{"id":19266580,"url":"https://github.com/codewriter-packages/morpeh.systemstateprocessor","last_synced_at":"2025-04-21T19:32:16.294Z","repository":{"id":118864738,"uuid":"582613238","full_name":"codewriter-packages/Morpeh.SystemStateProcessor","owner":"codewriter-packages","description":"Reactivity for Morpeh 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Morpeh.SystemStateProcessor [![Github license](https://img.shields.io/github/license/codewriter-packages/Morpeh.SystemStateProcessor.svg?style=flat-square)](#) [![Unity 2021.3](https://img.shields.io/badge/Unity-2021.3+-2296F3.svg?style=flat-square)](#) ![GitHub package.json version](https://img.shields.io/github/package-json/v/codewriter-packages/Morpeh.SystemStateProcessor?style=flat-square)\n_Reactivity for Morpeh ECS_\n\n## How to use?\n\n```csharp\nusing System;\nusing Scellecs.Morpeh;\nusing Scellecs.Morpeh.Systems;\nusing UnityEngine;\n\n[Serializable] public struct HeroComponent : IComponent { }\n[Serializable] public struct HeroDamagedMarker : IComponent { }\n[Serializable] public struct HeroDeadMarker : IComponent { }\n\npublic class HealthBarSystem : UpdateSystem {\n    [SerializeField] private GameObject healthBarPrefab;\n\n    private SystemStateProcessor\u003cHealthBarSystemStateComponent\u003e heroProcessor;\n\n    public override void OnAwake() {\n        heroProcessor = World.Filter\n            .With\u003cHeroComponent\u003e()\n            .With\u003cHeroDamagedMarker\u003e()\n            .Without\u003cHeroDeadMarker\u003e()\n            .ToSystemStateProcessor(CreateHealthBarForHero, RemoveHealthBarForHero);\n    }\n\n    public override void Dispose() {\n        heroProcessor.Dispose();\n    }\n\n    public override void OnUpdate(float deltaTime) {\n        heroProcessor.Process();\n    }\n\n    // Called when an entity has been added to the Filter\n    private HealthBarSystemStateComponent CreateHealthBarForHero(Entity heroEntity) {\n        var healthBar = Instantiate(healthBarPrefab);\n\n        return new HealthBarSystemStateComponent {\n            healthBar = healthBar,\n        };\n    }\n\n    // Called when an entity has been removed from filter or has been destroyed\n    private void RemoveHealthBarForHero(ref HealthBarSystemStateComponent state) {\n        Destroy(state.healthBar);\n    }\n\n    [Serializable]\n    private struct HealthBarSystemStateComponent : ISystemStateComponent {\n        public GameObject healthBar;\n    }\n}\n```\n\n## License\n\nMorpeh.SystemStateProcessor is [MIT licensed](./LICENSE.md).\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcodewriter-packages%2Fmorpeh.systemstateprocessor","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fcodewriter-packages%2Fmorpeh.systemstateprocessor","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcodewriter-packages%2Fmorpeh.systemstateprocessor/lists"}