Implement smart eat tweak

Closes #583

README.md

@@ -240,6 +240,7 @@ All changes are toggleable via config files.
 * **Skip Credits:** Skips the credits screen after the player goes through the end podium portal
 * **Skip Missing Registry Entries Screen:** Automatically confirms the 'Missing Registry Entries' screen on world load
 * **Sleeping Time:** Determines at which time of day sleeping is allowed in ticks (0 - 24000)
+* **Smart Eat:** Requires the hunger bar to be missing food points equal to or more than the amount restored by the food
 * **Smooth Scrolling:** Adds smooth scrolling to every in-game list
 * **Soulbound Vexes:** Summoned vexes will also die when their summoner is killed
 * **Spawn Caps:** Sets maximum spawning limits for different entity types

src/main/java/mod/acgaming/universaltweaks/config/UTConfigTweaks.java

@@ -1133,6 +1133,11 @@ public static class ItemsCategory
             })
         public String[] utCustomUseDurations = new String[] {};
 
+        @Config.RequiresMcRestart
+        @Config.Name("Smart Eat")
+        @Config.Comment("Requires the hunger bar to be missing food points equal to or more than the amount restored by the food")
+        public boolean utSmartEatToggle = false;
+
         @Config.Name("Super Hot Torch")
         @Config.Comment("Enables one-time ignition of entities by hitting them with a torch")
         public boolean utSuperHotTorchToggle = false;

src/main/java/mod/acgaming/universaltweaks/core/UTLoadingPlugin.java

@@ -126,7 +126,7 @@ public class UTLoadingPlugin implements IFMLLoadingPlugin, IEarlyMixinLoader
             put("mixins.tweaks.items.attackcooldown.server.json", () -> UTConfigTweaks.ITEMS.ATTACK_COOLDOWN.utAttackCooldownToggle);
             put("mixins.tweaks.items.bottle.json", () -> UTConfigTweaks.ITEMS.utGlassBottlesConsumeWaterSource);
             put("mixins.tweaks.items.bucket.json", () -> UTConfigTweaks.ITEMS.utPreventBucketPlacingInPortal);
-            put("mixins.tweaks.items.eating.json", () -> UTConfigTweaks.ITEMS.utAlwaysEatToggle);
+            put("mixins.tweaks.items.eating.json", () -> UTConfigTweaks.ITEMS.utAlwaysEatToggle || UTConfigTweaks.ITEMS.utSmartEatToggle);
             put("mixins.tweaks.items.hardcorebuckets.json", () -> UTConfigTweaks.ITEMS.utHardcoreBucketsToggle);
             put("mixins.tweaks.items.infinityallarrows.json", () -> UTConfigTweaks.ITEMS.INFINITY.utAllArrowsAreInfinite);
             put("mixins.tweaks.items.infinitymending.json", () -> UTConfigTweaks.ITEMS.INFINITY.utInfinityEnchantmentConflicts);

src/main/java/mod/acgaming/universaltweaks/tweaks/items/eating/mixin/UTSmartEatMixin.java

@@ -0,0 +1,29 @@
+package mod.acgaming.universaltweaks.tweaks.items.eating.mixin;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.ItemFood;
+import net.minecraft.item.ItemStack;
+
+import com.llamalad7.mixinextras.sugar.Local;
+import mod.acgaming.universaltweaks.config.UTConfigTweaks;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@Mixin(ItemFood.class)
+public abstract class UTSmartEatMixin
+{
+    @Shadow
+    public boolean alwaysEdible;
+
+    @Shadow
+    public abstract int getHealAmount(ItemStack stack);
+
+    @Redirect(method = "onItemRightClick", at = @At(value = "INVOKE", target = "Lnet/minecraft/entity/player/EntityPlayer;canEat(Z)Z"))
+    public boolean utSmartEat(EntityPlayer player, boolean ignoreHunger, @Local ItemStack itemstack)
+    {
+        if (!UTConfigTweaks.ITEMS.utSmartEatToggle || this.alwaysEdible) return player.canEat(true);
+        return player.canEat(false) && this.getHealAmount(itemstack) <= (20 - player.getFoodStats().getFoodLevel());
+    }
+}

src/main/resources/mixins.tweaks.items.eating.json

@@ -3,5 +3,5 @@
   "refmap": "universaltweaks.refmap.json",
   "minVersion": "0.8",
   "compatibilityLevel": "JAVA_8",
-  "mixins": ["UTAlwaysEatMixin"]
+  "mixins": ["UTAlwaysEatMixin", "UTSmartEatMixin"]
 }