--- name: ForceField last_updated: 2026-06-11T17:05:16Z inherits: - Instance - Object type: class memory_category: Instances summary: "Protects a Humanoid from taking damage dealt through the Humanoid:TakeDamage() method and protects BaseParts from having their joints broken due to an Explosion." --- # Class: ForceField > Protects a [Humanoid](/docs/reference/engine/classes/Humanoid.md) from taking damage dealt through the > [Humanoid:TakeDamage()](/docs/reference/engine/classes/Humanoid.md) method and protects [BaseParts](/docs/reference/engine/classes/BasePart.md) > from having their joints broken due to an [Explosion](/docs/reference/engine/classes/Explosion.md). ## Description A **ForceField** protects a [Humanoid](/docs/reference/engine/classes/Humanoid.md) from taking damage dealt through the [Humanoid:TakeDamage()](/docs/reference/engine/classes/Humanoid.md) method and protects [BaseParts](/docs/reference/engine/classes/BasePart.md) from having their joints broken due to an [Explosion](/docs/reference/engine/classes/Explosion.md). A new **ForceField** is created when a character spawns on a [SpawnLocation](/docs/reference/engine/classes/SpawnLocation.md) and the [SpawnLocation.Duration](/docs/reference/engine/classes/SpawnLocation.md) property is greater than zero. #### Damage and Joints A **ForceField** influences the instance it's parented to. When parented to a [Model](/docs/reference/engine/classes/Model.md), it protects all of the [BaseParts](/docs/reference/engine/classes/BasePart.md) descending from that model. If parented to a [BasePart](/docs/reference/engine/classes/BasePart.md), the part's joints will only be protected if both the part and the part it's connected to also contain a **ForceField**. **ForceField** only protects [Humanoids](/docs/reference/engine/classes/Humanoid.md) from damage dealt by the [Humanoid:TakeDamage()](/docs/reference/engine/classes/Humanoid.md) method. Humanoids can still be damaged by setting [Humanoid.Health](/docs/reference/engine/classes/Humanoid.md) directly. For this reason, it's advised that you use [Humanoid:TakeDamage()](/docs/reference/engine/classes/Humanoid.md) to assign damage while accounting for force field protection. #### Visualization When [ForceField.Visible](/docs/reference/engine/classes/ForceField.md) is set to true, a particle effect is created. A number of rules determine where this effect will be emitted from: - When parented to a [Model](/docs/reference/engine/classes/Model.md), if the model includes a [Humanoid](/docs/reference/engine/classes/Humanoid.md) named **Humanoid** with [Humanoid.RigType](/docs/reference/engine/classes/Humanoid.md) set to R15, the effect will be emitted from the part named **UpperTorso**. Otherwise, the effect will be emitted from the part named **Torso**. - When parented to a [BasePart](/docs/reference/engine/classes/BasePart.md) the effect will be emitted from the part's [BasePart.Position](/docs/reference/engine/classes/BasePart.md). ## Code Samples **ForceField Instantiation** This code sample includes a function that will give a Player a ForceField for a specific duration. ```lua local Players = game:GetService("Players") local FORCE_FIELD_DURATION = 15 local function giveForcefield(player, duration) local character = player.Character if character then local forceField = Instance.new("ForceField") forceField.Visible = true forceField.Parent = character if duration then task.delay(duration, function() if forceField then forceField:Destroy() end end) end end end local function onPlayerAdded(player) player.CharacterAdded:Connect(function(_character) giveForcefield(player, FORCE_FIELD_DURATION) end) end Players.PlayerAdded(onPlayerAdded) ``` ## Properties ### Property: ForceField.Visible ```json { "type": "boolean", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Data", "capabilities": [ "AvatarBehavior" ] } ``` Determines whether or not the [ForceField](/docs/reference/engine/classes/ForceField.md) particle effect is visible. Setting this to `false` lets you replace the default particle effect with a custom effect as demonstrated in the following code sample. **Custom ForceField Effect** This sample includes a function that will replace the default ForceField particle effect with an effect using ParticleEmitters that can be modified by the developer. ```lua local Players = game:GetService("Players") local FORCE_FIELD_DURATION = 15 local function createCustomForcefield(player, duration) local character = player.Character if character then local humanoid = character:FindFirstChild("Humanoid") if humanoid then -- find the torso local torsoName = humanoid.RigType == Enum.HumanoidRigType.R15 and "UpperTorso" or "Torso" local torso = character:FindFirstChild(torsoName) if torso then -- create a forcefield local forceField = Instance.new("ForceField") forceField.Visible = false -- not visible -- create a particle effect local particleEmitter = Instance.new("ParticleEmitter") particleEmitter.Enabled = true particleEmitter.Parent = torso -- listen for the forcefield being removed forceField.AncestryChanged:Connect(function(_child, parent) if not parent then if particleEmitter and particleEmitter.Parent then particleEmitter:Destroy() end end end) -- parent the forcefield and set it to expire forceField.Parent = character if duration then task.delay(duration, function() if forceField then forceField:Destroy() end end) end end end end end local function onPlayerAdded(player) player.CharacterAdded:Connect(function(_character) createCustomForcefield(player, FORCE_FIELD_DURATION) end) end Players.PlayerAdded(onPlayerAdded) ``` ## Inherited Members ### From [Instance](/docs/reference/engine/classes/Instance.md) - **Property `Archivable`** (`boolean`): Determines if an Instance and its descendants can be cloned using - **Property `archivable`** (`boolean`): *(deprecated, hidden)* - **Property `Capabilities`** (`SecurityCapabilities`): The set of capabilities allowed to be used for scripts inside this - **Property `Name`** (`string`): A non-unique identifier of the Instance. - **Property `Parent`** (`Instance`): Determines the hierarchical parent of the Instance. - **Property `PredictionMode`** (`PredictionMode`): - **Property `RobloxLocked`** (`boolean`): A deprecated property that used to protect CoreGui objects. *(hidden)* - **Property `Sandboxed`** (`boolean`): When enabled, the instance can only access abilities in its `Capabilities` - **Property `UniqueId`** (`UniqueId`): A unique identifier for the instance. - **Method `AddTag(tag: string): ()`**: Applies a tag to the instance. - **Method `children(): Instances`**: Returns an array of the object's children. *(deprecated)* - **Method `ClearAllChildren(): ()`**: This method destroys all of an instance's children. - **Method `Clone(): Instance`**: Create a copy of an instance and all its descendants, ignoring instances - **Method `clone(): Instance`**: *(deprecated)* - **Method `Destroy(): ()`**: Sets the Instance.Parent property to `nil`, locks the - **Method `destroy(): ()`**: *(deprecated)* - **Method `FindFirstAncestor(name: string): Instance?`**: Returns the first ancestor of the Instance whose - **Method `FindFirstAncestorOfClass(className: string): Instance?`**: Returns the first ancestor of the Instance whose - **Method `FindFirstAncestorWhichIsA(className: string): Instance?`**: Returns the first ancestor of the Instance for whom - **Method `FindFirstChild(name: string, recursive?: boolean): Instance?`**: Returns the first child of the Instance found with the given name. - **Method `findFirstChild(name: string, recursive?: boolean): Instance`**: *(deprecated)* - **Method `FindFirstChildOfClass(className: string): Instance?`**: Returns the first child of the Instance whose - **Method `FindFirstChildWhichIsA(className: string, recursive?: boolean): Instance?`**: Returns the first child of the Instance for whom - **Method `FindFirstDescendant(name: string): Instance?`**: Returns the first descendant found with the given Instance.Name. - **Method `GetActor(): Actor?`**: Returns the Actor associated with the Instance, if any. - **Method `GetAttribute(attribute: string): Variant`**: Returns the value which has been assigned to the given attribute name. - **Method `GetAttributeChangedSignal(attribute: string): RBXScriptSignal`**: Returns an event that fires when the given attribute changes. - **Method `GetAttributes(): Dictionary`**: Returns a dictionary of the instance's attributes. - **Method `GetChildren(): Instances`**: Returns an array containing all of the instance's children. - **Method `getChildren(): Instances`**: *(deprecated)* - **Method `GetDebugId(scopeLength?: int): string`**: Returns a coded string of the debug ID used internally by Roblox. - **Method `GetDescendants(): Instances`**: Returns an array containing all of the descendants of the instance. - **Method `GetFullName(): string`**: Returns a string describing the instance's ancestry. - **Method `GetStyled(name: string, selector: string?): Variant`**: Returns the styled or explicitly modified value of the specified property, - **Method `GetStyledPropertyChangedSignal(property: string): RBXScriptSignal`**: - **Method `GetTags(): Array`**: Gets an array of all tags applied to the instance. - **Method `HasTag(tag: string): boolean`**: Check whether the instance has a given tag. - **Method `IsAncestorOf(descendant: Instance): boolean`**: Returns true if an Instance is an ancestor of the given - **Method `IsDescendantOf(ancestor: Instance): boolean`**: Returns `true` if an Instance is a descendant of the given - **Method `isDescendantOf(ancestor: Instance): boolean`**: *(deprecated)* - **Method `IsPropertyModified(property: string): boolean`**: Returns `true` if the value stored in the specified property is not equal - **Method `QueryDescendants(selector: string): Instances`**: - **Method `Remove(): ()`**: Sets the object's `Parent` to `nil`, and does the same for all its *(deprecated)* - **Method `remove(): ()`**: *(deprecated)* - **Method `RemoveTag(tag: string): ()`**: Removes a tag from the instance. - **Method `ResetPropertyToDefault(property: string): ()`**: Resets a property to its default value. - **Method `SetAttribute(attribute: string, value: Variant): ()`**: Sets the attribute with the given name to the given value. - **Method `WaitForChild(childName: string, timeOut: double): Instance`**: Returns the child of the Instance with the given name. If the - **Event `AncestryChanged`**: Fires when the Instance.Parent property of this object or one of - **Event `AttributeChanged`**: Fires whenever an attribute is changed on the Instance. - **Event `ChildAdded`**: Fires after an object is parented to this Instance. - **Event `childAdded`**: *(deprecated)* - **Event `ChildRemoved`**: Fires after a child is removed from this Instance. - **Event `DescendantAdded`**: Fires after a descendant is added to the Instance. - **Event `DescendantRemoving`**: Fires immediately before a descendant of the Instance is removed. - **Event `Destroying`**: Fires immediately before (or is deferred until after) the instance is - **Event `StyledPropertiesChanged`**: Fires whenever any style property is changed on the instance, including ### From [Object](/docs/reference/engine/classes/Object.md) - **Property `ClassName`** (`string`): A read-only string representing the class this Object belongs to. - **Property `className`** (`string`): *(deprecated)* - **Method `GetPropertyChangedSignal(property: string): RBXScriptSignal`**: Get an event that fires when a given property of the object changes. - **Method `IsA(className: string): boolean`**: Returns true if an object's class matches or inherits from a given class. - **Method `isA(className: string): boolean`**: *(deprecated)* - **Event `Changed`**: Fires immediately after a property of the object changes, with some