Class FixedVector2

constructor

• new FixedVector2(x?: number | Fixed, y?: number | Fixed): FixedVector2

  Create a new 2D fixed-point vector 创建新的2D定点向量

  Parameters

  • x: number | Fixed = 0

    X component (can be Fixed or number)
  • y: number | Fixed = 0

    Y component (can be Fixed or number)

  Returns FixedVector2

x

y

Static ReadonlyDOWN

Static ReadonlyLEFT

Static ReadonlyONE

Static ReadonlyRIGHT

Static ReadonlyUP

Static ReadonlyZERO

abs

• abs(): FixedVector2

  Get the absolute values of components 获取分量的绝对值

  Returns FixedVector2

add

• add(other: FixedVector2): FixedVector2

  Add two vectors 两个向量相加

  Parameters

  • other: FixedVector2

  Returns FixedVector2

addInPlace

• addInPlace(other: FixedVector2): FixedVector2

  Add in place (modifies this instance for better performance) 就地相加（修改当前实例以提高性能）

  Parameters

  • other: FixedVector2

  Returns FixedVector2

angle

• angle(): Fixed

  Get the angle of this vector from the positive X axis 获取此向量相对于正X轴的角度

  Returns Fixed

clone

• clone(): FixedVector2

  Create a copy of this vector 创建此向量的副本

  Returns FixedVector2

cross

• cross(other: FixedVector2): Fixed

  Calculate cross product with another vector (returns scalar for 2D) 计算与另一个向量的叉积（2D返回标量）

  Parameters

  • other: FixedVector2

  Returns Fixed

distance

• distance(other: FixedVector2): Fixed

  Calculate distance to another vector 计算到另一个向量的距离

  Parameters

  • other: FixedVector2

  Returns Fixed

divide

• divide(scalar: number | Fixed): FixedVector2

  Divide vector by a scalar 向量除以标量

  Parameters

  • scalar: number | Fixed

  Returns FixedVector2

divideInPlace

• divideInPlace(scalar: number | Fixed): FixedVector2

  Divide in place (modifies this instance for better performance) 就地相除（修改当前实例以提高性能）

  Parameters

  • scalar: number | Fixed

  Returns FixedVector2

dot

• dot(other: FixedVector2): Fixed

  Calculate dot product with another vector 计算与另一个向量的点积

  Parameters

  • other: FixedVector2

  Returns Fixed

equals

• equals(other: FixedVector2): boolean

  Check equality with another vector 检查与另一个向量是否相等

  Parameters

  • other: FixedVector2

  Returns boolean

magnitude

• magnitude(): Fixed

  Calculate the magnitude (length) of the vector 计算向量的大小（长度）

  Returns Fixed

multiply

• multiply(scalar: number | Fixed): FixedVector2

  Multiply vector by a scalar 向量乘以标量

  Parameters

  • scalar: number | Fixed

  Returns FixedVector2

multiplyInPlace

• multiplyInPlace(scalar: number | Fixed): FixedVector2

  Multiply in place (modifies this instance for better performance) 就地相乘（修改当前实例以提高性能）

  Parameters

  • scalar: number | Fixed

  Returns FixedVector2

negate

• negate(): FixedVector2

  Negate the vector 取向量的负值

  Returns FixedVector2

normalize

• normalize(): FixedVector2

  Normalize the vector (make it unit length) 归一化向量（使其长度为1）

  Returns FixedVector2

perpendicular

• perpendicular(): FixedVector2

  Get a vector perpendicular to this one (rotated 90 degrees counter-clockwise) 获取垂直于此向量的向量（逆时针旋转90度）

  Returns FixedVector2

perpendicularRight

• perpendicularRight(): FixedVector2

  Get the right perpendicular vector (rotated 90 degrees clockwise) 获取右垂直向量（顺时针旋转90度）

  Returns FixedVector2

project

• project(onto: FixedVector2): FixedVector2

  Project this vector onto another vector 将此向量投影到另一个向量上

  Parameters

  • onto: FixedVector2

    The vector to project onto

  Returns FixedVector2

  The projected vector

reflect

• reflect(normal: FixedVector2): FixedVector2

  Reflect this vector across a normal vector 沿法向量反射此向量

  Parameters

  • normal: FixedVector2

    The normal vector to reflect across (should be normalized)

  Returns FixedVector2

  The reflected vector

reject

• reject(onto: FixedVector2): FixedVector2

  Get the component of this vector perpendicular to another vector 获取此向量垂直于另一个向量的分量

  Parameters

  • onto: FixedVector2

    The vector to get the perpendicular component relative to

  Returns FixedVector2

  The perpendicular component

reset

• reset(): FixedVector2

  Reset this vector to zero (for object pooling) 将此向量重置为零（用于对象池）

  Returns FixedVector2

rotate

• rotate(angle: number | Fixed): FixedVector2

  Rotate this vector by the given angle in radians 将此向量按给定角度（弧度）旋转

  Parameters

  • angle: number | Fixed

    Angle in radians

  Returns FixedVector2

  The rotated vector

set

• set(x: number | Fixed, y: number | Fixed): FixedVector2

  Set this vector's components from coordinates (for reusing objects) 从坐标设置此向量的分量（用于重用对象）

  Parameters

  • x: number | Fixed
  • y: number | Fixed

  Returns FixedVector2

setFrom

• setFrom(other: FixedVector2): FixedVector2

  Set this vector's components from another vector (for reusing objects) 从另一个向量设置此向量的分量（用于重用对象）

  Parameters

  • other: FixedVector2

  Returns FixedVector2

sqrDistance

• sqrDistance(other: FixedVector2): Fixed

  Calculate squared distance to another vector (more efficient) 计算到另一个向量的平方距离（更高效）

  Parameters

  • other: FixedVector2

  Returns Fixed

sqrMagnitude

• sqrMagnitude(): Fixed

  Calculate the squared magnitude (more efficient than magnitude) 计算平方大小（比magnitude更高效）

  Returns Fixed

subtract

• subtract(other: FixedVector2): FixedVector2

  Subtract two vectors 两个向量相减

  Parameters

  • other: FixedVector2

  Returns FixedVector2

subtractInPlace

• subtractInPlace(other: FixedVector2): FixedVector2

  Subtract in place (modifies this instance for better performance) 就地相减（修改当前实例以提高性能）

  Parameters

  • other: FixedVector2

  Returns FixedVector2

toArray

• toArray(): [number, number]

  Convert to array [x, y] 转换为数组 [x, y]

  Returns [number, number]

toString

• toString(): string

  Convert to string representation 转换为字符串表示

  Returns string

Staticangle

• angle(a: FixedVector2, b: FixedVector2): Fixed

  Calculate angle between two vectors in radians using deterministic math 使用确定性数学计算两个向量之间的角度（弧度）

  Parameters

  • a: FixedVector2
  • b: FixedVector2

  Returns Fixed

StaticfromAngle

• fromAngle(angle: Fixed, magnitude?: Fixed): FixedVector2

  Create a vector from angle and magnitude 从角度和大小创建向量

  Parameters

  • angle: Fixed
  • magnitude: Fixed = Fixed.ONE

  Returns FixedVector2

Staticlerp

• lerp(a: FixedVector2, b: FixedVector2, t: number | Fixed): FixedVector2

  Linear interpolation between two vectors 两个向量之间的线性插值

  Parameters

  • a: FixedVector2
  • b: FixedVector2
  • t: number | Fixed

  Returns FixedVector2