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import { SchemaJson, Node } from '@drecom/scene-graph-schema';
import AssetExporter from '../../interface/AssetExporter';
import AssetExporterPlugin from '../../interface/AssetExporterPlugin';
import AssetExportMapEntity from '../../interface/AssetExportMapEntity';
type ExportAssetIterator = (owner: any, key: string, path: string, parentAsset?: string) => void;
/**
* Unity scene exporter
*/
export default class Unity implements AssetExporter {
/**
* Returns runtime identifier string.
*/
public getIdentifier(): string {
return 'unity';
}
/**
* Create asset export map.
*/
public createExportMap(
sceneGraphMap: Map<string, SchemaJson>,
assetRoot: string,
destDir: string,
urlNameSpace: string,
plugins?: Map<string, AssetExporterPlugin>
): Map<string, AssetExportMapEntity> {
const exportMap = new Map<string, AssetExportMapEntity>();
sceneGraphMap.forEach((graph) => {
const scene = graph.scene;
scene.forEach((node) => {
this.forEachExportingAsset(node, (_owner, _key, path, parentAsset) => {
let movePath = '';
if (parentAsset) {
const assetPaths = path.split('/');
Eif (assetPaths.length > 0) {
const parentAssetPaths = parentAsset.split('/');
parentAssetPaths.pop();
parentAssetPaths.push(assetPaths.pop() as string);
movePath = parentAssetPaths.join('/');
}
}
const entity = this.createExportMapEntity(
path,
assetRoot,
destDir,
urlNameSpace,
movePath
);
exportMap.set(path, entity);
});
this.pluginPostProcess(node, exportMap, assetRoot, destDir, urlNameSpace, plugins);
});
});
return exportMap;
}
public pluginPostProcess(
node: Node,
exportMap: Map<string, AssetExportMapEntity>,
assetRoot: string,
destDir: string,
urlNameSpace: string,
plugins?: Map<string, AssetExporterPlugin>
): void {
if (!plugins) {
return;
}
plugins.forEach((plugin) => {
plugin.getExportMapExtendPaths(node).forEach((path) => {
const entity = this.createExportMapEntity(path, assetRoot, destDir, urlNameSpace);
exportMap.set(path, entity);
});
});
}
/**
* Replace paths in scene graph from absolute local path to relative path/url.
*/
public replacePaths(
sceneGraphMap: Map<string, SchemaJson>,
exportMap: Map<string, AssetExportMapEntity>,
plugins?: Map<string, AssetExporterPlugin>
): void {
/**
* replace local path with url
*/
sceneGraphMap.forEach((sceneGraph) => {
sceneGraph.scene.forEach((node) => {
this.forEachExportingAsset(node, (owner, key, path) => {
const entity = exportMap.get(path);
Eif (entity) {
owner[key] = entity.url;
}
});
});
});
if (!plugins) return;
plugins.forEach((plugin) => {
plugin.replaceExtendedPaths(sceneGraphMap, exportMap);
});
}
/**
* iterate exporting assets
*/
private forEachExportingAsset(node: Node, proc: ExportAssetIterator): void {
Eif (node.meshRenderer) {
if (node.meshRenderer.mesh) {
proc(node.meshRenderer.mesh, 'url', node.meshRenderer.mesh.url);
if (node.meshRenderer.materials) {
node.meshRenderer.materials.forEach((material: any) => {
proc(material, 'url', material.url, node.meshRenderer!.mesh!.url);
});
}
}
}
}
/**
* Create asset export map entity.
*/
private createExportMapEntity(
basePath: string,
assetRoot: string,
destDir: string,
urlNameSpace: string,
movePath: string = ''
): AssetExportMapEntity {
const destRelativePath = (movePath || basePath).replace(RegExp(`\^${assetRoot}`), '');
return {
localSrcPath: basePath,
localDestPath: path.join(destDir, destRelativePath),
url: path.join(urlNameSpace, destRelativePath)
};
}
}
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