Unity Command Pattern

Command Pattern Movement System in Unity

This project demonstrates a movement system in Unity that utilizes the Command Pattern, allowing for executing, undoing, and redoing player movement commands.

Project Structure

1. CommandManager.cs: Manages the execution, undo, and redo of commands.
2. ICommand.cs: Interface for commands.
3. MoveCommand.cs: Abstract class for movement commands.
4. MoveUpCommand.cs: Command for moving the player up.
5. MoveDownCommand.cs: Command for moving the player down.
6. MoveLeftCommand.cs: Command for moving the player left.
7. MoveRightCommand.cs: Command for moving the player right.
8. Player.cs: Handles player movement and command execution.

CommandManager.cs

CommandManager

Manages the execution, undo, and redo stacks for commands.

• ExecuteCommand(ICommand command): Executes a command and adds it to the history stack.
• Undo(): Undoes the last executed command.
• Redo(): Redoes the last undone command.

ICommand.cs

ICommand

Defines the methods for commands.

• Execute(): Executes the command.
• Undo(): Undoes the command.

MoveCommand.cs

MoveCommand

Abstract class for movement commands, implementing the ICommand interface.

• Execute(): Saves the player's current position and moves the player in the specified direction.
• Undo(): Moves the player back to the previous position.

MoveUpCommand.cs, MoveDownCommand.cs, MoveLeftCommand.cs, MoveRightCommand.cs

Move Commands

Concrete implementations of MoveCommand for moving the player in different directions.

• MoveUpCommand: Moves the player up.
• MoveDownCommand: Moves the player down.
• MoveLeftCommand: Moves the player left.
• MoveRightCommand: Moves the player right.

Player.cs

Player

Handles player movement, input detection, and command execution.

• Move(Vector3 direction): Moves the player in the specified direction.
• MoveToPosition(Vector3 position): Moves the player to the specified position.
• IsMoving(): Returns whether the player is currently moving.