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Added smooth method

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This commit is contained in:
Richard Davey 2018-09-06 00:17:07 +01:00
parent b54de56c85
commit d3181b41c5
1 changed files with 13 additions and 25 deletions
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38
src/gameobjects/shape/Polygon.js
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@ -10,6 +10,7 @@ var Earcut = require('../../geom/polygon/Earcut');
var GetAABB = require('../../geom/polygon/GetAABB');
var GeomPolygon = require('../../geom/polygon/Polygon');
var Shape = require('./Shape');
var Smooth = require('../../geom/polygon/Smooth');
/**
* @classdesc
@ -57,6 +58,18 @@ var Polygon = new Class({
this.updateData();
},
smooth: function (iterations)
{
if (iterations === undefined) { iterations = 1; }
for (var i = 0; i < iterations; i++)
{
Smooth(this.data);
}
return this.updateData();
},
updateData: function ()
{
var path = [];
@ -67,35 +80,10 @@ var Polygon = new Class({
path.push(points[i].x, points[i].y);
}
// path = this.smooth(path);
this.pathIndexes = Earcut(path);
this.pathData = path;
return this;
},
smooth: function (path)
{
var n = path.length,
result = [],
i = 0,
resultIndex = 0,
p0x, p0y, p1x, p1y;
for (i; i<n-2; i+=2) {
p0x = path[i];
p0y = path[i+1];
p1x = path[i+2];
p1y = path[i+3];
result[resultIndex++] = 0.75 * p0x + 0.25 * p1x;
result[resultIndex++] = 0.75 * p0y + 0.25 * p1y;
result[resultIndex++] = 0.25 * p0x + 0.75 * p1x;
result[resultIndex++] = 0.25 * p0y + 0.75 * p1y;
}
return result;
}
});