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30 行
1.1 KiB
30 行
1.1 KiB
using Unity.UIWidgets.foundation;
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using Unity.UIWidgets.ui;
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using UnityEngine;
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using Canvas = Unity.UIWidgets.ui.Canvas;
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namespace Unity.UIWidgets.painting {
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public static class PaintingUtilities {
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public static void paintZigZag(Canvas canvas, Paint paint, Offset start, Offset end, int zigs, float width) {
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D.assert(MathUtils.isFinite(zigs));
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D.assert(zigs > 0);
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canvas.save();
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canvas.translate(start.dx, start.dy);
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end = end - start;
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canvas.rotate(Mathf.Atan2(end.dy, end.dx));
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float length = end.distance;
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float spacing = length / (zigs * 2.0f);
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Path path = new Path();
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path.moveTo(0.0f, 0.0f);
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for (int index = 0; index < zigs; index += 1) {
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float x = (index * 2.0f + 1.0f) * spacing;
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float y = width * ((index % 2.0f) * 2.0f - 1.0f);
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path.lineTo(x, y);
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}
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path.lineTo(length, 0.0f);
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canvas.drawPath(path, paint);
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canvas.restore();
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}
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}
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}
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