public bool IsMoveValid(int dx, int dy, int dr)
{
Block temp = new Block(m_theGame);
temp.Clone(m_theGame.CurrentBlock);
temp.X += dx;
temp.Y += dy;
temp.Rotation = (temp.Rotation + 4 + dr) % 4;
// get coordinates
float[] x = new float[4];
float[] y = new float[4];
temp.ToVirtualCoordinates(ref x, ref y);
// validate...
for (int i = 0; i < 4; i++)
{
// out of horizontal border
if (x[i] < 0 || x[i] >= Game.Width)
{
return false;
}
// out of vertical border
if (y[i] < 0)
{
return false;
}
if (y[i] >= Game.Height)
{
return true;
}
// on another block
if (m_theGame.Block[(int)x[i], (int)y[i]] != 0)
{
return false;
}
}
// indicate success
return true;
}
