core: fix hotbar

ReplicatedStorage/Shared/ClientState.lua

@@ -0,0 +1,128 @@
+--!native
+--!optimize 2
+
+local RunService = game:GetService("RunService")
+
+if RunService:IsServer() then
+	error("ClientState can only be required on the client")
+end
+
+local Players = game:GetService("Players")
+local ReplicatedStorage = game:GetService("ReplicatedStorage")
+
+local Replica = require(ReplicatedStorage.Packages.replica)
+
+local ClientState = {}
+
+local HOTBAR_SIZE = 10
+
+local localPlayer = Players.LocalPlayer
+local replicaForPlayer = nil
+local changed = Instance.new("BindableEvent")
+
+local function fireChanged()
+	changed:Fire()
+end
+
+local function onReplicaNew(replica)
+	local tags = replica.Tags or {}
+	if tags.UserId ~= localPlayer.UserId and tags.Player ~= localPlayer then
+		return
+	end
+
+	replicaForPlayer = replica
+	replica:OnChange(fireChanged)
+	fireChanged()
+end
+
+Replica.OnNew("ClientState", onReplicaNew)
+Replica.RequestData()
+
+function ClientState:IsReady(): boolean
+	return replicaForPlayer ~= nil
+end
+
+function ClientState:GetReplica()
+	return replicaForPlayer
+end
+
+function ClientState:GetSelectedSlot(): number?
+	if not replicaForPlayer then
+		return nil
+	end
+	return replicaForPlayer.Data.selectedSlot
+end
+
+local function getInventory()
+	return replicaForPlayer and replicaForPlayer.Data.inventory or nil
+end
+
+function ClientState:GetItemInfo(blockId: any)
+	if not replicaForPlayer or not blockId then
+		return nil
+	end
+	local inv = getInventory()
+	local entry = inv and inv[tostring(blockId)]
+	if not entry then
+		return nil
+	end
+
+	return {
+		id = tostring(blockId),
+		name = entry.name or tostring(blockId),
+		count = entry.count,
+	}
+end
+
+function ClientState:GetHotbarSlots(): {string}
+	if not replicaForPlayer then
+		local slots = table.create(HOTBAR_SIZE)
+		for i = 1, HOTBAR_SIZE do
+			slots[i] = ""
+		end
+		return slots
+	end
+
+	return replicaForPlayer.Data.hotbar or {}
+end
+
+function ClientState:GetSlotInfo(slot: number)
+	if not replicaForPlayer then
+		return nil
+	end
+	local hotbar = replicaForPlayer.Data.hotbar
+	if not hotbar then
+		return nil
+	end
+	local id = hotbar[slot]
+	if not id then
+		return nil
+	end
+	return ClientState:GetItemInfo(id)
+end
+
+function ClientState:GetSelectedBlock()
+	if not replicaForPlayer then
+		return nil
+	end
+	local slot = ClientState:GetSelectedSlot()
+	if not slot then
+		return nil
+	end
+	return ClientState:GetSlotInfo(slot)
+end
+
+function ClientState:SetSelectedSlot(slot: number)
+	if not replicaForPlayer then
+		return
+	end
+	local hotbar = replicaForPlayer.Data.hotbar
+	if not hotbar or not hotbar[slot] then
+		return
+	end
+	replicaForPlayer:FireServer("SelectHotbarSlot", slot)
+end
+
+ClientState.Changed = changed.Event
+
+return ClientState