| 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>Hit Testing</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 | var values = {
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| 10 | paths: 50,
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| 11 | minPoints: 5,
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| 12 | maxPoints: 15,
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| 13 | minRadius: 30,
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| 14 | maxRadius: 90
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| 15 | };
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| 16 |
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| 17 | var hitOptions = {
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| 18 | segments: true,
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| 19 | stroke: true,
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| 20 | fill: true,
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| 21 | tolerance: 5
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| 22 | };
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| 23 |
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| 24 | createPaths();
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| 25 |
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| 26 | function createPaths() {
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| 27 | var radiusDelta = values.maxRadius - values.minRadius;
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| 28 | var pointsDelta = values.maxPoints - values.minPoints;
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| 29 | for (var i = 0; i < values.paths; i++) {
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| 30 | var radius = values.minRadius + Math.random() * radiusDelta;
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| 31 | var points = values.minPoints + Math.floor(Math.random() * pointsDelta);
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| 32 | var path = createBlob(view.size * Point.random(), radius, points);
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| 33 | var lightness = (Math.random() - 0.5) * 0.4 + 0.4;
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| 34 | var hue = Math.random() * 360;
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| 35 | path.fillColor = { hue: hue, saturation: 1, lightness: lightness };
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| 36 | path.strokeColor = 'black';
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| 37 | };
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| 38 | }
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| 39 |
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| 40 | function createBlob(center, maxRadius, points) {
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| 41 | var path = new Path();
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| 42 | path.closed = true;
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| 43 | for (var i = 0; i < points; i++) {
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| 44 | var delta = new Point({
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| 45 | length: (maxRadius * 0.5) + (Math.random() * maxRadius * 0.5),
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| 46 | angle: (360 / points) * i
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| 47 | });
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| 48 | path.add(center + delta);
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| 49 | }
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| 50 | path.smooth();
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| 51 | return path;
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| 52 | }
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| 53 |
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| 54 | var segment, path;
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| 55 | var movePath = false;
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| 56 | function onMouseDown(event) {
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| 57 | segment = path = null;
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| 58 | var hitResult = project.hitTest(event.point, hitOptions);
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| 59 | if (!hitResult)
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| 60 | return;
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| 61 |
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| 62 | if (event.modifiers.shift) {
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| 63 | if (hitResult.type == 'segment') {
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| 64 | hitResult.segment.remove();
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| 65 | };
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| 66 | return;
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| 67 | }
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| 68 |
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| 69 | if (hitResult) {
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| 70 | path = hitResult.item;
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| 71 | if (hitResult.type == 'segment') {
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| 72 | segment = hitResult.segment;
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| 73 | } else if (hitResult.type == 'stroke') {
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| 74 | var location = hitResult.location;
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| 75 | segment = path.insert(location.index + 1, event.point);
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| 76 | path.smooth();
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| 77 | }
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| 78 | }
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| 79 | movePath = hitResult.type == 'fill';
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| 80 | if (movePath)
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| 81 | project.activeLayer.addChild(hitResult.item);
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| 82 | }
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| 83 |
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| 84 | function onMouseMove(event) {
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| 85 | project.activeLayer.selected = false;
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| 86 | if (event.item)
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| 87 | event.item.selected = true;
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| 88 | }
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| 89 |
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| 90 | function onMouseDrag(event) {
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| 91 | if (segment) {
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| 92 | segment.point = event.point;
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| 93 | path.smooth();
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| 94 | }
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| 95 |
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| 96 | if (movePath)
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| 97 | path.position += event.delta;
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| 98 | }
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| 99 | </script>
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| 100 | </head>
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| 101 | <body>
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| 102 | <canvas id="canvas" resize style="background:black"></canvas>
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| 103 | </body>
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| 104 | </html> |
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