@babylonjs/viewer/dist/chunks/flowGraphMeshPickEventBlock-ppwX2LDH.esm.js

The Babylon Viewer aims to simplify a specific but common Babylon.js use case: loading, viewing, and interacting with a 3D model.

import { c as FlowGraphEventBlock, _ as _IsDescendantOf } from './KHR_interactivity-Bmb38TjL.esm.js';
import { by as PointerEventTypes, R as RegisterClass } from './index-FzOfPXLV.esm.js';
import { R as RichTypeAny, j as RichTypeVector3, f as RichTypeNumber } from './declarationMapper-rcGCdcDP.esm.js';
import './objectModelMapping-CJnQ6at_.esm.js';

/**
 * A block that activates when a mesh is picked.
 */
class FlowGraphMeshPickEventBlock extends FlowGraphEventBlock {
    constructor(
    /**
     * the configuration of the block
     */
    config) {
        super(config);
        this.config = config;
        /**
         * the type of the event this block reacts to
         */
        this.type = "MeshPick" /* FlowGraphEventType.MeshPick */;
        this.asset = this.registerDataInput("asset", RichTypeAny, config?.targetMesh);
        this.pickedPoint = this.registerDataOutput("pickedPoint", RichTypeVector3);
        this.pickOrigin = this.registerDataOutput("pickOrigin", RichTypeVector3);
        this.pointerId = this.registerDataOutput("pointerId", RichTypeNumber);
        this.pickedMesh = this.registerDataOutput("pickedMesh", RichTypeAny);
        this.pointerType = this.registerDataInput("pointerType", RichTypeAny, PointerEventTypes.POINTERPICK);
    }
    _getReferencedMesh(context) {
        return this.asset.getValue(context);
    }
    _executeEvent(context, pickedInfo) {
        // get the pointer type
        const pointerType = this.pointerType.getValue(context);
        if (pointerType !== pickedInfo.type) {
            // returning true here to continue the propagation of the pointer event to the rest of the blocks
            return true;
        }
        // check if the mesh is the picked mesh or a descendant
        const mesh = this._getReferencedMesh(context);
        if (mesh && pickedInfo.pickInfo?.pickedMesh && (pickedInfo.pickInfo?.pickedMesh === mesh || _IsDescendantOf(pickedInfo.pickInfo?.pickedMesh, mesh))) {
            this.pointerId.setValue(pickedInfo.event.pointerId, context);
            this.pickOrigin.setValue(pickedInfo.pickInfo.ray?.origin, context);
            this.pickedPoint.setValue(pickedInfo.pickInfo.pickedPoint, context);
            this.pickedMesh.setValue(pickedInfo.pickInfo.pickedMesh, context);
            this._execute(context);
            // stop the propagation if the configuration says so
            return !this.config?.stopPropagation;
        }
        else {
            // reset the outputs
            this.pointerId.resetToDefaultValue(context);
            this.pickOrigin.resetToDefaultValue(context);
            this.pickedPoint.resetToDefaultValue(context);
            this.pickedMesh.resetToDefaultValue(context);
        }
        return true;
    }
    /**
     * @internal
     */
    _preparePendingTasks(_context) {
        // no-op
    }
    /**
     * @internal
     */
    _cancelPendingTasks(_context) {
        // no-op
    }
    /**
     * @returns class name of the block.
     */
    getClassName() {
        return "FlowGraphMeshPickEventBlock" /* FlowGraphBlockNames.MeshPickEvent */;
    }
}
RegisterClass("FlowGraphMeshPickEventBlock" /* FlowGraphBlockNames.MeshPickEvent */, FlowGraphMeshPickEventBlock);

export { FlowGraphMeshPickEventBlock };
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