🚀 refactor

packages/compute/getAvailableRoutes.ts

@@ -56,3 +56,28 @@ export const getAvailableRoutes = (
     }
   }
 };
+
+export const getInterestingAvailableRoutes = (
+  grid: Grid,
+  snake0: Snake,
+  onSolution: (snakes: Snake[], color: Color) => boolean,
+  n = snake0.length
+) => {
+  const solutions: Snake[] = [];
+
+  getAvailableRoutes(grid, snake0, (snakes, color) => {
+    const [snake] = snakes;
+
+    for (let j = solutions.length; j--; ) {
+      let same = true;
+      for (let i = 0; i < n * 2; i++)
+        same = same && solutions[j][i] === snake[i];
+
+      if (same) return false;
+    }
+
+    solutions.push(snake);
+
+    return onSolution(snakes, color);
+  });
+};

packages/demo/demo.getAvailableRoutes.ts

@@ -1,6 +1,6 @@
 import { createCanvas } from "./canvas";
 import { samples } from "./samples";
-import { getAvailableRoutes } from "@snk/compute/getAvailableRoutes";
+import { getInterestingAvailableRoutes } from "@snk/compute/getAvailableRoutes";
 import { createSnake, Snake, snakeToCells } from "@snk/compute/snake";
 import { GUI } from "dat.gui";
 import { Point } from "@snk/compute/point";
@@ -23,10 +23,15 @@ const snake0 = createSnake([
   { x: -1, y: 3 },
 ]);
 const routes: Snake[][] = [];
-getAvailableRoutes(grid0, snake0, (snakes) => {
-  routes.push(snakes);
-  return routes.length > 10;
-});
+getInterestingAvailableRoutes(
+  grid0,
+  snake0,
+  (snakes) => {
+    routes.push(snakes);
+    return routes.length > 10;
+  },
+  2
+);
 
 const config = { routeN: 0, routeK: 0 };
 

packages/draw/drawSnake.ts

@@ -0,0 +1,32 @@
+import { pathRoundedRect } from "./pathRoundedRect";
+import { Snake, snakeToCells } from "@snk/compute/snake";
+
+type Options = {
+  colorSnake: string;
+  sizeCell: number;
+};
+
+export const drawSnake = (
+  ctx: CanvasRenderingContext2D,
+  snake: Snake,
+  o: Options
+) => {
+  const cells = snakeToCells(snake);
+
+  for (let i = 0; i < cells.length; i++) {
+    const u = (i + 1) * 0.6;
+
+    ctx.save();
+    ctx.fillStyle = o.colorSnake;
+    ctx.translate(cells[i].x * o.sizeCell + u, cells[i].y * o.sizeCell + u);
+    ctx.beginPath();
+    pathRoundedRect(
+      ctx,
+      o.sizeCell - u * 2,
+      o.sizeCell - u * 2,
+      (o.sizeCell - u * 2) * 0.25
+    );
+    ctx.fill();
+    ctx.restore();
+  }
+};

packages/draw/drawWorld.ts

@@ -1,7 +1,7 @@
 import { Grid, Color } from "@snk/compute/grid";
-import { pathRoundedRect } from "./pathRoundedRect";
 import { drawGrid } from "./drawGrid";
-import { Snake, snakeToCells } from "@snk/compute/snake";
+import { Snake } from "@snk/compute/snake";
+import { drawSnake } from "./drawSnake";
 
 type Options = {
   colorDots: Record<Color, string>;
@@ -13,31 +13,6 @@ type Options = {
   sizeBorderRadius: number;
 };
 
-export const drawSnake = (
-  ctx: CanvasRenderingContext2D,
-  snake: Snake,
-  o: Options
-) => {
-  const cells = snakeToCells(snake);
-
-  for (let i = 0; i < cells.length; i++) {
-    const u = (i + 1) * 0.6;
-
-    ctx.save();
-    ctx.fillStyle = o.colorSnake;
-    ctx.translate(cells[i].x * o.sizeCell + u, cells[i].y * o.sizeCell + u);
-    ctx.beginPath();
-    pathRoundedRect(
-      ctx,
-      o.sizeCell - u * 2,
-      o.sizeCell - u * 2,
-      (o.sizeCell - u * 2) * 0.25
-    );
-    ctx.fill();
-    ctx.restore();
-  }
-};
-
 export const drawWorld = (
   ctx: CanvasRenderingContext2D,
   grid: Grid,

tsconfig.json

@@ -1,6 +1,7 @@
 {
   "compilerOptions": {
     "lib": ["dom", "ES2020"],
+    "target": "ES2020",
     "strict": true,
     "skipLibCheck": true,
     "noUnusedLocals": true,