one
Version:
One is a React framework for web, iOS, and Android apps.
93 lines (91 loc) • 2.78 kB
JavaScript
;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
for (var name in all) __defProp(target, name, {
get: all[name],
enumerable: true
});
};
var __copyProps = (to, from, except, desc) => {
if (from && typeof from === "object" || typeof from === "function") {
for (let key of __getOwnPropNames(from)) if (!__hasOwnProp.call(to, key) && key !== except) __defProp(to, key, {
get: () => from[key],
enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable
});
}
return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var curves_exports = {};
__export(curves_exports, {
sampleCurve: () => sampleCurve,
serializeCurve: () => serializeCurve
});
module.exports = __toCommonJS(curves_exports);
var SAMPLE_N = 32;
var PRESETS = {
smooth: function smooth(t) {
return Math.pow(1 - t, 3);
},
sharp: function sharp(t) {
return Math.pow(1 - t, 5);
},
gentle: function gentle(t) {
return Math.pow(1 - t, 2);
},
soft: function soft(t) {
return Math.cos(t * Math.PI / 2);
},
smoother: function smoother(t) {
return 1 - t * t * t * (t * (t * 6 - 15) + 10);
},
linear: function linear(t) {
return 1 - t;
}
};
function cubicBezierEval(x1, y1, x2, y2, x) {
if (x <= 0) return 0;
if (x >= 1) return 1;
var cx = 3 * x1;
var bx = 3 * (x2 - x1) - cx;
var ax = 1 - cx - bx;
var cy = 3 * y1;
var by = 3 * (y2 - y1) - cy;
var ay = 1 - cy - by;
var t = x;
for (var i = 0; i < 8; i++) {
var bxt = ((ax * t + bx) * t + cx) * t;
var dbxt = (3 * ax * t + 2 * bx) * t + cx;
if (Math.abs(dbxt) < 1e-6) break;
t = Math.max(0, Math.min(1, t - (bxt - x) / dbxt));
}
return ((ay * t + by) * t + cy) * t;
}
function sampleCubicBezier(curve) {
var { x1, y1, x2, y2 } = curve;
return Array.from({ length: SAMPLE_N }, function(_, i) {
return Number.parseFloat((1 - cubicBezierEval(x1, y1, x2, y2, i / (SAMPLE_N - 1))).toFixed(4));
});
}
function normalizeStops(curve) {
return curve.values.map(function(v) {
return Math.max(0, Math.min(1, v));
});
}
function sampleCurve(curve) {
if (typeof curve === "string") {
var _PRESETS_curve;
var fn = (_PRESETS_curve = PRESETS[curve]) !== null && _PRESETS_curve !== void 0 ? _PRESETS_curve : PRESETS.smooth;
return Array.from({ length: SAMPLE_N }, function(_, i) {
return Number.parseFloat(fn(i / (SAMPLE_N - 1)).toFixed(4));
});
}
return curve.type === "cubicBezier" ? sampleCubicBezier(curve) : normalizeStops(curve);
}
function serializeCurve(curve) {
if (typeof curve === "string") return curve;
return sampleCurve(curve).join(",");
}