如何添加一个按钮返回主菜单（另一个 .lua 文件）？

Question

这个游戏有点像杀蚊子。这是 1 级文件。当玩家点击蜜蜂时，将显示游戏结束。时间到了，会显示游戏结束。最后会显示被杀死的蚊子总数。我对电晕和游戏开发非常陌生。 我的问题是：

1. 在哪里设置通过“触摸”返回主菜单的功能？它的代码是什么？
2. 我正在使用作曲家。所以我尝试了 composer.gotoScene("menu") 但这似乎不起作用。错误。

提前感谢您提供的任何帮助。以下是部分代码：

local composer = require( "composer" )
local scene = composer.newScene()
local physics = require("physics")
local widget = require "widget"
physics.start()
rand = math.random( 20 )

local slap_sound = audio.loadSound("Sound/slap2.mp3")
local ow = audio.loadSound("Sound/ow.mp3")
local buttonSound = audio.loadSound("Sound/sound2.mp3")
local back

--local mossie_sound = audio.loadSound("Sound/mossie.mp3")
local count={total1=0,total=0,touch=0,life=3}

local background = display.newImageRect( "Images/bg.jpg", display.contentWidth, display.contentHeight )
    background.anchorX = 0
    background.anchorY = 0
    background.x, background.y = 0, 0

local total=display.newText("Score : 0",display.contentWidth * 0.5, 20, "Arial", 26)
      total:setTextColor(000000)

local time_remain = 30
local mossie
local bee
local shade
local gameOverScreen
local winScreen
local gameIsActive = false

local countdown=display.newText(time_remain ,display.contentWidth * 0.9, 20, "Arial", 26)
countdown:setTextColor(000000)

local life = display.newText("Life : 3 " ,display.contentWidth * 0.5, 50, "Arial", 26)
life:setTextColor(000000)

local pauseBtn = display.newImage("Images/pause.png")
     pauseBtn.x = display.contentWidth * 0.1
     pauseBtn.y = display.contentHeight - 450

local resumeBtn = display.newImage("Images/playb.png") 
    resumeBtn.x = display.contentWidth * 0.1
    resumeBtn.y = display.contentHeight - 450


     local gameOver = function()
     composer.removeScene("level1")  //scene cannot be removed???
     gameIsActive = false
     physics.pause()
     gameOverScreen = display.newImage("Images/gameover.png",400,300)
     gameOverScreen.x = 160
     gameOverScreen.y = 240
     gameOverScreen.alpha = 0
     transition.to(gameOverScreen,{time=500,alpha=1})
     total.isVisible = true
    total.text="Score : "..count.touch
    total.x = 160
    total.y = 400
        botwall.isVisible = false
        mossie.isVisible = false
        bee.isVisible = false
        life.isVisible = false
        countdown.isVisible = false
        pauseBtn.isVisible = false
        resumeBtn.isVisible = false

     end



    local collisionListener=function(self,event)
        if(event.phase=="began")then
            if(event.other.type=="mossie")then
                audio.play(ow)
                count.life=count.life-1
                    if(count.life==0) then
                        gameOver()
                    end 
                event.other:removeSelf()
                event.other=nil
            else
                event.other:removeSelf()
                event.other=nil
            end

        end

    end


    local function countDown(e)
        time_remain = time_remain-1
        countdown.text = time_remain
    end

    local checkTimer = function()
        if(time_remain == 0) then
        gameOver()
        end
    end

    function killIt(e)
        if(e.phase == "ended") then
            gameOver()
        end
    end

    --spawn Bee
    local function newBee(event)

        bee = display.newImage("Images/lebah.png")
        bee.x = 60 + math.random( 160 )
        bee.y = -100
        bee.type="other"
        physics.addBody( bee, { density=1.4, friction=0.3, bounce=0.2} )
        checkTimer()

        bee:addEventListener("touch",killIt)

    end

    ---whenMossieIsTouched
    function onTouch(mossie)
        audio.play(slap_sound)
        count.touch=count.touch+1
        total.text="Score : "..count.touch
        mossie.target:removeSelf()
        --print("total"..mossietouchcount)
    end

    ---spawn Mossie
    local function newMossie(event)    
        --audio.play(mossie_sound)
        total.text="Score : "..count.touch
        life.text="Life : "..count.life
        mossie = display.newImage("Images/biasa.png") 
        mossie.x = 60 + math.random( 160 )
        mossie.y = -100
        mossie.type="mossie"
        mossie:setFillColor(255,0,0)
        physics.addBody( mossie, { density=0.3, friction=0.2, bounce=0.5} )
        mossie.name = "mossie"
        --checkTimer()
        mossie:addEventListener("touch",onTouch)

    end 

    local bottomWall = function()
        --botwall=display.newRect(0,display.contentHeight,display.contentWidth*2,10)
        botwall=display.newImage("Images/tangan.png")
        botwall.x = 160
        botwall.y = 500
        botwall:setFillColor(22,125,185,255)
        botwall.type="botwall"
        botwall.collision=collisionListener
        physics.addBody(botwall,"static",{ density=100.0, friction=0.0, bounce=0.0} )
        botwall:addEventListener("collision",botwall)
    end

    local gameActivate = function()
        gameIsActive = true
    end



    local gameStart = function()
    local gametmr = timer.performWithDelay(1000, countDown, 0)
    local dropMossie = timer.performWithDelay( 1000 , newMossie, -1 )
    local dropBee = timer.performWithDelay( 1800 , newBee, -1)

    local pauseGame = function(e)
        if(e.phase=="ended") then
            audio.play(buttonSound)
            physics.pause()
            timer.pause(gametmr)
            pauseBtn.isVisible = false
            resumeBtn.isVisible = true
            return true
        end
    end

    local resumeGame = function(e)
        if(e.phase=="ended") then
            audio.play(buttonSound)
            physics.start()
            timer.resume(gametmr)
            pauseBtn.isVisible = true
            resumeBtn.isVisible = false
            return true
        end
    end

    pauseBtn:addEventListener("touch", pauseGame)
    resumeBtn:addEventListener("touch", resumeGame)
    resumeBtn.isVisible = false
    bottomWall()
    gameActivate()


    end

    gameStart()
    return scene

Answer 1

当您尝试使用composer.gotoScene("menu")时，请确保场景名为“menu.lua”

首先确保您需要顶部的库

local composer = require( "composer" )
local widget = require( "widget" )

然后添加一个监听器来处理按钮事件

local function handleButtonEvent( event )
    if ( "ended" == event.phase ) then
        composer.gotoScene ("menu")
    end
end

然后创建按钮

local myButton = widget.newButton
{
    left = 100,
    top = 200,
    id = "myButton",
    label = "Default",
    onEvent = handleButtonEvent
}

编辑： 查看您的代码，我可以看到您实际上并没有使用作曲家。当然，您可能会包含这些库，但您没有设置它工作所需的任何功能。

我建议你阅读这篇文章：Introducing the Composer API。这将指导您使用作曲家。

至少你应该有以下功能供作曲家工作。

• 场景：创建（）
• 场景：表演（）
• 场景：隐藏（）
• 场景：删除（）

其中使用local sceneGroup = self.view 使用场景视图。一旦对象被正确插入其中，您就可以“管理”您的场景和其中的显示对象。