Trying to finish up 2019
This commit is contained in:
125
2019/day20/input
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125
2019/day20/input
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X H D Z O K W
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N O W Z S L F
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J A O Q N Q S D
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O A A T Z O U A
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94
2019/day20/main.go
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94
2019/day20/main.go
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@@ -0,0 +1,94 @@
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package main
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import (
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"bufio"
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"fmt"
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"os"
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"time"
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helpers "git.bullercodeworks.com/brian/adventofcode/helpers"
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)
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var maze *Maze
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func main() {
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file := "input"
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var manual bool
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if helpers.GetArgNumber(1) != "" {
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file = helpers.GetArgNumber(1)
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}
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if helpers.GetArgNumber(2) == "manual" {
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manual = true
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}
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maze = NewMaze(file)
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if manual {
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runmanual(maze)
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}
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part1()
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//part2(inp)
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}
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func part1() {
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maze.GetStart().steps = 0
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ProcessNode(maze.GetStart(), 0)
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fmt.Println("Distance:", maze.GetEnd().steps)
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}
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func ProcessNode(m *MazeCoord, steps int) {
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fmt.Println("Processing Node", m)
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if maze.IsEnd(m.X, m.Y) {
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fmt.Println(" End")
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return
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}
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for _, neighbor := range []*MazeCoord{m.N, m.E, m.S, m.W} {
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if neighbor == nil {
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continue
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}
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if m.steps+1 < neighbor.steps {
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neighbor.steps = m.steps + 1
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if !neighbor.visited {
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ProcessNode(neighbor, m.steps+1)
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}
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}
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}
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m.visited = true
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}
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func runmanual(m *Maze) {
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var err error
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var inp string
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m.Print()
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for {
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reader := bufio.NewReader(os.Stdin)
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inp, err = reader.ReadString('\n')
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if err != nil {
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fmt.Println("Input Error:", err.Error())
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continue
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}
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var valid bool
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switch inp[0] {
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case 'N', 'n':
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valid = m.MoveNorth()
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case 'E', 'e':
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valid = m.MoveEast()
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case 'S', 's':
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valid = m.MoveSouth()
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case 'W', 'w':
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valid = m.MoveWest()
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case 'Q', 'q':
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fmt.Println("Quitting")
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break
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}
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fmt.Println(helpers.CLEAR_SCREEN)
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m.Print()
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if m.IsDone() {
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fmt.Println("DONE!")
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break
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}
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if !valid {
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fmt.Println("Invalid Move")
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}
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time.Sleep(time.Second / 2)
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}
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}
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228
2019/day20/maze.go
Normal file
228
2019/day20/maze.go
Normal file
@@ -0,0 +1,228 @@
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package main
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import (
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"bytes"
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"fmt"
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helpers "git.bullercodeworks.com/brian/adventofcode/helpers"
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)
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type Maze struct {
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start *MazeCoord
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end *MazeCoord
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maze map[string]*MazeCoord
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portals map[string]*Portal
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current *MazeCoord
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BotX, BotY int
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TopX, TopY int
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}
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func NewMaze(file string) *Maze {
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inp := helpers.FileToBytes(file)
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lines := bytes.Split(inp, []byte{'\n'})
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m := Maze{
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maze: make(map[string]*MazeCoord),
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portals: make(map[string]*Portal),
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}
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for yk, yv := range lines {
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for xk, xv := range yv {
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if xv == '.' || xv == '#' {
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m.maze[c(xk, yk)] = &MazeCoord{
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X: xk,
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Y: yk,
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Value: xv,
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steps: helpers.MAX_INT,
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}
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}
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}
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}
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// Now hook up neighbor coords
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for _, v := range m.maze {
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if v.X < m.BotX {
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m.BotX = v.X
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||||
}
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if v.X > m.TopX {
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m.TopX = v.X
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||||
}
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||||
if v.Y < m.BotY {
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m.BotY = v.Y
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||||
}
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||||
if v.Y > m.TopY {
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m.TopY = v.Y
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||||
}
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||||
var d *MazeCoord
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var ok bool
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||||
// Hook up north
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||||
if d, ok = m.maze[c(v.X, v.Y-1)]; ok {
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v.N = d
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} else if v.Value == '.' {
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||||
// North Portal
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name := string([]byte{lines[v.Y-2][v.X], lines[v.Y-1][v.X]})
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var p *Portal
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||||
if p, ok = m.portals[name]; ok {
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||||
v.N = m.maze[c(p.X1, p.Y1)]
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||||
m.maze[c(p.X1, p.Y1)].S = v
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||||
p.X2 = v.X
|
||||
p.Y2 = v.Y
|
||||
} else {
|
||||
m.portals[name] = &Portal{
|
||||
Name: name,
|
||||
X1: v.X,
|
||||
Y1: v.Y,
|
||||
}
|
||||
}
|
||||
}
|
||||
// Hook up east
|
||||
if d, ok = m.maze[c(v.X+1, v.Y)]; ok {
|
||||
v.E = d
|
||||
} else if v.Value == '.' {
|
||||
// East Portal
|
||||
name := string([]byte{lines[v.Y][v.X+1], lines[v.Y][v.X+2]})
|
||||
var p *Portal
|
||||
if p, ok = m.portals[name]; ok {
|
||||
v.E = m.maze[c(p.X1, p.Y1)]
|
||||
m.maze[c(p.X1, p.Y1)].W = v
|
||||
p.X2 = v.X
|
||||
p.Y2 = v.Y
|
||||
} else {
|
||||
m.portals[name] = &Portal{
|
||||
Name: name,
|
||||
X1: v.X,
|
||||
Y1: v.Y,
|
||||
}
|
||||
}
|
||||
}
|
||||
// Hook up south
|
||||
if d, ok = m.maze[c(v.X, v.Y+1)]; ok {
|
||||
v.S = d
|
||||
} else if v.Value == '.' {
|
||||
// South Portal
|
||||
name := string([]byte{lines[v.Y+1][v.X], lines[v.Y+2][v.X]})
|
||||
var p *Portal
|
||||
if p, ok = m.portals[name]; ok {
|
||||
v.S = m.maze[c(p.X1, p.Y1)]
|
||||
m.maze[c(p.X1, p.Y1)].N = v
|
||||
fmt.Println(v.S, "<=>", m.maze[c(p.X1, p.Y1)].N)
|
||||
p.X2 = v.X
|
||||
p.Y2 = v.Y
|
||||
} else {
|
||||
m.portals[name] = &Portal{
|
||||
Name: name,
|
||||
X1: v.X,
|
||||
Y1: v.Y,
|
||||
}
|
||||
}
|
||||
}
|
||||
// Hook up west
|
||||
if d, ok = m.maze[c(v.X-1, v.Y)]; ok {
|
||||
v.W = d
|
||||
} else if v.Value == '.' {
|
||||
// West Portal
|
||||
name := string([]byte{lines[v.Y][v.X-2], lines[v.Y][v.X-1]})
|
||||
var p *Portal
|
||||
if p, ok = m.portals[name]; ok {
|
||||
v.W = m.maze[c(p.X1, p.Y1)]
|
||||
m.maze[c(p.X1, p.Y1)].E = v
|
||||
p.X2 = v.X
|
||||
p.Y2 = v.Y
|
||||
} else {
|
||||
m.portals[name] = &Portal{
|
||||
Name: name,
|
||||
X1: v.X,
|
||||
Y1: v.Y,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
st := m.portals["AA"]
|
||||
m.current = m.maze[c(st.X1, st.Y1)]
|
||||
return &m
|
||||
}
|
||||
|
||||
func (m *Maze) MoveNorth() bool {
|
||||
if m.current.N != nil && m.current.N.Value == '.' {
|
||||
m.current = m.current.N
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func (m *Maze) MoveEast() bool {
|
||||
if m.current.E != nil && m.current.E.Value == '.' {
|
||||
m.current = m.current.E
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func (m *Maze) MoveSouth() bool {
|
||||
if m.current.S != nil && m.current.S.Value == '.' {
|
||||
m.current = m.current.S
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func (m *Maze) MoveWest() bool {
|
||||
if m.current.W != nil && m.current.W.Value == '.' {
|
||||
m.current = m.current.W
|
||||
return true
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func (m *Maze) Print() {
|
||||
for y := m.BotY; y <= m.TopY; y++ {
|
||||
for x := m.BotX; x <= m.TopX; x++ {
|
||||
if m.current.X == x && m.current.Y == y {
|
||||
fmt.Print("%")
|
||||
} else {
|
||||
if v, ok := m.maze[c(x, y)]; ok {
|
||||
fmt.Print(string(v.Value))
|
||||
} else {
|
||||
fmt.Print(" ")
|
||||
}
|
||||
}
|
||||
}
|
||||
fmt.Println()
|
||||
}
|
||||
}
|
||||
|
||||
func (m *Maze) GetStart() *MazeCoord {
|
||||
start := m.portals["AA"]
|
||||
return m.maze[c(start.X1, start.Y1)]
|
||||
}
|
||||
|
||||
func (m *Maze) IsDone() bool {
|
||||
return m.IsEnd(m.current.X, m.current.Y)
|
||||
}
|
||||
|
||||
func (m *Maze) GetEnd() *MazeCoord {
|
||||
end := m.portals["ZZ"]
|
||||
return m.maze[c(end.X1, end.Y1)]
|
||||
}
|
||||
|
||||
func (m *Maze) IsEnd(x, y int) bool {
|
||||
return x == m.GetEnd().X && y == m.GetEnd().Y
|
||||
}
|
||||
|
||||
type Portal struct {
|
||||
Name string
|
||||
X1, Y1, X2, Y2 int
|
||||
}
|
||||
|
||||
type MazeCoord struct {
|
||||
X, Y int
|
||||
N, E, S, W *MazeCoord
|
||||
Value byte
|
||||
visited bool
|
||||
steps int
|
||||
}
|
||||
|
||||
func c(x, y int) string {
|
||||
return fmt.Sprintf("[%d, %d]", x, y)
|
||||
}
|
||||
19
2019/day20/testinput1
Normal file
19
2019/day20/testinput1
Normal file
@@ -0,0 +1,19 @@
|
||||
A
|
||||
A
|
||||
#######.#########
|
||||
#######.........#
|
||||
#######.#######.#
|
||||
#######.#######.#
|
||||
#######.#######.#
|
||||
##### B ###.#
|
||||
BC...## C ###.#
|
||||
##.## ###.#
|
||||
##...DE F ###.#
|
||||
##### G ###.#
|
||||
#########.#####.#
|
||||
DE..#######...###.#
|
||||
#.#########.###.#
|
||||
FG..#########.....#
|
||||
###########.#####
|
||||
Z
|
||||
Z
|
||||
Reference in New Issue
Block a user