Some cleaning up and organization, eslint
This commit is contained in:
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12
.eslintrc.json
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12
.eslintrc.json
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{
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"parserOptions": {
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"ecmaVersion": 6,
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"sourceType": "module",
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"ecmaFeatures": {
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"jsx": true
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}
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},
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"rules": {
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"semi": "always"
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}
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}
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4
.eslintrc.yml
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4
.eslintrc.yml
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extends: standard
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plugins:
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- standard
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- promise
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@ -2,3 +2,7 @@
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padding: 0;
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padding: 0;
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margin: 0;
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margin: 0;
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}
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}
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html {
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overflow: hidden;
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}
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@ -1,10 +1,11 @@
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<html lang="en">
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<html lang="en">
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<head>
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<head>
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<title>Pixi.js stuff</title>
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<title>Proximity Structures</title>
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<link rel="stylesheet" href="style.css">
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<link rel="stylesheet" href="css/style.css">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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</head>
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</head>
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<body>
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<body>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/pixi.js/4.2.2/pixi.min.js"></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/pixi.js/4.2.2/pixi.min.js"></script>
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<script src="tutorial.js"></script>
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<script src="js/field.js"></script>
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</body>
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</body>
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</html>
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</html>
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111
js/easingFunctions.js
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111
js/easingFunctions.js
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// These functions are taken from: https://github.com/danro/jquery-easing/blob/master/jquery.easing.js
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// (with slight modifications to the function signatures)
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function linearTweening (t, b, c, d) {
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// t = current time
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// b = start value
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// c = change in value
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// d = duration
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return ((c * t) / d) + b
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}
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function easeOutBounce (t, b, c, d) {
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if ((t /= d) < (1 / 2.75)) {
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return c * (7.5625 * t * t) + b
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} else if (t < (2 / 2.75)) {
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return c * (7.5625 * (t -= (1.5 / 2.75)) * t + 0.75) + b
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} else if (t < (2.5 / 2.75)) {
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return c * (7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375) + b
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} else {
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return c * (7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375) + b
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}
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}
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function easeInSine (t, b, c, d) {
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return -c * Math.cos(t / d * (Math.PI / 2)) + c + b
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}
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function easeOutSine (t, b, c, d) {
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return c * Math.sin(t / d * (Math.PI / 2)) + b
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}
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function easeInOutSine (t, b, c, d) {
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return -c / 2 * (Math.cos(Math.PI * t / d) - 1) + b
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}
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function easeInQuad (t, b, c, d) {
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return c * (t /= d) * t + b
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}
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function easeOutQuad (t, b, c, d) {
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return -c * (t /= d) * (t - 2) + b
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}
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function easeInOutQuad (t, b, c, d) {
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if ((t /= d / 2) < 1) return c / 2 * t * t + b
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return -c / 2 * ((--t) * (t - 2) - 1) + b
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}
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function easeInCubic (t, b, c, d) {
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return c * (t /= d) * t * t + b
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}
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function easeOutCubic (t, b, c, d) {
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return c * ((t = t / d - 1) * t * t + 1) + b
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}
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function easeInOutCubic (t, b, c, d) {
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if ((t /= d / 2) < 1) return c / 2 * t * t * t + b
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return c / 2 * ((t -= 2) * t * t + 2) + b
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}
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function easeInExpo (t, b, c, d) {
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return (t == 0) ? b : c * Math.pow(2, 10 * (t / d - 1)) + b
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}
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function easeOutExpo (t, b, c, d) {
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return (t == d) ? b + c : c * (-Math.pow(2, -10 * t / d) + 1) + b
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}
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function easeInOutExpo (t, b, c, d) {
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if (t == 0) return b
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if (t == d) return b + c
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if ((t /= d / 2) < 1) return c / 2 * Math.pow(2, 10 * (t - 1)) + b
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return c / 2 * (-Math.pow(2, -10 * --t) + 2) + b
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}
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function easeInElastic (t, b, c, d) {
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var s = 1.70158; var p = 0; var a = c
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if (t == 0) return b; if ((t /= d) == 1) return b + c; if (!p) p = d * 0.3
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if (a < Math.abs(c)) { a = c; var s = p / 4 } else var s = p / (2 * Math.PI) * Math.asin(c / a)
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return -(a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) / p)) + b
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}
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function easeOutElastic (t, b, c, d) {
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var s = 1.70158; var p = 0; var a = c
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if (t == 0) return b; if ((t /= d) == 1) return b + c; if (!p) p = d * 0.3
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if (a < Math.abs(c)) { a = c; var s = p / 4 } else var s = p / (2 * Math.PI) * Math.asin(c / a)
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return a * Math.pow(2, -10 * t) * Math.sin((t * d - s) * (2 * Math.PI) / p) + c + b
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}
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function easeInOutElastic (t, b, c, d) {
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var s = 1.70158; var p = 0; var a = c
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if (t == 0) return b; if ((t /= d / 2) == 2) return b + c; if (!p) p = d * (0.3 * 1.5)
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if (a < Math.abs(c)) { a = c; var s = p / 4 } else var s = p / (2 * Math.PI) * Math.asin(c / a)
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if (t < 1) return -0.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) / p)) + b
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return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) / p) * 0.5 + c + b
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}
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function easeInCirc (t, b, c, d) {
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return -c * (Math.sqrt(1 - (t /= d) * t) - 1) + b
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}
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function easeOutCirc (t, b, c, d) {
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return c * Math.sqrt(1 - (t = t / d - 1) * t) + b
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}
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function easeInOutCirc (t, b, c, d) {
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if ((t /= d / 2) < 1) return -c / 2 * (Math.sqrt(1 - t * t) - 1) + b
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return c / 2 * (Math.sqrt(1 - (t -= 2) * t) + 1) + b
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}
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455
js/field.js
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455
js/field.js
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var renderer,
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stage,
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screenWidth,
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screenHeight,
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counter,
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totalScreenPixels,
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cycleDuration,
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connectionDistance,
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connectionLimit,
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pointShiftDistance,
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colorShiftAmt,
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disconnectedColorShiftAmt,
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polygon,
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startPoints,
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polygonPoints,
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tweeningFns,
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lastLoop,
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thisLoop,
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fps,
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fpsGraphic,
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scrollDelta,
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pointShiftBiasX,
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pointShiftBiasY
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function randomInt (min, max) {
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// inclusive of min and max
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return Math.floor(Math.random() * (max - min + 1)) + min
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}
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function linearTweening (t, b, c, d) {
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// t = current time
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// b = start value
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// c = change in value
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// d = duration
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return ((c * t) / d) + b
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}
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function easeOutBounce (t, b, c, d) {
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if ((t /= d) < (1 / 2.75)) {
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return c * (7.5625 * t * t) + b
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} else if (t < (2 / 2.75)) {
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return c * (7.5625 * (t -= (1.5 / 2.75)) * t + 0.75) + b
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} else if (t < (2.5 / 2.75)) {
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return c * (7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375) + b
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} else {
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return c * (7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375) + b
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}
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}
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function easeInSine (t, b, c, d) {
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return -c * Math.cos(t / d * (Math.PI / 2)) + c + b
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}
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function easeOutSine (t, b, c, d) {
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return c * Math.sin(t / d * (Math.PI / 2)) + b
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}
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function easeInOutSine (t, b, c, d) {
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return -c / 2 * (Math.cos(Math.PI * t / d) - 1) + b
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}
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function easeInQuad (t, b, c, d) {
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return c * (t /= d) * t + b
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}
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function easeOutQuad (t, b, c, d) {
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return -c * (t /= d) * (t - 2) + b
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}
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function easeInOutQuad (t, b, c, d) {
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if ((t /= d / 2) < 1) return c / 2 * t * t + b
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return -c / 2 * ((--t) * (t - 2) - 1) + b
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}
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function easeInCubic (t, b, c, d) {
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return c * (t /= d) * t * t + b
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}
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function easeOutCubic (t, b, c, d) {
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return c * ((t = t / d - 1) * t * t + 1) + b
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}
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function easeInOutCubic (t, b, c, d) {
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if ((t /= d / 2) < 1) return c / 2 * t * t * t + b
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return c / 2 * ((t -= 2) * t * t + 2) + b
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}
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function easeInExpo (t, b, c, d) {
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return (t == 0) ? b : c * Math.pow(2, 10 * (t / d - 1)) + b
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}
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function easeOutExpo (t, b, c, d) {
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return (t == d) ? b + c : c * (-Math.pow(2, -10 * t / d) + 1) + b
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}
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function easeInOutExpo (t, b, c, d) {
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if (t == 0) return b
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if (t == d) return b + c
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if ((t /= d / 2) < 1) return c / 2 * Math.pow(2, 10 * (t - 1)) + b
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return c / 2 * (-Math.pow(2, -10 * --t) + 2) + b
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}
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function easeInElastic (t, b, c, d) {
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var s = 1.70158; var p = 0; var a = c
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if (t == 0) return b; if ((t /= d) == 1) return b + c; if (!p) p = d * 0.3
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if (a < Math.abs(c)) { a = c; var s = p / 4 } else var s = p / (2 * Math.PI) * Math.asin(c / a)
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return -(a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) / p)) + b
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}
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function easeOutElastic (t, b, c, d) {
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var s = 1.70158; var p = 0; var a = c
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if (t == 0) return b; if ((t /= d) == 1) return b + c; if (!p) p = d * 0.3
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if (a < Math.abs(c)) { a = c; var s = p / 4 } else var s = p / (2 * Math.PI) * Math.asin(c / a)
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return a * Math.pow(2, -10 * t) * Math.sin((t * d - s) * (2 * Math.PI) / p) + c + b
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}
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function easeInOutElastic (t, b, c, d) {
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var s = 1.70158; var p = 0; var a = c
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if (t == 0) return b; if ((t /= d / 2) == 2) return b + c; if (!p) p = d * (0.3 * 1.5)
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if (a < Math.abs(c)) { a = c; var s = p / 4 } else var s = p / (2 * Math.PI) * Math.asin(c / a)
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if (t < 1) return -0.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) / p)) + b
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return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) / p) * 0.5 + c + b
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}
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function easeInCirc (t, b, c, d) {
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return -c * (Math.sqrt(1 - (t /= d) * t) - 1) + b
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}
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function easeOutCirc (t, b, c, d) {
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return c * Math.sqrt(1 - (t = t / d - 1) * t) + b
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}
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function easeInOutCirc (t, b, c, d) {
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if ((t /= d / 2) < 1) return -c / 2 * (Math.sqrt(1 - t * t) - 1) + b
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return c / 2 * (Math.sqrt(1 - (t -= 2) * t) + 1) + b
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}
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// from: http://stackoverflow.com/a/5624139
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// modified to return integer literal
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function rgbToHex (color) {
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return parseInt(((1 << 24) + (color.r << 16) + (color.g << 8) + color.b).toString(16).slice(1), 16)
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}
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/* Choose a random RGB color */
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function randomColor () {
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return {
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r: Math.floor(Math.random() * (255 + 1)),
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g: Math.floor(Math.random() * (255 + 1)),
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b: Math.floor(Math.random() * (255 + 1))
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}
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}
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/* Find the average of two RGB colors and return one RGB of that color */
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function averageColor (color1, color2) {
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return {
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r: Math.round((color1.r + color2.r) / 2),
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g: Math.round((color1.g + color2.g) / 2),
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b: Math.round((color1.b + color2.b) / 2)
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}
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}
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/*
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* Find the average of two RGB colors where color1 is weighted against color2 by the given weight.
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* weight is a decimal between 0 and 1.
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*/
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function weightedAverageColor (color1, color2, weight) {
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return {
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r: Math.round(((color1.r * (2 * weight)) + (color2.r * (2 * (1 - weight)))) / 2),
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g: Math.round(((color1.g * (2 * weight)) + (color2.g * (2 * (1 - weight)))) / 2),
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b: Math.round(((color1.b * (2 * weight)) + (color2.b * (2 * (1 - weight)))) / 2)
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}
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}
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/* Darken the color by a factor of 0 to 1, where 1 is black and 0 is white */
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function shadeColor (color, shadeFactor) {
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return {
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||||||
|
r: Math.round(color.r * (1 - shadeFactor)),
|
||||||
|
g: Math.round(color.g * (1 - shadeFactor)),
|
||||||
|
b: Math.round(color.b * (1 - shadeFactor))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Given a color component (red, green, or blue int), randomly shift by configurable amount */
|
||||||
|
function shiftColorComponent (component, maxShiftAmt) {
|
||||||
|
var shiftAmt = randomInt(maxShiftAmt * -1, maxShiftAmt),
|
||||||
|
newComponent = component + shiftAmt
|
||||||
|
if ((newComponent < 0) || (newComponent > 255)) {
|
||||||
|
newComponent = component - shiftAmt
|
||||||
|
}
|
||||||
|
return newComponent
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Randomly shift a RGB color by a configurable amount and return new RGB color */
|
||||||
|
function shiftColor (color, maxShiftAmt) {
|
||||||
|
return {
|
||||||
|
r: shiftColorComponent(color.r, maxShiftAmt),
|
||||||
|
g: shiftColorComponent(color.g, maxShiftAmt),
|
||||||
|
b: shiftColorComponent(color.b, maxShiftAmt)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
function distance (point1, point2) {
|
||||||
|
var a = point1[0] - point2[0]
|
||||||
|
var b = point1[1] - point2[1]
|
||||||
|
return Math.sqrt(a * a + b * b)
|
||||||
|
}
|
||||||
|
|
||||||
|
function getRandomPoints (numPoints, maxX, maxY, tweeningFns) {
|
||||||
|
var points = [],
|
||||||
|
i, x, y, cycleStart, easingFn
|
||||||
|
for (i = 0; i < numPoints; i++) {
|
||||||
|
x = randomInt(0, maxX - 1)
|
||||||
|
y = randomInt(0, maxY - 1)
|
||||||
|
cycleStart = randomInt(0, cycleDuration - 1)
|
||||||
|
color = randomColor()
|
||||||
|
easingFn = randomInt(0, tweeningFns.length - 1)
|
||||||
|
points[i] = [x, y, cycleStart, color, easingFn]
|
||||||
|
}
|
||||||
|
return points
|
||||||
|
}
|
||||||
|
|
||||||
|
function shiftPointCounter (original, maxShiftAmt) {
|
||||||
|
var shiftAmt = randomInt(maxShiftAmt * -1, 0),
|
||||||
|
newCounter = original + shiftAmt
|
||||||
|
if (newCounter < 0) {
|
||||||
|
newCounter = cycleDuration + shiftAmt
|
||||||
|
}
|
||||||
|
return newCounter
|
||||||
|
}
|
||||||
|
|
||||||
|
function shiftPoints (points, maxShiftAmt, counter, tweeningFns) {
|
||||||
|
var i, shiftX, shiftY, candidateX, candidateY
|
||||||
|
for (i = 0; i < points.original.length; i++) {
|
||||||
|
if (points.target[i][2] >= cycleDuration) {
|
||||||
|
// cycleDuration was reduced and now this point's cycle is out of bounds. Randomly pick a new valid one.
|
||||||
|
points.target[i][2] = randomInt(0, cycleDuration - 1)
|
||||||
|
}
|
||||||
|
if (points.target[i][2] === counter) {
|
||||||
|
points.original[i] = points.target[i].slice()
|
||||||
|
shiftX = randomInt(maxShiftAmt * -1, maxShiftAmt)
|
||||||
|
shiftY = randomInt(maxShiftAmt * -1, maxShiftAmt)
|
||||||
|
if (((shiftX < 0) && (pointShiftBiasX === 1)) || ((shiftX > 0) && (pointShiftBiasX === -1))) {
|
||||||
|
shiftX = shiftX * -1
|
||||||
|
}
|
||||||
|
if (((shiftY < 0) && (pointShiftBiasY === 1)) || ((shiftY > 0) && (pointShiftBiasY === -1))) {
|
||||||
|
shiftY = shiftY * -1
|
||||||
|
}
|
||||||
|
candidateX = points.original[i][0] + shiftX
|
||||||
|
candidateY = points.original[i][1] + shiftY
|
||||||
|
if ((candidateX > screenWidth) || (candidateX < 0)) {
|
||||||
|
candidateX = points.original[i][0] - shiftX
|
||||||
|
}
|
||||||
|
if ((candidateY > screenHeight) || (candidateY < 0)) {
|
||||||
|
candidateY = points.original[i][1] - shiftY
|
||||||
|
}
|
||||||
|
points.target[i][0] = candidateX
|
||||||
|
points.target[i][1] = candidateY
|
||||||
|
points.target[i][4] = randomInt(0, tweeningFns.length - 1)
|
||||||
|
// FIXME: buggy, makes points jump around too fast
|
||||||
|
// points.target[i][2] = shiftPointCounter(points.original[i][2], maxShiftAmt);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
// clear pointShiftBiases now that they have been "used"
|
||||||
|
pointShiftBiasX = 0
|
||||||
|
pointShiftBiasY = 0
|
||||||
|
|
||||||
|
return points
|
||||||
|
}
|
||||||
|
|
||||||
|
function redistributeCycles (points) {
|
||||||
|
for (i = 0; i < points.original.length; i++) {
|
||||||
|
points.target[i][2] = randomInt(0, cycleDuration - 1)
|
||||||
|
}
|
||||||
|
return points
|
||||||
|
}
|
||||||
|
|
||||||
|
function relativeCounter (counter, targetStart) {
|
||||||
|
var relCounter = counter - targetStart
|
||||||
|
if (relCounter < 0) {
|
||||||
|
return cycleDuration + relCounter
|
||||||
|
}
|
||||||
|
return relCounter
|
||||||
|
}
|
||||||
|
|
||||||
|
function drawPolygon (polygon, points, counter, tweeningFns) {
|
||||||
|
var i, j, easingFn, avgColor, connectionCount, dist, proximity
|
||||||
|
// calculate vectors
|
||||||
|
for (i = 0; i < points.original.length; i++) {
|
||||||
|
easingFn = tweeningFns[points.target[i][4]]
|
||||||
|
points.tweened[i][0] = easingFn(relativeCounter(counter, points.target[i][2]), points.original[i][0], points.target[i][0] - points.original[i][0], cycleDuration)
|
||||||
|
points.tweened[i][1] = easingFn(relativeCounter(counter, points.target[i][2]), points.original[i][1], points.target[i][1] - points.original[i][1], cycleDuration)
|
||||||
|
}
|
||||||
|
// draw lines
|
||||||
|
for (i = 0; i < points.original.length; i++) {
|
||||||
|
connectionCount = 0
|
||||||
|
for (j = i + 1; j < points.original.length; j++) {
|
||||||
|
// TODO pick the N (connectionLimit) closest connections instead of the first N that occur sequentially.
|
||||||
|
if (connectionCount >= connectionLimit) break
|
||||||
|
dist = distance(points.tweened[i], points.tweened[j])
|
||||||
|
connectivity = dist / connectionDistance
|
||||||
|
if ((j !== i) && (dist <= connectionDistance)) {
|
||||||
|
// find average color of both points
|
||||||
|
if ((points.tweened[i][2] === counter) || (points.tweened[j][2] === counter)) {
|
||||||
|
// avgColor = shiftColor(avgColor, Math.round(colorShiftAmt * (1 - connectivity)));
|
||||||
|
points.tweened[i][3] = weightedAverageColor(points.tweened[i][3], points.tweened[j][3], connectivity)
|
||||||
|
points.tweened[j][3] = weightedAverageColor(points.tweened[j][3], points.tweened[i][3], connectivity)
|
||||||
|
}
|
||||||
|
avgColor = averageColor(points.tweened[i][3], points.tweened[j][3])
|
||||||
|
shadedColor = shadeColor(avgColor, connectivity)
|
||||||
|
polygon.lineStyle(1, rgbToHex(shadedColor), 1)
|
||||||
|
|
||||||
|
polygon.moveTo(points.tweened[i][0], points.tweened[i][1])
|
||||||
|
polygon.lineTo(points.tweened[j][0], points.tweened[j][1])
|
||||||
|
connectionCount = connectionCount + 1
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (connectionCount === 0) {
|
||||||
|
points.tweened[i][3] = shiftColor(points.tweened[i][3], disconnectedColorShiftAmt)
|
||||||
|
}
|
||||||
|
|
||||||
|
// draw vectors
|
||||||
|
polygon.lineStyle(1, rgbToHex(points.tweened[i][3]), 1)
|
||||||
|
polygon.drawCircle(points.tweened[i][0], points.tweened[i][1], 1)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
function loop () {
|
||||||
|
screenWidth = document.documentElement.clientWidth
|
||||||
|
screenHeight = document.documentElement.clientHeight
|
||||||
|
renderer.resize(screenWidth, screenHeight)
|
||||||
|
|
||||||
|
polygon.clear()
|
||||||
|
|
||||||
|
drawPolygon(polygon, polygonPoints, counter, tweeningFns)
|
||||||
|
|
||||||
|
counter += 1
|
||||||
|
counter = counter % cycleDuration
|
||||||
|
|
||||||
|
if (counter === 0) {
|
||||||
|
thisLoop = new Date()
|
||||||
|
fps = Math.round((1000 / (thisLoop - lastLoop)) * cycleDuration)
|
||||||
|
fpsGraphic.setText(fps.toString())
|
||||||
|
lastLoop = thisLoop
|
||||||
|
}
|
||||||
|
|
||||||
|
polygonPoints = shiftPoints(polygonPoints, pointShiftDistance, counter, tweeningFns)
|
||||||
|
|
||||||
|
// var mousePosition = renderer.plugins.interaction.mouse.global;
|
||||||
|
// triangle.x = mousePosition.x;
|
||||||
|
// triangle.y = mousePosition.y;
|
||||||
|
|
||||||
|
// If user scrolled, modify cycleDuration by amount scrolled
|
||||||
|
if (scrollDelta !== 0) {
|
||||||
|
cycleDuration = cycleDuration + scrollDelta
|
||||||
|
if (cycleDuration < 1) {
|
||||||
|
cycleDuration = 1
|
||||||
|
}
|
||||||
|
scrollDelta = 0
|
||||||
|
polygonPoints = redistributeCycles(polygonPoints)
|
||||||
|
}
|
||||||
|
|
||||||
|
// Tell the `renderer` to `render` the `stage`
|
||||||
|
renderer.render(stage)
|
||||||
|
requestAnimationFrame(loop)
|
||||||
|
}
|
||||||
|
|
||||||
|
function loopStart () {
|
||||||
|
screenWidth = document.documentElement.clientWidth
|
||||||
|
screenHeight = document.documentElement.clientHeight
|
||||||
|
// Create the renderer
|
||||||
|
renderer = PIXI.autoDetectRenderer(screenWidth, screenHeight, {antialias: true, resolution: 2})
|
||||||
|
|
||||||
|
// Add the canvas to the HTML document
|
||||||
|
document.body.appendChild(renderer.view)
|
||||||
|
|
||||||
|
// Create a container object called the `stage`
|
||||||
|
stage = new PIXI.Container()
|
||||||
|
|
||||||
|
renderer.view.style.position = 'absolute'
|
||||||
|
renderer.view.style.display = 'block'
|
||||||
|
renderer.autoResize = true
|
||||||
|
|
||||||
|
counter = 0
|
||||||
|
totalScreenPixels = screenWidth + screenHeight
|
||||||
|
cycleDuration = 60
|
||||||
|
connectionDistance = Math.min(Math.round(totalScreenPixels / 16), 75)
|
||||||
|
connectionLimit = 10
|
||||||
|
pointShiftDistance = Math.round(totalScreenPixels / 45)
|
||||||
|
colorShiftAmt = 80
|
||||||
|
disconnectedColorShiftAmt = 10
|
||||||
|
polygon = new PIXI.Graphics()
|
||||||
|
tweeningFns = [
|
||||||
|
linearTweening,
|
||||||
|
easeInSine,
|
||||||
|
easeOutSine,
|
||||||
|
easeInOutSine,
|
||||||
|
easeInQuad,
|
||||||
|
easeOutQuad,
|
||||||
|
easeInOutQuad,
|
||||||
|
easeInCubic,
|
||||||
|
easeOutCubic,
|
||||||
|
easeInOutCubic
|
||||||
|
// easeOutBounce,
|
||||||
|
// easeInElastic,
|
||||||
|
// easeOutElastic,
|
||||||
|
// easeInOutElastic,
|
||||||
|
// easeInExpo,
|
||||||
|
// easeOutExpo,
|
||||||
|
// easeInOutExpo,
|
||||||
|
// easeInCirc,
|
||||||
|
// easeOutCirc,
|
||||||
|
// easeInOutCirc
|
||||||
|
]
|
||||||
|
startPoints = getRandomPoints(Math.round(totalScreenPixels / 6), screenWidth, screenHeight, tweeningFns)
|
||||||
|
polygonPoints = {
|
||||||
|
original: startPoints,
|
||||||
|
target: JSON.parse(JSON.stringify(startPoints)),
|
||||||
|
tweened: JSON.parse(JSON.stringify(startPoints))
|
||||||
|
}
|
||||||
|
stage.addChild(polygon)
|
||||||
|
|
||||||
|
fpsGraphic = new PIXI.Text('0', {font: '25px monospace', fill: 'yellow'})
|
||||||
|
fpsGraphic.x = 0
|
||||||
|
fpsGraphic.y = 0
|
||||||
|
stage.addChild(fpsGraphic)
|
||||||
|
|
||||||
|
lastLoop = new Date()
|
||||||
|
|
||||||
|
scrollDelta = 0
|
||||||
|
|
||||||
|
requestAnimationFrame(loop)
|
||||||
|
}
|
||||||
|
|
||||||
|
window.onload = loopStart
|
||||||
|
|
||||||
|
window.addEventListener('mousewheel', function (e) {
|
||||||
|
scrollDelta = scrollDelta + ((e.deltaY / 100) * 3)
|
||||||
|
})
|
||||||
|
|
||||||
|
// TODO: use jquery PEP to allow user to "pull" at a point elastically
|
||||||
|
// window.addEventListener('click', function(e) {
|
||||||
|
// });
|
||||||
|
|
||||||
|
window.addEventListener('keydown', function (e) {
|
||||||
|
if (e.keyCode === 37) { // left
|
||||||
|
pointShiftBiasX = -1
|
||||||
|
} else if (e.keyCode === 38) { // up
|
||||||
|
pointShiftBiasY = -1
|
||||||
|
} else if (e.keyCode === 39) { // right
|
||||||
|
pointShiftBiasX = 1
|
||||||
|
} else if (e.keyCode === 40) { // down
|
||||||
|
pointShiftBiasY = 1
|
||||||
|
}
|
||||||
|
})
|
||||||
129
js/tutorial.js
Normal file
129
js/tutorial.js
Normal file
@ -0,0 +1,129 @@
|
|||||||
|
// Create the renderer
|
||||||
|
var renderer = PIXI.autoDetectRenderer(256, 256, {antialias: true})
|
||||||
|
|
||||||
|
// Add the canvas to the HTML document
|
||||||
|
document.body.appendChild(renderer.view)
|
||||||
|
|
||||||
|
// Create a container object called the `stage`
|
||||||
|
var stage = new PIXI.Container()
|
||||||
|
|
||||||
|
renderer.view.style.position = 'absolute'
|
||||||
|
renderer.view.style.display = 'block'
|
||||||
|
renderer.autoResize = true
|
||||||
|
renderer.resize(window.innerWidth, window.innerHeight)
|
||||||
|
|
||||||
|
var counter = 0,
|
||||||
|
cycleDuration = 60,
|
||||||
|
tri = {
|
||||||
|
original: [
|
||||||
|
[0, 0],
|
||||||
|
[-50, 50],
|
||||||
|
[50, 50]
|
||||||
|
],
|
||||||
|
target: [
|
||||||
|
[0, 0],
|
||||||
|
[-50, 50],
|
||||||
|
[50, 50]
|
||||||
|
]
|
||||||
|
},
|
||||||
|
triangle = new PIXI.Graphics()
|
||||||
|
|
||||||
|
stage.addChild(triangle)
|
||||||
|
|
||||||
|
function randomInt (min, max) {
|
||||||
|
return Math.floor(Math.random() * (max - min + 1)) + min
|
||||||
|
}
|
||||||
|
|
||||||
|
function linearTweening (t, b, c, d) {
|
||||||
|
// t = current time
|
||||||
|
// b = start value
|
||||||
|
// c = change in value
|
||||||
|
// d = duration
|
||||||
|
return ((c * t) / d) + b
|
||||||
|
}
|
||||||
|
|
||||||
|
function easeOutBounce (t, b, c, d) {
|
||||||
|
if ((t /= d) < (1 / 2.75)) {
|
||||||
|
return c * (7.5625 * t * t) + b
|
||||||
|
} else if (t < (2 / 2.75)) {
|
||||||
|
return c * (7.5625 * (t -= (1.5 / 2.75)) * t + 0.75) + b
|
||||||
|
} else if (t < (2.5 / 2.75)) {
|
||||||
|
return c * (7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375) + b
|
||||||
|
} else {
|
||||||
|
return c * (7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375) + b
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
function easeInOutExpo (t, b, c, d) {
|
||||||
|
if (t == 0) return b
|
||||||
|
if (t == d) return b + c
|
||||||
|
if ((t /= d / 2) < 1) return c / 2 * Math.pow(2, 10 * (t - 1)) + b
|
||||||
|
return c / 2 * (-Math.pow(2, -10 * --t) + 2) + b
|
||||||
|
}
|
||||||
|
|
||||||
|
function drawLine (x1, y1, x2, y2) {
|
||||||
|
var line = new PIXI.Graphics()
|
||||||
|
line.lineStyle(1, 0xFFFFFF, 1)
|
||||||
|
line.moveTo(x1, y1)
|
||||||
|
line.lineTo(x2, y2)
|
||||||
|
line.x = x1
|
||||||
|
line.y = y1
|
||||||
|
stage.addChild(line)
|
||||||
|
}
|
||||||
|
|
||||||
|
function drawShiftingTriangle (triangle, originalPoints, targetPoints, counter, easingFn) {
|
||||||
|
var i = 0
|
||||||
|
if (counter === 0) {
|
||||||
|
// Given originalPoints, randomly shifts them by some amount, draws it, and returns new array of points
|
||||||
|
var newPoints = []
|
||||||
|
// Start new cycle. New original is old target. New target is newly generated newPoints.
|
||||||
|
originalPoints = targetPoints
|
||||||
|
|
||||||
|
for (i = 0; i < originalPoints.length; i++) {
|
||||||
|
newPoints[i] = [originalPoints[i][0] + randomInt(-10, 10),
|
||||||
|
originalPoints[i][1] + randomInt(-10, 10)]
|
||||||
|
}
|
||||||
|
targetPoints = newPoints
|
||||||
|
}
|
||||||
|
triangle.lineStyle(1, 0xFAFAFA, 1)
|
||||||
|
// triangle.beginFill(0x66FF33);
|
||||||
|
for (i = 0; i < 4; i++) {
|
||||||
|
if (i === 0) {
|
||||||
|
triangle.moveTo(easingFn(counter, originalPoints[0][0], targetPoints[0][0] - originalPoints[0][0], cycleDuration),
|
||||||
|
easingFn(counter, originalPoints[0][1], targetPoints[0][1] - originalPoints[0][1], cycleDuration))
|
||||||
|
} else if (i === 3) {
|
||||||
|
triangle.lineTo(easingFn(counter, originalPoints[0][0], targetPoints[0][0] - originalPoints[0][0], cycleDuration),
|
||||||
|
easingFn(counter, originalPoints[0][1], targetPoints[0][1] - originalPoints[0][1], cycleDuration))
|
||||||
|
} else {
|
||||||
|
triangle.lineTo(easingFn(counter, originalPoints[i][0], targetPoints[i][0] - originalPoints[i][0], cycleDuration),
|
||||||
|
easingFn(counter, originalPoints[i][1], targetPoints[i][1] - originalPoints[i][1], cycleDuration))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
// triangle.endFill();
|
||||||
|
|
||||||
|
return {
|
||||||
|
original: originalPoints,
|
||||||
|
target: targetPoints
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
function loop () {
|
||||||
|
requestAnimationFrame(loop)
|
||||||
|
|
||||||
|
triangle.clear()
|
||||||
|
|
||||||
|
// drawLine(0, 0, counter, counter);
|
||||||
|
tri = drawShiftingTriangle(triangle, tri.original, tri.target, counter, linearTweening)
|
||||||
|
|
||||||
|
counter += 1
|
||||||
|
counter = counter % cycleDuration
|
||||||
|
|
||||||
|
var mousePosition = renderer.plugins.interaction.mouse.global
|
||||||
|
triangle.x = mousePosition.x
|
||||||
|
triangle.y = mousePosition.y
|
||||||
|
|
||||||
|
// Tell the `renderer` to `render` the `stage`
|
||||||
|
renderer.render(stage)
|
||||||
|
}
|
||||||
|
|
||||||
|
loop()
|
||||||
5
notes.md
Normal file
5
notes.md
Normal file
@ -0,0 +1,5 @@
|
|||||||
|
Space the dots out more. Don't let them get close.
|
||||||
|
|
||||||
|
Rotate the dots around the page in a circular pattern.
|
||||||
|
|
||||||
|
|
||||||
24
package.json
Normal file
24
package.json
Normal file
@ -0,0 +1,24 @@
|
|||||||
|
{
|
||||||
|
"name": "proximity-structures",
|
||||||
|
"version": "1.0.0",
|
||||||
|
"description": "",
|
||||||
|
"main": "index.js",
|
||||||
|
"scripts": {
|
||||||
|
"eslint": "eslint",
|
||||||
|
"test": "echo \"Error: no test specified\" && exit 1"
|
||||||
|
},
|
||||||
|
"repository": {
|
||||||
|
"type": "git",
|
||||||
|
"url": "git@git.hallada.net:pixi.git"
|
||||||
|
},
|
||||||
|
"author": "Tyler Hallada",
|
||||||
|
"license": "ISC",
|
||||||
|
"devDependencies": {
|
||||||
|
"eslint": "^3.17.0",
|
||||||
|
"eslint-config-airbnb-base": "^11.1.1",
|
||||||
|
"eslint-config-standard": "^7.0.0",
|
||||||
|
"eslint-plugin-import": "^2.2.0",
|
||||||
|
"eslint-plugin-promise": "^3.5.0",
|
||||||
|
"eslint-plugin-standard": "^2.1.1"
|
||||||
|
}
|
||||||
|
}
|
||||||
129
tutorial.js
129
tutorial.js
@ -1,129 +0,0 @@
|
|||||||
//Create the renderer
|
|
||||||
var renderer = PIXI.autoDetectRenderer(256, 256, {antialias: true});
|
|
||||||
|
|
||||||
//Add the canvas to the HTML document
|
|
||||||
document.body.appendChild(renderer.view);
|
|
||||||
|
|
||||||
//Create a container object called the `stage`
|
|
||||||
var stage = new PIXI.Container();
|
|
||||||
|
|
||||||
renderer.view.style.position = "absolute";
|
|
||||||
renderer.view.style.display = "block";
|
|
||||||
renderer.autoResize = true;
|
|
||||||
renderer.resize(window.innerWidth, window.innerHeight);
|
|
||||||
|
|
||||||
var counter = 0,
|
|
||||||
cycleDuration = 60,
|
|
||||||
tri = {
|
|
||||||
original: [
|
|
||||||
[0, 0],
|
|
||||||
[-50, 50],
|
|
||||||
[50, 50]
|
|
||||||
],
|
|
||||||
target: [
|
|
||||||
[0, 0],
|
|
||||||
[-50, 50],
|
|
||||||
[50, 50]
|
|
||||||
]
|
|
||||||
},
|
|
||||||
triangle = new PIXI.Graphics();
|
|
||||||
|
|
||||||
stage.addChild(triangle);
|
|
||||||
|
|
||||||
function randomInt(min, max) {
|
|
||||||
return Math.floor(Math.random() * (max - min + 1)) + min;
|
|
||||||
}
|
|
||||||
|
|
||||||
function linearTweening(t, b, c, d) {
|
|
||||||
// t = current time
|
|
||||||
// b = start value
|
|
||||||
// c = change in value
|
|
||||||
// d = duration
|
|
||||||
return ((c * t) / d) + b;
|
|
||||||
}
|
|
||||||
|
|
||||||
function easeOutBounce(t, b, c, d) {
|
|
||||||
if ((t/=d) < (1/2.75)) {
|
|
||||||
return c*(7.5625*t*t) + b;
|
|
||||||
} else if (t < (2/2.75)) {
|
|
||||||
return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;
|
|
||||||
} else if (t < (2.5/2.75)) {
|
|
||||||
return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;
|
|
||||||
} else {
|
|
||||||
return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
function easeInOutExpo(t, b, c, d) {
|
|
||||||
if (t==0) return b;
|
|
||||||
if (t==d) return b+c;
|
|
||||||
if ((t/=d/2) < 1) return c/2 * Math.pow(2, 10 * (t - 1)) + b;
|
|
||||||
return c/2 * (-Math.pow(2, -10 * --t) + 2) + b;
|
|
||||||
}
|
|
||||||
|
|
||||||
function drawLine(x1, y1, x2, y2) {
|
|
||||||
var line = new PIXI.Graphics();
|
|
||||||
line.lineStyle(1, 0xFFFFFF, 1);
|
|
||||||
line.moveTo(x1, y1);
|
|
||||||
line.lineTo(x2, y2);
|
|
||||||
line.x = x1;
|
|
||||||
line.y = y1;
|
|
||||||
stage.addChild(line);
|
|
||||||
}
|
|
||||||
|
|
||||||
function drawShiftingTriangle(triangle, originalPoints, targetPoints, counter, easingFn) {
|
|
||||||
var i = 0;
|
|
||||||
if (counter === 0) {
|
|
||||||
// Given originalPoints, randomly shifts them by some amount, draws it, and returns new array of points
|
|
||||||
var newPoints = [];
|
|
||||||
// Start new cycle. New original is old target. New target is newly generated newPoints.
|
|
||||||
originalPoints = targetPoints;
|
|
||||||
|
|
||||||
for (i = 0; i < originalPoints.length; i++) {
|
|
||||||
newPoints[i] = [originalPoints[i][0] + randomInt(-10, 10),
|
|
||||||
originalPoints[i][1] + randomInt(-10, 10)];
|
|
||||||
}
|
|
||||||
targetPoints = newPoints;
|
|
||||||
}
|
|
||||||
triangle.lineStyle(1, 0xFAFAFA, 1);
|
|
||||||
// triangle.beginFill(0x66FF33);
|
|
||||||
for (i = 0; i < 4; i++) {
|
|
||||||
if (i === 0) {
|
|
||||||
triangle.moveTo(easingFn(counter, originalPoints[0][0], targetPoints[0][0] - originalPoints[0][0], cycleDuration),
|
|
||||||
easingFn(counter, originalPoints[0][1], targetPoints[0][1] - originalPoints[0][1], cycleDuration));
|
|
||||||
} else if (i === 3) {
|
|
||||||
triangle.lineTo(easingFn(counter, originalPoints[0][0], targetPoints[0][0] - originalPoints[0][0], cycleDuration),
|
|
||||||
easingFn(counter, originalPoints[0][1], targetPoints[0][1] - originalPoints[0][1], cycleDuration));
|
|
||||||
} else {
|
|
||||||
triangle.lineTo(easingFn(counter, originalPoints[i][0], targetPoints[i][0] - originalPoints[i][0], cycleDuration),
|
|
||||||
easingFn(counter, originalPoints[i][1], targetPoints[i][1] - originalPoints[i][1], cycleDuration));
|
|
||||||
}
|
|
||||||
}
|
|
||||||
// triangle.endFill();
|
|
||||||
|
|
||||||
return {
|
|
||||||
original: originalPoints,
|
|
||||||
target: targetPoints
|
|
||||||
};
|
|
||||||
}
|
|
||||||
|
|
||||||
function loop(){
|
|
||||||
requestAnimationFrame(loop);
|
|
||||||
|
|
||||||
triangle.clear();
|
|
||||||
|
|
||||||
// drawLine(0, 0, counter, counter);
|
|
||||||
tri = drawShiftingTriangle(triangle, tri.original, tri.target, counter, linearTweening);
|
|
||||||
|
|
||||||
counter += 1;
|
|
||||||
counter = counter % cycleDuration;
|
|
||||||
|
|
||||||
var mousePosition = renderer.plugins.interaction.mouse.global;
|
|
||||||
triangle.x = mousePosition.x;
|
|
||||||
triangle.y = mousePosition.y;
|
|
||||||
|
|
||||||
//Tell the `renderer` to `render` the `stage`
|
|
||||||
renderer.render(stage);
|
|
||||||
}
|
|
||||||
|
|
||||||
loop();
|
|
||||||
Loading…
Reference in New Issue
Block a user