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cuberite-2a/src/Items/ItemThrowable.h

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// Declares the itemhandlers for throwable items: eggs, snowballs, ender pearls, and eyes of ender.
#pragma once
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class cItemThrowableHandler:
public cItemHandler
{
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using Super = cItemHandler;
public:
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cItemThrowableHandler(int a_ItemType, cProjectileEntity::eKind a_ProjectileKind, double a_SpeedCoeff):
Super(a_ItemType),
m_ProjectileKind(a_ProjectileKind),
m_SpeedCoeff(a_SpeedCoeff)
{
}
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virtual bool OnItemUse(
cWorld * a_World,
cPlayer * a_Player,
cBlockPluginInterface & a_PluginInterface,
const cItem & a_HeldItem,
const Vector3i a_ClickedBlockPos,
eBlockFace a_ClickedBlockFace
) override
{
auto Pos = a_Player->GetThrowStartPos();
auto Speed = a_Player->GetLookVector() * m_SpeedCoeff;
// Create the projectile:
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if (a_World->CreateProjectile(Pos.x, Pos.y, Pos.z, m_ProjectileKind, a_Player, &a_Player->GetEquippedItem(), &Speed) == cEntity::INVALID_ID)
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{
return false;
}
// Play sound:
a_World->BroadcastSoundEffect("entity.arrow.shoot", a_Player->GetPosition() - Vector3d(0, a_Player->GetHeight(), 0), 0.5f, 0.4f / GetRandomProvider().RandReal(0.8f, 1.2f));
// Remove from inventory
if (!a_Player->IsGameModeCreative())
{
a_Player->GetInventory().RemoveOneEquippedItem();
}
return true;
}
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protected:
/** The kind of projectile to create when shooting */
cProjectileEntity::eKind m_ProjectileKind;
/** The speed multiplier (to the player's normalized look vector) to set for the new projectile. */
double m_SpeedCoeff;
} ;
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class cItemEggHandler:
public cItemThrowableHandler
{
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using Super = cItemThrowableHandler;
public:
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cItemEggHandler():
Super(E_ITEM_EGG, cProjectileEntity::pkEgg, 30)
{
}
} ;
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class cItemSnowballHandler:
public cItemThrowableHandler
{
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using Super = cItemThrowableHandler;
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public:
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cItemSnowballHandler():
Super(E_ITEM_SNOWBALL, cProjectileEntity::pkSnowball, 30)
{
}
} ;
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class cItemEnderPearlHandler:
public cItemThrowableHandler
{
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using Super = cItemThrowableHandler;
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public:
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cItemEnderPearlHandler():
Super(E_ITEM_ENDER_PEARL, cProjectileEntity::pkEnderPearl, 30)
{
}
} ;
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class cItemBottleOEnchantingHandler:
public cItemThrowableHandler
{
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using Super = cItemThrowableHandler;
public:
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cItemBottleOEnchantingHandler():
Super(E_ITEM_BOTTLE_O_ENCHANTING, cProjectileEntity::pkExpBottle, 14)
{
}
};
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class cItemFireworkHandler:
public cItemThrowableHandler
{
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using Super = cItemThrowableHandler;
public:
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cItemFireworkHandler():
Super(E_ITEM_FIREWORK_ROCKET, cProjectileEntity::pkFirework, 0)
{
}
virtual bool OnItemUse(
cWorld * a_World,
cPlayer * a_Player,
cBlockPluginInterface & a_PluginInterface,
const cItem & a_HeldItem,
const Vector3i a_ClickedBlockPos,
eBlockFace a_ClickedBlockFace
) override
{
if (a_World->GetBlock(a_ClickedBlockPos) == E_BLOCK_AIR)
{
return false;
}
if (a_World->CreateProjectile(Vector3d(a_ClickedBlockPos) + Vector3d(0.5, 1, 0.5), m_ProjectileKind, a_Player, &a_Player->GetEquippedItem()) == 0)
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{
return false;
}
if (!a_Player->IsGameModeCreative())
{
a_Player->GetInventory().RemoveOneEquippedItem();
}
return true;
}
};