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script to swap the positions of n layers?
hello!
I have a small issue with a need, but I don’t quite know which of these two options would be more efficient.
I have a series of layers (which may vary and which are actually comps) . Each one is in a fixed position. I need that with each execution of a script, the layers change between their positions, randomly and without repetitions.
As possibility A, a script that makes random swap between positions given a number n of layers.
As possibility B, to randomly replace each layer by selecting the layers and at the same time the compositions in the bin, making a multiple and random replacement on each script execution
Exploring the possibilities of option A, I have found this script https://gist.github.com/ff6347/3468163 that works perfectly between 2 layers, but I don’t know how to adapt it to work on a selection of layers.
That script says:var layers = app.project.activeItem.selectedLayers;
var pos1, pos2; for (var i = 0; i < 2; i++){ if(i ==0) pos1 = layers[i].position.value; if(i ==1) pos2 = layers[i].position.value; // layers[i].position.selected = true; }; layers[0].position.setValue(pos2); layers[1].position.setValue(pos1);If anyone can shed some light I would greatly appreciate it.
Surely if I had done it by hand I would have finished by now and in less time invested than doing fruitless tests, but anything to learn something new! -
2 Replies
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This is a simple example that will take the selected layers and randomly swap their positions. Might give you some ideas, or a place to start:
var myLayers = app.project.activeItem.selectedLayers;
var myPositions = [];
for (var i = 0; i < myLayers.length; i++){
myPositions.push(myLayers[i].property("Position").value);
}
var temp;
var idx;
for (var i = 0; i < myPositions.length; i++){
idx = i + Math.floor(generateRandomNumber()*(myPositions.length-i));
temp = myPositions[i];
myPositions[i] = myPositions[idx];
myPositions[idx] = temp;
}
for (var i = 0; i < myLayers.length; i++){
myLayers[i].property("Position").setValue(myPositions[i]);
}
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this!!! thank you very much!! it’s awesome!
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