Created
July 31, 2017 06:15
-
-
Save anonymous/d554bbbdb008ae4abf43e7cf596140a1 to your computer and use it in GitHub Desktop.
JS Bin // source https://jsbin.com/lufixucuzi
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width"> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <canvas id="canvas" width="640" height="480"/> | |
| <script id="jsbin-javascript"> | |
| window.onload = function() { | |
| const canvas = document.getElementById("canvas"); | |
| const ctx = canvas.getContext("2d"); | |
| const H = canvas.height; | |
| const W = canvas.width; | |
| function drawStuff(cnt) { | |
| // const jx = (Math.random() * 4 - 2) | |
| // const jy = (Math.random() * 2) | |
| let r = 128 + Math.random() * 128 | 0 | |
| // let g = Math.random() * 255 | 0 | |
| //const r = g | |
| const g = (Math.random() > 0.5 ? 0 : 0.5*r) | 0 | |
| // let b = Math.random() * 255 | 0 | |
| let b = 0 | |
| // r=0 | |
| // g = 0 | |
| // b = 0 | |
| const R = () => Math.random() | |
| const w = R() * 100 | |
| const h = R() * 50 | |
| const a = R() | |
| const color = `rgba(${r},${g},${b},${a})` | |
| //console.log(color) | |
| const x = R() * W; | |
| const y = R() * H; | |
| const x2 = (cnt*32) % W; | |
| const y2 = (cnt*32) % H; | |
| // ctx.strokeStyle = "white" | |
| // ctx.strokeStyle = R() > 0.5 ? "black" : "white" | |
| //ctx.globalCompositeOperation = "multiply"; | |
| ctx.globalCompositeOperation = "xor"; | |
| ctx.strokeStyle = color | |
| //console.log(color, "ctx="+ ctx.strokeStyle) | |
| ctx.strokeStyle = R() > 0.5 ? "goldenrod" : "black" | |
| ctx.strokeRect(x,y,w,w) | |
| // ctx.font = '48px sans' | |
| // ctx.strokeText("Lou",x2,y2) | |
| //ctx.fillStyle = color | |
| // ctx.fillRect(x,y,w,w) | |
| } | |
| let cnt = 0 | |
| function main(...args) { | |
| window.requestAnimationFrame(main) | |
| //console.log(...args) | |
| for (i = 0; i < 100; i++) { | |
| drawStuff(cnt++) | |
| } | |
| } | |
| main(0) | |
| } | |
| </script> | |
| <script id="jsbin-source-javascript" type="text/javascript">window.onload = function() { | |
| const canvas = document.getElementById("canvas"); | |
| const ctx = canvas.getContext("2d"); | |
| const H = canvas.height; | |
| const W = canvas.width; | |
| function drawStuff(cnt) { | |
| // const jx = (Math.random() * 4 - 2) | |
| // const jy = (Math.random() * 2) | |
| let r = 128 + Math.random() * 128 | 0 | |
| // let g = Math.random() * 255 | 0 | |
| //const r = g | |
| const g = (Math.random() > 0.5 ? 0 : 0.5*r) | 0 | |
| // let b = Math.random() * 255 | 0 | |
| let b = 0 | |
| // r=0 | |
| // g = 0 | |
| // b = 0 | |
| const R = () => Math.random() | |
| const w = R() * 100 | |
| const h = R() * 50 | |
| const a = R() | |
| const color = `rgba(${r},${g},${b},${a})` | |
| //console.log(color) | |
| const x = R() * W; | |
| const y = R() * H; | |
| const x2 = (cnt*32) % W; | |
| const y2 = (cnt*32) % H; | |
| // ctx.strokeStyle = "white" | |
| // ctx.strokeStyle = R() > 0.5 ? "black" : "white" | |
| //ctx.globalCompositeOperation = "multiply"; | |
| ctx.globalCompositeOperation = "xor"; | |
| ctx.strokeStyle = color | |
| //console.log(color, "ctx="+ ctx.strokeStyle) | |
| ctx.strokeStyle = R() > 0.5 ? "goldenrod" : "black" | |
| ctx.strokeRect(x,y,w,w) | |
| // ctx.font = '48px sans' | |
| // ctx.strokeText("Lou",x2,y2) | |
| //ctx.fillStyle = color | |
| // ctx.fillRect(x,y,w,w) | |
| } | |
| let cnt = 0 | |
| function main(...args) { | |
| window.requestAnimationFrame(main) | |
| //console.log(...args) | |
| for (i = 0; i < 100; i++) { | |
| drawStuff(cnt++) | |
| } | |
| } | |
| main(0) | |
| }</script></body> | |
| </html> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| window.onload = function() { | |
| const canvas = document.getElementById("canvas"); | |
| const ctx = canvas.getContext("2d"); | |
| const H = canvas.height; | |
| const W = canvas.width; | |
| function drawStuff(cnt) { | |
| // const jx = (Math.random() * 4 - 2) | |
| // const jy = (Math.random() * 2) | |
| let r = 128 + Math.random() * 128 | 0 | |
| // let g = Math.random() * 255 | 0 | |
| //const r = g | |
| const g = (Math.random() > 0.5 ? 0 : 0.5*r) | 0 | |
| // let b = Math.random() * 255 | 0 | |
| let b = 0 | |
| // r=0 | |
| // g = 0 | |
| // b = 0 | |
| const R = () => Math.random() | |
| const w = R() * 100 | |
| const h = R() * 50 | |
| const a = R() | |
| const color = `rgba(${r},${g},${b},${a})` | |
| //console.log(color) | |
| const x = R() * W; | |
| const y = R() * H; | |
| const x2 = (cnt*32) % W; | |
| const y2 = (cnt*32) % H; | |
| // ctx.strokeStyle = "white" | |
| // ctx.strokeStyle = R() > 0.5 ? "black" : "white" | |
| //ctx.globalCompositeOperation = "multiply"; | |
| ctx.globalCompositeOperation = "xor"; | |
| ctx.strokeStyle = color | |
| //console.log(color, "ctx="+ ctx.strokeStyle) | |
| ctx.strokeStyle = R() > 0.5 ? "goldenrod" : "black" | |
| ctx.strokeRect(x,y,w,w) | |
| // ctx.font = '48px sans' | |
| // ctx.strokeText("Lou",x2,y2) | |
| //ctx.fillStyle = color | |
| // ctx.fillRect(x,y,w,w) | |
| } | |
| let cnt = 0 | |
| function main(...args) { | |
| window.requestAnimationFrame(main) | |
| //console.log(...args) | |
| for (i = 0; i < 100; i++) { | |
| drawStuff(cnt++) | |
| } | |
| } | |
| main(0) | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment