static/src/engine/entity.ts


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import {
  Component,
  ComponentType,
  RenderableComponent,
  TrailingPositionComponent,
} from "./component";

export enum EntityType {
  LASER = "LASER",
  CAT = "CAT",
}

export interface Entity {
  entity_type: EntityType;
  id: string;
  components: Record<ComponentType, Component>;
}

export const create_laser = (base: Entity) => {
  const trailing_position: TrailingPositionComponent = {
    name: ComponentType.TRAILING_POSITION,
    trails: [],
  };
  base.components[ComponentType.TRAILING_POSITION] = trailing_position;

  const renderable: RenderableComponent = {
    name: ComponentType.RENDERABLE,
  };
  base.components[ComponentType.RENDERABLE] = renderable;
  return base;
};

export const create_cat = (base: Entity) => {
  const renderable: RenderableComponent = {
    name: ComponentType.RENDERABLE,
  };
  base.components[ComponentType.RENDERABLE] = renderable;
  return base;
};