feat: ✨ add automatic eater plugin

lib/plugins/eater.js

@@ -0,0 +1,113 @@
+let cfg = {}
+let bot = {}
+let isEating = false
+
+function callbackHandle(err) {
+    if (err) console.error(err)
+}
+
+function eat(callback) {
+    isEating = true
+
+    const foodNames = require('minecraft-data')(bot.version).foodsArray.map((item) => item.name)
+
+    let available_food = bot.inventory
+        .items()
+        .filter((item) => foodNames.includes(item.name))
+
+    if (available_food.length === 0 || !available_food) {
+        isEating = false
+        return callback(new Error('No food found.'))
+    }
+
+    if (cfg.eat.bannedFood.length > 0) {
+        available_food = available_food.filter(
+            (item) => !cfg.eat.bannedFood.includes(item.name)
+        )
+    }
+    let priority = cfg.eat.priority
+    let best_food = available_food.reduce((prev, current) => (prev[priority] > current[priority]) ? prev : current)
+
+    if (!best_food) {
+        isEating = false
+        return callback(new Error('No best food has been found.'))
+    }
+
+    bot.emit('eat_start')
+
+    bot.equip(best_food, 'hand', function (error) {
+        if (error) {
+            console.error(error)
+            isEating = false
+            bot.emit('eat_stop')
+        } else {
+            bot.consume(function (err) {
+                if (err) {
+                    console.error(err)
+                    isEating = false
+                    bot.emit('eat_stop')
+                    return callback(err)
+                } else {
+                    isEating = false
+                    bot.emit('eat_stop')
+                    callback(null)
+                    if (!bot.food === 20) eat(callbackHandle)
+                }
+            })
+        }
+    })
+}
+
+function checkFood() {
+    console.info("eater: "
+        // , " status: ", !isEating
+        , cfg.eat.auto && "auto"
+        , bot.food < cfg.eat.startAt && "hungry"
+        , "hunger:", bot.food
+        , "at:", cfg.eat.startAt)
+    if (
+        !isEating
+        && cfg.eat.auto
+        && bot.food < cfg.eat.startAt
+    ) {
+        if (
+            (bot.pathfinder
+                && !(bot.pathfinder.isMining() || bot.pathfinder.isBuilding())
+                // TODO implement better idle state
+            ) || true // idle most likely
+        ) {
+            eat(callbackHandle)
+        }
+    }
+}
+
+function resetEat(value) {
+    // to prevent the plugin from breaking if the bot gets killed while eating btw
+    isEating = !!value // false
+}
+
+const load = (config) => {
+    cfg = config
+    bot = cfg.bot
+    cfg.eat = {
+        priority: 'saturation', //'foodPoints', //
+        // startAt: 19, //anarchy
+        // startAt: 18,
+        startAt: 14,
+        bannedFood: [
+            "enchanted_golden_apple", "golden_apple", "pufferfish", "chorus_fruit"
+        ],
+        auto: true
+    }
+
+    bot.on('health', checkFood)
+    bot.on('spawn', resetEat)
+
+}
+
+const unload = () => {
+    bot.off('health', checkFood)
+    bot.off('spawn', resetEat)
+}
+
+module.exports = { load, unload, eat, resetEat }