我要评论指定一块区域，玩家鼠标or手指拖拽这个区域，模型会进行偏移，并用于进行人物、道具的选择
给模型定义一些属性
using system.collections;
using system.collections.generic;
using unityengine;
public class uimodelutil : monobehaviour
{
public animator animator;
public int id;
public int index;
}
模型控制
using system.collections;
using system.collections.generic;
using unityengine;
public class uimodelcontrol : monobehaviour
{
public transform modelsparent;
public transform centerpos;
public float interval;
public bool loop;
list<uimodelutil> models;
bool ispressing;
public uidrag dragcomp;
vector3 mousepos;
private void awake()
{
if(models == null)
{
int i = 0;
models = new list<uimodelutil>();
foreach(uimodelutil util in modelsparent.getcomponentsinchildren<uimodelutil>())
{
models.add(util);
//util.index = i;
vector3 pos = vector3.zero;
pos.x = i * interval;
util.transform.localposition = pos;
i++;
}
}
}
private void start()
{
jumptoselect();
}
private void update()
{
//接受拖拽事件
if (ispressing)
{
float x = getinputdeltax();
int dir = 0;
if (x > 0) dir = 1;
else if (x < 0) dir = -1;
//分辨率修正
if (dir == 0) return;
x = mathf.abs(x) / (screen.width) * 800f;
if (x > 800f) x = 800f;
//偏移
float currectx = mathf.lerp(0, interval, x / 800f) * dir;
vector3 pos = modelsparent.position;
pos.x += currectx;
transform right = getright().transform;
transform left = getleft().transform;
//不循环时候设置边框
if (models.count > 2 || !loop || models.count == 1)
{
if (right.localposition.x + interval / 10 < -pos.x) pos.x = -(right.localposition.x + interval / 10);
else if (left.localposition.x - interval / 10 > -pos.x) pos.x = -(left.localposition.x - interval / 10);
//modelsparent.position = pos;
}
//只有两个循环的时候
else if (models.count == 2 && loop)
{
transform selected = getselect().transform;
//当前是右边那个且向右拖拽
if (selected == right && dir < 0)
{
vector3 leftpos = left.localposition;
leftpos.x = right.localposition.x + interval;
left.localposition = leftpos;
}
//当前是左边那个且向左拖拽
else if (selected == left && dir > 0)
{
vector3 rightpos = right.localposition;
rightpos.x = left.localposition.x - interval;
right.localposition = rightpos;
}
}
modelsparent.position = pos;
afterselect();
}
}
void afterselect()
{
foreach(uimodelutil util in models)
{
float dis = getxdis(util);
//设置显示
if (dis > interval)
util.gameobject.setactive(false);
else
{
//越靠近中间越前
util.gameobject.setactive(true);
float t = mathf.abs(dis) / interval;
float y = mathf.lerp(centerpos.position.z, modelsparent.position.z, t);
vector3 pos = util.transform.position;
pos.z = y;
util.transform.position = pos;
}
}
//循环时候位置修正
if (loop && models.count > 2)
{
transform right = getright().transform;
transform left = getleft().transform;
transform selected = getselect().transform;
if (selected == right)
{
vector3 pos = right.position;
pos.x += interval;
left.position = pos;
}
else if (selected == left)
{
vector3 pos = left.position;
pos.x -= interval;
right.position = pos;
}
}
//设置ui选中状况
dragcomp.onselected(getselect().id, getselect().index);
}
//通过id选中
uimodelutil getbyid(int id)
{
if (models == null) return null;
uimodelutil target = null;
foreach (uimodelutil util in models)
{
if (util.id == id) return util;
}
return target;
}
//获取当前选中
uimodelutil getselect()
{
if (models == null) return null;
float min = 9999;
uimodelutil target = null;
foreach(uimodelutil util in models)
{
float dis = mathf.abs( getxdis(util));
if(dis < min)
{
target = util;
min = dis;
}
}
return target;
}
//所有模型最右边的那个
uimodelutil getright()
{
if (models == null) return null;
float max = -9999;
uimodelutil target = null;
foreach(uimodelutil util in models)
{
float dis = util.transform.localposition.x;
if(dis > max)
{
target = util;
max = dis;
}
}
return target;
}
//所有模型最左边的那个
uimodelutil getleft()
{
if (models == null) return null;
float min = 9999;
uimodelutil target = null;
foreach(uimodelutil util in models)
{
float dis = util.transform.localposition.x;
if(dis < min)
{
target = util;
min = dis;
}
}
return target;
}
//ui控件按下触发
public void onpress()
{
if (ispressing) return;
ispressing = true;
if (application.iseditor)
mousepos = input.mouseposition;
else
mousepos = input.gettouch(0).position;
if (backing != null) stopcoroutine(backing);
}
//ui控件释放触发
public void onrelease()
{
backing = startcoroutine(toselect());
ispressing = false;
}
coroutine backing;
//释放后偏移
ienumerator toselect()
{
uimodelutil selected = getselect();
float dis = getxdis(selected);
float time = mathf.lerp (0, 1f, mathf.abs(dis) / interval);
float timer = 0;
vector3 from = modelsparent.localposition;
vector3 to = from;
to.x = -selected.transform.localposition.x;
while(timer < time)
{
timer += time.deltatime;
float t = timer / time;
vector3 pos = vector3.lerp(from, to, t);
modelsparent.localposition = pos;
afterselect();
yield return null;
}
backing = null;
}
//获取手指偏移量
float getinputdeltax()
{
vector3 pos;
if (application.iseditor)
pos = input.mouseposition;
else
pos = input.gettouch(0).position;
vector3 delta = pos - mousepos;
//debug.log(pos +"/"+mousepos +"/"+ delta.x);
mousepos = pos;
return delta.x;
}
//计算偏移中心位置的x轴距离
float getxdis(uimodelutil util)
{
return util.transform.position.x - centerpos.position.x;
}
// 跳转到选中的id
public void jumptoselect()
{
int id = charactermanager.characterid;
vector3 pos = modelsparent.localposition;
uimodelutil selected = getbyid(id);
pos.x = -selected.transform.localposition.x;
modelsparent.localposition = pos;
afterselect();
}
}
ui接受点击事件：
using system.collections;
using system.collections.generic;
using unityengine;
using unityengine.eventsystems;
public class uidrag : monobehaviour,ipointerdownhandler, ipointeruphandler
{
public uimodelcontrol control;
virtual public void onpointerdown(pointereventdata data)
{
control.onpress();
}
virtual public void onpointerup(pointereventdata data)
{
control.onrelease();
}
virtual public void onselected(int id, int index)
{
}
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持移动技术网。
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