Hover, tweeningSets, rebound, scroll time, debug
This commit is contained in:
parent
32f3166f52
commit
d32e236e05
277
js/field.js
277
js/field.js
@ -21,25 +21,76 @@ var fpsGraphic;
|
||||
var scrollDelta;
|
||||
var pointShiftBiasX;
|
||||
var pointShiftBiasY;
|
||||
var resolution = 2;
|
||||
var fpsEnabled = false;
|
||||
var resolution = 1;
|
||||
var debug = false;
|
||||
var fpsEnabled = debug;
|
||||
var allTweeningFns = [
|
||||
linearTweening,
|
||||
easeInSine,
|
||||
easeOutSine,
|
||||
easeInOutSine,
|
||||
easeInQuad,
|
||||
easeOutQuad,
|
||||
easeInOutQuad,
|
||||
easeInCubic,
|
||||
easeOutCubic,
|
||||
easeInOutCubic,
|
||||
easeInExpo,
|
||||
easeOutExpo,
|
||||
easeInOutExpo,
|
||||
easeInCirc,
|
||||
easeOutCirc,
|
||||
easeInOutCirc,
|
||||
easeOutBounce,
|
||||
easeInBounce,
|
||||
easeInOutBounce,
|
||||
easeInElastic,
|
||||
easeOutElastic,
|
||||
easeInOutElastic,
|
||||
easeInBack,
|
||||
easeOutBack,
|
||||
easeInOutBack
|
||||
];
|
||||
var tweeningSets = {
|
||||
linear: [0],
|
||||
meandering: [1, 2, 3, 4, 5, 6, 7, 8, 9],
|
||||
snappy: [10, 11, 12, 13, 14, 15],
|
||||
bouncy: [16, 17, 18],
|
||||
elastic: [19, 20, 21],
|
||||
back: [22, 23, 24]
|
||||
};
|
||||
var click = null;
|
||||
var hover = null;
|
||||
var lastHover = null;
|
||||
var clickEnd = false;
|
||||
var clickPullRateStart = 0.02;
|
||||
var clickMaxDistStart = 100;
|
||||
var clickPullRateInc = 0.0005;
|
||||
var clickPullRateMax = 0.1;
|
||||
var clickMaxDistInc = 5;
|
||||
var clickPullRateStart = 0.01;
|
||||
var clickMaxDistStart = 50;
|
||||
var clickPullRateInc = 0.005;
|
||||
var clickPullRateMax = 0.3;
|
||||
var clickMaxDistInc = 2;
|
||||
var clickMaxDistMax = 5000;
|
||||
var clickPullRate = clickPullRateStart;
|
||||
var clickMaxDist = clickMaxDistStart;
|
||||
var clickEndRebount = -10;
|
||||
var clickPullRateEnd = -0.6;
|
||||
var clickInertiaStart = -0.7;
|
||||
var clickInertia = clickInertiaStart;
|
||||
var clickInertiaEnd = 0.3;
|
||||
var clickTweeningFnStart = null;
|
||||
var clickTweeningFn = clickTweeningFnStart;
|
||||
var clickTweeningFnEnd = 12;
|
||||
var hoverPushRate = -0.05;
|
||||
var hoverInertia = 0.8;
|
||||
var hoverMaxDistStart = 75;
|
||||
var hoverMaxDistMax = 1000;
|
||||
var hoverMaxDist = hoverMaxDistStart;
|
||||
var hoverTweeningFn = 5;
|
||||
|
||||
function randomInt (min, max) {
|
||||
// inclusive of min and max
|
||||
return Math.floor(Math.random() * (max - min + 1)) + min;
|
||||
}
|
||||
|
||||
/* eslint-disable no-unused-vars */
|
||||
function linearTweening (t, b, c, d) {
|
||||
// t = current time
|
||||
// b = start value
|
||||
@ -48,7 +99,6 @@ function linearTweening (t, b, c, d) {
|
||||
return ((c * t) / d) + b;
|
||||
}
|
||||
|
||||
/* eslint-disable no-unused-vars */
|
||||
function easeOutBounce (t, b, c, d) {
|
||||
if ((t /= d) < (1 / 2.75)) {
|
||||
return c * (7.5625 * t * t) + b;
|
||||
@ -61,6 +111,15 @@ function easeOutBounce (t, b, c, d) {
|
||||
}
|
||||
}
|
||||
|
||||
function easeInBounce (t, b, c, d) {
|
||||
return c - easeOutBounce(d - t, 0, c, d) + b;
|
||||
}
|
||||
|
||||
function easeInOutBounce (t, b, c, d) {
|
||||
if (t < d / 2) return easeInBounce(t * 2, 0, c, d) * 0.5 + b;
|
||||
return easeOutBounce(t * 2 - d, 0, c, d) * 0.5 + c * 0.5 + b;
|
||||
}
|
||||
|
||||
function easeInSine (t, b, c, d) {
|
||||
return -c * Math.cos(t / d * (Math.PI / 2)) + c + b;
|
||||
}
|
||||
@ -136,6 +195,22 @@ function easeInOutElastic (t, b, c, d) {
|
||||
return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) / p) * 0.5 + c + b;
|
||||
}
|
||||
|
||||
function easeInBack (t, b, c, d, s) {
|
||||
if (s === undefined) s = 1.70158;
|
||||
return c * (t /= d) * t * ((s + 1) * t - s) + b;
|
||||
}
|
||||
|
||||
function easeOutBack (t, b, c, d, s) {
|
||||
if (s === undefined) s = 1.70158;
|
||||
return c * ((t = t / d - 1) * t * ((s + 1) * t + s) + 1) + b;
|
||||
}
|
||||
|
||||
function easeInOutBack (t, b, c, d, s) {
|
||||
if (s === undefined) s = 1.70158;
|
||||
if ((t /= d / 2) < 1) return c / 2 * (t * t * (((s *= (1.525)) + 1) * t - s)) + b;
|
||||
return c / 2 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2) + b;
|
||||
}
|
||||
|
||||
function easeInCirc (t, b, c, d) {
|
||||
return -c * (Math.sqrt(1 - (t /= d) * t) - 1) + b;
|
||||
}
|
||||
@ -215,12 +290,21 @@ function shiftColor (color, maxShiftAmt) {
|
||||
}
|
||||
|
||||
/* from: https://stackoverflow.com/a/17130415 */
|
||||
function getMousePos (canvas, evt, res) {
|
||||
var rect = canvas.getBoundingClientRect();
|
||||
return {
|
||||
x: Math.round((evt.clientX - rect.left) / (rect.right - rect.left) * canvas.width / res),
|
||||
y: Math.round((evt.clientY - rect.top) / (rect.bottom - rect.top) * canvas.height / res)
|
||||
};
|
||||
function getMousePos (evt, res) {
|
||||
var canvas = document.getElementsByTagName('canvas')[0];
|
||||
if (canvas !== undefined) {
|
||||
var rect = canvas.getBoundingClientRect();
|
||||
return {
|
||||
x: Math.round((evt.clientX - rect.left) / (rect.right - rect.left) * canvas.width / res),
|
||||
y: Math.round((evt.clientY - rect.top) / (rect.bottom - rect.top) * canvas.height / res)
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
function distancePos (point1, point2) {
|
||||
var a = point1.x - point2.x;
|
||||
var b = point1.y - point2.y;
|
||||
return Math.sqrt(a * a + b * b);
|
||||
}
|
||||
|
||||
function distance (point1, point2) {
|
||||
@ -237,7 +321,7 @@ function getRandomPoints (numPoints, maxX, maxY, tweeningFns) {
|
||||
y = randomInt(0, maxY - 1);
|
||||
cycleStart = randomInt(0, cycleDuration - 1);
|
||||
color = randomColor();
|
||||
easingFn = randomInt(0, tweeningFns.length - 1);
|
||||
easingFn = tweeningFns[Math.floor(Math.random() * tweeningFns.length)];
|
||||
points[i] = [x, y, cycleStart, color, easingFn];
|
||||
}
|
||||
return points;
|
||||
@ -280,7 +364,7 @@ function shiftPoints (points, maxShiftAmt, counter, tweeningFns) {
|
||||
}
|
||||
points.target[i][0] = candidateX;
|
||||
points.target[i][1] = candidateY;
|
||||
points.target[i][4] = randomInt(0, tweeningFns.length - 1);
|
||||
points.target[i][4] = tweeningFns[Math.floor(Math.random() * tweeningFns.length)];
|
||||
// FIXME: buggy, makes points jump around too fast
|
||||
// points.target[i][2] = shiftPointCounter(points.original[i][2], maxShiftAmt);
|
||||
}
|
||||
@ -292,15 +376,26 @@ function shiftPoints (points, maxShiftAmt, counter, tweeningFns) {
|
||||
return points;
|
||||
}
|
||||
|
||||
function pullPoints (points, clickPos, pullRate, maxDist, counter) {
|
||||
var xDist, yDist;
|
||||
function pullPoints (points, clickPos, pullRate, inertia, maxDist, counter, resetPoints, tweeningFn) {
|
||||
var xDist, yDist, xTraveled, yTraveled;
|
||||
for (var i = 0; i < points.target.length; i++) {
|
||||
xDist = clickPos.x - points.target[i][0];
|
||||
yDist = clickPos.y - points.target[i][1];
|
||||
xTraveled = clickPos.x - points.original[i][0];
|
||||
yTraveled = clickPos.y - points.original[i][1];
|
||||
if (Math.abs(xDist) <= maxDist && Math.abs(yDist) <= maxDist) {
|
||||
points.target[i][0] += Math.round(xDist * pullRate);
|
||||
points.target[i][1] += Math.round(yDist * pullRate);
|
||||
if (resetPoints) {
|
||||
// Good for changing directions, reset the points original positions to their current positions
|
||||
points.original[i][0] = points.tweened[i][0];
|
||||
points.original[i][1] = points.tweened[i][1];
|
||||
}
|
||||
points.target[i][0] += Math.round((xDist + (inertia * xTraveled)) * pullRate);
|
||||
points.target[i][1] += Math.round((yDist + (inertia * yTraveled)) * pullRate);
|
||||
points.target[i][3] = shiftColor(points.original[i][3], disconnectedColorShiftAmt * 3);
|
||||
if (tweeningFn !== null) {
|
||||
// Also twitch the tweening function for all affected points for additional effect
|
||||
points.target[i][4] = tweeningFn;
|
||||
}
|
||||
}
|
||||
// TODO: define these magic numbers somewhere
|
||||
// If this point's cycle is near it's end, bump it up some ticks to make the animation smoother
|
||||
@ -310,9 +405,11 @@ function pullPoints (points, clickPos, pullRate, maxDist, counter) {
|
||||
}
|
||||
}
|
||||
|
||||
function redistributeCycles (points) {
|
||||
function redistributeCycles (points, oldCycleDuration, cycleDuration) {
|
||||
var progress;
|
||||
for (var i = 0; i < points.original.length; i++) {
|
||||
points.target[i][2] = randomInt(0, cycleDuration - 1);
|
||||
progress = points.target[i][2] / oldCycleDuration;
|
||||
points.target[i][2] = Math.round(progress * cycleDuration);
|
||||
}
|
||||
return points;
|
||||
}
|
||||
@ -329,7 +426,7 @@ function drawPolygon (polygon, points, counter, tweeningFns) {
|
||||
var i, j, easingFn, avgColor, shadedColor, connectionCount, dist, connectivity;
|
||||
// calculate vectors
|
||||
for (i = 0; i < points.original.length; i++) {
|
||||
easingFn = tweeningFns[points.target[i][4]];
|
||||
easingFn = allTweeningFns[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);
|
||||
}
|
||||
@ -377,10 +474,22 @@ function loop () {
|
||||
|
||||
if (click !== null) {
|
||||
if (clickEnd) {
|
||||
clickPullRate *= clickEndRebount;
|
||||
clickPullRate = clickPullRateEnd;
|
||||
clickInertia = clickInertiaEnd;
|
||||
clickTweeningFn = clickTweeningFnEnd;
|
||||
if (debug) {
|
||||
polygon.lineStyle(1, 0xDC143C, 1);
|
||||
polygon.drawCircle(click.x, click.y, clickMaxDist);
|
||||
}
|
||||
} else {
|
||||
if (debug) {
|
||||
polygon.lineStyle(1, 0x483D8B, 1);
|
||||
polygon.drawCircle(click.x, click.y, clickMaxDist);
|
||||
}
|
||||
}
|
||||
|
||||
// a pointer event is occuring and needs to affect the points
|
||||
pullPoints(polygonPoints, click, clickPullRate, clickMaxDist, counter);
|
||||
pullPoints(polygonPoints, click, clickPullRate, clickInertia, clickMaxDist, counter, clickEnd, clickTweeningFn);
|
||||
|
||||
// slightly increase effect amount for next loop if click is still occuring
|
||||
if (clickMaxDist <= clickMaxDistMax) {
|
||||
@ -395,10 +504,27 @@ function loop () {
|
||||
clickEnd = false;
|
||||
clickMaxDist = clickMaxDistStart;
|
||||
clickPullRate = clickPullRateStart;
|
||||
clickInertia = clickInertiaStart;
|
||||
clickTweeningFn = clickTweeningFnStart;
|
||||
}
|
||||
} else if (hover !== null) {
|
||||
if (lastHover !== null) {
|
||||
hoverMaxDist += Math.min(Math.round(distancePos(hover, lastHover)), hoverMaxDistMax);
|
||||
}
|
||||
if (debug) {
|
||||
polygon.lineStyle(1, 0xBDB76B, 1);
|
||||
polygon.drawCircle(hover.x, hover.y, hoverMaxDist);
|
||||
}
|
||||
|
||||
pullPoints(polygonPoints, hover, hoverPushRate, hoverInertia, hoverMaxDist, counter, false, hoverTweeningFn);
|
||||
|
||||
hoverMaxDist = hoverMaxDistStart;
|
||||
lastHover = hover;
|
||||
}
|
||||
|
||||
// polygon.beginFill(0x00FF00);
|
||||
drawPolygon(polygon, polygonPoints, counter, tweeningFns);
|
||||
// polygon.endFill();
|
||||
|
||||
counter += 1;
|
||||
counter = counter % cycleDuration;
|
||||
@ -418,12 +544,13 @@ function loop () {
|
||||
|
||||
// If user scrolled, modify cycleDuration by amount scrolled
|
||||
if (scrollDelta !== 0) {
|
||||
cycleDuration = cycleDuration + scrollDelta;
|
||||
var oldCycleDuration = cycleDuration;
|
||||
cycleDuration = Math.round(cycleDuration + scrollDelta);
|
||||
if (cycleDuration < 1) {
|
||||
cycleDuration = 1;
|
||||
}
|
||||
scrollDelta = 0;
|
||||
polygonPoints = redistributeCycles(polygonPoints);
|
||||
polygonPoints = redistributeCycles(polygonPoints, oldCycleDuration, cycleDuration);
|
||||
}
|
||||
|
||||
// Tell the `renderer` to `render` the `stage`
|
||||
@ -456,28 +583,7 @@ function loopStart () {
|
||||
// colorShiftAmt = 80;
|
||||
disconnectedColorShiftAmt = 10;
|
||||
polygon = new window.PIXI.Graphics();
|
||||
tweeningFns = [
|
||||
linearTweening,
|
||||
easeInSine,
|
||||
easeOutSine,
|
||||
easeInOutSine,
|
||||
easeInQuad,
|
||||
easeOutQuad,
|
||||
easeInOutQuad,
|
||||
easeInCubic,
|
||||
easeOutCubic,
|
||||
easeInOutCubic
|
||||
// easeOutBounce,
|
||||
// easeInElastic,
|
||||
// easeOutElastic,
|
||||
// easeInOutElastic,
|
||||
// easeInExpo,
|
||||
// easeOutExpo,
|
||||
// easeInOutExpo,
|
||||
// easeInCirc,
|
||||
// easeOutCirc,
|
||||
// easeInOutCirc
|
||||
];
|
||||
tweeningFns = tweeningSets.meandering;
|
||||
startPoints = getRandomPoints(Math.round(totalScreenPixels / 6), screenWidth, screenHeight, tweeningFns);
|
||||
polygonPoints = {
|
||||
original: startPoints,
|
||||
@ -501,43 +607,22 @@ function loopStart () {
|
||||
window.requestAnimationFrame(loop);
|
||||
}
|
||||
|
||||
function updateClickPos (event) {
|
||||
var canvas = document.getElementsByTagName('canvas')[0];
|
||||
click = getMousePos(canvas, event, resolution);
|
||||
}
|
||||
|
||||
window.onload = loopStart;
|
||||
|
||||
/* MOUSE AND TOUCH EVENTS */
|
||||
|
||||
// FIXME: buggy :(
|
||||
window.addEventListener('mousewheel', function (e) {
|
||||
// scrollDelta = scrollDelta + ((e.deltaY / 100) * 3);
|
||||
// FIXME: buggy :(
|
||||
});
|
||||
|
||||
window.addEventListener('mousedown', function (e) {
|
||||
updateClickPos(e);
|
||||
});
|
||||
|
||||
window.addEventListener('mousemove', function (e) {
|
||||
if (click !== null) {
|
||||
updateClickPos(e);
|
||||
}
|
||||
});
|
||||
|
||||
window.addEventListener('mouseup', function (e) {
|
||||
clickEnd = true;
|
||||
});
|
||||
|
||||
window.addEventListener('mouseleave', function (e) {
|
||||
clickEnd = true;
|
||||
scrollDelta = scrollDelta + ((e.deltaY / 100) * 3);
|
||||
});
|
||||
|
||||
window.addEventListener('touchstart', function (e) {
|
||||
updateClickPos(e.changedTouches[0]);
|
||||
click = getMousePos(e.changedTouches[0], resolution);
|
||||
});
|
||||
|
||||
window.addEventListener('touchmove', function (e) {
|
||||
if (click !== null) {
|
||||
updateClickPos(e.changedTouches[0]);
|
||||
click = getMousePos(e.changedTouches[0], resolution);
|
||||
}
|
||||
});
|
||||
|
||||
@ -549,6 +634,32 @@ window.addEventListener('touchcancel', function (e) {
|
||||
clickEnd = true;
|
||||
});
|
||||
|
||||
window.addEventListener('mousedown', function (e) {
|
||||
click = getMousePos(e, resolution);
|
||||
});
|
||||
|
||||
window.addEventListener('mousemove', function (e) {
|
||||
var pos = getMousePos(e, resolution);
|
||||
if (click !== null) {
|
||||
click = pos;
|
||||
}
|
||||
hover = pos;
|
||||
});
|
||||
|
||||
window.addEventListener('mouseup', function (e) {
|
||||
clickEnd = true;
|
||||
hover = null;
|
||||
lastHover = null;
|
||||
});
|
||||
|
||||
window.addEventListener('mouseleave', function (e) {
|
||||
clickEnd = true;
|
||||
hover = null;
|
||||
lastHover = null;
|
||||
});
|
||||
|
||||
/* KEYBOARD EVENTS */
|
||||
|
||||
window.addEventListener('keydown', function (e) {
|
||||
if (e.keyCode === 37) { // left
|
||||
pointShiftBiasX = -1;
|
||||
@ -558,6 +669,18 @@ window.addEventListener('keydown', function (e) {
|
||||
pointShiftBiasX = 1;
|
||||
} else if (e.keyCode === 40) { // down
|
||||
pointShiftBiasY = 1;
|
||||
} else if (e.keyCode === 49) { // 1
|
||||
tweeningFns = tweeningSets.linear;
|
||||
} else if (e.keyCode === 50) { // 2
|
||||
tweeningFns = tweeningSets.meandering;
|
||||
} else if (e.keyCode === 51) { // 3
|
||||
tweeningFns = tweeningSets.snappy;
|
||||
} else if (e.keyCode === 52) { // 4
|
||||
tweeningFns = tweeningSets.bouncy;
|
||||
} else if (e.keyCode === 53) { // 5
|
||||
tweeningFns = tweeningSets.elastic;
|
||||
} else if (e.keyCode === 54) { // 6
|
||||
tweeningFns = tweeningSets.back;
|
||||
} else if (e.keyCode === 70) { // f
|
||||
// toggle fpsCounter
|
||||
if (fpsEnabled) {
|
||||
|
||||
7
notes.md
7
notes.md
@ -14,3 +14,10 @@ Click events:
|
||||
* Continue with drawPolygon
|
||||
|
||||
Make a better points data structure with x and y keys.
|
||||
|
||||
For debugging, display a line of the intended path for each point.
|
||||
* Run the whole tween function in one tick, drawing a single pixel along
|
||||
|
||||
If lines make a connected polygon, shade the inside of it with the average color
|
||||
of all vertices composing the polygon. The more distant the points (and the
|
||||
larger the polygon) the more dark the color is shaded.
|
||||
|
||||
Loading…
Reference in New Issue
Block a user