fix(Core/GameObjectScript): Environmental damage of burning game objects (#2432)

data/sql/updates/pending_db_world/rev_1573682333945401103.sql

@@ -0,0 +1,5 @@
+INSERT INTO `version_db_world` (`sql_rev`) VALUES ('1573682333945401103');
+
+DELETE FROM `gameobject` WHERE `id` IN (2061,2066);
+UPDATE `gameobject_template` SET `Data2` = 0, `ScriptName` = 'go_flames' WHERE `type` = 8 AND `Data2` = 2061;
+UPDATE `gameobject_template` SET `Data2` = 0, `ScriptName` = 'go_heat' WHERE `type` = 8 AND `Data2` = 2066;

src/server/game/Grids/Notifiers/GridNotifiers.h

@@ -1248,6 +1248,23 @@ namespace acore
             bool _disallowGM;
     };
 
+    class AnyPlayerExactPositionInGameObjectRangeCheck
+    {
+        public:
+            AnyPlayerExactPositionInGameObjectRangeCheck(GameObject const* go, float range) : _go(go), _range(range) {}
+            bool operator()(Player* u)
+            {
+                if (!_go->IsInRange(u->GetPositionX(), u->GetPositionY(), u->GetPositionZ(), _range))
+                    return false;
+
+                return true;
+            }
+
+        private:
+            GameObject const* _go;
+            float _range;
+    };
+
     class NearestPlayerInObjectRangeCheck
     {
         public:

src/server/scripts/World/go_scripts.cpp

@@ -37,6 +37,8 @@ EndContentData */
 #include "Spell.h"
 #include "Player.h"
 #include "WorldSession.h"
+#include "GridNotifiersImpl.h"
+#include "CellImpl.h"
 
 // Ours
 /*######
@@ -312,6 +314,99 @@ public:
     }
 };
 
+enum Flames
+{
+    SPELL_FLAMES = 7897
+};
+
+class go_flames : public GameObjectScript
+{
+public:
+    go_flames() : GameObjectScript("go_flames") { }
+
+    struct go_flamesAI : public GameObjectAI
+    {
+        go_flamesAI(GameObject* gameObject) : GameObjectAI(gameObject),
+            timer { 0 }
+        { }
+
+        void UpdateAI(uint32  diff)
+        {
+            timer += diff;
+            if (timer > 3000)
+            {
+                timer = 0;
+                std::list<Player*> players;
+                acore::AnyPlayerExactPositionInGameObjectRangeCheck checker(go, 0.3f);
+                acore::PlayerListSearcher<acore::AnyPlayerExactPositionInGameObjectRangeCheck> searcher(go, players, checker);
+                go->VisitNearbyWorldObject(0.3f, searcher);
+
+                if (players.size() > 0)
+                {
+                    std::list<Player*>::iterator itr = players.begin();
+                    std::advance(itr, urand(0, players.size() - 1));
+                    if (Creature* trigger = go->SummonTrigger((*itr)->GetPositionX(), (*itr)->GetPositionY(), (*itr)->GetPositionZ(), 0, 2000, true))
+                        trigger->CastSpell(trigger, SPELL_FLAMES);
+                }
+            }
+        }
+
+    private:
+        uint32 timer;
+    };
+
+    GameObjectAI* GetAI(GameObject* go) const
+    {
+        return new go_flamesAI(go);
+    }
+};
+
+enum Heat
+{
+    SPELL_HEAT = 7902
+};
+
+class go_heat : public GameObjectScript
+{
+public:
+    go_heat() : GameObjectScript("go_heat") { }
+
+    struct go_heatAI : public GameObjectAI
+    {
+        go_heatAI(GameObject* gameObject) : GameObjectAI(gameObject),
+            timer { 0 }
+        { }
+
+        void UpdateAI(uint32  diff)
+        {
+            timer += diff;
+            if (timer > 3000)
+            {
+                timer = 0;
+                std::list<Player*> players;
+                acore::AnyPlayerExactPositionInGameObjectRangeCheck checker(go, 0.3f);
+                acore::PlayerListSearcher<acore::AnyPlayerExactPositionInGameObjectRangeCheck> searcher(go, players, checker);
+                go->VisitNearbyWorldObject(0.3f, searcher);
+
+                if (players.size() > 0)
+                {
+                    std::list<Player*>::iterator itr = players.begin();
+                    std::advance(itr, urand(0, players.size() - 1));
+                    if (Creature* trigger = go->SummonTrigger((*itr)->GetPositionX(), (*itr)->GetPositionY(), (*itr)->GetPositionZ(), 0, 2000, true))
+                        trigger->CastSpell(trigger, SPELL_HEAT);
+                }
+            }
+        }
+
+    private:
+        uint32 timer;
+    };
+
+    GameObjectAI* GetAI(GameObject* go) const
+    {
+        return new go_heatAI(go);
+    }
+};
 
 
 // Theirs
@@ -1178,6 +1273,8 @@ void AddSC_go_scripts()
     new go_ethereum_stasis();
     new go_resonite_cask();
     new go_tadpole_cage();
+    new go_flames();
+    new go_heat();
 
     // Theirs
     new go_cat_figurine();