Add Rommel in the Desert skeleton.

1 files changed, 138 insertions, 0 deletions

diff --git a/rules.js b/rules.js
new file mode 100644
index 0000000..142e0c4
--- /dev/null
+++ b/rules.js
@@ -0,0 +1,138 @@
+"use strict";
+
+let game = null;
+let view = null;
+
+exports.roles = [ "Axis", "Allied" ];
+
+exports.scenarios = [
+	"1940",
+	"1941",
+	"1941-42",
+	"Crusader",
+	"Battleaxe",
+	"1942",
+	"Gazala",
+	"Pursuit to Alamein",
+];
+
+exports.ready = function (scenario, options, players) {
+	return players.length === 2;
+}
+
+function random(n) {
+	return ((game.seed = game.seed * 69621 % 0x7fffffff) / 0x7fffffff) * n | 0;
+}
+
+function shuffle(deck) {
+	for (let i = deck.length - 1; i > 0; --i) {
+		let j = random(i + 1);
+		let tmp = deck[j];
+		deck[j] = deck[i];
+		deck[i] = tmp;
+	}
+}
+
+function remove_from_array(array, item) {
+	let i = array.indexOf(item);
+	if (i >= 0)
+		array.splice(i, 1);
+}
+
+function logbr() {
+	if (game.log.length > 0 && game.log[game.log.length-1] !== "")
+		game.log.push("");
+}
+
+function log(msg) {
+	game.log.push(msg);
+}
+
+function clear_undo() {
+	game.undo = [];
+}
+
+function push_undo() {
+	game.undo.push(JSON.stringify(game, (k,v) => {
+		if (k === 'undo') return 0;
+		if (k === 'log') return v.length;
+		return v;
+	}));
+}
+
+function pop_undo() {
+	let save_undo = game.undo;
+	let save_log = game.log;
+	game = JSON.parse(save_undo.pop());
+	game.undo = save_undo;
+	save_log.length = game.log;
+	game.log = save_log;
+}
+
+function gen_action(action, argument) {
+	if (argument !== undefined) {
+		if (!(action in view.actions)) {
+			view.actions[action] = [ argument ];
+		} else {
+			if (!view.actions[action].includes(argument))
+				view.actions[action].push(argument);
+		}
+	} else {
+		view.actions[action] = 1;
+	}
+}
+
+let states = {};
+
+exports.setup = function (seed, scenario, options) {
+	game = {
+		seed: seed,
+		log: [],
+		undo: [],
+	};
+	return game;
+}
+
+exports.action = function (state, current, action, arg) {
+	game = state;
+	update_aliases();
+	let S = states[game.state];
+	if (action in S) {
+		S[action](arg, current);
+	} else {
+		if (action === 'undo' && game.undo && game.undo.length > 0)
+			pop_undo();
+		else
+			throw new Error("Invalid action: " + action);
+	}
+	return game;
+}
+
+exports.resign = function (state, current) {
+	// No resigning allowed.
+	return state;
+}
+
+exports.view = function(state, current) {
+	game = state;
+	update_aliases();
+
+	view = {
+		log: game.log,
+		active: game.active,
+		prompt: null,
+	};
+
+	if (current === 'Observer' || game.active !== current) {
+		view.prompt = `Waiting for ${game.active} \u2014 ${game.state}...`;
+	} else {
+		view.actions = {}
+		states[game.state].prompt();
+		if (game.undo && game.undo.length > 0)
+			view.actions.undo = 1;
+		else
+			view.actions.undo = 0;
+	}
+
+	return view;
+}