godot-csharp

Development

Godot C# programming skill for .NET integration, scripting patterns, and performance optimization.

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How to use this skill

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I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/a5c-ai/babysitter/blob/HEAD/library/specializations/game-development/skills/godot-csharp/SKILL.md

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Godot C# Skill

C# programming for Godot Engine development.

Overview

This skill provides capabilities for implementing game logic using C# in Godot, leveraging .NET integration.

Capabilities

C# Integration

Node class inheritance
Attribute-based exports
Signal definitions
Callable system

.NET Features

NuGet packages
Async/await patterns
LINQ queries
.NET libraries

Interoperability

Call GDScript from C#
Expose to GDScript
Handle Variant types
Manage signals

Performance

Struct usage
Memory management
Object pooling
Span usage

Prerequisites

Godot 4.0+ with .NET support
.NET SDK installed
C# IDE (VS Code, Rider)

Usage Patterns

Node Script

using Godot;

public partial class Player : CharacterBody2D
{
    [Export]
    public float Speed { get; set; } = 200f;

    [Signal]
    public delegate void HealthChangedEventHandler(int newHealth);

    private int _health = 100;

    public override void _Ready()
    {
        // Initialize
    }

    public override void _PhysicsProcess(double delta)
    {
        var velocity = Vector2.Zero;
        velocity.X = Input.GetAxis("move_left", "move_right");
        velocity.Y = Input.GetAxis("move_up", "move_down");
        Velocity = velocity.Normalized() * Speed;
        MoveAndSlide();
    }
}

Signal Connection

button.Pressed += OnButtonPressed;
// or
button.Connect("pressed", Callable.From(OnButtonPressed));

Best Practices

Use partial classes
Leverage NuGet packages
Handle node lifecycle
Profile memory usage
Use source generators

References

Godot C# Documentation