34 lines
1.1 KiB
JavaScript
34 lines
1.1 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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const quat_1 = require("../tsm/quat");
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class Quaternion extends quat_1.quat {
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static getIdentity() {
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const q = new Quaternion();
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q.setIdentity();
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return q;
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}
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constructor(buf, pos) {
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if (buf !== undefined && pos !== undefined && buf instanceof Buffer) {
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const x = buf.readFloatLE(pos);
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const y = buf.readFloatLE(pos + 4);
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const z = buf.readFloatLE(pos + 8);
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const xyzsum = 1.0 - x * x - y * y - z * z;
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const w = (xyzsum > 0.0) ? Math.sqrt(xyzsum) : 0;
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super([x, y, z, w]);
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}
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else if (buf !== undefined && Array.isArray(buf)) {
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super(buf);
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}
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else {
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super();
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}
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}
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writeToBuffer(buf, pos) {
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const q = this.normalize();
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buf.writeFloatLE(q.x, pos);
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buf.writeFloatLE(q.y, pos + 4);
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buf.writeFloatLE(q.z, pos + 8);
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}
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}
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exports.Quaternion = Quaternion;
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//# sourceMappingURL=Quaternion.js.map
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