Mess

Developer
Satchmorun
Size
3,472 Kb
Views
22,264
  1. Mess Previews
  2. Mess HTML Codes
  3. Mess CSS Codes
  4. Mess JS Codes

How do I make an mess?

A variation on a theme.. What is a mess? How do you make a mess? This script and codes were developed by Satchmorun on 28 August 2022, Sunday.

Mess Previews
IQ Test

Mess - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Mess</title> <link rel="stylesheet" href="css/style.css">
</head>
<body> <canvas id="canvas"></canvas> <script src="js/index.js"></script>
</body>
</html>

Mess - Script Codes CSS Codes

body { margin: 0; padding: 0; overflow: hidden;
}

Mess - Script Codes JS Codes

var canvas = document.getElementById('canvas');
var ctx = canvas.getContext('2d');
'floor|random|round|abs|sqrt|PI|atan2|sin|cos|pow|max|min|hypot' .split('|') .forEach(function(p) { window[p] = Math[p]; });
var TAU = PI*2;
function r(n) { return random()*n; }
function rrng(lo, hi) { return lo + r(hi-lo); }
function rint(lo, hi) { return lo + floor(r(hi - lo + 1)); }
function choose(args) { return args[rint(0, args.length-1)]; }
/*---------------------------------------------------------------------------*/
var W, H, frame, time, DPR;
function dpr(n) { return DPR*n; }
function resize() { var w = innerWidth; var h = innerHeight; DPR = devicePixelRatio || 1; canvas.style.width = w+'px'; canvas.style.height = h+'px'; W = canvas.width = w * DPR; H = canvas.height = h * DPR;
}
function loop(t) { frame = requestAnimationFrame(loop); draw(); time++;
}
function pause() { cancelAnimationFrame(frame); frame = frame ? null : requestAnimationFrame(loop);
}
function reset() { cancelAnimationFrame(frame); resize(); ctx.clearRect(0, 0, W, H); init(); time = 0; frame = requestAnimationFrame(loop);
}
/*---------------------------------------------------------------------------*/
function Vector(x, y) { this.x = x; this.y = y;
}
Vector.add = function(a, b) { return new Vector(a.x + b.x, a.y + b.y); };
Vector.sub = function(a, b) { return new Vector(a.x - b.x, a.y - b.y); };
Vector.mul = function(a, n) { return new Vector(a.x * n, a.y * n); };
Vector.div = function(a, n) { return new Vector(a.x / n, a.y / n); };
Vector.prototype.clone = function() { return new Vector(this.x, this.y);
};
Vector.prototype.add = function(other) { this.x += other.x; this.y += other.y; return this;
};
Vector.prototype.sub = function(other) { this.x -= other.x; this.y -= other.y; return this;
};
Vector.prototype.mul = function(n) { this.x *= n; this.y *= n; return this;
};
Vector.prototype.div = function(n) { this.x /= n; this.y /= n; return this;
};
Vector.prototype.mag = function() { var x = this.x, y = this.y; return sqrt(x*x + y*y);
};
Vector.prototype.normalize = function() { return this.div(this.mag());
};
Vector.prototype.constrain = function(n) { var m = this.mag(); return m > n ? this.mul(n/m) : this;
};
Vector.prototype.zero = function() { this.x = 0; this.y = 0;
};
function vec(x, y) { return new Vector(x, y);
}
/*---------------------------------------------------------------------------*/
function Particle(max, loc) { this.loc = loc; this.vel = vec(0, 0); this.max = max; this.acc = vec(0, 0); //this.relocate();
}
Particle.prototype.relocate = function() { this.loc = vec(rrng(L, R), rrng(T, B)); var t = r(TAU); var m = this.max; this.vel = vec(m*cos(t), m*sin(t));
};
Particle.prototype.applyForce = function(force) { this.acc.add(force);
};
Particle.prototype.follow = function(field) { var desired = field.forceAt(this.loc); var steer = Vector.sub(desired, this.vel); this.applyForce(steer.constrain(this.max*0.8));
};
Particle.prototype.seekFriend = function() { var desired = Vector.sub(this.friend.loc, this.loc); var steer = Vector.sub(desired, this.vel); this.applyForce(steer.constrain(this.max*0.35));
};
Particle.prototype.move = function(draw) { if (draw) { ctx.moveTo(this.loc.x, this.loc.y); this.vel.add(this.acc).constrain(this.max); this.loc.add(this.vel); ctx.lineTo(this.loc.x, this.loc.y); } else { this.vel.add(this.acc).constrain(this.max); this.loc.add(this.vel); } this.acc.zero(); if (this.loc.x < L) { this.loc.x = L; this.vel.x *= -1; } if (this.loc.y < T) { this.loc.y = T; this.vel.y *= -1; } if (this.loc.x > R) { this.loc.x = R; this.vel.x *= -1; } if (this.loc.y > B) { this.loc.y = B; this.vel.y *= -1; }
};
/*---------------------------------------------------------------------------*/
function Field(x, y, w, h, res) { this.x = x; this.y = y; this.w = w; this.h = h; this.res = res; this.forces = []; this.imax = ~~(w/res); this.jmax = ~~(h/res); for (var i = 0; i <= w/res; i++) { this.forces[i] = []; for (var j = 0; j <= h/res; j++) { var t = r(TAU); var m = r(dpr(5)); this.forces[i][j] = vec(cos(t), sin(t)).mul(m); } }
}
Field.prototype = { forceAt: function(v) { var i = ~~((v.x - this.x) / this.res); var j = ~~((v.y - this.y) / this.res); i = max(i, 0); i = min(i, this.imax); j = max(j, 0); j = min(j, this.jmax); return this.forces[i][j]; }, reset: function() { for (var i = 0; i <= this.imax; i++) { for (var j = 0; j <= this.jmax; j++) { var t = r(TAU); var m = r(dpr(5)); this.forces[i][j] = vec(cos(t), sin(t)).mul(m); } } }, perturb: function(n) { var ii, jj, t; for (; n >0; n--) { ii = rint(0, this.imax); jj = rint(0, this.jmax); t = r(TAU); this.forces[ii][jj] = vec(cos(t), sin(t)).mul(r(dpr(5))); } }, draw: function() { var res = this.res; ctx.save(); for (var i = 0; i <= this.imax; i++) { for (var j = 0; j <= this.jmax; j++) { var force = Vector.mul(this.forces[i][j], dpr(3)); var x = this.x + i*res + res/2; var y = this.y + j*res + res/2; ctx.moveTo(x, y); ctx.lineTo(x+force.x, y+force.y); } } ctx.strokeStyle = 'rgba(0, 0, 0, 0.5)'; ctx.stroke(); ctx.restore(); }
};
/*---------------------------------------------------------------------------*/
var P, particles;
var L, R;
var field;
function init() { L = W/2-dpr(300); R = W/2+dpr(300); T = H/2-dpr(300); B = H/2+dpr(300); P = 14000; particles = new Array(P); var n = dpr(150); for (var i = 0; i < P; i++) {
// var y = H/2-dpr(300)+i; var t = r(TAU); particles[i] = new Particle(dpr(3), vec(W/2 + n*cos(t), H/2 + n*sin(t))); } for (i = 1; i < P; i++) { particles[i].friend = particles[i-1]; } particles[0].friend = particles[P-1]; field = new Field(L, T, dpr(600), dpr(600), dpr(10)); ctx.strokeStyle = black; ctx.fillStyle = white;
}
var black = 'rgba(0, 0, 0, 0.4)';
var white = 'rgba(255, 255, 255, 0.1)';
function draw() { //if (time % 120 === 0) { //field.reset(); //} field.perturb(20); ctx.fillRect(0, 0, W, H); ctx.beginPath(); for (var i = 0; i < P; i++) { var p = particles[i]; p.follow(field); p.seekFriend(); p.move(true); } /*ctx.moveTo(particles[0].loc.x, particles[0].loc.y); for (var i = 0; i < P; i++) { var f = particles[i].friend; ctx.lineTo(f.loc.x, f.loc.y); }*/ ctx.stroke();
}
/*---------------------------------------------------------------------------*/
document.onclick = pause;
document.ondblclick = reset;
reset();
Mess - Script Codes
Mess - Script Codes
Home Page Home
Developer Satchmorun
Username satchmorun
Uploaded August 28, 2022
Rating 4.5
Size 3,472 Kb
Views 22,264
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