protected static D3DXVECTOR2 GetNewVector(float heading)
{
var updatedMatrix = new D3DXMATRIX();
var transMatrix = new D3DXMATRIX();
var yRotationMatrix = new D3DXMATRIX();
//Set up the rotation matrix for the player model
D3DXMatrixRotationY(&yRotationMatrix, heading / 2);
//Set up the translation matrix
D3DXMatrixTranslation(&transMatrix, 0.0f, 0.0f, 0.0f);
//Combine out matrices
D3DXMatrixMultiply(&updatedMatrix, &yRotationMatrix, &transMatrix);
//Return new vector for player matrix.
return(new D3DXVECTOR2(updatedMatrix._31, updatedMatrix._33));
}
private static extern IntPtr D3DXMatrixTranslation(
out D3DXMATRIX pOut,
Single x,
Single y,
Single z
);
private static extern IntPtr D3DXMatrixRotationY(
out D3DXMATRIX pOut,
Single Angle
);
private static extern IntPtr D3DXMatrixMultiply(
out D3DXMATRIX pOut,
ref D3DXMATRIX pM1,
ref D3DXMATRIX pM2
);
