/// <summary>
/// Set the possible positions that a block can start in
/// </summary>
private void setPossiblePositions(ref BlockStartPosition[] bucket)
{
if (loadedPositions == null || loadedPositions.Count == 0)
{
setKnownPossiblePositions(ref bucket);
setKnownPossiblePositions(ref bucket);
}
else
{
int count = 0;
foreach (String[] block in loadedPositions)
{
bucket[count] = new BlockStartPosition();
bucket[count].position = new Boolean[block.Length, block.Length];
// load the positions
for (var row = 0; row < block.Length; row++)
{
char[] rowArr = block[row].ToCharArray();
for (var col = 0; col < block[row].Length; col++)
{
bucket[count].position[row, col] = rowArr[col] == BlockLoader.solidIndicator;
}
}
// give it a random color. Pretty ^_^
KnownColor[] names = (KnownColor[])Enum.GetValues(typeof(KnownColor));
KnownColor randomColorName = names[randGen.Next(names.Length)];
bucket[count].color = Color.FromKnownColor(randomColorName);
count++;
}
}
shuffle(ref bucket);
}
/// <summary>
/// A method of tracking which blocks have been spawned recently, creating a bucket which
/// prevents long strings of the same block.
/// </summary>
public BlockPositionSpawner()
{
currentBucket = new BlockStartPosition[7];
nextBucket = new BlockStartPosition[7];
setPossiblePositions(ref currentBucket);
setPossiblePositions(ref nextBucket);
}
/// <summary>
/// A block (tetromino) that falls down the grid
/// </summary>
/// <param name="positionSpawner">The position spawner to determine which block it should be</param>
public Block(BlockPositionSpawner positionSpawner)
{
// decide which block it is
Random random = new Random();
BlockStartPosition startPos = positionSpawner.Next();
squares = startPos.position;
color = startPos.color;
// set the initial position
x = 3;
y = 0;
}
/// <summary>
/// Constructor
/// </summary>
public Block()
{
// decide which block it is
Random random = new Random();
BlockStartPosition startPos = new BlockStartPosition();
startPos = new PossibleBlockStartPositions().positions[random.Next(7)];
squares = startPos.position;
color = startPos.color;
// set the initial position
x = 3;
y = 0;
}
/// <summary>
/// Returns the position of the next block to play with
/// </summary>
/// <returns>The position block to play with</returns>
public BlockStartPosition Next()
{
BlockStartPosition blockToReturn = currentBucket[nextBlock];
currentBucket[nextBlock] = nextBucket[nextBlock];
nextBlock++;
if (nextBlock >= currentBucket.Length)
{
nextBlock = 0;
setPossiblePositions(ref nextBucket);
}
return(blockToReturn);
}
/// <summary>
/// Create a block position spawner where the block positions are loaded from a file
/// </summary>
/// <param name="name">The name of the file to load</param>
public BlockPositionSpawner(String name)
{
loadedPositions = BlockLoader.load(name);
if (loadedPositions != null && loadedPositions.Count != 0)
{
currentBucket = new BlockStartPosition[loadedPositions.Count];
nextBucket = new BlockStartPosition[loadedPositions.Count];
}
else
{
currentBucket = new BlockStartPosition[7];
nextBucket = new BlockStartPosition[7];
}
setPossiblePositions(ref currentBucket);
setPossiblePositions(ref nextBucket);
}
/// <summary>
/// Specify the possible positions that a block can start in
/// </summary>
private void setPossiblePositions()
{
// straight across in a line
positions[0] = new BlockStartPosition();
positions[0].position = new Boolean[, ]
{
{ false, false, false, false },
{ false, false, false, false },
{ true, true, true, true },
{ false, false, false, false }
};
positions[0].color = Color.Cyan;
// L with a spike on the left
positions[1] = new BlockStartPosition();
positions[1].position = new Boolean[, ]
{
{ false, false, false, false },
{ false, true, false, false },
{ false, true, true, true },
{ false, false, false, false }
};
positions[1].color = Color.Blue;
// L with a spike on the right
positions[2] = new BlockStartPosition();
positions[2].position = new Boolean[, ]
{
{ false, false, false, false },
{ false, false, false, true },
{ false, true, true, true },
{ false, false, false, false }
};
positions[2].color = Color.Orange;
// square
positions[3] = new BlockStartPosition();
positions[3].position = new Boolean[, ]
{
{ false, false, false, false },
{ false, true, true, false },
{ false, true, true, false },
{ false, false, false, false }
};
positions[3].color = Color.Yellow;
// zig-zag up to the right
positions[4] = new BlockStartPosition();
positions[4].position = new Boolean[, ]
{
{ false, false, false, false },
{ false, false, true, true },
{ false, true, true, false },
{ false, false, false, false }
};
positions[4].color = Color.Red;
// zig-zag up to the left
positions[5] = new BlockStartPosition();
positions[5].position = new Boolean[, ]
{
{ false, false, false, false },
{ true, true, false, false },
{ false, true, true, false },
{ false, false, false, false }
};
positions[5].color = Color.Green;
// T shape
positions[6] = new BlockStartPosition();
positions[6].position = new Boolean[, ]
{
{ false, false, false, false },
{ false, false, true, false },
{ false, true, true, true },
{ false, false, false, false }
};
positions[6].color = Color.Purple;
}
/// <summary>
/// Specify the possible positions that a block can start in if nothing has loaded from a file
/// </summary>
private void setKnownPossiblePositions(ref BlockStartPosition[] bucket)
{
// straight across in a line
bucket[0] = new BlockStartPosition();
bucket[0].position = new Boolean[, ]
{
{ false, false, false, false },
{ false, false, false, false },
{ true, true, true, true },
{ false, false, false, false }
};
bucket[0].color = Color.Cyan;
// L with a spike on the left
bucket[1] = new BlockStartPosition();
bucket[1].position = new Boolean[, ]
{
{ false, false, false, false },
{ false, true, false, false },
{ false, true, true, true },
{ false, false, false, false }
};
bucket[1].color = Color.Blue;
// L with a spike on the right
bucket[2] = new BlockStartPosition();
bucket[2].position = new Boolean[, ]
{
{ false, false, false, false },
{ false, false, false, true },
{ false, true, true, true },
{ false, false, false, false }
};
bucket[2].color = Color.Orange;
// square
bucket[3] = new BlockStartPosition();
bucket[3].position = new Boolean[, ]
{
{ false, false, false, false },
{ false, true, true, false },
{ false, true, true, false },
{ false, false, false, false }
};
bucket[3].color = Color.Yellow;
// zig-zag up to the right
bucket[4] = new BlockStartPosition();
bucket[4].position = new Boolean[, ]
{
{ false, false, false, false },
{ false, false, true, true },
{ false, true, true, false },
{ false, false, false, false }
};
bucket[4].color = Color.Red;
// zig-zag up to the left
bucket[5] = new BlockStartPosition();
bucket[5].position = new Boolean[, ]
{
{ false, false, false, false },
{ true, true, false, false },
{ false, true, true, false },
{ false, false, false, false }
};
bucket[5].color = Color.Green;
// T shape
bucket[6] = new BlockStartPosition();
bucket[6].position = new Boolean[, ]
{
{ false, false, false, false },
{ false, false, true, false },
{ false, true, true, true },
{ false, false, false, false }
};
bucket[6].color = Color.Purple;
}