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authorDan Goodliffe <dan@randomdan.homeip.net>2021-02-14 14:52:04 +0000
committerDan Goodliffe <dan@randomdan.homeip.net>2021-02-14 14:52:04 +0000
commit08f6e874a8930899714e2c0d313a9ed9f4eec35c (patch)
treeaccb6a40100dceb2d5aa4d79b2a96a865b3a65d7 /game
parentCode tidy-up (diff)
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Link weak_ptrs
Diffstat (limited to 'game')
-rw-r--r--game/network/link.h3
-rw-r--r--game/network/rail.cpp4
-rw-r--r--game/vehicles/railloco.cpp16
-rw-r--r--game/vehicles/vehicle.h2
4 files changed, 14 insertions, 11 deletions
diff --git a/game/network/link.h b/game/network/link.h
index d4ae4c6..207ecd0 100644
--- a/game/network/link.h
+++ b/game/network/link.h
@@ -28,6 +28,7 @@ using NodePtr = std::shared_ptr<Node>;
// it joins 2 nodes
class Link;
using LinkPtr = std::shared_ptr<Link>;
+using LinkWPtr = std::weak_ptr<const Link>;
class Link {
public:
using End = std::pair<NodePtr, float /*dir*/>;
@@ -41,7 +42,7 @@ public:
std::array<End, 2> ends;
float length;
- using Next = std::pair<LinkPtr, unsigned char /*end*/>;
+ using Next = std::pair<LinkWPtr, unsigned char /*end*/>;
std::array<std::vector<Next>, 2> nexts;
};
diff --git a/game/network/rail.cpp b/game/network/rail.cpp
index 1f3cc01..10dfb88 100644
--- a/game/network/rail.cpp
+++ b/game/network/rail.cpp
@@ -24,8 +24,8 @@ RailLinks::joinLinks(const LinkPtr & l) const
for (const auto oe : {0, 1}) {
for (const auto te : {0, 1}) {
if (l->ends[te].first == ol->ends[oe].first) {
- l->nexts[te].emplace_back(ol.get(), oe);
- ol->nexts[oe].emplace_back(l.get(), te);
+ l->nexts[te].emplace_back(ol, oe);
+ ol->nexts[oe].emplace_back(l, te);
}
}
}
diff --git a/game/vehicles/railloco.cpp b/game/vehicles/railloco.cpp
index 54582c2..d06474c 100644
--- a/game/vehicles/railloco.cpp
+++ b/game/vehicles/railloco.cpp
@@ -12,23 +12,25 @@ void
RailLoco::tick(TickDuration dur)
{
linkDist += dur.count() * speed;
- while (linkDist > link->length) {
- location = link->positionAt(link->length, linkDir);
- const auto & nexts {link->nexts[1 - linkDir]};
+ auto curLink {link.lock()};
+ while (linkDist > curLink->length) {
+ location = curLink->positionAt(curLink->length, linkDir);
+ const auto & nexts {curLink->nexts[1 - linkDir]};
const auto next = std::find_if(nexts.begin(), nexts.end(), [ang = location.GetRot().y](const Link::Next & n) {
- return std::abs(normalize(n.first->ends[n.second].second - ang)) < 0.1F;
+ return std::abs(normalize(n.first.lock()->ends[n.second].second - ang)) < 0.1F;
});
if (next != nexts.end()) {
- linkDist -= link->length;
+ linkDist -= curLink->length;
link = next->first;
+ curLink = link.lock();
linkDir = next->second;
}
else {
- linkDist = link->length;
+ linkDist = curLink->length;
speed = 0;
}
}
- location = link->positionAt(linkDist, linkDir);
+ location = curLink->positionAt(linkDist, linkDir);
}
Brush47::Brush47(const LinkPtr & l) : RailLoco(l, "brush47.obj", "brush47.png") { }
diff --git a/game/vehicles/vehicle.h b/game/vehicles/vehicle.h
index cd2249d..d59588c 100644
--- a/game/vehicles/vehicle.h
+++ b/game/vehicles/vehicle.h
@@ -9,7 +9,7 @@
class Vehicle : public WorldObject, public Physical {
public:
Vehicle(const LinkPtr & link, const std::string & obj, const std::string & tex);
- LinkPtr link; // Which link are we travelling along
+ LinkWPtr link; // Which link are we travelling along
unsigned char linkDir {0}; // Starting end e0->e1 or e1->e0
float linkDist {0}; // distance long current link
float speed {50}; // speed in m/s (~75 km/h)