internal float GetSpellMinRangeForTarget(Unit target, SpellInfo spellInfo)
{
if (Mathf.Approximately(spellInfo.MinRangeFriend, spellInfo.MinRangeHostile))
{
return(spellInfo.GetMinRange(false));
}
if (target == null)
{
return(spellInfo.GetMinRange(true));
}
return(spellInfo.GetMinRange(!unit.IsHostileTo(target)));
}
private SpellCastResult ValidateRange()
{
if (spellCastFlags.HasTargetFlag(SpellCastFlags.IgnoreRangeCheck))
{
return(SpellCastResult.Success);
}
switch (SpellInfo.ExplicitTargetType)
{
case SpellExplicitTargetType.None:
return(SpellCastResult.Success);
case SpellExplicitTargetType.Caster:
return(SpellCastResult.Success);
case SpellExplicitTargetType.Target:
return(ValidateTargetRange());
case SpellExplicitTargetType.Destination:
return(ValidateDestinationRange());
default:
throw new ArgumentOutOfRangeException();
}
SpellCastResult ValidateTargetRange()
{
if (ExplicitTargets.Target == null || ExplicitTargets.Target == Caster)
{
return(SpellCastResult.Success);
}
Unit target = ExplicitTargets.Target;
float minRange = 0.0f;
float maxRange = 0.0f;
float rangeMod = 0.0f;
if (SpellInfo.RangedFlags.HasTargetFlag(SpellRangeFlags.Melee))
{
rangeMod = StatUtils.NominalMeleeRange;
}
else
{
float meleeRange = 0.0f;
if (SpellInfo.RangedFlags.HasTargetFlag(SpellRangeFlags.Ranged))
{
meleeRange = StatUtils.MinMeleeReach;
}
minRange = Caster.Spells.GetSpellMinRangeForTarget(target, SpellInfo) + meleeRange;
maxRange = Caster.Spells.GetSpellMaxRangeForTarget(target, SpellInfo);
}
maxRange += rangeMod;
if (Vector3.Distance(Caster.Position, target.Position) > maxRange)
{
return(SpellCastResult.OutOfRange);
}
if (minRange > 0.0f && Vector3.Distance(Caster.Position, target.Position) < minRange)
{
return(SpellCastResult.OutOfRange);
}
return(SpellCastResult.Success);
}
SpellCastResult ValidateDestinationRange()
{
if (!ExplicitTargets.Destination.HasValue)
{
return(SpellCastResult.BadTargets);
}
Vector3 targetPosition = ExplicitTargets.Destination.Value;
float minRange = SpellInfo.GetMinRange(false);
float maxRange = SpellInfo.GetMaxRange(false);
if (Vector3.Distance(Caster.Position, targetPosition) > maxRange)
{
return(SpellCastResult.OutOfRange);
}
if (minRange > 0.0f && Vector3.Distance(Caster.Position, targetPosition) < minRange)
{
return(SpellCastResult.OutOfRange);
}
return(SpellCastResult.Success);
}
}
