static bool tryParseCircle(ref TouchItem touchItem)
{
int count = touchItem.positions.Count;
//print("positions count is " + count);
if (count < 5) return false;
float cx = 0, cy = 0;
foreach (Vector2 pos in touchItem.positions)
{
cx += pos.x; cy += pos.y;
}
cx /= count; cy /= count;
Vector2 center = new Vector2(cx, cy);
float midleRadius = 0, minRadius = float.MaxValue, maxRadius = 0;
foreach (Vector2 pos in touchItem.positions)
{
float rad = Vector2.Distance(center, pos);
midleRadius += rad;
if (rad < minRadius)
minRadius = rad;
if (rad > maxRadius)
maxRadius = rad;
}
midleRadius /= count;
short pF = axisPart((Vector2)touchItem.positions[1] - (Vector2)touchItem.positions[0]);
int wrongsCW = 0, wrongsCCW = 0;
int partChCW = 0, partChCCW = 0;
short cur = pF;
string poss = "";
for (int i = 2; i < count; i++)
{
short next = axisPart((Vector2)touchItem.positions[i] - (Vector2)touchItem.positions[i - 1]);
int cw = axisNext(cur, next, true),
ccw = axisNext(cur, next, false);
poss += next.ToString();
if (cw <= -1)
wrongsCW++;
if (ccw <= -1)
wrongsCCW++;
if (cw == 1)
partChCW++;
if (ccw == 1)
partChCCW++;
cur = next;
}
partChCW = Mathf.RoundToInt((float)partChCW / 4f);
partChCCW = Mathf.RoundToInt((float)partChCCW / 4f);
int wrongs = Mathf.Min(wrongsCCW, wrongsCW),
partsCh = Mathf.Max(partChCW, partChCCW);
if (wrongs == wrongsCCW) partsCh = -partsCh;
wrongs = (int)((float)wrongs / count * 100);
//print(poss);
//print("wrongs: " + wrongs + "% rotates:" + partsCh);
if (wrongs > 25)
{
//print("to many wrongs");
return false;
}
int[] counts = new int[4];
foreach (Vector2 pos in touchItem.positions)
counts[axisPart(pos - center)]++;
int midlePartsCount = 0;
foreach (int x in counts)
midlePartsCount += x;
midlePartsCount /= 4;
foreach (int x in counts)
if (Mathf.Abs(midlePartsCount - x) > 5)
{
//print("incorrect parts count");
return false;
}
float minRadiusD = float.MaxValue, maxRadiusD = 0;
foreach (Vector2 pos in touchItem.positions)
{
float curDelta = Vector2.Distance(pos, center) / midleRadius * 100;
if (curDelta > maxRadiusD)
maxRadiusD = curDelta;
if (curDelta < minRadiusD)
minRadiusD = curDelta;
}
//print("min radius delta: " + minRadiusD + "% max radius delta: " + maxRadiusD + "%");
if (minRadiusD < 45 || maxRadiusD > 160)
{
//print("wrong radiuses");
return false;
}
//print("circle!!");
GistureCircle param = new GistureCircle();
param.center = center;
param.radius = midleRadius;
param.rotates = partsCh;
touchItem.gistureParams = param;
return true;
}
static bool tryParseCircle(ref TouchItem touchItem)
{
int count = touchItem.positions.Count;
//print("positions count is " + count);
if (count < 5)
{
return(false);
}
float cx = 0, cy = 0;
foreach (Vector2 pos in touchItem.positions)
{
cx += pos.x; cy += pos.y;
}
cx /= count; cy /= count;
Vector2 center = new Vector2(cx, cy);
float midleRadius = 0, minRadius = float.MaxValue, maxRadius = 0;
foreach (Vector2 pos in touchItem.positions)
{
float rad = Vector2.Distance(center, pos);
midleRadius += rad;
if (rad < minRadius)
{
minRadius = rad;
}
if (rad > maxRadius)
{
maxRadius = rad;
}
}
midleRadius /= count;
short pF = axisPart((Vector2)touchItem.positions[1] - (Vector2)touchItem.positions[0]);
int wrongsCW = 0, wrongsCCW = 0;
int partChCW = 0, partChCCW = 0;
short cur = pF;
string poss = "";
for (int i = 2; i < count; i++)
{
short next = axisPart((Vector2)touchItem.positions[i] - (Vector2)touchItem.positions[i - 1]);
int cw = axisNext(cur, next, true),
ccw = axisNext(cur, next, false);
poss += next.ToString();
if (cw <= -1)
{
wrongsCW++;
}
if (ccw <= -1)
{
wrongsCCW++;
}
if (cw == 1)
{
partChCW++;
}
if (ccw == 1)
{
partChCCW++;
}
cur = next;
}
partChCW = Mathf.RoundToInt((float)partChCW / 4f);
partChCCW = Mathf.RoundToInt((float)partChCCW / 4f);
int wrongs = Mathf.Min(wrongsCCW, wrongsCW),
partsCh = Mathf.Max(partChCW, partChCCW);
if (wrongs == wrongsCCW)
{
partsCh = -partsCh;
}
wrongs = (int)((float)wrongs / count * 100);
//print(poss);
//print("wrongs: " + wrongs + "% rotates:" + partsCh);
if (wrongs > 25)
{
//print("to many wrongs");
return(false);
}
int[] counts = new int[4];
foreach (Vector2 pos in touchItem.positions)
{
counts[axisPart(pos - center)]++;
}
int midlePartsCount = 0;
foreach (int x in counts)
{
midlePartsCount += x;
}
midlePartsCount /= 4;
foreach (int x in counts)
{
if (Mathf.Abs(midlePartsCount - x) > 5)
{
//print("incorrect parts count");
return(false);
}
}
float minRadiusD = float.MaxValue, maxRadiusD = 0;
foreach (Vector2 pos in touchItem.positions)
{
float curDelta = Vector2.Distance(pos, center) / midleRadius * 100;
if (curDelta > maxRadiusD)
{
maxRadiusD = curDelta;
}
if (curDelta < minRadiusD)
{
minRadiusD = curDelta;
}
}
//print("min radius delta: " + minRadiusD + "% max radius delta: " + maxRadiusD + "%");
if (minRadiusD < 45 || maxRadiusD > 160)
{
//print("wrong radiuses");
return(false);
}
//print("circle!!");
GistureCircle param = new GistureCircle();
param.center = center;
param.radius = midleRadius;
param.rotates = partsCh;
touchItem.gistureParams = param;
return(true);
}
