You simply need to make sure that the actual value update is fired from both callbacks - the knob and the ranges. Move the logic to a separate function and call it from both callbacks.
I've implemented this along with a few comments. Also note how I tried to use arrays wherever possible which heavily simplify the logic.
Content.makeFrontInterface(700, 120);
// Set to true to print the values to the console.
const var DBG = false;
const var simpleGain = Synth.getEffect("SimpleGain");
const var mainKnob = Content.getComponent("MAIN_KNOB");
// Store the button references in an array. This will make it
// more easy to set the currently used range
const var rangeButtons = [Content.getComponent("Range1"),
Content.getComponent("Range2"),
Content.getComponent("Range3")];
// Store the ranges in a globally accessable array
// It is multidimensional which makes the logic pretty easy
const var rangeOptions = [ [[0, 50], [-100, 10], [1, 10]],
[[0, 200], [-10, 30], [100, 300]],
[[0, 100], [-3, 30], [1, 30]] ];
// This will store the currently selected range
reg currentRange = 0;
// Changed the function to take a [min, max] array so
// it's compatible with the new functions below
inline function normalisedToRange(normalisedValue, range)
{
return range[0] + normalisedValue * (range[1] - range[0]);
}
// This function will be called from both the knob callback
// as well the button callbacks to make the module parameters
// stay in sync when you change the range
inline function updateValuesFromCurrentRange()
{
// get the range we're currently using
local rangesToUse = rangeOptions[currentRange];
// grab the current main knob value
local value = mainKnob.getValue();
// get the values for each parameter
// (note how we access the array within the array)
local v1 = normalisedToRange(value, rangesToUse[0]);
local v2 = normalisedToRange(value, rangesToUse[1]);
local v3 = normalisedToRange(value, rangesToUse[2]);
if(DBG)
{
Console.print("v1: " + v1);
Console.print("v2: " + v2);
Console.print("v3: " + v3);
Console.print("----");
}
simpleGain.setAttribute(simpleGain.Width, v1);
simpleGain.setAttribute(simpleGain.Gain, v2);
simpleGain.setAttribute(simpleGain.Delay, v3);
}
inline function setCurrentRange(component, index)
{
// Update the current range variable
// Note how we can use the same callback for every button
// and just set the value by checking the index in the
// component array
currentRange = rangeButtons.indexOf(component);
// Update the actual values when the range changes
updateValuesFromCurrentRange();
}
// set the callback for every button
for(r in rangeButtons)
r.setControlCallback(setCurrentRange);
inline function mainKnobCallback(component, value)
{
// We just call the update method here, since the logic
// has been shifted there.
updateValuesFromCurrentRange();
}
mainKnob.setControlCallback(mainKnobCallback);
Here's the snippet:
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