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Fix #20008: Crash in PaintRotoDropTowerSection

This commit is contained in:
Hielke Morsink 2023-04-22 19:59:30 +02:00
parent c88fe4d2d2
commit 5ade3e704c
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GPG Key ID: FE0B343DF883E7F2
1 changed files with 7 additions and 5 deletions
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12
src/openrct2/ride/thrill/RotoDrop.cpp
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@ -185,14 +185,16 @@ static void PaintRotoDropTowerSection(
auto imageId = session.TrackColours[SCHEME_TRACK].WithIndex(SPR_ROTO_DROP_TOWER_SEGMENT);
PaintAddImageAsParent(session, imageId, { 0, 0, height }, { { 8, 8, height }, { 2, 2, 30 } });
const TileElement* nextTileElement = reinterpret_cast<const TileElement*>(&trackElement) + 1;
while (nextTileElement->GetType() != TileElementType::Track && !nextTileElement->IsLastForTile())
// The top segment of the Roto drop is only drawn when there is no tile element right above it
bool paintTopSegment = true;
const auto* tileElement = trackElement.as<TileElement>();
while (paintTopSegment && !tileElement->IsLastForTile())
{
nextTileElement++;
tileElement++;
paintTopSegment = trackElement.GetClearanceZ() != tileElement->GetBaseZ();
}
if (trackElement.IsLastForTile() || trackElement.GetClearanceZ() != nextTileElement->GetBaseZ())
if (paintTopSegment)
{
imageId = session.TrackColours[SCHEME_TRACK].WithIndex(SPR_ROTO_DROP_TOWER_SEGMENT_TOP);
PaintAddImageAsChild(session, imageId, { 0, 0, height }, { { 8, 8, height }, { 2, 2, 30 } });