2019 Day 15 Complete

2019/day15/maze.go

@@ -29,8 +29,6 @@ type Maze struct {
 	dirHistory []int
 	dnt        bool
 
-	bfs map[*helpers.Coordinate]*BFSNode
-
 	startCoord *helpers.Coordinate
 	o2Coord    *helpers.Coordinate
 }
@@ -43,7 +41,6 @@ func NewMaze() *Maze {
 		maxY:       helpers.MIN_INT,
 		minY:       helpers.MAX_INT,
 		bot:        helpers.NewCoordinate(0, 0),
-		bfs:        make(map[*helpers.Coordinate]*BFSNode),
 		startCoord: helpers.NewCoordinate(0, 0),
 	}
 	m.path = append(m.path, helpers.NewCoordinate(0, 0))
@@ -51,29 +48,6 @@ func NewMaze() *Maze {
 }
 
 func (m *Maze) SetCoord(c *helpers.Coordinate, val int) {
-	var b *BFSNode
-	var ok bool
-	if b, ok = m.bfs[c]; !ok {
-		b = &BFSNode{Value: val}
-		m.bfs[c] = b
-	}
-	// Create the BFS node for this
-	if n, ok := m.bfs[c.GetNorthCoord()]; ok {
-		n.South = b
-		b.North = n
-	}
-	if e, ok := m.bfs[c.GetEastCoord()]; ok {
-		e.West = b
-		b.East = e
-	}
-	if s, ok := m.bfs[c.GetSouthCoord()]; ok {
-		s.North = b
-		b.South = s
-	}
-	if w, ok := m.bfs[c.GetWestCoord()]; ok {
-		w.East = b
-		b.West = w
-	}
 	if val == 2 {
 		m.o2Coord = c
 	}
@@ -170,26 +144,3 @@ func (m *Maze) Print() {
 		fmt.Println()
 	}
 }
-
-type BFSNode struct {
-	Value       int
-	North, East *BFSNode
-	South, West *BFSNode
-}
-
-func (b *BFSNode) getChildren() []*BFSNode {
-	var ret []*BFSNode
-	if b.North != nil {
-		ret = append(ret, b.North)
-	}
-	if b.East != nil {
-		ret = append(ret, b.East)
-	}
-	if b.South != nil {
-		ret = append(ret, b.South)
-	}
-	if b.West != nil {
-		ret = append(ret, b.West)
-	}
-	return ret
-}