ItemThrowable.h

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// Declares the itemhandlers for throwable items: eggs, snowballs, ender pearls, and eyes of ender.

#pragma once





class cItemThrowableHandler :
    public cItemHandler
{
    typedef cItemHandler super;
public:
    cItemThrowableHandler(int a_ItemType, cProjectileEntity::eKind a_ProjectileKind, double a_SpeedCoeff) :
        super(a_ItemType),
        m_ProjectileKind(a_ProjectileKind),
        m_SpeedCoeff(a_SpeedCoeff)
    {
    }



    virtual bool OnItemUse(
        cWorld * a_World, cPlayer * a_Player, cBlockPluginInterface & a_PluginInterface, const cItem & a_Item,
        int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_BlockFace
    ) override
    {
        Vector3d Pos = a_Player->GetThrowStartPos();
        Vector3d Speed = a_Player->GetLookVector() * m_SpeedCoeff;

        // 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));

        if (a_World->CreateProjectile(Pos.x, Pos.y, Pos.z, m_ProjectileKind, a_Player, &a_Player->GetEquippedItem(), &Speed) == cEntity::INVALID_ID)
        {
            return false;
        }

        if (!a_Player->IsGameModeCreative())
        {
            a_Player->GetInventory().RemoveOneEquippedItem();
        }

        return true;
    }

protected:
    cProjectileEntity::eKind m_ProjectileKind;
    double m_SpeedCoeff;
} ;





class cItemEggHandler :
    public cItemThrowableHandler
{
    typedef cItemThrowableHandler super;
public:
    cItemEggHandler(void) :
        super(E_ITEM_EGG, cProjectileEntity::pkEgg, 30)
    {
    }
} ;




class cItemSnowballHandler :
    public cItemThrowableHandler
{
    typedef cItemThrowableHandler super;

public:
    cItemSnowballHandler(void) :
        super(E_ITEM_SNOWBALL, cProjectileEntity::pkSnowball, 30)
    {
    }
} ;





class cItemEnderPearlHandler :
    public cItemThrowableHandler
{
    typedef cItemThrowableHandler super;

public:
    cItemEnderPearlHandler(void) :
        super(E_ITEM_ENDER_PEARL, cProjectileEntity::pkEnderPearl, 30)
    {
    }
} ;





class cItemBottleOEnchantingHandler :
    public cItemThrowableHandler
{
    typedef cItemThrowableHandler super;
public:
    cItemBottleOEnchantingHandler(void) :
        super(E_ITEM_BOTTLE_O_ENCHANTING, cProjectileEntity::pkExpBottle, 10)
    {
    }
};





class cItemFireworkHandler :
    public cItemThrowableHandler
{
    typedef cItemThrowableHandler super;
public:
    cItemFireworkHandler(void) :
        super(E_ITEM_FIREWORK_ROCKET, cProjectileEntity::pkFirework, 0)
    {
    }



    virtual bool OnItemUse(
        cWorld * a_World, cPlayer * a_Player, cBlockPluginInterface & a_PluginInterface, const cItem & a_Item,
        int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_BlockFace
    ) override
    {
        if (a_World->GetBlock(a_BlockX, a_BlockY, a_BlockZ) == E_BLOCK_AIR)
        {
            return false;
        }

        if (a_World->CreateProjectile(a_BlockX + 0.5, a_BlockY + 1, a_BlockZ + 0.5, m_ProjectileKind, a_Player, &a_Player->GetEquippedItem()) == 0)
        {
            return false;
        }

        if (!a_Player->IsGameModeCreative())
        {
            a_Player->GetInventory().RemoveOneEquippedItem();
        }

        return true;
    }

};