static bool isOccluded(Map *map, v3s16 p0, v3s16 p1, float step, float stepfac,
float start_off, float end_off, u32 needed_count, INodeDefManager *nodemgr)
{
float d0 = (float)BS * p0.getDistanceFrom(p1);
v3s16 u0 = p1 - p0;
v3f uf = v3f(u0.X, u0.Y, u0.Z) * BS;
uf.normalize();
v3f p0f = v3f(p0.X, p0.Y, p0.Z) * BS;
u32 count = 0;
for(float s=start_off; s<d0+end_off; s+=step){
v3f pf = p0f + uf * s;
v3s16 p = floatToInt(pf, BS);
MapNode n = map->getNodeNoEx(p);
bool is_transparent = false;
const ContentFeatures &f = nodemgr->get(n);
if(f.solidness == 0)
is_transparent = (f.visual_solidness != 2);
else
is_transparent = (f.solidness != 2);
if(!is_transparent){
count++;
if(count >= needed_count)
return true;
}
step *= stepfac;
}
return false;
}
static bool isOccluded(Map *map, v3s16 p0, v3s16 p1, float step, float stepfac,
float start_off, float end_off, u32 needed_count, INodeDefManager *nodemgr,
std::unordered_map<v3POS, bool, v3POSHash, v3POSEqual> & occlude_cache)
{
float d0 = (float)BS * p0.getDistanceFrom(p1);
v3s16 u0 = p1 - p0;
v3f uf = v3f(u0.X, u0.Y, u0.Z) * BS;
uf.normalize();
v3f p0f = v3f(p0.X, p0.Y, p0.Z) * BS;
u32 count = 0;
for(float s=start_off; s<d0+end_off; s+=step) {
v3f pf = p0f + uf * s;
v3s16 p = floatToInt(pf, BS);
bool is_transparent = false;
bool cache = true;
if (occlude_cache.count(p)) {
cache = false;
is_transparent = occlude_cache[p];
} else {
MapNode n = map->getNodeTry(p);
if (n.getContent() == CONTENT_IGNORE) {
cache = false;
}
const ContentFeatures &f = nodemgr->get(n);
if(f.solidness == 0)
is_transparent = (f.visual_solidness != 2);
else
is_transparent = (f.solidness != 2);
}
if (cache)
occlude_cache[p] = is_transparent;
if(!is_transparent) {
if(count == needed_count)
return true;
count++;
}
step *= stepfac;
}
return false;
}
//VERY BAD COPYPASTE FROM clientmap.cpp!
static bool isOccluded(Map *map, v3s16 p0, v3s16 p1, float step, float stepfac,
float start_off, float end_off, u32 needed_count, INodeDefManager *nodemgr,
unordered_map_v3POS<bool> & occlude_cache)
{
float d0 = (float)1 * p0.getDistanceFrom(p1);
v3s16 u0 = p1 - p0;
v3f uf = v3f(u0.X, u0.Y, u0.Z);
uf.normalize();
v3f p0f = v3f(p0.X, p0.Y, p0.Z);
u32 count = 0;
for(float s=start_off; s<d0+end_off; s+=step){
v3f pf = p0f + uf * s;
v3s16 p = floatToInt(pf, 1);
bool is_transparent = false;
bool cache = true;
if (occlude_cache.count(p)) {
cache = false;
is_transparent = occlude_cache[p];
} else {
MapNode n = map->getNodeTry(p);
if (!n) {
return true; // ONE DIFFERENCE FROM clientmap.cpp
}
const ContentFeatures &f = nodemgr->get(n);
if(f.solidness == 0)
is_transparent = (f.visual_solidness != 2);
else
is_transparent = (f.solidness != 2);
}
if (cache)
occlude_cache[p] = is_transparent;
if(!is_transparent){
if(count == needed_count)
return true;
count++;
}
step *= stepfac;
}
return false;
}
