package strategies

import (
	"botg/models"
	"math"
)

type StarAffiliation int

const (
	Own    StarAffiliation = 0
	Friend StarAffiliation = 1
	Enemy  StarAffiliation = 2
)

func calculateDistanceCeiling(source *models.Star, target *models.Star) int {
	squareDist := (source.X - target.X) * (source.X - target.X) + int(source.Y - target.Y) * (source.Y - target.Y)

	lb := 1
	ub := 300 * 2
	for lb < ub {
		mb := (lb + ub) / 2
		if int(mb*mb) >= squareDist {
			ub = mb
		} else {
			lb = mb + 1
		}
	}

	return lb
}

func flightTurnDistance(source, target *models.Star) int {
	if source.Idx == target.Idx {
		return 0
	}

	return int(math.Ceil(float64(calculateDistanceCeiling(source, target)) / 10.0))
}