ItemSpawnEgg.h

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#pragma once
 
#include "ItemHandler.h"
#include "../World.h"
#include "../Entities/Player.h"
 
 
 
 
 
class cItemSpawnEggHandler final:
    public cItemHandler
{
    using Super = cItemHandler;
 
public:
 
    using Super::Super;
 
    virtual bool OnItemUse(
        cWorld * a_World,
        cPlayer * a_Player,
        cBlockPluginInterface & a_PluginInterface,
        const cItem & a_HeldItem,
        const Vector3i a_ClickedBlockPos,
        eBlockFace a_ClickedBlockFace
    ) const override
    {
        // Must click a valid block:
        if (a_ClickedBlockFace < 0)
        {
            return false;
        }
 
        auto PlacementPos = AddFaceDirection(a_ClickedBlockPos, a_ClickedBlockFace);
        if (a_ClickedBlockFace == BLOCK_FACE_YM)
        {
            PlacementPos.y--;
        }
 
        auto MonsterType = ItemDamageToMonsterType(a_HeldItem.m_ItemDamage);
        if (
            (MonsterType != mtInvalidType) &&  // Valid monster type
            (a_World->SpawnMob(PlacementPos.x + 0.5, PlacementPos.y, PlacementPos.z + 0.5, MonsterType, false) != cEntity::INVALID_ID))  // Spawning succeeded
        {
            if (!a_Player->IsGameModeCreative())
            {
                // The mob was spawned, "use" the item:
                a_Player->GetInventory().RemoveOneEquippedItem();
            }
            return true;
        }
 
        return false;
    }
 
 
 
 
 
    static eMonsterType ItemDamageToMonsterType(short a_ItemDamage)
    {
        switch (a_ItemDamage)
        {
            case E_META_SPAWN_EGG_BAT:             return mtBat;
            case E_META_SPAWN_EGG_BLAZE:           return mtBlaze;
            case E_META_SPAWN_EGG_CAVE_SPIDER:     return mtCaveSpider;
            case E_META_SPAWN_EGG_CHICKEN:         return mtChicken;
            case E_META_SPAWN_EGG_COW:             return mtCow;
            case E_META_SPAWN_EGG_CREEPER:         return mtCreeper;
            case E_META_SPAWN_EGG_ENDERMAN:        return mtEnderman;
            case E_META_SPAWN_EGG_ENDERMITE:       return mtEndermite;
            case E_META_SPAWN_EGG_GHAST:           return mtGhast;
            case E_META_SPAWN_EGG_GUARDIAN:        return mtGuardian;
            case E_META_SPAWN_EGG_HORSE:           return mtHorse;
            case E_META_SPAWN_EGG_MAGMA_CUBE:      return mtMagmaCube;
            case E_META_SPAWN_EGG_MOOSHROOM:       return mtMooshroom;
            case E_META_SPAWN_EGG_OCELOT:          return mtOcelot;
            case E_META_SPAWN_EGG_PIG:             return mtPig;
            case E_META_SPAWN_EGG_RABBIT:          return mtRabbit;
            case E_META_SPAWN_EGG_SHEEP:           return mtSheep;
            case E_META_SPAWN_EGG_SILVERFISH:      return mtSilverfish;
            case E_META_SPAWN_EGG_SKELETON:        return mtSkeleton;
            case E_META_SPAWN_EGG_SLIME:           return mtSlime;
            case E_META_SPAWN_EGG_SPIDER:          return mtSpider;
            case E_META_SPAWN_EGG_SQUID:           return mtSquid;
            case E_META_SPAWN_EGG_VILLAGER:        return mtVillager;
            case E_META_SPAWN_EGG_WITCH:           return mtWitch;
            case E_META_SPAWN_EGG_WITHER_SKELETON: return mtWitherSkeleton;
            case E_META_SPAWN_EGG_WOLF:            return mtWolf;
            case E_META_SPAWN_EGG_ZOMBIE:          return mtZombie;
            case E_META_SPAWN_EGG_ZOMBIE_PIGMAN:   return mtZombiePigman;
            case E_META_SPAWN_EGG_ZOMBIE_VILLAGER: return mtZombieVillager;
            default: return mtInvalidType;
        }
    }
} ;