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RocketPropulsion

Deprecated

RocketPropulsion

Deprecated

The RocketPropulsion object applies a force on a part so that it both follows and faces a target part. It acts like a hybrid of BodyPosition and BodyGyro. Unlike other BodyMovers, a RocketPropulsion must be instructed to begin applying a force: call RocketPropulsion/Fire|Fire to start, or call RocketPropulsion/Abort|Abort to stop.

Below is an animation of a blue Part with a RocketPropulsion. The RocketPropulsion/Target|Target is set to a tall red Part that is being dragged around in a circle in Studio. Notice how the blue part homes in to the target:
A blue Part with a RocketPropulsion following a tall red Part that is being dragged around in Studio

You can detect when the part reaches its target using the RocketPropulsion/ReachedTarget|ReachedTarget event, which fires once the part is within the RocketPropulsion/TargetRadius|TargetRadius of the RocketPropulsion/Target|Target.

RocketPropulsion has the most physics-related properties out of all the BodyMovers. It is helpful to separate the properties out into categories based on what they control:

  • Goal: RocketPropulsion/Target|Target, RocketPropulsion/TargetOffset|TargetOffset and RocketPropulsion/TargetRadius|TargetRadius
  • Position (Thrust): RocketPropulsion/MaxSpeed|MaxSpeed, RocketPropulsion/MaxThrust|MaxThrust, RocketPropulsion/ThrustD|ThrustD and RocketPropulsion/ThrustP|ThrustP
  • Rotation (Turn): - RocketPropulsion/CartoonFactor|CartoonFactor, RocketPropulsion/MaxTorque|MaxTorque, RocketPropulsion/TurnD|TurnD and RocketPropulsion/TurnP|TurnP

Remember, you don’t need to use both the translational and rotational force features of a RocketPropulsion: by setting RocketPropulsion/MaxThrust|MaxThrust to 0, you can make a part just face the target without having it follow the target around (consider also using a BodyPosition in addition). Similarly, by setting RocketPropulsion/MaxTorque|MaxTorque to (0, 0, 0), you can have a part simply follow another object without facing it (use a BodyGyro if you want the object to maintain a specific orientation).

Properties

float

CartoonFactor

Determines the tendency of the part to face the RocketPropulsion/Target|Target

float

MaxSpeed

Determines the maximum speed at which the part will move toward the RocketPropulsion/Target|Target

float

MaxThrust

Determines the maximum amount of thrust that will be exerted to move the part

Vector3

MaxTorque

Determines the maximum amount of torque that may be exerted to rotate the part towards the RocketPropulsion/Target|Target

BasePart

Target

Determines the object towards which the part should follow/face

Vector3

TargetOffset

Determines the world offset from the RocketPropulsion/Target|Target toward which the force/torque is exerted

float

TargetRadius

Determines the maximum distance from the RocketPropulsion/Target|Target the part must be in order for RocketPropulsion/ReachedTarget|ReachedTarget to be fired

float

ThrustD

Determines the dampening applied to the part in order to prevent it from overshooting the RocketPropulsion/Target|Target

float

ThrustP

Determines how aggressive of a force is applied in reaching the RocketPropulsion/Target|Target

float

TurnD

Determines the amount of dampening that to use in reaching the RocketPropulsion/Target|Target

float

TurnP

Determines how aggressive of a torque is applied in facing the RocketPropulsion/Target|Target

Inherited from Instance: Show Hide

int

DataCost

[ReadOnly] [NotReplicated]
The cost of saving the instance using data persistence.
Instance

Parent

Determines the hierarchical parent of the `Instance`.
bool

RobloxLocked

If true, the `Instance` and its descendants cannot be indexed or edited by a `Script` or `LocalScript` and will throw an error if it is attempted.
string

ClassName

[ReadOnly] [NotReplicated]
A read-only string representing the class this `Instance` belongs to.
string

Name

A non-unique identifier of the `Instance`.
bool

Archivable

Determines if an `Instance` can be cloned using `/Instance/Clone` or saved to file.

Functions

void

Abort ( )

Causes the Rocket to stop moving towards its target, making it fall.

void

Fire ( )

Causes the rocket to fly towards Target.

Inherited from Instance: Show Hide

Array

GetDescendants ( )

[CustomLuaState]
Returns an array containing all of the `Instance`'s descendants.
bool

IsAncestorOf ( Instance descendant )

Returns true if an `Instance` is an ancestor of the given descendant.
bool

IsDescendantOf ( Instance ancestor )

Returns true if an `Instance` is a descendant of the given ancestor.
Instance

FindFirstChildWhichIsA ( string className , bool recursive )

Returns the first child of the `Instance` for whom `Instance/IsA` returns true for the given className.
Instance

FindFirstChildOfClass ( string className )

Returns the first child of the `Instance` whose `Instance/ClassName|ClassName` is equal to the given className.
Instance

FindFirstChild ( string name , bool recursive )

Returns the first child of the `Instance` found with the given name.
Instance

FindFirstAncestorWhichIsA ( string className )

Returns the first ancestor of the `Instance` for whom `Instance/IsA` returns true for the given className.
Instance

FindFirstAncestorOfClass ( string className )

Returns the first ancestor of the `Instance` whose `Instance/ClassName` is equal to the given className.
Instance

FindFirstAncestor ( string name )

Returns the first ancestor of the `Instance` whose `Instance/Name` is equal to the given name.
bool

IsA ( string className )

Returns true if an `Instance`'s class matches or inherits from a given class
Instance

WaitForChild ( string childName , double timeOut )

[CustomLuaState] [CanYield]
Returns the child of the `Instance` with the given name. If the child does not exist, it will yield the current thread until it does.
RBXScriptSignal

GetPropertyChangedSignal ( string property )

Get an event that fires when a given property of an object changes.
string

GetFullName ( )

Returns a string showing the `Instance`'s ancestry.
string

GetDebugId ( int scopeLength )

[NotBrowsable]
Returns a coded string of the `Instance`s DebugId used internally by Roblox.
Objects

GetChildren ( )

Returns an array containing all of the `Instance`'s children.
void

Destroy ( )

Sets the `Instance/Parent` property to nil, locks the `Instance/Parent` property, disconnects all connections and calls Destroy on all children.
Instance

Clone ( )

Create a deep copy of a Roblox instance and descendants where `Archivable = true`.
void

ClearAllChildren ( )

This function destroys all of an `Instance`'s children.

Events

RBXScriptSignal

ReachedTarget ( )

Fired when the Rocket comes within TargetRadius of the Target. This is used to make the rocket work, such as make an explosion when it flies near the Target.

Inherited from Instance: Show Hide

RBXScriptSignal

AncestryChanged ( Instance child , Instance parent )

Fires when the `Instance/Parent` property of the object or one of its ancestors is changed.
RBXScriptSignal

ChildAdded ( Instance child )

Fires when an object is parented to this `Instance`.
RBXScriptSignal

ChildRemoved ( Instance child )

Fires when a child is removed from this `Instance`.
RBXScriptSignal

DescendantAdded ( Instance descendant )

Fires when a descendant is added to the `Instance`.
RBXScriptSignal

DescendantRemoving ( Instance descendant )

Fires immediately before a descendant of the `Instance` is removed.
RBXScriptSignal

Changed ( string property )

Fired immediately after a property of an object changes.