Painting

Developer
Akimitsu Hamamuro
Size
18,358 Kb
Views
44,506

How do I make an painting?

Http://jsdo.it/akm2/zAOw. What is a painting? How do you make a painting? This script and codes were developed by Akimitsu Hamamuro on 13 June 2022, Monday.

Painting Previews
IQ Test

Painting - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Painting</title> <link href='http://fonts.googleapis.com/css?family=Anaheim' rel='stylesheet' type='text/css'> <link rel="stylesheet" href="css/style.css">
</head>
<body> <div id="message">Drag mouse to paint.</div>
<canvas id='c'></canvas> <script src='js/kzymdn.js'></script> <script src="js/index.js"></script>
</body>
</html>

Painting - Script Codes CSS Codes

body { font-family: 'Anaheim', sans-serif; padding: 0; margin: 0; background: #f7f6f2; overflow: hidden; -webkit-user-select: none; -moz-user-select: none; -o-user-select: none; -ms-user-select: none; user-select: none;
}
canvas { position: absolute; top: 0; left: 0; z-index: 1;
}
#message { color: #e2e2de; font-size: 32px; text-align: center; letter-spacing: 2px; position: fixed; top: 50%; z-index: 0; width: 100%; margin-top: -0.5em; text-shadow: 0 -1px 0 #d3d3d1;
}
.dg.ac { z-index: 2;
}

Painting - Script Codes JS Codes

/** * requestAnimationFrame */
window.requestAnimationFrame = (function(){ return window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function (callback) { window.setTimeout(callback, 1000 / 60); };
})();
/** * Brush */
var Brush = (function() { /** * @constructor * @public */ function Brush(x, y, color, size, inkAmount) { this.x = x || 0; this.y = y || 0; if (color !== undefined) this.color = color; if (size !== undefined) this.size = size; if (inkAmount !== undefined) this.inkAmount = inkAmount; this._drops = []; this._resetTip(); } Brush.prototype = { _SPLASHING_BRUSH_SPEED: 75, x: 0, y: 0, color: '#000', size: 35, inkAmount: 7, splashing: true, dripping: true, _latestPos: null, _strokeId: null, _drops: null, isStroke: function() { return Boolean(this._strokeId); }, startStroke: function() { if (this.isStroke()) return; this._resetTip(); // http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript this._strokeId = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) { var r, v; r = Math.random() * 16 | 0; v = c === 'x' ? r : (r & 0x3 | 0x8); return v.toString(16); }); }, endStroke: function() { this._strokeId = this._latestPos = null; }, render: function(ctx, x, y) { var isStroke = this.isStroke(), dx, dy, i, len; if (!this._latestPos) this._latestPos = {}; this._latestPos.x = this.x; this._latestPos.y = this.y; this.x = x; this.y = y; if (this._drops.length) { var drops = this._drops, drop, sizeSq = this.size * this.size; for (i = 0, len = drops.length; i < len; i++) { drop = drops[i]; dx = this.x - drop.x; dy = this.y - drop.y; if ( (isStroke && sizeSq > dx * dx + dy * dy && this._strokeId !== drop.strokeId) || drop.life <= 0 ) { drops.splice(i, 1); len--; i--; continue; } drop.render(ctx); } } if (isStroke) { var tip = this._tip, strokeId = this._strokeId, dist; dx = this.x - this._latestPos.x; dy = this.y - this._latestPos.y; dist = Math.sqrt(dx * dx + dy * dy); if (this.splashing && dist > this._SPLASHING_BRUSH_SPEED) { var maxNum = (dist - this._SPLASHING_BRUSH_SPEED) * 0.5 | 0, r, a, sr, sx, sy; ctx.save(); ctx.fillStyle = this.color; ctx.beginPath(); for (i = 0, len = maxNum * Math.random() | 0; i < len; i++) { r = (dist - 1) * Math.random() + 1; a = Math.PI * 2 * Math.random(); sr = 5 * Math.random(); sx = this.x + r * Math.sin(a); sy = this.y + r * Math.cos(a); ctx.moveTo(sx + sr, sy); ctx.arc(sx, sy, sr, 0, Math.PI * 2, false); } ctx.fill(); ctx.restore(); } else if (this.dripping && dist < this.inkAmount * 2 && Math.random() < 0.05) { this._drops.push(new Drop( this.x, this.y, (this.size + this.inkAmount) * 0.5 * ((0.25 - 0.1) * Math.random() + 0.1), this.color, this._strokeId )); } for (i = 0, len = tip.length; i < len; i++) { tip[i].render(ctx, dx, dy, dist); } } }, dispose: function() { this._tip.length = this._drops.length = 0; }, _resetTip: function() { var tip = this._tip = [], rad = this.size * 0.5, x0, y0, a0, x1, y1, a1, cv, sv, i, len; a1 = Math.PI * 2 * Math.random(); len = rad * rad * Math.PI / this.inkAmount | 0; if (len < 1) len = 1; for (i = 0; i < len; i++) { x0 = rad * Math.random(); y0 = x0 * 0.5; a0 = Math.PI * 2 * Math.random(); x1 = x0 * Math.sin(a0); y1 = y0 * Math.cos(a0); cv = Math.cos(a1); sv = Math.sin(a1); tip.push(new Hair( this.x + x1 * cv - y1 * sv, this.y + x1 * sv + y1 * cv, this.inkAmount, this.color )); } } }; /** * Hair * @private */ function Hair(x, y, inkAmount, color) { this.x = x || 0; this.y = y || 0; this.inkAmount = inkAmount; this.color = color; this._latestPos = { x: this.x, y: this.y }; } Hair.prototype = { x: 0, y: 0, inkAmount: 7, color: '#000', _latestPos: null, render: function(ctx, offsetX, offsetY, offsetLength) { this._latestPos.x = this.x; this._latestPos.y = this.y; this.x += offsetX; this.y += offsetY; var per = offsetLength ? this.inkAmount / offsetLength : 0; if (per > 1) per = 1; else if (per < 0) per = 0; ctx.save(); ctx.lineCap = ctx.lineJoin = 'round'; ctx.strokeStyle = this.color; ctx.lineWidth = this.inkAmount * per; ctx.beginPath(); ctx.moveTo(this._latestPos.x, this._latestPos.y); ctx.lineTo(this.x, this.y); ctx.stroke(); ctx.restore(); } }; /** * Drop * @private */ function Drop(x, y, size, color, strokeId) { this.x = x || 0; this.y = y || 0; this.size = size; this.color = color; this.strokeId = strokeId; this.life = this.size * 1.5; this._latestPos = { x: this.x, y: this.y }; } Drop.prototype = { x: 0, y: 0, size: 7, color: '#000', strokeId: null, life: 0, _latestPos: null, _xOffRatio: 0, render: function(ctx) { if (Math.random() < 0.03) { this._xOffRatio += 0.06 * Math.random() - 0.03; } else if (Math.random() < 0.1) { this._xOffRatio *= 0.003; } this._latestPos.x = this.x; this._latestPos.y = this.y; this.x += this.life * this._xOffRatio; this.y += (this.life * 0.5) * Math.random(); this.life -= (0.05 - 0.01) * Math.random() + 0.01; ctx.save(); ctx.lineCap = ctx.lineJoin = 'round'; ctx.strokeStyle = this.color; ctx.lineWidth = this.size + this.life * 0.3; ctx.beginPath(); ctx.moveTo(this._latestPos.x, this._latestPos.y); ctx.lineTo(this.x, this.y); ctx.stroke(); ctx.restore(); ctx.restore(); } }; return Brush;
})();
// Initialize
(function() { // Vars var canvas, context, centerX, centerY, mouseX = 0, mouseY = 0, isMouseDown = false, brush, gui, control, guiColorCtr, guiSizeCtr, guiIsRandColorCtr; // Event Listeners function resize(e) { canvas.width = window.innerWidth; canvas.height = window.innerHeight; centerX = canvas.width * 0.5; centerY = canvas.height * 0.5; context = canvas.getContext('2d'); control.clear(); } function mouseMove(e) { mouseX = e.clientX; mouseY = e.clientY; } function mouseDown(e) { mouseX = e.clientX; mouseY = e.clientY; if (control.isRandomColor) { brush.color = randomColor(); guiColorCtr.updateDisplay(); } if (control.isRandomSize) { brush.size = random(51, 5) | 0; guiSizeCtr.updateDisplay(); } brush.startStroke(mouseX, mouseY); } function mouseUp(e) { brush.endStroke(); }	var touched = false; function touchMove(e) {	var t = e.touches[0]; mouseX = t.clientX; mouseY = t.clientY; } function touchStart(e) {	if (touched) return;	touched = true;	var t = e.touches[0]; mouseX = t.clientX; mouseY = t.clientY; if (control.isRandomColor) { brush.color = randomColor(); guiColorCtr.updateDisplay(); } if (control.isRandomSize) { brush.size = random(51, 5) | 0; guiSizeCtr.updateDisplay(); } brush.startStroke(mouseX, mouseY); } function touchEnd(e) {	touched = false; brush.endStroke(); } // Helpers function randomColor() { var r = random(256) | 0, g = random(256) | 0, b = random(256) | 0; return 'rgb(' + r + ',' + g + ',' + b + ')'; } function random(max, min) { if (typeof max !== 'number') { return Math.random(); } else if (typeof min !== 'number') { min = 0; } return Math.random() * (max - min) + min; } // GUI Control control = { isRandomColor: true, isRandomSize: false, clear: function(e) { context.clearRect(0, 0, canvas.width, canvas.height); brush.dispose(); } }; // Init canvas = document.getElementById('c'); brush = new Brush(centerX, centerY, randomColor()); window.addEventListener('resize', resize, false); resize(null); canvas.addEventListener('mousemove', mouseMove, false); canvas.addEventListener('mousedown', mouseDown, false); canvas.addEventListener('mouseout', mouseUp, false); canvas.addEventListener('mouseup', mouseUp, false); canvas.addEventListener('touchmove', touchMove, false); canvas.addEventListener('touchstart', touchStart, false); canvas.addEventListener('touchcancel', touchEnd, false); canvas.addEventListener('touchend', touchEnd, false); // GUI gui = new dat.GUI(); guiColorCtr = gui.addColor(brush, 'color').name('Color').onChange(function() { control.isRandomColor = false; guiIsRandColorCtr.updateDisplay(); }); guiSizeCtr = gui.add(brush, 'size', 5, 50).name('Size'); gui.add(brush, 'inkAmount', 1, 30).name('Ink Amount'); gui.add(brush, 'splashing').name('Splashing'); gui.add(brush, 'dripping').name('Dripping'); guiIsRandColorCtr = gui.add(control, 'isRandomColor').name('Random Color'); gui.add(control, 'isRandomSize').name('Random Size'); gui.add(control, 'clear').name('Clear'); gui.close(); // Start Update var loop = function() { brush.render(context, mouseX, mouseY); requestAnimationFrame(loop); }; loop();
})();
Painting - Script Codes
Painting - Script Codes
Home Page Home
Developer Akimitsu Hamamuro
Username akm2
Uploaded June 13, 2022
Rating 4.5
Size 18,358 Kb
Views 44,506
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