gossip_script.cpp

/*
    Fixed and explained Srzm's script
    http://www.ac-web.org/forums/showthread.php?231858-Help-Getting-started-with-Custom-NPC-and-Boss-Scripting

    I'm using Trinity Core 3.3.5 (22-march-2018 updated version)

-- ==================================================================================================================================
    -- This is the npc I used in my database
    Set @Entry = 55000,
        @Npc_Name = "Test",
        @Subname = "",
        @ModelID = 31833, 
        @Level = 80,
        @ScriptName = "Innkeeperhealer";
    INSERT INTO `world`.`creature_template` (`entry`, `modelid1`, `name`, `subname`, `minlevel`, `maxlevel`, `faction`, `npcflag`, `speed_walk`, `speed_run`, `scale`, `rank`, `BaseAttackTime`, `RangeAttackTime`, `BaseVariance`, `RangeVariance`, `unit_class`, `unit_flags`, `unit_flags2`, `type`, `HoverHeight`, `HealthModifier`, `ManaModifier`, `ArmorModifier`, `DamageModifier`, `ExperienceModifier`, `RegenHealth`, `ScriptName`, `VerifiedBuild`) VALUES
    (@Entry, @ModelID, @Npc_Name, @Subname, @Level, @Level, 35, 1, 1, 1.14286, 1, 1, 2000, 2000, 1, 1, 2, 0, 2048, 7, 1, 50, 50, 1, 1, 1, 1, @ScriptName, 12340);
-- ==================================================================================================================================  
    
    
    Short video showing the NPC that uses this script
    https://streamable.com/l50ah
    
*/


#include "ScriptMgr.h"
#include "ScriptedGossip.h"
#include "ScriptedCreature.h"
#include "GossipDef.h"
#include "Creature.h"
#include "Player.h"
#include "WorldSession.h"

enum GossipMenuID
{
    /* it's easier to understand and search if you're using string instead of plain numbers */
    Menu_Close1 = 1,
    Menu_Close2 = 2,
    Menu_Heal1,
    Menu_Heal2,
    Menu_Morph,
    Menu_DeMorph,
    Menu_ShowBank,
    Menu_ShowMailBox,
    Menu_NPC_SAY,
    Menu_NPC_YELL,
    Menu_NPC_Whisper,
    Menu_BuffNpc,
    Menu_BuffPlayer,
    Menu_RemoveBuffNpc,
    Menu_RemoveBuffPlayer,

};

enum Spells
{
    GREATER_HEAL = 71931,
    POWER_WORD_FORTITUDE = 48161, // Power infuses the target increasing their Stamina by 165 for 30 min. (Rank 8)
    SOME_OTHER_SPELL = 123
};

#define CLOSE1 "I wanna close the window THIS way!"
#define CLOSE2 "No, better close it THIS way..!"

#define HEAL1 "Heal me! (function SetFullHealth())"
#define HEAL2 "Heal me! (cast a healing spell)"

#define Morph_plr "Morph Me into a crab"
#define DeMorph_plr "DeMorph Me"

#define Show_Bank "Show Bank"
#define Show_MailBox "Show Mail"

#define Npc_Say "Say Something"
#define Npc_Yell "Yell Something"
#define Npc_Whisper "Whisper Something"

#define Buff_NPC "Buff npc"
#define Buff_Player "Buff player"
#define RemoveBuff_NPC "Remove Buff from npc"
#define RemoveBuff_Player "Remove Buff from player"

// gossip text id can be taken from world database, npc_text table. For example id 1 = "Greetings, $n." ($n means player's name)
#define GOSSIP_TEXT_ID_HEY_CITIZEN  197 // "Hey citizen! You look like a stout one. We guards are spread a little thin out here, and I could use you help..."

class Innkeeperhealer : public CreatureScript
{
public:
    Innkeeperhealer() : CreatureScript("Innkeeperhealer") {}

    struct InnkeeperhealerAI : public ScriptedAI
    {
        InnkeeperhealerAI(Creature* creature) : ScriptedAI(creature) { }

        bool GossipHello(Player* plr) override
        {
            //if (true) // What is this ?? I don't think you need it ( no logic behind this if statement)
            //{
                /* Option 1: Closing the Gossip Menu with the text: "I wanna close the window THIS way!" */
                AddGossipItemFor(plr, GOSSIP_ICON_CHAT, CLOSE1, GOSSIP_SENDER_MAIN, Menu_Close1);

                /* Option 2: Closing the Gossip Menu with the text: "No, better close it THIS way..!" */
                AddGossipItemFor(plr, GOSSIP_ICON_CHAT, CLOSE2, GOSSIP_SENDER_MAIN, Menu_Close2);

                // I've added the healing menus
                AddGossipItemFor(plr, GOSSIP_ICON_CHAT, HEAL1, GOSSIP_SENDER_MAIN, Menu_Heal1);
                AddGossipItemFor(plr, GOSSIP_ICON_CHAT, HEAL2, GOSSIP_SENDER_MAIN, Menu_Heal2);

                //this is another example - morph player
                AddGossipItemFor(plr, GOSSIP_ICON_CHAT, Morph_plr, GOSSIP_SENDER_MAIN, Menu_Morph);
                AddGossipItemFor(plr, GOSSIP_ICON_CHAT, DeMorph_plr, GOSSIP_SENDER_MAIN, Menu_DeMorph);

                // show player's bank ui
                AddGossipItemFor(plr, GOSSIP_ICON_CHAT, Show_Bank, GOSSIP_SENDER_MAIN, Menu_ShowBank);

                // show player's mailbox ui
                AddGossipItemFor(plr, GOSSIP_ICON_CHAT, Show_MailBox, GOSSIP_SENDER_MAIN, Menu_ShowMailBox);

                // npc say something
                AddGossipItemFor(plr, GOSSIP_ICON_CHAT, Npc_Say, GOSSIP_SENDER_MAIN, Menu_NPC_SAY);

                // npc yell something
                AddGossipItemFor(plr, GOSSIP_ICON_CHAT, Npc_Yell, GOSSIP_SENDER_MAIN, Menu_NPC_YELL);

                // npc whisper something
                AddGossipItemFor(plr, GOSSIP_ICON_CHAT, Npc_Whisper, GOSSIP_SENDER_MAIN, Menu_NPC_Whisper);

                // buff npc
                AddGossipItemFor(plr, GOSSIP_ICON_CHAT, Buff_NPC, GOSSIP_SENDER_MAIN, Menu_BuffNpc);

                // remove buff from npc
                AddGossipItemFor(plr, GOSSIP_ICON_CHAT, RemoveBuff_NPC, GOSSIP_SENDER_MAIN, Menu_RemoveBuffNpc);

                // buff player
                AddGossipItemFor(plr, GOSSIP_ICON_CHAT, Buff_Player, GOSSIP_SENDER_MAIN, Menu_BuffPlayer);

                // remove buff from player
                AddGossipItemFor(plr, GOSSIP_ICON_CHAT, RemoveBuff_Player, GOSSIP_SENDER_MAIN, Menu_RemoveBuffPlayer);

                /* Display both of those options when a player talks to me. */
                SendGossipMenuFor(plr, GOSSIP_TEXT_ID_HEY_CITIZEN, me->GetGUID());
            //}
            return true;
        }

        bool GossipSelect(Player* plr, uint32 /*menuId*/, uint32 uiAction) override
        {
            /* If there is no player around, don't do anything. */
            //if (!plr) // There is no need for this check
            //    return false;

            uint32 const action = plr->PlayerTalkClass->GetGossipOptionAction(uiAction); // this line should be first

            ClearGossipMenuFor(plr); // this should be the second line, otherwise it wouldn't work

            switch (action)
            {

                /*
                In c++ you can do "case 1: case 2: case n: DO SOMETHING break;" if 
                you want all cases to do the same thing. It's not a must but it looks easier and less writing
                of the same function/s for all cases.

                e.g.

                case 1:
                case 2:
                    CloseGossipMenuFor(player);
                break;

                */

                case Menu_Close1:
                    CloseGossipMenuFor(plr);
                    break; // You forgot to add the break for the case

                case Menu_Close2:
                    CloseGossipMenuFor(plr);
                    break; // You forgot to add the break for the case

                case Menu_Heal1: // Heal the player: you can either use a healing spell or a tc function
                    if (plr->GetHealthPct() == 100.0f)
                    {
                        plr->GetSession()->SendAreaTriggerMessage("Your health is already full.");
                    }
                    else // if player's health is less than 100%
                    {
                        plr->SetFullHealth();
                        plr->GetSession()->SendAreaTriggerMessage("Your health has been restored.");
                        CloseGossipMenuFor(plr);
                    }
                    break;

                case Menu_Heal2: // Heal the player: you can either use a healing spell or a tc function
                    // in this case "me" is the npc who's casting the spell. If you want the player to cast the spell, just replace me with plr
                    me->CastSpell(plr, GREATER_HEAL, false); // the third argument is either true (don't cast the spell) or false (cast the spell)
                    plr->GetSession()->SendAreaTriggerMessage("You've been healed.");
                    CloseGossipMenuFor(plr);
                    break;

                case Menu_Morph:
                    plr->SetDisplayId(999); // display id 999 = crab ( these ID's can be found in CreatureDisplayInfo.dbc and CreatureModelData.dbc)
                    break;

                case Menu_DeMorph:
                    plr->DeMorph();
                    break;

                case Menu_ShowBank:
                    plr->GetSession()->SendShowBank(plr->GetGUID());
                    break;

                case Menu_ShowMailBox:
                    plr->GetSession()->SendShowMailBox(plr->GetGUID());
                    break;

                case Menu_NPC_SAY:
                    me->Say("I'm saying Something!", LANG_UNIVERSAL, plr);
                    break;

                case Menu_NPC_YELL:
                    me->Yell("I'm yelling Something!", LANG_UNIVERSAL, plr);
                    break;

                case Menu_NPC_Whisper:
                    me->Whisper("I'm whispering Something!", LANG_UNIVERSAL, plr);
                    break;

                case Menu_BuffNpc:
                    me->AddAura(POWER_WORD_FORTITUDE, me);
                    break;

                case Menu_RemoveBuffNpc:
                    me->RemoveAura(POWER_WORD_FORTITUDE);
                    break;

                case Menu_BuffPlayer:
                    me->AddAura(POWER_WORD_FORTITUDE, plr);
                    break;

                case Menu_RemoveBuffPlayer:
                    plr->RemoveAura(POWER_WORD_FORTITUDE);
                    break;

            }
            CloseGossipMenuFor(plr); // if cases are missing this, you can add it here for all cases to close after functions are executed.

            return true;
        }
    };

    CreatureAI* GetAI(Creature* creature) const override
    {
        return new InnkeeperhealerAI(creature);
    }
};

void ADDSC_Innkeeperhealer()
{
    new Innkeeperhealer();
}