21 lines
565 B
JavaScript
21 lines
565 B
JavaScript
'use strict';
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module.exports = {
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setYRandom
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};
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function setYRandom(context, events, done) {
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if (context.angle === undefined) {
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context.angle = Math.random() * Math.PI * 2;
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}
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context.angle += 0.05;
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context.vars.x = 320 + 1472/2 * (1 + Math.sin(context.angle));
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context.vars.y = 200 + 1090/2 * (1 + Math.cos(context.angle));
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context.vars.left = context.vars.x - 320;
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context.vars.top = context.vars.y - 200;
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context.vars.right = context.vars.x + 320;
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context.vars.bottom = context.vars.y + 200;
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return done();
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}
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