How to make a Roblox quest system (with AI)

Files Forge AI ships for this prompt

9 files · 310 lines · 1m 18s · 1 credit

Sample output: ServerScriptService/QuestManager.lua

--!strict
-- ServerScriptService/QuestManager.lua  (Forge AI · excerpt)
local Players = game:GetService("Players")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local QuestConfig = require(ReplicatedStorage.Modules.QuestConfig)
local SaveService = require(script.Parent.QuestSaveService)
local QuestUpdate = ReplicatedStorage:WaitForChild("Remotes"):WaitForChild("QuestUpdate")

type Quest = { id: string, active: { [string]: number }, completed: { [string]: boolean } }

local function getState(player: Player): Quest
    return SaveService:Get(player) or { id = "", active = {}, completed = {} }
end

local function notifyProgress(player: Player, questId: string, objectiveId: string, current: number)
    QuestUpdate:FireClient(player, { questId = questId, objective = objectiveId, current = current })
end

local QuestManager = {}

function QuestManager:reportEvent(player: Player, eventType: string, target: string?)
    -- eventType: "kill", "collect", "reach", "talk"
    local state = getState(player)
    for activeId, _ in pairs(state.active) do
        local def = QuestConfig[activeId]
        if not def then continue end
        for _, obj in ipairs(def.objectives) do
            if obj.type == eventType and (not obj.target or obj.target == target) then
                local key = activeId .. ":" .. obj.id
                state.active[key] = (state.active[key] or 0) + 1
                notifyProgress(player, activeId, obj.id, state.active[key])

                if state.active[key] >= obj.required then
                    -- Check if all objectives done → complete quest
                    QuestManager:tryComplete(player, activeId, def, state)
                end
            end
        end
    end
    SaveService:Set(player, state)
end

return QuestManager