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Don't crash with a negative length in particle definitions

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This commit is contained in:
luk3yx 2022-09-07 20:51:07 +12:00
parent fe5495288e
commit 087a56cf06
1 changed files with 3 additions and 2 deletions
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5
src/tileanimation.cpp
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@ -58,11 +58,12 @@ void TileAnimationParams::deSerialize(std::istream &is, u8 tiledef_version)
if (type == TAT_VERTICAL_FRAMES || tiledef_version <= 2) {
vertical_frames.aspect_w = readU16(is);
vertical_frames.aspect_h = readU16(is);
vertical_frames.length = readF(is, protocol_version);
// Don't hang if a negative length is sent
vertical_frames.length = fabs(readF(is, protocol_version));
} else if (type == TAT_SHEET_2D) {
sheet_2d.frames_w = readU8(is);
sheet_2d.frames_h = readU8(is);
sheet_2d.frame_length = readF(is, protocol_version);
sheet_2d.frame_length = fabs(readF(is, protocol_version));
}
}