Initial commit

client/src/state/gameState.ts

@@ -0,0 +1,149 @@
+export const GRID_SIZE = 40;
+export const HEARING_RADIUS = 15;
+export const MOVE_COOLDOWN_MS = 100;
+
+export type ItemType = 'radio_station' | 'dice';
+
+export type WorldItem = {
+  id: string;
+  type: ItemType;
+  title: string;
+  x: number;
+  y: number;
+  createdBy: string;
+  createdAt: number;
+  updatedAt: number;
+  version: number;
+  capabilities: string[];
+  useSound?: string;
+  params: Record<string, unknown>;
+  carrierId?: string | null;
+};
+
+export type SelectionContext = 'pickup' | 'drop' | 'delete' | 'edit' | 'use' | null;
+
+export type GameMode =
+  | 'normal'
+  | 'nickname'
+  | 'chat'
+  | 'listUsers'
+  | 'listItems'
+  | 'addItem'
+  | 'selectItem'
+  | 'itemProperties'
+  | 'itemPropertyEdit';
+
+export type Player = {
+  id: string | null;
+  nickname: string;
+  x: number;
+  y: number;
+  lastMoveTime: number;
+};
+
+export type PeerState = {
+  id: string;
+  nickname: string;
+  x: number;
+  y: number;
+};
+
+export type GameState = {
+  running: boolean;
+  mode: GameMode;
+  keysPressed: Record<string, boolean>;
+  nicknameInput: string;
+  cursorPos: number;
+  cursorVisible: boolean;
+  sortedPeerIds: string[];
+  listIndex: number;
+  sortedItemIds: string[];
+  itemListIndex: number;
+  selectedItemIds: string[];
+  selectionContext: SelectionContext;
+  selectedItemIndex: number;
+  selectedItemId: string | null;
+  itemPropertyKeys: string[];
+  itemPropertyIndex: number;
+  editingPropertyKey: string | null;
+  addItemTypeIndex: number;
+  isMuted: boolean;
+  player: Player;
+  peers: Map<string, PeerState>;
+  items: Map<string, WorldItem>;
+  carriedItemId: string | null;
+};
+
+export function createInitialState(): GameState {
+  return {
+    running: false,
+    mode: 'normal',
+    keysPressed: {},
+    nicknameInput: '',
+    cursorPos: 0,
+    cursorVisible: true,
+    sortedPeerIds: [],
+    listIndex: 0,
+    sortedItemIds: [],
+    itemListIndex: 0,
+    selectedItemIds: [],
+    selectionContext: null,
+    selectedItemIndex: 0,
+    selectedItemId: null,
+    itemPropertyKeys: [],
+    itemPropertyIndex: 0,
+    editingPropertyKey: null,
+    addItemTypeIndex: 0,
+    isMuted: false,
+    player: {
+      id: null,
+      nickname: 'anon',
+      x: 20,
+      y: 20,
+      lastMoveTime: 0,
+    },
+    peers: new Map(),
+    items: new Map(),
+    carriedItemId: null,
+  };
+}
+
+export function getNearestPeer(state: GameState): { peerId: string | null; distance: number } {
+  let nearest: string | null = null;
+  let minDist = Infinity;
+  for (const [id, peer] of state.peers.entries()) {
+    const dist = Math.hypot(peer.x - state.player.x, peer.y - state.player.y);
+    if (dist < minDist) {
+      minDist = dist;
+      nearest = id;
+    }
+  }
+  return { peerId: nearest, distance: minDist };
+}
+
+export function getDirection(px: number, py: number, tx: number, ty: number): string {
+  const dx = tx - px;
+  const dy = ty - py;
+  if (dx === 0 && dy === 0) return 'here';
+  let vDir = '';
+  let hDir = '';
+  if (dy > 0) vDir = 'north';
+  if (dy < 0) vDir = 'south';
+  if (dx > 0) hDir = 'east';
+  if (dx < 0) hDir = 'west';
+  return `${vDir} ${hDir}`.trim();
+}
+
+export function getNearestItem(state: GameState): { itemId: string | null; distance: number } {
+  let nearest: string | null = null;
+  let minDist = Infinity;
+  for (const [id, item] of state.items.entries()) {
+    if (item.carrierId) continue;
+    const dist = Math.hypot(item.x - state.player.x, item.y - state.player.y);
+    if (dist < minDist) {
+      minDist = dist;
+      nearest = id;
+    }
+  }
+  return { itemId: nearest, distance: minDist };
+}