index.js

String.prototype.clr = function(hexColor) { return `<font color='#${hexColor}'>${this}</font>` ;};

module.exports = function CmdChannel(mod) {

	const channels = {'2': 1, '3': 1, '5': 3, '13': 8, '7001': 7, '7002': 3, '7003': 5, '7004': 4, '7005': 10, '7011': 7, '7012': 5, '7013': 1, '7014': 5, '7015': 7, '7021': 3, '7022': 3, '7023': 4, '7031': 3, '8001': 1};

	let hooks = [],
		sCurrentChannel = null,
		skip = false,
		sSpawnMe = null,
		cOne = -1,
		cTwo = -1;

	mod.game.on('enter_game', () => {
		if (!mod.manager.isInstalled('quick-load'))
			load();
	});

	mod.game.on('leave_game', () => { unload(); });
	
	mod.command.add(['c', 'ch', 'channel', 'ㅊ'], (a, co, ct) => {
		let c = sCurrentChannel.channel,
			//m = channels[mod.game.me.zone],
			m = 10, // lazy
			t = null;
		if (mod.game.me.inBattleground || mod.game.me.inCombat || m === 1 || sCurrentChannel.type !== 1 || c > 10)
			msg(`${mod.game.me.inBattleground ? 'You are in a battleground' : mod.game.me.inCombat ? 'You are in combat' : c > 10 ? 'You are in an instance' : m === 1 ? 'There is only one channel' : t !== 1 ? 'You are restricted from switching channels' : 'null'}.`.clr('FF0000'));
		else {
			switch (a ? a.toLowerCase() : a) {
				case undefined:
				case 'n':
				case 'next':
					t = (c === m) ? 1 : (c + 1);
					break;
				case 'b':
				case 'back':
					t = (c === 1) ? m : (c - 1);
					break;
				case 's':
				case 'set':
					if(co && ct && co > 0 && ct > 0 && co <= m && ct <= m && co != ct){
						cOne = co;
						cTwo = ct;
						msg(`C1 = ${cOne}, C2 = ${cTwo}`.clr('00FF33'));
						return;
					} else{
						msg(`${m === 1 ? 'There is only one channel' : 'Invalid arguments. Type: c s ChannelOne ChannelTwo'}.`.clr('FF0000'));
						return;
					}
				case 't':
				case 'toggle':
					if(c == cOne) t = cTwo;
					else t = cOne;
					break;
				default:
					if (isNaN(a) || (a < 1 && m !== 10) || (a > m) || a === c.toString())
						msg(`${(isNaN(a) || (a < 1 && m !== 10)) ? a + ' is an invalid parameter' : (a > m) ? a + ' exceeds the maximum number of channels (' + m + ')' : a === c.toString() ? 'You are already on this channel' : 'null'}.`.clr('FF0000'));
					else
						t = (a === 0) ? 10 : a;
			}
			if (t && t <= m && t > 0) {
				mod.send('C_SELECT_CHANNEL', 1, {
					unk: 1,
					zone: mod.game.me.zone,
					channel: (t - 1)
				});
				msg(`Switching to channel ${t} of ${m}.`.clr('00FF33'));
			} else {
				msg(`${t} is an invalid channel. Type: c s ChannelOne ChannelTwo to set proper channels'`.clr('FF0000'));
			}
		}
	});

	mod.hook('S_CURRENT_CHANNEL', 2, ({channel, type}) => { sCurrentChannel = {channel: channel, type: type}; });

	function hook() { hooks.push(mod.hook(...arguments)); }

	function load() {
		if (!hooks.length) {

			hook('S_PREPARE_SELECT_CHANNEL', 1, () => { skip = true; });

			hook('S_CANCEL_SELECT_CHANNEL', 1, () => { skip = false; });

			hook('S_LOAD_TOPO', 3, {order: 100}, (event) => {
				if(skip)
					return event.quick = true;
				skip = false;
			});

			hook('S_SPAWN_ME', 3, {order: 100}, (event) => {
				sSpawnMe = event;

				if(skip) {
					skip = false;
					mod.send('S_SPAWN_ME', 3, (event));
					mod.send('C_PLAYER_LOCATION', 5, {
						loc: event.loc,
						w: event.w,
						lookDirection: 0,
						dest: event.loc,
						type: 7,
						jumpDistance: 0,
						inShuttle: 0,
						time: 0
					});
				}
			});

			hook('C_PLAYER_LOCATION', 5, (event) => {
				if(sSpawnMe) {
					if(event.loc.z !== sSpawnMe.loc.z) {
						mod.send('S_INSTANT_MOVE', 3, {
							gameId: mod.game.me.gameId,
							loc: sSpawnMe.loc,
							w: sSpawnMe.w
						});
						sSpawnMe = null;
						return false;
					}
					sSpawnMe = null;
				}
			});
		}
	}

	function unload() {
		if (hooks.length) {
			for (let i of hooks)
				mod.unhook(i);
			hooks = [];
		}
	}

	function msg(event) { mod.command.message(event); }

	this.destructor = () => { mod.command.remove(['c', 'ch', 'channel', 'ㅊ']); };
};