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fix crash when copy rule points to outside the rule bounds after a resize

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This commit is contained in:
Crispy 2024-05-06 11:23:14 +02:00
parent 17e8291281
commit 99e5388a46
1 changed files with 6 additions and 1 deletions
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7
petri/src/lib.rs
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@ -418,7 +418,12 @@ impl Dish {
}
}
RuleCellTo::Copy(x, y) => {
let cell = old_state[x + y * variant.width];
let index = x + y * variant.width;
if index >= old_state.len() {
// the copy source is outside the rule bounds
continue;
}
let cell = old_state[index];
if let Some(cell) = cell {
// if the copy source is outside the world, do nothing
self.set_cell(px, py, cell);