Fix Heaters not checking blocks when first placed

Author: falseresync

src/main/java/falseresync/vivatech/common/block/HeaterBlock.java

@@ -12,6 +12,7 @@
 import net.minecraft.block.entity.BlockEntityTicker;
 import net.minecraft.block.entity.BlockEntityType;
 import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Direction;
 import net.minecraft.world.World;
 import org.jetbrains.annotations.Nullable;
 
@@ -37,6 +38,18 @@ protected void neighborUpdate(BlockState state, World world, BlockPos pos, Block
         }
     }
 
+    @Override
+    protected void onBlockAdded(BlockState state, World world, BlockPos pos, BlockState oldState, boolean notify) {
+        super.onBlockAdded(state, world, pos, oldState, notify);
+        if (!world.isClient) {
+            if (world.getBlockEntity(pos) instanceof HeaterBlockEntity heater) {
+                for (var direction : Direction.values()) {
+                    heater.scan(pos.offset(direction));
+                }
+            }
+        }
+    }
+
     @Override
     public BlockEntity createBlockEntity(BlockPos pos, BlockState state) {
         return new HeaterBlockEntity(pos, state);