Need some help with Directx 9
Author
I have just started working with directx, but have used c++ for years. I want to create a program that generates a full checkerboard pattern on the screen then alterates between black and white by flipping ( an alternating checkerboard pattern at some set speed. After looking at many tutorials, I am need of asking for help. I have created 1 Black and White Check Pair by using 4 triangles and g_pd3dDevice->DrawPrimitive( D3DPT_TRIANGLELIST, 0, 4 );
There has to be an easier way I can do the entire screen without setting vertices for each and every Check on the board. Can i "copy" the pair and just paste it across and down the board? Then I will create another image but have the white/blacks reversed.
Can someone help me out, even a flow chart of what I should do will help me alot, so I knew what tutorials to search for.
Thanks alot
You're correct in assuming a single vertex buffer for a single square should be adequate.
In pseudo-code:
For each "draw," set the world transform for the current row,column pair. Something like:
D3DXMATRIX mat;
D3DXMatrixTranslation(&mat, row*squareWidth, 0, column*squareHeight);
device->SetTransform(D3DTS_WORLD,&mat);
//draw
In pseudo-code:
loop for 8 squares: loop for 8 squares: set the world transform draw rectangle (two triangles) at row,column bump the column number change the color end loop back to column 0 bump to next rowend loopFor each "draw," set the world transform for the current row,column pair. Something like:
D3DXMATRIX mat;
D3DXMatrixTranslation(&mat, row*squareWidth, 0, column*squareHeight);
device->SetTransform(D3DTS_WORLD,&mat);
//draw
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