Animated loader · glm-4.7-flash
Output generated Cost / run $0.0091 Runtime 138.8s
Prompt for this run
Build a looping loading animation using the provided GSAP library. Use HTML, CSS, and JavaScript as needed. Write it to `index.html` in the current working directory using your file tools. Inline your own CSS and JavaScript. Do not use external assets, CDNs, or network requests. Use the provided `gsap.min.js` (global `gsap`) through a plain local script tag; the runner will inline it into the final artifact. Required behavior: - On a dark background, show a group of rounded geometric shapes that smoothly change scale, position, and corner radius, plus a row of five dots with staggered motion or opacity. - Coordinate both elements using a GSAP timeline with smooth easing. The full sequence lasts 3 to 6 seconds and repeats without an abrupt jump or a growing number of animation instances. - Provide Pause/Resume and Restart controls. Pause freezes the current timeline position; Resume continues from it; Restart returns to the beginning. - Center the composition and keep it visible at the supplied viewport. Use HTML/CSS or inline SVG; no external assets or paid GSAP plugins are available. - Choose the palette and detailed choreography freely. No backend loading operation is required. Verify: Sample the timeline at several moments to inspect shape changes, staggered dot motion, and smooth transitions. Pause and resume to check that animation continues from the paused state, then use Restart and check the starting composition.
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 · 47 messages
Build a looping loading animation using the provided GSAP library. Use HTML, CSS, and JavaScript as needed. Write it to `index.html` in the current working directory using your file tools. Inline your own CSS and JavaScript. Do not use external assets, CDNs, or network requests. Use the provided `gsap.min.js` (global `gsap`) through a plain local script tag; the runner will inline it into the final artifact. Required behavior: - On a dark background, show a group of rounded geometric shapes that smoothly change scale, position, and corner radius, plus a row of five dots with staggered motion or opacity. - Coordinate both elements using a GSAP timeline with smooth easing. The full sequence lasts 3 to 6 seconds and repeats without an abrupt jump or a growing number of animation instances. - Provide Pause/Resume and Restart controls. Pause freezes the current timeline position; Resume continues from it; Restart returns to the beginning. - Center the composition and keep it visible at the supplied viewport. Use HTML/CSS or inline SVG; no external assets or paid GSAP plugins are available. - Choose the palette and detailed choreography freely. No backend loading operation is required. Verify: Sample the timeline at several moments to inspect shape changes, staggered dot motion, and smooth transitions. Pause and resume to check that animation continues from the paused state, then use Restart and check the starting composition.
{"command":"ls /tmp/job-r81UGC"}gsap.min.js
/tmp/job-r81UGC/index.html (5814 bytes)Successfully wrote to /tmp/job-r81UGC/index.html
{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Pause\nRestart","images":"model does not support images"}
{"action":"inspect"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Pause\nRestart","images":"model does not support images"}
thinking
The DOM text isn't returned fully. Let me use screenshot or check via bash? The browser tool just gives text output. Let me verify with motion frames and screenshot. Since I can't see images, I'll rely on console/DOM. Let me sample the timeline programmatically — but the browser tool only allows click/type/key etc. I could add a temporary debug script? Better: verify via motion capture which shows frames, but I can't see images ("model does not support images").
Alternative: I can test behavior by driving through the browser tool using clicks and motion, but sampling timeline state requires JS access. Maybe I can use browser "key" to run? No. Instead, I could temporarily add a self-test script that logs timeline states to console, then read console output. Console output is visible. Let me add a temporary verification snippet that pauses at various times and logs computed styles, then remove it.
Actually simpler: write a small test in the page temporarily via edit — add script that at load logs tl.duration, and samples positions at times. But timeline runs on its own. I can call tl.pause() at certain times... To sample deterministically: tl.progress(0), read, tl.progress(0.25), etc. That changes animation, but fine for testing; then restart.
Let me temporarily append a test script.I can't view screenshots, so I'll verify by sampling the timeline state programmatically via console logs with a temporary test snippet.
{"path":"/tmp/job-r81UGC/index.html","edits":[{"oldText":" document.getElementById(\"restartBtn\").addEventListener(\"click\", () => {\n Successfully replaced 1 block(s) in /tmp/job-r81UGC/index.html.
{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: DURATION= 5.1","log: t=0.00 x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined","log: dots: y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00","log: t=0.51 x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined","log: dots: y=-12 op=0.35 sc=1.00 | y=-4 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00","log: t=1.27 x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined","log: dots: y=0 op=0.35 sc=1.00 | y=-1 op=0.35 sc=1.00 | y=-4 op=0.35 sc=1.00 | y=-8 op=0.35 sc=1.00 | y=-16 op=0.35 sc=1.00","log: t=2.04 x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined","log: dots: y=-11 op=0.35 sc=1.00 | y=-2 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00","log: t=2.81 x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined","log: dots: y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=-3 op=0.35 sc=1.00 | y=-11 op=0.35 sc=1.00 | y=-16 op=0.35 sc=1.00","log: t=3.57 x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined","log: dots: y=0 op=0.44 sc=1.07 | y=0 op=0.99 sc=1.50 | y=0 op=1.00 sc=1.50 | y=0 op=0.99 sc=1.50 | y=0 op=0.44 sc=1.07","log: t=4.33 x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined","log: dots: y=0 op=0.35 sc=1.00 | y=0 op=0.43 sc=1.06 | y=0 op=0.99 sc=1.49 | y=0 op=0.43 sc=1.06 | y=0 op=0.35 sc=1.00","log: t=5.10 x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined","log: dots: y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00","log: resume-continues: false","log: restart-start: x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined | x=NaN y=NaN sc=NaN br=undefined","log: instances: 12"],"dom":"Pause\nRestart","images":"model does not support images"}
thinking
Issues: 1. gsap.getProperty(s) — getting all properties returns object; maybe returns object with "x" etc. NaN means my usage is wrong. gsap.getProperty(target) with no property returns an object of transforms? Actually gsap.getProperty(target, "x") returns number. Without property it returns... maybe undefined keys. Let me fix snap to query individual props. borderRadius isn't in gsap props by default unless animated — gsap.getProperty(el, "borderRadius") should work if it's tracked? For CSS props, use gsap.getProperty(el, "borderRadius", "px")? Actually getComputedStyle is fine. 2. "resume-continues: false" — because tl.resume() then tl.pause(0.6*dur) — pause with position param seeks, so mid1 vs snap at 0.6 differ... wait false means equal. Hmm, snap was NaN everywhere due to bug, so both NaN strings equal. Likely fixed by fixing snap. Also dots at 0.6 (t=3.06) would differ. Fine. 3. Also note t=0.51 dot 1 y=-12... dots animate fine. 4. instances: 12 — globalTimeline children; that includes tl + tweens inside? Fine, no growth. Fix snap using individual getProperty calls.
The shape snapshot function is buggy (`getProperty` needs property names). Let me fix the test snippet:
{"edits":[{"newText":" const snap = () => shapes.map(s => {\n const x = Math.round(+gsap.getProperty(s, \"x\"));\n const y = Math.rouSuccessfully replaced 1 block(s) in /tmp/job-r81UGC/index.html.
{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: DURATION= 5.1","log: t=0.00 x=0 y=0 sc=1.00 br=24px | x=0 y=0 sc=1.00 br=24px | x=0 y=0 sc=1.00 br=24px | x=0 y=0 sc=1.00 br=24px","log: dots: y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00","log: t=0.51 x=0 y=-71 sc=0.59 br=47.9992% | x=116 y=0 sc=0.74 br=9px | x=0 y=82 sc=0.53 br=51.1525% | x=-100 y=0 sc=0.77 br=11px","log: dots: y=-12 op=0.35 sc=1.00 | y=-4 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00","log: t=1.27 x=0 y=-78 sc=0.55 br=50% | x=110 y=0 sc=0.75 br=10px | x=0 y=78 sc=0.55 br=50% | x=-110 y=0 sc=0.75 br=11.908%","log: dots: y=0 op=0.35 sc=1.00 | y=-1 op=0.35 sc=1.00 | y=-4 op=0.35 sc=1.00 | y=-8 op=0.35 sc=1.00 | y=-16 op=0.35 sc=1.00","log: t=2.04 x=-122 y=-1 sc=0.70 br=50% | x=-26 y=0 sc=0.70 br=46.3261% | x=37 y=8 sc=0.69 br=50% | x=121 y=0 sc=0.70 br=49.7218%","log: dots: y=-11 op=0.35 sc=1.00 | y=-2 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00","log: t=2.81 x=-123 y=0 sc=0.70 br=40.5332px | x=-41 y=0 sc=0.73 br=22.3828px | x=41 y=0 sc=0.73 br=22.3828px | x=123 y=0 sc=0.70 br=40.5332px","log: dots: y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=-3 op=0.35 sc=1.00 | y=-11 op=0.35 sc=1.00 | y=-16 op=0.35 sc=1.00","log: t=3.57 x=-123 y=0 sc=0.74 br=17.9729px | x=-41 y=0 sc=0.75 br=14px | x=41 y=0 sc=0.75 br=14px | x=123 y=0 sc=0.74 br=18px","log: dots: y=0 op=0.44 sc=1.07 | y=0 op=0.99 sc=1.50 | y=0 op=1.00 sc=1.50 | y=0 op=0.99 sc=1.50 | y=0 op=0.44 sc=1.07","log: t=4.33 x=-19 y=0 sc=0.99 br=42px | x=-3 y=0 sc=0.89 br=42px | x=1 y=0 sc=1.04 br=41px | x=1 y=0 sc=0.90 br=42px","log: dots: y=0 op=0.35 sc=1.00 | y=0 op=0.43 sc=1.06 | y=0 op=0.99 sc=1.49 | y=0 op=0.43 sc=1.06 | y=0 op=0.35 sc=1.00","log: t=5.10 x=0 y=0 sc=1.00 br=24px | x=0 y=0 sc=1.00 br=24px | x=0 y=0 sc=1.00 br=24px | x=0 y=0 sc=1.00 br=24px","log: dots: y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00 | y=0 op=0.35 sc=1.00","log: resume-continues: true","log: restart-start: x=0 y=0 sc=1.00 br=28.5714% | x=0 y=0 sc=1.00 br=24px | x=0 y=0 sc=1.00 br=28.5714% | x=0 y=0 sc=1.00 br=24px","log: instances: 12"],"dom":"Pause\nRestart","images":"model does not support images"}
thinking
Timeline verified: - Duration 5.1s (within 3-6s). - Shapes change position, scale, border-radius across phases; loop end (t=5.10) matches start (t=0.00) → seamless loop. - Dots staggered y-hop + opacity/scale wave, ending at initial state. - resume-continues: true. - restart: shapes return to start (br 28.57% vs 24px — mid-tween leftover for shapes 1&3 because restart paused at 0 immediately before tween render; that's a sampling artifact — pause(0) then read computed style before first tick. Actually at t=0 borderRadius should be 24px since gsap.set applied it. The 28.57% is odd — perhaps the first tween's start values were captured as 50%? No—restart(0) sets time 0; tween 1 at progress 0 renders start values which were recorded from current state at tween creation (24px). Hmm 28.57% = 24/84? 24px on 84px element = 28.57%... getComputedStyle returns percentage because the tween stored borderRadius as percentage? The phase-1 tween sets borderRadius to "50%" for shapes 1&3, so when re-rendering at t=0, computed style interpolates? Actually GSAP interpolates between "24px" start and "50%" end — at progress 0 it should be exactly start "24px" but the computed style may report percentage. Not a real problem: visually at t=0 it's the recorded start value. But to be safe, when restarting, all good since repeat loops naturally end at start pose (t=5.10 shows br=24px exactly for all). Restart shows a minor discrepancy only because pause(0) renders the first tween at exactly progress 0 where GSAP may render... it should render start values. Slight interpolation quirk; acceptable. - instances: 12, no growth. Now remove the temp test and do a quick visual screenshot check via motion? I can't see images. Just remove the test and reload to confirm no console errors.
All checks pass: duration 5.1s, shapes transition through fan-out → bar row → pulse → spiral with position/scale/radius changes, loop end matches start exactly, dots stagger, resume continues, no instance growth. Now removing the temporary test snippet:
{"edits":[{"newText":" });","oldText":" });\n\n // ---- TEMPORARY SELF-TEST (remove before final) ----\n const snap = () => shapes.map(sSuccessfully replaced 1 block(s) in /tmp/job-r81UGC/index.html.
{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Pause\nRestart","images":"model does not support images"}
{"action":"click","x":553,"y":660}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Pause\nRestart","images":"model does not support images"}
{"action":"screenshot"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Pause\nRestart","images":"model does not support images"}
{"action":"motion"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Pause\nRestart","images":"model does not support images"}
thinking
Can't view images. The DOM shows "Pause Restart" — wait, I clicked at 553,660 which should be the Pause button. But DOM still shows "Pause" — maybe the click missed or the label stayed "Pause" because paused toggled twice? No — click once should toggle to "Resume". Hmm, the DOM output might be a static text extraction not reflecting current label. The button text starts as "Pause"; after click it becomes "Resume". DOM shows "Pause" — maybe click missed the button (coordinates). Controls row is centered; stage 220px + dots + gap 42... roughly buttons around y≈640-680. Could have missed. Let me verify button state differently: click then use browser inspect — but inspect also gives the same dom string. I can't easily distinguish. Alternative: use bash to run a headless check? No node with jsdom guaranteed. Let me just test via bash with node? gsap works in node. But controls are DOM. Could check with a quick node test of timeline logic — already done via browser console sampling. For the button, I could add console.log on click temporarily... Actually simpler: temporarily add a log in the pause handler, click, read console, remove. Or just trust the code — it's straightforward. But I already clicked once; if it registered, animation is now paused and button says "Resume". To be safe, add a quick temporary console log in click handlers, click both buttons, verify, remove. Alternatively use browser "key"? Not applicable. Let's do temporary logging.
I can't view images in this environment, so let me verify the button handlers via a temporary console log:
{"edits":[{"newText":" if (paused) {\n tl.pause(); // freezes exactly at current position\n pauseBtn.textContent = \"RSuccessfully replaced 2 block(s) in /tmp/job-r81UGC/index.html.
{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Pause\nRestart","images":"model does not support images"}
{"command":"grep -n 'button\\|pauseBtn\\|restartBtn' /tmp/job-r81UGC/index.html | head -20"}60: button { 70: button:hover { background: #273449; border-color: #475569; } 71: button:active { transform: translateY(1px); } 94: <button id="pauseBtn">Pause</button> 95: <button id="restartBtn">Restart</button> 214: const pauseBtn = document.getElementById("pauseBtn"); 217: pauseBtn.addEventListener("click", () => { 221: pauseBtn.textContent = "Resume"; 224: pauseBtn.textContent = "Pause"; 229: document.getElementById("restartBtn").addEventListener("click", () => { 234: pauseBtn.textContent = "Pause";
{"action":"click","x":553,"y":655}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Pause\nRestart","images":"model does not support images"}
thinking
No log appeared. Maybe the buttons are not at y=655, or clicks aren't registering handlers. Let me check layout: body is flex column centered. Stage 360×220, dots ~14px, controls buttons ~40px tall, gaps 42px. Total ≈ 220+42+14+42+40 = 358 → starts at y≈221. Controls at y ≈ 221+220+42+14+42 = 539 to 579, centered horizontally. Viewport 1200×800 → buttons centered at x=600. Two buttons with 12px gap, each ~90px wide → total ~192, so Pause spans ~504-596, Restart ~604-696. So click at (550, 555).
Buttons are higher up than I guessed. Let me compute: stage 220px + gaps... center column ≈ y 540-580. Clicking there:
{"action":"click","x":550,"y":555}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: PAUSE_TOGGLED paused= true tlState= true time= 2.45"],"dom":"Resume\nRestart","images":"model does not support images"}
thinking
Pause works — timeline frozen at t=2.45, tl.paused()=true, button now "Resume". Now click again to resume, then Restart at (650, 555).
Pause works (frozen at t=2.45). Now Resume, then Restart:
{"action":"click","x":550,"y":555}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: PAUSE_TOGGLED paused= true tlState= true time= 2.45","log: PAUSE_TOGGLED paused= false tlState= false time= 2.45"],"dom":"Pause\nRestart","images":"model does not support images"}
{"action":"click","x":650,"y":555}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","log: PAUSE_TOGGLED paused= true tlState= true time= 2.45","log: PAUSE_TOGGLED paused= false tlState= false time= 2.45","log: RESTART time= 0.00 paused= false"],"dom":"Pause\nRestart","images":"model does not support images"}
thinking
All controls verified. Now remove the temporary console logs and do a final reload check.
All controls verified. Removing the temporary debug logs:
{"edits":[{"newText":" pauseBtn.textContent = \"Pause\";\n }\n });","oldText":" pauseBtn.textContent = \"Pause\";\n }\n Successfully replaced 2 block(s) in /tmp/job-r81UGC/index.html.
{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Pause\nRestart","images":"model does not support images"}
thinking
Clean reload, no errors. Done. Report.
Done. `index.html` is complete and verified. **What it contains:** - Dark background (`#0b0e17`) with a centered composition: 4 rounded 84px squares (pink/blue/violet/yellow) + a row of 5 colored dots, and Pause/Restart buttons. - One GSAP master timeline (`repeat: -1`, duration **5.1s** — within the 3–6s window) coordinating both elements: - **Shapes:** fan out from center into a diamond (circular vs. rounded morph, scale/rotation changes, `back.out` easing) → morph into a horizontal row of circles → center-out squash-and-stretch pulse → spiral back with `power3.inOut` → settle into the exact starting pose so the loop repeats seamlessly. - **Dots:** two staggered bounce-hop waves, then a center-out opacity/scale brightness wave, returning to the initial state. - Controls: **Pause** freezes at current position (`tl.pause()`), **Resume** continues (`tl.resume()`), **Restart** returns to t=0 and clears any paused state. **Verified via browser console (timeline sampling at t = 0, 0.51, 1.27, 2.04, 2.81, 3.57, 4.33, 5.10):** - Shape x/y/scale/border-radius values transition smoothly through all phases; state at t=5.10 exactly equals t=0 (no loop jump). - Dots show staggered y-offset hops and center-out opacity 0.35→1.0 / scale 1→1.5 waves. - `resume-continues` check passed; restart returns to the initial composition (x=0, y=0, scale=1). - GSAP instance count stayed constant (12) — no accumulating animations. - Clicked Pause (froze at t=2.45, button → "Resume"), Resume (continued from 2.45), and Restart (t=0.00) — all logged and working. **Not verified:** visual appearance (screenshots unavailable in this environment) — layout, colors, and easing curves were confirmed only via computed style sampling; rendering in a real browser is assumed correct from the sampled values.