1 files changed, 61 insertions, 0 deletions
diff --git a/src/main/java/me/shedaniel/rei/server/RecipeGridAligner.java b/src/main/java/me/shedaniel/rei/server/RecipeGridAligner.java
new file mode 100644
index 000000000..5ac9bbab8
--- /dev/null
+++ b/src/main/java/me/shedaniel/rei/server/RecipeGridAligner.java
@@ -0,0 +1,61 @@
+package me.shedaniel.rei.server;
+
+import net.minecraft.recipe.Recipe;
+import net.minecraft.recipe.ShapedRecipe;
+import net.minecraft.util.math.MathHelper;
+
+import java.util.Iterator;
+
+public interface RecipeGridAligner<T> {
+    default void alignRecipeToGrid(int craftingGridWidth, int craftingGridHeight, int resultSlotIndex, Recipe<?> recipe, Iterator<T> iterator_1, int int_4) {
+        int recipeWidth = craftingGridWidth;
+        int recipeHeight = craftingGridHeight;
+        if (recipe instanceof ShapedRecipe) {
+            ShapedRecipe shapedRecipe = (ShapedRecipe) recipe;
+            recipeWidth = shapedRecipe.getWidth();
+            recipeHeight = shapedRecipe.getHeight();
+        }
+        
+        int slotId = 0;
+        
+        for (int int_8 = 0; int_8 < craftingGridHeight; ++int_8) {
+            if (slotId == resultSlotIndex) {
+                ++slotId;
+            }
+            
+            boolean boolean_1 = (float) recipeHeight < (float) craftingGridHeight / 2.0F;
+            int int_9 = MathHelper.floor((float) craftingGridHeight / 2.0F - (float) recipeHeight / 2.0F);
+            if (boolean_1 && int_9 > int_8) {
+                slotId += craftingGridWidth;
+                ++int_8;
+            }
+            
+            for (int int_10 = 0; int_10 < craftingGridWidth; ++int_10) {
+                if (!iterator_1.hasNext()) {
+                    return;
+                }
+                
+                boolean_1 = (float) recipeWidth < (float) craftingGridWidth / 2.0F;
+                int_9 = MathHelper.floor((float) craftingGridWidth / 2.0F - (float) recipeWidth / 2.0F);
+                int int_11 = recipeWidth;
+                boolean boolean_2 = int_10 < recipeWidth;
+                if (boolean_1) {
+                    int_11 = int_9 + recipeWidth;
+                    boolean_2 = int_9 <= int_10 && int_10 < int_9 + recipeWidth;
+                }
+                
+                if (boolean_2) {
+                    this.acceptAlignedInput(iterator_1, slotId, int_4, int_8, int_10);
+                } else if (int_11 == int_10) {
+                    slotId += craftingGridWidth - int_10;
+                    break;
+                }
+                
+                ++slotId;
+            }
+        }
+        
+    }
+    
+    void acceptAlignedInput(Iterator<T> var1, int var2, int var3, int var4, int var5);
+}
+\ No newline at end of file