Files
noname-shuying/mengsan/state.js
T
2026-08-11 15:59:31 +08:00

228 lines
8.0 KiB
JavaScript

import config from "./config.js";
const hashText = text => {
let value = 2166136261;
for (let index = 0; index < text.length; index++) {
value ^= text.charCodeAt(index);
value = Math.imul(value, 16777619);
}
return value >>> 0;
};
export const nextRandom = run => {
let value = Number(run.randomState || run.seed || Date.now()) >>> 0;
value += 0x6d2b79f5;
run.randomState = value >>> 0;
let result = value;
result = Math.imul(result ^ result >>> 15, result | 1);
result ^= result + Math.imul(result ^ result >>> 7, result | 61);
return ((result ^ result >>> 14) >>> 0) / 4294967296;
};
export const randomGet = (run, list) => list[Math.floor(nextRandom(run) * list.length)];
const weightedType = (run, weights) => {
const entries = Object.entries(weights);
const total = entries.reduce((sum, entry) => sum + entry[1], 0);
let cursor = nextRandom(run) * total;
for (const [type, weight] of entries) {
cursor -= weight;
if (cursor <= 0) return type;
}
return entries[0][0];
};
const connectFloors = (run, edges, currentFloor, nextFloor) => {
const addEdge = (source, target) => {
if (!edges.some(edge => edge[0] == source.id && edge[1] == target.id)) {
edges.push([source.id, target.id]);
}
};
currentFloor.forEach(source => {
const targets = nextFloor.slice().sort((left, right) => {
const distance = Math.abs(left.routeIndex - source.routeIndex) - Math.abs(right.routeIndex - source.routeIndex);
return distance || left.routeIndex - right.routeIndex;
});
addEdge(source, targets[0]);
if (targets.length > 1 && Math.abs(targets[1].routeIndex - source.routeIndex) <= 1 && nextRandom(run) < 0.45) {
addEdge(source, targets[1]);
}
});
nextFloor.forEach(target => {
if (!edges.some(edge => edge[1] == target.id)) {
const source = currentFloor.slice().sort((left, right) => {
const distance = Math.abs(left.routeIndex - target.routeIndex) - Math.abs(right.routeIndex - target.routeIndex);
return distance || left.routeIndex - right.routeIndex;
})[0];
addEdge(source, target);
}
});
};
const getFloorRoutes = (run, act, floor, lastFloor) => {
const routeCount = Math.max(1, config.routeCount);
if (floor == 0 || floor == lastFloor) return [(routeCount - 1) / 2];
const maximum = Math.max(1, Math.min(routeCount, act.floorNodes[floor] || routeCount));
const configuredMinimum = act.minFloorNodes?.[floor] ?? Math.max(2, maximum - 1);
const minimum = Math.max(1, Math.min(maximum, configuredMinimum));
const count = minimum + Math.floor(nextRandom(run) * (maximum - minimum + 1));
const routes = Array.from({ length: routeCount }, (_, index) => index);
for (let index = routes.length - 1; index > 0; index--) {
const target = Math.floor(nextRandom(run) * (index + 1));
[routes[index], routes[target]] = [routes[target], routes[index]];
}
return routes.slice(0, count).sort((left, right) => left - right);
};
export const generateActMap = (run, actIndex) => {
const act = config.acts[actIndex];
const nodes = [];
const edges = [];
const floors = [];
const lastFloor = act.floorNodes.length - 1;
act.floorNodes.forEach((count, floor) => {
const floorNodes = [];
const routes = getFloorRoutes(run, act, floor, lastFloor);
routes.forEach((routeIndex, index) => {
let type;
if (floor == lastFloor) type = "boss";
else if (floor == 0) type = "battle";
else type = weightedType(run, act.nodeWeights);
const id = `${act.id}_f${floor}_n${index}_${Math.floor(nextRandom(run) * 1e6)}`;
const node = {
id,
floor,
type,
routeIndex,
x: Math.round((routeIndex + 1) * 100 / (config.routeCount + 1)),
y: Math.round(90 - floor * 80 / Math.max(1, lastFloor)),
completed: false,
};
nodes.push(node);
floorNodes.push(node);
});
floors.push(floorNodes);
});
for (let floor = 0; floor < floors.length - 1; floor++) {
connectFloors(run, edges, floors[floor], floors[floor + 1]);
}
return {
layoutVersion: config.mapLayoutVersion,
routeCount: config.routeCount,
actIndex,
actId: act.id,
nodes,
edges,
currentNodeId: null,
completedNodeIds: [],
};
};
const createDeck = () => config.startingDeck.map((entry, index) => ({
id: `mengsan_card_${Date.now()}_${index}`,
suit: entry[0],
number: entry[1],
name: entry[2],
nature: entry[3] || null,
affixes: entry[4] ? entry[4].slice() : [],
upgrade: 0,
}));
export const createRun = character => {
const seed = (Date.now() ^ Math.floor(Math.random() * 0x7fffffff)) >>> 0;
const run = {
schemaVersion: config.schemaVersion,
runId: `mengsan_${Date.now()}`,
seed,
randomState: seed,
status: "running",
revision: 0,
actIndex: 0,
player: {
id: "player_1",
ownerId: "local",
character,
hp: null,
maxHp: null,
gold: 0,
deck: createDeck(),
permanentSkills: [],
temporarySkills: [],
items: [],
handLimitBonus: 0,
},
statistics: {
completedNodes: 0,
defeatedEnemies: 0,
goldEarned: 0,
},
};
run.map = generateActMap(run, 0);
return run;
};
export const getSelectableNodes = run => {
const map = run.map;
if (!map.currentNodeId) {
return map.nodes.filter(node => node.floor == 0 && !node.completed);
}
const ids = map.edges.filter(edge => edge[0] == map.currentNodeId).map(edge => edge[1]);
return map.nodes.filter(node => ids.includes(node.id) && !node.completed);
};
export const completeNode = (run, nodeId) => {
const node = run.map.nodes.find(current => current.id == nodeId);
if (!node || node.completed) return false;
node.completed = true;
run.map.currentNodeId = node.id;
run.map.completedNodeIds.push(node.id);
run.statistics.completedNodes++;
run.revision++;
return true;
};
export const insertStoryNode = (run, sourceId) => {
const map = run.map;
const source = map.nodes.find(node => node.id == sourceId);
const edgeIndex = map.edges.findIndex(edge => edge[0] == sourceId);
if (!source || edgeIndex < 0) return null;
const oldEdge = map.edges[edgeIndex];
const target = map.nodes.find(node => node.id == oldEdge[1]);
if (!target) return null;
const node = {
id: `story_${hashText(`${run.runId}_${sourceId}_${run.revision}`)}`,
floor: source.floor + 0.45,
type: "story",
x: Math.max(8, Math.min(92, Math.round((source.x + target.x) / 2 + (nextRandom(run) - 0.5) * 16))),
y: Math.round((source.y + target.y) / 2),
completed: false,
dynamic: true,
};
map.edges.splice(edgeIndex, 1, [source.id, node.id], [node.id, target.id]);
map.nodes.push(node);
return node;
};
export const enterNextAct = run => {
run.actIndex++;
if (run.actIndex >= config.acts.length) {
run.status = "completed";
return false;
}
run.map = generateActMap(run, run.actIndex);
run.revision++;
return true;
};
export const getNodeEncounter = (run, node) => {
const act = config.acts[run.actIndex];
let pool = act.enemies;
if (node.type == "elite" || node.type == "story") pool = act.eliteEnemies?.length ? act.eliteEnemies : act.enemies;
if (node.type == "boss") return { enemy: act.boss, gold: act.baseGold * 3, boss: true };
return {
enemy: randomGet(run, pool.filter(Boolean)),
gold: node.type == "elite" || node.type == "story" ? act.baseGold * 2 : act.baseGold,
boss: false,
};
};