commit 59acbd0a6d9646e250e9c8207ba900e53bb8251f
Author: texhno <texhno@dmz.rs>
Date:   Tue Dec 5 19:52:03 2023 +0100

    Initialcommit

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3c3629e
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+node_modules
diff --git a/Tank.ts b/Tank.ts
new file mode 100644
index 0000000..bb68e19
--- /dev/null
+++ b/Tank.ts
@@ -0,0 +1,12 @@
+export interface ITank {
+  name: string;
+  health: number;
+
+  attackDelay: number;
+}
+type BuildTank = (name: string) => ITank;
+export const buildTank: BuildTank = (name) => ({
+  name,
+  health: 100,
+  attackDelay: 0,
+} as ITank);
diff --git a/index.ts b/index.ts
new file mode 100644
index 0000000..969bd23
--- /dev/null
+++ b/index.ts
@@ -0,0 +1,59 @@
+/**
+ * FatCat Coders tank battle challenge :)
+ * 
+ * There will be 5 tanks, representing different
+ * programming langugages.
+ * 
+ * May the best language live
+ * 
+ * KAPOW!!!
+ */
+
+import { buildTank, ITank } from "./Tank";
+
+const tankPrototypes = [
+  "Rust",
+  "JavaScript",
+  "TypeScript",
+  "Haskell",
+  "HTML", // If it wins, it's a programming language
+];
+const initialTanks = tankPrototypes.map(buildTank);
+
+type CritMultiplier = (health: number) => number;
+const critMultiplier: CritMultiplier = (health) =>
+  Math.floor(Math.random() * 10) >= 10 - health / 10 ? 1 : 2;
+
+type SetStats = (tank: ITank) => ITank;
+const setStats: SetStats = (tank) => ({
+  ...tank,
+  attackDelay: tank.attackDelay === 0 ? Math.floor(tank.health / 10) : tank.attackDelay - 1,
+} as ITank);
+
+type Attack = (_: ITank[], tank: ITank, tIndex: number, tanks: ITank[]) => ITank[];
+const attack: Attack = (_acc, tank, _iTank, tanks) => {
+  if (tank.attackDelay === 0) {
+    const target = tanks[Math.floor(Math.random() * tanks.length)];
+    const attackDamage = critMultiplier(tank.health) * tank.health / 100;
+    target.health -= attackDamage;
+  };
+
+  return tanks.map(setStats);
+};
+
+type IsLive = (tank: ITank) => boolean;
+const isLive: IsLive = (tank) => tank.health >= 0;
+
+type Attacks = (tanks: ITank[]) => ITank[];
+const attacksRound: Attacks = (tanks) =>
+  tanks
+    .reduce(attack,  tanks)
+    .filter(isLive);
+
+type Battle = (remainingTanks: ITank[]) => ITank;
+const battleItOut: Battle = (remainingTanks: ITank[]) =>
+  remainingTanks.length === 1
+    ? remainingTanks[0]
+    : battleItOut(attacksRound(remainingTanks));
+
+console.log(battleItOut(initialTanks).name);
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..ed99c7a
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,360 @@
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diff --git a/package.json b/package.json
new file mode 100644
index 0000000..0da58d3
--- /dev/null
+++ b/package.json
@@ -0,0 +1,17 @@
+{
+  "name": "fatcat_tank_battle",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "@types/node": "^20.10.3",
+    "ts-node": "^10.9.1",
+    "typescript": "^5.3.2"
+  }
+}