准备制作食材预处理流程，为lua直接读data table做基建

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Content/Lua/HomeLand/UI/Hearth/HearthMain.lua

@@ -1,14 +1,39 @@
 local WidgetUtils = require("Utils.UI.WidgetUtils")
+local Emitter = require("Utils.Emitter")
 local HearthMain = {}
 
+function HearthMain:ctor()
+    self.switch_to_prep_cook_station_handle = nil
+end
+
 function HearthMain:OnInitialized()
     self.BtnBack.OnClicked:Add(function()
-        WidgetUtils.Hide(self, "HearthMain")
-    end)
-    self.BtnOpenRecipe.OnClicked:Add(function()
-        WidgetUtils.Show(self, "RecipeMenu")
+        self:BP_Close()
     end)
+end
 
+function HearthMain:Construct()
+    self.switch_to_prep_cook_station_handle = Emitter.OnEvent(
+        "switch_to_prep_station", function() self:SwitchToPrepCookStation() end
+    )
+end
+
+function HearthMain:Destruct()
+    Emitter.OffEvent("switch_to_prep_station", self.switch_to_prep_cook_station_handle)
+end
+
+function HearthMain:SwitchToPrepCookStation()
+    if self:IsAnimationPlaying(self.Anim_StartPrepCook) then
+        return
+    end
+    self:PlayAnimation(self.Anim_StartPrepCook, 0, 1, 0, 1, false)
+end
+
+function HearthMain:OnAnimationFinished(anim)
+    if anim == self.Anim_StartPrepCook then
+        WidgetUtils.Show(self, "PreCookStation")
+        print("HearthMain:OnAnimationFinished")
+    end
 end
 
 return Class(nil, nil, HearthMain)