conditional.go

// ScoreAtConditional uses a series of conditional checks to determine what a
// particular square's score multiplier is.
func ScoreAtConditional(x, y int) ScoreType {
	// Symmetric adjustments if x or y > 7 to simplify checks below.
	if x > 7 {
		x = 14 - x
	}

	if y > 7 {
		y = 14 - y
	}

	if x == y {
		if x == 0 {
			return TW
		}
		if x > 0 && x < 5 {
			return DW
		}
		if x == 5 {
			return TL
		}
		if x == 6 {
			return DL
		}
		if x == 7 {
			return DW
		}
	}
  
	symCheck := func(a, b int) bool {
		return x == a && y == b || x == b && y == a
	}

	switch {
	case symCheck(0, 3) || symCheck(2, 6) || symCheck(3, 7):
		return DL
	case symCheck(0, 7):
		return TW
	case symCheck(1, 5):
		return TL
	case symCheck(3, 7):
		return DW
	}
	return None
}