Binato/server/util/Maths.js

15 lines
No EOL
512 B
JavaScript

module.exports = {
map:function(input, inputMin, inputMax, outputMin, outputMax) {
const newv = (input - inputMin) / (inputMax - inputMin) * (outputMax - outputMin) + outputMin;
if (outputMin < outputMax) return this.constrain(newv, outputMin, outputMax);
else return this.constrain(newv, outputMax, outputMin);
},
constrain:function(input, low, high) {
return Math.max(Math.min(input, high), low);
},
randInt:function(from, to) {
return Math.round(this.map(Math.random(), 0, 1, from, to));
}
}