8 new verbs (table now 115): find_model (DISTINCT ids, not ranked duplicates),
find_palette (matched set from one pack), model, kits, cast, road_network,
town, dungeon. game.find was ALREADY TAKEN by entity-by-tag lookup — the
duplicate-name test caught the clash before it shipped, and find_model/
find_palette now match the agent TOOL names, so the model's knowledge
transfers between the tool it calls and the verb it writes.
Verbs run synchronously (search and layout are pure CPU); only GLB load and
draw need a host, so placements queue through the same mechanism as audio and
particles — which also means a scene composes headlessly with no renderer
attached. Tiles carry their own collider from the kit pitch, so scripted props
are as solid as hand-placed ones.
THE MOST IMPORTANT EDIT WAS A DELETION. splashgame.md said "Everything is
procedural... No image, model, or audio files" — the doc was actively telling
the model it had no models, which is why generated games were bare primitives
while 4,442 models sat unused. Replaced with an instruction to reach for the
library before game.box, three rules (never place result #1 five times; one art
pack per region; generate layouts rather than hand-placing) and a wrong-vs-
right example. A test asserts that claim cannot come back.
Two bugs found by probing the REAL library rather than reasoning:
- town() would have placed ZERO buildings, silently: it selects
TileRole::Building, but every role-less model mapped to Prop — and
city-kit-suburban is 40 whole buildings with no parsed roles. A role-less
model is genuinely ambiguous (a building on a lot, or a cone at a kerb), so
kit_from_index now takes a KitUse hint. Against the real library: 104
buildings, 136 road tiles, 0 adjacency errors
- the index folds crossroads and T-junctions into one `junction` role, but a
4-way cell needs four open edges; a T standing in for a crossroad leaves a
road stub pointing at nothing. Disambiguated by name
village.splash is the scenery counterpart to racing.splash: a town, a wood of
four different conifers, a dungeon, a playable character — and not one model id
written by hand.
NOT BOUND, and why: game.tree/rock/blob and game.scatter generate MESHES, and
set_models takes an asset id, not geometry — there is no mesh-upload path for
generated meshes yet, so binding them would have meant faking it. Additive once
a generated-mesh queue exists.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The thesis proof: examples/gamemaker/resources/fixtures/racing.splash is a
complete playable racing game in 72 lines (12-corner oval from a waypoint
loop, 4 cars, gates, standings, restart) with no physics, no AI and no lap
bookkeeping in script. Blocks run engine-side at 60Hz: Blocks::pre_step
(intent -> motion) before step_world, post_step after; Blocks is Clone and
snapshots beside GameWorld so a failed eval rolls both back together.
- game.car (4 suspension raycasts on a box3d rigid chassis), game.character
(drives the existing mover sweep + owns idle/walk/run blending),
game.plane; game.drive/autodrive/speed
- Brains: game.wander/chase/patrol/caught — the fixture's hand-rolled AI,
absorbed engine-side
- Race kit: spawnpoint, checkpoint, place, race, standings, lap/rank/
finished, score/score_of (Shared-tier data, ready for replication)
raycast_vehicle audit (defects documented in car.rs, still live in xr):
libm sin/cos in steering (unreplicable), a wrong side-impulse denominator
(iaj.dot(iaj) where it should be (I^-1 aJ).aJ), and an unguarded division.
Kept the structure, replaced Bullet's friction solver with an arcade force
model: suspension acts at the contact point, grip and drive through the
centre of mass, steering as yaw torque — no lateral force can generate
roll, so it is stable by construction rather than by roll_influence fudge.
Engine bug fixed at the source: GameWorld::new() left rng at 0 and
xorshift64* is a fixed point at zero, so rand() returned 0 forever for any
world built through the sim API. reset_content seeds on every eval, which
hid it from gamemaker entirely; found by a wander brain that never left home.
Tape probe byte-identical; racing fixture evals clean and drives (AI follow
the line, gates bank in order).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
