/// <summary>
/// Applies the elemental effects of a players skill to the target.
/// </summary>
/// <param name="target">The target.</param>
/// <param name="player">The player.</param>
/// <param name="skillEntry">The skill entry.</param>
/// <returns>The success of the appliance.</returns>
public static bool TryApplyElementalEffects(this IAttackable target, Player player, SkillEntry skillEntry)
{
skillEntry.ThrowNotInitializedProperty(skillEntry.Skill is null, nameof(skillEntry.Skill));
var modifier = skillEntry.Skill.ElementalModifierTarget;
if (modifier is null)
{
return(false);
}
var resistance = target.Attributes[modifier];
if (resistance >= 1.0f || !Rand.NextRandomBool(1.0f - resistance))
{
return(false);
}
var applied = false;
if (skillEntry.Skill.MagicEffectDef is { } effectDefinition &&
!target.MagicEffectList.ActiveEffects.ContainsKey(effectDefinition.Number))
{
// power-up is the wrong term here... it's more like a power-down ;-)
target.ApplyMagicEffect(player, skillEntry);
applied = true;
}
if (modifier == Stats.LightningResistance)
{
target.MoveRandomly();
applied = true;
}
return(applied);
}
/// <summary>
/// Applies the elemental effects of a players skill to the target.
/// </summary>
/// <param name="target">The target.</param>
/// <param name="player">The player.</param>
/// <param name="skillEntry">The skill entry.</param>
public static void ApplyElementalEffects(this IAttackable target, Player player, SkillEntry skillEntry)
{
var modifier = skillEntry.Skill.ElementalModifierTarget;
if (modifier == null)
{
return;
}
var resistance = target.Attributes[modifier];
if (resistance >= 1.0f)
{
return;
}
if (Rand.NextRandomBool(1.0f - resistance))
{
// power-up is the wrong term here... it's more like a power-down ;-)
if (skillEntry.Skill.MagicEffectDef != null)
{
target.ApplyMagicEffect(player, skillEntry);
}
if (modifier == Stats.LightningResistance)
{
target.MoveRandomly();
}
}
}
/// <summary>
/// Gets the hit information, calculates which part of the damage damages the shield and which the health.
/// </summary>
/// <param name="defender">The defender.</param>
/// <param name="damage">The damage.</param>
/// <param name="attributes">The attributes.</param>
/// <param name="attacker">The attacker.</param>
/// <returns>The calculated hit info.</returns>
public static HitInfo GetHitInfo(this IAttackable defender, uint damage, DamageAttributes attributes, IAttackable attacker)
{
var shieldBypass = Rand.NextRandomBool(attacker.Attributes[Stats.ShieldBypassChance]);
if (shieldBypass || defender.Attributes[Stats.CurrentShield] < 1)
{
return(new HitInfo(damage, 0, attributes));
}
var shieldRatio = 0.90;
shieldRatio -= attacker.Attributes[Stats.ShieldDecreaseRateIncrease];
shieldRatio += defender.Attributes[Stats.ShieldRateIncrease];
shieldRatio = Math.Max(0, shieldRatio);
shieldRatio = Math.Min(1, shieldRatio);
return(new HitInfo((uint)(damage * (1 - shieldRatio)), (uint)(damage * shieldRatio), attributes));
}
/// <summary>
/// Calculates the damage, using a skill.
/// </summary>
/// <param name="attacker">The object which is attacking.</param>
/// <param name="defender">The object which is defending.</param>
/// <param name="skill">The skill which is used.</param>
/// <returns>The hit information.</returns>
public static HitInfo CalculateDamage(this IAttackable attacker, IAttackable defender, SkillEntry skill)
{
if (!attacker.IsAttackSuccessfulTo(defender))
{
return(new HitInfo(0, 0, DamageAttributes.Undefined));
}
DamageAttributes attributes = DamageAttributes.Undefined;
bool isCriticalHit = Rand.NextRandomBool(attacker.Attributes[Stats.CriticalDamageChance]);
bool isExcellentHit = Rand.NextRandomBool(attacker.Attributes[Stats.ExcellentDamageChance]);
bool isIgnoringDefense = Rand.NextRandomBool(attacker.Attributes[Stats.DefenseIgnoreChance]);
attacker.GetBaseDmg(skill, out int baseMinDamage, out int baseMaxDamage);
int dmg;
if (isExcellentHit)
{
dmg = (int)(baseMaxDamage * 1.2);
attributes |= DamageAttributes.Excellent;
}
else if (isCriticalHit)
{
dmg = baseMaxDamage;
attributes |= DamageAttributes.Critical;
}
else if (baseMaxDamage <= baseMinDamage)
{
dmg = baseMinDamage;
}
else
{
dmg = Rand.NextInt(baseMinDamage, baseMaxDamage);
}
if (!isIgnoringDefense)
{
var defenseAttribute = GetDefenseAttribute(attacker);
dmg -= (int)defender.Attributes[defenseAttribute];
attributes |= DamageAttributes.IgnoreDefense;
}
dmg = Math.Max(dmg, 0);
dmg = (int)(dmg * defender.Attributes[Stats.DamageReceiveDecrement]);
dmg = (int)(dmg * attacker.Attributes[Stats.AttackDamageIncrease]);
if (skill != null)
{
dmg = (int)(dmg * attacker.Attributes[Stats.SkillMultiplier]);
}
bool isDoubleDamage = Rand.NextRandomBool(attacker.Attributes[Stats.DoubleDamageChance]);
if (isDoubleDamage)
{
dmg *= 2;
attributes |= DamageAttributes.Double;
}
// now we have the final damage calculated. We have to calculate which part of the damage damages the shield and which the health.
HitInfo hi;
var shieldBypass = Rand.NextRandomBool(attacker.Attributes[Stats.ShieldBypassChance]);
if (shieldBypass || defender.Attributes[Stats.CurrentShield] < 1)
{
hi = new HitInfo((uint)dmg, 0, 0);
}
else
{
var shieldRatio = 0.90;
shieldRatio -= attacker.Attributes[Stats.ShieldDecreaseRateIncrease];
shieldRatio += defender.Attributes[Stats.ShieldRateIncrease];
shieldRatio = Math.Max(0, shieldRatio);
shieldRatio = Math.Min(1, shieldRatio);
hi = new HitInfo((uint)(dmg * (1 - shieldRatio)), (uint)(dmg * shieldRatio), attributes);
}
return(hi);
}
private static bool IsAttackSuccessfulTo(this IAttackable attacker, IAttackable defender)
{
var hitChance = attacker.GetHitChanceTo(defender);
return(Rand.NextRandomBool(hitChance));
}
/// <summary>
/// Calculates the damage, using a skill.
/// </summary>
/// <param name="attacker">The object which is attacking.</param>
/// <param name="defender">The object which is defending.</param>
/// <param name="skill">The skill which is used.</param>
/// <returns>The hit information.</returns>
public static HitInfo CalculateDamage(this IAttackable attacker, IAttackable defender, SkillEntry skill)
{
if (!attacker.IsAttackSuccessfulTo(defender))
{
return(new HitInfo(0, 0, DamageAttributes.Undefined));
}
DamageAttributes attributes = DamageAttributes.Undefined;
bool isCriticalHit = Rand.NextRandomBool(attacker.Attributes[Stats.CriticalDamageChance]);
bool isExcellentHit = Rand.NextRandomBool(attacker.Attributes[Stats.ExcellentDamageChance]);
bool isIgnoringDefense = Rand.NextRandomBool(attacker.Attributes[Stats.DefenseIgnoreChance]);
attacker.GetBaseDmg(skill, out int baseMinDamage, out int baseMaxDamage);
int dmg;
if (isExcellentHit)
{
dmg = (int)(baseMaxDamage * 1.2);
attributes |= DamageAttributes.Excellent;
}
else if (isCriticalHit)
{
dmg = baseMaxDamage;
attributes |= DamageAttributes.Critical;
}
else if (baseMaxDamage <= baseMinDamage)
{
dmg = baseMinDamage;
}
else
{
dmg = Rand.NextInt(baseMinDamage, baseMaxDamage);
}
if (!isIgnoringDefense)
{
var defenseAttribute = defender.GetDefenseAttribute(attacker);
var defense = (int)defender.Attributes[defenseAttribute];
if (defender.Attributes[Stats.IsShieldEquipped] > 0)
{
defense += (int)(defense * defender.Attributes[Stats.DefenseIncreaseWithEquippedShield]);
}
dmg -= defense;
}
else
{
attributes |= DamageAttributes.IgnoreDefense;
}
dmg = Math.Max(dmg, 0);
dmg = (int)(dmg * defender.Attributes[Stats.DamageReceiveDecrement]);
dmg = (int)(dmg * attacker.Attributes[Stats.AttackDamageIncrease]);
if (skill != null)
{
dmg = dmg + (int)attacker.Attributes[Stats.SkillDamageBonus];
dmg = (int)(dmg * attacker.Attributes[Stats.SkillMultiplier]);
}
if (attacker.Attributes[Stats.IsTwoHandedWeaponEquipped] > 0)
{
dmg = (int)(dmg * attacker.Attributes[Stats.TwoHandedWeaponDamageIncrease]);
}
if (attacker is Player && defender is Player)
{
dmg += (int)attacker.Attributes[Stats.FinalDamageIncreasePvp];
}
bool isDoubleDamage = Rand.NextRandomBool(attacker.Attributes[Stats.DoubleDamageChance]);
if (isDoubleDamage)
{
dmg *= 2;
attributes |= DamageAttributes.Double;
}
var minimumDamage = attacker.Attributes[Stats.Level] / 10;
return(defender.GetHitInfo(Math.Max((uint)dmg, (uint)minimumDamage), attributes, attacker));
}
bool IRandomizer.NextRandomBool(double chance)
{
return(Rand.NextRandomBool(chance));
}
bool IRandomizer.NextRandomBool(int chance, int basis)
{
return(Rand.NextRandomBool(chance, basis));
}
bool IRandomizer.NextRandomBool(int percent)
{
return(Rand.NextRandomBool(percent));
}
bool IRandomizer.NextRandomBool()
{
return(Rand.NextRandomBool());
}