design a simple platformer game
Rejected by the operator: second version playable
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Brief
The canvas displays a side-scrolling environment containing a controllable character and a series of stacked platforms. The viewer controls the character's horizontal and vertical movement using directional keys, allowing the character to run and jump. Gravity is simulated, causing the character to fall unless they successfully jump onto a designated platform. The goal is to navigate the character through the environment by controlling jumps and maintaining momentum.
Artist's statement · qwen3-coder:30b-a3b-q4_K_M, unedited
This sketch presents a simple side-scrolling platformer environment where a red square character can be controlled with arrow keys. The character moves horizontally and can jump using the up arrow key. Gravity pulls the character downward, and collision detection ensures the character stands on platforms. The implementation simulates basic physics including gravity and jumping mechanics, allowing for movement through a series of stacked platforms. The scene remains static unless input is provided, fulfilling the no-motion requirement when idle.
The executor's own account of what it built, kept verbatim. A claim about the work, not a finding about it.
Judgment
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Source
| Repository | https://github.com/profcarroll/sketchgen-gallery/tree/main/e/107 |
|---|---|
| Raw sketch | sketch/sketch.js |
| Raw page | sketch/index.html |
| Attempts | 2 |
| Licence | CC BY 4.0 |
| Attribution | “design a simple platformer game” — sketchgen entry 107, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the control rules file. https://profcarroll.github.io/sketchgen-gallery/e/107/ Licensed CC BY 4.0. |
Lineage · the root of a line 4 generations deep
Click a frame to run that sketch in place; one at a time. The whole line from entry 107.
Provenance
| Entry | 107 |
|---|---|
| Job | 108 |
| State | rejected |
| Prompt | design a simple platformer game |
| Brief | The canvas displays a side-scrolling environment containing a controllable character and a series of stacked platforms. The viewer controls the character's horizontal and vertical movement using directional keys, allowing the character to run and jump. Gravity is simulated, causing the character to fall unless they successfully jump onto a designated platform. The goal is to navigate the character through the environment by controlling jumps and maintaining momentum. |
| Statement | This sketch presents a simple side-scrolling platformer environment where a red square character can be controlled with arrow keys. The character moves horizontally and can jump using the up arrow key. Gravity pulls the character downward, and collision detection ensures the character stands on platforms. The implementation simulates basic physics including gravity and jumping mechanics, allowing for movement through a series of stacked platforms. The scene remains static unless input is provided, fulfilling the no-motion requirement when idle. |
| Submitted by | profcarroll |
| Planner | gemma4:e4b · prompt planner-v1 |
| Executor | qwen3-coder:30b-a3b-q4_K_M · prompt executor-v1 |
| Rules file | control |
| Assertions | no_motion |
| Gate | attempt 1: gate exit 1 — no_motion fail attempt 2: gate exit 0 — no_motion pass |
| Attempts | 2 |
| Prompt tokens | 2449 |
| Completion tokens | 1600 |
| Wall seconds | 111.732 |
| Node shape | VM.Standard.A1.Flex 16/94 |
| Seed | 1 |
| Lineage | parent — · children 110 · generation 1 · critique by — |
| Source | repository · sketch.js · index.html · attempts attempt-1, attempt-2 |
| Created (UTC) | 2026-09-14T19:53:24Z |
| Published (UTC) | 2026-09-15T17:22:33Z |
| Publish commit | 3f24e065f87908005b8a9c0d3ba4e5262855b784 |
| Licence | CC BY 4.0 |
| Attribution | “design a simple platformer game” — sketchgen entry 107, prompted by profcarroll, written by qwen3-coder:30b-a3b-q4_K_M under the control rules file. https://profcarroll.github.io/sketchgen-gallery/e/107/ Licensed CC BY 4.0. |
| Last error | second version playable |
The same fields, machine-readable, in meta.json.