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rangoli.js
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rangoli.js
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const clearbtn = document.querySelector("#clear");
const colorpicker = document.querySelector("#colpick");
let r,g,b;
function hideButtons() {
clearbtn.style.opacity = "0";
}
function showButtons() {
clearbtn.style.opacity = "1";
}
function setup() {
let c = createCanvas(window.innerWidth, window.innerHeight-80);
c.style('margin','0 auto');
background(0);
noStroke();
doRandomColors();
translate(width/2,height/2);
displayInstructions();
}
function displayInstructions() {
fill(random(0,255),random(0,255),random(0,255));
textStyle(BOLD);
textSize(60);
// let chars = ['R','A','N','G','O','L','I'];
let chars = ['रं', 'गो', 'ली'];
let x = -100;
text(chars[0], x, -220, 200, 100);
fill(random(0,255),random(0,255),random(0,255));
text(chars[1], x+50, -220, 200, 100);
fill(random(0,255),random(0,255),random(0,255));
text(chars[2], x+120, -220, 200, 100);
textStyle(NORMAL);
fill(255);
textSize(32);
text("< design your rangoli here >", -100, -100, 210, 100);
textSize(16);
text("pick your colors from top right...", -140, 0 , 300, 100);
text("...drag your mouse or swipe your finger", -120, 40 , 300, 100);
textSize(12);
// text("@savvysiddharth", -40, 200 , 300, 100);
}
let diameter = 5;
let untouched = true;
function isMouseInCanvas() {
return mouseX >= 0 && mouseX <= width && mouseY >= 0 && mouseY <= height;
}
function setDiameterSize(size) {
diameter = parseInt(size);
}
function draw() {
translate(width/2,height/2);
fill(r,g,b);
if(mouseIsPressed && isMouseInCanvas()) {
if(untouched) {
background(0);
showButtons();
}
untouched = false;
let x = map(mouseX, 0, width, -width/2, width/2);
let y = map(mouseY, 0, height, -height/2, height/2);
ellipse(x,y, diameter,diameter);
ellipse(-x,y, diameter,diameter);
ellipse(x,-y, diameter,diameter);
ellipse(-x,-y, diameter,diameter);
ellipse(y,x, diameter,diameter);
ellipse(-y,x, diameter,diameter);
ellipse(y,-x, diameter,diameter);
ellipse(-y,-x, diameter,diameter);
}
}
let getRandomColors = false;
function mouseReleased() {
if(getRandomColors && isMouseInCanvas()) {
randomizeColor();
}
}
function randomizeColor() {
r = parseInt(random(50, 255));
g = parseInt(random(50, 255));
b = parseInt(random(50, 255));
colorpicker.value = rgbToHex(r,g,b);
}
function clearCanvas() {
window.navigator.vibrate(200);
background(0);
displayInstructions();
hideButtons();
untouched = true;
}
function changeColor(picker) {
getRandomColors = false;
function cutHex(h) {return (h.charAt(0)=="#") ? h.substring(1,7):h}
function hexToR(h) {return parseInt((cutHex(h)).substring(0,2),16)}
function hexToG(h) {return parseInt((cutHex(h)).substring(2,4),16)}
function hexToB(h) {return parseInt((cutHex(h)).substring(4,6),16)}
const hexColor = picker.value;
r = hexToR(hexColor);
g = hexToG(hexColor);
b = hexToB(hexColor);
}
function doRandomColors() {
window.navigator.vibrate(100);
getRandomColors = true;
randomizeColor();
}
function rgbToHex(r,g,b) {
var toHex = function (rgb) {
var hex = Number(rgb).toString(16);
if (hex.length < 2) {
hex = "0" + hex;
}
return hex;
};
var red = toHex(r);
var green = toHex(g);
var blue = toHex(b);
return '#'+red+green+blue;
}
hideButtons(); // initially hidden