scan tool fixes (#719) port

Fix slab/domum handling and water handling and grass/dirt path handling and stairs handling

Author: Raycoms

src/main/java/com/ldtteam/structurize/operations/RemoveBlockOperation.java

@@ -6,6 +6,7 @@
 import net.minecraft.server.level.ServerLevel;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.level.block.Blocks;
 
 /**
  * Operation for removing one type of block.
@@ -37,6 +38,10 @@ protected void apply(final ServerLevel world, final BlockPos position)
         {
             storage.addPreviousDataFor(position, world);
             world.removeBlock(position, false);
+            if (!world.getFluidState(position).isEmpty())
+            {
+                world.setBlock(position, Blocks.AIR.defaultBlockState(), 3);
+            }
             storage.addPostDataFor(position, world);
         }
     }

src/main/java/com/ldtteam/structurize/placement/handlers/placement/PlacementHandlers.java

@@ -23,10 +23,7 @@
 import net.minecraft.world.level.block.*;
 import net.minecraft.world.level.block.entity.BlockEntity;
 import net.minecraft.world.level.block.state.BlockState;
-import net.minecraft.world.level.block.state.properties.BedPart;
-import net.minecraft.world.level.block.state.properties.BlockStateProperties;
-import net.minecraft.world.level.block.state.properties.DoubleBlockHalf;
-import net.minecraft.world.level.block.state.properties.DripstoneThickness;
+import net.minecraft.world.level.block.state.properties.*;
 import net.minecraft.world.phys.AABB;
 import org.jetbrains.annotations.Nullable;
 
@@ -341,9 +338,11 @@ public List<ItemStack> getRequiredItems(
           @Nullable final CompoundTag tileEntityData,
           final boolean complete)
         {
-            final List<ItemStack> itemList = new ArrayList<>();
-            itemList.add(new ItemStack(Blocks.DIRT));
-            return itemList;
+            if (complete)
+            {
+                return Collections.singletonList(new ItemStack(blockState.getBlock()));
+            }
+            return Collections.singletonList(new ItemStack(Blocks.DIRT));
         }
     }
 
@@ -647,9 +646,11 @@ public List<ItemStack> getRequiredItems(
           @Nullable final CompoundTag tileEntityData,
           final boolean complete)
         {
-            final List<ItemStack> itemList = new ArrayList<>();
-            itemList.add(new ItemStack(Blocks.DIRT, 1));
-            return itemList;
+            if (complete)
+            {
+                return Collections.singletonList(new ItemStack(blockState.getBlock()));
+            }
+            return Collections.singletonList(new ItemStack(Blocks.DIRT));
         }
     }
 
@@ -686,6 +687,10 @@ public List<ItemStack> getRequiredItems(
           @Nullable final CompoundTag tileEntityData,
           final boolean complete)
         {
+            if (complete)
+            {
+                return Collections.singletonList(new ItemStack(blockState.getBlock()));
+            }
             return new ArrayList<>();
         }
     }