Mandelbrot explorer · llama-3.1-8b-instruct
No runnable output Cost / run $0.0006 Runtime 6.8s
Prompt for this run
Build an interactive Mandelbrot-set explorer on a full-screen canvas. 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. No third-party libraries are provided. Required behavior: - Compute the Mandelbrot set from complex coordinates and use a smooth escape-time color gradient, with a distinct color for points treated as inside the set. - Initially show the complete main cardioid and surrounding lobes. Dragging pans the image with the pointer. Mouse-wheel zoom is centered on the complex point under the cursor. - Recompute the fractal after navigation rather than scaling a static image. Use sufficient iterations to reveal new detail as the user zooms, and keep controls responsive during rendering. - Provide Reset view to restore the initial bounds. Prevent wheel navigation from scrolling the surrounding page. - Use Canvas 2D or WebGL and procedural colors; do not load a fractal image. Verify: Zoom into a recognizable boundary point and check that it stays near the cursor while additional detail is rendered. Pan the view, then use Reset view and compare with the initial framing.
This one-shot run produced no runnable artifact.
Error: agent produced no index.html
The transcript below shows what the model did — read it to see why the one shot fell short.
TAKE IT TO CODE
This run produced no artifact — reuse the prompt with a different model or your own pi-agent run.
RUN
METRICS
Transcript · 7 messages
Build an interactive Mandelbrot-set explorer on a full-screen canvas. 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. No third-party libraries are provided. Required behavior: - Compute the Mandelbrot set from complex coordinates and use a smooth escape-time color gradient, with a distinct color for points treated as inside the set. - Initially show the complete main cardioid and surrounding lobes. Dragging pans the image with the pointer. Mouse-wheel zoom is centered on the complex point under the cursor. - Recompute the fractal after navigation rather than scaling a static image. Use sufficient iterations to reveal new detail as the user zooms, and keep controls responsive during rendering. - Provide Reset view to restore the initial bounds. Prevent wheel navigation from scrolling the surrounding page. - Use Canvas 2D or WebGL and procedural colors; do not load a fractal image. Verify: Zoom into a recognizable boundary point and check that it stays near the cursor while additional detail is rendered. Pan the view, then use Reset view and compare with the initial framing.
<write>{ "content": "<style> html, body { width: 100%; height: 100%; margin: 0; padding: 0; } canvas { border: 1px solid black; } </style> <canvas id=\"fractal\" width=\"800\" height=\"600\"></canvas> <script> const canvas = document.getElementById(\"fractal\"); const ctx = canvas.getContext(\"2d\"); let xMin = -2.5, xMax = 1.5, yMin = -1, yMax = 1; let zoom = 100; let panX = -0.5, panY = 0; let iterations = 100; let maxIterations = 255; function mandelbrot(x, y) { let zX = x, zY = y; for (let i = 0; i < iterations; i++) { let zXX = zX * zX - zY * zY + x; zY = 2 * zX * zY + y; zX = zXX; if (zX * zX + zY * zY > 4) return i; } return maxIterations; } function drawFractal() { let im = canvas.height; let re = canvas.width; let pixels = canvas.getContext(\"2d\").getImageData(0, 0, re, im); for (let x = 0; x < re; x++) { for (let y = 0; y < im; y++) { let xPix = (x - panX) / zoom * (xMax - xMin) + xMin; let yPix = (y - panY) / zoom * (yMax - yMin) + yMin; let mandel = mandelbrot(xPix, yPix); pixels.data[(y * re + x) * 4] = mandel; pixels.data[(y * re + x) * 4 + 1] = mandel; pixels.data[(y * re + x) * 4 + 2] = mandel; pixels.data[(y * re + x) * 4 + 3] = mandel < maxIterations ? 255 : 0; } } canvas.getContext(\"2d\").putImageData(pixels, 0, 0); } function reset() { zoom = 100; panX = -0.5; panY = 0; } canvas.addEventListener(\"wheel\", function(event) { if (event.deltaY > 0) { zoom /= 1.1; panX += event.clientX / zoom / 100; panY += event.clientY / zoom / 100; } else { zoom *= 1.1; panX -= event.clientX / zoom / 100; panY -= event.clientY / zoom / 100; } drawFractal(); } ); canvas.addEventListener(\"mousedown\", function(event) { event.preventDefault(); document.addEventListener(\"mousemove\", function(event) { panX += event.clientX - canvas.offsetLeft - (event.clientX - canvas.offsetLeft + 400) / zoom; panY += event.clientY - canvas.offsetTop - (event.clientY - canvas.offsetTop + 300) / zoom; drawFractal(); document.removeEventListener(\"mousemove\", arguments.callee); }, false); document.addEventListener(\"mouseup\", function(event) { document.removeEventListener(\"mousemove\", arguments.callee); }, false); }); drawFractal(); ", "path": "./" }</write> <browser>{ "action": "inspect", "delta": 0, "text": "", "toX": 800, "toY": 600, "x": 800, "y": 600 }</browser> <read>{ "limit": 100, "offset": 0, "path": "./index.html" }</read> <browser>{ "action": "screenshot", "delta": 0, "text": "", "toX": 800, "toX": 1200, "toY": 600, "toY": 800, "x": 800, "x": 1200, "y": 600, "y": 800 }</browser> <read>{ "limit": 100, "offset": 0, "path": "./index.html" }</read>
The output file index.html has not been written, or is empty. Write the complete app to index.html in the current directory now. Use the remaining time to verify it, then finish. The original 15-minute deadline still applies.
<write>{ "content": "<style> html, body { width: 100%; height: 100%; margin: 0; padding: 0; } canvas { border: 1px solid black; } </style> <canvas id=\"fractal\" width=\"800\" height=\"600\"></canvas> <button id=\"reset\">Reset view</button> <input type=\"range\" id=\"zoom\" min=\"0\" max=\"1000\" value=\"100\" step=\"1\">Zoom</input> <input type=\"range\" id=\"xpan\" min=\"-1000\" max=\"1000\" value=\"-500\" step=\"1\">Pan X</input> <input type=\"range\" id=\"ypan\" min=\"-1000\" max=\"1000\" value=\"0\" step=\"1\">Pan Y</input> <input id=\"maxIterations\" type=\"range\" min=\"0\" max=\"1000\" value=\"255\" step=\"1\">Max Iterations</input> <script> const canvas = document.getElementById(\"fractal\"); const ctx = canvas.getContext(\"2d\"); const resetButton = document.getElementById(\"reset\"); const zoomInput = document.getElementById(\"zoom\"); const xpanInput = document.getElementById(\"xpan\"); const ypanInput = document.getElementById(\"ypan\"); const maxIterationsInput = document.getElementById(\"maxIterations\"); let xMin = -2.5, xMax = 1.5, yMin = -1, yMax = 1; let zoom = Number(zoomInput.value); let panX = Number(xpanInput.value) / zoom; let panY = Number(ypanInput.value) / zoom; let maxIterations = Number(maxIterationsInput.value); let iterations = 100; function mandelbrot(x, y) { let zX = x, zY = y; for (let i = 0; i < iterations; i++) { let zXX = zX * zX - zY * zY + x; zY = 2 * zX * zY + y; zX = zXX; if (zX * zX + zY * zY > 4) return Math.floor(i); } return maxIterations; } function drawFractal() { let im = canvas.height; let re = canvas.width; let pixels = canvas.getContext(\"2d\").getImageData(0, 0, re, im); for (let x = 0; x < re; x++) { for (let y = 0; y < im; y++) { let xPix = (x - 400 + panX * zoom) / zoom * (xMax - xMin) + xMin; let yPix = (y - 300 + panY * zoom) / zoom * (yMax - yMin) + yMin; let mandel = mandelbrot(xPix, yPix); pixels.data[(y * re + x) * 4] = mandel; pixels.data[(y * re + x) * 4 + 1] = mandel; pixels.data[(y * re + x) * 4 + 2] = mandel; pixels.data[(y * re + x) * 4 + 3] = mandel < maxIterations ? 255 : 0; } } canvas.getContext(\"2d\").putImageData(pixels, 0, 0); drawZoomSlider(); drawPanSliders(); } function drawZoomSlider() { let sliderValue = (zoom * (panX - Number(xpanInput.value)) / (Number(xpanInput.max) - Number(xpanInput.min))) + 400; zoomInput.value = zoom; document.getElementById(\"zoom\").style.left = (sliderValue - 20) + \"px\"; } function drawPanSliders() { xpanInput.value = (Number(xpanInput.min) + panX * zoom) - 400; ypanInput.value = panY * zoom; document.getElementById(\"xpan\").style.left = (canvas.offsetWidth * ((400 - Number(xpanInput.value)) / 1000)) + \"px\"; document.getElementById(\"ypan\").style.top = (canvas.offsetHeight*(300- Number(ypanInput.value))) + \"px\"; } function mouseDown(event) { event.preventDefault(); let rect = canvas.getBoundingClientRect(); x = event.clientX - rect.left; y = event.clientY - rect.top; dragging = true; function mouseMove(event) { panX += (event.clientX - x) / zoom / 100; panY += (event.clientY - y) / zoom / 100; panX = Math.min(-4, Math.max(-1000, panX)); panY = Math.min(4, Math.max(-1, panY)); drawFractal(); x = canvas.offsetLeft + event.clientX; y = canvas.offsetTop + event.clientY; } function mouseUp(event) { mouseMove(event); dragging = false; document.removeEventListener(\"mousemove\", mouseMove); document.removeEventListener(\"mouseup\", mouseUp); } document.addEventListener(\"mousemove\", mouseMove, false); document.addEventListener(\"mouseup\", mouseUp, false); } function resetFractal() { zoom = Number(zoomInput.value); panX = Number(xpanInput.value) / zoom; panY = Number(ypanInput.value) / zoom; maxIterations = Number(maxIterationsInput.value); drawFractal(); } resetButton.addEventListener(\"click\", resetFractal); canvas.addEventListener(\"mousedown\", mouseDown); drawFractal(); </script> ", "path": "./" }</write>
The output file index.html has not been written, or is empty. Write the complete app to index.html in the current directory now. Use the remaining time to verify it, then finish. The original 15-minute deadline still applies.
<write>{ "content": "<style> html, body { width: 100%; height: 100%; margin: 0; padding: 0; } canvas { border: 1px solid black; } </style> <canvas id=\"fractal\" width=\"800\" height=\"600\"></canvas> <button id=\"reset\">Reset view</button> <input type=\"range\" id=\"zoom\" min=\"0\" max=\"1000\" value=\"100\" step=\"1\">Zoom</input> <input type=\"range\" id=\"xpan\" min=\"-1000\" max=\"1000\" value=\"-500\" step=\"1\">Pan X</input> <input type=\"range\" id=\"ypan\" min=\"-1000\" max=\"1000\" value=\"0\" step=\"1\">Pan Y</input> <input id=\"maxIterations\" type=\"range\" min=\"0\" max=\"1000\" value=\"255\" step=\"1\">Max Iterations</input> <script> const canvas = document.getElementById(\"fractal\"); const ctx = canvas.getContext(\"2d\"); const resetButton = document.getElementById(\"reset\"); const zoomInput = document.getElementById(\"zoom\"); const xpanInput = document.getElementById(\"xpan\"); const ypanInput = document.getElementById(\"ypan\"); const maxIterationsInput = document.getElementById(\"maxIterations\"); let xMin = -2.5, xMax = 1.5, yMin = -1, yMax = 1; let zoom = Number(zoomInput.value); let panX = Number(xpanInput.value) / zoom; let panY = Number(ypanInput.value) / zoom; let maxIterations = Number(maxIterationsInput.value); let iterations = 100; function mandelbrot(x, y) { let zX = x, zY = y; for (let i = 0; i < iterations; i++) { let zXX = zX * zX - zY * zY + x; zY = 2 * zX * zY + y; zX = zXX; if (zX * zX + zY * zY > 4) return Math.floor(i); } return maxIterations; } function drawFractal() { let im = canvas.height; let re = canvas.width; let pixels = canvas.getContext(\"2d\").getImageData(0, 0, re, im); for (let x = 0; x < re; x++) { for (let y = 0; y < im; y++) { let xPix = (x - 400 + panX * zoom) / zoom * (xMax - xMin) + xMin; let yPix = (y - 300 + panY * zoom) / zoom * (yMax - yMin) + yMin; let mandel = mandelbrot(xPix, yPix); pixels.data[(y * re + x) * 4] = mandel; pixels.data[(y * re + x) * 4 + 1] = mandel; pixels.data[(y * re + x) * 4 + 2] = mandel; pixels.data[(y * re + x) * 4 + 3] = mandel < maxIterations ? 255 : 0; } } canvas.getContext(\"2d\").putImageData(pixels, 0, 0); drawZoomSlider(); drawPanSliders(); } function drawZoomSlider() { let sliderValue = (zoom * (panX - Number(xpanInput.value)) / (Number(xpanInput.max) - Number(xpanInput.min))) + 400; zoomInput.value = zoom; document.getElementById(\"zoom\").style.left = (sliderValue - 20) + \"px\"; } function drawPanSliders() { xpanInput.value = (Number(xpanInput.min) + panX * zoom) - 400; ypanInput.value = panY * zoom; document.getElementById(\"xpan\").style.left = (canvas.offsetWidth * ((400 - Number(xpanInput.value)) / 1000)) + \"px\"; document.getElementById(\"ypan\").style.top = (canvas.offsetHeight*(300- Number(ypanInput.value))) + \"px\"; } function mouseDown(event) { event.preventDefault(); let rect = canvas.getBoundingClientRect(); x = event.clientX - rect.left; y = event.clientY - rect.top; dragging = true; function mouseMove(event) { panX += (event.clientX - x) / zoom / 100; panY += (event.clientY - y) / zoom / 100; panX = Math.min(-1000, Math.max(xMin+(xMax-xMin)/200, panX)); panY = Math.min(1000, Math.max(yMin+(yMax-yMin)/200, panY)); drawFractal(); x = canvas.offsetLeft + event.clientX; y = canvas.offsetTop + event.clientY; } function mouseUp(event) { mouseMove(event); dragging = false; document.removeEventListener(\"mousemove\", mouseMove); document.removeEventListener(\"mouseup\", mouseUp); } document.addEventListener(\"mousemove\", mouseMove, false); document.addEventListener(\"mouseup\", mouseUp, false); } function resetFractal() { zoom = Number(zoomInput.value); panX = Number(xpanInput.value) / zoom; panY = Number(ypanInput.value) / zoom; maxIterations = Number(maxIterationsInput.value); drawFractal(); } resetButton.addEventListener(\"click\", resetFractal); canvas.addEventListener(\"mousedown\", mouseDown); drawFractal(); </script> ", "path": "./" }</write>