package main

import "math"

func maxInt(a, b int) int {
	if a > b {
		return a
	}
	return b
}

func minInt(a, b int) int {
	if a < b {
		return a
	}
	return b
}

func minNonZeroInt(a, b int) int {
	switch {
	case a == 0:
		return b
	case b == 0:
		return a
	}

	return minInt(a, b)
}

func roundToInt(a float64) int {
	return int(math.Round(a))
}

func scaleInt(a int, scale float64) int {
	if a == 0 {
		return 0
	}

	return roundToInt(float64(a) * scale)
}