95 lines
1.9 KiB
JavaScript
95 lines
1.9 KiB
JavaScript
import * as THREE from 'three/src/Three';
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const _vec2 = new THREE.Vector2()
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const _vec3 = new THREE.Vector3()
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const raycaster = new THREE.Raycaster();
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raycaster.params.Line.threshold = 0.8;
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raycaster.params.Points.threshold = 0.6;
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const color = {
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hover: 0x00ff00,
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lighting: 0xFFFFFF,
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emissive: 0x072534,
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d: 0xf5bc42, //datums: planes
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p: 0x555555, //points
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l: 0x555555, //lines
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m: 0x156289, //mesh: extrude
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}
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const lineMaterial = new THREE.LineBasicMaterial({
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linewidth: 2,
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color: color.l,
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})
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const pointMaterial = new THREE.PointsMaterial({
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color: color.p,
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size: 4,
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})
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const ptObj = (n) => {
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const ret = new THREE.Points(
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new THREE.BufferGeometry().setAttribute('position',
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new THREE.Float32BufferAttribute(n || 3, 3)
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),
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pointMaterial.clone()
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);
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ret.name = 'p' + nid++
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return ret
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}
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const lineObj = (n = 1) => {
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const ret = new THREE.Line(
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new THREE.BufferGeometry().setAttribute('position',
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new THREE.Float32BufferAttribute(3 * (n + 1), 3)
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),
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lineMaterial.clone()
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);
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ret.name = 'l' + nid++
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return ret
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}
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async function awaitPts(n) {
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let references = this.selected.slice()
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let end = false;
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while (references.length < n && !end) {
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let pt;
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let onEnd, onKey;
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try {
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pt = await new Promise((res, rej) => {
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onKey = (e) => e.key == 'Escape' && rej()
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onEnd = (e) => res(this.hovered[0])
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this.canvas.addEventListener('pointerdown', onEnd)
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window.addEventListener('keydown', onKey)
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})
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if (pt.name[0] == 'p') {
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references.push(pt)
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} else if (pt.name[0] == 'd') {
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references = [pt]
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end = true;
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}
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} catch (e) {
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end = true;
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}
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this.canvas.removeEventListener('pointerdown', onEnd)
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window.removeEventListener('keydown', onKey)
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}
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return references
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}
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export { lineMaterial, pointMaterial, _vec2, _vec3, raycaster, color, ptObj, lineObj, awaitPts } |