Formula (Runes/Spells)

[Exura ATS]

Hey guys, it's me again.

Today I was making some tests on my otserver's runes, and I've got a problem with the line:

setCombatFormula(combat, COMBAT_FORMULA_LEVELMAGIC, -1, 0, -1, -10, 5, 5, 1.2, 2, -20, -40)

I want to make some changes on this formula. But, first I'll need to understand what those values represent.
So, does someone know and can explain me how this line works?

 

[miens]

Lua - Understanding Spell Formulas

 

[Marcus]

Hey guys, it's me again.

Today I was making some tests on my otserver's runes, and I've got a problem with the line:

setCombatFormula(combat, COMBAT_FORMULA_LEVELMAGIC, -1, 0, -1, -10, 5, 5, 1.2, 2, -20, -40)

I want to make some changes on this formula. But, first I'll need to understand what those values represent.
So, does someone know and can explain me how this line works?

There's an easier way of doing it:

setCombatCallback(combat, CALLBACK_PARAM_LEVELMAGICVALUE, "onGetFormulaValues")

and use:

function onGetFormulaValues(cid, level, maglevel)
   min = -(level * 0.25 + maglevel * 0.85)
   max = -(level * 0.30 + maglevel * 1.7)
   return min, max
end

This is a HMM Rune:

local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_TARGETCASTERORTOPMOST, true)
setCombatParam(combat, COMBAT_PARAM_TYPE, COMBAT_ENERGYDAMAGE)
setCombatParam(combat, COMBAT_PARAM_EFFECT, CONST_ME_ENERGYHIT)
setCombatParam(combat, COMBAT_PARAM_DISTANCEEFFECT, CONST_ANI_ENERGYBALL)

function onGetFormulaValues(cid, level, maglevel)
    min = -(level * 0.25 + maglevel * 0.85)
    max = -(level * 0.30 + maglevel * 1.7)
    return min, max
end

setCombatCallback(combat, CALLBACK_PARAM_LEVELMAGICVALUE, "onGetFormulaValues")

function onCastSpell(cid, var)
    return doCombat(cid, combat, var)
end

And this is an UH Rune:

local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_TYPE, COMBAT_HEALING)
setCombatParam(combat, COMBAT_PARAM_EFFECT, CONST_ME_MAGIC_BLUE)
setCombatParam(combat, COMBAT_PARAM_AGGRESSIVE, false)
setCombatParam(combat, COMBAT_PARAM_TARGETCASTERORTOPMOST, true)
setCombatParam(combat, COMBAT_PARAM_DISPEL, CONDITION_PARALYZE)

function onGetFormulaValues(cid, level, maglevel)
    min = (level * 0.62 + maglevel * 7.72)
    max = (level * 1.1 + maglevel * 13.30)
    return min, max
end

setCombatCallback(combat, CALLBACK_PARAM_LEVELMAGICVALUE, "onGetFormulaValues")

function onCastSpell(cid, var)
    return doCombat(cid, combat, var)
end

Using that way, it's a lot easier to read and edit