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| Merge the workspace shell: navigation and phone shell, g1t as orchestrator, agents in roles with audience-checked reads, reactions and custom emoji, live notifications and browser push, the homepage tour (agents 0002, chat 0002) | 1 | /** |
| 2 | * An agent's face: a little creature drawn from its `avatar_seed`, in the | |
| 3 | * 5×7 pixel style of the g1t logo. The same seed always gives the same | |
| 4 | * creature: symmetric, in one colour from a palette that reads on the dark | |
| 5 | * base, and sometimes with eyes. Pure, so it is tested on its own. | |
| 6 | */ | |
| 7 | ||
| 8 | /** Colours that sit well on --g1t-bg, each with a darker shade for its ground. */ | |
| 9 | export const CREATURE_COLOURS: { fg: string; ground: string }[] = [ | |
| 10 | { fg: "#b6a8ff", ground: "#221e38" }, // lavender | |
| 11 | { fg: "#86efc4", ground: "#10302a" }, // mint | |
| 12 | { fg: "#ffbd8c", ground: "#35241a" }, // peach | |
| 13 | { fg: "#8ab4ff", ground: "#18233a" }, // sky | |
| 14 | { fg: "#ff9ecf", ground: "#36192a" }, // pink | |
| 15 | { fg: "#f2dc72", ground: "#302a12" }, // lemon | |
| 16 | { fg: "#7fe3e0", ground: "#112f30" }, // teal | |
| 17 | { fg: "#ff8f85", ground: "#381a19" }, // coral | |
| 18 | ]; | |
| 19 | ||
| 20 | export const COLUMNS = 5; | |
| 21 | export const ROWS = 7; | |
| 22 | ||
| 23 | /** A cell: empty, body, or an eye. */ | |
| 24 | export type Cell = 0 | 1 | 2; | |
| 25 | ||
| 26 | export type Creature = { cells: Cell[][]; colour: { fg: string; ground: string } }; | |
| 27 | ||
| 28 | /** FNV-1a, 32 bits: the seed as a number. */ | |
| 29 | function hash(text: string): number { | |
| 30 | let h = 0x811c9dc5; | |
| 31 | for (let i = 0; i < text.length; i++) { | |
| 32 | h ^= text.charCodeAt(i); | |
| 33 | h = Math.imul(h, 0x01000193); | |
| 34 | } | |
| 35 | return h >>> 0; | |
| 36 | } | |
| 37 | ||
| 38 | /** mulberry32: a small, good-enough generator from one number. */ | |
| 39 | function generator(seed: number): () => number { | |
| 40 | let a = seed; | |
| 41 | return () => { | |
| 42 | a = (a + 0x6d2b79f5) | 0; | |
| 43 | let t = Math.imul(a ^ (a >>> 15), 1 | a); | |
| 44 | t = (t + Math.imul(t ^ (t >>> 7), 61 | t)) ^ t; | |
| 45 | return ((t ^ (t >>> 14)) >>> 0) / 4294967296; | |
| 46 | }; | |
| 47 | } | |
| 48 | ||
| 49 | /** The creature for a seed: the left three columns chosen, mirrored to five. */ | |
| 50 | export function creature(seed: string): Creature { | |
| 51 | const random = generator(hash(seed || "agent")); | |
| 52 | // The first draws of a generator from near seeds sit close together: | |
| 53 | // spent, and the colour taken from a hash of its own. | |
| 54 | for (let i = 0; i < 4; i++) random(); | |
| 55 | const colour = CREATURE_COLOURS[(hash(`colour:${seed}`) >>> 11) % CREATURE_COLOURS.length]!; | |
| 56 | const cells: Cell[][] = Array.from({ length: ROWS }, () => Array<Cell>(COLUMNS).fill(0)); | |
| 57 | for (let row = 0; row < ROWS; row++) { | |
| 58 | for (let column = 0; column < 3; column++) { | |
| 59 | // Fuller towards the middle, so it reads as a body, not noise. | |
| 60 | const density = column === 2 ? 0.78 : column === 1 ? 0.6 : 0.42; | |
| 61 | const filled: Cell = random() < density ? 1 : 0; | |
| 62 | cells[row]![column] = filled; | |
| 63 | cells[row]![COLUMNS - 1 - column] = filled; | |
| 64 | } | |
| 65 | } | |
| 66 | // A spine down the middle from the second row to the second last, so it holds together. | |
| 67 | for (let row = 1; row < ROWS - 1; row++) cells[row]![2] = 1; | |
| 68 | // Eyes, more often than not: a pair on the second or third row, in a filled face. | |
| 69 | if (random() < 0.7) { | |
| 70 | const row = random() < 0.5 ? 2 : 3; | |
| 71 | for (const column of [1, 3]) cells[row]![column] = 2; | |
| 72 | for (const column of [0, 1, 2, 3, 4]) if (cells[row]![column] === 0 && column !== 0 && column !== 4) cells[row]![column] = 1; | |
| 73 | // A brow above the eyes keeps them from floating off the top. | |
| 74 | if (row === 2) for (const column of [1, 2, 3]) cells[1]![column] = 1; | |
| 75 | } | |
| 76 | return { cells, colour }; | |
| 77 | } |
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