Unity UI拖拽模型选择功能
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
usingSystem.Collections;
usingSystem.Collections.Generic;
usingUnityEngine;
publicclassUIModelUtil:MonoBehaviour
{
publicAnimatoranimator;
publicintid;
publicintindex;
}
模型控制
usingSystem.Collections;
usingSystem.Collections.Generic;
usingUnityEngine;
publicclassUIModelControl:MonoBehaviour
{
publicTransformmodelsParent;
publicTransformcenterPos;
publicfloatinterval;
publicboolloop;
Listmodels;
boolisPressing;
publicUIDragdragComp;
Vector3mousePos;
privatevoidAwake()
{
if(models==null)
{
inti=0;
models=newList();
foreach(UIModelUtilutilinmodelsParent.GetComponentsInChildren())
{
models.Add(util);
//util.index=i;
Vector3pos=Vector3.zero;
pos.x=i*interval;
util.transform.localPosition=pos;
i++;
}
}
}
privatevoidStart()
{
JumpToSelect();
}
privatevoidUpdate()
{
//接受拖拽事件
if(isPressing)
{
floatx=GetInputDeltaX();
intdir=0;
if(x>0)dir=1;
elseif(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
floatcurrectX=Mathf.Lerp(0,interval,x/800f)*dir;
Vector3pos=modelsParent.position;
pos.x+=currectX;
Transformright=GetRight().transform;
Transformleft=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);
elseif(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
elseif(models.Count==2&&loop)
{
Transformselected=GetSelect().transform;
//当前是右边那个且向右拖拽
if(selected==right&&dir<0)
{
Vector3leftPos=left.localPosition;
leftPos.x=right.localPosition.x+interval;
left.localPosition=leftPos;
}
//当前是左边那个且向左拖拽
elseif(selected==left&&dir>0)
{
Vector3rightPos=right.localPosition;
rightPos.x=left.localPosition.x-interval;
right.localPosition=rightPos;
}
}
modelsParent.position=pos;
AfterSelect();
}
}
voidAfterSelect()
{
foreach(UIModelUtilutilinmodels)
{
floatdis=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);
floatt=Mathf.Abs(dis)/interval;
floaty=Mathf.Lerp(centerPos.position.z,modelsParent.position.z,t);
Vector3pos=util.transform.position;
pos.z=y;
util.transform.position=pos;
}
}
//循环时候位置修正
if(loop&&models.Count>2)
{
Transformright=GetRight().transform;
Transformleft=GetLeft().transform;
Transformselected=GetSelect().transform;
if(selected==right)
{
Vector3pos=right.position;
pos.x+=interval;
left.position=pos;
}
elseif(selected==left)
{
Vector3pos=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
UIModelUtilGetById(intid)
{
if(models==null)returnnull;
UIModelUtiltarget=null;
foreach(UIModelUtilutilinmodels)
{
if(util.id==id)returnutil;
}
returntarget;
}
//获取当前选中
UIModelUtilGetSelect()
{
if(models==null)returnnull;
floatmin=9999;
UIModelUtiltarget=null;
foreach(UIModelUtilutilinmodels)
{
floatdis=Mathf.Abs(GetXDis(util));
if(dismax)
{
target=util;
max=dis;
}
}
returntarget;
}
//所有模型最左边的那个
UIModelUtilGetLeft()
{
if(models==null)returnnull;
floatmin=9999;
UIModelUtiltarget=null;
foreach(UIModelUtilutilinmodels)
{
floatdis=util.transform.localPosition.x;
if(dis
UI接受点击事件：
usingSystem.Collections;
usingSystem.Collections.Generic;
usingUnityEngine;
usingUnityEngine.EventSystems;
publicclassUIDrag:MonoBehaviour,IPointerDownHandler,IPointerUpHandler
{
publicUIModelControlcontrol;
virtualpublicvoidOnPointerDown(PointerEventDatadata)
{
control.OnPress();
}
virtualpublicvoidOnPointerUp(PointerEventDatadata)
{
control.OnRelease();
}
virtualpublicvoidOnSelected(intid,intindex)
{
}
}
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