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tnt-ecs\n## Simple Entity Component System\n\n### Basic example\n\n```javascript\nimport Core from 'tnt-ecs';\nimport System from 'tnt-ecs';\nimport Entity from 'tnt-ecs';\nimport Component from 'tnt-ecs';\n\nclass Position extends Component {\n  \n  getName() {\n    return 'position';\n  }\n  \n  getDefaults() {\n    return {x: 0, y: 0};\n  }\n}\n\nclass Color extends Component {\n  \n  getName() {\n    return 'color';\n  }\n  \n  getDefaults() {\n    return {r: 255, g: 255, b: 255};\n  }\n}\n\nclass Rendering extends System {\n  \n  test(entity) {\n    return entity.components.position \u0026\u0026 entity.components.color;\n  }\n  \n  update(entity) {\n    console.log( entity.components.position.x, entity.components.position.x );\n    console.log( entity.components.color.r, entity.components.color.g, entity.components.color.b );\n  }\n  \n  preUpdate() {\n    console.log('Before all entities are being updated');\n  }  \n\n  postUpdate() {\n    console.log('After all entities are being updated');\n  }\n  \n  enter(entity) {\n    console.log('Enter system', entity);\n  }\n  \n  exit(entity) {\n    console.log('Exit system', entity);\n  }\n}\n\nconst ecs = new Core();\nconst rendering = new Rendering();\necs.addSystem(rendering);\n\n// Start/stop the update loop\necs.stop();\necs.start();\n\n// Start/stop the system\nrendering.stop();\nrendering.start();\n\n// Add entities\necs.addEntity(new Entity([\n  new Position(),\n  new Color()\n]));\n\necs.addEntity(new Entity([\n  new Position({x: 50}),\n  new Color({b: 20})\n]));\n\necs.addEntity(new Entity([\n  new Position({x: 50}),\n  new Color({r: 0, g: 0, b: 0})\n]));\n\nconst camera = new Entity([\n\tnew Position({x: 50})\n]);\n\n// Removing / adding components\ncamera.addComponent(new Color());\ncamera.removeComponent('color');\ncamera.removeComponents(['position', 'color']);\n\nif (camera.hasComponent('position')) {\n\tconsole.log('This entity has the position component');\n}\n\n// Tagging\ncamera.tag('camera');\ncamera.removeTag('camera');\n\nif (camera.hasTag('camera')) {\n\tconsole.log('This entity has the camera tag');\n}\n```","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Freinvanoyen%2Ftnt-ecs","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Freinvanoyen%2Ftnt-ecs","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Freinvanoyen%2Ftnt-ecs/lists"}