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Balance lab: charts of curves and distributions, and sliders that redraw them #15
Description
Goal
Make the balance lab show what the numbers do, and let a designer move them: charts of the curves and distributions, and sliders on the content's coefficients that redraw the charts as they move.
Scope
- Charts over what the interface already reports:
- the experience a level takes, over every level up to the cap (the progression curve);
- the share of each rarity;
- items per defeat and affixes per item (distributions);
- each affix's value spread (min, median, p90, p99, max) within its range.
- Sliders for the coefficients a designer tunes: drop chance and count, rarity weights, affix weights and value ranges, and the progression curve's parameters and cap. Moving one updates the content, re-validates it, re-runs the measurement and redraws.
- Live enough to tune by feel: the redraw follows the slider without freezing the page; a smaller number of trials is used while dragging, the full number when it stops.
- The content spec stays the one source: the sliders edit it, the text view shows the same spec, and an invalid value shows its issue instead of a chart.
Rules
| Rule | Owner |
|---|---|
every number on a chart comes from the interface (measureLoot, measureProgression); the page computes no mechanics |
the page |
| one axis per chart; values of different scales are not drawn on one axis | each chart |
| a slider writes the content spec; the spec is what is measured | the page |
Done when
- The sample content shows all the charts, and moving any slider redraws them.
- The charts follow the accessibility basics: a legend or direct labels where there are several series, a hover readout, a table view, light and dark.
just checkis green, including type checks of the page and tests of the chart data functions.
Out of scope
Running the measurement in a Web Worker (unless the measured redraw time needs it), comparing two contents side by side, saving tuned contents, the game itself.
Activity