Purpur/patches/server/0242-Configurable-food-attributes.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: BillyGalbreath <Blake.Galbreath@Gmail.com>
Date: Tue, 18 Jan 2022 04:51:51 -0600
Subject: [PATCH] Configurable food attributes


diff --git a/src/main/java/net/minecraft/world/food/FoodProperties.java b/src/main/java/net/minecraft/world/food/FoodProperties.java
index 9967ba762567631f2bdb1e4f8fe16a13ea927b46..6c945ae8fe8b1517e312c688f829fab41f12d9f4 100644
--- a/src/main/java/net/minecraft/world/food/FoodProperties.java
+++ b/src/main/java/net/minecraft/world/food/FoodProperties.java
@@ -2,15 +2,22 @@ package net.minecraft.world.food;
 
 import com.google.common.collect.Lists;
 import com.mojang.datafixers.util.Pair;
+
+import java.util.ArrayList;
 import java.util.List;
 import net.minecraft.world.effect.MobEffectInstance;
 
 public class FoodProperties {
-    private final int nutrition;
-    private final float saturationModifier;
-    private final boolean isMeat;
-    private final boolean canAlwaysEat;
-    private final boolean fastFood;
+    // Purpur start
+    private int nutrition; public void setNutrition(int nutrition) { this.nutrition = nutrition; }
+    private float saturationModifier; public void setSaturationModifier(float saturation) { this.saturationModifier = saturation; }
+    private boolean isMeat; public void setIsMeat(boolean isMeat) { this.isMeat = isMeat; }
+    private boolean canAlwaysEat; public void setCanAlwaysEat(boolean canAlwaysEat) { this.canAlwaysEat = canAlwaysEat; }
+    private boolean fastFood; public void setFastFood(boolean isFastFood) { this.fastFood = isFastFood; }
+    public FoodProperties copy() {
+        return new FoodProperties(this.nutrition, this.saturationModifier, this.isMeat, this.canAlwaysEat, this.fastFood, new ArrayList<>(this.effects));
+    }
+    // Purpur end
     private final List<Pair<MobEffectInstance, Float>> effects;
 
     FoodProperties(int hunger, float saturationModifier, boolean meat, boolean alwaysEdible, boolean snack, List<Pair<MobEffectInstance, Float>> statusEffects) {
diff --git a/src/main/java/net/minecraft/world/food/Foods.java b/src/main/java/net/minecraft/world/food/Foods.java
index b16d9e2eaa589f19c563ee70b1a56d67dbcdecb0..71beab673f04cd051c46ea37f8c847316885d38d 100644
--- a/src/main/java/net/minecraft/world/food/Foods.java
+++ b/src/main/java/net/minecraft/world/food/Foods.java
@@ -4,6 +4,9 @@ import net.minecraft.world.effect.MobEffectInstance;
 import net.minecraft.world.effect.MobEffects;
 
 public class Foods {
+    public static final java.util.Map<String, FoodProperties> ALL_PROPERTIES = new java.util.HashMap<>(); // Purpur
+    public static final java.util.Map<String, FoodProperties> DEFAULT_PROPERTIES = new java.util.HashMap<>(); // Purpur
+
     public static final FoodProperties APPLE = (new FoodProperties.Builder()).nutrition(4).saturationMod(0.3F).build();
     public static final FoodProperties BAKED_POTATO = (new FoodProperties.Builder()).nutrition(5).saturationMod(0.6F).build();
     public static final FoodProperties BEEF = (new FoodProperties.Builder()).nutrition(3).saturationMod(0.3F).meat().build();
diff --git a/src/main/java/net/minecraft/world/item/Items.java b/src/main/java/net/minecraft/world/item/Items.java
index 31f5ed9dd1727eee24804a384817d2b76a45676b..5fbb13ebef0ca66419f3e5006d19e4a5918a038a 100644
--- a/src/main/java/net/minecraft/world/item/Items.java
+++ b/src/main/java/net/minecraft/world/item/Items.java
@@ -1309,6 +1309,13 @@ public class Items {
             ((BlockItem)item).registerBlocks(Item.BY_BLOCK, item);
         }
 
+        // Purpur start
+        if (item.getFoodProperties() != null) {
+            Foods.ALL_PROPERTIES.put(key.location().getPath(), item.getFoodProperties());
+            Foods.DEFAULT_PROPERTIES.put(key.location().getPath(), item.getFoodProperties().copy());
+        }
+        // Purpur end
+
         return Registry.register(BuiltInRegistries.ITEM, key, item);
     }
 }
diff --git a/src/main/java/org/purpurmc/purpur/PurpurConfig.java b/src/main/java/org/purpurmc/purpur/PurpurConfig.java
index bb5da073f0839a624ae4c86dfed20e56233ff5a3..51080c334f78796c75c906bdd79f5e2df94995a4 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurConfig.java
@@ -457,4 +457,75 @@ public class PurpurConfig {
         String setPattern = getString("settings.username-valid-characters", defaultPattern);
         usernameValidCharactersPattern = java.util.regex.Pattern.compile(setPattern == null || setPattern.isBlank() ? defaultPattern : setPattern);
     }
+
+    private static void foodSettings() {
+        ConfigurationSection properties = config.getConfigurationSection("settings.food-properties");
+        if (properties == null) {
+            config.addDefault("settings.food-properties", new HashMap<>());
+            return;
+        }
+
+        Map<MobEffect, Map<String, Object>> effectDefaults = new HashMap<>();
+        Map<String, Object> EFFECT_DEFAULT = Map.of(
+            "chance", 0.0F,
+            "duration", 0,
+            "amplifier", 0,
+            "ambient", false,
+            "visible", true,
+            "show-icon", true
+        );
+
+        properties.getKeys(false).forEach(foodKey -> {
+            FoodProperties food = Foods.ALL_PROPERTIES.get(foodKey);
+            if (food == null) {
+                PurpurConfig.log(Level.SEVERE, "Invalid food property: " + foodKey);
+                return;
+            }
+            FoodProperties foodDefaults = Foods.DEFAULT_PROPERTIES.get(foodKey);
+            food.setNutrition(properties.getInt(foodKey + ".nutrition", foodDefaults.getNutrition()));
+            food.setSaturationModifier((float) properties.getDouble(foodKey + ".saturation-modifier", foodDefaults.getSaturationModifier()));
+            food.setIsMeat(properties.getBoolean(foodKey + ".is-meat", foodDefaults.isMeat()));
+            food.setCanAlwaysEat(properties.getBoolean(foodKey + ".can-always-eat", foodDefaults.canAlwaysEat()));
+            food.setFastFood(properties.getBoolean(foodKey + ".fast-food", foodDefaults.isFastFood()));
+            ConfigurationSection effects = properties.getConfigurationSection(foodKey + ".effects");
+            if (effects != null) {
+                effectDefaults.clear();
+                foodDefaults.getEffects().forEach(pair -> {
+                    MobEffectInstance effect = pair.getFirst();
+                    effectDefaults.put(effect.getEffect(), Map.of(
+                            "chance", pair.getSecond(),
+                            "duration", effect.getDuration(),
+                            "amplifier", effect.getAmplifier(),
+                            "ambient", effect.isAmbient(),
+                            "visible", effect.isVisible(),
+                            "show-icon", effect.showIcon()
+                    ));
+                });
+                effects.getKeys(false).forEach(effectKey -> {
+                    MobEffect effect = BuiltInRegistries.MOB_EFFECT.get(new ResourceLocation(effectKey));
+                    if (effect == null) {
+                        PurpurConfig.log(Level.SEVERE, "Invalid food property effect for " + foodKey + ": " + effectKey);
+                        return;
+                    }
+
+                    Map<String, Object> effectDefault = effectDefaults.get(effect);
+                    if (effectDefault == null) {
+                        effectDefault = EFFECT_DEFAULT;
+                    }
+
+                    food.getEffects().removeIf(pair -> pair.getFirst().getEffect() == effect);
+                    float chance = (float) effects.getDouble(effectKey + ".chance", ((Float) effectDefault.get("chance")).doubleValue());
+                    int duration = effects.getInt(effectKey + ".duration", (int) effectDefault.get("duration"));
+                    if (chance <= 0.0F || duration < 0) {
+                        return;
+                    }
+                    int amplifier = effects.getInt(effectKey + ".amplifier", (int) effectDefault.get("amplifier"));
+                    boolean ambient = effects.getBoolean(effectKey + ".ambient", (boolean) effectDefault.get("ambient"));
+                    boolean visible = effects.getBoolean(effectKey + ".visible", (boolean) effectDefault.get("visible"));
+                    boolean showIcon = effects.getBoolean(effectKey + ".show-icon", (boolean) effectDefault.get("show-icon"));
+                    food.getEffects().add(Pair.of(new MobEffectInstance(effect, duration, amplifier, ambient, visible, showIcon), chance));
+                });
+            }
+        });
+    }
 }