| 1 | <!DOCTYPE html>
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| 2 | <html>
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| 3 | <head>
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| 4 | <meta charset="UTF-8">
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| 5 | <title>Space</title>
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| 6 | <link rel="stylesheet" href="../css/style.css">
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| 7 | <script type="text/javascript" src="../../dist/paper.js"></script>
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| 8 | <script type="text/paperscript" canvas="canvas">
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| 9 | // The amount of symbol we want to place;
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| 10 | var count = 150;
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| 11 |
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| 12 | // Create a symbol, which we will use to place instances of later:
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| 13 | var path = new Path.Circle(new Point(0, 0), 5);
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| 14 | path.style = {
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| 15 | fillColor: 'white',
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| 16 | strokeColor: 'black'
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| 17 | };
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| 18 |
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| 19 | var symbol = new Symbol(path);
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| 20 |
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| 21 | // Place the instances of the symbol:
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| 22 | for (var i = 0; i < count; i++) {
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| 23 | // The center position is a random point in the view:
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| 24 | var center = Point.random() * view.size;
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| 25 | var placed = symbol.place(center);
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| 26 | placed.scale(i / count);
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| 27 | placed.data = {};
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| 28 | placed.data.vector = new Point({
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| 29 | angle: Math.random() * 360,
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| 30 | length : (i / count) * Math.random() / 5
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| 31 | });
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| 32 | }
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| 33 |
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| 34 | var vector = new Point({
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| 35 | angle: 45,
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| 36 | length: 0
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| 37 | });
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| 38 |
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| 39 | var mouseVector = vector.clone();
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| 40 |
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| 41 | function onMouseMove(event) {
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| 42 | mouseVector = view.center - event.point;
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| 43 | }
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| 44 |
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| 45 | // The onFrame function is called up to 60 times a second:
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| 46 | function onFrame(event) {
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| 47 | vector = vector + (mouseVector - vector) / 30;
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| 48 |
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| 49 | // Run through the active layer's children list and change
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| 50 | // the position of the placed symbols:
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| 51 | for (var i = 0; i < count; i++) {
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| 52 | var item = project.activeLayer.children[i];
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| 53 | var size = item.bounds.size;
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| 54 | var length = vector.length / 10 * size.width / 10;
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| 55 | item.position += vector.normalize(length) + item.data.vector;
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| 56 | keepInView(item);
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| 57 | }
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| 58 | }
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| 59 |
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| 60 | function keepInView(item) {
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| 61 | var position = item.position;
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| 62 | var itemBounds = item.bounds;
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| 63 | var bounds = view.bounds;
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| 64 | if (itemBounds.left > bounds.width) {
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| 65 | position.x = -item.bounds.width;
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| 66 | }
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| 67 |
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| 68 | if (position.x < -itemBounds.width) {
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| 69 | position.x = bounds.width + itemBounds.width;
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| 70 | }
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| 71 |
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| 72 | if (itemBounds.top > view.size.height) {
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| 73 | position.y = -itemBounds.height;
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| 74 | }
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| 75 |
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| 76 | if (position.y < -itemBounds.height) {
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| 77 | position.y = bounds.height + itemBounds.height / 2;
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| 78 | }
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| 79 | }
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| 80 | </script>
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| 81 | </head>
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| 82 | <body>
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| 83 | <canvas id="canvas" resize hidpi="off" style="background:black"></canvas>
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| 84 | </body>
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| 85 | </html> |
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