cEnchantments cEnchantments::SelectEnchantmentFromVector(const cWeightedEnchantments & a_Enchantments, int a_Seed)
{
// Sum up all the enchantments' weights:
int AllWeights = 0;
for (const auto Enchantment : a_Enchantments)
{
AllWeights += Enchantment.m_Weight;
}
// If there's no weight for any of the enchantments, return an empty enchantment
if (AllWeights <= 0)
{
return cEnchantments();
}
// Pick a random enchantment:
cNoise Noise(a_Seed);
int RandomNumber = Noise.IntNoise1DInt(AllWeights) / 7 % AllWeights;
for (const auto Enchantment : a_Enchantments)
{
RandomNumber -= Enchantment.m_Weight;
if (RandomNumber <= 0)
{
return Enchantment.m_Enchantments;
}
}
// No enchantment picked, return an empty one (we probably shouldn't ever get here):
return cEnchantments();
}
cProjectileEntity::cProjectileEntity(eKind a_Kind, cEntity * a_Creator, double a_X, double a_Y, double a_Z, double a_Width, double a_Height) :
super(etProjectile, a_X, a_Y, a_Z, a_Width, a_Height),
m_ProjectileKind(a_Kind),
m_CreatorData(
((a_Creator != nullptr) ? a_Creator->GetUniqueID() : -1),
((a_Creator != nullptr) ? (a_Creator->IsPlayer() ? ((cPlayer *)a_Creator)->GetName() : "") : ""),
((a_Creator != nullptr) ? a_Creator->GetEquippedWeapon().m_Enchantments : cEnchantments())
),
m_IsInGround(false)
{
}
cProjectileEntity::cProjectileEntity(eKind a_Kind, cEntity * a_Creator, double a_X, double a_Y, double a_Z, double a_Width, double a_Height) :
super(etProjectile, a_X, a_Y, a_Z, a_Width, a_Height),
m_ProjectileKind(a_Kind),
m_CreatorData(
((a_Creator != nullptr) ? a_Creator->GetUniqueID() : cEntity::INVALID_ID),
((a_Creator != nullptr) ? (a_Creator->IsPlayer() ? static_cast<cPlayer *>(a_Creator)->GetName() : "") : ""),
((a_Creator != nullptr) ? a_Creator->GetEquippedWeapon().m_Enchantments : cEnchantments())
),
m_IsInGround(false)
{
SetGravity(-12.0f);
SetAirDrag(0.01f);
}
cEnchantments cEnchantments::GetRandomEnchantmentFromVector(cWeightedEnchantments & a_Enchantments)
{
cFastRandom Random;
int AllWeights = 0;
for (cWeightedEnchantments::iterator it = a_Enchantments.begin(); it != a_Enchantments.end(); ++it)
{
AllWeights += (*it).m_Weight;
}
int RandomNumber = Random.GenerateRandomInteger(0, AllWeights - 1);
for (cWeightedEnchantments::iterator it = a_Enchantments.begin(); it != a_Enchantments.end(); ++it)
{
RandomNumber -= (*it).m_Weight;
if (RandomNumber < 0)
{
return (*it).m_Enchantments;
}
}
return cEnchantments();
}
