public Block(Game game, Vector2 position, BlockColour blockColour)
: base(null, position, new Point(77, 28), 1)
{
_whiteTexture = game.Content.Load<Texture2D>(@"Sprites/WhiteBlock");
_blueTexture = game.Content.Load<Texture2D>(@"Sprites/BlueBlock");
_redTexture = game.Content.Load<Texture2D>(@"Sprites/RedBlock");
BlockColour = blockColour;
}
private BlockColour RandomColour(Difficulty diff, BlockColour n1)
{
return RandomColour(diff, n1, BlockColour.Empty);
}
/// <summary>
/// Picks a random block colour which is not the same as any of the passed colours.
/// </summary>
private BlockColour RandomColour(Difficulty diff, BlockColour n1, BlockColour n2)
{
int count;
int bump1 = 10, bump2 = 10; // Initially higher than any possible value so they don't interfere
if ((n1 == BlockColour.Empty) && (n2 == BlockColour.Empty))
{
count = (diff > Difficulty.Normal) ? 7 : 6;
}
else if ((n1 == n2) || (n2 == BlockColour.Empty) || (n1 == BlockColour.Empty))
{
count = (diff > Difficulty.Normal) ? 6 : 5;
bump1 = (int)n1;
}
else
{
count = (diff > Difficulty.Normal) ? 5 : 4;
bump1 = (int)n1;
bump2 = (int)n2;
if (bump1 > bump2) // sort
{
int w = bump2;
bump2 = bump1;
bump1 = w;
}
}
int result = therand.Next(1, count);
if (result >= bump1) result++;
if (result >= bump2) result++;
return (BlockColour)(result);
}
