From e4f562a3891744a110615a3f545f9507a0a5ae38 Mon Sep 17 00:00:00 2001
From: legonzaur <legonzaur@live.fr>
Date: Mon, 18 Dec 2023 12:09:41 +0100
Subject: [PATCH] try 18

---
 18.1.ts           | 138 ++++++++++
 inputs/18         | 666 ++++++++++++++++++++++++++++++++++++++++++++++
 inputs/18.example |  14 +
 3 files changed, 818 insertions(+)
 create mode 100644 18.1.ts
 create mode 100644 inputs/18
 create mode 100644 inputs/18.example

diff --git a/18.1.ts b/18.1.ts
new file mode 100644
index 0000000..1bd8a5e
--- /dev/null
+++ b/18.1.ts
@@ -0,0 +1,138 @@
+import { open } from 'node:fs/promises';
+
+type Wall = {
+    coords: {
+        x: number
+        y: number
+    }
+    walls: {
+        up?: string
+        down?: string
+        left?: string
+        right?: string
+    },
+    bounds: {
+        left?: Wall
+        right?: Wall
+        down?: Wall
+        up?: Wall
+    },
+}
+
+const dMap = {
+    'L': { x: -1, y: 0 },
+    'R': { x: 1, y: 0 },
+    'U': { x: 0, y: -1 },
+    'D': { x: 0, y: 1 },
+}
+
+const file = await open('./inputs/18');
+const wallArray: Wall[] = []
+const position = { x: 0, y: 0 }
+
+function addWall(direction: string, color: string) {
+    let w = wallArray.find(e => e.coords.x == position.x && e.coords.y == position.y)
+    if (w !== undefined) {
+        w.walls = direction == 'U' || direction == 'D' ? { ...w.walls, left: color, right: color } : { ...w.walls, up: color, down: color }
+    } else {
+        const walls = direction == 'U' || direction == 'D' ? { left: color, right: color } : { up: color, down: color }
+        wallArray.push({
+            coords: {
+                x: position.x,
+                y: position.y
+            },
+            bounds: {},
+            walls
+        })
+    }
+}
+
+
+
+for await (const line of file.readLines()) {
+    const processed = /^(?<direction>L|U|D|R) (?<meters>\d+) \((?<color>#[a-zA-Z0-9]+)\)$/gm.exec(line)?.groups
+    if (processed === undefined) throw new Error('wtf')
+    const { direction, meters, color } = processed
+    addWall(direction, color)
+    for (let i = 0; i < Number(meters); i++) {
+        position.x += dMap[direction as keyof typeof dMap].x
+        position.y += dMap[direction as keyof typeof dMap].y
+        addWall(direction, color)
+    }
+
+}
+
+
+const minY = wallArray.reduce((acc, e) => {
+    if (e.coords.y < acc) return e.coords.y
+    return acc
+}, Infinity)
+const minX = wallArray.reduce((acc, e) => {
+    if (e.coords.x < acc) return e.coords.x
+    return acc
+}, Infinity)
+const maxY = wallArray.reduce((acc, e) => {
+    if (e.coords.y > acc) return e.coords.y
+    return acc
+}, -Infinity)
+const maxX = wallArray.reduce((acc, e) => {
+    if (e.coords.x > acc) return e.coords.x
+    return acc
+}, -Infinity)
+
+
+const output = new Array<Array<string>>((maxY - minY) + 1).fill([""]).map(e => new Array<string>((maxX - minX) + 1).fill("."))
+
+
+
+wallArray.forEach((e, index) => {
+    output[e.coords.y - minY][e.coords.x - minX] = '#'
+})
+
+
+wallArray.sort((a, b) => {
+    if (a.coords.y > b.coords.y) {
+        return 1
+    }
+    if (a.coords.y < b.coords.y) {
+        return -1
+    }
+
+    if (a.coords.x > b.coords.y) {
+        return 1
+    }
+    if (a.coords.x > b.coords.y) {
+        return -1
+    }
+    return 0
+})
+
+wallArray.forEach((e, index) => {
+    if (e.walls.up === undefined) return
+    const opposite = wallArray.find(f => f.coords.y > e.coords.y && f.coords.x == e.coords.x && f.walls.down !== undefined && f !== e)
+    if (opposite === undefined) { return }
+    // output[opposite.coords.y - minY][opposite.coords.x - minX] = "O"
+    delete e.walls.down
+    delete opposite.walls.up
+    e.bounds.down = opposite
+    opposite.bounds.up = e
+
+})
+
+const result = wallArray.forEach((e) => {
+    if (e.bounds.down === undefined) { return }
+    const numb = e.bounds.down.coords.y - e.coords.y
+    for (let i = 0; i < numb; i++) {
+        output[(e.coords.y - minY) + i][e.coords.x - minX] = "#"
+    }
+
+}, 0)
+
+
+
+
+
+console.log(output.map(e => e.join('')).join('\n'))
+console.log(output.flat().reduce((acc, e) => e == "#" ? acc + 1 : acc, 0))
+
+await file.close()
diff --git a/inputs/18 b/inputs/18
new file mode 100644
index 0000000..d51ea78
--- /dev/null
+++ b/inputs/18
@@ -0,0 +1,666 @@
+L 6 (#2d8140)
+U 5 (#029b43)
+L 5 (#16fde0)
+U 2 (#5d8343)
+L 6 (#456570)
+U 4 (#5d8341)
+L 10 (#3d3f20)
+U 3 (#5cb3f3)
+L 4 (#175ea0)
+U 3 (#2b09e3)
+R 5 (#215d90)
+U 9 (#63b3e3)
+R 3 (#649cd0)
+U 2 (#2d6503)
+R 8 (#16ff90)
+U 8 (#272c93)
+R 2 (#2e8dc0)
+U 5 (#016b71)
+R 4 (#59fe90)
+D 10 (#016b73)
+R 4 (#36a6e0)
+U 10 (#272c91)
+R 5 (#5b7110)
+U 5 (#0ac293)
+L 8 (#3e42a0)
+U 4 (#63c7b3)
+L 10 (#23a480)
+U 3 (#54b193)
+R 6 (#2c1512)
+U 7 (#8808a3)
+L 6 (#361af2)
+U 8 (#34e113)
+R 8 (#23ac92)
+U 8 (#295273)
+R 2 (#34f352)
+U 4 (#295271)
+L 3 (#4165c2)
+U 4 (#310913)
+L 7 (#2ddd32)
+U 4 (#009ef1)
+L 5 (#88b212)
+U 6 (#009ef3)
+L 8 (#4562e2)
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+U 3 (#09f431)
+L 4 (#2c2120)
+U 7 (#09f433)
+L 6 (#234cb0)
+U 7 (#259633)
+L 5 (#3e0112)
+U 10 (#792553)
+L 6 (#296f12)
+D 7 (#05bd93)
+L 5 (#2a4ca2)
+D 7 (#4ef103)
+R 6 (#63dcc0)
+D 7 (#052a33)
+L 8 (#2de000)
+D 9 (#06d523)
+R 4 (#32fb52)
+D 2 (#309103)
+R 4 (#840340)
+D 4 (#57d573)
+L 3 (#840342)
+D 8 (#0254c3)
+L 3 (#28db22)
+D 7 (#8abb31)
+L 7 (#4a13d2)
+U 6 (#4e42a1)
+L 6 (#001ab2)
+U 6 (#33d6c1)
+L 3 (#1883e2)
+D 9 (#0d4cf1)
+L 3 (#0dd6f2)
+D 3 (#206b81)
+L 4 (#183502)
+D 11 (#002033)
+L 4 (#659452)
+D 10 (#002031)
+L 7 (#1b93c2)
+D 8 (#57a391)
+L 4 (#073082)
+D 10 (#448c71)
+L 5 (#22f102)
+D 2 (#4048e1)
+L 3 (#0ebf72)
+D 3 (#2db973)
+L 7 (#6a7d82)
+D 6 (#37e653)
+R 9 (#146062)
+D 2 (#659fc1)
+R 6 (#4cdeb2)
+D 6 (#427e31)
+L 3 (#370982)
+D 4 (#791803)
+L 12 (#187760)
+D 5 (#486523)
+L 7 (#565750)
+D 9 (#42fa23)
+L 4 (#1bf1e0)
+D 4 (#42fa21)
+L 3 (#437360)
+D 8 (#4c2e23)
+L 3 (#2e1b02)
+D 5 (#498113)
+L 2 (#430752)
+D 3 (#433783)
+L 8 (#5d11a2)
+D 3 (#346513)
+L 8 (#638732)
+D 3 (#65b733)
+L 4 (#2b4472)
+D 7 (#2350d3)
+L 9 (#1dbbd2)
+U 4 (#1ac8d3)
diff --git a/inputs/18.example b/inputs/18.example
new file mode 100644
index 0000000..0ad754b
--- /dev/null
+++ b/inputs/18.example
@@ -0,0 +1,14 @@
+R 6 (#70c710)
+D 5 (#0dc571)
+L 2 (#5713f0)
+D 2 (#d2c081)
+R 2 (#59c680)
+D 2 (#411b91)
+L 5 (#8ceee2)
+U 2 (#caa173)
+L 1 (#1b58a2)
+U 2 (#caa171)
+R 2 (#7807d2)
+U 3 (#a77fa3)
+L 2 (#015232)
+U 2 (#7a21e3)
\ No newline at end of file