PHP, Arduino And... Minecraft? Combining Minecraft with PHP!

This tutorial demonstrates building a real-world alarm system for a virtual Minecraft mansion using PHP and Arduino. Let's explore how it works.

Key Concepts:

• Minecraft Redstone Circuitry: A virtual circuit within Minecraft, using Redstone (a game resource) and Command Blocks (to execute server commands), monitors a virtual door.
• Minecraft Command Blocks and Server Logging: A Command Block continuously checks the door's state. Changes are logged as server messages.
• PHP Log File Monitoring: A PHP script, using the yosymfony/resource-watcher library, constantly monitors the Minecraft server log files for changes. It specifically looks for "open" or "closed" messages indicating door status alterations.
• Arduino Integration (Future): A planned follow-up will detail an Arduino-based alarm circuit triggered by the PHP script's detection of door changes.

Minecraft Setup:

The core Minecraft setup involves creating a Redstone circuit that continuously checks the door's state using a testforblock command within a Command Block. This command, along with its coordinates (e.g., /testforblock 191 67 -194 wooden_door 3), checks for a specific block type and orientation at a given location. A second Command Block whispers a message ("open" or "closed") to the server log, depending on the door's status. An ingenious Redstone clock ensures continuous monitoring.

PHP Script:

The PHP script uses the yosymfony/resource-watcher library to monitor the Minecraft server log file for updates. It then parses the new log lines, searching for "open" or "closed" messages from the Minecraft Command Blocks. This provides real-time feedback on the door's state.

The code snippet shows how the script utilizes Finder to locate the log file, ResourceWatcher to detect changes, and then processes the log lines to identify "open" and "closed" status updates.

This project cleverly bridges the gap between a virtual world and the physical world, showcasing the potential of combining game mechanics with programming and hardware. The Arduino integration in the next part will complete the real-world alarm functionality. The code is available at https://www.php.cn/link/1357bcf2d4321bb322e9ae46a462ef4a.

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