I guess I didn't test before that last commit

src/cartographerFlatXY.js

@@ -50,7 +50,7 @@ export default class CartographerFlatXY extends Cartographer {
 	}
 
 	tileToPixel(square) {
-		square = typeof square === 'Square' ? square : new Square(...arguments);
+		square = square instanceof Square ? square : new Square(...arguments);
 
 		const x = square.getX() * this.minWidth();
 		const y = square.getY() * this.minWidth();
@@ -59,7 +59,7 @@ export default class CartographerFlatXY extends Cartographer {
 	}
 
 	pixelToTile(point) {
-		point = typeof point === 'Point' ? point : new Point(x, y);
+		point = point instanceof Point ? point : new Point(...arguments);
 
 		const pixelX = point.getX() - this.originX;
 		const pixelY = this.originY - point.getY();

src/cartographerFlatXYZ.js

@@ -50,7 +50,7 @@ export default class CartographerFlatXYZ extends Cartographer {
 	}
 
 	tileToPixel(hex) {
-		hex = typeof hex === 'Hex' ? hex : new Hex(...arguments);
+		hex = hex instanceof Hex ? hex : new Hex(...arguments);
 
 		const pixelX = this.scale * 3/2 * hex.getQ();
 		const pixelY = this.scale * sqrt3 * (hex.getR() + (hex.getQ() / 2));
@@ -59,7 +59,7 @@ export default class CartographerFlatXYZ extends Cartographer {
 	}
 
 	pixelToTile(point) {
-		point = typeof point === 'Point' ? point : new Point(x, y);
+		point = point instanceof Point ? point : new Point(...arguments);
 
 		const pixelX = point.getX() - this.originX;
 		const pixelY = point.getY() - this.originY;

src/cartographerPointyXY.js

@@ -50,7 +50,7 @@ export default class CartographerPointyXY extends Cartographer {
 	}
 
 	tileToPixel(square) {
-		square = typeof square === 'Square' ? square : new Square(...arguments);
+		square = square instanceof Square ? square : new Square(...arguments);
 
 		const x = square.getX();
 		const y = square.getY();
@@ -63,7 +63,7 @@ export default class CartographerPointyXY extends Cartographer {
 	}
 
 	pixelToTile(point) {
-		point = typeof point === 'Point' ? point : new Point(x, y);
+		point = point instanceof Point ? point : new Point(...arguments);
 
 		const pixelX = point.getX() - this.originX;
 		const pixelY = this.originY - point.getY();

src/cartographerPointyXYZ.js

@@ -50,7 +50,7 @@ export default class CartographerPointyXYZ extends Cartographer {
 	}
 
 	tileToPixel(hex) {
-		hex = typeof hex === 'Hex' ? hex : new Hex(...arguments);
+		hex = hex instanceof Hex ? hex : new Hex(...arguments);
 
 		const pixelX = this.scale * sqrt3 * (hex.getQ() + (hex.getR() / 2));
 		const pixelY = this.scale * 3/2 * hex.getR();
@@ -59,7 +59,7 @@ export default class CartographerPointyXYZ extends Cartographer {
 	}
 
 	pixelToTile(point) {
-		point = typeof point === 'Point' ? point : new Point(x, y);
+		point = point instanceof Point ? point : new Point(...arguments);
 
 		const pixelX = point.getX() - this.originX;
 		const pixelY = point.getY() - this.originY;

src/main.js

@@ -52,7 +52,6 @@ class Demo {
 			utils.random(Tessellate.TILE_STYLES),
 			utils.random(Tessellate.TILE_ORIENTATIONS),
 		));
-		console.log(this.map[this.map.length - 1]);
 	}
 
 	createTile(x, y, drawStyle, tileStyle, orientation) {

src/tessellate.js

@@ -95,9 +95,6 @@ export default class Tessellate {
 			zoom: this.zoom
 		});
 
-		this.map = [];
-		this.seedTiles();
-
 		const cartographer = selectCartographer(this.settings.board, this.settings.orientation);
 		this.cartographer = new cartographer({
 			height: this.settings.height,