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Fix autoscaler

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This commit is contained in:
schmelczerandras 2020-09-19 17:30:39 +02:00
parent c58728215f
commit 7a7273c2be
2 changed files with 87 additions and 84 deletions
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60
src/helper/autoscaler.ts
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@ -1,60 +0,0 @@
import { Insights } from '../graphics/rendering/insights';
import { clamp } from './clamp';
import { mix } from './mix';
export class Autoscaler {
// can have fractions
private index: number;
constructor(
private setters: { [key: string]: (value: number | boolean) => void },
private targets: Array<{ [key: string]: number | boolean }>,
startingIndex: number,
private scalingOptions: {
additiveIncrease: number;
multiplicativeDecrease: number;
}
) {
this.index = startingIndex;
this.applyScaling();
}
public increase() {
this.index += this.scalingOptions.additiveIncrease;
this.applyScaling();
}
public decrease() {
this.index /= this.scalingOptions.multiplicativeDecrease;
this.applyScaling();
}
private applyScaling() {
this.index = clamp(this.index, 0, this.targets.length - 1);
const floor = Math.floor(this.index);
const fract = this.index - floor;
const previousTarget = this.targets[floor];
const nextTarget =
floor + 1 == this.targets.length ? previousTarget : this.targets[floor + 1];
const result: any = {};
for (const key in this.setters) {
const previous = previousTarget[key];
const next = nextTarget[key];
let current: number | boolean;
if (typeof previous == 'number') {
current = mix(previous, next as number, fract);
} else {
current = next;
}
result[key] = current;
this.setters[key](current);
}
Insights.setValue('quality', result);
}
}