private void OnDownHandler(UUIEventListener listener)
{
int touchID = listener.pointerEventData.pointerId;
Vector3 pos = listener.pointerEventData.position;
m_panelTouchPosDict[touchID] = pos;
if (m_panelTouchPosDict.Count == 2)
{
Vector2 from = new Vector2();
Vector2 to = new Vector2();
int index = 0;
foreach (var touch in m_panelTouchPosDict)
{
m_rawScaleFinger[index] = touch.Key;
if (index++ == 0)
{
from = touch.Value;
}
else
{
to = touch.Value;
}
}
m_rawRect = UIHelper.GetRect(from, to);
}
}
internal float GetRectScale(ref TRect rect, ref TRect rawRect)
{
if (rect.width / rect.height > rawRect.width / rawRect.height)
{
return(rect.width / rawRect.width);
}
else
{
return(rect.height / rawRect.height);
}
}
public bool IsOverLapWith(TRect rect)
{
float verticalDistance = Mathf.Abs(y - rect.y);; //垂直距离
float horizontalDistance = Mathf.Abs(x - rect.x);; //水平距离
float verticalThreshold = (height + rect.height) / 2; //两矩形分离的垂直临界值
float horizontalThreshold = (width + rect.width) / 2; //两矩形分离的水平临界值
if (verticalDistance > verticalThreshold || horizontalDistance > horizontalThreshold)
{
return(false);
}
return(true);
}
public bool IsOverLapWith(TRect rect)
{
float halfWidth = rect.width * 0.5f;
float halfHeight = rect.height * 0.5f;
float distanceX = Mathf.Abs(x - rect.x);
float distanceY = Mathf.Abs(y - rect.y);
if (distanceX > (halfWidth + radius) || distanceY > (halfHeight + radius))
{
return(false);
}
else if (distanceX <= halfWidth || distanceY <= halfHeight)
{
return(true);
}
float sq = (distanceX - halfWidth) * (distanceX - halfWidth)
+ (distanceY - halfHeight) * (distanceY - halfHeight);
return(sq <= radius * radius);
}
private void OnDragHandlerScale(UUIEventListener listener)
{
int id = listener.pointerEventData.pointerId;
Vector2 delta = listener.pointerEventData.delta;
Vector2 pos = listener.pointerEventData.position;
Vector2 lastPos = pos - delta;
m_panelTouchPosDict[id] = pos;
if (m_panelTouchPosDict.Count < 2 || (m_rawScaleFinger[0] != id && m_rawScaleFinger[1] != id))
{
if (onFingerDrag != null)
{
onFingerDrag.Invoke(delta);
}
return;
}
Vector2 sndPos = Vector2.zero;
if (m_rawScaleFinger[0] == id)
{
sndPos = m_panelTouchPosDict[m_rawScaleFinger[1]];
}
else
{
sndPos = m_panelTouchPosDict[m_rawScaleFinger[0]];
}
TRect lastRect = UIHelper.GetRect(lastPos, sndPos);
TRect curRect = UIHelper.GetRect(pos, sndPos);
float lastScale = GetRectScale(ref lastRect, ref m_rawRect);
float curScale = GetRectScale(ref curRect, ref m_rawRect);
if (onFingerScroll != null)
{
onFingerScroll.Invoke(curScale / lastScale);
}
}
public TEllipse(TRect boundingRect) : this(boundingRect.center, boundingRect.size)
{
}
public static TRect Lerp(TRect a, TRect b, float t)
{
return(new TRect(Vector2.Lerp(a.center, b.center, t), Vector2.Lerp(a.size, b.size, t)));
}
