Refactor Carpet's sticky blocks code (#1505)

refactor sticky blocks code

src/main/java/carpet/mixins/SlimeBlock_customStickyMixin.java

@@ -0,0 +1,26 @@
+package carpet.mixins;
+
+import org.spongepowered.asm.mixin.Mixin;
+
+import carpet.fakes.BlockBehaviourInterface;
+
+import net.minecraft.core.BlockPos;
+import net.minecraft.core.Direction;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.level.block.Blocks;
+import net.minecraft.world.level.block.SlimeBlock;
+import net.minecraft.world.level.block.state.BlockState;
+
+@Mixin(SlimeBlock.class)
+public class SlimeBlock_customStickyMixin implements BlockBehaviourInterface {
+
+    @Override
+    public boolean isSticky(BlockState state) {
+        return true;
+    }
+
+    @Override
+    public boolean isStickyToNeighbor(Level level, BlockPos pos, BlockState state, BlockPos neighborPos, BlockState neighborState, Direction dir, Direction moveDir) {
+        return !neighborState.is(Blocks.HONEY_BLOCK);
+    }
+}