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@lachrymaLF
Created Apr 7, 2021
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/* @lachrymaL_F
BPM Grid -> Adobe After Effects
03/25/2020 */
{
function BPMGrid(thisObj) {
function BPMGrid_buildUI(thisObj) {
var mainPanel = (thisObj instanceof Panel) ? thisObj : new Window("palette", "BPM Grid Creator", undefined, {resizable: true, closeButton: true});
res = "group{orientation:'column',\
groupBPM: Group{orientation:'row',\
BPMEntryDesc: StaticText{text:'BPM: '},\
BPMEntry: EditText{text:'120'},\
},\
groupSpacing: Panel{orientation:'row',\
spacingDesc: StaticText{text:'Spacing: '},\
spacingNumer: EditText{text:'1'},\
spacingDivText: StaticText{text:'/'},\
spacingDenom: EditText{text:'4'},\
},\
groupButton: Panel{orientation:'row',\
createButton: Button{text:'Create Grid'},\
},\
}";
mainPanel.grp = mainPanel.add(res);
mainPanel.grp.groupButton.createButton.onClick = function() {
var BPM = posNumParser(Number(mainPanel.grp.groupBPM.BPMEntry.text));
var spacing = posNumParser(Number(mainPanel.grp.groupSpacing.spacingNumer.text)) / posNumParser(Number(mainPanel.grp.groupSpacing.spacingDenom.text));
createGrid(BPM, spacing);
}
mainPanel.layout.layout(true);
return mainPanel;
}
var myScriptPal = BPMGrid_buildUI(thisObj);
if(myScriptPal != null && myScriptPal instanceof Window) {
myScriptPal.center();
myScriptPal.show();
}
}
BPMGrid(this);
}
function posNumParser(inp) {
if (inp !== inp || inp <= 0) {
alert('Please enter valid values!');
throw 'Illegal Inputs!';
}
return inp
}
function createGrid(BPM, spacing) {
app.beginUndoGroup("Create BPM Grid");
var BPMnull = app.project.activeItem.layers.addNull(app.project.activeItem.duration);
BPMnull.name = "BPM Grid";
BPMnull.source.name ="BPM Grid"
var marginBetweenMarkers = (60 / BPM) * spacing;
var finishLine = BPMnull.outPoint;
for (var t = 0; t < finishLine; t = t + marginBetweenMarkers){
BPMnull.Marker.addKey(t);
}
BPMnull.locked = true;
BPMnull.enabled = false;
app.endUndoGroup();
}
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