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Android: Ignore joystick axis movements in the flat area.

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Now that all inputs are corrected to zero-centered, we can use getFlat()
to ignore movements that are just noise.

This eliminates a lot of drift when the controller is at rest, notably
on the character select screen in Melee.
This commit is contained in:
Mike
2017-11-01 18:29:33 -07:00
parent 6787fcb712
commit 1f81e13d81
1 changed files with 10 additions and 1 deletions
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11
Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/activities/EmulationActivity.java
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@ -735,7 +735,16 @@ public final class EmulationActivity extends AppCompatActivity
int axis = range.getAxis(); int axis = range.getAxis();
float origValue = event.getAxisValue(axis); float origValue = event.getAxisValue(axis);
float value = mControllerMappingHelper.scaleAxis(input, axis, origValue); float value = mControllerMappingHelper.scaleAxis(input, axis, origValue);
NativeLibrary.onGamePadMoveEvent(input.getDescriptor(), axis, value); // If the input is still in the "flat" area, that means it's really zero.
// This is used to compensate for imprecision in joysticks.
if (Math.abs(value) > range.getFlat())
{
NativeLibrary.onGamePadMoveEvent(input.getDescriptor(), axis, value);
}
else
{
NativeLibrary.onGamePadMoveEvent(input.getDescriptor(), axis, 0.0f);
}
} }
return true; return true;