04_DynamicBinding.lua

--[[
 说明：除了实现 UnLuaInterface 的静态绑定方式外，还可以在运行时动态绑定对象到Lua

 对于 Actor 类，可以使用 SpawnActor 接口，例如：
 World:SpawnActor(SpawnClass, Transform, AlwaysSpawn, self, self, "Tutorials.GravitySphereActor")

 对于非 Actor 类，可以使用 NewObject 接口，例如：
 NewObject(WidgetClass, self, nil, "Tutorials.IconWidget")

 注意：无论哪种绑定方式，都需要指定脚本文件路径。它是一个相对于 {工程目录}/Content/Script 下的相对路径。
]]--

local Screen = require "Tutorials.Screen"

local M = UnLua.Class()

function M:ReceiveBeginPlay()
 local msg =
 [[
 鼠标左键：创建动态绑定的 Actor

 鼠标右键：创建动态绑定的 Object

 —— 本示例来自 "Content/Script/Tutorials.04_DynamicBinding.lua"
 ]]
 Screen.Print(msg)
end

function M:LeftMouseButton_Pressed()
 local World = self:GetWorld()
 local SpawnClass = self.SpawnClass
 local Transform = self.SpawnPointActor:GetTransform()
 local AlwaysSpawn = UE.ESpawnActorCollisionHandlingMethod.AlwaysSpawn
 World:SpawnActor(SpawnClass, Transform, AlwaysSpawn, self, self, "Tutorials.GravitySphereActor")
end

function M:RightMouseButton_Pressed()
 local WidgetClass = self.WidgetClass
 local img = NewObject(WidgetClass, self, nil, "Tutorials.IconWidget")
 img:AddToViewport()
 img:RandomPosition()
end

return M