[Bug]: Error in ClockwiseSweepPolygon _testCollision

[tposney]

What happened?

I call canvas.walls.checkCollision(Ray) and if there are no collisions _testCollision throws an error

What ways of accessing Foundry can you encounter this issue in?

• Native App (Electron)
• Chrome
• Firefox
• Safari
• Other

Reproduction Steps

If there are no collision _testCollision throws an error

let r = new Ray({x:0, y: 0}, {x: 100, y: 100});
canvas.walls.checkCollision(r);

causes

foundry.js:38822 Uncaught TypeError: Cannot read properties of undefined (reading 'type')

The relevant line is

    if ( collisions[0].type === CONST.WALL_SENSE_TYPES.LIMITED ) collisions.shift();

changing it to

    if ( collisions[0]?.type === CONST.WALL_SENSE_TYPES.LIMITED ) collisions.shift();

resolves the problem

What core version are you reporting this for?

Version 10 Testing 1 (build 274)

Relevant log output

foundry.js:38822 Uncaught TypeError: Cannot read properties of undefined (reading 'type')
[No packages detected]
    at ClockwiseSweepPolygon._testCollision (foundry.js:38822:24)
    at ClockwiseSweepPolygon.testCollision (foundry.js:28720:17)
    at WallsLayer.checkCollision (foundry.js:35985:37)
    at <anonymous>:2:14

Bug Checklist

• The issue occurs while all Modules are disabled