<td></td>
<td>Armor penetration:</td>
<td><input tabindex="13" id="skillAP" size="5" onchange="calcSkill()"></td>
</tr>
<tr>
<td colspan="5"><hr /></td>
</tr>
<tr>
<td>Min. damage:</td>
<td><input tabindex="7" id="attResultMin" size="5" readonly="readonly" type="text"></td>
<td></td>
<td>Damage:</td>
<td><input tabindex="14" id="skillResult" size="5" readonly="readonly" type="text"></td>
</tr>
<tr>
<td>Max. damage:</td>
<td><input tabindex="8" id="attResultMax" size="5" readonly="readonly" type="text"></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td>Critical damage:</td>
<td><input tabindex="9" id="attResultCrit" size="5" readonly="readonly" type="text"></td>
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>
</form>
<script type="text/javascript">
function calcAttack()
{
var max=document.getElementById('attMaxDmg').value;
var min=document.getElementById('attMinDmg').value;
var attr=document.getElementById('attAttr').value;
var mod=document.getElementById('attMod').value;
var armor=document.getElementById('attArmor').value;
var ap=document.getElementById('attAP').value;
var attr1;
if (attr<=12)
{
attr1=attr*5;
}
else
{
attr1=60+(attr-12)*2;
}
var min1=Math.round(100*min*mod*Math.pow(2,(attr1-60)/40)*Math.pow(2,(60-(1-ap)*armor)/40))/100;
var max1=Math.round(100*max*mod*Math.pow(2,(attr1-60)/40)*Math.pow(2,(60-(1-ap)*armor)/40))/100;
var crit=Math.round(100*max1*Math.sqrt(2))/100;
document.getElementById('attResultMin').value=min1;
document.getElementById('attResultMax').value=max1;
document.getElementById('attResultCrit').value=crit;
}
function calcSkill()
{
var dmg=document.getElementById('skillDmg').value;
var lvl=document.getElementById('skillLevel').value;
var armor=document.getElementById('skillArmor').value;
var ap=document.getElementById('skillAP').value;
var dmg1=Math.round(100*dmg*Math.pow(2,(3*lvl-60)/40)*Math.pow(2,(60-(1-ap)*armor)/40))/100;
document.getElementById('skillResult').value=dmg1;
}
</script>
</body>
</html>
