public void Spawn(Arena arena)
{
var topLeftY = _rng.Next(arena.Height - _sideLength + 1);
var topLeftX = _rng.Next(arena.Width - _sideLength + 1);
var cellsInSquare = CollectCells(topLeftY, topLeftX, arena);
if (cellsInSquare.Any(c => c is ISnekBody))
{
return; // Spawn Failed
}
// Found suitable location, calculate bottom right point and collect all points that comprise the square.
var bottomRight = new Point(topLeftX + _sideLength - 1, topLeftY + _sideLength - 1);
var points = new List <Point>();
for (int y = topLeftY; y < bottomRight.Y; ++y)
{
for (int x = topLeftX; x < bottomRight.X; ++x)
{
points.Add(new Point(x, y));
}
}
foreach (var point in points)
{
arena.CreateFood(point.X, point.Y);
}
}
public void Spawn(Arena arena)
{
for (int i = 0; i < _spawnAmount; ++i)
{
// Generate random points in the arena until we find an unoccupied one.
var y = _rng.Next(arena.Height);
var x = _rng.Next(arena.Width);
var cell = arena.GetCell(x, y);
if (cell is ISnekBody)
{
continue; // Spawn Failed
}
arena.CreateFood(x, y);
}
}
public void Spawn(Arena arena)
{
int spikeLength = _lineLength / 2; // Lengths of the "spikes" that stick out of the center.
var centerY = _rng.Next(spikeLength, arena.Height - spikeLength);
var centerX = _rng.Next(spikeLength, arena.Width - spikeLength);
var cellsInPlus = CollectCells(centerX, centerY, spikeLength, arena);
if (cellsInPlus.Any(c => c is ISnekBody))
{
return; // Spawn Failed
}
// Collect points
int minX = centerX - spikeLength;
int maxX = centerX + spikeLength;
int minY = centerY - spikeLength;
int maxY = centerY + spikeLength;
var points = new List <Point>();
// Collect horizontal line first
for (int x = minX; x <= maxX; ++x)
{
points.Add(new Point(x, centerY));
}
// Collect vertical line (skipping the center)
for (int y = minY; y <= maxY; ++y)
{
if (y != centerY)
{
points.Add(new Point(centerX, y));
}
}
foreach (var point in points)
{
arena.CreateFood(point.X, point.Y);
}
}