sketchgen

a self-critiquing, self-generating synthetic p5.js gallery running self-hosted models unless marked otherwise

create a simple snowboarding game with no audio. use arrow keys to navigate snowboarder down the course, spacebar to jump, other keys perform tricks. hitting the sidewall of the course causes damage. game over after damage hit 100%

Revise: the same snowboarding course through which a snowboarder navigates, and this time the snowboarder recoils visibly when hitting the sidewall. gemma4 · generation 1

Prompt by profcarroll. Planned by gemma4:e4b, written by qwen3-coder:30b-a3b-q4_K_M.

seed 1 · entry 497 · published

— views · — likes

Brief

The canvas displays a side-scrolling snowboard course with visible, rigid sidewalls. The viewer controls a snowboarder using directional arrow keys to guide them down the course, and the spacebar allows them to jump. Pressing other keys initiates various tricks. Movement is fluid, and when the snowboarder collides with a sidewall, they visibly recoil, causing damage that is tracked and displayed. The game continues until the damage indicator reaches full capacity, triggering the end state.

Artist's statement · qwen3-coder:30b-a3b-q4_K_M, unedited

This sketch creates an interactive snowboarding game where players control a character through a procedurally generated course filled with rigid sidewalls. The player uses arrow keys to move and jump, with the spacebar initiating jumps. The snowboarder experiences physics-based movement including gravity and momentum, while collisions with walls cause visible recoil and damage accumulation. As damage increases, the player's health bar fills until it reaches capacity, ending the game. The camera follows the snowboarder as they navigate the course, creating a dynamic side-scrolling experience. The visual design emphasizes clear feedback through color changes during impacts and a simple geometric aesthetic that works within the performance constraints of the environment.

The executor's own account of what it built, kept verbatim. A claim about the work, not a finding about it.

Judgment

agents: look 1313th of 1439 (0.29 over 20 pairs) · brief 898th of 1439 (0.78 over 20 pairs)
agents: neither→ rather look at it · ↑ closer to its brief

Humans

no pairs yet

A Bradley–Terry score needs pairs; none has been judged.

Agents

0.29 over 20 pairs

closer to its brief: 0.78 over 20 pairs

Bradley–Terry over this population's pairs alone. 1.00 is the virtual reference every entry is tied against once, so few pairs pull a score toward it: read the ordering before the margin. Views and likes are engagement, not judgment, and are not in this number.

Judge it against another

Two populations, two scores, never one aggregate.

Source

Repositoryhttps://github.com/profcarroll/sketchgen-gallery/tree/main/e/497
Raw sketchsketch/sketch.js
Raw pagesketch/index.html
Attempts2
LicenceCC BY 4.0
Attribution“create a simple snowboarding game with no audio. use arrow keys to na…” — sketchgen entry 497, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the treatment rules file. https://profcarroll.github.io/sketchgen-gallery/e/497/ Licensed CC BY 4.0.
Scan to open this entry on a phone · https://profcarroll.github.io/sketchgen-gallery/e/497/

Lineage · generation 1 of 2 in the line from entry 56

  1. create a simple snowboarding game with no audio. use arrow keys to navigate snowboarder down the course, spacebar to jump, other keys perform tricks. hitting the sidewall of the course causes damage.

    entry 56 · root · profcarroll

  2. Revise: the same snowboarding course through which a snowboarder navigates, and this time the snowboarder recoils visibly when hitting the sidewall.

    entry 497 · generation 1 · gemma4


After this entry: 1 child

Children: entry 603.

Click a frame to run that sketch in place; one at a time. The whole line from entry 56.

Provenance

Entry497
Job498
Statepublished
Promptcreate a simple snowboarding game with no audio. use arrow keys to navigate snowboarder down the course, spacebar to jump, other keys perform tricks. hitting the sidewall of the course causes damage. game over after damage hit 100% Revise: the same snowboarding course through which a snowboarder navigates, and this time the snowboarder recoils visibly when hitting the sidewall.
BriefThe canvas displays a side-scrolling snowboard course with visible, rigid sidewalls. The viewer controls a snowboarder using directional arrow keys to guide them down the course, and the spacebar allows them to jump. Pressing other keys initiates various tricks. Movement is fluid, and when the snowboarder collides with a sidewall, they visibly recoil, causing damage that is tracked and displayed. The game continues until the damage indicator reaches full capacity, triggering the end state.
StatementThis sketch creates an interactive snowboarding game where players control a character through a procedurally generated course filled with rigid sidewalls. The player uses arrow keys to move and jump, with the spacebar initiating jumps. The snowboarder experiences physics-based movement including gravity and momentum, while collisions with walls cause visible recoil and damage accumulation. As damage increases, the player's health bar fills until it reaches capacity, ending the game. The camera follows the snowboarder as they navigate the course, creating a dynamic side-scrolling experience. The visual design emphasizes clear feedback through color changes during impacts and a simple geometric aesthetic that works within the performance constraints of the environment.
Submitted byprofcarroll
Plannergemma4:e4b · prompt planner-v1
Executorqwen3-coder:30b-a3b-q4_K_M · prompt executor-v2
Rules filetreatment
Assertionsmotion(idle)
Gateattempt 1: gate exit 1 — motion(idle) fail
attempt 2: gate exit 0 — motion(idle) pass
Attempts2
Prompt tokens4668
Completion tokens2666
Wall seconds208.977
Node shapeVM.Standard.A1.Flex 16/94
Seed1
Lineageparent 56 · children 603 · generation 1 · critique by gemma4:e4b
Sourcerepository · sketch.js · index.html · attempts attempt-1, attempt-2
Created (UTC)2026-09-16T16:03:12Z
Published (UTC)2026-09-16T17:21:45Z
Publish commit7c6ed5012e8405090081ec52bbe89917d5e0c8eb
LicenceCC BY 4.0
Attribution“create a simple snowboarding game with no audio. use arrow keys to na…” — sketchgen entry 497, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the treatment rules file. https://profcarroll.github.io/sketchgen-gallery/e/497/ Licensed CC BY 4.0.

The same fields, machine-readable, in meta.json.