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[Rule] Legacy Compute Defense against modern agi based defense. (#4349)

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* [Rule] Legacy Compute Defense against modern agi based defense.

In new code, AGI becomes a large contributor to avoidance at low levels, since AGI isn't capped by Level but Defense is A scale factor is implemented for PCs to reduce the effect of AGI at low levels.  This isn't applied to NPCs since they can be easily controlled via the Database.

* `snake_case`

---------

Co-authored-by: Kinglykrab <kinglykrab@gmail.com>
This commit is contained in:
Fryguy
2024-05-26 20:27:18 -04:00
committed by GitHub
parent c50fda0f73
commit 992a5cc132
3 changed files with 60 additions and 22 deletions
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zone/tune.cpp
+28 -16
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@@ -1347,7 +1347,7 @@ int64 Mob::TuneGetTotalToHit(EQ::skills::SkillType skill, int chance_mod, int ac
hit_bonus += spellbonuses.increase_archery + aabonuses.increase_archery + itembonuses.increase_archery;
hit_bonus -= hit_bonus * RuleR(Combat, ArcheryHitPenalty);
}
accuracy = (accuracy * (100 + hit_bonus)) / 100;
return accuracy;
}
@@ -1381,31 +1381,43 @@ int64 Mob::TuneGetTotalDefense(int avoidance_override, int add_avoidance)
int64 Mob::Tunecompute_defense(int avoidance_override, int add_avoidance)
{
int defense = GetSkill(EQ::skills::SkillDefense) * 400 / 225;
defense += (8000 * (GetAGI() - 40)) / 36000;
if (IsOfClientBot()) {
if (avoidance_override) {
defense = avoidance_override;
// In new code, AGI becomes a large contributor to avoidance at low levels, since AGI isn't capped by Level but Defense is
// A scale factor is implemented for PCs to reduce the effect of AGI at low levels. This isn't applied to NPCs since they can be
// easily controlled via the Database.
if (RuleB(Combat, LegacyComputeDefense)) {
int agi_scale_factor = 1000;
if (IsOfClientBot()) {
agi_scale_factor = std::min(1000, static_cast<int>(GetLevel()) * 1000 / 70); // Scales Agi Contribution for PC's Level, max Contribution at Level 70
}
else {
defense += agi_scale_factor * (800 * (GetAGI() - 40)) / 3600 / 1000;
if (IsOfClientBot()) {
defense += GetHeroicAGI() / 10;
}
defense += itembonuses.AvoidMeleeChance * RuleI(Combat, PCAccuracyAvoidanceMod2Scale) / 100; // item mod2
} else {
defense += (8000 * (GetAGI() - 40)) / 36000;
if (IsOfClientBot()) {
defense += itembonuses.heroic_agi_avoidance;
}
defense += add_avoidance; //1 pt = 10 heroic agi
defense += itembonuses.AvoidMeleeChance; // item mod2
}
//516 SE_AC_Mitigation_Max_Percent
auto ac_bonus = itembonuses.AC_Mitigation_Max_Percent + aabonuses.AC_Mitigation_Max_Percent + spellbonuses.AC_Mitigation_Max_Percent;
if (ac_bonus)
if (ac_bonus) {
defense += round(static_cast<double>(defense) * static_cast<double>(ac_bonus) * 0.0001);
}
defense += itembonuses.AvoidMeleeChance; // item mod2
if (IsNPC()) {
if (avoidance_override) {
defense += avoidance_override;
}
else {
defense += CastToNPC()->GetAvoidanceRating();
}
defense += add_avoidance;
defense += CastToNPC()->GetAvoidanceRating();
}
if (IsClient()) {