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fix: snowflakes falling below window viewport

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floppydiskette 2023-11-27 21:31:22 +00:00
parent 5f713d33d2
commit 225049b510
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1 changed files with 41 additions and 40 deletions
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81
public/js/christmas/snow.js
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@ -7,7 +7,6 @@
// - Made snowflakes randomly rotate slowly either right or left
*/
// Amount of Snowflakes
var snowMax = 80;
@ -43,70 +42,72 @@ var snowStyles = "cursor: default; -webkit-user-select: none; -moz-user-select:
*/
var snow = [],
pos = [],
coords = [],
lefr = [],
marginBottom,
marginRight;
pos = [],
coords = [],
lefr = [],
marginBottom,
marginRight;
function randomise(range) {
rand = Math.floor(range * Math.random());
return rand;
rand = Math.floor(range * Math.random());
return rand;
}
function initSnow() {
var snowSize = snowMaxSize - snowMinSize;
marginBottom = window.screen.height - 5;
marginRight = document.body.clientWidth - 15;
var snowSize = snowMaxSize - snowMinSize;
marginBottom = Math.max(document.body.scrollHeight, window.innerHeight) - 5;
marginRight = document.body.clientWidth - 15;
for (i = 0; i <= snowMax; i++) {
coords[i] = 0;
lefr[i] = Math.random() * 15;
pos[i] = 0.03 + Math.random() / 10;
snow[i] = document.getElementById("flake" + i);
snow[i].style.fontFamily = "inherit";
snow[i].size = randomise(snowSize) + snowMinSize;
snow[i].style.fontSize = snow[i].size + "px";
snow[i].style.color = snowColor[randomise(snowColor.length)];
snow[i].style.zIndex = 1000;
snow[i].sink = snowSpeed * snow[i].size / 5;
snow[i].posX = randomise(marginRight - snow[i].size);
snow[i].posY = randomise(2 * marginBottom - marginBottom - 2 * snow[i].size);
snow[i].style.left = snow[i].posX + "px";
snow[i].style.top = snow[i].posY + "px";
for (i = 0; i <= snowMax; i++) {
coords[i] = 0;
lefr[i] = Math.random() * 15;
pos[i] = 0.03 + Math.random() / 10;
snow[i] = document.getElementById("flake" + i);
snow[i].style.fontFamily = "inherit";
snow[i].size = randomise(snowSize) + snowMinSize;
snow[i].style.fontSize = snow[i].size + "px";
snow[i].style.color = snowColor[randomise(snowColor.length)];
snow[i].style.zIndex = 1000;
snow[i].sink = snowSpeed * snow[i].size / 5;
snow[i].posX = randomise(marginRight - snow[i].size);
snow[i].posY = randomise(2 * marginBottom - marginBottom - 2 * snow[i].size);
snow[i].style.left = snow[i].posX + "px";
snow[i].style.top = snow[i].posY + "px";
snow[i].rotation = Math.random() * 360; // add a random initial rotation
snow[i].direction = Math.random() > 0.5 ? 1 : -1; // add a random direction
}
moveSnow();
moveSnow();
}
function resize() {
marginBottom = window.screen.height - 5;
marginRight = document.body.clientWidth - 15;
marginBottom = Math.max(document.body.scrollHeight, window.innerHeight) - 5;
marginRight = document.body.clientWidth - 15;
}
function moveSnow() {
for (i = 0; i <= snowMax; i++) {
coords[i] += pos[i];
snow[i].posY += snow[i].sink;
snow[i].style.left = snow[i].posX + lefr[i] * Math.sin(coords[i]) + "px";
snow[i].style.top = snow[i].posY + "px";
for (i = 0; i <= snowMax; i++) {
coords[i] += pos[i];
snow[i].posY += snow[i].sink;
snow[i].style.left = snow[i].posX + lefr[i] * Math.sin(coords[i]) + "px";
snow[i].style.top = snow[i].posY + "px";
if (snow[i].posY >= marginBottom - 2 * snow[i].size || parseInt(snow[i].style.left) > (marginRight - 3 * lefr[i])) {
snow[i].posX = randomise(marginRight - snow[i].size);
snow[i].posY = 0;
}
if (snow[i].posY >= marginBottom - 2 * snow[i].size || parseInt(snow[i].style.left) > (marginRight - 3 * lefr[i])) {
snow[i].posX = randomise(marginRight - snow[i].size);
snow[i].posY = 0;
}
snow[i].rotation += snow[i].sink * snow[i].direction; // increment rotation based on direction
snow[i].style.transform = "rotate(" + snow[i].rotation + "deg)"; // rotate the snowflake
}
setTimeout("moveSnow()", snowRefresh);
setTimeout("moveSnow()", snowRefresh);
}
for (i = 0; i <= snowMax; i++) {
document.write("<span id='flake" + i + "' style='" + snowStyles + "position:absolute;top:-" + snowMaxSize + "'>" + snowEntity + "</span>");
document.write("<span id='flake" + i + "' style='" + snowStyles + "position:absolute;top:-" + snowMaxSize + "'>" + snowEntity + "</span>");
}
window.addEventListener('resize', resize);
window.addEventListener('load', initSnow);