Capping the value

Capping the value

本文关键字：value the Capping      更新时间：2023-10-16

我有一个小脚本，它定义了这个小项目中所有类的转换时间，但我有一些问题。

我想在最大值上设置上限，但是我遇到了错误！

这就是我所指的功能。

void Player::ApplyRatingMod(CombatRating combatRating, int32 value, bool apply)
{
float oldRating = m_baseRatingValue[combatRating];
m_baseRatingValue[combatRating] += (apply ? value : -value);
// explicit affected values
float const multiplier = GetRatingMultiplier(combatRating);
float const oldVal = oldRating * multiplier;
float const newVal = m_baseRatingValue[combatRating] * multiplier;
switch (combatRating)
{
case CR_HASTE_MELEE:
ApplyAttackTimePercentMod(BASE_ATTACK, oldVal, false);
ApplyAttackTimePercentMod(OFF_ATTACK, oldVal, false);
ApplyAttackTimePercentMod(BASE_ATTACK, newVal, true);
ApplyAttackTimePercentMod(OFF_ATTACK, newVal, true);
break;
case CR_HASTE_RANGED:
ApplyAttackTimePercentMod(RANGED_ATTACK, oldVal, false);
ApplyAttackTimePercentMod(RANGED_ATTACK, newVal, true);
break;
case CR_HASTE_SPELL:
//ApplyCastTimePercentMod(oldVal, false);
//ApplyCastTimePercentMod(newVal, true);
break;
default:
break;
}
UpdateRating(combatRating);
}
void Player::UpdateRating(CombatRating cr)
{
int32 amount = m_baseRatingValue[cr];
// Apply bonus from SPELL_AURA_MOD_RATING_FROM_STAT
// stat used stored in miscValueB for this aura
AuraEffectList const& modRatingFromStat = GetAuraEffectsByType(SPELL_AURA_MOD_RATING_FROM_STAT);
for (AuraEffect const* aurEff : modRatingFromStat)
if (aurEff->GetMiscValue() & (1 << cr))
amount += int32(CalculatePct(GetStat(Stats(aurEff->GetMiscValueB())), aurEff->GetAmount()));
if (amount < 0)
amount = 0;
SetUInt32Value(PLAYER_FIELD_COMBAT_RATING_1 + cr, uint32(amount));
bool affectStats = CanModifyStats();
switch (cr)
{
case CR_WEAPON_SKILL:                               // Implemented in Unit::RollMeleeOutcomeAgainst
case CR_DEFENSE_SKILL:
UpdateDefenseBonusesMod();
break;
case CR_DODGE:
UpdateDodgePercentage();
break;
case CR_PARRY:
UpdateParryPercentage();
break;
case CR_BLOCK:
UpdateBlockPercentage();
break;
case CR_HIT_MELEE:
UpdateMeleeHitChances();
break;
case CR_HIT_RANGED:
UpdateRangedHitChances();
break;
case CR_HIT_SPELL:
UpdateSpellHitChances();
break;
case CR_CRIT_MELEE:
if (affectStats)
{
UpdateCritPercentage(BASE_ATTACK);
UpdateCritPercentage(OFF_ATTACK);
}
break;
case CR_CRIT_RANGED:
if (affectStats)
UpdateCritPercentage(RANGED_ATTACK);
break;
case CR_CRIT_SPELL:
if (affectStats)
UpdateAllSpellCritChances();
break;
case CR_HIT_TAKEN_MELEE:                            // Implemented in Unit::MeleeMissChanceCalc
case CR_HIT_TAKEN_RANGED:
break;
case CR_HIT_TAKEN_SPELL:                            // Implemented in Unit::MagicSpellHitResult
break;
case CR_CRIT_TAKEN_MELEE:                           // Implemented in Unit::RollMeleeOutcomeAgainst (only for chance to crit)
case CR_CRIT_TAKEN_RANGED:
break;
case CR_CRIT_TAKEN_SPELL:                           // Implemented in Unit::SpellCriticalBonus (only for chance to crit)
break;
case CR_HASTE_MELEE:                                // Implemented in Player::ApplyRatingMod
case CR_HASTE_RANGED:
case CR_HASTE_SPELL:
break;
case CR_WEAPON_SKILL_MAINHAND:                      // Implemented in Unit::RollMeleeOutcomeAgainst
case CR_WEAPON_SKILL_OFFHAND:
case CR_WEAPON_SKILL_RANGED:
break;
case CR_EXPERTISE:
if (affectStats)
{
UpdateExpertise(BASE_ATTACK);
UpdateExpertise(OFF_ATTACK);
}
break;
case CR_ARMOR_PENETRATION:
if (affectStats)
UpdateArmorPenetration(amount);
break;
}
}
void Player::UpdateAllRatings()
{
for (uint8 cr = 0; cr < MAX_COMBAT_RATING; ++cr)
UpdateRating(CombatRating(cr));
}

您可以注意到我如何将新值结果限制为 32000。 在它被计算成百分比之前！

我试过使用 if(newVal> 32000( 新瓦尔 = 32000;

我猜这通常会完成工作，但我被一个错误困住了 E0137 表达式必须是可修改的左值

在线上 newVal = 32000;

从newVal中删除const限定符

float newVal = m_baseRatingValue[combatRating] * multiplier;

您将newVal声明为常量 (float const newVal = ...(，因此不允许分配新值。

删除const应该适合您，例如

float newVal = m_baseRatingValue[combatRating] * multiplier;
if (newVal > 32000)
newVal = 32000;
...
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