Add base sprite impl.

src/main.ts

@@ -1,6 +1,8 @@
 #!/usr/bin/env -S deno run -A
 
 import { writeAll } from "https://deno.land/std@0.224.0/io/mod.ts"
+
+import { Crayon, crayon } from "https://deno.land/x/crayon@3.3.3/mod.ts"
 import { mkSimplexNoise, SimplexNoise } from "npm:@spissvinkel/simplex-noise@1.0.1"
 
 async function main() {
@@ -8,7 +10,7 @@ async function main() {
 	const fishes = await Fishes.load("./assets/fishes")
 	for await (const moved of fishes.movements()) {
 		console.log(moved.name, "at", moved.position)
-		const displayed = esc_clear() + fishes.fishes.map(display).join("") + "\n"
+		const displayed = esc_clear() + fishes.fishes.map((f) => f.display()).join("") + "\n"
 		connections.send(displayed)
 	}
 }
@@ -91,29 +93,86 @@ class Fish {
 		if (this.position[0] > bounds[1][0]) this.position[0] = bounds[1][0]
 		if (this.position[1] > bounds[1][1]) this.position[1] = bounds[1][1]
 	}
+
+	/**
+	 * ```
+	 *       _ <name>
+	 *      /
+	 * #####
+	 * #####
+	 * #####
+	 * ```
+	 */
+	public display() {
+		const tick_pad = " ".repeat(this.size[0])
+		// TODO : add position and color
+		return [
+			tick_pad + " _ " + this.name,
+			tick_pad + "/",
+			...this.shape,
+		]
+			.map((l, i) => esc_goto([this.position[0], this.position[1] + i]) + l)
+			.join("") + "\n"
+	}
 }
 
-/**
- * ```
- *       _ <name>
- *      /
- * #####
- * #####
- * #####
- * ```
- *
- * @param fish Fish to display.
- */
-function display(fish: Fish) {
-	const tick_pad = " ".repeat(fish.size[0])
-	// TODO : add position and color
-	return [
-		tick_pad + " _ " + fish.name,
-		tick_pad + "/",
-		...fish.shape,
-	]
-		.map((l, i) => esc_goto([fish.position[0], fish.position[1] + i]) + l)
-		.join("") + "\n"
+class Vec2 {
+	public constructor(
+		public x: number,
+		public y: number,
+	) {}
+
+	static of(ord: number) {
+		return new Vec2(ord, ord)
+	}
+
+	add(rhs: Vec2) {
+		return new Vec2(
+			this.x + rhs.x,
+			this.y + rhs.y,
+		)
+	}
+
+	sub(rhs: Vec2) {
+		return new Vec2(
+			this.x - rhs.x,
+			this.y - rhs.y,
+		)
+	}
+
+	mul(rhs: Vec2) {
+		return new Vec2(
+			this.x * rhs.x,
+			this.y * rhs.y,
+		)
+	}
+
+	div(rhs: Vec2) {
+		return new Vec2(
+			this.x / rhs.x,
+			this.y / rhs.y,
+		)
+	}
+
+	fac(rhs: number) {
+		return new Vec2(
+			this.x * rhs,
+			this.y * rhs,
+		)
+	}
+}
+
+class Sprite {
+	public constructor(
+		public size: Vec2,
+		public parts: [Vec2, Crayon, string][],
+	) {}
+
+	public static from(lines: string[]) {
+		const size = new Vec2(lines.map((l) => l.length).reduce((a, b) => Math.max(a, b)), lines.length)
+		const result = new Sprite(size, [])
+		return result
+	}
 }
 
 function pick<T>(arr: T[], random = Math.random) {