[master] Mythic+ System

[BertiRean]

Description

Issue Description: Missing Mythic+ System in TrinityCore

Overview:
The current TrinityCore lacks the Mythic+ system, a pivotal end-game feature. Its absence diminishes the authenticity and limits player engagement.

Expected behaviour

• Functionality: Verify the complete functionality of Mythic+ dungeons.

• Keystone Mechanics: Ensure accurate replication of Keystone mechanics.

• Difficulty Scaling: Validate appropriate scaling of dungeon difficulty.

• Loot Distribution: Confirm correct loot distribution mechanics.

Steps to reproduce the problem

Go to a instance in Mythic and you can't activate the mythic+

Branch

master

TC rev. hash/commit

55b29d4

Operating system

All

Custom changes

None

[BertiRean]

@Shauren, @mdX7 , @meji46 About this. I've made work the difficult change, now my issue is if this code is safe for generate a respawn in all objects of the map.

void Map::RespawnAllObjects()
{
    DeleteRespawnTimes();

for (WorldObject* obj : GetWorldObjects())
{
    if (obj->IsPlayer())
        continue;

    if (obj->IsCreature() || obj->IsGameObject() || obj->IsAreaTrigger())
    {
        ASSERT(obj->IsStoredInWorldObjectGridContainer());
        obj->RemoveFromWorld();
        obj->ResetMap();
    }
}

for (uint32 cellX = 0; cellX < TOTAL_NUMBER_OF_CELLS_PER_MAP; cellX++)
{
    for (uint32 cellY = 0; cellY < TOTAL_NUMBER_OF_CELLS_PER_MAP; cellY++)
    {
        float x = (cellX + 0.5f - CENTER_GRID_CELL_ID) * SIZE_OF_GRID_CELL;
        float y = (cellY + 0.5f - CENTER_GRID_CELL_ID) * SIZE_OF_GRID_CELL;

        Cell cell{ x,y };

        NGridType* grid = getNGrid(cell.GridX(), cell.GridY());

        if (grid)
            LoadGridObjects(grid, cell);
    }
}

My main question is if I need wait a time or something to delete the previous objects and spawn the new ones.