Adding a Door

From IrrWizard

Adding a Door using a FlyStraightAnimator

Create a function that adds doors for level 1 in the CGameStateLevel01 class and declare it in the header file.

//! Add DOORS to level
void CGameStateLevel01::addDoors(CGameManager* pManager)
{
   scene::IAnimatedMesh* doorMesh = 0;
   doorMesh = pManager->getSceneManager()->getMesh("media/portcullis.3DS");
    
   // Create a GameItem object to add to the CgameItemManager
   CGameItem* door = new CGameItem(GAME_ITEM_DOOR); 
   door->setMeshNode(pManager->getSceneManager()->addAnimatedMeshSceneNode(doorMesh));
   if (door->getMeshNode())
   {
       door->getMeshNode()->setMaterialTexture(0, pManager->getDriver()->
             getTexture ("media/portcullis.jpg"));
       door->getMeshNode()->setPosition(core::vector3df(-265, 65, -245));
       door->getMeshNode()->setScale(core::vector3df(1.1,1.5,1));
       door->getMeshNode()->setRotation(core::vector3df(0,90,0));
       door->getMeshNode()->setMaterialFlag(video::EMF_LIGHTING, false);
       door->getMeshNode()->setID(GAME_ITEM_DOOR); 
       door->setTriggerRegion(130);
       pManager->getItemManager()->AddItem(door);
        
       // Add collision detection, don't want players walking through door.
      	irr::scene::ITriangleSelector* doorSelector = pManager->
             getSceneManager()->createTriangleSelectorFromBoundingBox(door->getMeshNode()); 
       if(doorSelector) pManager->getMetaSelector()->addTriangleSelector(doorSelector); 
   }
}

Now call this new function from within the Init() function of CGameStateLevel01 below:

//! Initialisation, loads data required for level
void CGameStateLevel01::Init(CGameManager* pManager)
{
   ...
   addDoors(pManager);
   ...
}

Change the CGameItemManager::processTriggerDoor(CGameManager* pManager, CGameItem* pItem) function to the same as below, (CGameItemManager is in the 'core' folder).

//! DOOR Trigger activated
void CGameItemManager::processTriggerDoor(CGameManager* pManager, CGameItem* pItem)
{
       // non animated door, using a FlyStraightAnimator
       core::vector3df start = pItem->getMeshNode()->getPosition();
       core::vector3df end = start;
       end.Y = end.Y + 120;
       ISceneNodeAnimator* anim = pManager->getSceneManager()->
           createFlyStraightAnimator(start, end, 3000, false);
       pItem->getMeshNode()->addAnimator(anim);
}

Compile and run. This should produce a door that raises automatically when the player moves within it's trigger radius. The speed can be altered by reducing the 3rd parameter of the createFlyStraightAnimator function, in this case 3000.