ok ..this the initialization routine
bool Directx11::init(HINSTANCE hinst,HWND hw){
_hinst=hinst;_hwnd=hw;
RECT rc;
GetClientRect(_hwnd,&rc);
height= rc.bottom - rc.top;
width = rc.right - rc.left;
UINT flags=0;
#ifdef _DEBUG
flags |=D3D11_CREATE_DEVICE_DEBUG;
#endif
HR(D3D11CreateDevice(0,_driverType,0,flags,0,0,D3D11_SDK_VERSION,&d3dDevice,&_featureLevel,&d3dDeviceContext));
if (d3dDevice == 0 || d3dDeviceContext == 0)
return 0;
DXGI_SWAP_CHAIN_DESC sdesc;
HR(d3dDevice->CheckMultisampleQualityLevels(DXGI_FORMAT_R8G8B8A8_UNORM,4,&m4xMsaaQuality));
m4xMsaaEnable=true;
ZeroMemory(&sdesc,sizeof(DXGI_SWAP_CHAIN_DESC));
sdesc.Windowed=true;
sdesc.BufferCount=1;
sdesc.BufferDesc.Format=DXGI_FORMAT_R8G8B8A8_UNORM;
sdesc.BufferDesc.Height=height;
sdesc.BufferDesc.Width=width;
sdesc.BufferDesc.Scaling=DXGI_MODE_SCALING_UNSPECIFIED;
sdesc.BufferDesc.ScanlineOrdering=DXGI_MODE_SCANLINE_ORDER_UNSPECIFIED;
sdesc.OutputWindow=_hwnd;
sdesc.BufferDesc.RefreshRate.Denominator=1;
sdesc.BufferDesc.RefreshRate.Numerator=60;
sdesc.Flags=0;
sdesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
if (m4xMsaaEnable)
{
sdesc.SampleDesc.Count=4;
sdesc.SampleDesc.Quality=m4xMsaaQuality-1;
}
else
{
sdesc.SampleDesc.Count=1;
sdesc.SampleDesc.Quality=0;
}
IDXGIDevice *Device=0;
HR(d3dDevice->QueryInterface(__uuidof(IDXGIDevice),reinterpret_cast <void**> (&Device)));
IDXGIAdapter*Ad=0;
HR(Device->GetParent(__uuidof(IDXGIAdapter),reinterpret_cast <void**> (&Ad)));
IDXGIFactory* fac=0;
HR(Ad->GetParent(__uuidof(IDXGIFactory),reinterpret_cast <void**> (&fac)));
fac->CreateSwapChain(d3dDevice,&sdesc,&swapchain);
ReleaseCOM(Device);
ReleaseCOM(Ad);
ReleaseCOM(fac);
ID3D11Texture2D *back = 0;
HR(swapchain->GetBuffer(0,__uuidof(ID3D11Texture2D),reinterpret_cast <void**> (&back)));
HR(d3dDevice->CreateRenderTargetView(back,0,&RenderTarget));
D3D11_TEXTURE2D_DESC Tdesc;
ZeroMemory(&Tdesc,sizeof(D3D11_TEXTURE2D_DESC));
Tdesc.BindFlags = D3D11_BIND_DEPTH_STENCIL;
Tdesc.ArraySize = 1;
Tdesc.Format= DXGI_FORMAT_D24_UNORM_S8_UINT;
Tdesc.Height= height;
Tdesc.Width = width;
Tdesc.Usage = D3D11_USAGE_DEFAULT;
Tdesc.MipLevels=1;
if (m4xMsaaEnable)
{
Tdesc.SampleDesc.Count=4;
Tdesc.SampleDesc.Quality=m4xMsaaQuality-1;
}
else
{
Tdesc.SampleDesc.Count=1;
Tdesc.SampleDesc.Quality=0;
}
HR(d3dDevice->CreateTexture2D(&Tdesc,0,&depthview));
HR(d3dDevice->CreateDepthStencilView(depthview,0,&depth));
d3dDeviceContext->OMSetRenderTargets(1,&RenderTarget,depth);
D3D11_VIEWPORT vp;
vp.TopLeftX=0.0f;
vp.TopLeftY=0.0f;
vp.Width = static_cast <float> (width);
vp.Height= static_cast <float> (height);
vp.MinDepth = 0.0f;
vp.MaxDepth = 1.0f;
d3dDeviceContext -> RSSetViewports(1,&vp);
return true;
}
and this is the function that updates the view matrix and the app scenes
this need some explanation so you dont waste your time trying to understand ....
this function job is update the world matrices every one second (3D Tetris app) droping a box from above every 10 secs ..... so it will need about 10 secs to reach the bottom until it drops another box.......the B variable contains every possible step (small cubes world matrices) ....currentitem variable is to store the currently dropping box to move if the user clicked arrows buttons ........also updating the view matrix every frame....the view matrix updating is at the bottom of the function
void Game::Update(float dt){
static float T = 0.0f,T2=0.0;
T = T + dt;T2 += dt;
UINT ge;
if ((T * 1000.0f)>= 1000.0f)
{
UINT mon = B.GetSize();
for (UINT i = 1; i < mon ; i++)
{
UINT si=B.Memory[i].filledindeces.size(),si2 = B.Memory[i-1].filledindeces.size();
for (UINT r = 0; r < si; r++)
{
ge =B.Memory[i].filledindeces.back();
for (UINT kll = 0; kll < si2; kll++)
{
if (ge == B.Memory[i-1].filledindeces[kll])
{
ge = 10000;
}
}
if (ge == 10000) {
if(i == 9)
{
MessageBoxA(_hwnd,"you lost\nTerminating...","Game Over",MB_ICONINFORMATION);
exit(1);
}
continue;
}
B.Memory[i].filledindeces.pop_back();
B.Memory[i - 1].filledindeces.push_back(ge);
currentItem.Height=i-1;
}
}
T=0.0f;
int ra = rand();
if(ra<0) ra = -1* ra;
if ((T2 * 1000.0f) >= 10000.0f)
{
T2 = 0.0f;
while(!(ra >=0 && ra <36)){
ra = rand();
}
B.Memory[9].filledindeces.push_back(ra);
currentItem.Floor_Index=ra;
currentItem.Height=9;
}
}
float x=radius * sinf(phi) * cosf(theta);
float z=radius * sinf(phi) * sinf(theta);
float y=radius * cosf(phi);
XMMATRIX V;
XMVECTOR Foc = XMVectorSet(B.Memory[8].Pieces[18]._11,B.Memory[8].Pieces[18]._22,B.Memory[8].Pieces[18]._33,1.0f),
Up = XMVectorSet(0.0f,1.0f,0.0f,0.0f),
Pos= XMVectorSet(x , y ,z,1.0f);
V=XMMatrixLookAtLH(Pos,Foc,Up);
XMStoreFloat4x4(&View,V);
}
this the rendering function
void Game::Render(){
d3dDeviceContext->ClearRenderTargetView(RenderTarget,reinterpret_cast <const float*> (&Colors::LightSteelBlue));
d3dDeviceContext->ClearDepthStencilView(depth,D3D11_CLEAR_DEPTH | D3D11_CLEAR_STENCIL,1.0f,0);
d3dDeviceContext-> IASetInputLayout(_layout);
d3dDeviceContext-> IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
d3dDeviceContext->IASetIndexBuffer(indices,DXGI_FORMAT_R32_UINT,0);
UINT strides=sizeof(Vertex),off=0;
d3dDeviceContext->IASetVertexBuffers(0,1,&vertices,&strides,&off);
D3DX11_TECHNIQUE_DESC des;
Tech->GetDesc(&des);
Floor * Lookup;
std::vector<XMFLOAT4X4> filled;
XMMATRIX V=XMLoadFloat4x4(&View),P = XMLoadFloat4x4(&Proj);
XMMATRIX vp = V * P;
XMMATRIX wvp;
for (UINT i = 0; i < des.Passes; i++)
{
wvp = XMLoadFloat4x4(&(B.Memory[0].Pieces[35])) * vp;
HR(ShadeMat->SetMatrix(reinterpret_cast<float*> ( &wvp)));
HR(Tech->GetPassByIndex(i)->Apply(0,d3dDeviceContext));
d3dDeviceContext->RSSetState(BuildRast);
d3dDeviceContext-> DrawIndexed(build_ind_count,build_ind_index,build_vers_index);
d3dDeviceContext->RSSetState(0);
UINT r1=10;
for (UINT j = 0; j < r1; j++)
{
Lookup = &B.Memory[j];
for (UINT r = 0; r < Lookup->filledindeces.size(); r++)
{
filled.push_back(Lookup->Pieces[Lookup->filledindeces[r]]);
}
}
UINT r2=filled.size();
for (UINT j = 0; j < r2; j++)
{
wvp = XMLoadFloat4x4(&filled[j])*vp;
ShadeMat->SetMatrix( reinterpret_cast<float*> (&wvp));
Tech->GetPassByIndex(i)->Apply(0,d3dDeviceContext);
d3dDeviceContext->DrawIndexed(piese_ind_count,piese_ind_index,piese_vers_index);
}
filled.clear();
}
HR(swapchain->Present(0,0));
}
thanks for you time
