improve obstruction messages

src/main/java/quimufu/structure_item/MyItem.java

@@ -200,9 +200,9 @@ public class MyItem extends Item {
 
                 Vec3i size = x.getSize();
                 switch (rotation) {
-                    case CLOCKWISE_90 -> loc = loc.add(new Vec3i(size.getX()-1, 0, 0));
+                    case CLOCKWISE_90 -> loc = loc.add(new Vec3i(size.getX() - 1, 0, 0));
-                    case CLOCKWISE_180 -> loc = loc.add(new Vec3i(size.getX()-1, 0, size.getZ()-1));
+                    case CLOCKWISE_180 -> loc = loc.add(new Vec3i(size.getX() - 1, 0, size.getZ() - 1));
-                    case COUNTERCLOCKWISE_90 -> loc = loc.add(new Vec3i(0, 0, size.getZ()-1));
+                    case COUNTERCLOCKWISE_90 -> loc = loc.add(new Vec3i(0, 0, size.getZ() - 1));
                 }
             } else if (tag.contains("offsetV2", 10)) {
                 Direction direction = c.getSide().getOpposite();
@@ -255,16 +255,21 @@ public class MyItem extends Item {
                     .setSize(x.getSize())
                     .setMirror(BlockMirror.NONE)
                     .setRotation(rotation);
-            boolean success = false;
             try {
-                if (x.place((ServerWorld) c.getWorld(), loc, BlockPos.ORIGIN, ps, c.getWorld().getRandom(), 2))
+                if (x.place((ServerWorld) c.getWorld(), loc, BlockPos.ORIGIN, ps, c.getWorld().getRandom(), 2)) {
-                    success = true;
-            } catch (PlacementNotAllowedException ignored) {
-            }
-            if (success) {
                     c.getStack().decrement(1);
                     return ActionResult.SUCCESS;
                 }
+            } catch (PlacementNotAllowedException placementNotAllowedException) {
+                Text message =
+                        Text.translatable("items.structure.spawner.invalid.location.reason",
+                                placementNotAllowedException.getName(),
+                                Text.literal(String.valueOf(placementNotAllowedException.getPos().getX())),
+                                Text.literal(String.valueOf(placementNotAllowedException.getPos().getY())),
+                                Text.literal(String.valueOf(placementNotAllowedException.getPos().getZ())));
+                sendPlayer(player, message);
+                return ActionResult.FAIL;
+            }
             Text message =
                     Text.translatable("items.structure.spawner.invalid.location");
             sendPlayer(player, message);

src/main/java/quimufu/structure_item/MyPlacementSettings.java

@@ -17,7 +17,6 @@ import net.minecraft.world.World;
 import net.minecraft.world.WorldView;
 import org.jetbrains.annotations.Nullable;
 
-import java.util.ArrayList;
 import java.util.List;
 
 public class MyPlacementSettings extends StructurePlacementData {
@@ -75,12 +74,13 @@ public class MyPlacementSettings extends StructurePlacementData {
             if (currentBlockInfo != null && World.isValid(posToCheck = currentBlockInfo.pos())) {
                 for (Entity e : entitiesWithinAABB) {
                     if (e.getBoundingBox().intersects(new Box(posToCheck))) {
-                        throw new PlacementNotAllowedException();
+                        throw new PlacementNotAllowedException(e.getName(), posToCheck);
                     }
                 }
                 Block blockToCheck = world.getBlockState(posToCheck).getBlock();
-                if (blacklist.contains(blockToCheck))
+                if (blacklist.contains(blockToCheck)) {
-                    throw new PlacementNotAllowedException();
+                    throw new PlacementNotAllowedException(blockToCheck.getName(), posToCheck);
+                }
             }
             return currentBlockInfo;
         }

src/main/java/quimufu/structure_item/PlacementNotAllowedException.java

@@ -1,4 +1,22 @@
 package quimufu.structure_item;
 
-public class PlacementNotAllowedException extends RuntimeException{
+import net.minecraft.text.Text;
+import net.minecraft.util.math.BlockPos;
+
+public class PlacementNotAllowedException extends RuntimeException {
+    private final Text name;
+    private final BlockPos pos;
+
+    public PlacementNotAllowedException(Text name, BlockPos pos) {
+        this.name = name;
+        this.pos = pos;
+    }
+
+    public BlockPos getPos() {
+        return pos;
+    }
+
+    public Text getName() {
+        return name;
+    }
 }

src/main/resources/assets/structure_item/lang/en_us.json

@@ -1,5 +1,6 @@
 {
-  "items.structure.spawner.invalid.block.clicked": "Digga %s is net %s, maan.",
+  "items.structure.spawner.invalid.block.clicked": "Can only be placed on %2$s, not %1$s.",
+  "items.structure.spawner.invalid.location.reason": "%s is in the way at %s, %s, %s!",
   "items.structure.spawner.invalid.location": "Something is in the way!",
   "items.structure.spawner.invalid.structure.name": "Invalid structure name",
   "items.structure.spawner.structure.nonexistent": "Structure: %s does not exist",