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Correct my claim re: axis bindings in comment and clarify some things

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YoshiRulz 2021-04-05 17:01:22 +10:00
parent 5209bc69a1
commit 9e609271b9
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1 changed files with 5 additions and 3 deletions
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src/BizHawk.Client.Common/Controller.cs
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@ -89,15 +89,17 @@ namespace BizHawk.Client.Common
else value -= deadzone;
value /= 1.0f - deadzone;
// scale by user-set multiplier (which is 0..1, i.e. value can only shrink and is therefore still in -1..1)
// scale by user-set multiplier (which is -2..2, therefore value is now in -2..2)
value *= kvp.Value.Mult;
// -1..1 -> range
// -1..1 -> -A..A (where A is the larger "side" of the range e.g. a range of 0..50, neutral=10 would give A=40, and thus a value in -40..40)
var range = _axisRanges[kvp.Key];
value *= Math.Max(range.Neutral - range.Min, range.Max - range.Neutral);
// shift the midpoint, so a value of 0 becomes range.Neutral (and, assuming >=1x multiplier, all values in range are reachable)
value += range.Neutral;
// finally, constrain to range again in case the original value was unexpectedly large, or the deadzone and scale made it so, or the axis is lopsided
// finally, constrain to range
_axes[kvp.Key] = ((int) value).ConstrainWithin(range.Range);
}
}