public static CityChange GetChange(JsonCityMatrix oldCity, JsonCityMatrix newCity)
{
var oldDensities = oldCity.objects.densities;
var newDensities = newCity.objects.densities;
for (int i = 0; i < oldCity.objects.densities.Length; i++)
{
if (oldDensities[i] != newDensities[i])
{
return(new DensityChange(i, oldDensities[i], newDensities[i]));
}
}
var newCityBuildings = JsonCityMatrix.GetBuildingMap(newCity);
foreach (var b in oldCity.grid)
{
var newB = newCityBuildings[new Pos2D(b.x, b.y)];
if (b.type != newB.type)
{
var oldDens = b.type >= 0 && b.type < oldDensities.Length ? oldDensities[b.type] : 0;
var newDens = newB.type >= 0 && newB.type < newDensities.Length ? newDensities[newB.type] : 0;
return(new BuildingChange(new Pos2D(b.x, b.y), b.type, newB.type,
oldDens, newDens));
}
}
return(null);
}
private void Update()
{
if (packet == null)
{
return;
}
var hasChanged = false;
var grid = JsonCityMatrix.GetBuildingMap(packet.predict);
for (int i = 0; i < 30; i++)
{
for (int j = 0; j < 30; j++)
{
var pos = new Pos2D(i, j);
if (!grid.ContainsKey(pos))
{
continue;
}
hasChanged = hasChanged || grid[pos].type != GridDecoder.currentIds[i, j];
grid[new Pos2D(i, j)].type = GridDecoder.currentIds[i, j];
}
}
if (hasChanged)
{
foreach (var o in this._observers)
{
o.OnNext(packet);
}
}
if (this.UdpSubject == this._prevSubject)
{
return;
}
this._unsubscriber.Dispose();
this._unsubscriber = this.UdpSubject.Subscribe(this);
this._prevSubject = this.UdpSubject;
}
