Shovel API

src/main/java/ru/bclib/api/ShovelAPI.java

@@ -0,0 +1,20 @@
+package ru.bclib.api;
+
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.state.BlockState;
+import ru.bclib.mixin.common.ShovelItemAccessor;
+
+import java.util.Map;
+
+public class ShovelAPI {
+	/**
+	 * Will add left-click behaviour to shovel: when it is targeting cetrain {@link Block} it will be converting to new
+	 * {@link BlockState} on usage. Example: grass converting to path.
+	 * @param target {@link Block} that will be converted.
+	 * @param convert {@link BlockState} to convert block into.
+	 */
+	public static void addShovelBehaviour(Block target, BlockState convert) {
+		Map<Block, BlockState> map = ShovelItemAccessor.bclib_getFlattenables();
+		map.put(target, convert);
+	}
+}

src/main/java/ru/bclib/mixin/common/ShovelItemAccessor.java

@@ -0,0 +1,17 @@
+package ru.bclib.mixin.common;
+
+import net.minecraft.world.item.ShovelItem;
+import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.block.state.BlockState;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+import java.util.Map;
+
+@Mixin(ShovelItem.class)
+public interface ShovelItemAccessor {
+	@Accessor("FLATTENABLES")
+	static Map<Block, BlockState> bclib_getFlattenables() {
+		throw new AssertionError("@Accessor dummy body called");
+	}
+}

src/main/resources/bclib.mixins.common.json

@@ -32,6 +32,7 @@
 		"DimensionTypeMixin",
 		"RecipeManagerMixin",
 		"RecipeManagerMixin",
+		"ShovelItemAccessor",
 		"BoneMealItemMixin",
 		"CraftingMenuMixin",
 		"shears.SheepMixin",
@@ -39,6 +40,7 @@
 		"ServerLevelMixin",
 		"BiomeSourceMixin",
 		"AnvilBlockMixin",
+		"HoeItemAccessor",
 		"AnvilMenuMixin",
 		"TagLoaderMixin",
 		"MainMixin"