Hand-written by Joseph San Nicolas, Roblox Developer

NumberSequenceKeypoint

Constructors

Name	Description
new(time: number, value: number)	Creates a keypoint at the given time with the given value. Envelope defaults to 0, meaning no random variance.
new(time: number, value: number, envelope: number)	Creates a keypoint at the given time with the given value and envelope. envelope must be a non-negative number and defines the amount of random variance applied to value at runtime.

Code Snippet

local emitter = Instance.new("ParticleEmitter")
emitter.Size = NumberSequence.new({
    NumberSequenceKeypoint.new(0, 0),
    NumberSequenceKeypoint.new(0.5, 2, 0.5),
    NumberSequenceKeypoint.new(1, 0)
})
emitter.Parent = workspace.Part

Properties

Name	Type	Description
Time	number	The relative time at which this keypoint is positioned within the parent NumberSequence, expressed as a number from 0 to 1. The first keypoint must be 0 and the last must be 1.
Value	number	The base numeric value at this keypoint's position in the sequence. The engine interpolates linearly between adjacent keypoint values based on time.
Envelope	number	The amount of variance allowed from the value. Commonly used to randomize things like particle sizes within a range.