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fix decomp require and improve warning message

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liabru 2021-01-31 21:18:25 +00:00
parent 8ee0ebbfee
commit e87f64a2f3
1 changed files with 27 additions and 6 deletions
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33
src/factory/Bodies.js
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@ -21,6 +21,8 @@ var Vector = require('../geometry/Vector');
(function() {
Bodies._decompWarned = false;
/**
* Creates a new rigid body model with a rectangle hull.
* The options parameter is an object that specifies any properties you wish to override the defaults.
@ -197,10 +199,12 @@ var Vector = require('../geometry/Vector');
* @return {body}
*/
Bodies.fromVertices = function(x, y, vertexSets, options, flagInternal, removeCollinear, minimumArea, removeDuplicatePoints) {
var decomp = require('poly-decomp'),
var decomp,
canDecomp,
body,
parts,
isConvex,
isConcave,
vertices,
i,
j,
@ -208,6 +212,16 @@ var Vector = require('../geometry/Vector');
v,
z;
try {
decomp = require('poly-decomp');
} catch (e) {
// continue without decomp
decomp = null;
}
// check expected decomp module was resolved
canDecomp = Boolean(decomp && decomp.quickDecomp);
options = options || {};
parts = [];
@ -216,10 +230,6 @@ var Vector = require('../geometry/Vector');
minimumArea = typeof minimumArea !== 'undefined' ? minimumArea : 10;
removeDuplicatePoints = typeof removeDuplicatePoints !== 'undefined' ? removeDuplicatePoints : 0.01;
if (!decomp) {
Common.warn('Bodies.fromVertices: poly-decomp.js required. Could not decompose vertices. Fallback to convex hull.');
}
// ensure vertexSets is an array of arrays
if (!Common.isArray(vertexSets[0])) {
vertexSets = [vertexSets];
@ -228,8 +238,19 @@ var Vector = require('../geometry/Vector');
for (v = 0; v < vertexSets.length; v += 1) {
vertices = vertexSets[v];
isConvex = Vertices.isConvex(vertices);
isConcave = !isConvex;
if (isConvex || !decomp) {
if (isConcave && !canDecomp && !Bodies._decompWarned) {
Common.warn(
'Could not resolve the expected \'poly-decomp\' package for concave vertices in \'Bodies.fromVertices\''
);
Common.warn(
'Try \'npm install poly-decomp --save\' or as a global e.g. \'window.decomp\''
);
Bodies._decompWarned = true;
}
if (isConvex || !canDecomp) {
if (isConvex) {
vertices = Vertices.clockwiseSort(vertices);
} else {