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import { EntityData } from '../model/data/entity';

import { loadEntity } from '../view/entity';
import { Renderer } from '../view/renderer/renderer';
import { SpriteView } from '../view/sprite';

import { Collidable } from '../math/collision';

import { getJSON } from '../util';
import { CollidableGroup, mkCollision } from './collision';

import { vec2 } from 'gl-matrix';

export class EntityContext implements CollidableGroup {
	public static async load(renderer: Renderer, name: string): Promise<EntityContext> {
		const entity = new EntityData(await getJSON(`resources/entity/${name}.json`));

		return new EntityContext(
			renderer,
			name,
			await loadEntity(renderer, entity),
			mkCollision(entity.collision),
		);
	}

	public readonly pos: vec2 = vec2.create();

	private constructor(
		private readonly renderer: Renderer,
		private readonly name: string,
		private readonly view: SpriteView,
		private readonly collision: Collidable[],
	) {}

	public render() {
		this.renderer.setTranslation(this.pos);
		this.view.render();
	}

	public getTranslation(): vec2 {
		return this.pos;
	}

	public getCollidables(): Collidable[] {
		return this.collision;
	}

	public interact() {
		alert(`You've interacted with ${this.name}!`);
	}
}