Helper functions for using cocos2dx actions in lua coroutine.

gistfile1.lua

-- 使用CCSequence将多个action串起来
function sequenceActions(...)
    local actions = { ... }
    if #actions == 1 then
        return actions[1]
    end

    local pre_action = actions[1]
    for i = 2, #actions do
        pre_action = CCSequence:createWithTwoActions(pre_action, actions[i])
    end
    return pre_action
end

function spwarnActions(...)
    local actions = { ... }
    if #actions == 1 then
        return actions[1]
    end

    local pre_action = actions[1]
    for i = 2, #actions do
        pre_action = CCSpawn:createWithTwoActions(pre_action, actions[i])
    end
    return pre_action
end

-- 在指定的node上同时执行一个或多个给定的action，
-- 当所有action执行完成后从函数返回.
--      ccPerformActions(node,actions,[node,actions,]...)
--          actions is a array like {action,action,action,...}
-- WARNING: 仅能在协作线程中使用
function coPerformActions(...)
    local co = coroutine.running()
    assert(co, 'coPerformActions should only be used in a coroutine.')
    local nodeActions = { ... }
    assert(#nodeActions % 2 == 0 and #nodeActions > 0)

    local max_duration = -1
    local max_duration_node

    for ii = 1, #nodeActions, 2 do
        local node = nodeActions[ii]
        local actions = nodeActions[ii + 1]
        if type(actions) ~= 'table' then
            actions = { actions }
        end
        for _,action in ipairs(actions) do
            local d = action:getDuration()
            if d > max_duration then
                max_duration = d
                max_duration_node = node
            end
            node:runAction(action)
        end
    end

    local delayAction = CCDelayTime:create(max_duration)
    local callfuncAction = CCCallFunc:create(function()
            coroutine.resume(co)
    end)
    local sequenceAction = CCSequence:createWithTwoActions(delayAction, callfuncAction)
    max_duration_node:runAction(sequenceAction)
    coroutine.yield()
end