@woosh/meep-engine/src/engine/animation/clip/curve_from_track_data_discrete.js

Pure JavaScript game engine. Fully featured and production ready.

import { Keyframe } from "../curve/Keyframe.js";

/**
 *
 * @param {AnimationCurve} curve
 * @param {number[]} values
 * @param {number[]} times
 * @param {number} component_count
 * @param {number} component_index
 */
export function curve_from_track_data_discrete(curve, values, times, component_count, component_index) {

    const key_count = times.length;

    for (let k = 0; k < key_count; k++) {
        const value = values[k * component_count + component_index];
        const time = times[k];

        curve.add(Keyframe.from(time, value));
    }

    const keys = curve.keys;

    for (let i = key_count - 1; i > 0; i--) {
        const key = keys[i];
        const prev = keys[i - 1];

        keys.splice(i, 0, Keyframe.from(key.time, prev.value));
    }
}