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authorsfence <sfence.software@gmail.com>2021-06-20 17:21:35 +0200
committerGitHub <noreply@github.com>2021-06-20 17:21:35 +0200
commitb10091be9b6b6c74a170b9444f856f83dd3fe952 (patch)
treec806e74b870be70fafe2323858bbd5bd4071f399 /src/serverenvironment.cpp
parent1805775f3d54043c3b1e75e47b9b85e3b12bab00 (diff)
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Add min_y and max_y checks for Active Block Modifiers (ABM) (#11333)
This check can be used by ABM to reduce CPU usage.
Diffstat (limited to 'src/serverenvironment.cpp')
-rw-r--r--src/serverenvironment.cpp8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/serverenvironment.cpp b/src/serverenvironment.cpp
index 413a785e6..f3711652c 100644
--- a/src/serverenvironment.cpp
+++ b/src/serverenvironment.cpp
@@ -729,6 +729,8 @@ struct ActiveABM
int chance;
std::vector<content_t> required_neighbors;
bool check_required_neighbors; // false if required_neighbors is known to be empty
+ s16 min_y;
+ s16 max_y;
};
class ABMHandler
@@ -773,6 +775,9 @@ public:
} else {
aabm.chance = chance;
}
+ // y limits
+ aabm.min_y = abm->getMinY();
+ aabm.max_y = abm->getMaxY();
// Trigger neighbors
const std::vector<std::string> &required_neighbors_s =
@@ -885,6 +890,9 @@ public:
v3s16 p = p0 + block->getPosRelative();
for (ActiveABM &aabm : *m_aabms[c]) {
+ if ((p.Y < aabm.min_y) || (p.Y > aabm.max_y))
+ continue;
+
if (myrand() % aabm.chance != 0)
continue;