# ParticleEmitter（ロブロックス クラス）

> 煙・火花・キラキラなどの粒子（パーティクル）を出し続ける演出の部品です。パーツやアタッチメントの中に入れて使います。

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

## プロパティ

- `ParticleEmitter.Acceleration: Vector3`：Determines the global-axis acceleration of all active particles, measured in studs per second squared.
- `ParticleEmitter.Brightness: float`：Scales the light emitted from the emitter when ParticleEmitter.LightInfluence is 0.
- `ParticleEmitter.Color: ColorSequence`：Determines the color of all active particles over their individual lifetimes.
- `ParticleEmitter.Drag: float`：Determines the rate at which particles will lose half their speed through exponential decay.
- `ParticleEmitter.EmissionDirection: NormalId`：Determines the face of the object that particles emit from.
- `ParticleEmitter.Enabled: boolean`：falseにすると粒子が出なくなります。
- `ParticleEmitter.FlipbookBlendFrames: boolean`：Determines whether the flipbook frames are blended between.
- `ParticleEmitter.FlipbookFramerate: NumberRange`：Determines how fast the flipbook texture animates in frames per second.
- `ParticleEmitter.FlipbookIncompatible: string`：The error message to display if the Class.ParticleEmitter.Texture|Texture is incompatible for a flipbook.
- `ParticleEmitter.FlipbookLayout: ParticleFlipbookLayout`：Determines the layout of the flipbook texture. Must be None, Grid2x2, Grid4x4, Grid8x8 or Custom.
- `ParticleEmitter.FlipbookMode: ParticleFlipbookMode`：Determines the type of the flipbook animation. Must be Loop, OneShot, PingPong, or Random.
- `ParticleEmitter.FlipbookSizeX: int`：Defines the number of horizontal frames in a custom flipbook layout.
- `ParticleEmitter.FlipbookSizeY: int`：Defines the number of vertical frames in a custom flipbook layout.
- `ParticleEmitter.FlipbookStartRandom: boolean`：Determines whether the animation starts at a random frame chosen per particle instead of always starting at frame zero.
- `ParticleEmitter.Lifetime: NumberRange`：粒子が消えるまでの時間。
- `ParticleEmitter.LightEmission: float`：Determines how much particles' colors are blended with the colors behind them.
- `ParticleEmitter.LightInfluence: float`：Determines how much particles are influenced by the environmental light.
- `ParticleEmitter.LockedToPart: boolean`：Determines whether the particles rigidly move with the part they're being emitted from.
- `ParticleEmitter.Orientation: ParticleOrientation`：Specifies how to orient particles.
- `ParticleEmitter.Rate: float`：1秒間に出す粒子の数。
- `ParticleEmitter.Rotation: NumberRange`：Determines the range of rotations in degrees for newly emitted particles.
- `ParticleEmitter.RotSpeed: NumberRange`：Determines the range of angular speeds of emitted particles, measured in degrees per second.
- `ParticleEmitter.Shape: ParticleEmitterShape`：Sets the shape of the emitter to either a box, sphere, cylinder, or disc.
- `ParticleEmitter.ShapeInOut: ParticleEmitterShapeInOut`：Sets whether particles emit outward only, inward only, or in both directions.
- `ParticleEmitter.ShapePartial: float`：Influences particle emission from cylinder, disc, sphere, and box shapes.
- `ParticleEmitter.ShapeStyle: ParticleEmitterShapeStyle`：Sets particle emission to either volumetric or surface-only emission.
- `ParticleEmitter.Size: NumberSequence`：Determines the world size over individual particles' lifetimes.
- `ParticleEmitter.Speed: NumberRange`：Determines a random range of velocities (minimum to maximum) at which new particles will emit, measured in studs per second.
- `ParticleEmitter.SpreadAngle: Vector2`：Determines the angles at which particles may be randomly emit, measured in degrees.
- `ParticleEmitter.Squash: NumberSequence`：Allows for non-uniform scaling of particles, curve-controlled over their lifetime.
- `ParticleEmitter.Texture: ContentId`：Determines the image rendered on particles.
- `ParticleEmitter.TextureContent: Content`：The image rendered on particles. Supports asset URIs.
- `ParticleEmitter.TimeScale: float`：Value between 0 and 1 that controls the speed of the particle effect.
- `ParticleEmitter.Transparency: NumberSequence`：Determines the transparency of particles over their individual lifetimes.
- `ParticleEmitter.VelocityInheritance: float`：Determines how much of the parent's velocity is inherited by particles when emitted.
- `ParticleEmitter.WindAffectsDrag: boolean`：Whether emitted particles follow the Workspace.GlobalWind vector.
- `ParticleEmitter.ZOffset: float`：Determines the forward-backward render position of particles; used to control what particles render on top/bottom.

## メソッド

- `ParticleEmitter:Clear(): ()`：Clears all particles that have been emitted.
- `ParticleEmitter:Emit(particleCount: int): ()`：指定した数の粒子を一度に出します。

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/）