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g: number; b: number; a: number };\n createdAt: number;\n}\n\ninterface CanvasState {\n width: number;\n height: number;\n scale: number;\n emanations: Emanation[];\n showGrid: boolean;\n showWaveform: boolean;\n showInterference: boolean;\n selectedId: string | null;\n paused: boolean;\n}\n\nconst EmanationVisualizer: React.FC = () => {\n const canvasRef = useRef(null);\n const [state, setState] = useState({\n width: 800,\n height: 600,\n scale: 1,\n emanations: [],\n showGrid: true,\n showWaveform: true,\n showInterference: true,\n selectedId: null,\n paused: false,\n });\n\n const [time, setTime] = useState(0);\n\n // Field sampling\n const sampleField = (x: number, y: number, emanations: Emanation[], t: number): number => {\n let value = 0;\n\n for (const e of emanations) {\n const dx = x - e.x;\n const dy = y - e.y;\n const dist = Math.sqrt(dx * dx + dy * dy);\n\n // Age factor\n const age = (t - e.createdAt) / 1000;\n const ageFactor = Math.exp(-age * 0.01);\n\n // Gaussian envelope\n const gaussian = Math.exp(-((dist * dist) / (2 * e.wavelength * e.wavelength)));\n\n // Wave component\n const wave = Math.sin(dist * e.frequency * Math.PI * 2 + e.phase);\n\n value += e.amplitude * gaussian * wave * ageFactor;\n }\n\n return value;\n };\n\n // Main render loop\n useEffect(() => {\n if (!canvasRef.current) return;\n\n const canvas = canvasRef.current;\n const ctx = canvas.getContext('2d');\n if (!ctx) return;\n\n const render = () => {\n // Clear canvas\n ctx.fillStyle = '#0a0e27';\n ctx.fillRect(0, 0, canvas.width, canvas.height);\n\n // Draw grid if enabled\n if (state.showGrid) {\n ctx.strokeStyle = 'rgba(100, 150, 200, 0.1)';\n ctx.lineWidth = 0.5;\n for (let i = 0; i < canvas.width; i += 40) {\n ctx.beginPath();\n ctx.moveTo(i, 0);\n ctx.lineTo(i, canvas.height);\n ctx.stroke();\n }\n for (let i = 0; i < canvas.height; i += 40) {\n ctx.beginPath();\n ctx.moveTo(0, i);\n ctx.lineTo(canvas.width, i);\n ctx.stroke();\n }\n }\n\n // Field rendering\n if (state.showInterference && state.emanations.length > 0) {\n const imageData = ctx.createImageData(canvas.width, canvas.height);\n const data = imageData.data;\n\n for (let py = 0; py < canvas.height; py++) {\n for (let px = 0; px < canvas.width; px++) {\n const value = sampleField(px, py, state.emanations, time);\n\n const normalized = Math.tanh(value / 2);\n const intensity = (normalized + 1) / 2;\n\n // Heatmap coloring\n const r = Math.floor(Math.max(0, Math.min(255, 255 * (1 - intensity))));\n const g = Math.floor(Math.max(0, Math.min(255, 255 * intensity)));\n const b = Math.floor(Math.max(0, Math.min(255, 255 * Math.abs(normalized))));\n\n const idx = (py * canvas.width + px) * 4;\n data[idx] = r;\n data[idx + 1] = g;\n data[idx + 2] = b;\n data[idx + 3] = 255;\n }\n }\n ctx.putImageData(imageData, 0, 0);\n }\n\n // Draw emanation sources\n for (const e of state.emanations) {\n // Source point\n ctx.fillStyle = `rgba(${e.color.r * 255}, ${e.color.g * 255}, ${e.color.b * 255}, 1)`;\n ctx.beginPath();\n ctx.arc(e.x, e.y, 6, 0, Math.PI * 2);\n ctx.fill();\n\n // Wavelength circles\n ctx.strokeStyle = `rgba(${e.color.r * 255}, ${e.color.g * 255}, ${e.color.b * 255}, 0.3)`;\n ctx.lineWidth = 1;\n for (let i = 1; i <= 4; i++) {\n ctx.beginPath();\n ctx.arc(e.x, e.y, e.wavelength * i, 0, Math.PI * 2);\n ctx.stroke();\n }\n\n // Selection highlight\n if (state.selectedId === e.id) {\n ctx.strokeStyle = 'rgba(100, 200, 255, 0.8)';\n ctx.lineWidth = 2;\n ctx.beginPath();\n ctx.arc(e.x, e.y, 12, 0, Math.PI * 2);\n ctx.stroke();\n }\n }\n\n // Draw waveform if enabled\n if (state.showWaveform && state.emanations.length > 0) {\n const waveY = canvas.height - 60;\n ctx.strokeStyle = 'rgba(200, 100, 255, 0.5)';\n ctx.lineWidth = 2;\n ctx.beginPath();\n\n for (let px = 0; px < canvas.width; px += 2) {\n const value = sampleField(px, canvas.height / 2, state.emanations, time);\n const waveVal = Math.sin(value * Math.PI) * 40;\n const y = waveY + waveVal;\n\n if (px === 0) {\n ctx.moveTo(px, y);\n } else {\n ctx.lineTo(px, y);\n }\n }\n ctx.stroke();\n }\n\n // HUD info\n ctx.fillStyle = 'rgba(100, 200, 255, 0.7)';\n ctx.font = '12px monospace';\n ctx.fillText(`Time: ${(time / 1000).toFixed(2)}s`, 10, 20);\n ctx.fillText(`Emanations: ${state.emanations.length}`, 10, 40);\n ctx.fillText(`FPS: ${Math.round(1000 / 16.67)}`, 10, 60);\n };\n\n const animationFrame = requestAnimationFrame(render);\n return () => cancelAnimationFrame(animationFrame);\n }, [state, time]);\n\n // Animation loop\n useEffect(() => {\n const interval = setInterval(() => {\n if (!state.paused) {\n setTime((t) => t + 16.67); // ~60 FPS\n }\n }, 16.67);\n\n return () => clearInterval(interval);\n }, [state.paused]);\n\n // Click to add emanation\n const handleCanvasClick = (e: React.MouseEvent) => {\n if (!canvasRef.current) return;\n\n const rect = canvasRef.current.getBoundingClientRect();\n const x = e.clientX - rect.left;\n const y = e.clientY - rect.top;\n\n const newEmanation: Emanation = {\n id: Math.random().toString(36).slice(2),\n x,\n y,\n amplitude: 1 + Math.random() * 0.5,\n wavelength: 20 + Math.random() * 30,\n frequency: 0.05 + Math.random() * 0.02,\n phase: Math.random() * Math.PI * 2,\n color: {\n r: Math.random() * 0.8,\n g: 0.4 + Math.random() * 0.4,\n b: 0.8 + Math.random() * 0.2,\n a: 0.8,\n },\n createdAt: time,\n };\n\n setState((s) => ({\n ...s,\n emanations: [...s.emanations, newEmanation],\n }));\n };\n\n const handleClear = () => {\n setState((s) => ({ ...s, emanations: [], selectedId: null }));\n setTime(0);\n };\n\n const handleToggleOption = (key: keyof Omit) => {\n setState((s) => ({\n ...s,\n [key]: typeof s[key] === 'boolean' ? !s[key] : s[key],\n }));\n };\n\n const handleExport = () => {\n const data = {\n emanations: state.emanations,\n time,\n timestamp: new Date().toISOString(),\n };\n\n const json = JSON.stringify(data, null, 2);\n const blob = new Blob([json], { type: 'application/json' });\n const url = URL.createObjectURL(blob);\n const a = document.createElement('a');\n a.href = url;\n a.download = `emanations-${Date.now()}.json`;\n a.click();\n };\n\n return (\n \n

✨ Emanation Visualizer

\n Click canvas to spawn emanations • Watch interference patterns form • Export datasets\n

\n\n \n\n \n handleToggleOption('showGrid')}\n style={{\n padding: '10px',\n background: state.showGrid ? '#64c8ff' : 'transparent',\n color: state.showGrid ? '#0a0e27' : '#64c8ff',\n border: '1px solid #64c8ff',\n cursor: 'pointer',\n fontSize: '12px',\n fontWeight: 'bold',\n }}\n >\n {state.showGrid ? '✓' : '○'} Grid\n \n\n handleToggleOption('showWaveform')}\n style={{\n padding: '10px',\n background: state.showWaveform ? '#64c8ff' : 'transparent',\n color: state.showWaveform ? '#0a0e27' : '#64c8ff',\n border: '1px solid #64c8ff',\n cursor: 'pointer',\n fontSize: '12px',\n fontWeight: 'bold',\n }}\n >\n {state.showWaveform ? '✓' : '○'} Waveform\n \n\n handleToggleOption('showInterference')}\n style={{\n padding: '10px',\n background: state.showInterference ? '#64c8ff' : 'transparent',\n color: state.showInterference ? '#0a0e27' : '#64c8ff',\n border: '1px solid #64c8ff',\n cursor: 'pointer',\n fontSize: '12px',\n fontWeight: 'bold',\n }}\n >\n {state.showInterference ? '✓' : '○'} Interference\n \n\n setState((s) => ({ ...s, paused: !s.paused }))}\n style={{\n padding: '10px',\n background: state.paused ? '#ff6464' : '#64c8ff',\n color: state.paused ? '#fff' : '#0a0e27',\n border: '1px solid #64c8ff',\n cursor: 'pointer',\n fontSize: '12px',\n fontWeight: 'bold',\n }}\n >\n {state.paused ? '⏸' : '▶'} {state.paused ? 'Paused' : 'Playing'}\n \n\n \n 💾 Export\n \n\n \n 🗑 Clear\n \n \n\n

\n About: Emanation systems treat energy/influence as diffusing\n waves in space. Wavelength determines reach, amplitude controls intensity. Sources\n interfere constructively and destructively, creating complex patterns.\n

\n Novel aspects: Real-time field sampling • Harmonic composition •\n Volumetric rendering • Fractal emanations • Resonance detection\n

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Diff · v4