int.go

package gomath

// MaxInt takes in two or more integers and returns
// the maximum of them
func MaxInt(a int, rem ...int) int {
	res := a
	for _, v := range rem {
		if v > res {
			res = v
		}
	}
	return res
}

// MinInt takes in two or more integers and returns
// the maximum of them
func MinInt(a int, rem ...int) int {
	res := a
	for _, v := range rem {
		if v < res {
			res = v
		}
	}
	return res
}

// AbsInt takes an integer and returns its absolute
// value
func AbsInt(a int) int {
	return MaxInt(a, -a)
}

// ClampInt will clamp a given value between a low and
// high value inclusively.
func ClampInt(low, high, val int) (result int) {
	if val < low {
		result = low
	} else if val > high {
		result = high
	} else {
		result = val
	}
	return
}

// ScaleInt will scale a number from the old range
// to the new range
func ScaleInt(low, high, oldLow, oldHigh, value int) int {
	return low + (high-low)*((value-oldLow)/(oldHigh-oldLow))
}