UnLua/Content/Script/Tutorials/06_NativeContainers.lua at master · Tencent/UnLua · GitHub

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--[[

说明：创建原生容器时通常需要指定参数类型，来确定容器内存放的数据类型

例如：

local array = TArray({ElementType})

local set = TSet({ElementType})

local map = TMap({KeyType}, {ValueType})

参数类型示例实际类型

boolean true Boolean

number 0 Interger

string "" String

table FVector Vector

userdata FVector(1,1,1) Vector

创建完成后，和原来的原生容器类型使用方式是相同的，更多接口可以参考源码：

TArray Plugins\UnLua\Source\UnLua\Private\BaseLib\LuaLib_Array.cpp

TSet Plugins\UnLua\Source\UnLua\Private\BaseLib\LuaLib_Set.cpp

TMap Plugins\UnLua\Source\UnLua\Private\BaseLib\LuaLib_Map.cpp

]] --

local Screen = require "Tutorials.Screen"

local M = UnLua.Class()

local function print_intro()

local msg =

[[

使用以下按键执行各个示例，并在控制台查看输出：

数字1：TArray

数字2：TSet

数字3：TMap

—— 本示例来自 "Content/Script/Tutorials.06_NativeContainers.lua"

]] ..

"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n"

Screen.Print(msg)

end

function M:ReceiveBeginPlay()

print_intro()

end

local function dump_array(array)

local ret = {}

for i = 1, array:Length() do

table.insert(ret, array:Get(i))

end

return "[" .. table.concat(ret, ",") .. "]"

end

function M:One_Pressed()

print_intro()

Screen.Print("TArray")

print("========== TArray ==========")

print("注：索引从1开始")

local array = UE.TArray(0)

print("New: ", dump_array(array))

array:Add(1)

array:Add(2)

array:Add(3)

print("Add: ", dump_array(array))

local index = array:AddUnique(1)

print("AddUnique(1): ", dump_array(array), "Returns:", index)

array:Remove(1)

print("Remove(1): ", dump_array(array))

array:RemoveItem(3)

print("RemoveItem(3):", dump_array(array))

array:Insert(4, 1)

print("Insert(1, 4): ", dump_array(array))

array:Shuffle()

print("Shuffle(): ", dump_array(array))

array:Clear()

print("Clear: ", dump_array(array))

end

local function dump_set(set)

local array = set:ToArray()

local ret = {}

for i = 1, array:Length() do

table.insert(ret, array:Get(i))

end

return "(" .. table.concat(ret, ",") .. ")"

end

function M:Two_Pressed()

print_intro()

Screen.Print("TSet")

print("========== TSet ==========")

local set = UE.TSet(0)

print("New: ", dump_set(set))

set:Add(1)

set:Add(2)

set:Add(3)

print("Add: ", dump_set(set))

print("Length: ", set:Length())

print("Contains(3): ", set:Contains(3))

set:Clear()

print("Clear: ", dump_set(set))

end

local function dump_map(map)

local ret = {}

local keys = map:Keys()

for i = 1, keys:Length() do

local key = keys:Get(i)

local value = map:Find(key)

table.insert(ret, key .. ":" .. tostring(value))

end

return "{" .. table.concat(ret, ",") .. "}"

end

function M:Three_Pressed()

print_intro()

Screen.Print("TMap")

print("========== TMap ==========")

local map = UE.TMap(0, true)

print("New: ", dump_map(map))

map:Add(1, true)

map:Add(2, false)

map:Add(3, true)

print("Add: ", dump_map(map))

map:Remove(2)

print("Remove(2): ", dump_map(map))

local value = map:Find(3)

print("Find(3): ", dump_map(map), "Returns:", value)

map:Clear()

print("Clear: ", dump_map(map))

end

return M

UnLua/Content/Script/Tutorials/06_NativeContainers.lua at master · Tencent/UnLua · GitHub

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