Vertex Chase

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 { dmxBloomHaloSpreadClass, dmxBloomRootActive, dmxDotBloomParts } from "@/components/ui/cellforge-core";
11import { usePrefersReducedMotion } from "@/components/ui/cellforge-hooks";
12import { useSteppedCycle } from "@/components/ui/cellforge-hooks";
13import type { CellForgeCommonProps } from "@/components/ui/cellforge-core";
14 
15export type CellAngle4Props = CellForgeCommonProps;
16 
17const MATRIX_SIZE = 7;
18const STEP_COUNT = 28;
19const BASE_OPACITY = 0.0;
20const MID_OPACITY = 0.0;
21const HIGH_OPACITY = 0.96;
22const TRAIL_LEVELS = [HIGH_OPACITY, 0.52, 0.3] as const;
23 
24const TRIANGLE_CELLS = new Set([
25  "1,3",
26  "2,2",
27  "2,4",
28  "3,1",
29  "3,3",
30  "3,5",
31  "4,0",
32  "4,2",
33  "4,4",
34  "4,6"
35]);
36 
37const PERIMETER_PATH: ReadonlyArray<readonly [number, number]> = [
38  [1, 3],
39  [2, 2],
40  [3, 1],
41  [4, 0],
42  [4, 2],
43  [4, 4],
44  [4, 6],
45  [3, 5],
46  [2, 4]
47];
48 
49function isWithinTriangleMask(row: number, col: number): boolean {
50  if (row < 0 || row >= MATRIX_SIZE || col < 0 || col >= MATRIX_SIZE) {
51    return false;
52  }
53 
54  return TRIANGLE_CELLS.has(`${row},${col}`);
55}
56 
57export function CellAngle4({
58  size = 30,
59  dotSize = 6.5,
60  color = "currentColor",
61  colorPreset,
62  ariaLabel = "Loading",
63  className,
64  muted = false,
65  bloom = false,
66  halo = 0,
67  dotClassName,
68  dotShape = "circle",
69  speed = 1.5,
70  animated = true,
71  hoverAnimated = false,
72  cellPadding,
73  opacityBase,
74  opacityMid,
75  opacityPeak
76}: CellAngle4Props) {
77  const reducedMotion = usePrefersReducedMotion();
78  const { phase: matrixPhase, onMouseEnter, onMouseLeave } = useCellForgePhases({
79    animated: Boolean(animated && !reducedMotion),
80    hoverAnimated: Boolean(hoverAnimated && !reducedMotion),
81    speed
82  });
83  const step = useSteppedCycle({
84    active: !reducedMotion && matrixPhase !== "idle",
85    cycleMsBase: 1450,
86    steps: STEP_COUNT,
87    speed,
88  });
89 
90  const frame = reducedMotion || matrixPhase === "idle" ? 0 : step;
91  const segmentLength = Math.max(1, Math.floor(STEP_COUNT / 3));
92 
93  const gap =
94    cellPadding ?? Math.max(1, Math.floor((size - dotSize * MATRIX_SIZE) / (MATRIX_SIZE - 1)));
95// … truncated