2022 Day 14 Complete!

helpers/coordinate.go

@@ -18,6 +18,27 @@ func (c Coordinate) Relative(t Coordinate) Coordinate {
 	return Coordinate{X: c.X + t.X, Y: c.Y + t.Y}
 }
 
+func (c *Coordinate) MoveSouth() { c.Y++ }
+func (c *Coordinate) MoveNorth() { c.Y-- }
+func (c *Coordinate) MoveEast()  { c.X++ }
+func (c *Coordinate) MoveWest()  { c.X-- }
+func (c *Coordinate) MoveNE() {
+	c.X++
+	c.Y--
+}
+func (c *Coordinate) MoveSE() {
+	c.X++
+	c.Y++
+}
+func (c *Coordinate) MoveSW() {
+	c.X--
+	c.Y++
+}
+func (c *Coordinate) MoveNW() {
+	c.X--
+	c.Y--
+}
+
 func (c Coordinate) North() Coordinate {
 	return Coordinate{X: c.X, Y: c.Y - 1}
 }
@@ -75,6 +96,9 @@ func CoordinateFromString(str string) *Coordinate {
 	c := Coordinate{}
 	r := strings.NewReader(str)
 	_, err := fmt.Fscanf(r, "[%d, %d]", &c.X, &c.Y)
+	if err != nil {
+		_, err = fmt.Fscanf(r, "%d,%d", &c.X, &c.Y)
+	}
 	if err != nil {
 		panic(err)
 	}

helpers/coordinateByteMap.go

@@ -3,6 +3,7 @@ package aoc
 import (
 	"errors"
 	"fmt"
+	"math"
 )
 
 type CoordByteMap struct {
@@ -14,11 +15,20 @@ type CoordByteMap struct {
 	TLX, TLY int
 	// The Bottom-Right-most X/Y
 	BRX, BRY int
+
+	// Options for the 'String' method
+	StringEmptyIsSpace bool
+	StringEmptyByte    byte
 }
 
 func NewCoordByteMap() CoordByteMap {
 	return CoordByteMap{
-		Field: make(map[Coordinate]byte),
+		Field:           make(map[Coordinate]byte),
+		TLX:             math.MaxInt,
+		TLY:             math.MaxInt,
+		BRX:             math.MinInt,
+		BRY:             math.MinInt,
+		StringEmptyByte: ' ',
 	}
 }
 
@@ -196,6 +206,9 @@ func (m *CoordByteMap) Put(pos Coordinate, val byte) {
 		m.Height = m.BRY - m.TLY + 1
 	}
 }
+func (m *CoordByteMap) Delete(pos Coordinate) {
+	delete(m.Field, pos)
+}
 
 func (m *CoordByteMap) GrowNorth(size int, val byte) {
 	tlY := m.TLY - 1
@@ -249,7 +262,11 @@ func (m CoordByteMap) String() string {
 	var ret string
 	for y := m.TLY; y <= m.BRY; y++ {
 		for x := m.TLX; x <= m.BRX; x++ {
-			ret = ret + string(m.Field[Coordinate{X: x, Y: y}])
+			if m.StringEmptyIsSpace {
+				ret = ret + string(m.Opt(Coordinate{X: x, Y: y}, m.StringEmptyByte))
+			} else {
+				ret = ret + string(m.Field[Coordinate{X: x, Y: y}])
+			}
 		}
 		ret = ret + "\n"
 	}