Non-terminating while loop #62
Description
In an attempt to get around the large mesh issue I was talking about here I watered down the detail of the 3d geometry of the mesh and then split it into six parts resulting in this gltf file. That seems to have helped as I now get stuck further down the pipeline of loading the navmesh, here:
/**
* Returns true if the polygon is convex.
*
* @param {Boolean} ccw - Whether the winding order is CCW or not.
* @return {Boolean} Whether this polygon is convex or not.
*/
convex( ccw = true ) {
let edge = this.edge;
do {
const v1 = edge.tail();
const v2 = edge.head();
const v3 = edge.next.head();
if ( ccw ) {
if ( leftOn( v1, v2, v3 ) === false ) return false;
} else {
if ( leftOn( v3, v2, v1 ) === false ) return false;
}
edge = edge.next;
} while ( edge !== this.edge );
return true;
}
I put a deactivated debugger stopping point inside the do-while block, and let it run until it hit an endless loop cycle, then I was able to pause execution inside this code. From there I ran this snippet:
let arr = []
while (edge && edge.vis2 === undefined) {
arr.push(edge)
edge.vis2 = true
arr.push(edge)
edge = edge.next
}
console.log(arr.length)
console.log(arr.indexOf(this.edge))
The length of the array was 16, and arr.indexOf(this.edge) returns -1, so that proves that the while loop will never terminate.