make bookcases have enchantment power

.gitignore

@@ -25,3 +25,4 @@ run-data
 
 repo
 /src/main/generated/.cache/
+/src/generated/resources/.cache/

src/main/java/com/github/minecraftschurlimods/bibliocraft/content/bookcase/BookcaseBlock.java

@@ -6,6 +6,7 @@
 import net.minecraft.core.BlockPos;
 import net.minecraft.world.level.BlockGetter;
 import net.minecraft.world.level.Level;
+import net.minecraft.world.level.LevelReader;
 import net.minecraft.world.level.block.Rotation;
 import net.minecraft.world.level.block.entity.BlockEntity;
 import net.minecraft.world.level.block.state.BlockState;
@@ -14,6 +15,8 @@
 import net.minecraft.world.phys.shapes.VoxelShape;
 import org.jetbrains.annotations.Nullable;
 
+import java.util.stream.IntStream;
+
 public class BookcaseBlock extends BCFacingEntityBlock {
     private static final VoxelShape NORTH_SHAPE = ShapeUtil.combine(
             Shapes.box(0.0625, 0, 0.5, 0.9375, 0.0625, 0.9375),
@@ -61,4 +64,14 @@ public int getAnalogOutputSignal(BlockState state, Level level, BlockPos pos) {
         }
         return super.getAnalogOutputSignal(state, level, pos);
     }
+
+    @Override
+    public float getEnchantPowerBonus(BlockState state, LevelReader level, BlockPos pos) {
+        BlockEntity blockEntity = level.getBlockEntity(pos);
+        if (!(blockEntity instanceof BookcaseBlockEntity bcbe)) return super.getEnchantPowerBonus(state, level, pos);
+        return super.getEnchantPowerBonus(state, level, pos) + 0.125f * IntStream.range(0, bcbe.getContainerSize())
+                .mapToObj(bcbe::getItem)
+                .filter(e -> !e.isEmpty())
+                .count();
+    }
 }