137 lines
3.8 KiB
HTML
137 lines
3.8 KiB
HTML
<!DOCTYPE html>
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<html lang="de">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Isometric Tiles</title>
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<style>
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* { margin: 0; padding: 0; box-sizing: border-box; }
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body { overflow: hidden; background: #000; }
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canvas { display: block; }
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</style>
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</head>
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<body>
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<canvas id="c"></canvas>
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<script>
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var c = document.getElementById('c');
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var ctx = c.getContext('2d');
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var W, H;
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var TILE = 32;
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function resize() {
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W = c.width = window.innerWidth;
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H = c.height = window.innerHeight;
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}
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window.addEventListener('resize', resize);
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resize();
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var offX = 0, offY = 0;
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var speedX = 0, speedY = 0;
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var targetSpeedX = -2, targetSpeedY = 1;
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var angle = Math.PI / 6;
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function project(x, y, z) {
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var fov = 600;
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var scale = fov / (600 + z);
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var cosA = Math.cos(angle);
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var sinA = Math.sin(angle);
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var isoX = x * cosA - y * cosA;
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var isoY = x * sinA + y * sinA - z;
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var sx = isoX * scale + W / 2;
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var sy = isoY * scale + H / 2;
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return [sx, sy, scale];
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}
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function getHeight(x, y) {
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var h = 0;
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h += Math.sin(x * 0.02) * 4;
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h += Math.cos(y * 0.02) * 4;
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h += Math.sin(x * 0.04 + y * 0.02) * 2;
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h += Math.cos(y * 0.04 - x * 0.02) * 1.5;
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return h;
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}
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var tiles = [];
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function generateTiles() {
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tiles = [];
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var rangeX = Math.ceil(W / TILE) + 4;
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var rangeY = Math.ceil(H / TILE) + 4;
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for (var x = -rangeX; x <= rangeX; x++) {
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for (var y = -rangeY; y <= rangeY; y++) {
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var wx = x * TILE + offX;
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var wy = y * TILE + offY;
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var h = getHeight(wx, wy);
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tiles.push({ x: wx, y: wy, h: h });
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}
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}
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}
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function drawTiles() {
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tiles.sort(function(a, b) {
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return ((a.x + a.y) - (b.x + b.y));
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});
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for (var i = 0; i < tiles.length; i++) {
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var t = tiles[i];
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var wx = t.x, wy = t.y, h = t.h;
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var x1 = wx, y1 = wy + TILE, z1 = h;
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var x2 = wx + TILE, y2 = wy + TILE, z2 = getHeight(wx + TILE, wy + TILE);
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var x3 = wx + TILE, y3 = wy, z3 = getHeight(wx + TILE, wy);
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var x4 = wx, y4 = wy, z4 = h;
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var p1 = project(x1, y1, z1);
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var p2 = project(x2, y2, z2);
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var p3 = project(x3, y3, z3);
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var p4 = project(x4, y4, z4);
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if (p1[1] < -100 || p1[1] > H + 100) continue;
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if (p4[1] < -100 || p4[1] > H + 100) continue;
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var water = h < 2;
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var baseR = water ? 0 : 0;
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var baseG = water ? 80 : 140;
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var baseB = water ? 180 : 0;
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var lighting = 0.4 + Math.max(0, Math.sin(angle) * 0.5 + 0.3);
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var r = Math.floor(baseR * lighting);
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var g = Math.floor(baseG * lighting);
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var b = Math.floor(baseB * lighting);
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ctx.fillStyle = 'rgb(' + r + ',' + g + ',' + b + ')';
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ctx.beginPath();
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ctx.moveTo(p1[0], p1[1]);
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ctx.lineTo(p2[0], p2[1]);
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ctx.lineTo(p3[0], p3[1]);
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ctx.lineTo(p4[0], p4[1]);
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ctx.closePath();
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ctx.fill();
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ctx.strokeStyle = water ? 'rgba(0, 200, 255, 0.5)' : 'rgba(0, 255, 100, 0.5)';
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ctx.lineWidth = 0.5;
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ctx.stroke();
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}
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}
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function frame() {
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ctx.fillStyle = '#001020';
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ctx.fillRect(0, 0, W, H);
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speedX += (targetSpeedX - speedX) * 0.05;
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speedY += (targetSpeedY - speedY) * 0.05;
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offX += speedX;
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offY += speedY;
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generateTiles();
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drawTiles();
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requestAnimationFrame(frame);
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}
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frame();
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</script>
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</body>
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</html> |