# ScriptDebuggerService（ロブロックス クラス）

> Provides programmatic breakpoint management, execution control, and runtime inspection of Luau scripts during a playtest.

- URL：https://roblox.minecraft-okinawa.com/reference/classes/ScriptDebuggerService/
- 公式：https://create.roblox.com/docs/reference/engine/classes/ScriptDebuggerService
- 受け継いでいるクラス：Instance

## メソッド

- `ScriptDebuggerService:AddBreakpoint(scriptInstance: LuaSourceContainer, breakpoint: Dictionary): ScriptBreakpointResult`：Adds a breakpoint to a script. If a breakpoint already exists on the same script and line, its data is replaced.
- `ScriptDebuggerService:ClearBreakpoints(): ()`：Removes all breakpoints across all scripts.
- `ScriptDebuggerService:Evaluate(expression: string, frameId: int?): ScriptEvaluateResult`：Evaluates a Luau expression in a stack frame's context.
- `ScriptDebuggerService:GetRootVariables(frameId: int): List<ScriptVariable>`：Returns the root variables (locals, upvalues, globals) for a stack frame.
- `ScriptDebuggerService:GetStackTrace(threadId: int, startFrame: int?): DebugStackTraceResult`：Returns the call stack for a paused thread.
- `ScriptDebuggerService:GetThreads(): List<ScriptDebugThread>`：Returns all paused Luau threads.
- `ScriptDebuggerService:GetVariables(variablesReference: int): List<ScriptVariable>`：Drills into structured variables (tables, Class.Instance|Instances).
- `ScriptDebuggerService:Pause(): ()`：Requests the debugger to pause at the next safe point.
- `ScriptDebuggerService:RemoveBreakpoint(scriptInstance: LuaSourceContainer, line: int): boolean`：Removes the breakpoint on the given script and line.
- `ScriptDebuggerService:SetExceptionBreakMode(breakMode: DebugBreakModeType): ()`：Controls when the debugger pauses on exceptions.

## イベント

- `ScriptDebuggerService.Resumed(threadIds: Array)`：Fires when a previously paused thread resumes execution.

## コールバック

- `ScriptDebuggerService:OnStopped(stopped: Dictionary): ScriptResumeAction`：The primary callback for reacting to debugger pauses. Returns a resume action.

英語の説明とメンバー一覧：Roblox Creator Documentation（CC BY 4.0）。日本語の解説はこのサイト独自のものです。

執筆：鈴木孝昌（現役プロジェクトマネージャー／プログラミング講師）／運営：沖縄マイクラ部 プログラミングスクール「クロスウェーブ」（https://minecraft-okinawa.com/）