[sorvani]

Working on my test server. unified diff sent to gaeorn.

int Mob::CalcSpellEffectValue(int16 spell_id, int effect_id, int caster_level, Mob *caster, int ticsremaining)
{
	int formula, base, max, effect_value;

	if
	(
		!IsValidSpell(spell_id) ||
		effect_id < 0 ||
		effect_id >= EFFECT_COUNT
	)
		return 0;

	formula = spells[spell_id].formula[effect_id];
	base = spells[spell_id].base[effect_id];
	max = spells[spell_id].max[effect_id];

	if(IsBlankSpellEffect(spell_id, effect_id))
		return 0;

	effect_value = CalcSpellEffectValue_formula(formula, base, max, caster_level, spell_id, ticsremaining);

	if(caster && IsBardSong(spell_id) &&
	(spells[spell_id].effectid[effect_id] != SE_AttackSpeed) &&
	(spells[spell_id].effectid[effect_id] != SE_AttackSpeed2) &&
	(spells[spell_id].effectid[effect_id] != SE_AttackSpeed3) &&
	(spells[spell_id].effectid[effect_id] != SE_Lull) &&
	(spells[spell_id].effectid[effect_id] != SE_ChangeFrenzyRad) &&
	(spells[spell_id].effectid[effect_id] != SE_Harmony)) {
		int oval = effect_value;
		int mod = caster->GetInstrumentMod(spell_id);
		effect_value = effect_value * mod / 10;
		mlog(SPELLS__BARDS, "Effect value %d altered with bard modifier of %d to yeild %d", oval, mod, effect_value);
	}

	return(effect_value);
}