2024-06-07 13:03:58 +00:00
|
|
|
<html>
|
|
|
|
|
<head>
|
|
|
|
|
<meta charset="utf-8">
|
|
|
|
|
<title>www.husonghe.com</title>
|
|
|
|
|
<style>
|
|
|
|
|
html {
|
|
|
|
|
height: 100%;
|
|
|
|
|
background-image: -webkit-radial-gradient(ellipse farthest-corner at center center, #1b44e4 0%, #020f3a 100%);
|
|
|
|
|
background-image: radial-gradient(ellipse farthest-corner at center center, #1b44e4 0%, #020f3a 100%);
|
|
|
|
|
cursor: move;
|
|
|
|
|
}
|
2024-06-07 12:15:48 +00:00
|
|
|
|
2024-06-07 13:03:58 +00:00
|
|
|
body {
|
|
|
|
|
width: 100%;
|
|
|
|
|
margin: 0;
|
|
|
|
|
overflow: hidden;
|
|
|
|
|
}
|
|
|
|
|
</style>
|
2024-06-07 12:15:48 +00:00
|
|
|
</head>
|
|
|
|
|
|
|
|
|
|
<body>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<canvas id="canv" width="1920" height="572"></canvas>
|
|
|
|
|
<script>
|
2024-06-07 13:03:58 +00:00
|
|
|
var num = 200;
|
|
|
|
|
var w = window.innerWidth;
|
|
|
|
|
var h = window.innerHeight;
|
|
|
|
|
var max = 100;
|
|
|
|
|
var _x = 0;
|
|
|
|
|
var _y = 0;
|
|
|
|
|
var _z = 150;
|
|
|
|
|
var dtr = function (d) {
|
|
|
|
|
return d * Math.PI / 180;
|
|
|
|
|
};
|
2024-06-07 12:15:48 +00:00
|
|
|
|
2024-06-07 13:03:58 +00:00
|
|
|
var rnd = function () {
|
|
|
|
|
return Math.sin(Math.floor(Math.random() * 360) * Math.PI / 180);
|
|
|
|
|
};
|
|
|
|
|
var dist = function (p1, p2, p3) {
|
|
|
|
|
return Math.sqrt(Math.pow(p2.x - p1.x, 2) + Math.pow(p2.y - p1.y, 2) + Math.pow(p2.z - p1.z, 2));
|
2024-06-07 12:15:48 +00:00
|
|
|
};
|
2024-06-07 13:03:58 +00:00
|
|
|
|
|
|
|
|
var cam = {
|
|
|
|
|
obj: {
|
|
|
|
|
x: _x,
|
|
|
|
|
y: _y,
|
|
|
|
|
z: _z
|
|
|
|
|
},
|
|
|
|
|
dest: {
|
|
|
|
|
x: 0,
|
|
|
|
|
y: 0,
|
|
|
|
|
z: 1
|
|
|
|
|
},
|
|
|
|
|
dist: {
|
|
|
|
|
x: 0,
|
|
|
|
|
y: 0,
|
|
|
|
|
z: 200
|
|
|
|
|
},
|
|
|
|
|
ang: {
|
|
|
|
|
cplane: 0,
|
|
|
|
|
splane: 0,
|
|
|
|
|
ctheta: 0,
|
|
|
|
|
stheta: 0
|
|
|
|
|
},
|
|
|
|
|
zoom: 1,
|
|
|
|
|
disp: {
|
|
|
|
|
x: w / 2,
|
|
|
|
|
y: h / 2,
|
|
|
|
|
z: 0
|
|
|
|
|
},
|
|
|
|
|
upd: function () {
|
|
|
|
|
cam.dist.x = cam.dest.x - cam.obj.x;
|
|
|
|
|
cam.dist.y = cam.dest.y - cam.obj.y;
|
|
|
|
|
cam.dist.z = cam.dest.z - cam.obj.z;
|
|
|
|
|
cam.ang.cplane = -cam.dist.z / Math.sqrt(cam.dist.x * cam.dist.x + cam.dist.z * cam.dist.z);
|
|
|
|
|
cam.ang.splane = cam.dist.x / Math.sqrt(cam.dist.x * cam.dist.x + cam.dist.z * cam.dist.z);
|
|
|
|
|
cam.ang.ctheta = Math.sqrt(cam.dist.x * cam.dist.x + cam.dist.z * cam.dist.z) / Math.sqrt(cam.dist.x * cam.dist.x + cam.dist.y * cam.dist.y + cam.dist.z * cam.dist.z);
|
|
|
|
|
cam.ang.stheta = -cam.dist.y / Math.sqrt(cam.dist.x * cam.dist.x + cam.dist.y * cam.dist.y + cam.dist.z * cam.dist.z);
|
|
|
|
|
}
|
2024-06-07 12:15:48 +00:00
|
|
|
};
|
|
|
|
|
|
2024-06-07 13:03:58 +00:00
|
|
|
var trans = {
|
|
|
|
|
parts: {
|
|
|
|
|
sz: function (p, sz) {
|
|
|
|
|
return {
|
|
|
|
|
x: p.x * sz.x,
|
|
|
|
|
y: p.y * sz.y,
|
|
|
|
|
z: p.z * sz.z
|
|
|
|
|
};
|
|
|
|
|
},
|
|
|
|
|
rot: {
|
|
|
|
|
x: function (p, rot) {
|
|
|
|
|
return {
|
|
|
|
|
x: p.x,
|
|
|
|
|
y: p.y * Math.cos(dtr(rot.x)) - p.z * Math.sin(dtr(rot.x)),
|
|
|
|
|
z: p.y * Math.sin(dtr(rot.x)) + p.z * Math.cos(dtr(rot.x))
|
|
|
|
|
};
|
|
|
|
|
},
|
|
|
|
|
y: function (p, rot) {
|
|
|
|
|
return {
|
|
|
|
|
x: p.x * Math.cos(dtr(rot.y)) + p.z * Math.sin(dtr(rot.y)),
|
|
|
|
|
y: p.y,
|
|
|
|
|
z: -p.x * Math.sin(dtr(rot.y)) + p.z * Math.cos(dtr(rot.y))
|
|
|
|
|
};
|
|
|
|
|
},
|
|
|
|
|
z: function (p, rot) {
|
|
|
|
|
return {
|
|
|
|
|
x: p.x * Math.cos(dtr(rot.z)) - p.y * Math.sin(dtr(rot.z)),
|
|
|
|
|
y: p.x * Math.sin(dtr(rot.z)) + p.y * Math.cos(dtr(rot.z)),
|
|
|
|
|
z: p.z
|
|
|
|
|
};
|
|
|
|
|
}
|
|
|
|
|
},
|
|
|
|
|
pos: function (p, pos) {
|
|
|
|
|
return {
|
|
|
|
|
x: p.x + pos.x,
|
|
|
|
|
y: p.y + pos.y,
|
|
|
|
|
z: p.z + pos.z
|
|
|
|
|
};
|
|
|
|
|
}
|
|
|
|
|
},
|
|
|
|
|
pov: {
|
|
|
|
|
plane: function (p) {
|
|
|
|
|
return {
|
|
|
|
|
x: p.x * cam.ang.cplane + p.z * cam.ang.splane,
|
|
|
|
|
y: p.y,
|
|
|
|
|
z: p.x * -cam.ang.splane + p.z * cam.ang.cplane
|
|
|
|
|
};
|
|
|
|
|
},
|
|
|
|
|
theta: function (p) {
|
|
|
|
|
return {
|
|
|
|
|
x: p.x,
|
|
|
|
|
y: p.y * cam.ang.ctheta - p.z * cam.ang.stheta,
|
|
|
|
|
z: p.y * cam.ang.stheta + p.z * cam.ang.ctheta
|
|
|
|
|
};
|
|
|
|
|
},
|
|
|
|
|
set: function (p) {
|
|
|
|
|
return {
|
|
|
|
|
x: p.x - cam.obj.x,
|
|
|
|
|
y: p.y - cam.obj.y,
|
|
|
|
|
z: p.z - cam.obj.z
|
|
|
|
|
};
|
|
|
|
|
}
|
|
|
|
|
},
|
|
|
|
|
persp: function (p) {
|
|
|
|
|
return {
|
|
|
|
|
x: p.x * cam.dist.z / p.z * cam.zoom,
|
|
|
|
|
y: p.y * cam.dist.z / p.z * cam.zoom,
|
|
|
|
|
z: p.z * cam.zoom,
|
|
|
|
|
p: cam.dist.z / p.z
|
|
|
|
|
};
|
|
|
|
|
},
|
|
|
|
|
disp: function (p, disp) {
|
|
|
|
|
return {
|
|
|
|
|
x: p.x + disp.x,
|
|
|
|
|
y: -p.y + disp.y,
|
|
|
|
|
z: p.z + disp.z,
|
|
|
|
|
p: p.p
|
|
|
|
|
};
|
|
|
|
|
},
|
|
|
|
|
steps: function (_obj_, sz, rot, pos, disp) {
|
|
|
|
|
var _args = trans.parts.sz(_obj_, sz);
|
|
|
|
|
_args = trans.parts.rot.x(_args, rot);
|
|
|
|
|
_args = trans.parts.rot.y(_args, rot);
|
|
|
|
|
_args = trans.parts.rot.z(_args, rot);
|
|
|
|
|
_args = trans.parts.pos(_args, pos);
|
|
|
|
|
_args = trans.pov.plane(_args);
|
|
|
|
|
_args = trans.pov.theta(_args);
|
|
|
|
|
_args = trans.pov.set(_args);
|
|
|
|
|
_args = trans.persp(_args);
|
|
|
|
|
_args = trans.disp(_args, disp);
|
|
|
|
|
return _args;
|
|
|
|
|
}
|
|
|
|
|
};
|
2024-06-07 12:15:48 +00:00
|
|
|
|
2024-06-07 13:03:58 +00:00
|
|
|
(function () {
|
|
|
|
|
"use strict";
|
|
|
|
|
var threeD = function (param) {
|
|
|
|
|
this.transIn = {};
|
|
|
|
|
this.transOut = {};
|
|
|
|
|
this.transIn.vtx = (param.vtx);
|
|
|
|
|
this.transIn.sz = (param.sz);
|
|
|
|
|
this.transIn.rot = (param.rot);
|
|
|
|
|
this.transIn.pos = (param.pos);
|
|
|
|
|
};
|
2024-06-07 12:15:48 +00:00
|
|
|
|
2024-06-07 13:03:58 +00:00
|
|
|
threeD.prototype.vupd = function () {
|
|
|
|
|
this.transOut = trans.steps(
|
|
|
|
|
this.transIn.vtx,
|
|
|
|
|
this.transIn.sz,
|
|
|
|
|
this.transIn.rot,
|
|
|
|
|
this.transIn.pos,
|
|
|
|
|
cam.disp
|
|
|
|
|
);
|
|
|
|
|
};
|
2024-06-07 12:15:48 +00:00
|
|
|
|
2024-06-07 13:03:58 +00:00
|
|
|
var Build = function () {
|
|
|
|
|
this.vel = 0.04;
|
|
|
|
|
this.lim = 360;
|
|
|
|
|
this.diff = 200;
|
|
|
|
|
this.initPos = 100;
|
|
|
|
|
this.toX = _x;
|
|
|
|
|
this.toY = _y;
|
|
|
|
|
this.go();
|
|
|
|
|
};
|
2024-06-07 12:15:48 +00:00
|
|
|
|
2024-06-07 13:03:58 +00:00
|
|
|
Build.prototype.go = function () {
|
|
|
|
|
this.canvas = document.getElementById("canv");
|
|
|
|
|
this.canvas.width = window.innerWidth;
|
|
|
|
|
this.canvas.height = window.innerHeight;
|
|
|
|
|
this.$ = canv.getContext("2d");
|
|
|
|
|
this.$.globalCompositeOperation = 'source-over';
|
|
|
|
|
this.varr = [];
|
|
|
|
|
this.dist = [];
|
|
|
|
|
this.calc = [];
|
2024-06-07 12:15:48 +00:00
|
|
|
|
2024-06-07 13:03:58 +00:00
|
|
|
for (var i = 0, len = num; i < len; i++) {
|
|
|
|
|
this.add();
|
|
|
|
|
}
|
2024-06-07 12:15:48 +00:00
|
|
|
|
2024-06-07 13:03:58 +00:00
|
|
|
this.rotObj = {
|
|
|
|
|
x: 0,
|
|
|
|
|
y: 0,
|
|
|
|
|
z: 0
|
|
|
|
|
};
|
|
|
|
|
this.objSz = {
|
|
|
|
|
x: w / 5,
|
|
|
|
|
y: h / 5,
|
|
|
|
|
z: w / 5
|
|
|
|
|
};
|
|
|
|
|
};
|
2024-06-07 12:15:48 +00:00
|
|
|
|
2024-06-07 13:03:58 +00:00
|
|
|
Build.prototype.add = function () {
|
|
|
|
|
this.varr.push(new threeD({
|
|
|
|
|
vtx: {
|
|
|
|
|
x: rnd(),
|
|
|
|
|
y: rnd(),
|
|
|
|
|
z: rnd()
|
|
|
|
|
},
|
|
|
|
|
sz: {
|
|
|
|
|
x: 0,
|
|
|
|
|
y: 0,
|
|
|
|
|
z: 0
|
|
|
|
|
},
|
|
|
|
|
rot: {
|
|
|
|
|
x: 20,
|
|
|
|
|
y: -20,
|
|
|
|
|
z: 0
|
|
|
|
|
},
|
|
|
|
|
pos: {
|
|
|
|
|
x: this.diff * Math.sin(360 * Math.random() * Math.PI / 180),
|
|
|
|
|
y: this.diff * Math.sin(360 * Math.random() * Math.PI / 180),
|
|
|
|
|
z: this.diff * Math.sin(360 * Math.random() * Math.PI / 180)
|
|
|
|
|
}
|
|
|
|
|
}));
|
|
|
|
|
this.calc.push({
|
|
|
|
|
x: 360 * Math.random(),
|
|
|
|
|
y: 360 * Math.random(),
|
|
|
|
|
z: 360 * Math.random()
|
|
|
|
|
});
|
|
|
|
|
};
|
2024-06-07 12:15:48 +00:00
|
|
|
|
2024-06-07 13:03:58 +00:00
|
|
|
Build.prototype.upd = function () {
|
|
|
|
|
cam.obj.x += (this.toX - cam.obj.x) * 0.05;
|
|
|
|
|
cam.obj.y += (this.toY - cam.obj.y) * 0.05;
|
|
|
|
|
};
|
2024-06-07 12:15:48 +00:00
|
|
|
|
2024-06-07 13:03:58 +00:00
|
|
|
Build.prototype.draw = function () {
|
|
|
|
|
this.$.clearRect(0, 0, this.canvas.width, this.canvas.height);
|
|
|
|
|
cam.upd();
|
|
|
|
|
this.rotObj.x += 0.1;
|
|
|
|
|
this.rotObj.y += 0.1;
|
|
|
|
|
this.rotObj.z += 0.1;
|
2024-06-07 12:15:48 +00:00
|
|
|
|
2024-06-07 13:03:58 +00:00
|
|
|
for (var i = 0; i < this.varr.length; i++) {
|
|
|
|
|
for (var val in this.calc[i]) {
|
|
|
|
|
if (this.calc[i].hasOwnProperty(val)) {
|
|
|
|
|
this.calc[i][val] += this.vel;
|
|
|
|
|
if (this.calc[i][val] > this.lim) this.calc[i][val] = 0;
|
|
|
|
|
}
|
|
|
|
|
}
|
2024-06-07 12:15:48 +00:00
|
|
|
|
2024-06-07 13:03:58 +00:00
|
|
|
this.varr[i].transIn.pos = {
|
|
|
|
|
x: this.diff * Math.cos(this.calc[i].x * Math.PI / 180),
|
|
|
|
|
y: this.diff * Math.sin(this.calc[i].y * Math.PI / 180),
|
|
|
|
|
z: this.diff * Math.sin(this.calc[i].z * Math.PI / 180)
|
|
|
|
|
};
|
|
|
|
|
this.varr[i].transIn.rot = this.rotObj;
|
|
|
|
|
this.varr[i].transIn.sz = this.objSz;
|
|
|
|
|
this.varr[i].vupd();
|
|
|
|
|
if (this.varr[i].transOut.p < 0) continue;
|
|
|
|
|
var g = this.$.createRadialGradient(this.varr[i].transOut.x, this.varr[i].transOut.y, this.varr[i].transOut.p, this.varr[i].transOut.x, this.varr[i].transOut.y, this.varr[i].transOut.p * 2);
|
|
|
|
|
this.$.globalCompositeOperation = 'lighter';
|
|
|
|
|
g.addColorStop(0, 'hsla(255, 255%, 255%, 1)');
|
|
|
|
|
g.addColorStop(.5, 'hsla(' + (i + 2) + ',85%, 40%,1)');
|
|
|
|
|
g.addColorStop(1, 'hsla(' + (i) + ',85%, 40%,.5)');
|
|
|
|
|
this.$.fillStyle = g;
|
|
|
|
|
this.$.beginPath();
|
|
|
|
|
this.$.arc(this.varr[i].transOut.x, this.varr[i].transOut.y, this.varr[i].transOut.p * 2, 0, Math.PI * 2, false);
|
|
|
|
|
this.$.fill();
|
|
|
|
|
this.$.closePath();
|
|
|
|
|
}
|
2024-06-07 12:15:48 +00:00
|
|
|
};
|
2024-06-07 13:03:58 +00:00
|
|
|
Build.prototype.anim = function () {
|
|
|
|
|
window.requestAnimationFrame = (function () {
|
|
|
|
|
return window.requestAnimationFrame ||
|
|
|
|
|
function (callback, element) {
|
|
|
|
|
window.setTimeout(callback, 1000 / 60);
|
|
|
|
|
};
|
|
|
|
|
})();
|
|
|
|
|
var anim = function () {
|
|
|
|
|
this.upd();
|
|
|
|
|
this.draw();
|
|
|
|
|
window.requestAnimationFrame(anim);
|
2024-06-07 12:15:48 +00:00
|
|
|
|
2024-06-07 13:03:58 +00:00
|
|
|
}.bind(this);
|
|
|
|
|
window.requestAnimationFrame(anim);
|
|
|
|
|
};
|
2024-06-07 12:15:48 +00:00
|
|
|
|
2024-06-07 13:03:58 +00:00
|
|
|
Build.prototype.run = function () {
|
|
|
|
|
this.anim();
|
2024-06-07 12:15:48 +00:00
|
|
|
|
2024-06-07 13:03:58 +00:00
|
|
|
window.addEventListener('mousemove', function (e) {
|
|
|
|
|
this.toX = (e.clientX - this.canvas.width / 2) * -0.8;
|
|
|
|
|
this.toY = (e.clientY - this.canvas.height / 2) * 0.8;
|
|
|
|
|
}.bind(this));
|
|
|
|
|
window.addEventListener('touchmove', function (e) {
|
|
|
|
|
e.preventDefault();
|
|
|
|
|
this.toX = (e.touches[0].clientX - this.canvas.width / 2) * -0.8;
|
|
|
|
|
this.toY = (e.touches[0].clientY - this.canvas.height / 2) * 0.8;
|
|
|
|
|
}.bind(this));
|
|
|
|
|
window.addEventListener('mousedown', function (e) {
|
|
|
|
|
for (var i = 0; i < 100; i++) {
|
|
|
|
|
this.add();
|
|
|
|
|
}
|
|
|
|
|
}.bind(this));
|
|
|
|
|
window.addEventListener('touchstart', function (e) {
|
|
|
|
|
e.preventDefault();
|
|
|
|
|
for (var i = 0; i < 100; i++) {
|
|
|
|
|
this.add();
|
|
|
|
|
}
|
|
|
|
|
}.bind(this));
|
|
|
|
|
};
|
|
|
|
|
var app = new Build();
|
|
|
|
|
app.run();
|
|
|
|
|
})();
|
|
|
|
|
// window.addEventListener('resize', function() {
|
|
|
|
|
// canvas.width = w = window.innerWidth;
|
|
|
|
|
// canvas.height = h = window.innerHeight;
|
|
|
|
|
// }, false);
|
2024-06-07 12:15:48 +00:00
|
|
|
</script>
|
2024-06-07 13:03:58 +00:00
|
|
|
</body>
|
|
|
|
|
</html>
|
