item_scripts.cpp

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/*
 * This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program. If not, see <http://www.gnu.org/licenses/>.
 */
 
/* ScriptData
SDName: Item_Scripts
SD%Complete: 100
SDComment: Items for a range of different items. See content below (in script)
SDCategory: Items
EndScriptData */
 
/* ContentData
item_flying_machine(i34060, i34061)  Engineering crafted flying machines
item_only_for_flight                Items which should only useable while flying
EndContentData */
 
#include "ScriptMgr.h"
#include "GameObject.h"
#include "Item.h"
#include "Player.h"
#include "ScriptedCreature.h"
#include "Spell.h"
#include "SpellMgr.h"
#include "TemporarySummon.h"
 
/*#####
# item_only_for_flight
#####*/
 
enum OnlyForFlight
{
    SPELL_ARCANE_CHARGES    = 45072
};
 
class item_only_for_flight : public ItemScript
{
public:
    item_only_for_flight() : ItemScript("item_only_for_flight") { }
 
    bool OnUse(Player* player, Item* item, SpellCastTargets const& /*targets*/) override
    {
        uint32 itemId = item->GetEntry();
        bool disabled = false;
 
        //for special scripts
        switch (itemId)
        {
            case 24538:
                if (player->GetAreaId() != 3628)
                    disabled = true;
                break;
            case 34489:
                if (player->GetZoneId() != 4080)
                    disabled = true;
                break;
            case 34475:
                if (SpellInfo const* spellInfo = sSpellMgr->GetSpellInfo(SPELL_ARCANE_CHARGES))
                    Spell::SendCastResult(player, spellInfo, 1, SPELL_FAILED_NOT_ON_GROUND);
                break;
        }
 
        // allow use in flight only
        if (player->IsInFlight() && !disabled)
            return false;
 
        // error
        player->SendEquipError(EQUIP_ERR_CLIENT_LOCKED_OUT, item, nullptr);
        return true;
    }
};
 
/*#####
# item_mysterious_egg
#####*/
 
class item_mysterious_egg : public ItemScript
{
public:
    item_mysterious_egg() : ItemScript("item_mysterious_egg") { }
 
    bool OnExpire(Player* player, ItemTemplate const* /*pItemProto*/) override
    {
        ItemPosCountVec dest;
        uint8 msg = player->CanStoreNewItem(NULL_BAG, NULL_SLOT, dest, 39883, 1); // Cracked Egg
        if (msg == EQUIP_ERR_OK)
            player->StoreNewItem(dest, 39883, true, GenerateItemRandomPropertyId(39883));
 
        return true;
    }
};
 
/*#####
# item_disgusting_jar
#####*/
 
class item_disgusting_jar : public ItemScript
{
public:
    item_disgusting_jar() : ItemScript("item_disgusting_jar") { }
 
    bool OnExpire(Player* player, ItemTemplate const* /*pItemProto*/) override
    {
        ItemPosCountVec dest;
        uint8 msg = player->CanStoreNewItem(NULL_BAG, NULL_SLOT, dest, 44718, 1); // Ripe Disgusting Jar
        if (msg == EQUIP_ERR_OK)
            player->StoreNewItem(dest, 44718, true, GenerateItemRandomPropertyId(44718));
 
        return true;
    }
};
 
/*#####
# item_petrov_cluster_bombs
#####*/
 
enum PetrovClusterBombs
{
    SPELL_PETROV_BOMB           = 42406,
    AREA_ID_SHATTERED_STRAITS   = 4064,
    ZONE_ID_HOWLING             = 495
};
 
class item_petrov_cluster_bombs : public ItemScript
{
public:
    item_petrov_cluster_bombs() : ItemScript("item_petrov_cluster_bombs") { }
 
    bool OnUse(Player* player, Item* item, SpellCastTargets const& /*targets*/) override
    {
        if (player->GetZoneId() != ZONE_ID_HOWLING)
            return false;
 
        if (!player->GetTransport() || player->GetAreaId() != AREA_ID_SHATTERED_STRAITS)
        {
            player->SendEquipError(EQUIP_ERR_NONE, item, nullptr);
 
            if (SpellInfo const* spellInfo = sSpellMgr->GetSpellInfo(SPELL_PETROV_BOMB))
                Spell::SendCastResult(player, spellInfo, 1, SPELL_FAILED_NOT_HERE);
 
            return true;
        }
 
        return false;
    }
};
 
enum CapturedFrog
{
    QUEST_THE_PERFECT_SPIES      = 25444,
    NPC_VANIRAS_SENTRY_TOTEM     = 40187
};
 
class item_captured_frog : public ItemScript
{
public:
    item_captured_frog() : ItemScript("item_captured_frog") { }
 
    bool OnUse(Player* player, Item* item, SpellCastTargets const& /*targets*/) override
    {
        if (player->GetQuestStatus(QUEST_THE_PERFECT_SPIES) == QUEST_STATUS_INCOMPLETE)
        {
            if (player->FindNearestCreature(NPC_VANIRAS_SENTRY_TOTEM, 10.0f))
                return false;
            else
                player->SendEquipError(EQUIP_ERR_OUT_OF_RANGE, item, nullptr);
        }
        else
            player->SendEquipError(EQUIP_ERR_CLIENT_LOCKED_OUT, item, nullptr);
        return true;
    }
};
 
// Only used currently for
// 19169: Nightfall
class item_generic_limit_chance_above_60 : public ItemScript
{
    public:
        item_generic_limit_chance_above_60() : ItemScript("item_generic_limit_chance_above_60") { }
 
        bool OnCastItemCombatSpell(Player* /*player*/, Unit* victim, SpellInfo const* /*spellInfo*/, Item* /*item*/) override
        {
            // spell proc chance gets severely reduced on victims > 60 (formula unknown)
            if (victim->GetLevel() > 60)
            {
                // gives ~0.1% proc chance at lvl 70
                float const lvlPenaltyFactor = 9.93f;
                float const failureChance = (victim->GetLevel() - 60) * lvlPenaltyFactor;
 
                // base ppm chance was already rolled, only roll success chance
                return !roll_chance_f(failureChance);
            }
 
            return true;
        }
};
 
void AddSC_item_scripts()
{
    new item_only_for_flight();
    new item_mysterious_egg();
    new item_disgusting_jar();
    new item_petrov_cluster_bombs();
    new item_captured_frog();
    new item_generic_limit_chance_above_60();
}