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Expose getPointedThing to Lua

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This commit introduces Raycast, a Lua user object, which can be
used to perform a raycast on the map. The ray is continuable, so one can
also get hidden nodes (for example to see trough glass).
This commit is contained in:
Dániel Juhász 2016-07-23 21:11:20 +02:00 • committed by paramat
parent a80ecbee1e
commit 3caad3f3c9
25 changed files with 671 additions and 313 deletions
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46
src/util/pointedthing.cpp
View file

@ -23,20 +23,47 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "../exceptions.h"
#include <sstream>
PointedThing::PointedThing(const v3s16 &under, const v3s16 &above,
const v3s16 &real_under, const v3f &point, const v3s16 &normal,
f32 distSq):
type(POINTEDTHING_NODE),
node_undersurface(under),
node_abovesurface(above),
node_real_undersurface(real_under),
intersection_point(point),
intersection_normal(normal),
distanceSq(distSq)
{}
PointedThing::PointedThing(s16 id, const v3f &point, const v3s16 &normal,
f32 distSq) :
type(POINTEDTHING_OBJECT),
object_id(id),
intersection_point(point),
intersection_normal(normal),
distanceSq(distSq)
{}
std::string PointedThing::dump() const
{
std::ostringstream os(std::ios::binary);
if (type == POINTEDTHING_NOTHING) {
os<<"[nothing]";
} else if (type == POINTEDTHING_NODE) {
switch (type) {
case POINTEDTHING_NOTHING:
os << "[nothing]";
break;
case POINTEDTHING_NODE:
{
const v3s16 &u = node_undersurface;
const v3s16 &a = node_abovesurface;
os<<"[node under="<<u.X<<","<<u.Y<<","<<u.Z
<< " above="<<a.X<<","<<a.Y<<","<<a.Z<<"]";
} else if (type == POINTEDTHING_OBJECT) {
os<<"[object "<<object_id<<"]";
} else {
os<<"[unknown PointedThing]";
os << "[node under=" << u.X << "," << u.Y << "," << u.Z << " above="
<< a.X << "," << a.Y << "," << a.Z << "]";
}
break;
case POINTEDTHING_OBJECT:
os << "[object " << object_id << "]";
break;
default:
os << "[unknown PointedThing]";
}
return os.str();
}
@ -104,4 +131,3 @@ bool PointedThing::operator!=(const PointedThing &pt2) const
{
return !(*this == pt2);
}