internal void ClearPropertyMap()
{
// when clearing the property map we want to retain the styles that we have inherited from elsewhere
// to do this, we need to read in the inherited values, store them, clear the map, then write the values back
LightList <StyleProperty> inherited = LightList <StyleProperty> .Get();
inherited.EnsureCapacity(StyleUtil.InheritedProperties.Count);
StyleProperty[] inheritedArray = inherited.Array;
for (int i = 0; i < StyleUtil.InheritedProperties.Count; i++)
{
int key = BitUtil.SetHighLowBits(1, (int)StyleUtil.InheritedProperties[i]);
if (propertyMap.TryGetValue(key, out StyleProperty inheritedValue))
{
inherited.AddUnchecked(inheritedValue);
}
}
propertyMap.Clear();
// re-apply values
for (int i = 0; i < inherited.Count; i++)
{
int key = BitUtil.SetHighLowBits(1, (int)inheritedArray[i].propertyId);
propertyMap.Add(key, inheritedArray[i]);
}
LightList <StyleProperty> .Release(ref inherited);
}
public static int Arc(LightList <Vector2> output, Vector2 p1, float rx, float ry, float angle, bool largeArcFlag, bool sweepFlag, Vector2 p2, int vpm = 1)
{
int originalSize = output.Count;
float _radian = (angle * Mathf.PI / 180.0f);
float _CosRadian = Mathf.Cos(_radian);
float _SinRadian = Mathf.Sin(_radian);
float temp1 = (p1.x - p2.x) / 2.0f;
float temp2 = (p1.y - p2.y) / 2.0f;
float tx = (_CosRadian * temp1) + (_SinRadian * temp2);
float ty = (-_SinRadian * temp1) + (_CosRadian * temp2);
double trx2 = rx * rx;
double try2 = ry * ry;
double tx2 = tx * tx;
double ty2 = ty * ty;
double radiiCheck = tx2 / trx2 + ty2 / try2;
if (radiiCheck > 1)
{
float sqrt = Mathf.Sqrt((float)radiiCheck);
rx = sqrt * rx;
ry = sqrt * ry;
trx2 = rx * rx;
try2 = ry * ry;
}
double tm1 = (trx2 * try2 - trx2 * ty2 - try2 * tx2) / (trx2 * ty2 + try2 * tx2);
tm1 = (tm1 < 0) ? 0 : tm1;
float tm2 = (largeArcFlag == sweepFlag) ? -Mathf.Sqrt((float)tm1) : Mathf.Sqrt((float)tm1);
float tcx = tm2 * ((rx * ty) / ry);
float tcy = tm2 * (-(ry * tx) / rx);
float cx = _CosRadian * tcx - _SinRadian * tcy + ((p1.x + p2.x) / 2.0f);
float cy = _SinRadian * tcx + _CosRadian * tcy + ((p1.y + p2.y) / 2.0f);
float ux = (tx - tcx) / rx;
float uy = (ty - tcy) / ry;
float vx = (-tx - tcx) / rx;
float vy = (-ty - tcy) / ry;
float n = Mathf.Sqrt((ux * ux) + (uy * uy));
float p = ux;
float _angle = (uy < 0) ? -Mathf.Acos(p / n) : Mathf.Acos(p / n);
_angle = _angle * 180.0f / Mathf.PI;
_angle %= 360f;
n = Mathf.Sqrt((ux * ux + uy * uy) * (vx * vx + vy * vy));
p = ux * vx + uy * vy;
float t = p / n;
if ((Mathf.Abs(t) >= 0.99999f) && (Mathf.Abs(t) < 1.000009f))
{
t = t > 0 ? 1f : -1f;
}
float _delta = (ux * vy - uy * vx < 0) ? -Mathf.Acos(t) : Mathf.Acos(t);
_delta = _delta * 180.0f / Mathf.PI;
if (!sweepFlag && _delta > 0)
{
_delta -= 360f;
}
else if (sweepFlag && _delta < 0)
{
_delta += 360f;
}
_delta %= 360f;
int number = Mathf.RoundToInt(Mathf.Clamp((100f / vpm) * Mathf.Abs(_delta) / 360f, 2, 100));
float deltaT = _delta / number;
output.EnsureAdditionalCapacity(number + 1);
for (int i = 0; i <= number; i++)
{
float t_angle = (deltaT * i + _angle) * Mathf.PI / 180.0f;
float cos = Mathf.Cos(t_angle);
float sin = Mathf.Sin(t_angle);
output.AddUnchecked(new Vector2(
_CosRadian * rx * cos - _SinRadian * ry * sin + cx,
_SinRadian * rx * cos + _CosRadian * ry * sin + cy
));
}
return(output.Count - originalSize);
}