cocos2dx 3.2之Lua打飞机项目

1          创建lua打飞机项目

cocos new T32Lua -dE:\Installed\cocos2d-x-3.2\cocos2d-x-3.2\projects -l lua

2  项目代码

Common.lua

--用于打印日志信息 function cclog(...)     print(string.format(...)) end   function createBackMenu(node, callback)     -- 获得窗体的大小     local winSize = cc.Director:getInstance():getWinSize()       -- 创建菜单     local menu = cc.Menu:create()     -- node中增加菜单     node:addChild(menu)       --local function startGame()     --  cc.Director:getInstance():replaceScene(SceneMenu())     --end       -- 加菜单项     local menuItem = cc.MenuItemImage:create("btn_back_normal.png", "btn_back_press.png")     -- 菜单中加入菜单项     menu:addChild(menuItem)     -- 注冊处理函数     menuItem:registerScriptTapHandler(callback) -- 注冊处理函数       -- menu的锚点默认是在屏幕正中间的，将它设置在屏幕右下角     menuItem:setAnchorPoint(cc.p(1, 0))     -- 又一次设置菜单项的位置     menuItem:setPosition(winSize.width/2, -winSize.height/2);     -- 设置缩放。在2.3中x方向和y方向上的缩放比例必须同样。可是在3.2中没有限制     menuItem:setScale(2) end   -- 设置触摸事件 function regTouch(node, onTouchBegan, onTouchEnded, onTouchMoved)     local evListen = cc.EventListenerTouchOneByOne:create()     evListen:registerScriptHandler(onTouchBegan, cc.Handler.EVENT_TOUCH_BEGAN)       -- 假设onTouchEnded不为空     if onTouchEnded ~= nil then         evListen:registerScriptHandler(onTouchEnded, cc.Handler.EVENT_TOUCH_ENDED)     end       -- 假设onTouchMoved不为空     if onTouchMoved ~= nil then         evListen:registerScriptHandler(onTouchMoved, cc.Handler.EVENT_TOUCH_MOVED)     end       -- 假设     local evDisp = node:getEventDispatcher()     evDisp:addEventListenerWithSceneGraphPriority(evListen, node) end

LayerScrollBackground.lua   滚动的背景

require "Common"   function LayerScrollBackground()     local layer = cc.Layer:create()     -- 获得屏幕的大小     local winSize = cc.Director:getInstance():getWinSize()       -- 加背景     local bg = cc.Sprite:create("background.png")     -- 层中加入作为背景的精灵     layer:addChild(bg)     -- 设置精灵的锚点     bg:setAnchorPoint(0, 0)       -- 须要两个动作，一个动作向下移动，一个动作设置位置     local action1 = cc.MoveBy:create(10, {x=0, y=-winSize.height})     local action2 = cc.Place:create({x=0, y=0})     local action = cc.Sequence:create(action1, action2)     -- 运行动作     bg:runAction(cc.RepeatForever:create(action))       return layer end

SceneMenu.lua 菜单

require "Common" require "LayerScrollBackground" require "SceneGame"   function SceneMenu()     local scene = cc.Scene:create()       local winSize = cc.Director:getInstance():getWinSize()       -- 滚动的背景     local bgLayer = LayerScrollBackground()     scene:addChild(bgLayer)       -- ScrollView     cc.SpriteFrameCache:getInstance():addSpriteFrames("chooselevel.plist")       local node = cc.Node:create()     for i = 1, 5 do         local spriteName = "ChooseLevel" .. i ..  ".png"         local spriteFrame = cc.SpriteFrameCache:getInstance():getSpriteFrame(spriteName)         local sprite = cc.Sprite:createWithSpriteFrame(spriteFrame)         node:addChild(sprite)         sprite:setPosition(winSize.width/2 + winSize.width*(i-1), winSize.height/2)         sprite:setTag(1000+i)     end       local scrollView = cc.ScrollView:create(winSize, node)     scene:addChild(scrollView)       scrollView:setContentSize(winSize.width*5, winSize.height)     scrollView:setDirection(0)       -- 添加Touch处理     local function onTouchBegan(touch, event)         return true     end     local function onTouchEnded(touch, event)         local sLoc = touch:getStartLocation()         local dLoc = touch:getLocation()         local d = {x=sLoc.x - dLoc.x, y=sLoc.y-dLoc.y}         local pt = node:convertToNodeSpace(sLoc)           if d.x*d.x+d.y*d.y < 25 then             for i=1, 5 do                 local sprite = node:getChildByTag(1000+i)                 local rc = sprite:getBoundingBox()                 if cc.rectContainsPoint(rc, pt) then                      cc.Director:getInstance():replaceScene(SceneGame(i))                      cclog("start new game " .. i)                 end             end         end     end       regTouch(scene, onTouchBegan, onTouchEnded)       local function Back()         cc.Director:getInstance():replaceScene(SceneStart())     end     createBackMenu(scene, Back)         return scene end

SceneStart.lua

require "SceneMenu" require "Common"   function SceneStart()     local scene = cc.Scene:create()       local winSize = cc.Director:getInstance():getWinSize()       cclog(winSize.width .. winSize.height)       -- 加背景图片     local bg = cc.Sprite:create("background.png")     scene:addChild(bg)     bg:setPosition(winSize.width/2, winSize.height/2)       -- 加菜单button     local menu = cc.Menu:create()     scene:addChild(menu)       local function startGame()         cc.Director:getInstance():replaceScene(SceneMenu())     end       -- 加菜单项     local menuItemStart = cc.MenuItemImage:create("btn1_normal.png", "btn1_push.png")     menu:addChild(menuItemStart)     menuItemStart:registerScriptTapHandler(startGame) -- 注冊处理函数       return scene end

SceneGame.lua

require "Common" require "LayerScrollBackground"   function SceneGame(idx)     --创建     local scene = cc.Scene:create()     local winSize = cc.Director:getInstance():getWinSize()       -- 滚动的背景     local bgLayer = LayerScrollBackground()     -- 场景中加上层     scene:addChild(bgLayer)       -- 数据结构，子弹的数组和敌机的数组     local bullets = {}     -- 加入敌机     local enemys = {}       -- 创建英雄战机     local plane = cc.Sprite:create("Player" .. idx .. ".png")     -- 场景中加入飞机     scene:addChild(plane)     -- 设置飞机的位置     plane:setPosition(winSize.width/2, plane:getBoundingBox().height)     -- 设置plane的ZOrder     plane:setLocalZOrder(100)       ----- 载入战斗机的属性     local vm =  cc.FileUtils:getInstance():getValueMapFromFile("planeinfo.xml");     plane.damage = tonumber(vm["planedamageamount" .. idx])     plane.hp = tonumber(vm["plane" .. idx .. "_hp"])     plane.cd = tonumber(vm["planeshootspeedrate" .. idx])     plane.curCD = 0;       cclog(plane.damage .. " " .. plane.hp .. " " .. plane.cd)       -- 显示分数和血的Label     local labelScore = nil     local labelHP = nil     local function createLabels()         -- 设置label         labelHP = cc.Label:createWithSystemFont("" .. plane.hp, "Arial", 50)         -- 设置Label的锚点         labelHP:setAnchorPoint(cc.p(1, 1))         -- 设置锚点的位置         labelHP:setPosition(winSize.width, winSize.height)         scene:addChild(labelHP)         labelHP:setLocalZOrder(1010)           labelScore = cc.Label:createWithSystemFont("0", "Arial", 50)         labelScore:setAnchorPoint(cc.p(0, 1))         labelScore:setPosition(0, winSize.height)         scene:addChild(labelScore)         labelScore:setLocalZOrder(1010)     end     createLabels()       -- 移动飞机       -- 添加Touch处理     local function onTouchBegan(touch, event)         return true     end     local function onTouchMoved(touch, event)         local x, y = plane:getPosition()         local d = touch:getDelta()         plane:setPosition(x+d.x, y+d.y)     end     local function onTouchEnded(touch, event)     end       regTouch(scene, onTouchBegan, onTouchEnded, onTouchMoved)       ------------------- shoot     -- angle參数代表的发射角度，delta表示子弹发射的起始位置和英雄战机的位置的偏移     local function shootOne(angle, delta)         cc.SimpleAudioEngine:getInstance():playEffect("m/bullet.wav")           local bullet = cc.Sprite:create("Bullet.png")         scene:addChild(bullet)         local x, y = plane:getPosition()         bullet:setPosition(x+delta.x, y+delta.y)         bullet:setRotation(angle)                 -- math.rad(角度) 把角度转换成弧度         local dx = math.sin( math.rad(angle) ) * winSize.height         local dy = math.cos( math.rad(angle) ) * winSize.height         local moveBy = cc.MoveBy:create(5, cc.p(dx, dy))         bullet:runAction(moveBy)           -- 子弹保存在数组里         table.insert(bullets, bullet)     end       local function Shoot()         local sizePlane = plane:getContentSize()         if idx == 1 then             shootOne(0, cc.p(0, sizePlane.height/2))         elseif idx == 2 then             shootOne(0, cc.p(0, sizePlane.height/2))             shootOne(0, cc.p(-sizePlane.width/4, sizePlane.height/4))             shootOne(0, cc.p(sizePlane.width/4, sizePlane.height/4))         elseif idx == 3 then             shootOne(0, cc.p(0, sizePlane.height/2))             shootOne(-30, cc.p(0, sizePlane.height/2))             shootOne(30, cc.p(0, sizePlane.height/2))         elseif idx == 4 then             shootOne(0, cc.p(0, sizePlane.height/2))             shootOne(180, cc.p(0, -sizePlane.height/2))             shootOne(90, cc.p(sizePlane.width/2, 0))             shootOne(270, cc.p(-sizePlane.width/2, 0))         elseif idx==5 then             shootOne(45, cc.p(0, 0))             shootOne(45+90, cc.p(0, 0))             shootOne(45+180, cc.p(0, 0))             shootOne(45+270, cc.p(0, 0))         end     end       local function tickShoot()                 plane.curCD = plane.curCD + 1         if plane.curCD >= plane.cd then             Shoot()             plane.curCD = 0         end     end       local tickShootID = cc.Director:getInstance():getScheduler():scheduleScriptFunc(tickShoot, 0, false)       -- 检查子弹是否飞出窗体外     local function checkBulletAndEnemy()         -- 得到子弹数量         local n = table.getn(bullets)           for i = n, 1, -1 do             local bullet = bullets[i]               -- 推断bullet是不是出了窗体             local x, y = bullet:getPosition()               if x<0 or y<0 or x>winSize.width or y > winSize.height then                 bullet:removeFromParent()                 table.remove(bullets, i) -- 从bullets数组中，删除下标为i的元素                 cclog("bullet is out of window")             end         end           n = table.getn(enemys)         for i = n, 1, -1 do             local enemy = enemys[i]               -- 推断enemy是不是出了窗体             local x, y = enemy:getPosition()               if y < -enemy:getContentSize().height/2 then                 enemy:removeFromParent()                 table.remove(enemys, i) -- 从enemys数组中。删除下标为i的元素                             end         end             end           local tickCheckBullet = cc.Director:getInstance():getScheduler():scheduleScriptFunc(checkBulletAndEnemy, 0, false)         -- 产生敌机的定时器     local function genEnemy(type)         -- 创建敌机精灵，增加到数组。增加渲染树         -- 添加敌机属性         -- 随机设置位置         local enemy = cc.Sprite:create("Enemy" .. type .. ".png")         table.insert(enemys, enemy)         scene:addChild(enemy)           -- 敌军飞机的额外属性         local hp = {10, 30, 100}         enemy.hp = hp[type]           local score = {1000, 3000, 10000}         enemy.score = score[type]           local speed = {150, 100, 50}         enemy.speed = speed[type]         enemy.type = type           -- 设置初始位置         local sizePlane = enemy:getContentSize()         math.randomseed(os.time())         local x = math.random(sizePlane.width/2, winSize.width-sizePlane.width/2)         local y = winSize.height + sizePlane.height/2         enemy:setPosition(x, y)           -- 设置飞机飞行动作         local distance = winSize.height + sizePlane.height + 5         local moveBy = cc.MoveBy:create(distance*1.0/enemy.speed, cc.p(0, -distance))         enemy:runAction(moveBy)       end       local function genEnemy1()         genEnemy(1)     end     local function genEnemy2()         genEnemy(2)     end     local function genEnemy3()         genEnemy(3)     end       local tickGenEnemy1 = cc.Director:getInstance():getScheduler():scheduleScriptFunc(genEnemy1, 1, false)     local tickGenEnemy2 = cc.Director:getInstance():getScheduler():scheduleScriptFunc(genEnemy2, 3, false)     local tickGenEnemy3 = cc.Director:getInstance():getScheduler():scheduleScriptFunc(genEnemy3, 10, false)       local function loadBoomAnimation()         local spriteFrameCache = cc.SpriteFrameCache:getInstance()         spriteFrameCache:addSpriteFrames("PFBoom.plist")           -- CCArray* arr = CCArray:create()         local spriteFrames = {}         for i = 1, 18 do             local spriteFrame = spriteFrameCache:getSpriteFrame("Boom_" .. i .. ".png")             table.insert(spriteFrames, spriteFrame)         end           local animation = cc.Animation:createWithSpriteFrames(spriteFrames, 0.05)         cc.AnimationCache:getInstance():addAnimation(animation, "ENEMYBOOM")     end     loadBoomAnimation()       local function removeEnemy(node, tab)         node:removeFromParent()     end       local function enemyBoom(idx)         local enemy = enemys[idx]                 cc.SimpleAudioEngine:getInstance():playEffect("m/enemy" .. enemy.type .. "_down.wav")           -- 添加分数         local score = labelScore:getString()         score = tonumber(score) + enemy.score         labelScore:setString("" .. score)           table.remove(enemys, idx)           -- 运行爆炸动画。然后再调用removeFromParent         local animation = cc.AnimationCache:getInstance():getAnimation("ENEMYBOOM")         local animate = cc.Animate:create(animation)         local callfunc = cc.CallFunc:create(removeEnemy)         local seq = cc.Sequence:create(animate, callfunc)         enemy:runAction(seq)           -- enemy:removeFromParent()     end       local function collision()         local nEnemy = table.getn(enemys)         local rcPlane = plane:getBoundingBox()           for i = nEnemy, 1, -1 do             local enemy = enemys[i]             local rcEnemy = enemy:getBoundingBox()             local bEnemyBoom = false               -- 假设敌机和英雄战机碰撞, rcEnemy, rcPlane             if cc.rectIntersectsRect(rcEnemy, rcPlane) then                 plane.hp = plane.hp - enemy.hp                 labelHP:setString("" .. plane.hp)                 if plane.hp <= 0 then                     cc.Director:getInstance():replaceScene(SceneMenu())                     break                 end                   enemyBoom(i)                 bEnemyBoom = true             end               -- 跟子弹进行碰撞检測             if bEnemyBoom == false then                 local nBullet = table.getn(bullets)                 for j = nBullet, 1, -1 do                     local bullet = bullets[j]                       -- 假设子弹和敌机碰撞                     local ptBullet = cc.p( bullet:getPosition() )                     if cc.rectContainsPoint(rcEnemy, ptBullet) then                         bullet:removeFromParent()                         table.remove(bullets, j)                           enemy.hp = enemy.hp - plane.damage;                         if enemy.hp <= 0  then                             enemyBoom(i)                             break  -- 表示这个敌机不再和下一个子弹做碰撞检測                         end                     end                 end             end           end     end     local tickCollisionID = cc.Director:getInstance():getScheduler():scheduleScriptFunc(collision, 0, false)       local function Back()         cc.Director:getInstance():replaceScene(SceneMenu())     end     createBackMenu(scene, Back)       -- 注销定时器     local function onNodeEvent(event)         if "enter" == event then             cclog("OnEnter")             cc.SimpleAudioEngine:getInstance():playMusic("m/game_music.wav", true)         end         if "exit" == event then             cc.SimpleAudioEngine:getInstance():stopMusic()             cc.Director:getInstance():getScheduler():unscheduleScriptEntry(tickShootID)             cc.Director:getInstance():getScheduler():unscheduleScriptEntry(tickCheckBullet)             cc.Director:getInstance():getScheduler():unscheduleScriptEntry(tickGenEnemy1)             cc.Director:getInstance():getScheduler():unscheduleScriptEntry(tickGenEnemy2)             cc.Director:getInstance():getScheduler():unscheduleScriptEntry(tickGenEnemy3)             cc.Director:getInstance():getScheduler():unscheduleScriptEntry(tickCollisionID)         end     end     scene:registerScriptHandler(onNodeEvent)         return scene end

main.lua

--引入lua的方式是通过require require "Cocos2d" require "Cocos2dConstants"   -- cclog 打印日志的方式 cclog = function(...)     print(string.format(...)) end   -- for CCLuaEngine traceback    lua中连接字符串的方式是通过 .. 实现的 function __G__TRACKBACK__(msg)     cclog("----------------------------------------")     cclog("LUA ERROR: " .. tostring(msg) .. "\n")     cclog(debug.traceback())     cclog("----------------------------------------")     return msg end   local function main()     collectgarbage("collect")     -- avoid memory leak     collectgarbage("setpause", 100)     collectgarbage("setstepmul", 5000)       -- initialize director  lua中定义局部变量的是通过local的方式     local director = cc.Director:getInstance()     local glview = director:getOpenGLView()     if nil == glview then         glview = cc.GLView:createWithRect('HelloLua', cc.rect(0,0,768/2,1280/2))         director:setOpenGLView(glview)     end       -- 设置设计分辨率，这个就是图片的实际大小     glview:setDesignResolutionSize(768, 1280, cc.ResolutionPolicy.NO_BORDER)       --turn on display FPS     director:setDisplayStats(true)       --set FPS. the default value is 1.0/60 if you don't call this     director:setAnimationInterval(1.0 / 60)       -- 设置载入的文件包     cc.FileUtils:getInstance():addSearchPath("src")     cc.FileUtils:getInstance():addSearchPath("res")           --support        local targetPlatform = cc.Application:getInstance():getTargetPlatform()     if (cc.PLATFORM_OS_IPHONE == targetPlatform) or (cc.PLATFORM_OS_IPAD == targetPlatform) or        (cc.PLATFORM_OS_ANDROID == targetPlatform) or (cc.PLATFORM_OS_WINDOWS == targetPlatform) or        (cc.PLATFORM_OS_MAC == targetPlatform) then         cclog("result is ")         --require('debugger')()      end     -----------------------------------------------       -- 自己定义的文件的require必须在 addSearchPath之后，2.2.3没有这个问题     require "SceneStart"     cc.Director:getInstance():runWithScene(SceneStart())   end   local status, msg = xpcall(main, __G__TRACKBACK__) if not status then     error(msg) end

执行结果：