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Add ABM required neighbor check

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This commit is contained in:
Perttu Ahola 2011-12-03 18:18:59 +02:00
parent ac56053c74
commit 7d37913ea4
4 changed files with 84 additions and 3 deletions
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36
src/environment.cpp
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@ -565,6 +565,7 @@ struct ActiveABM
{
ActiveBlockModifier *abm;
int chance;
std::set<content_t> required_neighbors;
};
class ABMHandler
@ -602,6 +603,18 @@ public:
aabm.chance = 1.0 / pow((float)1.0/chance, (float)intervals);
if(aabm.chance == 0)
aabm.chance = 1;
// Trigger neighbors
std::set<std::string> required_neighbors_s
= abm->getRequiredNeighbors();
for(std::set<std::string>::iterator
i = required_neighbors_s.begin();
i != required_neighbors_s.end(); i++){
content_t c = ndef->getId(*i);
if(c == CONTENT_IGNORE)
continue;
aabm.required_neighbors.insert(c);
}
// Trigger contents
std::set<std::string> contents_s = abm->getTriggerContents();
for(std::set<std::string>::iterator
i = contents_s.begin(); i != contents_s.end(); i++){
@ -646,6 +659,29 @@ public:
if(myrand() % i->chance != 0)
continue;
// Check neighbors
if(!i->required_neighbors.empty())
{
v3s16 p1;
for(p1.X = p.X-1; p1.X <= p.X+1; p1.X++)
for(p1.Y = p.Y-1; p1.Y <= p.Y+1; p1.Y++)
for(p1.Z = p.Z-1; p1.Z <= p.Z+1; p1.Z++)
{
if(p1 == p)
continue;
MapNode n = map->getNodeNoEx(p1);
content_t c = n.getContent();
std::set<content_t>::const_iterator k;
k = i->required_neighbors.find(c);
if(k != i->required_neighbors.end()){
goto neighbor_found;
}
}
// No required neighbor found
continue;
}
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