Crafty.math.abs

public this Crafty.math.abs(Number n)

n

Some value.

Returns

Absolute value.

Returns the absolute value.

Crafty.math.amountOf

public Number Crafty.math.amountOf(Number checkValue, Number minValue, Number maxValue)

checkValue

Value that should checked with minimum and maximum.

minValue

Minimum value to check.

maxValue

Maximum value to check.

Returns

Amount of checkValue compared to minValue and maxValue.

Returns the amount of how much a checkValue is more like minValue (=0) or more like maxValue (=1)

Converts angle from degree to radian.

angleInDeg

The angle in degree.

Returns

The angle in radian.

Converts angle from degree to radian.

angleInDeg

The angle in degree.

Returns

The angle in radian.

Crafty.math.distance

public Number Crafty.math.distance(Number x1, Number y1, Number x2, Number y2)

x1

First x coordinate.

y1

First y coordinate.

x2

Second x coordinate.

y2

Second y coordinate.

Returns

The distance between the two points.

Distance between two points.

Crafty.math.lerp

public Number Crafty.math.lerp(Number value1, Number value2, Number amount)

value1

One value.

value2

Another value.

amount

Amount of value2 to value1.

Returns

Linear interpolated value.

Linear interpolation. Passing amount with a value of 0 will cause value1 to be returned, a value of 1 will cause value2 to be returned.

Crafty.math.negate

public Number Crafty.math.negate(Number percent)

percent

If you pass 1 a -1 will be returned. If you pass 0 a 1 will be returned.

Returns

1 or -1.

Returnes "randomly" -1.

Crafty.math.radToDeg

public Number Crafty.math.radToDeg(Number angle)

angleInRad

The angle in radian.

Returns

The angle in degree.

Converts angle from radian to degree.

Crafty.math.randomElementOfArray

public Object Crafty.math.randomElementOfArray(Array array)

array

A specific array.

Returns

A random element of a specific array.

Returns a random element of a specific array.

Crafty.math.randomInt

public Number Crafty.math.randomInt(Number start, Number end)

start

Smallest int value that can be returned.

end

Biggest int value that can be returned.

Returns

A random int.

Returns a random int in within a specific range.

Crafty.math.randomNumber

public Number Crafty.math.randomInt(Number start, Number end)

start

Smallest number value that can be returned.

end

Biggest number value that can be returned.

Returns

A random number.

Returns a random number in within a specific range.

Crafty.math.squaredDistance

public Number Crafty.math.squaredDistance(Number x1, Number y1, Number x2, Number y2)

x1

First x coordinate.

y1

First y coordinate.

x2

Second x coordinate.

y2

Second y coordinate.

Returns

The squared distance between the two points.

Squared distance between two points.

Crafty.math.withinRange

public Boolean Crafty.math.withinRange(Number value, Number min, Number max)

value

The specific value.

min

Minimum value.

max

Maximum value.

Returns

Returns true if value is within a specific range.

Check if a value is within a specific range.