---
--- Created by 谌建军.
--- DateTime: 2017/12/18 15:19
---
local FlyCoin = {}

local M = FlyCoin

function FlyCoin.new(startPos,endPos,view,coinPre)
    local self = setmetatable({}, {__index = M})
    self.class = "FlyCoin"
    --self.flyObj = UIPackage.CreateObjectFromURL("ui://Extend_Poker_MuShi/coin")
	self.flyObj= UnityEngine.GameObject.Instantiate(coinPre)
    --view:AddChild(self.flyObj)  
	self.flyObj.gameObject.transform.parent = view.displayObject.gameObject.transform
	self.flyObj.gameObject.transform.position = startPos--Vector3(50,-50,0)
	self.flyObj.gameObject.transform.localScale = Vector3(50,50,50)
    self.isFly = false
    self.g = -5
    self.hideTime = 1
    self.flySpeed = Vector3.New(5,5,0)
    self.currentTime = 0
    self.gravity = Vector3.New(0,0,0)
    self.SpeedRatio=3
    self:SetParabola(startPos,endPos)
    UpdateBeat:Add(self.OnFlyCoinUpdate,self)
    return self
end

function M:SetParabola(startPos,endPos)
	self.startPos=startPos
	self.endPos=endPos
	self.distance=Vector3.Distance(endPos,startPos)
	self.totalTime=self.distance/self.SpeedRatio
	if self.totalTime>0.6 then
		self.totalTime=0.6
	end
	self.flySpeed=Vector3((self.endPos.x-self.startPos.x)/self.totalTime,(self.endPos.y-self.startPos.y)/self.totalTime-0.5*self.g*self.totalTime,(self.endPos.z-self.startPos.z)/self.totalTime )
	self.currentTime=0
	self.flyObj.gameObject.transform.position=startPos
	self.isFly=true
end

function M:OnFlyCoinUpdate()
    if self.isFly then
		self.currentTime=self.currentTime+Time.deltaTime
		self.gravity.y=self.currentTime*self.g
    
		if self.currentTime>self.totalTime and self.currentTime<self.hideTime then
			self.flyObj.gameObject.transform.position=self.endPos
			self.isFly=false
			self.currentTime=0
			coroutine.start(function ()
				coroutine.wait(0.3)
				self:OnDestroy()
			end)
			
		elseif self.currentTime>self.hideTime then
			self.isFly=false
			self.currentTime=0
			self:OnDestroy()
		else
            self.flyObj.gameObject.transform.position =self.flyObj.gameObject.transform.position + (self.flySpeed+self.gravity)*Time.deltaTime
		end
	end
end

function M:OnDestroy()
    if self.flyObj~=nil then
        UnityEngine.GameObject.Destroy(self.flyObj.gameObject)
    end
    UpdateBeat:Remove(self.OnFlyCoinUpdate,self)
end

return M