p.go

type Point struct {
	GasPriceX  *big.Int
	EthProfitY *big.Int
}

func (b *Bot) MaxProfitPossible(p1, p2 Point) *big.Int {
	rise := new(big.Int).Sub(p2.EthProfitY, p1.EthProfitY)
	run := new(big.Int).Sub(p2.GasPriceX, p1.GasPriceX)
	slope := new(big.Float).Quo(
		new(big.Float).SetInt(rise),
		new(big.Float).SetInt(run),
	)
	intercept := new(big.Float).Sub(
		new(big.Float).SetInt(p2.EthProfitY),
		new(big.Float).Mul(slope,
			new(big.Float).SetInt(p2.GasPriceX)),
	)
	intercept.Mul(intercept, big.NewFloat(-1))
	reciprocoal := new(big.Float).Quo(
		new(big.Float).SetInt(run),
		new(big.Float).SetInt(rise),
	)

	thing := new(big.Float).Mul(intercept, reciprocoal)
	result := new(big.Int)
	thing.Int(result)
	return result
}