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authorparamat <mat.gregory@virginmedia.com>2017-02-17 15:50:51 +0000
committerparamat <mat.gregory@virginmedia.com>2017-02-18 22:47:24 +0000
commit111e7e1cc8316e4812e85fddc579feaeedecbb58 (patch)
tree10aadaded479e5d705f64cfa199272c06ee87384 /src
parentd0a6cacd51a25f75b0b2e9133514c7cf40a36805 (diff)
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Voxelmanip: Do not emerge or blit to blocks over map gen limit
Placing a structure that extends into mapblocks that extend past map_gen_limit causes a crash. For example a sapling growing at the world edge which adds leaves beyond the edge, or placing a structure using the lua voxelmanip, or placing a schematic or l-system tree. Do not run the 'load_if_inexistent' block of code if the mapblock is over limit, this also marks the mapblock with the flag VMANIP_BLOCK_DATA_INEXIST which later prevents blitting back those mapblocks. This fix therefore uses existing functionality by having the same effect as the 'load_if_inexistent' bool being false.
Diffstat (limited to 'src')
-rw-r--r--src/map.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/map.cpp b/src/map.cpp
index ffba77262..a415bda96 100644
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -3161,7 +3161,7 @@ void MMVManip::initialEmerge(v3s16 blockpos_min, v3s16 blockpos_max,
if(block_data_inexistent)
{
- if (load_if_inexistent) {
+ if (load_if_inexistent && !blockpos_over_limit(p)) {
ServerMap *svrmap = (ServerMap *)m_map;
block = svrmap->emergeBlock(p, false);
if (block == NULL)