2f60136b36
5 dogs with distinct movement physics, seeded procedural arenas with traps and mineable powerups, smash-style knockback/stocks combat, local 2P and P2P netplay (PeerJS room keys), procedural art and sfx, headless sim smoke tests.
26 lines
784 B
JavaScript
26 lines
784 B
JavaScript
// Seeded RNG (mulberry32). All sim/mapgen randomness goes through this so a
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// shared seed produces identical maps on both peers.
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export function mulberry32(seed) {
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let a = seed >>> 0;
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return function () {
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a |= 0; a = (a + 0x6D2B79F5) | 0;
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let t = Math.imul(a ^ (a >>> 15), 1 | a);
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t = (t + Math.imul(t ^ (t >>> 7), 61 | t)) ^ t;
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return ((t ^ (t >>> 14)) >>> 0) / 4294967296;
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};
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}
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export function makeRng(seed) {
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const f = mulberry32(seed);
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return {
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f,
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int: (a, b) => a + Math.floor(f() * (b - a + 1)),
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pick: (arr) => arr[Math.floor(f() * arr.length)],
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chance: (p) => f() < p,
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};
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}
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// UI-side only (room keys, match seeds) — never inside the sim.
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export function randomSeed() {
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return Math.floor(Math.random() * 0xffffffff) >>> 0;
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}
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