feature: SimpleLogger class implementation

- add SimpleLogger class
- add LogLevel enum and current_log_level which serve to show only logs with level > to it
- add trace, debug, info, warning, error functions and their abbreviate form
- add _print function which is in charge to print the message
- the message can have timestamp and type being showed before the message [<type>  ][<timestamp>]: <message>
- add the possibility to let specify a file where to save the file in append mode

README.md

@@ -1 +1,113 @@
-# Godot-SimpleLogger
+# LoggerAddon Documentation
+
+A comprehensive logging system for Godot that provides multiple log levels, timestamps, and file persistence.
+
+## Features
+
+- Multiple log levels (TRACE, DEBUG, INFO, WARN, ERROR)
+- Optional timestamps for each log message
+- File logging with automatic directory creation
+- Both full and abbreviated function names
+- Configurable log filtering by level
+
+## Configuration
+
+### Inspector Properties
+
+| Property | Type | Default | Description |
+| --- | --- | --- | --- |
+| `current_log_level` | LogLevel | DEBUG | Minimum log level to display |
+| `enable_timestamp` | bool | true | Add timestamp to log messages |
+| `save_log` | bool | false | Save logs to file |
+| `folder` | String | "" | Directory for log files |
+| `log_filename` | String | "addons/Logs/data.log" | Log file path |
+
+## Log Levels
+
+From lowest to highest priority:
+
+- **TRACE**: Detailed debugging information
+- **DEBUG**: General debugging information
+- **INFO**: Informational messages
+- **WARN**: Warning messages (displayed in yellow)
+- **ERROR**: Error messages (displayed in red)
+
+## Usage
+
+### Full Function Names
+```gdscript
+Logger.trace("Detailed trace message", variable1, variable2)
+Logger.debug("Debug information", value)
+Logger.info("Application started")
+Logger.warning("This is a warning")
+Logger.error("An error occurred", error_code)
+```
+
+### Abbreviated Function Names
+```gdscript
+Logger.t("Trace", data)
+Logger.d("Debug", data)
+Logger.i("Info", data)
+Logger.w("Warning", data)
+Logger.e("Error", data)
+```
+
+## Log Output Format
+
+**With timestamp:**
+```
+[HH:MM:SS]|[LEVEL  ]: Message content
+```
+
+**Without timestamp:**
+```
+[LEVEL  ]: Message content
+```
+
+## File Logging
+
+When `save_log` is enabled:
+
+1. Logs are saved to the specified file path
+2. Directories are created automatically if they don't exist
+3. Messages are appended to the file (not overwritten)
+4. File operations are handled safely with error checking
+
+### Example Configuration
+```gdscript
+Logger.current_log_level = LogLevel.DEBUG
+Logger.enable_timestamp = true
+Logger.save_log = true
+Logger.folder = "user://logs/"
+Logger.log_filename = "game.log"
+```
+
+## Tips
+
+- Set `current_log_level` to `LogLevel.ERROR` in production to reduce console spam
+- Use TRACE and DEBUG for development, remove them before shipping
+- Combine multiple arguments in a single call for cleaner logs
+- File logging automatically creates missing directories
+
+
+## MIT License
+
+Copyright (c) 2025 Vincenzo Gavioli
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.