polygonjs-engine/src/core/operations/_Base.ts

node-based webgl 3D engine https://polygonjs.com

import {NodeContext} from '../../engine/poly/NodeContext';
import {ParamType} from '../../engine/poly/ParamType';
import {ParamValuesTypeMap} from '../../engine/params/types/ParamValuesTypeMap';
import {StatesController} from '../../engine/nodes/utils/StatesController';
import {PolyScene} from '../../engine/scene/PolyScene';
import {InputCloneMode} from '../../engine/poly/InputCloneMode';
import {PolyDictionary} from '../../types/GlobalTypes';

export type DefaultOperationParam<T extends ParamType> = ParamValuesTypeMap[T];
export type DefaultOperationParams = PolyDictionary<DefaultOperationParam<ParamType>>;

export const OPERATIONS_COMPOSER_NODE_TYPE: Readonly<string> = 'operationsComposer';

export class BaseOperation {
	static type(): string {
		throw 'type to be overriden';
	}
	type() {
		const c = this.constructor as typeof BaseOperation;
		return c.type();
	}
	static context(): NodeContext {
		console.error('operation has no node_context', this);
		throw 'context requires override';
	}
	context(): NodeContext {
		const c = this.constructor as typeof BaseOperation;
		return c.context();
	}

	static readonly DEFAULT_PARAMS: DefaultOperationParams = {};
	static readonly INPUT_CLONED_STATE: InputCloneMode | InputCloneMode[] = [];

	constructor(protected scene: PolyScene, protected states?: StatesController) {}

	cook(input_contents: any[], params: object): any {}
}