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p5: force multiplier
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| license: mit |
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.
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/0.5.4/p5.min.js"></script> | |
| <style> | |
| body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| var width = 960; | |
| var height = 500; | |
| var radius = 50; | |
| var dt = 0.03 | |
| var particles = []; | |
| function setup() { | |
| console.log("size") | |
| createCanvas(960, 500); | |
| } | |
| function draw() { | |
| background(0,0,0,205) | |
| ellipse(mouseX, mouseY, 80, 80); | |
| var p; | |
| for(var i = 0; i < particles.length; i++) { | |
| p = particles[i] | |
| ellipse(p.x, p.y, 50, 50); | |
| p.x += p.vx * dt | |
| p.y += p.vy * dt | |
| } | |
| } | |
| // generate stuff over time | |
| var period = 850 | |
| function loop() { | |
| particles.push({ | |
| x: 100, | |
| y: 200, | |
| vx: 40 + Math.random() * 40, | |
| vy: -50 + Math.random() * 100 | |
| }) | |
| //if(Math.random() < 0.4) particles.splice(0,1) | |
| setInterval(loop, period); | |
| } | |
| setInterval(loop, period); | |
| </script> | |
| </body> |
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