Turret of Order

Developer
Matei Copot
Size
4,000 Kb
Views
54,648
  1. Turret of Order Previews
  2. Turret of Order HTML Codes
  3. Turret of Order CSS Codes
  4. Turret of Order JS Codes

How do I make an turret of order?

Keeping the funny squares away who are trying to make it join the fun. Here's a secret: the turret is actually funny inside, but doesn't want to admit it. What is a turret of order? How do you make a turret of order? This script and codes were developed by Matei Copot on 12 June 2022, Sunday.

Turret of Order Previews
IQ Test

Turret of Order - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Turret of Order</title> <style> /* NOTE: The styles were added inline because Prefixfree needs access to your styles and they must be inlined if they are on local disk! */ body {	overflow: hidden;	background-color: black;
}
canvas {	position: absolute;	top: calc( 50% - 300px );	left: calc( 50% - 300px );
}
#overlay {	width: 600px;	height: 600px;	position: absolute;	top: calc( 50% - 300px );	left: calc( 50% - 300px );	background: radial-gradient( 300px at 300px 300px, rgba(0,0,0,0) 0%, rgba(0,0,0,1) 100% );
} </style> <script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
</head>
<body> <canvas id=c></canvas>
<div id=overlay></div> <script src="js/index.js"></script>
</body>
</html>

Turret of Order - Script Codes CSS Codes

body {	overflow: hidden;	background-color: black;
}
canvas {	position: absolute;	top: calc( 50% - 300px );	left: calc( 50% - 300px );
}
#overlay {	width: 600px;	height: 600px;	position: absolute;	top: calc( 50% - 300px );	left: calc( 50% - 300px );	background: radial-gradient( 300px at 300px 300px, rgba(0,0,0,0) 0%, rgba(0,0,0,1) 100% );
}

Turret of Order - Script Codes JS Codes

var w = c.width = 600,	h = c.height = 600,	ctx = c.getContext( '2d' ),	opts = {	shotBaseDelay: 10,	shotAddedDelay: 8,	radius: 400,	bulletVel: 1,	bulletAcc: .1,	targetSpeed: 2,	targetSpawnDelay: 18,	turretBarrelLength: 15,	turretBarrelWidth: 5,	turretRadius: 10,	targetBaseSquareSize: 10,	targetAddedSquareSize: 3,	targetBaseShine: 50,	targetAddedShine: 5,	baseTargetRotSpeed: .08,	addedTargetRotSpeed: .01,	baseTargetResizeSpeed: .08,	addedTargetResizeSpeed: .01,	baseTargetShineSpeed: .08,	addedTargetShineSpeed: .01,	targetDespawnDelay: 40,	targetDespawnCircleWidth: 3,	targetParticles: 3,	targetParticleDistance: 10,	targetParticleSize: 5,	turretParticleRadius: 4,	turretInnerEmptyRadius: 6,	backgroundColor: 'rgba(20,20,20,.1)',	turretBaseColor: 'rgba(230,230,230,1)',	turretBarrelColor: '#fff',	turretParticleTemplateColor: 'hsla(hue,100%,40%,1)',	bulletColor: '#eee',	templateTargetSquareColor: 'hsl(hue,80%,light%)',	templateTargetSquareAlpColor: 'hsla(hue,80%,light%,alp)'	},	tau = Math.PI * 2,	tick = 0,	turret,	bullets = [],	targets = [];
function Turret(){	this.dir =	this.dirTarget =	this.dirDelta =	this.tick = 0;	this.delay = 0;	this.target;	this.genTarget();	this.pickTarget();
}
Turret.prototype.genTarget = function(){	targets.push( new Target( Math.random() * tau ) );
}
Turret.prototype.shoot = function(){	if( !this.rest )	bullets.push( new Bullet( this.target ) );	this.pickTarget();
}
Turret.prototype.pickTarget = function(){	this.delay = opts.shotBaseDelay + opts.shotAddedDelay * Math.random() |0;	this.tick = 0;	var i = 0;	while( i < targets.length && ( targets[ i ].len > 200 || targets[ i ].targeted ) )	++i;	this.rest = i >= targets.length;	if( this.rest )	return -1;	this.target = targets[ i ];	this.target.targeted = true;	this.dir = this.dirTarget;	this.dirTarget = this.target.ang;	this.dirDelta = this.dirTarget - this.dir;	if( this.dirDelta > Math.PI )	this.dirDelta -= tau;	if( this.dirDelta < -Math.PI )	this.dirDelta += tau;
}
Turret.prototype.update = function(){	++this.tick;	if( this.tick > this.delay )	this.shoot();
}
Turret.prototype.render = function(){	var linear = this.rest ? 1 : this.tick / this.delay,	armonic = -Math.cos( linear * Math.PI ) / 2 + .5,	angle = this.dir + this.dirDelta * armonic;	ctx.fillStyle = opts.turretBarrelColor;	ctx.rotate( angle );	ctx.fillRect( opts.turretInnerEmptyRadius, -opts.turretBarrelWidth / 2, opts.turretBarrelLength - opts.turretInnerEmptyRadius, opts.turretBarrelWidth );	ctx.rotate( -angle );	ctx.fillStyle = opts.turretBaseColor;	ctx.beginPath();	ctx.arc( 0, 0, opts.turretRadius, 0, tau );	ctx.arc( 0, 0, opts.turretInnerEmptyRadius, 0, tau, true );	ctx.fill();	ctx.fillStyle = opts.turretParticleTemplateColor.replace( 'hue', tick );	ctx.beginPath();	ctx.arc( 0, 0, opts.turretParticleRadius, 0, tau );	ctx.fill();
}
function Bullet( target ){	var cos = Math.cos( target.ang ), sin = Math.sin( target.ang );	this.target = target;	this.len = opts.turretBarrelLength;	this.px = cos * this.len;	this.py = sin * this.len;	this.vel = opts.bulletVel;	this.vx = cos * opts.bulletVel;	this.vy = sin * opts.bulletVel;	// this.acc = opts.bulletAcc;	this.ax = cos * opts.bulletAcc;	this.ay = sin * opts.bulletAcc;
}
Bullet.prototype.update = function(){	this.len += this.vel += opts.bulletAcc;	this.px += this.vx += this.ax;	this.py += this.vy += this.ay;	if( this.len >= this.target.len ){	this.target.getHit();	this.dead = true;	}
}
Bullet.prototype.render = function(){	ctx.lineWidth = opts.turretBarrelWidth / ( this.vel / opts.bulletVel );	ctx.beginPath();	ctx.moveTo( this.px, this.py );	ctx.lineTo( this.px - this.vx * 2, this.py - this.vy * 2 );	ctx.stroke();
}
function Target( ang ){	var cos = Math.cos( ang ),	sin = Math.sin( ang );	this.ang = ang;	this.cos = cos;	this.sin = sin;	this.len = opts.radius;	this.px = cos * opts.radius;	this.py = sin * opts.radius;	// this.vel = opts.targetSpeed;	this.vx = cos * -opts.targetSpeed;	this.vy = sin * -opts.targetSpeed;	this.tick = 0;	this.color = opts.templateTargetSquareColor.replace( 'hue', ang / tau * 360 );	this.alpColor = opts.templateTargetSquareAlpColor.replace( 'hue', ang / tau * 360 );	this.rotateSpeed = opts.baseTargetRotSpeed + opts.addedTargetRotSpeed * Math.random();	this.resizeSpeed = opts.baseTargetResizeSpeed + opts.addedTargetResizeSpeed * Math.random();	this.shineSpeed = opts.baseTargetShineSpeed + opts.addedTargetShineSpeed * Math.random();
}
Target.prototype.update = function(){	if( this.hit )	return this.updateHit();	this.len -= opts.targetSpeed;	this.px += this.vx;	this.py += this.vy;	++this.tick;
}
Target.prototype.getHit = function(){	this.hit = true;	this.tick = 0;
}
Target.prototype.updateHit = function(){	++this.tick;	if( this.tick > opts.targetDespawnDelay )	this.dead = true;
}
Target.prototype.render = function(){	if( this.hit )	return this.renderHit();	var ang = this.tick * this.rotateSpeed,	size = opts.targetBaseSquareSize + opts.targetAddedSquareSize * Math.cos( this.resizeSpeed * this.tick );	ctx.fillStyle = this.color.replace( 'light', opts.targetBaseShine + opts.targetAddedShine * Math.cos( this.shineSpeed * this.tick ) );;	ctx.translate( this.px, this.py );	ctx.rotate( ang );	ctx.fillRect( -size / 2, -size / 2, size, size );	ctx.rotate( -ang );	ctx.translate( -this.px, -this.py );	for( var i = 0; i < opts.targetParticles; ++i ){	var len = Math.random() * opts.targetParticleDistance,	ang = Math.random() * tau,	size = Math.random() * opts.targetParticleSize;	ctx.fillRect( this.px + len * Math.cos( ang ) - size / 2, this.py + len * Math.sin( ang ) - size / 2, size, size );	}
}
Target.prototype.renderHit = function(){	var linear = this.tick / opts.targetDespawnDelay,	armonic = -Math.cos( linear * Math.PI ) / 2 + .5;	ctx.fillStyle = this.alpColor.replace( 'light', 25 + 75 * ( 1 - linear ) ).replace( 'alp', .3 * ( 1 - linear ) );	var spacing = opts.targetDespawnCircleWidth * armonic;	ctx.beginPath();	ctx.arc( 0, 0, this.len, 0, tau );	ctx.arc( -this.cos * spacing, -this.sin * spacing, this.len - spacing, 0, tau, true );	ctx.fill();
}
function anim(){	window.requestAnimationFrame( anim );	++tick;	ctx.fillStyle = opts.backgroundColor;	ctx.fillRect( 0, 0, w, h );	if( tick % opts.targetSpawnDelay === 0 )	turret.genTarget();	ctx.translate( w / 2, h / 2 );	turret.update();	targets.map( function( target ){ target.update(); } );	bullets.map( function( bullet ){ bullet.update(); } );	for( var i = 0; i < bullets.length; ++i )	if( bullets[ i ].dead ){	bullets.splice( i, 1 );	--i;	}	for( var i = 0; i < targets.length; ++i )	if( targets[ i ].dead ){	targets.splice( i, 1 );	--i;	}	ctx.fillStyle = 'rgb(30,30,30)';	ctx.beginPath();	ctx.arc( 0, 0, opts.turretBarrelLength, 0, tau );	ctx.arc( 0, 0, opts.turretRadius - 1, 0, tau, true );	ctx.fill();	turret.render();	ctx.globalCompositeOperation = 'lighter';	ctx.strokeStyle = opts.bulletColor;	targets.map( function( target ){ target.render(); } );	bullets.map( function( bullet ){ bullet.render(); } );	ctx.globalCompositeOperation = 'source-over';	ctx.translate( -w / 2, -h / 2 );
}
turret = new Turret();
ctx.fillStyle = '#222';
ctx.fillRect( 0, 0, w, h );
anim();
Turret of Order - Script Codes
Turret of Order - Script Codes
Home Page Home
Developer Matei Copot
Username towc
Uploaded June 12, 2022
Rating 4.5
Size 4,000 Kb
Views 54,648
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