From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: etil2jz <81570777+etil2jz@users.noreply.github.com>
Date: Wed, 29 Jun 2022 02:49:45 +0200
Subject: [PATCH] Faster Sheep.getOffspringColor

Original license: MIT
Original project: https://github.com/fxmorin/carpet-fixes

Copyright (c) 2020 Fx Morin

diff --git a/src/main/java/net/minecraft/world/entity/animal/Sheep.java b/src/main/java/net/minecraft/world/entity/animal/Sheep.java
index ed289bdc0455e737c79e8630e1cdfdeb957e2c03..4215ff3e536da3384f75cabbcecb82da81ce4d65 100644
--- a/src/main/java/net/minecraft/world/entity/animal/Sheep.java
+++ b/src/main/java/net/minecraft/world/entity/animal/Sheep.java
@@ -367,21 +367,56 @@ public class Sheep extends Animal implements Shearable {
         return super.finalizeSpawn(world, difficulty, spawnReason, entityData, entityNbt);
     }
 
+    // Mirai start
+    private static DyeColor properDye(DyeColor firstColor, DyeColor secondColor) {
+        if (firstColor.equals(secondColor)) return firstColor;
+        switch(firstColor) {
+            case WHITE -> {
+                switch(secondColor) {
+                    case BLUE -> {return DyeColor.LIGHT_BLUE;}
+                    case GRAY -> {return DyeColor.LIGHT_GRAY;}
+                    case BLACK -> {return DyeColor.GRAY;}
+                    case GREEN -> {return DyeColor.LIME;}
+                    case RED -> {return DyeColor.PINK;}
+                }
+            }
+            case BLUE -> {
+                switch(secondColor) {
+                    case WHITE -> {return DyeColor.LIGHT_BLUE;}
+                    case GREEN -> {return DyeColor.CYAN;}
+                    case RED -> {return DyeColor.PURPLE;}
+                }
+            }
+            case RED -> {
+                switch(secondColor) {
+                    case YELLOW -> {return DyeColor.ORANGE;}
+                    case WHITE -> {return DyeColor.PINK;}
+                    case BLUE -> {return DyeColor.PURPLE;}
+                }
+            }
+            case GREEN -> {
+                switch(secondColor) {
+                    case BLUE -> {return DyeColor.CYAN;}
+                    case WHITE -> {return DyeColor.LIME;}
+                }
+            }
+            case YELLOW -> {if (secondColor.equals(DyeColor.RED)) return DyeColor.ORANGE;}
+            case PURPLE -> {if (secondColor.equals(DyeColor.PINK)) return DyeColor.MAGENTA;}
+            case PINK -> {if (secondColor.equals(DyeColor.PURPLE)) return DyeColor.MAGENTA;}
+            case GRAY -> {if (secondColor.equals(DyeColor.WHITE)) return DyeColor.LIGHT_GRAY;}
+            case BLACK -> {if (secondColor.equals(DyeColor.WHITE)) return DyeColor.GRAY;}
+        }
+        return null;
+    }
+
     private DyeColor getOffspringColor(Animal firstParent, Animal secondParent) {
-        DyeColor enumcolor = ((Sheep) firstParent).getColor();
-        DyeColor enumcolor1 = ((Sheep) secondParent).getColor();
-        CraftingContainer inventorycrafting = Sheep.makeContainer(enumcolor, enumcolor1);
-        Optional<Item> optional = this.level.getRecipeManager().getRecipeFor(RecipeType.CRAFTING, inventorycrafting, this.level).map((recipecrafting) -> { // CraftBukkit - decompile error
-            return recipecrafting.assemble(inventorycrafting);
-        }).map(ItemStack::getItem);
-
-        Objects.requireNonNull(DyeItem.class);
-        optional = optional.filter(DyeItem.class::isInstance);
-        Objects.requireNonNull(DyeItem.class);
-        return (DyeColor) optional.map(DyeItem.class::cast).map(DyeItem::getDyeColor).orElseGet(() -> {
-            return this.level.random.nextBoolean() ? enumcolor : enumcolor1;
-        });
+        DyeColor firstColor = ((Sheep)firstParent).getColor();
+        DyeColor secondColor = ((Sheep)secondParent).getColor();
+        DyeColor col = properDye(firstColor,secondColor);
+        if (col == null) col = this.level.random.nextBoolean() ? firstColor : secondColor;
+        return col;
     }
+    // Mirai end
 
     private static CraftingContainer makeContainer(DyeColor firstColor, DyeColor secondColor) {
         CraftingContainer inventorycrafting = new CraftingContainer(new AbstractContainerMenu((MenuType) null, -1) {