index.js

const path = require("path");

class Servant {
	constructor(info) {
		this.ID = Number(info.id);
		this.UniqueID = Number(info.dbid);
		this.Name = info.name;
	}
	stringify() {
		return {
			"name": this.Name,
			"id": this.ID.toString(),
			"dbid": this.UniqueID.toString()
		};
	}
}

module.exports = function AutoPet(mod) {
	mod.dispatch.addDefinition("C_REQUEST_SPAWN_SERVANT", 1, path.join(__dirname, "defs", "C_REQUEST_SPAWN_SERVANT.1.def"));
	mod.dispatch.addDefinition("C_REQUEST_SPAWN_SERVANT", 2, path.join(__dirname, "defs", "C_REQUEST_SPAWN_SERVANT.2.def"));
	mod.dispatch.addDefinition("C_START_SERVANT_ACTIVE_SKILL", 1, path.join(__dirname, "defs", "C_START_SERVANT_ACTIVE_SKILL.1.def"));
	mod.dispatch.addDefinition("C_START_SERVANT_ACTIVE_SKILL", 2, path.join(__dirname, "defs", "C_START_SERVANT_ACTIVE_SKILL.2.def"));
	mod.dispatch.addDefinition("S_START_COOLTIME_SERVANT_SKILL", 1, path.join(__dirname, "defs", "S_START_COOLTIME_SERVANT_SKILL.1.def"));

	mod.dispatch.addDefinition("S_UPDATE_SERVANT_INFO", 1, path.join(__dirname, "defs", "S_UPDATE_SERVANT_INFO.1.def"));
	mod.game.initialize("inventory");

	let characterId = null;
	let playerLoc = null;
	let playerW = null;
	let petGameId = null;
	let petSummoned = false;
	let newServant = null;
	let mainServant = null;
	let petSkillTimeout = null;
	let petSkillCooldown = false;

	mod.command.add("pet", {
		"save": () => {
			if (newServant) {
				saveServant();
			} else {
				mod.command.message("You must summon a pet first before you can save it.");
			}
		},
		"feed": arg => {
			const n = Number(arg);
			if (isNaN(n) || n >= 100 || n < 0) {
				mod.command.message("Pet Stamina % must be set between 1 and 99.");
			} else {
				mod.settings.feedWhenBelow = n;
				mod.command.message(`Auto feed is now set to <font color="#5da8ce">${n}%</font>`);
			}
		},
		"on": () => {
			mod.settings.characters[characterId].enabled = true;
			mod.command.message(`Module <font color="#00FF00">Enabled</font> for <font color="#00BFFF">${ mod.settings.characters[characterId].name }</font>`);
		},
		"off": () => {
			mod.settings.characters[characterId].enabled = false;
			mod.command.message(`Module <font color="#FF0000">Disabled</font> for <font color="#00BFFF">${ mod.settings.characters[characterId].name }</font>`);
		},
		"$none": () => {
			mod.settings.enabled = !mod.settings.enabled;
			mod.command.message(`Auto Pet is now ${mod.settings.enabled ? "<font color=\"#5dce6a\">Enabled</font>" : "<font color=\"#dc4141\">Disabled</font>"}.`);
		}
	});

	mod.hook("S_LOGIN", 14, event => {
		characterId = `${event.playerId}_${event.serverId}`;
		if (mod.settings.characters[characterId] == undefined) {
			mod.settings.characters[characterId] = {
				"name": event.name,
				"enabled": true,
				"bondSkill": null
			};
		}
	});

	mod.hook("C_PLAYER_LOCATION", 5, event => {
		playerLoc = event.loc;
		playerW = event.w;
	});

	mod.hook("S_REQUEST_DESPAWN_SERVANT", 1, event => {
		if (event.gameId === petGameId) {
			petSummoned = false;
			petGameId = null;
			newServant = null;
			mod.clearTimeout(petSkillTimeout);
		}
	});

	mod.hook("S_REQUEST_SPAWN_SERVANT", 4, (event) => {
		if (mod.game.me.is(event.ownerId)) {
			newServant = new Servant(event);
			petSummoned = true;
			petGameId = event.gameId;
			if (mainServant == null || newServant.ID != mainServant.ID) {
				mod.command.message(`Use 'pet save' to save <font color="#30e785">"${event.name}"</font> as your default pet`);
			}
			const pet = mod.settings.characters[characterId];
			if (mod.settings.enabled && pet && pet.enabled && pet.bondSkill) {
				usePetSkill();
			}
		}
	});

	mod.hook("C_START_SERVANT_ACTIVE_SKILL", mod.majorPatchVersion >= 100 ? 2 : 1, { "filter": { "fake": null } }, event => {
		mod.settings.characters[characterId].bondSkill = event.skill;
	});

	mod.hook("S_START_COOLTIME_SERVANT_SKILL", 1, (event) => {
		petSkillCooldown = true;
		mod.clearTimeout(petSkillTimeout);
		const pet = mod.settings.characters[characterId];
		if (mod.settings.enabled && pet && pet.enabled && pet.bondSkill) {
			petSkillTimeout = mod.setTimeout(() => {
				petSkillCooldown = false;
				usePetSkill();
			}, event.cooltime + 100);
		}
	});

	mod.game.me.on("resurrect", () => {
		const pet = mod.settings.characters[characterId];
		if (mod.settings.enabled && pet && pet.enabled && pet.bondSkill) {
			usePetSkill();
		}
	});

	mod.hook("S_UPDATE_SERVANT_INFO", 1, (event) => {
		if (mainServant && event.dbid == mainServant.UniqueID) {
			const energy = (event.energy / 300) * 100;
			if (mod.settings.enabled && petSummoned && !mod.game.me.inCombat && energy <= mod.settings.feedWhenBelow) {
				feedPet();
			}
		}
	});

	mod.hook("S_VISIT_NEW_SECTION", 1, () => {
		const key = `${mod.game.me.serverId}_${mod.game.me.playerId}`;
		const playerPet = mod.settings.servantsList[key];
		if (playerPet != undefined) {
			mainServant = new Servant(playerPet);
		}
		if (mainServant && !petSummoned && mod.settings.enabled) {
			summonPet();
		}
	});

	function summonPet() {
		mod.send("C_REQUEST_SPAWN_SERVANT", mod.majorPatchVersion >= 100 ? 2 : 1, {
			"servantId": mainServant.ID,
			"uniqueId": mainServant.UniqueID,
			"unk": 0
		});
	}

	function usePetSkill() {
		if (petSummoned && mod.game.me.alive && !petSkillCooldown) {
			mod.send("C_START_SERVANT_ACTIVE_SKILL", mod.majorPatchVersion >= 100 ? 2 : 1, {
				"gameId": petGameId,
				"skill": mod.settings.characters[characterId].bondSkill
			});
		}
	}

	function saveServant() {
		const key = `${mod.game.me.serverId}_${mod.game.me.playerId}`;
		mod.settings.servantsList[key] = newServant.stringify();
		mod.command.message(`Saved <font color="#30e785">"${newServant.Name}"</font> as your default pet."`);
		mainServant = newServant;
	}

	function feedPet() {
		const foods = mod.settings.petFood;
		let foodFound = false;
		foods.forEach(item => {
			const foodItem = mod.game.inventory.findInBagOrPockets(item.id);
			if (foodItem) {
				foodFound = true;
				mod.send("C_USE_ITEM", 3, {
					"gameId": mod.game.me.gameId,
					"id": foodItem.id,
					"dbid": foodItem.dbid,
					"target": 0,
					"amount": 1,
					"dest": 0,
					"loc": playerLoc,
					"w": playerW,
					"unk1": 0,
					"unk2": 0,
					"unk3": 0,
					"unk4": true
				});
				return;
			}
		});
		if (!foodFound) {
			mod.command.message("You don't have any pet food in inventory!");
		}
	}
};