This repository contains the FosterFramework.Extensions.Scenes source code.

Introduction  •  Installation  •  Usage  •  Documentation  •  Samples

Introduction

This FosterFramework.Extensions.Scenes library provides simple api to implements scenes managment in your FosterFramework game.

Installation

Nuget

dotnet add package FosterFramework.Extensions.Scenes

Include project

• Clone the project git clone https://github.com/mc-lep/Foster.Extensions.Scenes.git
• Add a reference to the cloned project

Usage

Sample code that shows how to use the library:

ScenesManager scenesManager = new();
scenesManager.SwitchToScene(new Scene1()); 

The other available methods are described in the next section.

Documentation

To use the library, you must follow these three steps

1. Create a Scene

A scene is just a class which will be updated and rendered at each frame. It's supposed to have all the logic of a GameState of your game (ex: Setting, Title screen, Gameplay, ...)

To create a scene just inihirit from the base Scene class and implements the Update and Render methods.

internal class TitleScene : Scene
{
    public static readonly string FontsPath = Path.Combine("Content", "Fonts");
    public static readonly SpriteFont _titleFont = new(Path.Combine(FontsPath, "Poppins-Black.ttf"), 38);

    public string Title { get; }
    public Vector2 TitlePosition { get; }

    public TitleScene(string title, string message)
    {
        Title = title;
        TitlePosition = new Vector2((App.Width - _titleFont.WidthOfLine(Title)) * 0.5f, App.Height * 0.5f - _titleFont.HeightOf(Title));
    }

    public override void Render()
    {
        Graphics.Clear(Color.Black);

        Batch.Text(_titleFont, Title, TitlePosition, Color.White);
        
        Batch.Render();
        Batch.Clear();
    }
}

2. Initialize scene manager

Impletent a new Game Module and initialize a ScenesManager.

internal class GameRoot : Module
{
    private readonly ScenesManager _scenesManager = new();

    public override void Update()
    {
        _scenesManager.Update();
    }

    public override void Render()
    {
        _scenesManager.Render();
    }
}

3. Show you scene

Call the method SwitchToScene, and the ScenesManager will update and render your scene at each frame.

internal class GameRoot : Module
{
    private readonly ScenesManager _scenesManager = new();

    public override void Startup()
    {
        _scenesManager.SwitchToScene(new TitleScene()); // Swicth to your scene
    }

    public override void Update()
    {
        _scenesManager.Update();
    }

    public override void Render()
    {
        _scenesManager.Render();
    }
}

You can add transitions when switching to your scene by passing a transition object in method SwitchToScene

public override void Startup()
{
	_scenesManager.SwitchToScene(new TitleScene(), new ColorFadeTransition(Color.White, 1f, Ease.QuadOut)); // Swicth to your scene using a transition
}

Included transitions

• ColorFadeTransition : Blend your screen to a Color and then the next screen from this Color

Samples

A samples project is included in the repository, you can found it here