quick cocos2d-x 实现划线轨迹，精灵匀速跟随移动的效果

local MainScene = class("MainScene", function()
    return display.newScene("MainScene")
end)
local CURRENT_MODULE_NAME = ...
local Queue = import("./Queue", CURRENT_MODULE_NAME)
function MainScene:ctor()

    local draw_node = CCDrawNode:create()
    self:addChild(draw_node)

    local sp = display.newSprite("res/res.png", 0, 0)
    self:addChild(sp)
    self.myQueue = Queue.new(100)

    self.layer = display.newLayer()
    self.layer:setTouchEnabled(true)
    self.layer:setTouchMode(cc.TOUCH_MODE_ONE_BY_ONE)
    self.layer:addNodeEventListener(cc.NODE_TOUCH_EVENT, function(event)
        if event.name == "began" then
            sp:setPosition(event.x,event.y)
            return true
        elseif event.name == "moved" then
            draw_node:drawDot(ccp(event.x, event.y), 3, ccc4f(220, 10, 10, 222))
            local point = ccp(event.x, event.y)

            self.myQueue:enQueue(point)
            print("ENQUEUE: "..point.x.." ,  "..point.y)
        elseif event.name == "ended" then
        end
    end)
    self:addChild(self.layer)

    CCDirector:sharedDirector():getScheduler():scheduleScriptFunc(function(dt)
        if self.point == nil and self.myQueue:isEmpty() == false then
            self.point = self.myQueue:deQueue()
            print("DEQUEUE"..self.point.x.." ,  "..self.point.y)
        end    

        if self.point ~= nil then
            if math.floor(self.point.x) - math.floor(sp:getPositionX()) < 0 then
                self.x= -1
            elseif math.floor(self.point.x) - math.floor(sp:getPositionX()) > 0  then
                self.x= 1
            else
                self.x = 0
            end

            if math.floor(self.point.y) - math.floor(sp:getPositionY()) < 0 then
                self.y=-1
            elseif math.floor(self.point.y) - math.floor(sp:getPositionY()) > 0  then
                self.y= 1
            else
                self.y= 0
            end

            local spX = sp:getPositionX() + self.x
            local spY = sp:getPositionY() + self.y

            sp:setPosition(ccp(spX, spY))

            if math.floor(spX) == math.floor(self.point.x) and math.floor(spY) == math.floor(self.point.y) then
                self.point = nil
            end
        end
    end, 0.01, false)
end

function MainScene:onEnter()
end

function MainScene:onExit()
end

return MainScene

代码还有一个队列，直接拿我以前写的一个Queue。地址在：http://www.cnblogs.com/vokie/p/4110003.html

效果就是画出轨迹线路，精灵可以沿着轨迹线路匀速运动起来。代码基于quick 2.2.5

效果图片