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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 | /* eslint-disable react/no-unknown-property -- react-three-fiber extends JSX with three.js props */ import { Suspense, useRef, useEffect, useMemo } from "react"; import { useFrame } from "@react-three/fiber"; import { Html, useGLTF } from "@react-three/drei"; import * as THREE from "three"; import { computePath, type GridPoint } from "./pathfinding"; import { computeSeparation } from "./separation"; import { characterModel } from "./assetMap"; import { GltfErrorBoundary } from "./GltfErrorBoundary"; import { hairColor, trousersColor, shirtColorFor } from "./appearance"; import type { AgentState } from "../../shared/types"; interface CharacterProps { agent: AgentState; /** * World-space position where the character starts (its slot at the * current zone). Captured once at mount; subsequent agent-patch * re-renders must not snap the character back here. */ slotStart: [number, number, number]; /** World-space slot the character is walking toward. */ slotTarget: [number, number, number]; walkable: boolean[][]; gridSize: number; /** * Shared map of current world-space positions keyed by agent id. The * parent owns the map; every `Character` writes its own position here on * each frame and reads siblings to apply separation steering. Using a ref * instead of React state lets us update hot data every frame without * triggering re-renders. */ positionsRef: React.MutableRefObject<Map<string, THREE.Vector3>>; /** * Readable label rendered above the character's head (e.g. "Mayor" or * "Agent 3"). Computed in the parent scene because the index depends on * sibling agents. Decoupling keeps this component stateless about * naming. */ displayName: string; } // Characters walk at 8 u/s so a full cross-ring traversal (~26 units across // the current 13-radius zone ring) completes in about 3 seconds, well before // the next typical tool event lands and redirects them to a new zone. const SPEED = 8; const SEPARATION_RADIUS = 0.8; const SEPARATION_STRENGTH = 3; const SEPARATION_MAX_STEP_PER_SECOND = 2; export function Character({ agent, slotStart, slotTarget, walkable, gridSize, positionsRef, displayName }: CharacterProps) { const groupRef = useRef<THREE.Group>(null); const pathRef = useRef<GridPoint[]>([]); const pathIndex = useRef(0); // `initialWorld` must be captured exactly once per mounted character. The // store emits a patch on every tool event, which gives `agent` a new object // identity and caused the previous implementation to re-render the `<group // position={...}>` prop back to the current-zone coordinates every time - // effectively snapping the character back to the Tavern mid-walk. Storing // the mount position in a ref decouples it from re-render cycles; from then // on, `useFrame` is the sole owner of the group's transform. const initialWorldRef = useRef<[number, number, number]>(slotStart); // VillageScene recomputes the slot tuple on every render, so the tuple // identity changes even when the target zone hasn't changed. Use a // stringified snapshot as the useEffect dependency so path recomputation // only fires when the coordinates actually change. const targetX = slotTarget[0]; const targetY = slotTarget[1]; const targetZ = slotTarget[2]; useEffect(() => { const g = groupRef.current; if (!g) return; const currentGrid = worldToGrid(g.position, gridSize); const targetGrid = worldToGrid(new THREE.Vector3(targetX, targetY, targetZ), gridSize); pathRef.current = computePath(currentGrid, targetGrid, walkable); pathIndex.current = 0; }, [agent.targetZone, gridSize, walkable, targetX, targetY, targetZ]); // Register/unregister our live position in the shared map so siblings can // read it for separation. We reuse a single `Vector3` per agent for the // lifetime of the mount and mutate it in place each frame. useEffect(() => { const g = groupRef.current; if (!g) return; const positions = positionsRef.current; positions.set(agent.id, g.position); const agentId = agent.id; return (): void => { positions.delete(agentId); }; }, [agent.id, positionsRef]); useFrame((_, dt) => { const g = groupRef.current; if (!g) return; // 1. Advance along the A* path toward the next grid cell, if any. const path = pathRef.current; if (pathIndex.current < path.length) { const next = path[pathIndex.current]; if (next) { const nextWorld = gridToWorld(next, gridSize); const dir = new THREE.Vector3(nextWorld[0] - g.position.x, 0, nextWorld[2] - g.position.z); const dist = dir.length(); if (dist < 0.05) { pathIndex.current++; } else { dir.normalize().multiplyScalar(SPEED * dt); g.position.add(dir); g.lookAt(nextWorld[0], g.position.y, nextWorld[2]); } } } // 2. Collision avoidance: push away from any neighbour closer than // SEPARATION_RADIUS. Runs every frame regardless of path state so // stationary agents still separate if another walks into them. const neighbours: { x: number; z: number }[] = []; positionsRef.current.forEach((pos, id) => { if (id !== agent.id) neighbours.push({ x: pos.x, z: pos.z }); }); if (neighbours.length > 0) { const step = computeSeparation({ x: g.position.x, z: g.position.z }, neighbours, { radius: SEPARATION_RADIUS, strength: SEPARATION_STRENGTH * dt, maxStep: SEPARATION_MAX_STEP_PER_SECOND * dt }); g.position.x += step.x; g.position.z += step.z; } // 3. Idle bob. Keep last so separation never fights vertical motion. g.position.y = 1 + Math.abs(Math.sin(performance.now() * 0.01)) * 0.1; }); const initialWorld = initialWorldRef.current; const translucent = agent.animation === "ghost"; const opacity = translucent ? 0.4 : 1; const lastAction = agent.recentActions[agent.recentActions.length - 1]; const hair = hairColor(agent.id); const trousers = trousersColor(agent.id); // Mayor always wears a fixed near-white shirt so it reads as the "main" // agent at a glance; subagents keep their hashed per-id colour. const shirt = shirtColorFor(agent); const fallback = ( <FallbackCharacter skinColor={shirt} hairColor={hair} trousersColor={trousers} translucent={translucent} opacity={opacity} /> ); return ( <group ref={groupRef} position={[initialWorld[0], 1, initialWorld[2]]} userData={{ tooltipKind: "character", agentId: agent.id, agentKind: agent.kind }} > <GltfErrorBoundary label={`character:${agent.kind}`} fallback={fallback}> <Suspense fallback={fallback}> <CharacterMesh kind={agent.kind} skinColor={shirt} hairColor={hair} trousersColor={trousers} translucent={translucent} opacity={opacity} /> </Suspense> </GltfErrorBoundary> {/* The drei `<Html>` wrapper appends a DOM div (position:absolute) to the canvas's parent. Its default `pointer-events` is `auto`, so if the label sits over the scene the browser routes pointer events to the label instead of the canvas - which means the `TooltipLayer` canvas pointermove handler never fires and the tooltip silently stops working. Force the wrapper AND the inner label to `pointer-events: none` so pointer events always fall through to the canvas. The label is purely decorative (tooltip shows the same info on hover) so no interactivity is lost. */} <Html position={[0, 2.2, 0]} center zIndexRange={[100, 0]} style={{ pointerEvents: "none" }}> <div data-testid="agent-label" data-agent-kind={agent.kind} data-agent-id={agent.id} style={{ fontSize: 16, fontWeight: 600, background: "rgba(0,0,0,0.75)", color: "#fff", padding: "3px 8px", borderRadius: 6, whiteSpace: "nowrap", pointerEvents: "none", textShadow: "0 1px 2px rgba(0,0,0,0.5)" }} > {displayName} </div> </Html> {lastAction && ( // Wrapper is `pointer-events: none` so bubble's bounding box does // not swallow tooltip raycasts in the canvas beneath. The inner // bubble div opts back in to `auto` so its own `onClick` and // `cursor: pointer` still work. <Html position={[0, 2.8, 0]} center zIndexRange={[100, 0]} style={{ pointerEvents: "none" }} > <div onClick={(e) => { e.stopPropagation(); window.dispatchEvent( new CustomEvent("village:open-bubble", { detail: { agentId: agent.id } }) ); }} title={lastAction.summary} style={{ cursor: "pointer", pointerEvents: "auto", fontSize: 14, background: "rgba(255,255,255,0.95)", color: "#111", padding: "3px 8px", borderRadius: 10, maxWidth: 260, whiteSpace: "nowrap", overflow: "hidden", textOverflow: "ellipsis", boxShadow: "0 2px 4px rgba(0,0,0,0.25)" }} > {truncate(lastAction.summary, 60)} </div> </Html> )} {agent.waitingForInput === true && ( <WaitingIndicator translucent={translucent} opacity={opacity} /> )} </group> ); } /** * 3D yellow exclamation mark rendered above an agent that is waiting for * input (from the user for the mayor, from the orchestrator for a subagent). * Sits at local y ~3.1 so it floats above the name label (y=2.2) and the * speech bubble (y=2.8) without clashing. A gentle per-frame bob plus a * subtle scale pulse makes it easy to spot without looking frantic. */ function WaitingIndicator({ translucent, opacity }: { translucent: boolean; opacity: number }) { const groupRef = useRef<THREE.Group>(null); useFrame(({ clock }) => { const g = groupRef.current; if (!g) return; const t = clock.getElapsedTime(); // Bob between ~3.05 and ~3.25 so the indicator draws the eye without // drifting far from the character. g.position.y = 3.15 + Math.sin(t * 2.5) * 0.1; const pulse = 1 + Math.sin(t * 2) * 0.05; g.scale.setScalar(pulse); }); return ( <group ref={groupRef} position={[0, 3.15, 0]}> {/* Vertical bar of the "!" */} <mesh position={[0, 0.18, 0]}> <boxGeometry args={[0.18, 0.6, 0.18]} /> <meshStandardMaterial color="#ffcc00" emissive="#ff9900" emissiveIntensity={0.4} transparent={translucent} opacity={opacity} /> </mesh> {/* Dot under the bar. Small gap so the "!" reads as two pieces. */} <mesh position={[0, -0.28, 0]}> <sphereGeometry args={[0.11, 16, 16]} /> <meshStandardMaterial color="#ffcc00" emissive="#ff9900" emissiveIntensity={0.4} transparent={translucent} opacity={opacity} /> </mesh> </group> ); } /** * Loads the per-kind GLB character model and applies the agent's hashed skin * colour + ghost transparency to every mesh in the cloned subtree. Only * the mesh named "body" receives the per-agent colour; head / hat retain * their authored material so skin tone stays consistent across agents. */ function CharacterMesh({ kind, skinColor, hairColor, trousersColor, translucent, opacity }: { kind: "main" | "subagent"; skinColor: string; hairColor: string; trousersColor: string; translucent: boolean; opacity: number; }) { const url = characterModel(kind === "main" ? "mayor" : "villager"); const gltf = useGLTF(url) as unknown as { scene: THREE.Group }; const cloned = useMemo(() => { const root = gltf.scene.clone(true); // The GLTF round-trip moves the original mesh name ("body", "head", // "hat") onto the wrapping Object3D node; the actual Mesh child ends // up unnamed. Checking `mesh.name === "body"` therefore never matches // and every subagent's body falls through to the GLB-authored white, // which is why "all agents looked white". Walk the parent chain to // find an ancestor name, and tint when either the mesh OR an // ancestor is the body. const isBodyMesh = (mesh: THREE.Object3D): boolean => { let o: THREE.Object3D | null = mesh; while (o) { if (o.name === "body") return true; o = o.parent; } return false; }; root.traverse((node: THREE.Object3D) => { const mesh = node as THREE.Mesh; if (!mesh.isMesh) return; const tintBody = isBodyMesh(mesh); const src = mesh.material as THREE.Material | THREE.Material[]; const cloneOne = (m: THREE.Material): THREE.Material => { const std = (m as THREE.MeshStandardMaterial).clone(); std.transparent = translucent; std.opacity = opacity; if (tintBody && "color" in std) { (std as THREE.MeshStandardMaterial).color = new THREE.Color(skinColor); } return std; }; mesh.material = Array.isArray(src) ? src.map(cloneOne) : cloneOne(src); }); return root; }, [gltf, skinColor, translucent, opacity]); // The placeholder GLB models the character as body + head (head at y=1.25, // size 0.5, body centred at y=0.5, size 0.6 x 1.0 x 0.4). Layer the face, // hair, and arms as separate meshes on top of the loaded scene so the GLB // generator can stay minimal and a future Kenney GLB swap (which already // carries its own face/hair/arms) needs no code change here. return ( <> <primitive object={cloned} /> <CharacterDecorations headY={1.25} headSize={0.5} bodyY={0.5} bodyHeight={1.0} bodyWidth={0.6} skinColor={skinColor} hairColor={hairColor} translucent={translucent} opacity={opacity} /> {/* The GLB body bottom sits at local y=0 (centered at y=0.5, height 1.0). Dropping legs down from that seam grounds the feet near the zone floor at the neutral bob position. Matches the Tier 1 proportions so both tiers look consistent during GLB load / retry. */} <CharacterLegs bodyBottomY={0} trousersColor={trousersColor} translucent={translucent} opacity={opacity} /> </> ); } /** * Tier 1 two-box character plus Minecraft-style face, hair, arms, and legs. * Used as Suspense fallback and as the hard error fallback when a GLB cannot * be loaded. * * Geometry summary (all local to the parent group; the group sits at world * y=1 and bobs up to y=1.1, so a foot bottom at local y=-1.0 grounds the * character on the zone floor at the neutral bob position): * head: 0.5 x 0.5 x 0.5 centred at y=1.2, top=1.45 * torso: 0.6 x 0.8 x 0.4 centred at y=0.4, bottom=0.0, top=0.8 * legs: 0.25 x 1.0 x 0.3 centred at y=-0.5, bottom=-1.0, top=0.0 * arms: 0.18 x 1.0 x 0.18 hanging from the shoulders (shoulder y=0.8) */ function FallbackCharacter({ skinColor, hairColor, trousersColor, translucent, opacity }: { skinColor: string; hairColor: string; trousersColor: string; translucent: boolean; opacity: number; }) { return ( <> {/* Torso: shortened from 1.6 to 0.8 tall and lifted to sit on top of the new legs. Bottom = 0, top = 0.8 which matches the old shoulder line so the head geometry stays in place. */} <mesh position={[0, 0.4, 0]}> <boxGeometry args={[0.6, 0.8, 0.4]} /> <meshStandardMaterial color={skinColor} transparent={translucent} opacity={opacity} /> </mesh> <mesh position={[0, 1.2, 0]}> <boxGeometry args={[0.5, 0.5, 0.5]} /> <meshStandardMaterial color="#f3c89a" transparent={translucent} opacity={opacity} /> </mesh> <CharacterDecorations headY={1.2} headSize={0.5} bodyY={0.4} bodyHeight={0.8} bodyWidth={0.6} skinColor={skinColor} hairColor={hairColor} translucent={translucent} opacity={opacity} /> <CharacterLegs bodyBottomY={0} trousersColor={trousersColor} translucent={translucent} opacity={opacity} /> </> ); } /** * Minecraft-style face (two eyes + mouth), hair slab with fringe, and two * rigid arms. Shared between `FallbackCharacter` (Tier 1 boxes) and * `CharacterMesh` (Tier 2 placeholder GLB) because the two models use the * same proportions. Measurements are passed in so each caller can anchor * the decorations to its own head / body geometry. * * The parent `<group>` handles `lookAt` so +Z is always "forward" relative * to the character's walk direction; placing eyes / mouth / fringe on the * +Z side of the head keeps them pointing where the character is looking. */ function CharacterDecorations({ headY, headSize, bodyY, bodyHeight, bodyWidth, skinColor, hairColor, translucent, opacity }: { headY: number; headSize: number; bodyY: number; bodyHeight: number; bodyWidth: number; skinColor: string; hairColor: string; translucent: boolean; opacity: number; }) { const headHalf = headSize / 2; // Nudge face elements slightly off the head's front face so the z-buffer // never ties. 0.002 is invisible at any realistic camera distance but big // enough to beat floating-point rounding during projection. const faceZ = headHalf + 0.002; const eyeY = headY + 0.05; // just above the vertical centre of the head const eyeDx = 0.11; // horizontal half-separation const mouthY = headY - 0.12; // Hair slab sits on top of the head, slightly wider + deeper so it reads // as a hat of hair from every angle. const hairSlabY = headY + headHalf + 0.04; // Fringe is a thin strip on the upper front of the head, giving the // character a visible Minecraft-style bang line from the front. const fringeY = headY + headHalf - 0.12; const fringeZ = headHalf + 0.01; // Arms hang from the shoulders. Body top = bodyY + bodyHeight/2; the arm // is 1.0 tall so its centre sits halfway down from the shoulder. const shoulderY = bodyY + bodyHeight / 2; const armHeight = 1.0; const armCentreY = shoulderY - armHeight / 2 + 0.05; // small overlap with torso const armWidth = 0.18; const armDepth = 0.18; const armDx = bodyWidth / 2 + armWidth / 2 - 0.02; // hug the torso sides return ( <> {/* Left eye */} <mesh position={[-eyeDx, eyeY, faceZ]}> <boxGeometry args={[0.08, 0.08, 0.01]} /> <meshStandardMaterial color="#1c1c1c" transparent={translucent} opacity={opacity} /> </mesh> {/* Right eye */} <mesh position={[eyeDx, eyeY, faceZ]}> <boxGeometry args={[0.08, 0.08, 0.01]} /> <meshStandardMaterial color="#1c1c1c" transparent={translucent} opacity={opacity} /> </mesh> {/* Mouth */} <mesh position={[0, mouthY, faceZ]}> <boxGeometry args={[0.18, 0.04, 0.01]} /> <meshStandardMaterial color="#1c1c1c" transparent={translucent} opacity={opacity} /> </mesh> {/* Hair slab */} <mesh position={[0, hairSlabY, 0]}> <boxGeometry args={[headSize + 0.02, 0.08, headSize + 0.02]} /> <meshStandardMaterial color={hairColor} transparent={translucent} opacity={opacity} /> </mesh> {/* Fringe (bangs) */} <mesh position={[0, fringeY, fringeZ]}> <boxGeometry args={[headSize + 0.02, 0.18, 0.04]} /> <meshStandardMaterial color={hairColor} transparent={translucent} opacity={opacity} /> </mesh> {/* Left arm */} <mesh position={[-armDx, armCentreY, 0]}> <boxGeometry args={[armWidth, armHeight, armDepth]} /> <meshStandardMaterial color={skinColor} transparent={translucent} opacity={opacity} /> </mesh> {/* Right arm */} <mesh position={[armDx, armCentreY, 0]}> <boxGeometry args={[armWidth, armHeight, armDepth]} /> <meshStandardMaterial color={skinColor} transparent={translucent} opacity={opacity} /> </mesh> </> ); } /** * Two rigid legs hanging below the torso. Shared between `FallbackCharacter` * and `CharacterMesh` so both tiers stand on the ground instead of floating. * * Geometry (local to the parent group): * each leg: 0.25 x 1.0 x 0.3 * top: at `bodyBottomY` (flush with torso bottom) * bottom: at `bodyBottomY - 1.0` * * With the parent group at world y=1.0 (neutral bob) and `bodyBottomY=0` * for both tiers, the foot bottom lands at world y=0 - the zone floor. */ function CharacterLegs({ bodyBottomY, trousersColor, translucent, opacity }: { bodyBottomY: number; trousersColor: string; translucent: boolean; opacity: number; }) { const legHeight = 1.0; const legWidth = 0.25; const legDepth = 0.3; // Leg centre sits half a leg-length below the torso bottom. const legCentreY = bodyBottomY - legHeight / 2; // Small gap between the two legs so they read as distinct voxel columns. const legGap = 0.04; const legDx = legWidth / 2 + legGap / 2; return ( <> {/* Left leg */} <mesh position={[-legDx, legCentreY, 0]}> <boxGeometry args={[legWidth, legHeight, legDepth]} /> <meshStandardMaterial color={trousersColor} transparent={translucent} opacity={opacity} /> </mesh> {/* Right leg */} <mesh position={[legDx, legCentreY, 0]}> <boxGeometry args={[legWidth, legHeight, legDepth]} /> <meshStandardMaterial color={trousersColor} transparent={translucent} opacity={opacity} /> </mesh> </> ); } function truncate(s: string, n: number): string { return s.length > n ? s.slice(0, n - 1) + "…" : s; } function worldToGrid(v: { x: number; z: number }, size: number): GridPoint { return { x: Math.round(v.x + size / 2), z: Math.round(v.z + size / 2) }; } function gridToWorld(p: GridPoint, size: number): [number, number, number] { return [p.x - size / 2, 0, p.z - size / 2]; } |