Members

static DEG_TO_RAD :Number

constant to convert from degrees to radians

static EPSILON :Number

the difference between 1 and the smallest floating point number greater than 1

static ETA :Number

constant equals to half pi

static RAD_TO_DEG :Number

constant to convert from radians to degrees

static TAU :Number

constant equals to 2 times pi

Methods

static clamp(val, low, high) → {number}

clamp the given value

Parameters:

Name	Type	Description
val	number	the value to clamp
low	number	lower limit
high	number	higher limit

Returns:

number -

clamped value

static degToRad(angle) → {number}

Converts an angle in degrees to an angle in radians

Parameters:

Name	Type	Description
angle	number	angle in degrees

Returns:

number -

corresponding angle in radians

Example

// convert a specific angle
me.Math.degToRad(60); // return 1.0471...

static isPowerOfTwo(val) → {boolean}

returns true if the given value is a power of two

Parameters:

Name	Type	Description
val	Number

Returns:

boolean

static nextPowerOfTwo(val) → {boolean}

returns the next power of two for the given value

Parameters:

Name	Type	Description
val	Number

Returns:

boolean

static radToDeg(radians) → {number}

Converts an angle in radians to an angle in degrees.

Parameters:

Name	Type	Description
radians	number	angle in radians

Returns:

number -

corresponding angle in degrees

Example

// convert a specific angle
me.Math.radToDeg(1.0471975511965976); // return 60

static random(min, max) → {number}

return a random integer between min (included) and max (excluded)

Parameters:

Name	Type	Description
min	number	minimum value.
max	number	maximum value.

Returns:

number -

random value

Example

// Print a random number; one of 5, 6, 7, 8, 9
console.log(me.Math.random(5, 10) );

static randomFloat(min, max) → {number}

return a random float between min, max (exclusive)

Parameters:

Name	Type	Description
min	number	minimum value.
max	number	maximum value.

Returns:

number -

random value

Example

// Print a random number; one of 5, 6, 7, 8, 9
console.log(me.Math.randomFloat(5, 10) );

static round(num, decopt) → {number}

round a value to the specified number of digit

Parameters:

Name	Type	Attributes	Default	Description
num	number			value to be rounded.
dec	number	<optional>	0	number of decimal digit to be rounded to.

Returns:

number -

rounded value

Example

// round a specific value to 2 digits
me.Math.round(10.33333, 2); // return 10.33

static toBeCloseTo(expected, actual, precisionopt) → {boolean}

check if the given value is close to the expected one

Parameters:

Name	Type	Attributes	Default	Description
expected	number			value to be compared with.
actual	number			actual value to compare
precision	number	<optional>	2	float precision for the comparison

Returns:

boolean -

if close to

Example

// test if the given value is close to 10
if (me.Math.toBeCloseTo(10, value)) {
    // do something
}

static weightedRandom(min, max) → {number}

return a weighted random between min, max (exclusive)

Parameters:

Name	Type	Description
min	number	minimum value.
max	number	maximum value.

Returns:

number -

random value

Example

// Print a random number; one of 5, 6, 7, 8, 9
console.log(me.Math.weightedRandom(5, 10) );