166 lines
5.5 KiB
JavaScript
166 lines
5.5 KiB
JavaScript
// const { createElement } = require("./react");
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const log = console.log;
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// const log = window.max.outlet;
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const e = React.createElement;
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let lfos = [];
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const MAXLFOS = 20;
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const SHAPETYPES = ["Sine", "SawUp", "SawDown", "Tri", "Square"];
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const PARAMOPTIONS = ["attenuation", "melody_scope"];
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function DropDown(props) {
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return e('select', {type: "number", onChange: props.onChange, value: props.value},
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...props.options.map((item) => Option(item)));
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}
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function ListItem(child){
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return e('li', null, child)
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}
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function NumberBox(props){
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return e('input', {type: "number", onChange: props.onChange, value: props.value}, null);
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}
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function Option(str){
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return e("option", null, str);
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}
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function ControlType(){
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return e('select', {className: 'control-type'}, Option("LFO"));
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}
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function LfoShape(){
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return e('select', {className: 'lfo-shape'}, Option("Sine"), Option("SawUp"), Option("SawDown"), Option("Tri"), Option("Square"));
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}
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function ParamName(){
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return e('select', {className: 'param-name'}, Option("djParam"), Option("melody_scope"));
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}
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function LfoRow(props){
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let content = e('ul', {className: 'lfo-item'},
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ListItem(ControlType()),
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ListItem(DropDown({onChange: props.setShape, value:props.shape, options: SHAPETYPES})),
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ListItem(DropDown({onChange: props.setDjParam, value: props.djParam, options: PARAMOPTIONS})),
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ListItem(e(NumberBox, {onChange:props.setFreq, value:props.freq}, null)),
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ListItem(e(NumberBox, {onChange:props.setAmp, value:props.amp}, null)),
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ListItem(e(NumberBox, {onChange:props.setPhase, value:props.phase}, null)),
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ListItem(e(Button, {text:'+', onClick: props.addLfo}, null)),
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ListItem(e(Button, {text:'-', onClick: props.removeLfo}, null))
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);
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if (props.visible){
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return content
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}
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;
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}
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function Button(props){
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return e('button', {onClick: props.onClick}, props.text);
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}
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function MasterLfoHandler(){
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let initVisArr = Array(MAXLFOS).fill(false);
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initVisArr[0] = true;
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const [visibleArr, setVisibleArr] = React.useState(initVisArr);
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const [shapeArr, setShapeArr] = React.useState(Array(MAXLFOS).fill('Sine'));
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const [djParamArr, setDjParamArr] = React.useState(Array(MAXLFOS).fill('djParam'));
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const [freqArr, setFreqArr] = React.useState(Array(MAXLFOS).fill('1'));
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const [ampArr, setAmpArr] = React.useState(Array(MAXLFOS).fill('1'));
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const [phaseArr, setPhaseArr] = React.useState(Array(MAXLFOS).fill('0'));
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const allArrays = [visibleArr, shapeArr, djParamArr, freqArr, ampArr, phaseArr];
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const allSetters = [setVisibleArr, setShapeArr, setDjParamArr, setFreqArr, setAmpArr, setPhaseArr];
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const blankVals = [true, 'Sine', '1', '1', '0'];
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createParamChanger = (arr, setArr, index) => {
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return (event) => {
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let newArr = arr.slice();
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newArr[index] = event.target.value;
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setArr(newArr);
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log(`${index} ${event.target.value}`);
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}
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}
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log("Rendering")
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let contents = []
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for (var i = 0; i<MAXLFOS; i++){
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let id = i;
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contents.push(
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e(LfoRow, {
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shape: shapeArr[i],
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setShape: createParamChanger(shapeArr, setShapeArr, i),
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djParam: djParamArr[i],
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setDjParam: createParamChanger(djParamArr, setDjParamArr, i),
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freq: freqArr[i],
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setFreq: createParamChanger(freqArr, setFreqArr, i),
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amp: ampArr[i],
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setAmp: createParamChanger(ampArr, setAmpArr, i),
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phase: phaseArr[i],
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setPhase: createParamChanger(phaseArr, setPhaseArr, i),
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visible: visibleArr[i],
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addLfo: () => {
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if (id < MAXLFOS - 1){
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if (visibleArr[id + 1]){
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// need to delete the empty item to make room
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let emptyIndex = visibleArr.findIndex((item) => !item);
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if (emptyIndex != -1){
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log(emptyIndex);
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log(id + 1);
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for (var j = 0; j < allArrays.length; j++){
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let array = allArrays[j];
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console.log(array);
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// remove from all arrays
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array.splice(emptyIndex, 1);
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// add empty item at opened index
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array.splice(id + 1, 0, blankVals[j]);
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allSetters[j](array);
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console.log(array);
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}
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}
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log(allArrays);
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}
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let newArr = visibleArr.slice();
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newArr[id + 1] = true;
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setVisibleArr(newArr);
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}
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},
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removeLfo: () => {
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let newArr = visibleArr.slice();
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newArr[id] = false;
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setVisibleArr(newArr);
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}
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},
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null));
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}
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return e('div', null, ...contents);
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}
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const root = ReactDOM.createRoot(document.getElementById('lfo-container'));
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root.render(e(MasterLfoHandler, null, null)); |