private static void DownloadTiles(String OutDirectory, IndexRect r)
{
Directory.CreateDirectory(OutDirectory);
var c = new WebClient();
Console.WriteLine("Идёт загрузка:");
for (int x = r.Left; x <= r.Right; x++)
{
for (int y = r.Top; y <= r.Bottom; y++)
{
String from = String.Format("http://c.tile.openstreetmap.org/13/{0}/{1}.png", x, y);
String to = Path.Combine(OutDirectory, String.Format("{0}-{1}.png", x, y));
int AttemptsCount = 3;
while (AttemptsCount > 0)
{
try
{
c.DownloadFile(from, to);
Console.Write('.');
break;
}
catch (WebException wexc)
{
AttemptsCount--;
if (AttemptsCount < 0) throw new Exception(String.Format("Не удалось загрузить тайл [{0} {1}]", x, y), wexc);
}
}
}
Console.WriteLine();
}
}
// @todo stoppedに入った点が持っていたエネルギーを外側に逃がす
public void AddCircleMovement(Vector3 fromLocal, Vector3 toLocal, float strength, float radius, int objectMask)
{
Vector2 p1 = new Vector2(toLocal.x, toLocal.z);
Vector2 p0 = new Vector2(fromLocal.x, fromLocal.z);
Vector2 v = p1 - p0;
float d = v.magnitude;
if (d < 1e-6)
{
return;
}
// 移動先の円内のオフセット総計
float totalOffset = 0f;
IndexRect rect1 = localRectToIndex(p1.x, p1.y, p1.x, p1.y, radius);
for (int i = rect1.i0; i <= rect1.i1; i++)
{
int k = rect1.j0 + i * countX;
for (int j = rect1.j0; j <= rect1.j1; j++, k++)
{
Vector3 p3 = particlesData[k].position;
Vector2 p = new Vector2(p3.x, p3.z);
float lFrom1 = (p - p1).magnitude;
if (lFrom1 < radius)
{
totalOffset += particlesData[k].force;
particlesData[k].position.Set(p3.x, 0f, p3.z);
particlesData[k].velocity = 0f;
particlesData[k].force = 0f;
particlesData[k].stopped |= objectMask;
}
}
}
//
float strengthInner = strength;
float minDistance = new Vector2(sizeX / divisionX, sizeZ / divisionZ).magnitude *minDistanceCoef;
if (d < minDistance)
{
strengthInner *= d / minDistance;
d = minDistance;
v = v.normalized * d;
p0 = p1 - v;
}
Vector2 vForward = v.normalized / d;
Vector2 vSide = (new Vector2(-v.y, v.x)).normalized / radius;
totalOffset /= strengthInner;
// 押し出された水の量を計算
float piR_d = Mathf.PI * radius + d;
float s = piR_d * piR_d + 2f * Mathf.PI * (2 * radius * d + totalOffset);
s = (Mathf.Sqrt(s) - piR_d) / Mathf.PI;
float strengthOuter = strength;
if (s < minDistance)
{
strengthOuter *= s / minDistance;
s = minDistance;
}
float radiusOuter = radius + s;
Vector2 vSideOuter = vSide.normalized / radiusOuter;
//
float z0 = Mathf.Min(p0.y, p1.y);
float z1 = Mathf.Max(p0.y, p1.y);
float x0 = Mathf.Min(p0.x, p1.x);
float x1 = Mathf.Max(p0.x, p1.x);
IndexRect rect = localRectToIndex(x0, z0, x1, z1, radiusOuter);
for (int i = rect.i0; i <= rect.i1; i++)
{
int k = rect.j0 + i * countX;
for (int j = rect.j0; j <= rect.j1; j++, k++)
{
Vector3 p3 = particlesData[k].position;
Vector2 p = new Vector2(p3.x, p3.z);
Vector2 pFrom0 = p - p0;
Vector2 pFrom1 = p - p1;
float lFrom0 = pFrom0.magnitude;
float lFrom1 = pFrom1.magnitude;
if (lFrom1 < radius)
{
continue;
}
// 移動先の円外
int stopped = particlesData[k].stopped &= ~objectMask;
if (stopped != 0)
{
continue;
}
float forward = Vector2.Dot(pFrom0, vForward);
float side = Mathf.Abs(Vector2.Dot(pFrom0, vSide));
bool forwardIn = 0 < forward && forward < 1;
if (lFrom0 < radius || forwardIn && side < 1)
{
// 移動元の円より内側 or 軌跡の内側
particlesData[k].force -= strengthInner;
}
else
{
float sideOuter = Mathf.Abs(Vector2.Dot(pFrom0, vSideOuter));
if (lFrom1 < radius + s || forwardIn && sideOuter < forward)
{
// 移動先から押し出し半径の内側 or 軌跡の側面
particlesData[k].force += strengthOuter;
}
}
}
}
}
