107 lines
5.0 KiB
C#
107 lines
5.0 KiB
C#
using Friflo.Engine.ECS;
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using Microsoft.Xna.Framework;
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using MrGameEng.Assets;
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using MrGameEng.Audio;
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using MrGameEng.Core;
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using MrGameEng.Graphics;
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using MrGameEng.Input;
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namespace MrGameEng.Sample.Scenes;
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/// <summary>
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/// Интерактивная демо-сцена: ассеты через сгенерированные хендлы, анимация, слои
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/// (мир + Y-sort + screen-space HUD), камера с зумом/поворотом, ввод, звук и музыка.
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/// WASD — игрок, колесо — зум, Q/E — поворот, Space — звук, P — пауза, M — музыка, Tab — стресс-сцена.
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/// </summary>
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public sealed class MainScene : Scene
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{
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private const int DecorCount = 1500;
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private static readonly RectF WorldBounds = new(-2000f, -2000f, 4000f, 4000f);
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protected override void OnLoad()
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{
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var assets = Context.Services.GetOrDefault<AssetManager>() ?? Context.UseAssets();
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var audio = Context.Services.GetOrDefault<AudioManager>() ?? Context.UseAudio();
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var input = this.UseInput();
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var actions = SampleInput.CreateActions(input);
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this.UseSpriteAnimation();
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var renderer = this.UseRenderer2D(new Renderer2DOptions { VirtualResolution = new Point(1280, 720) });
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SampleLayers.EnsureRegistered(renderer);
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var playerTexture = assets.Load(GameAssets.Textures.Player);
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var shapesTexture = assets.Load(GameAssets.Textures.Shapes);
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var beep = assets.Load(GameAssets.Sounds.Beep);
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var shapeRegions = new[]
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{
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new Texture2DRegion(shapesTexture, new Rectangle(0, 0, 32, 32)),
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new Texture2DRegion(shapesTexture, new Rectangle(32, 0, 32, 32)),
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new Texture2DRegion(shapesTexture, new Rectangle(0, 32, 32, 32)),
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new Texture2DRegion(shapesTexture, new Rectangle(32, 32, 32, 32)),
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};
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// Декорации по всему миру: уезжаешь камерой — попадают под culling (см. заголовок окна).
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var random = new Random(42);
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for (var i = 0; i < DecorCount; i++)
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{
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var sprite = new Sprite(shapeRegions[random.Next(shapeRegions.Length)]);
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sprite.CenterOrigin();
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sprite.Color = Color.White * 0.35f;
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Store.CreateEntity(
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new Transform2D(
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new Vector2(
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random.NextSingle() * WorldBounds.Width + WorldBounds.Left,
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random.NextSingle() * WorldBounds.Height + WorldBounds.Top),
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rotation: random.NextSingle() * MathF.Tau,
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scale: new Vector2(0.5f + random.NextSingle())),
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sprite);
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}
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// Бродячие "существа" на Y-sort слое: кто ниже на экране — тот ближе.
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for (var i = 0; i < 200; i++)
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{
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var sprite = new Sprite(shapeRegions[random.Next(shapeRegions.Length)], SampleLayers.Actors);
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sprite.CenterOrigin();
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var angle = random.NextSingle() * MathF.Tau;
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Store.CreateEntity(
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new Transform2D(new Vector2(random.Next(-600, 600), random.Next(-400, 400))),
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sprite,
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new Velocity { Value = new Vector2(MathF.Cos(angle), MathF.Sin(angle)) * (40f + random.Next(80)) });
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}
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// Игрок: анимированный спрайт (2 кадра из атласа player.png), Y-sort слой.
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var playerSprite = new Sprite(new Texture2DRegion(playerTexture, new Rectangle(0, 0, 32, 32)), SampleLayers.Actors);
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playerSprite.CenterOrigin();
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var blink = new SpriteAnimationClip(
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[
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new Texture2DRegion(playerTexture, new Rectangle(0, 0, 32, 32)),
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new Texture2DRegion(playerTexture, new Rectangle(32, 0, 32, 32)),
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], framesPerSecond: 3f);
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var player = Store.CreateEntity(
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new Transform2D(Vector2.Zero, scale: new Vector2(2f)),
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playerSprite,
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new SpriteAnimator(blink));
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var camera = Store.CreateEntity(new Camera(Vector2.Zero, zoom: 1f, bounds: WorldBounds));
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// HUD: золотой квадрат в углу на screen-space слое — не двигается с камерой.
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var hud = new Sprite(shapeRegions[3], SampleLayers.Ui);
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Store.CreateEntity(new Transform2D(new Vector2(16f, 16f)), hud);
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UpdateSystems.Add(new PlayerControlSystem(player, actions, audio, beep));
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UpdateSystems.Add(new BounceSystem(WorldBounds));
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UpdateSystems.Add(new CameraControlSystem(camera, player, input));
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UpdateSystems.Add(new SceneHotkeysSystem(Context, actions, () => new StressScene()));
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UpdateSystems.Add(new TitleStatsSystem(Context, renderer, "Main"));
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var music = audio.Music;
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if (!music.IsPlaying)
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{
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music.Volume = 0.4f;
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music.Play(assets.Load(GameAssets.Music.Theme));
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}
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}
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}
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