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klz-cables.com/components/home/HeroIllustration.tsx
Marc Mintel 374fcc9689
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feat(a11y): implement screen reader support and accessibility optimizations
2026-02-18 00:59:31 +01:00

410 lines
14 KiB
TypeScript

'use client';
import React, { useEffect, useState } from 'react';
// Isometric grid configuration - true 2:1 isometric projection
const CELL_WIDTH = 120;
const CELL_HEIGHT = 60; // Half of width for 2:1 isometric
// Convert grid coordinates to isometric screen coordinates
function gridToScreen(col: number, row: number): { x: number; y: number } {
return {
x: (col - row) * (CELL_WIDTH / 2),
y: (col + row) * (CELL_HEIGHT / 2),
};
}
// Grid layout (10 columns x 8 rows)
const GRID = {
cols: 10,
rows: 8,
};
// Infrastructure positions
const INFRASTRUCTURE = {
solar: [
{ col: 0, row: 5 },
{ col: 1, row: 5 },
{ col: 0, row: 6 },
{ col: 1, row: 6 },
{ col: 2, row: 7 },
{ col: 3, row: 7 },
{ col: 2, row: 8 },
{ col: 3, row: 8 },
],
wind: [
{ col: 0, row: 1 },
{ col: 1, row: 2 },
{ col: 2, row: 1 },
{ col: 3, row: 0 },
{ col: 4, row: 1 },
{ col: 5, row: 0 },
],
substations: [
{ col: 3, row: 3, type: 'collection' },
{ col: 6, row: 4, type: 'distribution' },
{ col: 5, row: 7, type: 'distribution' },
],
towers: [
{ col: 4, row: 3 },
{ col: 5, row: 4 },
{ col: 4, row: 5 },
{ col: 5, row: 6 },
],
city: [
{ col: 8, row: 3, type: 'tall' },
{ col: 9, row: 4, type: 'medium' },
{ col: 8, row: 5, type: 'small' },
{ col: 9, row: 5, type: 'medium' },
],
city2: [
{ col: 6, row: 8, type: 'medium' },
{ col: 7, row: 7, type: 'tall' },
{ col: 7, row: 8, type: 'small' },
],
trees: [
{ col: 0, row: 3 },
{ col: 2, row: 6 },
{ col: 3, row: 1 },
{ col: 6, row: 2 },
{ col: 6, row: 6 },
],
};
const POWER_LINES = [
{ from: { col: 0, row: 1 }, to: { col: 1, row: 1 } },
{ from: { col: 1, row: 2 }, to: { col: 1, row: 1 } },
{ from: { col: 2, row: 1 }, to: { col: 1, row: 1 } },
{ from: { col: 1, row: 1 }, to: { col: 1, row: 3 } },
{ from: { col: 1, row: 3 }, to: { col: 3, row: 3 } },
{ from: { col: 3, row: 0 }, to: { col: 4, row: 0 } },
{ from: { col: 4, row: 0 }, to: { col: 4, row: 1 } },
{ from: { col: 5, row: 0 }, to: { col: 5, row: 1 } },
{ from: { col: 5, row: 1 }, to: { col: 4, row: 1 } },
{ from: { col: 4, row: 1 }, to: { col: 4, row: 3 } },
{ from: { col: 4, row: 3 }, to: { col: 3, row: 3 } },
{ from: { col: 0, row: 5 }, to: { col: 1, row: 5 } },
{ from: { col: 0, row: 6 }, to: { col: 0, row: 5 } },
{ from: { col: 1, row: 6 }, to: { col: 1, row: 5 } },
{ from: { col: 1, row: 5 }, to: { col: 1, row: 3 } },
{ from: { col: 2, row: 7 }, to: { col: 3, row: 7 } },
{ from: { col: 2, row: 8 }, to: { col: 2, row: 7 } },
{ from: { col: 3, row: 8 }, to: { col: 3, row: 7 } },
{ from: { col: 3, row: 7 }, to: { col: 3, row: 5 } },
{ from: { col: 3, row: 5 }, to: { col: 3, row: 3 } },
{ from: { col: 3, row: 3 }, to: { col: 4, row: 3 } },
{ from: { col: 4, row: 3 }, to: { col: 5, row: 3 } },
{ from: { col: 5, row: 3 }, to: { col: 5, row: 4 } },
{ from: { col: 5, row: 4 }, to: { col: 6, row: 4 } },
{ from: { col: 6, row: 4 }, to: { col: 7, row: 4 } },
{ from: { col: 7, row: 4 }, to: { col: 8, row: 4 } },
{ from: { col: 8, row: 4 }, to: { col: 8, row: 3 } },
{ from: { col: 8, row: 4 }, to: { col: 8, row: 5 } },
{ from: { col: 8, row: 3 }, to: { col: 9, row: 3 } },
{ from: { col: 9, row: 3 }, to: { col: 9, row: 4 } },
{ from: { col: 8, row: 5 }, to: { col: 9, row: 5 } },
{ from: { col: 3, row: 3 }, to: { col: 3, row: 5 } },
{ from: { col: 3, row: 5 }, to: { col: 4, row: 5 } },
{ from: { col: 4, row: 5 }, to: { col: 5, row: 5 } },
{ from: { col: 5, row: 5 }, to: { col: 5, row: 6 } },
{ from: { col: 5, row: 6 }, to: { col: 5, row: 7 } },
{ from: { col: 5, row: 7 }, to: { col: 6, row: 7 } },
{ from: { col: 6, row: 7 }, to: { col: 6, row: 8 } },
{ from: { col: 6, row: 7 }, to: { col: 7, row: 7 } },
{ from: { col: 7, row: 7 }, to: { col: 7, row: 8 } },
];
export default function HeroIllustration() {
const [isMobile, setIsMobile] = useState(false);
useEffect(() => {
const checkMobile = () => setIsMobile(window.innerWidth < 768);
checkMobile();
window.addEventListener('resize', checkMobile);
return () => window.removeEventListener('resize', checkMobile);
}, []);
const viewBox = isMobile ? '400 0 1000 1100' : '-400 -200 1800 1100';
const scale = isMobile ? 1.44 : 1;
const opacity = isMobile ? 0.6 : 0.85;
return (
<div className="absolute inset-0 z-0 overflow-visible bg-primary w-full h-full">
<svg
viewBox={viewBox}
className="w-full h-full transition-all duration-700"
style={{ opacity, transform: `scale(${scale})` }}
preserveAspectRatio="xMidYMid meet"
fill="none"
xmlns="http://www.w3.org/2000/svg"
aria-hidden="true"
>
<defs>
<linearGradient id="energy-pulse" x1="0%" y1="0%" x2="100%" y2="0%">
<stop offset="0%" stopColor="#82ed20" stopOpacity="0" />
<stop offset="30%" stopColor="#82ed20" stopOpacity="0.6" />
<stop offset="50%" stopColor="#9bf14d" stopOpacity="1" />
<stop offset="70%" stopColor="#82ed20" stopOpacity="0.6" />
<stop offset="100%" stopColor="#82ed20" stopOpacity="0" />
</linearGradient>
<linearGradient id="wind-flow" x1="0%" y1="0%" x2="100%" y2="0%">
<stop offset="0%" stopColor="white" stopOpacity="0" />
<stop offset="30%" stopColor="white" stopOpacity="0.4" />
<stop offset="50%" stopColor="white" stopOpacity="0.6" />
<stop offset="70%" stopColor="white" stopOpacity="0.4" />
<stop offset="100%" stopColor="white" stopOpacity="0" />
</linearGradient>
<filter id="glow" x="-50%" y="-50%" width="200%" height="200%">
<feGaussianBlur stdDeviation="3" result="blur" />
<feMerge>
<feMergeNode in="blur" />
<feMergeNode in="SourceGraphic" />
</feMerge>
</filter>
<filter id="soft-glow" x="-100%" y="-100%" width="300%" height="300%">
<feGaussianBlur stdDeviation="2" result="blur" />
<feMerge>
<feMergeNode in="blur" />
<feMergeNode in="SourceGraphic" />
</feMerge>
</filter>
</defs>
<g transform="translate(900, 100)">
{/* ISOMETRIC GRID */}
<g opacity="0.1">
{[...Array(GRID.rows + 1)].map((_, row) => {
const start = gridToScreen(0, row);
const end = gridToScreen(GRID.cols, row);
return (
<line
key={`h-${row}`}
x1={start.x}
y1={start.y}
x2={end.x}
y2={end.y}
stroke="white"
strokeWidth="1"
/>
);
})}
{[...Array(GRID.cols + 1)].map((_, col) => {
const start = gridToScreen(col, 0);
const end = gridToScreen(col, GRID.rows);
return (
<line
key={`v-${col}`}
x1={start.x}
y1={start.y}
x2={end.x}
y2={end.y}
stroke="white"
strokeWidth="1"
/>
);
})}
</g>
{/* POWER LINES */}
<g stroke="white" strokeWidth="2" strokeOpacity="0.2">
{POWER_LINES.map((line, i) => {
const from = gridToScreen(line.from.col, line.from.row);
const to = gridToScreen(line.to.col, line.to.row);
return <line key={`cable-${i}`} x1={from.x} y1={from.y} x2={to.x} y2={to.y} />;
})}
</g>
{/* ANIMATED ENERGY FLOW */}
<g filter="url(#glow)">
{POWER_LINES.map((line, i) => {
// Only animate a subset of lines to reduce main-thread work
if (i % 2 !== 0) return null;
const from = gridToScreen(line.from.col, line.from.row);
const to = gridToScreen(line.to.col, line.to.row);
const length = Math.sqrt(Math.pow(to.x - from.x, 2) + Math.pow(to.y - from.y, 2));
return (
<line
key={`flow-${i}`}
x1={from.x}
y1={from.y}
x2={to.x}
y2={to.y}
stroke="url(#energy-pulse)"
strokeWidth="3"
strokeLinecap="round"
strokeDasharray={`${length * 0.2} ${length * 0.8}`}
>
<animate
attributeName="stroke-dashoffset"
from={length}
to={0}
dur={`${1.5 + (i % 3) * 0.5}s`}
repeatCount="indefinite"
/>
</line>
);
})}
</g>
{/* SOLAR PANELS */}
{INFRASTRUCTURE.solar.map((panel, i) => {
const pos = gridToScreen(panel.col, panel.row);
return (
<g key={`solar-${i}`} transform={`translate(${pos.x}, ${pos.y})`}>
<path
d="M -20 0 L 0 -10 L 20 0 L 0 10 Z"
fill="white"
fillOpacity="0.05"
stroke="white"
strokeWidth="1"
strokeOpacity="0.2"
/>
<path
d="M -15 -5 L 0 -15 L 15 -5 L 0 5 Z"
fill="white"
fillOpacity="0.1"
stroke="white"
strokeWidth="1"
strokeOpacity="0.3"
/>
<circle r="3" fill="#82ed20" fillOpacity="0.3" filter="url(#soft-glow)">
<animate
attributeName="fillOpacity"
values="0.2;0.5;0.2"
dur="2s"
repeatCount="indefinite"
/>
</circle>
</g>
);
})}
{/* WIND TURBINES */}
{INFRASTRUCTURE.wind.map((turbine, i) => {
const pos = gridToScreen(turbine.col, turbine.row);
return (
<g key={`wind-${i}`} transform={`translate(${pos.x}, ${pos.y})`}>
<line
x1="0"
y1="0"
x2="0"
y2="-60"
stroke="white"
strokeWidth="2"
strokeOpacity="0.3"
/>
<g transform="translate(0, -60)">
{[0, 120, 240].map((angle, j) => (
<line
key={`blade-${i}-${j}`}
x1="0"
y1="0"
x2="0"
y2="-30"
stroke="white"
strokeWidth="1.5"
strokeOpacity="0.4"
transform={`rotate(${angle})`}
>
<animateTransform
attributeName="transform"
type="rotate"
from={`${angle} 0 0`}
to={`${angle + 360} 0 0`}
dur={`${3 + i}s`}
repeatCount="indefinite"
/>
</line>
))}
</g>
</g>
);
})}
{/* SUBSTATIONS */}
{INFRASTRUCTURE.substations.map((sub, i) => {
const pos = gridToScreen(sub.col, sub.row);
const isCollection = sub.type === 'collection';
return (
<g key={`substation-${i}`} transform={`translate(${pos.x}, ${pos.y})`}>
<path
d="M -25 0 L 0 -12 L 25 0 L 0 12 Z"
fill="white"
fillOpacity="0.05"
stroke="white"
strokeWidth="1"
strokeOpacity="0.2"
/>
<path
d={
isCollection
? 'M -18 0 L -18 -20 L 0 -32 L 18 -20 L 18 0'
: 'M -22 0 L -22 -25 L 0 -37 L 22 -25 L 22 0'
}
fill="white"
fillOpacity="0.08"
stroke="white"
strokeWidth="1"
strokeOpacity="0.3"
/>
</g>
);
})}
{/* TRANSMISSION TOWERS */}
{INFRASTRUCTURE.towers.map((tower, i) => {
const pos = gridToScreen(tower.col, tower.row);
return (
<g key={`tower-${i}`} transform={`translate(${pos.x}, ${pos.y})`}>
<path
d="M -6 0 L -3 -45 M 6 0 L 3 -45"
stroke="white"
strokeWidth="1.5"
strokeOpacity="0.3"
/>
<line
x1="-12"
y1="-40"
x2="12"
y2="-40"
stroke="white"
strokeWidth="1"
strokeOpacity="0.2"
/>
</g>
);
})}
{/* CITY BUILDINGS */}
{[...INFRASTRUCTURE.city, ...INFRASTRUCTURE.city2].map((building, i) => {
const pos = gridToScreen(building.col, building.row);
const heights = { tall: 70, medium: 45, small: 30 };
const height = heights[building.type as keyof typeof heights] || 45;
return (
<g key={`building-${i}`} transform={`translate(${pos.x}, ${pos.y})`}>
<path
d={`M -12 0 L -12 -${height} L 0 -${height + 6} L 0 -6 Z`}
fill="white"
fillOpacity="0.08"
stroke="white"
strokeWidth="1"
strokeOpacity="0.2"
/>
<path
d={`M 0 -6 L 0 -${height + 6} L 12 -${height} L 12 0 Z`}
fill="white"
fillOpacity="0.05"
stroke="white"
strokeWidth="1"
strokeOpacity="0.15"
/>
</g>
);
})}
</g>
</svg>
<div className="absolute inset-0 bg-gradient-to-b from-primary/10 via-transparent to-primary/9 pointer-events-none" />
</div>
);
}