2023 Day 11 Complete!

Added a todo file to track changes to my helpers that need
to be propagated through previous days/years

helpers/coordinateByteMap.go

@@ -7,9 +7,7 @@ import (
 )
 
 type CoordByteMap struct {
-	Field  map[Coordinate]byte
-	Height int
-	Width  int
+	Field map[Coordinate]byte
 
 	// The Top-Left-most X/Y
 	TLX, TLY int
@@ -34,8 +32,7 @@ func NewCoordByteMap() CoordByteMap {
 
 func StringSliceToCoordByteMap(input []string) CoordByteMap {
 	ret := CoordByteMap{
-		Field:  make(map[Coordinate]byte),
-		Height: len(input),
+		Field: make(map[Coordinate]byte),
 	}
 	for y := range input {
 		for x := range input[y] {
@@ -45,6 +42,13 @@ func StringSliceToCoordByteMap(input []string) CoordByteMap {
 	return ret
 }
 
+func (m *CoordByteMap) Height() int {
+	return m.BRY - m.TLY
+}
+func (m *CoordByteMap) Width() int {
+	return m.BRX - m.TLX
+}
+
 func (m *CoordByteMap) ToByteSlices() [][]byte {
 	var ret [][]byte
 	for y := m.TLY; y <= m.BRY; y++ {
@@ -63,6 +67,54 @@ func (m *CoordByteMap) ContainsCoord(c Coordinate) bool {
 		c.Y >= m.TLY && c.Y <= m.BRY
 }
 
+// RowContains searches a row for a byte
+func (m *CoordByteMap) RowContains(row int, b byte) bool {
+	for x := m.TLX; x <= m.BRX; x++ {
+		if m.Get(Coordinate{X: x, Y: row}) == b {
+			return true
+		}
+	}
+	return false
+}
+
+// ColContains searches a column for a byte
+func (m *CoordByteMap) ColContains(col int, b byte) bool {
+	for y := m.TLY; y <= m.BRY; y++ {
+		if m.Get(Coordinate{X: col, Y: y}) == b {
+			return true
+		}
+	}
+	return false
+}
+
+// InsertRowAfter grows the map south, moves all rows after 'row' south
+// Then fills the 'row'th row with 'fill'
+func (m *CoordByteMap) InsertRowAfter(row int, fill byte) {
+	m.GrowSouth(1, fill)
+	for y := m.BRY; y > row; y-- {
+		for x := m.TLX; x <= m.BRX; x++ {
+			m.Put(Coordinate{X: x, Y: y}, m.Get(Coordinate{X: x, Y: y - 1}))
+		}
+	}
+	for x := m.TLX; x <= m.BRX; x++ {
+		m.Put(Coordinate{X: x, Y: row}, fill)
+	}
+}
+
+// InsertColAfter grows the map East, moves all cols after 'col' east
+// Then fills the 'col'th column with 'fill'
+func (m *CoordByteMap) InsertColAfter(col int, fill byte) {
+	m.GrowEast(1, fill)
+	for x := m.BRX; x > col; x-- {
+		for y := m.TLY; y <= m.BRY; y++ {
+			m.Put(Coordinate{X: x, Y: y}, m.Get(Coordinate{X: x - 1, Y: y}))
+		}
+	}
+	for y := m.TLY; y <= m.BRY; y++ {
+		m.Put(Coordinate{X: col, Y: y}, fill)
+	}
+}
+
 // FindFirst searches left to right, top to bottom for the first
 // instance of b.
 func (m *CoordByteMap) FindFirst(b byte) (Coordinate, error) {
@@ -199,12 +251,6 @@ func (m *CoordByteMap) Put(pos Coordinate, val byte) {
 		m.BRY = pos.Y
 	}
 	m.Field[pos] = val
-	if pos.X+1 > m.Width {
-		m.Width = m.BRX - m.TLX + 1
-	}
-	if pos.Y+1 > m.Height {
-		m.Height = m.BRY - m.TLY + 1
-	}
 }
 func (m *CoordByteMap) Delete(pos Coordinate) {
 	delete(m.Field, pos)

helpers/helpers.go

@@ -23,6 +23,7 @@ const (
 
 	FILL_CHAR    = "\u2588"
 	CLEAR_SCREEN = "\033[H\033[2J"
+	CLEAR_LINE   = "\033[1K"
 
 	MAX_INT = int(^uint(0) >> 1)
 	MIN_INT = -MAX_INT - 1