Class b2Vec2

constructor

• new b2Vec2(x?: number, y?: number): b2Vec2

• Creates a new vector 2.

  Parameters

  • Optionalx: number

    x value, default = 0.
  • Optionaly: number

    y value, default = 0.

  Returns b2Vec2

x

y

Abs

• Abs(): void

• Sets x and y to absolute values.

  Returns void

Add

• Add(v: b2Vec2): void

• Adds the vector 2 to this vector 2. The result is stored in this vector 2.

  Parameters

  • v: b2Vec2

    Vector 2 to add.

  Returns void

Copy

• Copy(): b2Vec2

• Creates a copy of the vector 2.

  Returns b2Vec2

  Copy of this vector 2.

CrossFV

• CrossFV(s: number): void

• Cross F V

  Parameters

  • s: number

  Returns void

CrossVF

• CrossVF(s: number): void

• Cross V F

  Parameters

  • s: number

  Returns void

GetNegative

• GetNegative(): b2Vec2

• Gets the negative of this vector 2.

  Returns b2Vec2

  Negative copy of this vector 2.

IsValid

• IsValid(): boolean

• True if the vector 2 is valid, otherwise false. A valid vector has finite values.

  Returns boolean

  True if the vector 2 is valid, otherwise false.

Length

• Length(): number

• Calculates the length of the vector 2.

  Returns number

  The length of the vector 2.

LengthSquared

• LengthSquared(): number

• Calculates the length squared of the vector2.

  Returns number

  The length squared of the vector 2.

MaxV

• MaxV(b: b2Vec2): void

• Calculates which vector has the maximum values and sets this vector to those values.

  Parameters

  • b: b2Vec2

    Vector 2 to compare for maximum values.

  Returns void

MinV

• MinV(b: b2Vec2): void

• Calculates which vector has the minimum values and sets this vector to those values.

  Parameters

  • b: b2Vec2

    Vector 2 to compare for minimum values.

  Returns void

MulM

• MulM(A: b2Mat22): void

• Matrix multiplication. Stores the result in this vector 2.

  Parameters

  • A: b2Mat22

    Matrix to muliply by.

  Returns void

Multiply

• Multiply(a: number): void

• Vector multiplication. Stores the result in this vector 2.

  Parameters

  • a: number

    Value to multiple the vector's values by.

  Returns void

MulTM

• MulTM(A: b2Mat22): void

• Dot product multiplication. Stores the result in this vector 2.

  Parameters

  • A: b2Mat22

    Matrix to multiply by.

  Returns void

NegativeSelf

• NegativeSelf(): void

• Sets this vector 2 to its negative.

  Returns void

Normalize

• Normalize(): number

• Normalizes the vector 2 [0,1].

  Returns number

  Length.

Set

• Set(x?: number, y?: number): void

• Sets the vector 2.

  Parameters

  • Optionalx: number

    x value, default is 0.
  • Optionaly: number

    y value, default is 0.

  Returns void

SetV

• SetV(v: b2Vec2): void

• Sets the vector 2 from a vector 2.

  Parameters

  • v: b2Vec2

    Vector 2 to copy values from.

  Returns void

SetZero

• SetZero(): void

• Sets the vector 2 to zero values.

  Returns void

Subtract

• Subtract(v: b2Vec2): void

• Subtracts the vector 2 from this vector 2. The result is stored in this vector 2.

  Parameters

  • v: b2Vec2

    Vector 2 to subtract.

  Returns void

StaticMake

• Make(x: number, y: number): b2Vec2

• Creates a new vector 2 from the given values.

  Parameters

  • x: number

    x value.
  • y: number

    y value.

  Returns b2Vec2