Oblique Weave

1"use client";
2 
3import type { CSSProperties } from "react";
4 
5import { cx } from "@/components/ui/cellforge-core";
6import { resolveDmxColorTokens } from "@/components/ui/cellforge-core";
7import { useCellForgePhases } from "@/components/ui/cellforge-hooks";
8import { styleOpacity, stylePx } from "@/components/ui/cellforge-core";
9import { remapOpacityToTriplet } from "@/components/ui/cellforge-core";
10import { dmxBloomRootActive, dmxDotBloomParts } from "@/components/ui/cellforge-core";
11import { useCyclePhase } from "@/components/ui/cellforge-hooks";
12import { usePrefersReducedMotion } from "@/components/ui/cellforge-hooks";
13import type { CellForgeCommonProps } from "@/components/ui/cellforge-core";
14 
15export type CellAngle7Props = CellForgeCommonProps;
16 
17const MATRIX_SIZE = 7;
18 
19const BASE_OPACITY = 0.06;
20const MID_OPACITY = 0.38;
21const HIGH_OPACITY = 0.96;
22 
23const TRIANGLE_CELLS = new Set([
24  "1,3",
25  "2,2",
26  "2,4",
27  "3,1",
28  "3,3",
29  "3,5",
30  "4,0",
31  "4,2",
32  "4,4",
33  "4,6"
34]);
35 
36function isWithinTriangleMask(row: number, col: number): boolean {
37  if (row < 0 || row >= MATRIX_SIZE || col < 0 || col >= MATRIX_SIZE) {
38    return false;
39  }
40 
41  return TRIANGLE_CELLS.has(`${row},${col}`);
42}
43 
44/** Sliding diagonal bands: same `row + col` share a phase so stripes read as continuous diagonals. */
45function opacityForCell(row: number, col: number, phase: number): number {
46  const diag = row + col;
47  const t = phase * Math.PI * 2;
48  const u = diag * 0.55 - t * 1.35;
49  const primary = 0.5 + 0.5 * Math.cos(u);
50  const harmonic = 0.5 + 0.5 * Math.cos(u * 2 + 0.4);
51  const crest = primary * primary * 0.92 + Math.max(0, harmonic - 0.35) * 0.28;
52  let opacity = BASE_OPACITY + crest * (HIGH_OPACITY - BASE_OPACITY);
53 
54  if (row === 3 && col === 3) {
55    opacity = Math.max(opacity, MID_OPACITY + (crest - 0.25) * 0.35);
56  }
57 
58  return Math.min(HIGH_OPACITY, opacity);
59}
60 
61export function CellAngle7({
62  size = 30,
63  dotSize = 6.5,
64  color = "currentColor",
65  colorPreset,
66  ariaLabel = "Loading",
67  className,
68  muted = false,
69  bloom = false,
70  halo = 0,
71  dotClassName,
72  dotShape = "circle",
73  speed = 1.65,
74  animated = true,
75  hoverAnimated = false,
76  cellPadding,
77  opacityBase,
78  opacityMid,
79  opacityPeak
80}: CellAngle7Props) {
81  const reducedMotion = usePrefersReducedMotion();
82  const { phase: matrixPhase, onMouseEnter, onMouseLeave } = useCellForgePhases({
83    animated: Boolean(animated && !reducedMotion),
84    hoverAnimated: Boolean(hoverAnimated && !reducedMotion),
85    speed
86  });
87// … truncated