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Fix crash in ungap's route sketcher. If you drag intermediate waypoints

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such that the path is impossible, don't move the waypoint.
This commit is contained in:
Dustin Carlino 2021-12-07 15:25:46 +00:00
parent b45bf869b7
commit 56a42f9f21
1 changed files with 12 additions and 6 deletions
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14
game/src/common/route_sketcher.rs
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@ -299,6 +299,8 @@ impl Route {
return 0;
}
let orig = self.clone();
// Move an existing waypoint?
if let Some(way_idx) = self.waypoints.iter().position(|x| *x == old_i) {
self.waypoints[way_idx] = new_i;
@ -317,12 +319,16 @@ impl Route {
// changed, but eh.
self.full_path.clear();
for pair in self.waypoints.windows(2) {
// TODO If the new change doesn't work, we could revert.
let (_, intersections) = map
.simple_path_btwn_v2(pair[0], pair[1], PathConstraints::Car)
.unwrap();
if let Some((_, intersections)) =
map.simple_path_btwn_v2(pair[0], pair[1], PathConstraints::Car)
{
self.full_path.pop();
self.full_path.extend(intersections);
} else {
// Moving the waypoint broke the path, just revert.
*self = orig;
return full_idx;
}
}
self.idx(new_i).unwrap()
}