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Class MathHelper

Hierarchy

  • MathHelper

Index

Properties

Methods

Properties

Static Readonly Deg2Rad

Deg2Rad: 0.0174532924 = 0.0174532924

Static Readonly Epsilon

Epsilon: number = 0.00001

Static Readonly PiOver2

PiOver2: number = Math.PI / 2

表示pi除以2的值(1.57079637)

Static Readonly Rad2Deg

Rad2Deg: 57.29578 = 57.29578

Methods

Static angleBetweenVectors

Static approach

  • approach(start: number, end: number, shift: number): number

  • 由上移量向上移。start可以小于或大于end。例如:开始是2，结束是10，移位是4，结果是6

    Parameters

    • start: number
    • end: number
    • shift: number

    Returns number

Static clamp

  • clamp(value: number, min: number, max: number): number

Static clamp01

  • clamp01(value: number): number

Static incrementWithWrap

  • incrementWithWrap(t: number, length: number): number

  • 增加t并确保它总是大于或等于0并且小于长度

    Parameters

    • t: number
    • length: number

    Returns number

Static isEven

  • isEven(value: number): boolean

Static lerp

  • lerp(value1: number, value2: number, amount: number): number

Static map

  • map(value: number, leftMin: number, leftMax: number, rightMin: number, rightMax: number): number

  • mapps值(在leftMin - leftMax范围内)到rightMin - rightMax范围内的值

    Parameters

    • value: number
    • leftMin: number
    • leftMax: number
    • rightMin: number
    • rightMax: number

    Returns number

Static pointOnCirlce

  • pointOnCirlce(circleCenter: Vector2, radius: number, angleInDegrees: number): Vector2

  • 给定圆心、半径和角度，得到圆周上的一个点。0度是3点钟。

    Parameters

    • circleCenter: Vector2
    • radius: number
    • angleInDegrees: number

    Returns Vector2

Static toDegrees

  • toDegrees(radians: number): number

  • 将弧度转换成角度。

    Parameters

    • radians: number

      用弧度表示的角

    Returns number

Static toRadians

  • toRadians(degrees: number): number

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