---
title: "Velocity"
description: "A two dimensional velocity in pixels per second."
type: "class"
---
Class
Common
```kotlin
value class Velocity internal constructor(private val packedValue: Long)
```
A two dimensional velocity in pixels per second.
## Properties
Common
```kotlin
val x: Float
```
The horizontal component of the velocity in pixels per second.
Common
```kotlin
val y: Float
```
The vertical component of the velocity in pixels per second.
## Functions
```kotlin
inline operator fun component1(): Float
```
The horizontal component of the velocity in pixels per second.
```kotlin
inline operator fun component2(): Float
```
The vertical component of the velocity in pixels per second.
```kotlin
fun copy(x: Float = unpackFloat1(packedValue), y: Float = unpackFloat2(packedValue)) =
Velocity(packFloats(x, y))
```
Returns a copy of this `Velocity` instance optionally overriding the x or y parameter
```kotlin
operator fun unaryMinus(): Velocity
```
Unary negation operator.
Returns a `Velocity` with the coordinates negated.
If the `Velocity` represents an arrow on a plane, this operator returns the same arrow but
pointing in the reverse direction.
```kotlin
operator fun minus(other: Velocity): Velocity
```
Binary subtraction operator.
Returns a `Velocity` whose `x` value is the left-hand-side operand's `x` minus the
right-hand-side operand's `x` and whose `y` value is the left-hand-side operand's `y` minus
the right-hand-side operand's `y`.
```kotlin
operator fun plus(other: Velocity): Velocity
```
Binary addition operator.
Returns a `Velocity` whose `x` value is the sum of the `x` values of the two operands, and
whose `y` value is the sum of the `y` values of the two operands.
```kotlin
operator fun times(operand: Float): Velocity
```
Multiplication operator.
Returns a `Velocity` whose coordinates are those of the left-hand-side operand (a `Velocity`)
multiplied by the scalar right-hand-side operand (a `Float`).
```kotlin
operator fun div(operand: Float): Velocity
```
Division operator.
Returns a `Velocity` whose coordinates are those of the left-hand-side operand (an
`Velocity`) divided by the scalar right-hand-side operand (a `Float`).
```kotlin
operator fun rem(operand: Float) =
Velocity(
packFloats(unpackFloat1(packedValue) % operand, unpackFloat2(packedValue) % operand)
)
```
Modulo (remainder) operator.
Returns a `Velocity` whose coordinates are the remainder of dividing the coordinates of the
left-hand-side operand (a `Velocity`) by the scalar right-hand-side operand (a `Float`).
## Companion Object
#### Properties
Common
```kotlin
val Zero = Velocity(0x0L)
```
An offset with zero magnitude.
This can be used to represent the origin of a coordinate space.