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Reading from extern file

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Hi I've just started learning directx, drawing triangles.. I want to get my array from another file (.txt or something) is that possible? and how? CUSTOMVERTEX Vertices[] = { { 150.0f, 150.0f, 0.5f, 1.0f, 0xffff0000, }, // x, y, z, rhw, color { 119.0f, 160.0f, 0.5f, 1.0f, 0xff00ff00, }, { 111.0f, 150.0f, 0.5f, 1.0f, 0xff00ffff, }, }; Thanks =)

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no I know, but how can I use IOstream in the middle of the dirext programming?

g_pd3dDevice->CreateVertexBuffer( 5*sizeof(Vertex), 0, D3DFVF_MY_VERTEX,
D3DPOOL_DEFAULT, &g_pPointList_VB, NULL );

pVertices = NULL;
g_pPointList_VB->Lock( 0, sizeof(g_pointList), (void**)&pVertices, 0 );
memcpy( pVertices, g_pointList, sizeof(g_pointList) );
g_pPointList_VB->Unlock();

////////////////////////////
case D3DPT_POINTLIST:
g_pd3dDevice->SetStreamSource( 0, g_pPointList_VB, 0, sizeof(Vertex) );
g_pd3dDevice->SetFVF( D3DFVF_MY_VERTEX );
g_pd3dDevice->DrawPrimitive( D3DPT_POINTLIST, 0, 5 );
break;
///////////////////////////////

Vertex g_pointList[] =
{
{ 0.0f, 0.0f, 0.0f, D3DCOLOR_COLORVALUE( 1.0, 0.0, 0.0, 1.0 ) },
{ 0.5f, 0.0f, 0.0f, D3DCOLOR_COLORVALUE( 0.0, 1.0, 0.0, 1.0 ) },
{-0.5f, 0.0f, 0.0f, D3DCOLOR_COLORVALUE( 0.0, 0.0, 1.0, 1.0 ) },
{ 0.0f,-0.5f, 0.0f, D3DCOLOR_COLORVALUE( 1.0, 1.0, 0.0, 1.0 ) },
{ 0.0f, 0.5f, 0.0f, D3DCOLOR_COLORVALUE( 0.0, 1.0, 1.0, 1.0 ) },
};

this last piece of code (the array) I want to get that from an .txt file.

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In the middle of your Directx program you can use the standard io. If you what to read

Vertex g_pointList[] = 
{
{ 0.0f, 0.0f, 0.0f, D3DCOLOR_COLORVALUE( 1.0, 0.0, 0.0, 1.0 ) },
{ 0.5f, 0.0f, 0.0f, D3DCOLOR_COLORVALUE( 0.0, 1.0, 0.0, 1.0 ) },
{-0.5f, 0.0f, 0.0f, D3DCOLOR_COLORVALUE( 0.0, 0.0, 1.0, 1.0 ) },
{ 0.0f,-0.5f, 0.0f, D3DCOLOR_COLORVALUE( 1.0, 1.0, 0.0, 1.0 ) },
{ 0.0f, 0.5f, 0.0f, D3DCOLOR_COLORVALUE( 0.0, 1.0, 1.0, 1.0 ) },
};



dynamically during the execution you can't you need to read the the values in from the file and load them into the array.

Dragoncar

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the .txt file is updatet realtime all the time with new data, and I want to show this picture realtime. Aren't there a way to recieve data externally realtime?

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So if I create the array Vertex g_pointList[] in my .ccp file, I can get the data
{ 0.0f, 0.0f, 0.0f, D3DCOLOR_COLORVALUE( 1.0, 0.0, 0.0, 1.0 )
{ 0.5f, 0.0f, 0.0f, D3DCOLOR_COLORVALUE( 0.0, 1.0, 0.0, 1.0 )
{-0.5f, 0.0f, 0.0f, D3DCOLOR_COLORVALUE( 0.0, 0.0, 1.0, 1.0 )
{ 0.0f,-0.5f, 0.0f, D3DCOLOR_COLORVALUE( 1.0, 1.0, 0.0, 1.0 )
{ 0.0f, 0.5f, 0.0f, D3DCOLOR_COLORVALUE( 0.0, 1.0, 1.0, 1.0 )
from the .txt file?

how do i put these data into the array?

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To get the data from the text file you read the data from the text file (which is in a know format) and then you break each line apart at the know points and put each part into the structure that you use.

example in english: (assuming one struct stored per line, and each piece of data seperated by a :)

Open File.
While not end of file
Read line
While not the end of the line
Read the characters until the : and place it in its part of the data structure
End While
End While

Hope this helps.

Apoligises if I haven't understood your question.

Dragoncar

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This topic is 4716 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

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