Space Invaders · gpt-6.1-sol
Output generated Cost / run $0.2129 Runtime 317.7s
Prompt for this run
Build a playable Space Invaders game on a canvas: a player cannon that moves and shoots, a descending grid of aliens that advance and fire back, destructible bunkers, score, and lives. Procedural graphics only, no external assets.
TAKE IT TO CODE
A single self-contained HTML file — copy it and open in any browser, or reuse the prompt with your own pi-agent run.
RUN
METRICS
Transcript · 35 messages
Build a playable Space Invaders game on a canvas: a player cannon that moves and shoots, a descending grid of aliens that advance and fire back, destructible bunkers, score, and lives. Procedural graphics only, no external assets.
thinking
**Designing game layout** I'm figuring out the app design with a width of 1040. I want a clean header with a logo and an orange accent for the text. The layout will involve a game top HUD, integrated with a separate DOM and a centralized overlay. I need to ensure the initial layout doesn’t obstruct everything, possibly featuring a central card titled "EARTH NEEDS YOU." It should occupy specific dimensions and allow aliens to be visible at the top. I'm contemplating a gradient dark screen and a decorative mission bar at the bottom.
I’ll build a complete, arcade-style game with pixel-drawn aliens, destructible shields, keyboard controls, and touch controls—all in one self-contained `index.html`.
/tmp/job-aLV7S6/index.html (19434 bytes)Successfully wrote to /tmp/job-aLV7S6/index.html
{"action":"reload","x":0,"y":0,"toX":0,"toY":0,"text":"","delta":0}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"ORBITAL ARCADE\nLOCAL SECTOR / 001\nSPACE INVADERS\n\nOne cannon. Three lives. A planet worth defending.\n\nSOUND OFF\nPAUSE\nSCORE\n00000\nPERSONAL BEST\n00000\nWAVE\n01\nLIVES\nINCOMING TRANSMISSION\nEARTH NEEDS YOU.\n\nThe invasion is here. Hold your ground.\n\nSTART MISSION ↗\nPRESS ENTER TO DEPLOY\nSYSTEM READY\nSECTOR 07 / 55 HOSTILES\nDEFEND THE LINE\n←\n→\nMove\nSPACE\nFire\nP\nPause\nSTAY MOBILE. MAKE EVERY SHOT COUNT.\nEST. 1978 · REBUILT FOR THE NEXT GENERATION\nNO COINS REQUIRED","images":"attached"}
thinking
**Adjusting CSS for aspect ratio** I'm working on adjusting the CSS width and making sure the aspect ratio overrides the auto height based on the natural settings. I want the render map to stretch appropriately while making some tweaks to the canvas and padding. I'm trying to avoid overlap issues with elements like the title, body, and buttons. Aligning the overlay and ensuring margins are set right is critical. It sounds like the current screenshot looks fine, but I need to run some tests to finalize everything.
{"action":"click","x":593,"y":609,"toX":0,"toY":0,"text":"","delta":0}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"ORBITAL ARCADE\nLOCAL SECTOR / 001\nSPACE INVADERS\n\nOne cannon. Three lives. A planet worth defending.\n\nSOUND OFF\nPAUSE\nSCORE\n00000\nPERSONAL BEST\n00000\nWAVE\n01\nLIVES\nMISSION ACTIVE\nSECTOR 07 / 55 HOSTILES\nDEFEND THE LINE\n←\n→\nMove\nSPACE\nFire\nP\nPause\nSTAY MOBILE. MAKE EVERY SHOT COUNT.\nEST. 1978 · REBUILT FOR THE NEXT GENERATION\nNO COINS REQUIRED","images":"attached"}
thinking
{"action":"key","x":0,"y":0,"toX":0,"toY":0,"text":"Space","delta":0}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"ORBITAL ARCADE\nLOCAL SECTOR / 001\nSPACE INVADERS\n\nOne cannon. Three lives. A planet worth defending.\n\nSOUND OFF\nPAUSE\nSCORE\n00000\nPERSONAL BEST\n00000\nWAVE\n01\nLIVES\nMISSION ACTIVE\nSECTOR 07 / 55 HOSTILES\nDEFEND THE LINE\n←\n→\nMove\nSPACE\nFire\nP\nPause\nSTAY MOBILE. MAKE EVERY SHOT COUNT.\nEST. 1978 · REBUILT FOR THE NEXT GENERATION\nNO COINS REQUIRED","images":"attached"}
thinking
**Considering automated testing** I have some time, but I shouldn’t overthink things. There's a concern that if the event key goes down and up before raf, it may not generate the shot in Space. If the browser keys are held for 80ms, it's likely that the shot won’t get fired after 1 second. I need to ensure that automated testing is in place. I might consider using bash with Node and Playwright if it’s installed.
{"command":"ls -la; node -e \"try { console.log(require.resolve('playwright')) } catch(e) { console.log('no playwright') }\"","timeout":10}total 32 drwx------ 3 node node 4096 Oct 5 00:43 . drwxrwxrwt 8 root root 4096 Oct 5 00:43 .. drwxr-xr-x 4 node node 4096 Oct 5 00:43 .home -rw-r--r-- 1 node node 19453 Oct 5 00:43 index.html no playwright
thinking
**Calculating dimensions** I'm working on establishing the dimensions for the components. So far, I've got a header at 24 pixels, a title at 108, and I need to ensure everything adds up correctly. This includes the game bar and footer, which bring the total to 797 with some extra padding added in. Next, I’ll set the maximum width and adjust the canvas ratio for the footer. I just want to make sure everything flows nicely without any unexpected issues!
{"path":"/tmp/job-aLV7S6/index.html","edits":[{"oldText":".app{max-width:1080px;margin:auto;padding:30px 28px 20px}","newText":".app{max-widSuccessfully replaced 3 block(s) in /tmp/job-aLV7S6/index.html.
{"action":"reload","x":0,"y":0,"toX":0,"toY":0,"text":"","delta":0}Frame 1, +1ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"ORBITAL ARCADE\nLOCAL SECTOR / 001\nSPACE INVADERS\n\nOne cannon. Three lives. A planet worth defending.\n\nSOUND OFF\nPAUSE\nSCORE\n00000\nPERSONAL BEST\n00000\nWAVE\n01\nLIVES\nINCOMING TRANSMISSION\nEARTH NEEDS YOU.\n\nThe invasion is here. Hold your ground.\n\nSTART MISSION ↗\nPRESS ENTER TO DEPLOY\nSYSTEM READY\nSECTOR 07 / 55 HOSTILES\nDEFEND THE LINE\n←\n→\nMove\nSPACE\nFire\nP\nPause\nSTAY MOBILE. MAKE EVERY SHOT COUNT.\nEST. 1978 · REBUILT FOR THE NEXT GENERATION\nNO COINS REQUIRED","images":"attached"}
thinking
{"action":"key","x":0,"y":0,"toX":0,"toY":0,"text":"Enter","delta":0}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"ORBITAL ARCADE\nLOCAL SECTOR / 001\nSPACE INVADERS\n\nOne cannon. Three lives. A planet worth defending.\n\nSOUND OFF\nPAUSE\nSCORE\n00000\nPERSONAL BEST\n00000\nWAVE\n01\nLIVES\nMISSION ACTIVE\nSECTOR 07 / 55 HOSTILES\nDEFEND THE LINE\n←\n→\nMove\nSPACE\nFire\nP\nPause\nSTAY MOBILE. MAKE EVERY SHOT COUNT.\nEST. 1978 · REBUILT FOR THE NEXT GENERATION\nNO COINS REQUIRED","images":"attached"}
{"action":"key","x":0,"y":0,"toX":0,"toY":0,"text":"ArrowRight","delta":0}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"ORBITAL ARCADE\nLOCAL SECTOR / 001\nSPACE INVADERS\n\nOne cannon. Three lives. A planet worth defending.\n\nSOUND OFF\nPAUSE\nSCORE\n00000\nPERSONAL BEST\n00000\nWAVE\n01\nLIVES\nMISSION ACTIVE\nSECTOR 07 / 55 HOSTILES\nDEFEND THE LINE\n←\n→\nMove\nSPACE\nFire\nP\nPause\nSTAY MOBILE. MAKE EVERY SHOT COUNT.\nEST. 1978 · REBUILT FOR THE NEXT GENERATION\nNO COINS REQUIRED","images":"attached"}
thinking
The game is built. I’m checking movement, shooting, shield damage, scoring, and pause/resume, and tightening the layout so the full arcade interface fits on screen.
{"command":"node <<'NODE'\nconst fs=require('fs'),vm=require('vm'),assert=require('assert');\nconst html=fs.readFileSync('index.html','utf8'PASS: movement, shooting, destructible bunkers, pause/resume, scoring, alien removal, lives, game over, restart, next wave.
thinking
{"action":"click","x":1054,"y":128,"toX":0,"toY":0,"text":"","delta":0}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"ORBITAL ARCADE\nLOCAL SECTOR / 001\nSPACE INVADERS\n\nOne cannon. Three lives. A planet worth defending.\n\nSOUND OFF\nRESUME\nSCORE\n00000\nPERSONAL BEST\n00000\nWAVE\n01\nLIVES\nTRANSMISSION PAUSED\nHOLDING POSITION.\n\nTake a breath. The planet can wait.\n\nRESUME MISSION ↗\nPRESS P TO RESUME\nMISSION PAUSED\nSECTOR 07 / 55 HOSTILES\nDEFEND THE LINE\n←\n→\nMove\nSPACE\nFire\nP\nPause\nSTAY MOBILE. MAKE EVERY SHOT COUNT.\nEST. 1978 · REBUILT FOR THE NEXT GENERATION\nNO COINS REQUIRED","images":"attached"}
thinking
**Enhancing readability and gameplay** I need to improve the readability a bit, possibly by adding a slight polish. Things like strong black text shadows around the panels could help, but no card is needed. I might consider using a radial gradient for the background to enhance text visibility, as the #090f16cc background looks a bit dull without padding. The gameplay level could feel challenging with a slow start—aliens move to the center and then descend slowly. Overall, though, the classic gameplay feels fine. I need to address the pause animation and some key issues too.**Refining shooting mechanics** I need to implement a shoot function triggered on keydown to ensure reliable firing. This will require updating calls and avoiding duplication. The shoot function will use states for playing, cooldown, and transitions, then set the cooldown tone. I’ll call shoot when the Space key is pressed, making sure it happens before the key updates. Also, I should test movement in the browser to prevent potential nudging. If the game state is paused, the elapsed time shouldn't increment; otherwise, I should ensure the particles animate properly.
{"path":"/tmp/job-aLV7S6/index.html","edits":[{"oldText":"function update(dt){elapsed+=dt;","newText":"function shoot(){if(state==='playing'Successfully replaced 3 block(s) in /tmp/job-aLV7S6/index.html.
{"action":"reload","x":0,"y":0,"toX":0,"toY":0,"text":"","delta":0}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"ORBITAL ARCADE\nLOCAL SECTOR / 001\nSPACE INVADERS\n\nOne cannon. Three lives. A planet worth defending.\n\nSOUND OFF\nPAUSE\nSCORE\n00000\nPERSONAL BEST\n00000\nWAVE\n01\nLIVES\nINCOMING TRANSMISSION\nEARTH NEEDS YOU.\n\nThe invasion is here. Hold your ground.\n\nSTART MISSION ↗\nPRESS ENTER TO DEPLOY\nSYSTEM READY\nSECTOR 07 / 55 HOSTILES\nDEFEND THE LINE\n←\n→\nMove\nSPACE\nFire\nP\nPause\nSTAY MOBILE. MAKE EVERY SHOT COUNT.\nEST. 1978 · REBUILT FOR THE NEXT GENERATION\nNO COINS REQUIRED","images":"attached"}
thinking
{"action":"key","x":0,"y":0,"toX":0,"toY":0,"text":"Enter","delta":0}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"ORBITAL ARCADE\nLOCAL SECTOR / 001\nSPACE INVADERS\n\nOne cannon. Three lives. A planet worth defending.\n\nSOUND OFF\nPAUSE\nSCORE\n00000\nPERSONAL BEST\n00000\nWAVE\n01\nLIVES\nMISSION ACTIVE\nSECTOR 07 / 55 HOSTILES\nDEFEND THE LINE\n←\n→\nMove\nSPACE\nFire\nP\nPause\nSTAY MOBILE. MAKE EVERY SHOT COUNT.\nEST. 1978 · REBUILT FOR THE NEXT GENERATION\nNO COINS REQUIRED","images":"attached"}
{"action":"key","x":0,"y":0,"toX":0,"toY":0,"text":"Space","delta":0}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"ORBITAL ARCADE\nLOCAL SECTOR / 001\nSPACE INVADERS\n\nOne cannon. Three lives. A planet worth defending.\n\nSOUND OFF\nPAUSE\nSCORE\n00000\nPERSONAL BEST\n00000\nWAVE\n01\nLIVES\nMISSION ACTIVE\nSECTOR 07 / 55 HOSTILES\nDEFEND THE LINE\n←\n→\nMove\nSPACE\nFire\nP\nPause\nSTAY MOBILE. MAKE EVERY SHOT COUNT.\nEST. 1978 · REBUILT FOR THE NEXT GENERATION\nNO COINS REQUIRED","images":"attached"}
{"action":"motion","x":0,"y":0,"toX":0,"toY":0,"text":"","delta":0}Frame 1, +0ms
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Frame 2, +557ms
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Frame 3, +1106ms
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Frame 4, +1660ms
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{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"ORBITAL ARCADE\nLOCAL SECTOR / 001\nSPACE INVADERS\n\nOne cannon. Three lives. A planet worth defending.\n\nSOUND OFF\nPAUSE\nSCORE\n00010\nPERSONAL BEST\n00010\nWAVE\n01\nLIVES\nMISSION ACTIVE\nSECTOR 07 / 54 HOSTILES\nDEFEND THE LINE\n←\n→\nMove\nSPACE\nFire\nP\nPause\nSTAY MOBILE. MAKE EVERY SHOT COUNT.\nEST. 1978 · REBUILT FOR THE NEXT GENERATION\nNO COINS REQUIRED","images":"attached"}
Created `index.html` — a complete, self-contained Space Invaders game. - **Move:** ← / → or A / D - **Shoot:** Space - **Pause/resume:** P - **Start/retry:** Enter Includes descending aliens, enemy fire, destructible bunkers, score, three lives, escalating waves, saved personal best, optional synthesized sound, and touch controls. Tested gameplay and browser rendering; no external assets or network requests.