arx-level-generator/dist/src/tools/mesh/connectEdgeTo.js

A tool for creating Arx Fatalis maps

import { categorizeVertices } from '../mesh/categorizeVertices.js';
import { getVertices } from '../mesh/getVertices.js';
/**
 * Connect the edge vertices of "source" to the edge vertices of "target"
 */
export const connectEdgeTo = (source, target) => {
    const categorizedSourceVertices = categorizeVertices(source);
    const sourceEdgeVertices = [...categorizedSourceVertices.edges, ...categorizedSourceVertices.corners];
    const sourceVertices = getVertices(source);
    const sourceCoords = source.getAttribute('position');
    const categorizedTargetVertices = categorizeVertices(target);
    const targetEdgeVertices = [...categorizedTargetVertices.edges, ...categorizedTargetVertices.corners];
    sourceVertices.forEach((vertex) => {
        const edgeIdx = sourceEdgeVertices.findIndex((edgeVertex) => {
            return edgeVertex.equals(vertex.vector);
        });
        if (edgeIdx !== -1) {
            const [edgePoint] = sourceEdgeVertices.splice(edgeIdx, 1);
            const closestTargetVertex = targetEdgeVertices.slice(1).reduce((closestSoFar, candidate) => {
                if (candidate.distanceTo(edgePoint) < closestSoFar.distanceTo(edgePoint)) {
                    return candidate;
                }
                else {
                    return closestSoFar;
                }
            }, targetEdgeVertices[0]);
            sourceCoords.setX(vertex.idx, closestTargetVertex.x);
            sourceCoords.setY(vertex.idx, closestTargetVertex.y);
            sourceCoords.setZ(vertex.idx, closestTargetVertex.z);
        }
    });
};
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