X-Git-Url: https://git.r.bdr.sh/rbdr/r.bdr.sh/blobdiff_plain/a487be1cfdf591f5b568a9729c95e6c593271a8a..ef8dfccf9ed5c2c71456f1c97e052dcbfe868f75:/js/animation.js?ds=sidebyside diff --git a/js/animation.js b/js/animation.js index 9c8723f..ecf5e43 100644 --- a/js/animation.js +++ b/js/animation.js @@ -1,56 +1,50 @@ (function () { var K = document.querySelector('canvas'), - { random: R, PI, cos: C, sin: S, floor, atan2: A } = Math, - id = p => p, - spn = rad => p => ({ - x: p.x + rad * C(l), - y: p.y + rad * S(l) - }), - X = K.getContext('2d'), - f = 24, l = 0, s = 1, z = 5 + r(10), - k = R() > 0.5, c = R() > 0.5, - I = Array(r(10) + 6).fill().map(() => ({ - x: r(64), - y: r(64), - a: R() * 2 * PI, - c: r(100) - })), - H = [sqr, crc, hrt, chs, lch], P = [id, spn(5), spn(15)], - draw = H[r(H.length)], pos = P[r(P.length)] + { random: R, PI, cos: C, sin: S, atan2: A } = Math, + id = p => p, + spn = rad => p => ({ + x: p.x + rad * C(l), + y: p.y + rad * S(l) + }), + X = K.getContext('2d'), F = X.fill.bind(X), B = X.beginPath.bind(X), + f = 24, l = 0, s = 1, z = 5 + r(10), + k = R() > 0.5, c = R() > 0.5, + I = Array(r(10) + 6).fill().map(() => ({ + x: r(64), y: r(64), + a: R() * 2 * PI, c: r(100) + })), + H = [sqr, crc, hrt, chs, lch], P = [id, spn(5), spn(15)], + draw = H[r(H.length)], pos = P[r(P.length)] function r(x) { - return floor(R() * x) + return ~~(R() * x) } function sqr(i) { - - var {x, y} = pos(i) - X.fillRect(x, y, z, z) + var p = pos(i) + X.fillRect(p.x, p.y, z, z) } function crc(i) { - - var {x, y} = pos(i) - X.beginPath() - X.arc(x, y, z / 2, 0, 2 * PI) - X.fill() + var p = pos(i) + B() + X.arc(p.x, p.y, z / 2, 0, 2 * PI) + F() } function chs(i) { - var {x, y} = pos(i) - X.beginPath() + B() X.moveTo(x, y) X.lineTo(x * 10 * C(i.a), y * 10 * S(i.a)) X.lineTo(r(64), r(64)) - X.fill() + F() } function lch(i) { - var {x, y} = pos(i) - X.beginPath() + B() X.lineWidth = 5 X.strokeStyle = `hsl(0,0%,${i.c}%)` X.moveTo(x, y) @@ -59,23 +53,21 @@ } function hrt(i) { - var {x, y} = pos(i) X.fillRect(x, y, z, z) - X.beginPath() + B() X.arc(x + z / 2, y, z / 2, 0, 2 * PI, false) - X.fill() + F() X.closePath() - X.beginPath() + B() X.arc(x + z, y + z / 2, z / 2, 0, 2 * PI, false) - X.fill() + F() X.closePath() } function mov(i) { - i.x = i.x + s * C(i.a) i.y = i.y + s * S(i.a) @@ -92,7 +84,6 @@ } function frm(t) { - requestAnimationFrame(frm) var dt = t - l