Files
tscb-site/js/home-animations.js
2026-03-17 22:43:09 +00:00

316 lines
12 KiB
JavaScript

/* =====================================================
TSCB — Homepage GSAP Masterpiece
Linked ONLY in index.html | v1.0
===================================================== */
(function () {
'use strict';
/* Guard: only run when there is a hero section */
if (!document.querySelector('.hero')) return;
/* Register GSAP plugins (safe to call multiple times) */
gsap.registerPlugin(ScrollTrigger);
/* ====================================================
1. HERO — ORBS ENTRANCE + MOUSE PARALLAX
==================================================== */
/* Orbs drift in after preloader */
gsap.from('.hero-orb-1', {
scale: 0.2, opacity: 0, duration: 2.8,
ease: 'power3.out', delay: 0.85
});
gsap.from('.hero-orb-2', {
scale: 0.2, opacity: 0, duration: 3.2,
ease: 'power3.out', delay: 1.0
});
gsap.from('.hero-orb-3', {
scale: 0.2, opacity: 0, duration: 2.2,
ease: 'power3.out', delay: 1.3
});
/* Orb glow pulse after preloader (subtle depth feel) */
gsap.to('.hero-orb-1', {
opacity: 0.85, scale: 1.08,
duration: 3, ease: 'sine.inOut',
yoyo: true, repeat: -1, delay: 1.8
});
/* Orb scroll parallax */
ScrollTrigger.create({
trigger: '.hero',
start: 'top top',
end: 'bottom top',
scrub: 1.8,
onUpdate: function (self) {
var p = self.progress;
gsap.set('.hero-orb-1', { y: p * -130, x: p * 45 });
gsap.set('.hero-orb-2', { y: p * -90, x: p * -35 });
gsap.set('.hero-orb-3', { y: p * -60, rotate: p * 50 });
}
});
/* Hero mouse parallax — orbs follow the cursor */
var heroEl = document.querySelector('.hero');
heroEl.addEventListener('mousemove', function (e) {
var rect = heroEl.getBoundingClientRect();
var xR = (e.clientX - rect.left) / rect.width - 0.5;
var yR = (e.clientY - rect.top) / rect.height - 0.5;
gsap.to('.hero-orb-1', { x: xR * 55, y: yR * 35, duration: 1.8, ease: 'power2.out', overwrite: 'auto' });
gsap.to('.hero-orb-2', { x: xR * -40, y: yR * -25, duration: 2.0, ease: 'power2.out', overwrite: 'auto' });
gsap.to('.hero-orb-3', { x: xR * 25, y: yR * 18, duration: 1.4, ease: 'power2.out', overwrite: 'auto' });
});
/* ====================================================
2. COUNTER SECTION — 3-STAGE DRAMATIC ENTRANCE
(counter-item has no .wow class — safe to animate)
==================================================== */
var counterSection = document.querySelector('.our-counter');
if (counterSection) {
/* Stage 1 — the whole box scales in */
gsap.from('.counter-box', {
scrollTrigger: { trigger: '.our-counter', start: 'top 78%', once: true },
scale: 0.88, opacity: 0, borderRadius: '40px',
duration: 1.2, ease: 'power4.out',
immediateRender: false
});
/* Stage 2 — individual items slide up with stagger */
gsap.from('.counter-item', {
scrollTrigger: { trigger: '.our-counter', start: 'top 78%', once: true },
y: 60, opacity: 0,
duration: 0.85, stagger: 0.18, delay: 0.25,
ease: 'back.out(1.6)',
immediateRender: false
});
/* Stage 3 — counter h2 numbers pop with elastic */
gsap.from('.counter-title h2', {
scrollTrigger: { trigger: '.our-counter', start: 'top 78%', once: true },
scale: 0.4, opacity: 0,
duration: 1.1, stagger: 0.2, delay: 0.55,
ease: 'elastic.out(1.1, 0.52)',
immediateRender: false
});
/* Counter hover — h2 magnify */
document.querySelectorAll('.counter-item').forEach(function (item) {
item.addEventListener('mouseenter', function () {
gsap.to(item.querySelector('.counter-title h2'), {
scale: 1.12, color: '#d92800',
duration: 0.35, ease: 'back.out(2)'
});
});
item.addEventListener('mouseleave', function () {
gsap.to(item.querySelector('.counter-title h2'), {
scale: 1, color: '',
duration: 0.5, ease: 'power2.out'
});
});
});
}
/* ====================================================
3. MISSION IMAGE — SCROLL PARALLAX
(the reveal animation in function.js still runs)
==================================================== */
gsap.to('.mission-img', {
scrollTrigger: {
trigger: '.our-mission',
start: 'top bottom',
end: 'bottom top',
scrub: 1.8
},
y: -60, ease: 'none'
});
gsap.to('.mission-life-circle', {
scrollTrigger: {
trigger: '.our-mission',
start: 'top bottom',
end: 'bottom top',
scrub: 2.5
},
y: -95, rotate: 35, ease: 'none'
});
/* ====================================================
4. SERVICE TICKER — FADE IN + SUBTLE SCALE
==================================================== */
gsap.from('.service-ticker', {
scrollTrigger: { trigger: '.service-ticker', start: 'top 92%', once: true },
opacity: 0, scaleY: 0.6,
transformOrigin: 'center center',
duration: 0.7, ease: 'back.out(2)',
immediateRender: false
});
/* ====================================================
5. SERVICE CARDS — 3D TILT ON HOVER
(entrance handled by WOW.js — we layer on tilt only)
==================================================== */
document.querySelectorAll('.service-item').forEach(function (card) {
card.style.transformStyle = 'preserve-3d';
card.addEventListener('mousemove', function (e) {
var rect = card.getBoundingClientRect();
var rotX = ((e.clientY - rect.top - rect.height / 2) / (rect.height / 2)) * -10;
var rotY = ((e.clientX - rect.left - rect.width / 2) / (rect.width / 2)) * 10;
gsap.to(card, {
rotationX: rotX, rotationY: rotY,
transformPerspective: 700,
duration: 0.35, ease: 'power2.out', overwrite: 'auto'
});
});
card.addEventListener('mouseleave', function () {
gsap.to(card, {
rotationX: 0, rotationY: 0,
duration: 0.75, ease: 'elastic.out(1, 0.45)', overwrite: 'auto'
});
});
});
/* ====================================================
6. SPONSORS — GUARANTEED VISIBILITY
Two-trigger system: ScrollTrigger + load-time check
gsap.set() owns initial state (no CSS opacity:0 ever)
==================================================== */
var sponsorItems = document.querySelectorAll('.sponsor-logo-item');
if (sponsorItems.length) {
/* Immediately set invisible via GSAP — no CSS conflict */
gsap.set(sponsorItems, { opacity: 0, y: 60, scale: 0.78, rotationY: 15 });
var sponsorsPlayed = false;
function playSponsors() {
if (sponsorsPlayed) return;
sponsorsPlayed = true;
gsap.to(sponsorItems, {
opacity: 1, y: 0, scale: 1, rotationY: 0,
duration: 0.9, stagger: 0.22,
ease: 'back.out(1.8)',
clearProps: 'rotationY'
});
}
/* Trigger 1: normal scroll */
ScrollTrigger.create({
trigger: '.our-sponsors-section',
start: 'top 88%',
once: true,
onEnter: playSponsors
});
/* Trigger 2: already visible when page finishes loading */
window.addEventListener('load', function () {
setTimeout(function () {
var sec = document.querySelector('.our-sponsors-section');
if (!sec) return;
var rect = sec.getBoundingClientRect();
if (rect.top < window.innerHeight * 0.92) {
playSponsors();
}
}, 980);
});
/* 3D tilt on hover — works after animation completes */
sponsorItems.forEach(function (card) {
card.style.transformStyle = 'preserve-3d';
card.addEventListener('mousemove', function (e) {
var rect = card.getBoundingClientRect();
var rotX = ((e.clientY - rect.top - rect.height / 2) / (rect.height / 2)) * -8;
var rotY = ((e.clientX - rect.left - rect.width / 2) / (rect.width / 2)) * 8;
gsap.to(card, {
rotationX: rotX, rotationY: rotY,
transformPerspective: 500,
duration: 0.3, ease: 'power2.out', overwrite: 'auto'
});
});
card.addEventListener('mouseleave', function () {
gsap.to(card, {
rotationX: 0, rotationY: 0,
duration: 0.65, ease: 'elastic.out(1, 0.45)', overwrite: 'auto'
});
});
});
}
/* ====================================================
7. CTA BOX — SPLIT ENTRANCE
(cta-box-btn has .wow — we animate cta-box-content only)
==================================================== */
gsap.from('.cta-box-content', {
scrollTrigger: { trigger: '.cta-box', start: 'top 82%', once: true },
x: -70, opacity: 0,
duration: 1.1, ease: 'power4.out',
immediateRender: false
});
/* ====================================================
8. GLOBAL SCROLL PROGRESS + SECTION FLASH
Brief red flash on the progress bar when entering a section
==================================================== */
var sectionFlashSections = document.querySelectorAll('.our-counter, .our-services, .our-sponsors-section, .cta-box');
sectionFlashSections.forEach(function (sec) {
ScrollTrigger.create({
trigger: sec,
start: 'top 60%',
once: true,
onEnter: function () {
var bar = document.getElementById('tscb-progress');
if (!bar) return;
gsap.fromTo(bar, { boxShadow: '0 0 0 0 rgba(217,40,0,0)' },
{ boxShadow: '0 0 18px 4px rgba(217,40,0,0.7)', duration: 0.3, yoyo: true, repeat: 1, ease: 'power2.inOut' });
}
});
});
/* ====================================================
9. ABOUT-LIST ICON BOXES — STAGGER SPIN-IN
(icons inside .about-list-item — no .wow class on the icon)
==================================================== */
gsap.from('#home-about .about-list-item .icon-box', {
scrollTrigger: { trigger: '#home-about .about-content-body', start: 'top 82%', once: true },
scale: 0, rotate: -180, opacity: 0,
duration: 0.75, stagger: 0.2, delay: 0.15,
ease: 'back.out(2)',
immediateRender: false
});
/* ====================================================
10. SCROLL-TRIGGERED BACKGROUND GRADIENT SHIFT
on the hero as user scrolls away
==================================================== */
ScrollTrigger.create({
trigger: '.hero',
start: 'top top',
end: 'bottom top',
scrub: 1,
onUpdate: function (self) {
heroEl.style.filter = 'brightness(' + (1 - self.progress * 0.18) + ')';
}
});
/* ====================================================
FINALIZE: refresh ScrollTrigger after full load
(handles lazy images and font layout shifts)
==================================================== */
window.addEventListener('load', function () {
setTimeout(function () {
ScrollTrigger.refresh();
}, 300);
});
})();