/// <summary>
/// Creates a new Snapshot
/// </summary>
/// <param name="tick">The DoTick, needed to sort
/// them later; only incremented</param>
/// <param name="cells">The Cells during the tick</param>
/// <param name="deaths">The dead humans since the last tick</param>
private TickSnapshot(long tick, CellSnapshot[] cells, HumanSnapshot[] deaths)
{
Stamp = DateTime.Now;
Tick = tick;
Name = String.Format("{0:D3}", Tick) + "_[" + Stamp.ToString("HH-mm-ss") + "]";
Cells = cells;
Deaths = deaths;
}
/// <summary>
/// Initializes a new Snapshot from a file
/// </summary>
/// <param name="bytes">the byte[] from a file</param>
/// <returns>A new Snapshot</returns>
public static TickSnapshot InitializeFromFile(byte[] bytes)
{
if (bytes[0] != HEADER)
throw new HeaderCorruptException("Header damaged, should " + HEADER);
long tick = BitConverter.ToInt64(bytes, 1);
int cellCount = BitConverter.ToInt32(bytes, 9);
CellSnapshot[] cells = new CellSnapshot[cellCount];
for (int i = 0; i < cellCount; ++i)
{
byte[] temp = new byte[CellSnapshot.LENGTH];
Array.Copy(bytes, CONSTLENGTH + i * CellSnapshot.LENGTH, temp, 0, CellSnapshot.LENGTH);
cells[i] = CellSnapshot.InitializeFromFile(temp);
}
#if DEBUG
Console.WriteLine("Done parsing Snapshots");
#endif
int offset = 13 + cellCount * CellSnapshot.LENGTH;
int deathCount = BitConverter.ToInt32(bytes, offset);
HumanSnapshot[] deaths = new HumanSnapshot[deathCount];
for (int i = 0; i < deathCount; ++i)
{
byte[] temp = new byte[HumanSnapshot.LENGTH];
Array.Copy(bytes, CONSTLENGTH + (cellCount * CellSnapshot.LENGTH) + i * HumanSnapshot.LENGTH, temp, 0, HumanSnapshot.LENGTH);
deaths[i] = HumanSnapshot.InitializeFromFile(temp);
}
#if DEBUG
Console.WriteLine("Done parsing HumanSnapshots!");
#endif
return new TickSnapshot(tick, cells, deaths);
}
/// <summary>
/// Initializes a new Snapshot from Runtime
/// </summary>
/// <param name ="tick">DoTick</param>
/// <param name ="cells">Cells to be saved</param>
/// <param name ="deaths">Dead Humans</param>
/// <returns></returns>
public static TickSnapshot IntitializeFromRuntime(long tick, CellSnapshot[] cells, HumanSnapshot[] deaths)
{
return new TickSnapshot(tick, cells, deaths);
}
/// <summary>
/// Takes a Snapshot of the current state and starts to write all Snapshots that are left
/// </summary>
/// <param name="simData">Current SimulationData to take a Snapshot of</param>
public void TakeSnapshot(SimulationData simData, long tick)
{
int cellCount = simData.Cells.Count(x => x != null);
CellSnapshot[] cells = new CellSnapshot[cellCount];
int pos = 0;
int i = 0;
foreach (PopulationCell cell in simData.Cells) // Not parallel...
{
if (cell != null)
cells[i++] = CellSnapshot.InitializeFromRuntime(cell, pos);
++pos;
}
TickSnapshot snap = TickSnapshot.IntitializeFromRuntime(tick, cells, simData.Deaths.NotNullIterator().ToArray());
simData.ClearDeaths();
_snapshots.Enqueue(snap);
TookSnapshot(this, null);
}
