Reintroduce apps/arcade and the ten game crates that were ripped out of
the fork (assets, audio, blocks, coedit, gen, net, pkg, render, script,
session), from makepad-internal/dev. Reconcile against the fork's layout:
- makepad-game-sim/math come from the fork's existing libs/sim + sim/math;
the copied internal libs/game/{sim,math} are dropped and the kept game
crates plus arcade point at ../../sim and ../../sim/math.
- arcade AI is rewritten off the removed makepad-ai agent API onto the
makepad-ai-hub headless ChatProvider worker (example/cad pattern):
AiWorker{send,cancel,poll}, ai_worker_loop driving
ClaudeApiChatProvider(ClaudeCli), AiWorkerEvent availability/delta/
done/error mapped into the chat feed and authoring land_edit, with
main.rs send_message/cancel_request/event-drain rebuilt around it.
- the game-script sandbox is adapted to the fork's jailed splash storage:
every isolate gets mod.fs = splash_storage jail; splaes splash_storage
set_root_for_heap is now public so the ScriptHost (or Splash) can grant
a per-game jail root. ENT font: build.rs/dispatch.rs entities fill new
fork sim Entity/Part fields via ..Default::default(); world_raycast now
borrows mutably and returns the material id.
cargo check -p makepad-arcade and the game + arcade test suites pass.
Point the workspace at libs/asset and libs/render. Drop Arcade
frontend, gamemaker, rig, pack registry, physics, and the old
libs/game gameplay crates. Those live in the private sandbox repo.
A room of devices now plays one game: host simulates, clients send input
and render replicated truth.
- libs/game/sim/player.rs: Players roster on GameWorld, slot 0 is always
this device. Player 0's input stays in the world's original held/pressed/
pad/cam_yaw fields and is mirrored into the roster, which is what keeps
single-player numerics bit-identical (tape gate confirms). Ids are never
reused, so a stale reference resolves to None, never to somebody else
- The camera-movement knot resolved: world.player_move(p) rotates that
player's axes by THEIR cam_yaw, carried in their input packet. Player 0's
branch is the original expression character-for-character (the f32 cos
widened to f64 kept deliberately — tidying it would move the numbers)
- libs/game/session/replication.rs: Shared = pos/vel/size/kind/tag;
Derived = facing/anim/scale/glow/blob shadows, recomputed client-side and
costing zero wire bytes; Local = camera/audio/effects. Statics never enter
the per-tick stream
- Protocol (additive, version unchanged): EntityDesc + Descriptors message
splits rare reliable construction data from volatile unreliable state —
without it a joiner sees poses for entities it cannot build. EntityDesc
carries pos because statics never appear in the state stream (the
late-joiner test caught ground arriving at the origin)
- Script: game.players/player_name/player_entity/player_input/bot/on_join/
on_leave; blocks gained owner: PlayerId so a car reads its own driver
- Arcade: ARCADE_HOST=1 / ARCADE_JOIN=<addr>; clients skip world
construction and don't simulate
- Racing wire volume, 6 players x 60Hz x 200 entities: 2400 pps,
20.9 Mbit/s up (audit projected 74 Mbit for the XR stack). Asserted in
racing_scenario_wire_volume_fits_a_living_room
Two more not-a-playable-default bugs, same class as M1b's rng-at-zero:
Entity::default() leaves gravity_scale 0 (weightless wheels) and ground
without friction gives no traction — only the DSL path filled these in.
255 tests green; tape probe BYTE_IDENTICAL; xr/arcade/gamemaker build.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
