//---------------------------------------------------------------------------
NiCamera* NIF_Files::FindCamera(NiAVObject* pkObject)
{
// This function recursively walks the scenegraph until a camera
// is found.
if (NiIsKindOf(NiCamera, pkObject))
{
return (NiCamera*) pkObject;
}
else if (NiIsKindOf(NiNode, pkObject))
{
// NiNodes are the primary structural objects in Gamebryo. They
// group other Gamebryo scene objects together under a common parent
// and coordinate system. NiNodes can have as many children as
// necessary, but those children are not guaranteed to be contiguous.
NiNode* pkNode = (NiNode*) pkObject;
for (unsigned int ui = 0; ui < pkNode->GetArrayCount(); ui++)
{
NiCamera* pkFoundCamera = FindCamera(pkNode->GetAt(ui));
if (pkFoundCamera)
return pkFoundCamera;
}
}
return NULL;
}
//-------------------------------------------------------------------------------------------------
uint sdPhysXSceneMgr::CookObject(sdPhysXMemoryWriteStream& kStream, NiAVObject* spAVObject, float fScale, bool bFlipNormal)
{
uint uiSizeByBytes = 0;
if (NiIsKindOf(NiMesh, spAVObject))
{
NiMesh* spMesh = (NiMesh*)spAVObject;
uiSizeByBytes += CookMesh(kStream, spMesh, fScale, bFlipNormal);
}
else if (spAVObject->IsNode())
{
NiNode* spNode = (NiNode*)spAVObject;
for (uint ui = 0; ui < spNode->GetArrayCount(); ++ui)
{
NiAVObject* spChildAVObject = spNode->GetAt(ui);
if (spChildAVObject)
uiSizeByBytes += CookObject(kStream, spChildAVObject, fScale, bFlipNormal);
}
}
return uiSizeByBytes;
}
//---------------------------------------------------------------------------
void Player::Update(float fTime)
{
float fDeltaTime = NiAbs(fTime - m_fLastUpdateTime);
if (fDeltaTime > 1.0f)
{
m_fLastUpdateTime = fTime;
return;
}
if (m_pkTarget) // if there is an object, move it
{
NiAVObject* pkObject = (NiAVObject*)m_pkTarget;
NIASSERT(NiIsKindOf(NiAVObject, pkObject));
// Check the Keyboard exists
NiInputKeyboard* pkKeyboard = NULL;
if (m_pkGameApp->GetInputSystem())
{
pkKeyboard = m_pkGameApp->GetInputSystem()->GetKeyboard();
}
int iHorz = 0;
int iVert = 0;
if (pkKeyboard != NULL)
{
if (pkKeyboard->KeyIsDown(NiInputKeyboard::KEY_LEFT) || pkKeyboard->KeyIsDown(NiInputKeyboard::KEY_A))
iHorz = -127;
if (pkKeyboard->KeyIsDown(NiInputKeyboard::KEY_RIGHT)|| pkKeyboard->KeyIsDown(NiInputKeyboard::KEY_D))
iHorz = 127;
if (pkKeyboard->KeyIsDown(NiInputKeyboard::KEY_DOWN)|| pkKeyboard->KeyIsDown(NiInputKeyboard::KEY_S))
iVert = 127;
if (pkKeyboard->KeyIsDown(NiInputKeyboard::KEY_UP)|| pkKeyboard->KeyIsDown(NiInputKeyboard::KEY_W))
iVert = -127;
}
if (iHorz)
{
float fZ = iHorz * (1.0f / 127.0f);
NiPoint3 kTrans(.1*fZ,0,0);
kTrans = kTrans + pkObject->GetTranslate();
if(kTrans.x > m_xBoundNeg && kTrans.x <m_xBoundPos)
pkObject->SetTranslate(kTrans);
}
if (iVert)
{
float fZ = iVert * (1.0f / 127.0f);
NiPoint3 kTrans(0,0,.1*fZ);
kTrans = kTrans + pkObject->GetTranslate();
if(kTrans.z > m_zBoundNeg && kTrans.z <m_zBoundPos)
pkObject->SetTranslate(kTrans);
}
}
m_fLastUpdateTime = fTime;
}
//---------------------------------------------------------------------------
bool NIF_Files::CreateScene()
{
// Because our scene will have some billboards with alpha, we use
// a NiAlphaAccumulator in order that our alpha gets sorted and drawn
// correctly.
NiAlphaAccumulator* pkAccum = NiNew NiAlphaAccumulator;
m_spRenderer->SetSorter(pkAccum);
// NiStreams are used to load a NIF file from disk. Once a stream is
// loaded, it will contain one or more "top-level" objects. These objects
// could be NiNodes, NiTextures, or any other Gamebryo class. The Max and
// Maya exporters both place the scene graph as the first element in the
// NIF file.
NiStream kStream;
// Load in the scenegraph for our world...
bool bSuccess = kStream.Load(
NiApplication::ConvertMediaFilename("GameScene.nif"));
if (!bSuccess)
{
NiMessageBox("WORLD.NIF file could not be loaded!", "NIF Error");
return false;
}
m_spScene = (NiNode*) kStream.GetObjectAt(0);
NIASSERT(NiIsKindOf(NiNode, m_spScene));
// We expect the world to have been exported with a camera, so we
// look for it here.
// In order to render the scene graph, we need a camera. We're now going
// to recurse the scene graph looking for a camera.
if (!FindSceneCamera())
{
NiMessageBox("The NIF file has no camera!", "Camera Error");
return false;
}
NiTObjectArray<NiCameraPtr> kCameras;
NiTObjectArray<NiLightPtr> kLights;
NiTObjectArray<NiNodePtr> kScenes;
//NiStream kStream;
//bool bSuccess = kStream.Load(
// NiApplication::ConvertMediaFilename("GameScene.nif"));
// if (!bSuccess)
// {
// NiMessageBox("WORLD.NIF file could not be loaded!", "NIF Error");
// return false;
// }
for (unsigned int i = 0; i < kStream.GetObjectCount(); i++)
{
NiObject* pkObject = kStream.GetObjectAt(i);
if (NiIsKindOf(NiCamera, pkObject))
kCameras.Add((NiCamera*) pkObject);
else if (NiIsKindOf(NiLight, pkObject))
kLights.Add((NiLight*) pkObject);
else if (NiIsKindOf(NiNode, pkObject))
kScenes.Add((NiNode*) pkObject);
else
{
// unknown object, handle it somehow
}
}
//m_spScene = (NiNode*) kStream.GetObjectAt(0);
// NIASSERT(NiIsKindOf(NiNode, m_spScene));
return bSuccess;
}
