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export const Canvas: Mithril.FactoryComponent = () => { | |
let canvas: HTMLCanvasElement, context: CanvasRenderingContext2D; | |
let points: number[] = []; | |
let data: ImageData; | |
function onMouseDown(e: MouseEvent) { | |
data = context.getImageData(0, 0, canvas.width, canvas.height); | |
points.push(e.offsetX, e.offsetY); |
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https://flems.io/#0=N4Igxg9gdgzhA2BTEAucD4EMAONEBMQAaEAMwEskZUBtUKTAW2TQDoALAF0fmPSk6IBqECAC+RekxYhWAK2olIAoZxHKYnAAQBleOXyIATloC8W4AB0o1rXa3RyUcpwAUUCIYCUF2-f8ehqyamIKsAG6Y8ACuiGZagYisoZxGMBFRsQDcfv52icGcoUlGmFAA5nHmALKh7MkARjDunkkpaayMmAAeWgC0Ca3JnKnpjE5eOVD+Eta5WuHkiADuLd6+NtN5dhrawFrjUEQHPVpi8QXtMFPbO9CaWiGCF0NPiDe3uxZapRVx5+Y3lN5v4vpEYlUtK5XGAsIxsK43hkIcdDqiej4APQ-MqVHwAKi0AEYAAwkrysTgQABi5G6BFcACZJiD7F9GBBongABJlfBIEzmVyIHymAB8G1ueSSmgg2AACkY5ZhyqFyNBXCytlK7EjwbF4vrENSlYwAPKkUh4TgADWFrAglutNtRTmOvzxH22YmB2ryRkQnGiRmmjFcAHJhlA+jB9IYjOHjlY-VLoLDyGAANYoA6cnl8gVEVnbaAcrmIDnhRA5sv5qD84zFs7HGhN-xhyOhaOpTBZ8NeIsp24dqN9I2J76aACeSBzAANlgZOOwcwASYBGsQAUjnZwHbfsI67fWX0UYDQnyZ1t2ns60c6QpE4a43mUQ27ng+vdjEXibAF0tRmOYoDEEDSGiKAwE4dVpiNE0IHNJ1AztbpXSOHE-h8K97ADIMQwOJwtAAaihXpsUZMkCUwyopjAzYIKgmDoC0WEmARI10PRbpsPmPDg2mWpl06HpXDRLQhPqQ4xJ6Y4jS8P9QJAr4AEFsGweIcLsRYVk1SVbn4giwz0AxjCTA87EOHMSW4nNSRshY3xzAB2Ekm1-L0zmsH0QMYTpOQEVx8AgMAz1UVgGk8KdjjU7BJj4SB4UoYxUCgaJ4HgEg8CQaDYOoNBnJQIkADZxEkEAGGYERWDAGBFH4QRhDQSL8CnfS7AaXtM3KJ |
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export default function hash(string) { | |
const length = string.length; | |
let h = 0, a = 63689, b = 378551; | |
for (let i = 0; i < length; i++) | |
{ | |
h = (Math.imul(h, a) + string.charCodeAt(i)) >>> 0; | |
a = Math.imul(a, b) >>> 0; | |
} | |
return h; | |
} |