Replace Blocks Only When They Meet Specific Conditions

Conditional Block Replacement

Reliable Replacer can check block properties and neighboring blocks before making a swap. This lets you replace blocks only when they meet certain conditions.

Steps

1. Create or open a JSON file in config/reliable_replacer.

2. Add a replacement rule and include condition checks such as:

• Block state properties (for example, only replace an open door, or a log facing a certain direction)
• Neighbor detection (only replace a block if it sits next to a specific block type)

3. Save the file and run /reload.

4. The mod will only swap blocks that match all your conditions.

Tips

• Block state checks are useful for replacing only certain variants of a block.
• Neighbor detection helps create natural-looking patterns—for instance, replacing stone only when it touches water.
• You can stack multiple conditions in one rule for very specific replacements.
• This feature is powerful for creating custom structures or preventing replacements in certain contexts.