diff --git a/assets/scripts/modules/sketches/console.ts b/assets/scripts/modules/sketches/console.ts
new file mode 100644
index 0000000..089f85a
--- /dev/null
+++ b/assets/scripts/modules/sketches/console.ts
@@ -0,0 +1,66 @@
+import {
+    IntegerPoint as Point,
+    IntegerSize as Size,
+    Rect,
+} from "./geometry.js";
+
+export class Console {
+    #screen: Cell[];
+    #size: Size;
+
+    constructor(size: Size) {
+        const length = size.width * size.height;
+        this.#size = size
+
+        this.#screen = new Array(length);
+        for (let i = 0; i < length; i++) {
+            this.#screen[i] = new Cell(' ')
+        }
+    }
+
+    drawInRect(rect: Rect) {
+        const cellSize = new Size(
+            rect.size.width / this.#size.width,
+            rect.size.height / this.#size.height
+        );
+
+        for (let y = 0; y < this.#size.height; y++) {
+            for (let x = 0; x < this.#size.width; x++) {
+                const pt = new Point(x, y);
+                const character = this.characterAt(pt);
+            }
+        }
+    }
+
+    characterAt(pt: Point) {
+        return this.#cellAt(pt).character;
+    }
+
+    #cellAt(pt: Point): Cell {
+        return this.#screen[this.#size.width * pt.y + pt.x];
+    }
+}
+
+export class Color {
+    red: number;
+    green: number;
+    blue: number;
+
+    constructor(r: number, g: number, b: number) {
+        this.red = Math.min(1, Math.max(0, r));
+        this.green = Math.min(1, Math.max(0, g));
+        this.blue = Math.min(1, Math.max(0, b));
+    }
+}
+
+export class Cell {
+    character: String;
+    foregroundColor: Color;
+    backgroundColor?: Color;
+
+    constructor(character: String, foregroundColor?: Color, backgroundColor?: Color) {
+        this.character = character ? character : " ";
+        this.foregroundColor = foregroundColor ? foregroundColor : new Color(1, 1, 1);
+        this.backgroundColor = backgroundColor;
+    }
+}
diff --git a/assets/scripts/modules/sketches/geometry.ts b/assets/scripts/modules/sketches/geometry.ts
new file mode 100644
index 0000000..92f4608
--- /dev/null
+++ b/assets/scripts/modules/sketches/geometry.ts
@@ -0,0 +1,144 @@
+export class Point {
+    x = 0;
+    y = 0;
+
+    constructor(x: number = 0, y: number = 0) {
+        if (x !== null && x !== undefined) {
+            this.x = x;
+        }
+        if (y !== null && y !== undefined) {
+            this.y = y;
+        }
+    }
+
+    toString() {
+        return `(${this.x}, ${this.y})`;
+    }
+
+    equalsPoint(other: Point): boolean {
+        return this.x === other.x && this.y === other.y;
+    }
+}
+
+
+export class IntegerPoint extends Point {
+    constructor(x: number = 0, y: number = 0) {
+        super(x ? Math.floor(x) : 0, y ? Math.floor(y) : 0);
+    }
+
+    *neighbors() {
+        const x = this.x;
+        const y = this.y;
+
+        yield new IntegerPoint(x - 1, y - 1);
+        yield new IntegerPoint(x,     y - 1);
+        yield new IntegerPoint(x + 1, y - 1);
+        yield new IntegerPoint(x - 1, y);
+        yield new IntegerPoint(x + 1, y);
+        yield new IntegerPoint(x - 1, y + 1);
+        yield new IntegerPoint(x,     y + 1);
+        yield new IntegerPoint(x + 1, y + 1);
+    }
+}
+
+
+export class Size {
+    width = 0;
+    height = 0;
+
+    constructor(width: number = 0, height: number = 0) {
+        if (width !== null && width !== undefined) {
+            this.width = width;
+        }
+        if (height !== null && height !== undefined) {
+            this.height = height;
+        }
+    }
+
+    toString() {
+        return `(${this.width}, ${this.height})`
+    }
+}
+
+
+export class IntegerSize extends Size {
+    constructor(w: number = 0, h: number = 0) {
+        super(w ? Math.floor(w) : 0, h ? Math.floor(h) : 0);
+    }
+}
+
+
+export class Rect {
+    origin = new Point();
+    size = new Size();
+
+    static fromCoordinates(x: number, y: number, w: number, h: number) {
+        return new Rect(new Point(x, y), new Size(w, h));
+    }
+
+    constructor(origin: Point, size: Size) {
+        if (origin instanceof Point) {
+            this.origin = origin;
+        } else {
+            throw new Error("Invalid origin value");
+        }
+
+        if (size instanceof Size) {
+            this.size = size;
+        } else {
+            throw new Error("Invalid size value");
+        }
+    }
+
+    toString() {
+        return `{${this.origin.toString()}, ${this.size.toString()}}`
+    }
+
+    get minX() { return this.origin.x; }
+    get minY() { return this.origin.y; }
+    get maxX() { return this.origin.x + this.size.width; }
+    get maxY() { return this.origin.y + this.size.height; }
+
+    get width() { return this.size.width; }
+    get height() { return this.size.height; }
+    get area() { return this.size.width * this.size.height; }
+
+    *xCoordinates() {
+        for (let x = this.minX; x <= this.maxX; x++) {
+            yield x;
+        }
+    }
+
+    *yCoordinates() {
+        for (let y = this.minY; y <= this.maxY; y++) {
+            yield y;
+        }
+    }
+
+    insetRect(inset: number) {
+        const twiceInset = 2 * inset;
+
+        return Rect.fromCoordinates(
+            this.origin.x + inset,
+            this.origin.y + inset,
+            this.size.width - twiceInset,
+            this.size.height - twiceInset
+        );
+    }
+
+    intersects(other: Rect) {
+        if (other.minX > this.maxX)
+            return false;
+
+        if (other.maxX < this.minX)
+            return false;
+
+        if (other.minY > this.maxY)
+            return false;
+
+        if (other.maxY < this.minY)
+            return false;
+
+        return true;
+    }
+}
diff --git a/assets/scripts/nethack/dungeon.js b/assets/scripts/nethack/dungeon.js
index 0c8eabb..32b3dd7 100644
--- a/assets/scripts/nethack/dungeon.js
+++ b/assets/scripts/nethack/dungeon.js
@@ -1,6 +1,12 @@
 const NUMBER_OF_ROOMS = 12;
 const TUNNEL_PASSES = 3;
 
+import {
+    IntegerPoint as Point,
+    IntegerSize as Size,
+    Rect
+} from "scripts/modules/sketches/geometry.ts";
+
 class Cell {
   static CORRIDOR = "#";
   static DOOR_CLOSED = "+";
@@ -11,6 +17,7 @@ class Cell {
 
   constructor(char, charColor) {
     this.character = char;
+    this.characterColor = charColor;
   }
 
   empty() { this.character = " "; }
@@ -33,104 +40,6 @@ class Cell {
   canBecomeDoor() { return this.character === "─" || this.character === "│" }
 }
 
-class Point {
-  x = 0;
-  y = 0;
-
-  constructor(x, y) {
-    if (x) { this.x = x; }
-    if (y) { this.y = y; }
-  }
-
-  *neighbors() {
-    const x = this.x;
-    const y = this.y;
-
-    yield new Point(x - 1, y - 1);
-    yield new Point(x,     y - 1);
-    yield new Point(x + 1, y - 1);
-    yield new Point(x - 1, y);
-    yield new Point(x + 1, y);
-    yield new Point(x - 1, y + 1);
-    yield new Point(x,     y + 1);
-    yield new Point(x + 1, y + 1);
-  }
-
-  equalsPoint(other) { return this.x === other.x && this.y === other.y; }
-}
-
-class Size {
-  width = 0;
-  height = 0;
-
-  constructor(width, height) {
-    this.width = width;
-    this.height = height;
-  }
-}
-
-class Rect {
-  origin = new Point();
-  size = new Size();
-
-  static fromCoordinates(x, y, w, h) {
-    return new Rect(new Point(x, y), new Size(w, h));
-  }
-
-  constructor(origin, size) {
-    this.origin = origin;
-    this.size = size;
-  }
-
-  get minX() { return this.origin.x; }
-  get minY() { return this.origin.y; }
-  get maxX() { return this.origin.x + this.size.width; }
-  get maxY() { return this.origin.y + this.size.height; }
-
-  get width() { return this.size.width; }
-  get height() { return this.size.height; }
-  get area() { return this.size.width * this.size.height; }
-
-  *xCoordinates() {
-    for (let x = this.minX; x <= this.maxX; x++) {
-      yield x;
-    }
-  }
-
-  *yCoordinates() {
-    for (let y = this.minY; y <= this.maxY; y++) {
-      yield y;
-    }
-  }
-
-  insetRect(inset) {
-    const twiceInset = 2 * inset;
-
-    return Rect.fromCoordinates(
-      this.origin.x + inset,
-      this.origin.y + inset,
-      this.size.width - twiceInset,
-      this.size.height - twiceInset
-    );
-  }
-
-  intersects(otherRect) {
-    if (otherRect.minX > this.maxX)
-      return false;
-
-    if (otherRect.maxX < this.minX)
-      return false;
-
-    if (otherRect.minY > this.maxY)
-      return false;
-
-    if (otherRect.maxY < this.minY)
-      return false;
-
-    return true;
-  }
-}
-
 class Grid {
   #size;
   #cells = [];
@@ -274,6 +183,7 @@ class NRandomRoomsGenerator {
   #generateRooms() {
     let rects = new Array();
 
+    const bounds = this.#bounds;
     const sizeRange = NRandomRoomsGenerator.MAX_ROOM_DIMENSION - NRandomRoomsGenerator.MIN_ROOM_DIMENSION;
 
     while (rects.length < this.#numberOfRooms) {
@@ -283,8 +193,8 @@ class NRandomRoomsGenerator {
       );
 
       const randomOrigin = new Point(
-        this.#bounds.minX + randomInt(this.#bounds.maxX - randomSize.width),
-        this.#bounds.minY + randomInt(this.#bounds.maxY - randomSize.height)
+        bounds.minX + randomInt(bounds.maxX - randomSize.width),
+        bounds.minY + randomInt(bounds.maxY - randomSize.height)
       );
 
       const proposedRoomRect = new Rect(randomOrigin, randomSize);
@@ -294,6 +204,8 @@ class NRandomRoomsGenerator {
         continue;
       }
 
+      console.log("Pushing new room rect", proposedRoomRect.toString());
+
       rects.push(proposedRoomRect);
     }
 
@@ -531,7 +443,7 @@ class TunnelGenerator {
     let toPoint;
     if (fromRoomBounds.maxX < toRoomBounds.minX) {
       // fromRoom is farther left than toRoom
-      
+
       fromPoint = new Point(fromRoomBounds.maxX, fromRoomBounds.minY + 1 + randomInt(fromRoomBounds.height - 2));
       foundFromPoint = this.#canPlaceDoorAt(fromPoint);
 
@@ -699,7 +611,7 @@ class TunnelGenerator {
 }
 
 function randomInt(n) {
-  max = Math.floor(n);
+  const max = Math.floor(n);
   return Math.floor(Math.random() * max);
 }
 
@@ -709,10 +621,14 @@ new p5(p => {
   const CELL_WIDTH = 20;
   const CELL_HEIGHT = Math.floor(CELL_WIDTH * 1.3);
 
+  const cellSize = new Size(CELL_WIDTH, CELL_HEIGHT);
+
   p.setup = () => {
     const container = document.querySelector('#dungeon-background');
-    canvasWidth = parseFloat(getComputedStyle(container).width);
-    canvasHeight = parseFloat(getComputedStyle(container).height);
+    const canvasWidth = parseFloat(getComputedStyle(container).width);
+    const canvasHeight = parseFloat(getComputedStyle(container).height);
+
+    console.log(`Canvas size is ${(new Size(canvasWidth, canvasHeight)).toString()}`);
 
     let canvas = p.createCanvas(canvasWidth, canvasHeight);
     canvas.canvas.removeAttribute('style');
@@ -723,18 +639,25 @@ new p5(p => {
 
     const gridBounds = Rect.fromCoordinates(
       0, 0,
-      Math.max(80, Math.ceil(canvasWidth / CELL_WIDTH) - 1),
-      Math.max(24, Math.ceil(canvasHeight / CELL_HEIGHT) - 1)
+      Math.max(80, Math.floor(canvasWidth / CELL_WIDTH) - 1),
+      Math.max(24, Math.floor(canvasHeight / CELL_HEIGHT) - 1)
     );
 
-    console.log(`Generating grid with size ${gridBounds.size.width} x ${gridBounds.size.height}`);
+    if (gridBounds.width === 80) {
+      cellSize.width = Math.floor(canvasWidth / gridBounds.width);
+    }
+    if (gridBounds.height === 24) {
+      cellSize.height = Math.floor(canvasHeight / gridBounds.height);
+    }
+
+    console.log(`Generating grid with size ${gridBounds.size.toString()}, cell: ${cellSize.toString()}`);
 
     grid = new Grid(gridBounds.size.width, gridBounds.size.height);
     grid.generate(p, NRandomRoomsGenerator, TunnelGenerator);
   }
 
   p.draw = () => {
-    p.textSize(CELL_HEIGHT);
+    p.textSize(cellSize.height);
 
     for (let y = 0; y < grid.height; y++) {
       for (let x = 0; x < grid.width; x++) {
@@ -744,7 +667,7 @@ new p5(p => {
         p.fill(fillColor);
 
         p.textAlign(p.CENTER, p.CENTER);
-        p.text(cell.character, x * CELL_WIDTH, y * CELL_HEIGHT, CELL_WIDTH, CELL_HEIGHT);
+        p.text(cell.character, x * cellSize.width, y * cellSize.height, cellSize.width, cellSize.height);
       }
     }
 
diff --git a/layouts/nethack/single.html b/layouts/nethack/single.html
index 8c8591d..726da62 100644
--- a/layouts/nethack/single.html
+++ b/layouts/nethack/single.html
@@ -25,8 +25,8 @@
     <script defer src="{{ .Secure.RelPermalink }}"></script>
   {{- end -}}
 
-  {{- with partial "secure_asset.html" "scripts/nethack/dungeon.js" -}}
-    <script defer src="{{ .Secure.RelPermalink }}"></script>
+  {{- with resources.Get "scripts/nethack/dungeon.js" -}}
+    <script defer type=module src="{{ (. | js.Build).RelPermalink }}"></script>
   {{- end -}}
 
   {{- range $script := .Resources.Match "*.js" -}}