public void Update(GameTime game_time)
{
mCurrentGameTime = game_time;
// cache touches every update in case it's expensive to get
mTouches = Microsoft.Xna.Framework.Input.Touch.TouchPanel.GetState();
// gather what is needed to update triggers first
eContactChange count_change = UpdateTouchCount();
// update state machine last, possibly in new state
mStateMachine.Update(count_change);
}
protected override bool OnTouch(Microsoft.Xna.Framework.Input.Touch.TouchCollection touchs)
{
Vector2 lt = this.scenepos - (Orient) * this.scenescale;
Vector2 rb = lt + this.scenescale * Size;
List <Vector2> poss = new List <Vector2>();
//if (bTouch == false)
bool ntouchup = false;
Vector2 npos = Vector2.Zero;
{//检测位置
foreach (var t in touchs)
{
if (t.State == Microsoft.Xna.Framework.Input.Touch.TouchLocationState.Pressed || t.State == Microsoft.Xna.Framework.Input.Touch.TouchLocationState.Moved)
{
if (lt.X <= t.Position.X && t.Position.X <= rb.X &&
lt.Y <= t.Position.Y && t.Position.Y <= rb.Y)
{
poss.Add(t.Position);
}
}
if (t.State == Microsoft.Xna.Framework.Input.Touch.TouchLocationState.Released)
{
if (lt.X <= t.Position.X && t.Position.X <= rb.X &&
lt.Y <= t.Position.Y && t.Position.Y <= rb.Y)
{
npos = t.Position;
ntouchup = true;
}
}
}
}
if (poss.Count > 0)
{
foreach (var v in poss)
{
npos += v;
}
npos /= poss.Count;
}
if (bTouch == false && poss.Count > 0)//按下
{
oldpos = npos;
bTouch = true;
return(true);
}
else if (bTouch == true && poss.Count == 0)
{
if (ntouchup && !bdrag)
{
if ((npos - oldpos).Length() < 5)
{
for (int i = 0; i < UIItem.Count; i++)
{
Vector2 slt = UIItem[i].scenepos - (UIItem[i].Orient) * UIItem[i].scenescale;
Vector2 srb = slt + UIItem[i].scenescale * UIItem[i].Size;
if (slt.Y <= npos.Y && npos.Y <= srb.Y)
{
SelectedIndex = i;
break;
}
}
return(true);
}
//松开
oldpos = npos;
}
else
{
//离开
}
bTouch = false;
bdrag = false;
}
else if (poss.Count > 0) //drag
{
if ((npos - oldpos).Length() > 3)
{
bdrag = true;
dragpos -= npos.Y - oldpos.Y;
UpdatePos();
oldpos = npos;
}
return(true);
}
//处理选中逻辑
return(false);
}
protected override bool OnTouch(Microsoft.Xna.Framework.Input.Touch.TouchCollection touchs)
{
Vector2 lt = this.scenepos - (Orient) * this.scenescale;
Vector2 rb = lt + this.scenescale * Size;
bool ntouch = false;
bool ntouchup = false;
foreach (var t in touchs)
{
if (t.State == Microsoft.Xna.Framework.Input.Touch.TouchLocationState.Pressed || t.State == Microsoft.Xna.Framework.Input.Touch.TouchLocationState.Moved)
{
if (lt.X <= t.Position.X && t.Position.X <= rb.X &&
lt.Y <= t.Position.Y && t.Position.Y <= rb.Y)
{
ntouch = true;
break;
}
}
if (t.State == Microsoft.Xna.Framework.Input.Touch.TouchLocationState.Released || t.State == Microsoft.Xna.Framework.Input.Touch.TouchLocationState.Invalid)
{
if (lt.X <= t.Position.X && t.Position.X <= rb.X &&
lt.Y <= t.Position.Y && t.Position.Y <= rb.Y)
{
ntouchup = true;
break;
}
}
}
if (ntouch == true && bTouch == false)
{
//按下
bTouch = true;
if (onTouchDown != null)
{
onTouchDown(btntag);
}
return(true);
}
if (ntouchup == true && bTouch == true)
{
//弹起
bTouch = false;
if (onTouchUp != null)
{
onTouchUp(btntag);
}
return(true);
}
if (ntouch == false && ntouchup == false)
{
if (onTouchLeft != null)
{
onTouchLeft(btntag);
}
}
bTouch = ntouch;
imgTouch.needUpdate = true;
if (imgNormal.Children != null)
{
foreach (var i in imgNormal.Children)
{
i.needUpdate = true;
}
}
imgNormal.needUpdate = true;
if (imgTouch.Children != null)
{
foreach (var i in imgTouch.Children)
{
i.needUpdate = true;
}
}
return(false);
}
public override void updateButton(GameTime gameTime, Microsoft.Xna.Framework.Input.Touch.TouchCollection touches)
{
base.updateButton(gameTime, touches);
}