Input 检测拖放和检测长压（XNA或as3）
我试图实现一个对象的拖放行为，我需要在触摸被按下时进行注册，移动一点后，它应该开始拖动 不幸的是，我使用的是一个用C#实现的定制框架，它类似于XNA 在XNA上你会怎么做Input 检测拖放和检测长压（XNA或as3）,input,xna,touch,mouse,drag,Input,Xna,Touch,Mouse,Drag,我试图实现一个对象的拖放行为，我需要在触摸被按下时进行注册，移动一点后，它应该开始拖动 不幸的是，我使用的是一个用C#实现的定制框架，它类似于XNA 在XNA上你会怎么做 （适用于android平板电脑）。显然，这个例子应该进行重构，以使用输入服务和更好地处理触动/触动概念，但答案的核心仍然是一样的： // I don't remember the exact property names, but you probably understand what I mean public overr
（适用于android平板电脑）。显然，这个例子应该进行重构，以使用输入服务和更好地处理触动/触动概念，但答案的核心仍然是一样的：
// I don't remember the exact property names, but you probably understand what I mean
public override void Update(GameTime time)
{
var currentState = TouchPanel.GetState();
var gestures = currentState.TouchGestures;
var oldGests = this.oldState.TouchGestures;
if (oldGests.Count == 0 && gestures.Count == 1 && gestures[0].State == Pressed)
{
// Went from Released to Pressed
this.touchPressed = true;
}
else
{
// Not the frame it went to Pressed
this.touchPressed = false;
}
if (oldGests.Count == 1 && gestures.Count == 1 && oldGests[0].State == Pressed && gestures[0].State == Pressed)
{
// Touch is down, and has for more than 1 frame (aka. the user is dragging)
this.touchDown = true;
}
else
{
this.touchDown = false;
}
if (oldGests.Count == 1 && oldGests[0].State == Pressed && gestures.Count == 0)
{
// Went from Released to Pressed
this.touchReleased = true;
}
else
{
// Not the frame it went to Pressed
this.touchReleased = false;
}
this.oldState = currentState;
}