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Change: Explicitly reserve sprite group types >= 0x80. (#14836)

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The NewGRF spec does not mention that sprite group `type` and the `num-ent1` fields are the same.

Reserve all unrecognised special types in case they are wanted at some point.
This commit is contained in:
Peter Nelson
2025-11-30 09:12:29 +00:00
committed by GitHub
parent 84d89cc802
commit 0600fbe34b
1 changed files with 5 additions and 0 deletions
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5
src/newgrf/newgrf_act2.cpp
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@@ -525,6 +525,11 @@ static void NewSpriteGroup(ByteReader &buf)
/* Neither a variable or randomized sprite group... must be a real group */ /* Neither a variable or randomized sprite group... must be a real group */
default: default:
{ {
if (type >= 0x80) {
GrfMsg(0, "NewSpriteGroup: Reserved group type 0x{:02X}, skipping", type);
return;
}
switch (feature) { switch (feature) {
case GSF_TRAINS: case GSF_TRAINS:
case GSF_ROADVEHICLES: case GSF_ROADVEHICLES: