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eyes-multiple.html
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eyes-multiple.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Boo!</title>
<style>
body {
padding: 0;
margin: 0;
background-color: black;
overflow: hidden;
}
</style>
</head>
<body>
<canvas id="c"></canvas>
<script>
var c = document.getElementById('c'),
ctx = c.getContext('2d'),
cw = c.width = window.innerWidth,
ch = c.height = window.innerHeight,
pi2 = Math.PI * 2,
eyes = [],
dirty = true,
rand = function (min, max) {
return Math.floor((Math.random() * (max - min + 1)) + min);
};
ctx.lineJoin = 'round';
ctx.lineWidth = 8;
var Ball = function (opt) {
this.x = opt.x;
this.y = opt.y;
this.vx = 10;
this.vy = 10;
this.radius = opt.radius;
this.color = opt.color;
};
Ball.prototype.update = function () {
this.x += this.vx;
this.y += this.vy;
if (this.x > cw - this.radius || this.x < this.radius) {
this.vx = -this.vx;
}
if (this.y > ch - this.radius || this.y < this.radius) {
this.vy = -this.vy;
}
};
Ball.prototype.render = function () {
ctx.beginPath();
ctx.arc(this.x, this.y, this.radius, 0, pi2, false);
ctx.fillStyle = this.color;
ctx.fill();
};
var ball = new Ball({
x: cw / 2,
y: ch / 2,
radius: 10,
color: '#fff'
});
var Eye = function (opt) {
this.xOrigin = opt.x;
this.yOrigin = opt.y;
this.x = opt.x;
this.y = opt.y;
this.scleraRadius = opt.scleraRadius;
this.irisRadius = opt.irisRadius;
this.pupilRadius = opt.pupilRadius;
this.scleraColor = opt.scleraColor;
this.irisColor = opt.irisColor;
this.pupilColor = opt.pupilColor;
this.scale = opt.scale;
this.spacing = 80;
this.open = 0;
this.blinking = 0;
this.angry = 0;
this.dirty = true;
var dx = ball.x - this.xOrigin,
dy = ball.y - this.yOrigin,
angle = Math.atan2(dy, dx),
vx = Math.cos(angle) * 40,
vy = Math.sin(angle) * 20;
this.x = this.xOrigin + (vx / 2);
this.y = this.yOrigin + (vy / 2);
};
Eye.prototype.update = function () {
var posLeft = this.xOrigin - (this.spacing * this.scale);
var posRight = this.xOrigin + (this.spacing * this.scale);
var dx = ball.x - this.xOrigin,
dy = ball.y - this.yOrigin,
angle = Math.atan2(dy, dx),
vx = Math.cos(angle) * 40,
vy = Math.sin(angle) * 20;
this.x = this.xOrigin + (vx / 2);
this.y = this.yOrigin + (vy / 2);
};
// DRAWS THE EYE
Eye.prototype.render = function () {
if (this.blinking < 0) {
this.open += 0.2;
this.dirty = true;
if (this.open >= 1.25) {
this.blinking = 0;
this.open = 1.25;
this.dirty = false;
}
} else if (this.blinking > 0) {
this.open -= 0.1;
this.dirty = true;
if (this.open <= -1.0) {
this.blinking = -1;
this.open = -1.0;
}
} else {
if (this.open) {
this.dirty = false;
}
}
ctx.fillStyle = this.scleraColor; // this.angry ? '#f40' : '#eee';
var posLeft = this.xOrigin - (this.spacing * this.scale);
var posRight = this.xOrigin + (this.spacing * this.scale);
var scelara = this.scleraRadius * this.scale;
var focus = 8 * this.scale;
var angered = this.angry * 30 * this.scale;
var angst = this.angry * 5 * this.scale;
// Sclera Fill
ctx.beginPath();
ctx.moveTo(posLeft - scelara, this.yOrigin - angered);
ctx.quadraticCurveTo(posLeft + angered, this.yOrigin - scelara * this.open, posLeft + scelara, this.yOrigin);
ctx.quadraticCurveTo(posLeft - angered, this.yOrigin + scelara * this.open, posLeft - scelara, this.yOrigin - angered);
ctx.closePath();
ctx.fill();
ctx.save();
ctx.clip();
// Iris
ctx.beginPath();
ctx.arc(posLeft + focus + angst, this.y, this.irisRadius * this.scale, 0, pi2, false);
ctx.fillStyle = this.irisColor;
ctx.fill();
// Pupil
ctx.beginPath();
ctx.fillStyle = this.pupilColor;
ctx.arc(posLeft + focus + angst, this.y, this.pupilRadius * this.scale, 0, pi2, false);
ctx.fill();
ctx.restore();
ctx.beginPath();
ctx.moveTo(posRight - scelara, this.yOrigin);
ctx.quadraticCurveTo(posRight - angered, this.yOrigin - scelara * this.open, posRight + scelara, this.yOrigin - angered);
ctx.quadraticCurveTo(posRight + angered, this.yOrigin + scelara * this.open, posRight - scelara, this.yOrigin);
ctx.closePath();
ctx.fill();
ctx.save();
ctx.clip();
// Iris
ctx.beginPath();
ctx.arc(posRight - focus - angst, this.y, this.irisRadius * this.scale, 0, pi2, false);
ctx.fillStyle = this.irisColor;
ctx.fill();
// Pupil
ctx.beginPath();
ctx.fillStyle = this.pupilColor;
ctx.arc(posRight - focus - angst, this.y, this.pupilRadius * this.scale, 0, pi2, false);
ctx.fill();
ctx.restore();
// console.log('rend');
}
var updateEyes = function () {
var i = eyes.length;
while (i--) {
eyes[i].update();
}
};
var renderEyes = function () {
var i = eyes.length;
while (i--) {
eyes[i].render();
}
};
var clear = function () {
ctx.clearRect(0, 0, cw, ch);
};
var run = function () {
window.requestAnimFrame(run, c);
var rendering = false;
eyes.forEach(function(eye) {
if (eye.dirty) {
rendering = true;
}
});
if (rendering) {
clear();
// ball.update();
// ball.render();
// updateEyes();
renderEyes();
}
};
window.requestAnimFrame = function () {
return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame ||
function (a) { window.setTimeout(a, 1E3 / 30) };
}();
function createEyes(count) {
var posX = [];
var posY = [];
var xint = Math.floor((cw - 230) / count);
var yint = Math.floor((ch - 60) / count);
var p = count;
while (p--) {
var weight = (p - (count / 2) + 0.5) * (count * count);
posX.push(Math.floor(((p * xint) + 160) + (cw / weight)));
posY.push(Math.floor(((p * yint) + 50) + (ch / weight)));
// console.log(p, weight, cw / weight, ch / weight);
}
var r = count;
while (r--) {
var valX = posX[r];
var valY = posY[r];
var xr = r - rand(0, count - 1);
var yr = r - rand(0, count - 1);
xr = (xr >= 0) ? xr : xr + count;
yr = (yr >= 0) ? yr : yr + count;
posX[r] = posX[xr];
posY[r] = posY[yr];
posX[xr] = valX;
posY[yr] = valY;
}
eyes = [];
var i = count;
while (i--) {
eyes.push(new Eye({
x: posX[i], // (i * xint) + 150, // rand(100, cw - 100), // pos[i].x + cw / 2, // rand(cw - 100, 100), //((cw - 150) / count) * (i + 1),
y: posY[i], // (i * yint) + 60, // rand(100, ch - 100), // pos[i].y + cw / 2, // rand(100, ch - 100),
scleraRadius: 60,
irisRadius: 45, // rand(40, 60),
pupilRadius: 20, // rand(10, 30),
scleraColor: 'rgba(255,255,255,0.5)',
irisColor: 'rgba(255,255,0,0.95)', // 'hsla(' + rand(0, 360) + ', 80%, 60%, 1)',
pupilColor: 'rgba(0,24,0,1)', // '#111',
scale: rand(50, 100) / 100
}));
}
var blinkInt = setInterval(function() {
var eye = eyes[rand(0, eyes.length - 1)];
if (eye.blinking == 0) {
eye.blinking = 1;
eye.dirty = true;
}
}, 250);
setTimeout(function(){
clearInterval(blinkInt);
eyes.forEach(function(eye) {
if (eye.open == 0) {
eye.open = 1;
eye.dirty = true;
}
});
}, 4000);
setTimeout(function(){
eyes.forEach(function(eye) {
eye.open = 0.8;
eye.angry = 1;
eye.irisRadius = 40;
eye.scleraColor = '#f20';
eye.pupilRadius = 20;
eye.dirty = true;
});
}, 6000);
}
createEyes(6);
setInterval(function() {
clear();
setTimeout(function(){
createEyes(rand(4, 8));
}, 8000);
}, 12000);
run();
</script>
</body>
</html>