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polygonjs-engine

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

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import {MapUtils as MapUtils2} from "../../../../../core/MapUtils"; import {GLDefinitionType} from "../../utils/GLDefinition"; import {TypedGLDefinitionCollection} from "../../utils/GLDefinitionCollection"; import {ParamConfigsController as ParamConfigsController2} from "../../../../nodes/utils/code/controllers/ParamConfigsController"; import {ShadersCollectionController as ShadersCollectionController2} from "./ShadersCollectionController"; import {CodeFormatter as CodeFormatter2} from "./CodeFormatter"; import {LineType as LineType2} from "./LineType"; import {ArrayUtils as ArrayUtils2} from "../../../../../core/ArrayUtils"; export class CodeBuilder { constructor(_node_traverser, _root_nodes_for_shader_method) { this._node_traverser = _node_traverser; this._root_nodes_for_shader_method = _root_nodes_for_shader_method; this._param_configs_controller = new ParamConfigsController2(); this._param_configs_set_allowed = true; this._lines = new Map(); } shader_names() { return this._node_traverser.shader_names(); } build_from_nodes(root_nodes, param_nodes) { this._node_traverser.traverse(root_nodes); const nodes_by_shader_name = new Map(); for (let shader_name of this.shader_names()) { const nodes = this._node_traverser.nodes_for_shader_name(shader_name); nodes_by_shader_name.set(shader_name, nodes); } const sorted_nodes = this._node_traverser.sorted_nodes(); for (let shader_name of this.shader_names()) { const root_nodes_for_shader = this._root_nodes_for_shader_method(shader_name); for (let root_node of root_nodes_for_shader) { MapUtils2.push_on_array_at_entry(nodes_by_shader_name, shader_name, root_node); } } const sorted_node_ids = new Map(); for (let node of sorted_nodes) { sorted_node_ids.set(node.graphNodeId(), true); } for (let root_node of root_nodes) { if (!sorted_node_ids.get(root_node.graphNodeId())) { sorted_nodes.push(root_node); sorted_node_ids.set(root_node.graphNodeId(), true); } } for (let node of sorted_nodes) { node.reset_code(); } for (let node of param_nodes) { node.reset_code(); } this._shaders_collection_controller = new ShadersCollectionController2(this.shader_names(), this.shader_names()[0]); this.reset(); for (let shader_name of this.shader_names()) { let nodes = nodes_by_shader_name.get(shader_name) || []; nodes = ArrayUtils2.uniq(nodes); this._shaders_collection_controller.set_current_shader_name(shader_name); if (nodes) { for (let node of nodes) { node.set_lines(this._shaders_collection_controller); } } } if (this._param_configs_set_allowed) { for (let param_node of param_nodes) { param_node.set_param_configs(); } this.set_param_configs(param_nodes); } this.set_code_lines(sorted_nodes); } shaders_collection_controller() { return this._shaders_collection_controller; } disallow_new_param_configs() { this._param_configs_set_allowed = false; } allow_new_param_configs() { this._param_configs_set_allowed = true; } reset() { for (let shader_name of this.shader_names()) { const lines_map = new Map(); this._lines.set(shader_name, lines_map); } } param_configs() { return this._param_configs_controller.list || []; } lines(shader_name, line_type) { return this._lines.get(shader_name)?.get(line_type) || []; } all_lines() { return this._lines; } set_param_configs(nodes) { this._param_configs_controller.reset(); for (let node of nodes) { const param_configs = node.param_configs(); if (param_configs) { for (let param_config of param_configs) { this._param_configs_controller.push(param_config); } } } } set_code_lines(nodes) { for (let shader_name of this.shader_names()) { this.add_code_lines(nodes, shader_name); } } add_code_lines(nodes, shader_name) { this.add_definitions(nodes, shader_name, GLDefinitionType.FUNCTION, LineType2.FUNCTION_DECLARATION); this.add_definitions(nodes, shader_name, GLDefinitionType.UNIFORM, LineType2.DEFINE); this.add_definitions(nodes, shader_name, GLDefinitionType.VARYING, LineType2.DEFINE); this.add_definitions(nodes, shader_name, GLDefinitionType.ATTRIBUTE, LineType2.DEFINE); this.add_code_line_for_nodes_and_line_type(nodes, shader_name, LineType2.BODY); } add_definitions(nodes, shader_name, definition_type, line_type) { if (!this._shaders_collection_controller) { return; } const definitions = []; for (let node of nodes) { let node_definitions = this._shaders_collection_controller.definitions(shader_name, node); if (node_definitions) { node_definitions = node_definitions.filter((d) => d.definition_type == definition_type); for (let definition of node_definitions) { definitions.push(definition); } } } if (definitions.length > 0) { const collection = new TypedGLDefinitionCollection(definitions); const uniq_definitions = collection.uniq(); if (collection.errored) { throw `code builder error: ${collection.error_message}`; } const definitions_by_node_id = new Map(); const node_ids = new Map(); for (let definition of uniq_definitions) { const node_id = definition.node.graphNodeId(); if (!node_ids.has(node_id)) { node_ids.set(node_id, true); } MapUtils2.push_on_array_at_entry(definitions_by_node_id, node_id, definition); } const lines_for_shader = this._lines.get(shader_name); node_ids.forEach((_, node_id) => { const definitions2 = definitions_by_node_id.get(node_id); if (definitions2) { const first_definition = definitions2[0]; if (first_definition) { const comment = CodeFormatter2.node_comment(first_definition.node, line_type); MapUtils2.push_on_array_at_entry(lines_for_shader, line_type, comment); for (let definition of definitions2) { const line = CodeFormatter2.line_wrap(first_definition.node, definition.line, line_type); MapUtils2.push_on_array_at_entry(lines_for_shader, line_type, line); } const separator = CodeFormatter2.post_line_separator(line_type); MapUtils2.push_on_array_at_entry(lines_for_shader, line_type, separator); } } }); } } add_code_line_for_nodes_and_line_type(nodes, shader_name, line_type) { nodes = nodes.filter((node) => { if (this._shaders_collection_controller) { const lines = this._shaders_collection_controller.body_lines(shader_name, node); return lines && lines.length > 0; } }); var nodes_count = nodes.length; for (let i = 0; i < nodes_count; i++) { const is_last = i == nodes.length - 1; this.add_code_line_for_node_and_line_type(nodes[i], shader_name, line_type, is_last); } } add_code_line_for_node_and_line_type(node, shader_name, line_type, is_last) { if (!this._shaders_collection_controller) { return; } const lines = this._shaders_collection_controller.body_lines(shader_name, node); if (lines && lines.length > 0) { const lines_for_shader = this._lines.get(shader_name); const comment = CodeFormatter2.node_comment(node, line_type); MapUtils2.push_on_array_at_entry(lines_for_shader, line_type, comment); ArrayUtils2.uniq(lines).forEach((line) => { line = CodeFormatter2.line_wrap(node, line, line_type); MapUtils2.push_on_array_at_entry(lines_for_shader, line_type, line); }); if (!(line_type == LineType2.BODY && is_last)) { const separator = CodeFormatter2.post_line_separator(line_type); MapUtils2.push_on_array_at_entry(lines_for_shader, line_type, separator); } } } }