Cocos2d-x 3.1.1 Lua示例 ActionEaseTest（动作）

Cocos2d-x Lua示例 ActionEaseTest（动作）

  本篇博客介绍Cocos2d-x中的动作，Cocos2d-x为我们提供了丰富的动作接口，下面笔者就详细介绍一下：   本系列博客介绍的是lua的实现，想看C++实现请移步到Cocos2d-x为我们提供的例子：        Action类继承关系图，各位可以到http://cn.cocos2d-x.org/doc/cocos2d-x-3.0/db/d61/classcocos2d_1_1_action.html进行参考：      本篇博客的例子并没有涉及所有的动作，其他动作，以后的例子可能会涉及到，到时再进行说明。   我们先看一下效果，笔者只做了第一个动作的gif图，剩下的，读者可以自己运行lua-tests进行查看


本例子动作总结： MoveBy/MoveTo: 创建一个移动的动作 EaseIn/EaseOut: 动作由慢变快/动作由快变慢 EaseInOut：动作由慢变快再由快变慢 EaseExponentialIn：动作由慢变极快 EaseExponentialOut：动作由极快变慢 EaseExponentialInOut：动作由慢至极快再由极快边慢 EaseSineIn：动作由快变慢 EaseSineOut：动作由慢变快 EaseSineInOut：精灵由慢至快再由快至慢 EaseElasticIn：让目标动作赋予弹性 ，且以目标动作起点位子赋予弹性
EaseElasticOut：让目标动作赋予弹性 ，且以目标动作终点位子赋予弹性
EaseElasticInOut：让目标动作赋予弹性 ，且以目标动作起点和终点位子赋予弹性
EaseBounceIn：让目标动作缓慢开始
EaseBounceOut：让目标动作赋予反弹力，且以目标动作结束位子开始反弹 EaseBounceInOut：让目标动作赋予反弹力，且以目标动作起始与结束位子开始反弹
EaseBackIn：让目标动作赋予回力 ， 且以目标动作起点位置作为回力点
EaseBackOut：让目标动作赋予回力 ， 且以目标动作终点位置作为回力点
EaseBackInOut：让目标动作赋予回力 ， 且以目标动作起点和终点位置作为回力点 JumpBy/JumpTo：跳的动作 RotateBy/RotateTo：旋转的动作
Spawn：让多个动作同时执行
Speed：让目标运行速度加倍

实现代码如下：

local kTagAction1 = 1local kTagAction2 = 2
local kTagSlider = 1
-- 获取屏幕大小
local s = cc.Director:getInstance():getWinSize()
-- 获取与Directorg关联的调度器
local scheduler = cc.Director:getInstance():getScheduler()

-- 创建简单的移动，持续3秒
local function createSimpleMoveBy()
  return cc.MoveBy:create(3, cc.p(s.width - 130, 0))
end

-- 创建简单的延迟，0.25秒
local function createSimpleDelayTime()
  return cc.DelayTime:create(0.25)
end

-- 设置两个精灵的位置
local function positionForTwo()
  grossini:setPosition(cc.p(60, s.height * 1 / 5))
  tamara:setPosition(cc.p(60, s.height * 4 / 5))
  kathia:setVisible(false)
end

-- 获取基础层
local function getBaseLayer()
  local layer = cc.Layer:create()

  -- 三个丑陋的精灵
  grossini = cc.Sprite:create(s_pPathGrossini)
  tamara = cc.Sprite:create(s_pPathSister1)
  kathia = cc.Sprite:create(s_pPathSister2)

  -- 添加三个精灵到层当中
  layer:addChild(grossini, 3)
  layer:addChild(kathia, 2)
  layer:addChild(tamara, 1)

  -- 设置三个精灵的位置
  grossini:setPosition(cc.p(60, s.height * 1 / 5))
  kathia:setPosition(cc.p(60, s.height * 2.5 / 5))
  tamara:setPosition(cc.p(60, s.height * 4 / 5))

  -- 初始化层
  Helper.initWithLayer(layer)

  return layer
end

-----------------------------------
--  SpriteEase
-----------------------------------
local SpriteEase_entry = nil

-- 测试停止动作
local function testStopAction(dt)
  -- 取消调度脚本
  scheduler:unscheduleScriptEntry(SpriteEase_entry)
  tamara:stopActionByTag(1)
  kathia:stopActionByTag(1)
  grossini:stopActionByTag(1)
end

-- 进入或退出
local function SpriteEase_onEnterOrExit(tag)
  -- 如果是进入
  if tag == "enter" then
    -- 执行脚本方法
    SpriteEase_entry = scheduler:scheduleScriptFunc(testStopAction, 6.25, false)
  elseif tag == "exit" then
    -- 注销循环
    scheduler:unscheduleScriptEntry(SpriteEase_entry)
  end
end
--
local function SpriteEase()

  local layer = getBaseLayer()

  local move = createSimpleMoveBy()
  local move_back = move:reverse() -- 原地返回

  -- 动作由慢变快
  local move_ease_in = cc.EaseIn:create(createSimpleMoveBy(), 2.5)
  -- 原路返回
  local move_ease_in_back = move_ease_in:reverse()

  -- 动作有块变慢
  local move_ease_out = cc.EaseOut:create(createSimpleMoveBy(), 2.5)
  -- 原路返回
  local move_ease_out_back = move_ease_out:reverse()

  -- 延时
  local delay = createSimpleDelayTime()
  -- 动作序列1
  local seq1 = cc.Sequence:create(move, delay, move_back, createSimpleDelayTime())
  -- 动作序列2
  local seq2 = cc.Sequence:create(move_ease_in,createSimpleDelayTime(),move_ease_in_back,createSimpleDelayTime())
  -- 动作序列3
  local seq3 = cc.Sequence:create(move_ease_out,createSimpleDelayTime(),move_ease_out_back,createSimpleDelayTime())

  -- 执行一个无线循环的动作
  local a2 = grossini:runAction(cc.RepeatForever:create(seq1))
  a2:setTag(1)--改变这个用来更容易分辨节点的标记。
  local a1 = tamara:runAction(cc.RepeatForever:create(seq2))
  a1:setTag(1)
  local a = kathia:runAction(cc.RepeatForever:create(seq3))
  a:setTag(1)

  -- 注册监听脚本
  layer:registerScriptHandler(SpriteEase_onEnterOrExit)

  Helper.titleLabel:setString("EaseIn - EaseOut - Stop")
  return layer
end

-----------------------------------
--SpriteEaseInOut 精灵由慢至快再由快至慢
-----------------------------------
local function SpriteEaseInOut()
  -- 获取基础层
  local layer = getBaseLayer()
  -- 创建移动动作
  local move = createSimpleMoveBy()

  -- 创建由慢变快再由快变慢的动作，第一个参数表示动作，第二个参数表示频率
  local move_ease_inout1 = cc.EaseInOut:create(createSimpleMoveBy(), 0.65)
  -- 返回执行与本Action对象相反操作的新Action对象
  local move_ease_inout_back1 = move_ease_inout1:reverse()

  -- 创建频率为1.35的easeInOut动作
  local move_ease_inout2 = cc.EaseInOut:create(createSimpleMoveBy(), 1.35)
  -- 返回执行与本Action对象相反操作的新Action对象
  local move_ease_inout_back2 = move_ease_inout2:reverse()

  -- 创建频率为1.0的easeInOut动作
  local move_ease_inout3 = cc.EaseInOut:create(createSimpleMoveBy(), 1.0)
  -- 返回执行与本Action对象相反操作的新Action对象
  local move_ease_inout_back3 = move_ease_inout3:reverse()

  -- 延时动作
  local delay = createSimpleDelayTime()
  local seq1 = cc.Sequence:create(move_ease_inout1,delay,move_ease_inout_back1,createSimpleDelayTime())
  local seq2 = cc.Sequence:create(move_ease_inout2,createSimpleDelayTime(),move_ease_inout_back2,createSimpleDelayTime())
  local seq3 = cc.Sequence:create(move_ease_inout3, createSimpleDelayTime(), move_ease_inout_back3, createSimpleDelayTime() )

  tamara:runAction(cc.RepeatForever:create(seq1))
  kathia:runAction(cc.RepeatForever:create(seq2))
  grossini:runAction(cc.RepeatForever:create(seq3))

  Helper.titleLabel:setString("EaseInOut and rates")
  return layer
end

-----------------------------------
--SpriteEaseExponential 精灵由慢至极快，由极快到慢
-----------------------------------
local function SpriteEaseExponential()
  -- 得到基础层
  local layer = getBaseLayer()
  -- 创建移动动作
  local move = createSimpleMoveBy()
  -- 反操作
  local move_back = move:reverse()

  -- 创建由慢到极快的动作
  local move_ease_in = cc.EaseExponentialIn:create(createSimpleMoveBy())
  local move_ease_in_back = move_ease_in:reverse()

  -- 创建有极快到慢的动作
  local move_ease_out = cc.EaseExponentialOut:create(createSimpleMoveBy())
  local move_ease_out_back = move_ease_out:reverse()

  -- 创建延时动作
  local delay = createSimpleDelayTime()
  local seq1 = cc.Sequence:create(move, delay, move_back, createSimpleDelayTime())
  local seq2 = cc.Sequence:create(move_ease_in, createSimpleDelayTime(), move_ease_in_back, createSimpleDelayTime())
  local seq3 = cc.Sequence:create(move_ease_out, createSimpleDelayTime(), move_ease_out_back, createSimpleDelayTime())

  -- 三个丑八怪执行动作
  grossini:runAction(cc.RepeatForever:create(seq1))
  tamara:runAction(cc.RepeatForever:create(seq2))
  kathia:runAction(cc.RepeatForever:create(seq3))
  -- 设置层标题
  Helper.titleLabel:setString("ExpIn - ExpOut actions")
  return layer
end

-----------------------------------
--SpriteEaseExponentialInOut 精灵由慢至极快再由极快至慢
-----------------------------------
local function SpriteEaseExponentialInOut()
  -- 得到基础层
  local layer = getBaseLayer()
  -- 创建简单移动动作
  local move = createSimpleMoveBy()
  -- 反向操作
  local move_back = move:reverse()

  -- 创建由慢至极快再由极快至慢的动作
  local move_ease = cc.EaseExponentialInOut:create(createSimpleMoveBy())
  local move_ease_back = move_ease:reverse()

  local delay = createSimpleDelayTime()
  local seq1 = cc.Sequence:create(move, delay, move_back, createSimpleDelayTime())
  local seq2 = cc.Sequence:create(move_ease, createSimpleDelayTime(), move_ease_back, createSimpleDelayTime() )

  -- 设置两个丑八怪的位置
  positionForTwo()

  grossini:runAction(cc.RepeatForever:create(seq1))
  tamara:runAction(cc.RepeatForever:create(seq2))

  -- 设置层标题
  Helper.titleLabel:setString("EaseExponentialInOut action")
  return layer
end

-----------------------------------
--SpriteEaseSine 由快至慢、由慢至快
-----------------------------------
local function SpriteEaseSine()
  -- 得到基础层
  local layer = getBaseLayer()

  -- 创建简单移动动作
  local move = createSimpleMoveBy()
  -- 反向操作
  local move_back = move:reverse()

  -- 创建由快至慢的动作
  local move_ease_in = cc.EaseSineIn:create(createSimpleMoveBy())
  local move_ease_in_back = move_ease_in:reverse()

  -- 创建有慢至快的动作
  local move_ease_out = cc.EaseSineOut:create(createSimpleMoveBy())
  local move_ease_out_back = move_ease_out:reverse()

  local delay = createSimpleDelayTime()
  local seq1 = cc.Sequence:create(move, delay, move_back, createSimpleDelayTime() )
  local seq2 = cc.Sequence:create(move_ease_in, createSimpleDelayTime(), move_ease_in_back, createSimpleDelayTime())
  local seq3 = cc.Sequence:create(move_ease_out, createSimpleDelayTime(), move_ease_out_back,createSimpleDelayTime())

  -- 运动了喂
  grossini:runAction(cc.RepeatForever:create(seq1))
  tamara:runAction(cc.RepeatForever:create(seq2))
  kathia:runAction(cc.RepeatForever:create(seq3))

  -- 设置标题
  Helper.titleLabel:setString("EaseSineIn - EaseSineOut")
  return layer
end

-----------------------------------
--SpriteEaseSineInOut 精灵由慢至快再由快至慢
-----------------------------------
local function SpriteEaseSineInOut()
  -- 得到基础层
  local layer = getBaseLayer()
  -- 创建简单移动动作
  local move = createSimpleMoveBy()
  local move_back = move:reverse()

  -- 由慢至快再由快至慢
  local move_ease = cc.EaseSineInOut:create(createSimpleMoveBy())
  local move_ease_back = move_ease:reverse()

  local delay = createSimpleDelayTime()
  local seq1 = cc.Sequence:create(move, delay, move_back, createSimpleDelayTime())
  local seq2 = cc.Sequence:create(move_ease, createSimpleDelayTime(), move_ease_back, createSimpleDelayTime())

  -- 设置两个丑八怪的位置
  positionForTwo()

  -- 丑八怪运动啦
  grossini:runAction(cc.RepeatForever:create(seq1))
  tamara:runAction(cc.RepeatForever:create(seq2))

  Helper.titleLabel:setString("EaseSineInOut action")
  return layer
end

-----------------------------------
--SpriteEaseElastic
-----------------------------------
local function SpriteEaseElastic()
  -- 得到基础层
  local layer = getBaseLayer()
  -- 创建简单移动动作
  local move = createSimpleMoveBy()
  local move_back = move:reverse()

  -- 让目标动作赋予弹性 ，且以目标动作起点位子赋予弹性
  local move_ease_in = cc.EaseElasticIn:create(createSimpleMoveBy())
  local move_ease_in_back = move_ease_in:reverse()

  -- 让目标动作赋予弹性 ，且以目标动作终点位子赋予弹性
  local move_ease_out = cc.EaseElasticOut:create(createSimpleMoveBy())
  local move_ease_out_back = move_ease_out:reverse()

  -- 延迟动作
  local delay = createSimpleDelayTime()
  -- 创建动作序列
  local seq1 = cc.Sequence:create(move, delay, move_back, createSimpleDelayTime() )
  local seq2 = cc.Sequence:create(move_ease_in, createSimpleDelayTime(), move_ease_in_back, createSimpleDelayTime())
  local seq3 = cc.Sequence:create(move_ease_out, createSimpleDelayTime(), move_ease_out_back, createSimpleDelayTime())

  -- 三个丑八怪又执行动作了
  grossini:runAction(cc.RepeatForever:create(seq1))
  tamara:runAction(cc.RepeatForever:create(seq2))
  kathia:runAction(cc.RepeatForever:create(seq3))

  -- 设置标题
  Helper.titleLabel:setString("Elastic In - Out actions")
  return layer
end

-----------------------------------
--SpriteEaseElasticInOut 让目标动作赋予弹性 ，且以目标动作起点和终点位子赋予弹性
-----------------------------------
local function SpriteEaseElasticInOut()
  -- 创建基础层
  local layer = getBaseLayer()
  -- 创建简单移动的动作
  local move = createSimpleMoveBy()

  -- 让目标动作赋予弹性 ，且以目标动作起点和终点位子赋予弹性，频率0.3
  local move_ease_inout1 = cc.EaseElasticInOut:create(createSimpleMoveBy(), 0.3)
  local move_ease_inout_back1 = move_ease_inout1:reverse()

  -- 让目标动作赋予弹性 ，且以目标动作起点和终点位子赋予弹性，频率0.45
  local move_ease_inout2 = cc.EaseElasticInOut:create(createSimpleMoveBy(), 0.45)
  local move_ease_inout_back2 = move_ease_inout2:reverse()

  -- 让目标动作赋予弹性 ，且以目标动作起点和终点位子赋予弹性，频率0.6
  local move_ease_inout3 = cc.EaseElasticInOut:create(createSimpleMoveBy(), 0.6)
  local move_ease_inout_back3 = move_ease_inout3:reverse()


  local delay = createSimpleDelayTime()
  local seq1 = cc.Sequence:create(move_ease_inout1, delay, move_ease_inout_back1, createSimpleDelayTime())
  local seq2 = cc.Sequence:create(move_ease_inout2, createSimpleDelayTime(), move_ease_inout_back2, createSimpleDelayTime())
  local seq3 = cc.Sequence:create(move_ease_inout3, createSimpleDelayTime(), move_ease_inout_back3, createSimpleDelayTime())

  tamara:runAction(cc.RepeatForever:create(seq1))
  kathia:runAction(cc.RepeatForever:create(seq2))
  grossini:runAction(cc.RepeatForever:create(seq3))

  Helper.titleLabel:setString("EaseElasticInOut action")
  return layer
end

-----------------------------------
--SpriteEaseBounce
-----------------------------------
local function SpriteEaseBounce()
  -- 得到基础层
  local layer = getBaseLayer()
  -- 创建简单移动动作
  local move = createSimpleMoveBy()
  local move_back = move:reverse()

  -- 让目标动作缓慢开始
  local move_ease_in = cc.EaseBounceIn:create(createSimpleMoveBy())
  local move_ease_in_back = move_ease_in:reverse()

  -- 让目标动作赋予反弹力，且以目标动作结束位子开始反弹
  local move_ease_out = cc.EaseBounceOut:create(createSimpleMoveBy())
  local move_ease_out_back = move_ease_out:reverse()

  local delay = createSimpleDelayTime()
  local seq1 = cc.Sequence:create(move, delay, move_back, createSimpleDelayTime() )
  local seq2 = cc.Sequence:create(move_ease_in, createSimpleDelayTime(), move_ease_in_back, createSimpleDelayTime())
  local seq3 = cc.Sequence:create(move_ease_out, createSimpleDelayTime(), move_ease_out_back, createSimpleDelayTime())

  -- 烦不烦？
  grossini:runAction(cc.RepeatForever:create(seq1))
  tamara:runAction(cc.RepeatForever:create(seq2))
  kathia:runAction(cc.RepeatForever:create(seq3))

  Helper.titleLabel:setString("Bounce In - Out actions")
  return layer
end

-----------------------------------
--SpriteEaseBounceInOut 让目标动作赋予反弹力，且以目标动作起始与结束位子开始反弹
-----------------------------------
local function SpriteEaseBounceInOut()
    -- 得到基础层
  local layer = getBaseLayer()
  -- 创建简单移动动作
  local move = createSimpleMoveBy()
  local move_back = move:reverse()

  --  让目标动作赋予反弹力，且以目标动作起始与结束位子开始反弹
  local move_ease = cc.EaseBounceInOut:create(createSimpleMoveBy())
  local move_ease_back = move_ease:reverse()

  local delay = createSimpleDelayTime()
  local seq1 = cc.Sequence:create(move, delay, move_back, createSimpleDelayTime())
  local seq2 = cc.Sequence:create(move_ease, createSimpleDelayTime(), move_ease_back, createSimpleDelayTime())

  positionForTwo()

  -- 为什么只用两个丑八怪？
  grossini:runAction(cc.RepeatForever:create(seq1))
  tamara:runAction(cc.RepeatForever:create(seq2))

  Helper.titleLabel:setString("EaseBounceInOut action")
  return layer
end

-----------------------------------
--SpriteEaseBack
-----------------------------------
local function SpriteEaseBack()
  local layer = getBaseLayer()

  local move = createSimpleMoveBy()
  local move_back = move:reverse()

  -- 让目标动作赋予回力 ， 且以目标动作起点位置作为回力点
  local move_ease_in = cc.EaseBackIn:create(createSimpleMoveBy())
  local move_ease_in_back = move_ease_in:reverse()

  -- 让目标动作赋予回力 ， 且以目标动作终点位置作为回力点
  local move_ease_out = cc.EaseBackOut:create(createSimpleMoveBy())
  local move_ease_out_back = move_ease_out:reverse()

  local delay = createSimpleDelayTime()
  local seq1 = cc.Sequence:create(move, delay, move_back, createSimpleDelayTime())
  local seq2 = cc.Sequence:create(move_ease_in, createSimpleDelayTime(), move_ease_in_back, createSimpleDelayTime())
  local seq3 = cc.Sequence:create(move_ease_out, createSimpleDelayTime(), move_ease_out_back, createSimpleDelayTime())

  grossini:runAction(cc.RepeatForever:create(seq1))
  tamara:runAction(cc.RepeatForever:create(seq2))
  kathia:runAction(cc.RepeatForever:create(seq3))

  Helper.titleLabel:setString("Back In - Out actions")
  return layer
end

-----------------------------------
--SpriteEaseBackInOut 让目标动作赋予回力 ， 且以目标动作起点和终点位置作为回力点
-----------------------------------
local function SpriteEaseBackInOut()
  local layer = getBaseLayer()

  local move = createSimpleMoveBy()
  local move_back = move:reverse()

  -- 让目标动作赋予回力 ， 且以目标动作起点和终点位置作为回力点
  local move_ease = cc.EaseBackInOut:create(createSimpleMoveBy())
  local move_ease_back = move_ease:reverse()

  local delay = createSimpleDelayTime()
  local seq1 = cc.Sequence:create(move, delay, move_back, createSimpleDelayTime())
  local seq2 = cc.Sequence:create(move_ease,createSimpleDelayTime(), move_ease_back, createSimpleDelayTime())

  positionForTwo()

  grossini:runAction(cc.RepeatForever:create(seq1))
  tamara:runAction(cc.RepeatForever:create(seq2))

  Helper.titleLabel:setString("EaseBackInOut action")
  return layer
end

-----------------------------------
--SpeedTest 速度测试
-----------------------------------
local SpeedTest_entry = nil
local SpeedTest_action1 = nil
local SpeedTest_action2 = nil
local SpeedTest_action3 = nil

local function altertime(dt)
  -- 设置速度
  SpeedTest_action1:setSpeed(math.random() * 2)
  SpeedTest_action2:setSpeed(math.random() * 2)
  SpeedTest_action3:setSpeed(math.random() * 2)
end

local function SpeedTest_onEnterOrExit(tag)
  if tag == "enter" then
    SpeedTest_entry = scheduler:scheduleScriptFunc(altertime, 1.0, false)
  elseif tag == "exit" then
    scheduler:unscheduleScriptEntry(SpeedTest_entry)
  end
end

-- 速度测试
local function SpeedTest()
  local layer = getBaseLayer()
  --参数1：跳到目标动作位子的所需时间
  --参数2：目标位置
  --参数3：跳的高度
  --参数4跳到目标位置的次数
  local jump1 = cc.JumpBy:create(4, cc.p(- s.width + 80, 0), 100, 4)
  local jump2 = jump1:reverse() -- 反向动作
  -- 旋转动作，参数1：旋转的时间  参数2：旋转的角度  0 - 360
  local rot1 = cc.RotateBy:create(4, 360 * 2)
  local rot2 = rot1:reverse()

  -- 蹦蹦跳跳的动作序列
  local seq3_1 = cc.Sequence:create(jump2, jump1)
  -- 旋转的动作序列
  local seq3_2 = cc.Sequence:create(rot1, rot2)

  -- 让多个动作同时执行
  local spawn = cc.Spawn:create(seq3_1, seq3_2)
  -- 速度动作1
  SpeedTest_action1 = cc.Speed:create(cc.RepeatForever:create(spawn), 1.0)

  -- 克隆一个spawn
  local spawn2 = spawn:clone()
  -- 速度动作2
  SpeedTest_action2 = cc.Speed:create(cc.RepeatForever:create(spawn2), 1.0)

  local spawn3 = spawn:clone()
  -- 速度动作3
  SpeedTest_action3 = cc.Speed:create(cc.RepeatForever:create(spawn3), 1.0)

  -- 最后一个了
  grossini:runAction(SpeedTest_action2)
  tamara:runAction(SpeedTest_action3)
  kathia:runAction(SpeedTest_action1)

  layer:registerScriptHandler(SpeedTest_onEnterOrExit)

  Helper.titleLabel:setString("Speed action")
  return layer
end

function EaseActionsTest()
  -- 创建场景
  local scene = cc.Scene:create()
  cclog("EaseActionsTest")

  -- 创建方法表
  Helper.createFunctionTable = {
    SpriteEase,
    SpriteEaseInOut,
    SpriteEaseExponential,
    SpriteEaseExponentialInOut,
    SpriteEaseSine,
    SpriteEaseSineInOut,
    SpriteEaseElastic,
    SpriteEaseElasticInOut,
    SpriteEaseBounce,
    SpriteEaseBounceInOut,
    SpriteEaseBack,
    SpriteEaseBackInOut,
    SpeedTest
  }
  -- 添加子节点
  scene:addChild(SpriteEase())
  -- 添加返回菜单
  scene:addChild(CreateBackMenuItem())

  return scene
end