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minetest-engine-multicraft2
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Stop wasting time in abm - performance improvement 

Unless I'm mistaken, the chunk of code I'm moving there is potentially
executed hundreds of times inside the loop to get the exact same result
every time
mutilcraft-mt53
Ciaran Gultnieks 2014-03-03 18:43:53 +00:00 committed by sapier
parent a4e2198e41
commit db98ef6b45
1 changed files with 23 additions and 23 deletions
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46
src/environment.cpp
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@ -719,6 +719,29 @@ public:
ServerMap *map = &m_env->getServerMap();
// Find out how many objects the block contains
u32 active_object_count = block->m_static_objects.m_active.size();
// Find out how many objects this and all the neighbors contain
u32 active_object_count_wider = 0;
u32 wider_unknown_count = 0;
for(s16 x=-1; x<=1; x++)
for(s16 y=-1; y<=1; y++)
for(s16 z=-1; z<=1; z++)
{
MapBlock *block2 = map->getBlockNoCreateNoEx(
block->getPos() + v3s16(x,y,z));
if(block2==NULL){
wider_unknown_count = 0;
continue;
}
active_object_count_wider +=
block2->m_static_objects.m_active.size()
+ block2->m_static_objects.m_stored.size();
}
// Extrapolate
u32 wider_known_count = 3*3*3 - wider_unknown_count;
active_object_count_wider += wider_unknown_count * active_object_count_wider / wider_known_count;
v3s16 p0;
for(p0.X=0; p0.X<MAP_BLOCKSIZE; p0.X++)
for(p0.Y=0; p0.Y<MAP_BLOCKSIZE; p0.Y++)
@ -762,29 +785,6 @@ public:
}
neighbor_found:
// Find out how many objects the block contains
u32 active_object_count = block->m_static_objects.m_active.size();
// Find out how many objects this and all the neighbors contain
u32 active_object_count_wider = 0;
u32 wider_unknown_count = 0;
for(s16 x=-1; x<=1; x++)
for(s16 y=-1; y<=1; y++)
for(s16 z=-1; z<=1; z++)
{
MapBlock *block2 = map->getBlockNoCreateNoEx(
block->getPos() + v3s16(x,y,z));
if(block2==NULL){
wider_unknown_count = 0;
continue;
}
active_object_count_wider +=
block2->m_static_objects.m_active.size()
+ block2->m_static_objects.m_stored.size();
}
// Extrapolate
u32 wider_known_count = 3*3*3 - wider_unknown_count;
active_object_count_wider += wider_unknown_count * active_object_count_wider / wider_known_count;
// Call all the trigger variations
i->abm->trigger(m_env, p, n);
i->abm->trigger(m_env, p, n,