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Code Issues 157 Wiki Activity

feat(track): frogs and crossings for every rail profile; grooved rails share the floor of their grooves where they cross and need no check rails, the V beside the rail going through is one block where the lofts of the rails overlap; the nose of an acute frog of flat rails is filled between its legs as far as their lofts overlap, like a cast insert

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maj00r
2026-10-13 21:03:17 +02:00
parent 59f1a5a144
commit 9343ebcb13
5 changed files with 387 additions and 56 deletions
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28
world/Track.h
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@@ -315,6 +315,7 @@ public:
int otherside { 0 }; // rail profile of the other rail, 1 right, -1 left
double otherat { 0.0 }; // distance of the crossing along the other path
bool aligned { true }; // both paths run the same way at the crossing
TTrack *owner { nullptr };
};
std::vector<rail_crossing> rail_crossings( bool const Joined = true );
// the size of the rail profile, out from the gauge face: positive outwards, the side of the head away from the track
@@ -323,6 +324,12 @@ public:
double height { 0.172 };
double low { -0.0385 }; // the reach of the profile inwards
double high { 0.1115 }; // the reach of the profile outwards
bool grooved { false };
double groove { 0.0 };
double lip { 0.0 };
double rim { 0.0 };
double crown { 0.0 };
double liptop { 0.0 };
};
rail_size rail_dimensions() const;
// a check rail beside a rail, how far its ends turn away from the running rail
@@ -344,6 +351,9 @@ public:
std::vector<glm::dvec2> endrolled, startrolled; // how far out from the gauge line the wheels roll on the head, of the part coming from below and of the part going on
glm::dvec2 endmiter { 0.0 };
glm::dvec2 startmiter { 0.0 };
std::vector<glm::dvec2> endinner, startinner;
bool endcap { true };
bool startcap { true };
};
struct rail_plan {
std::vector<rail_cut> cuts;
@@ -358,8 +368,25 @@ public:
glm::dvec2 frommiter { 0.0 };
glm::dvec2 tomiter { 0.0 };
};
struct rail_band {
double at { 0.0 };
double into { 0.0 };
double facing { 0.0 };
double from { 0.0 };
double to { 0.0 };
bool whole { true };
};
struct rail_fill {
double from { 0.0 };
double to { 0.0 };
std::vector<glm::dvec2> inner, outer;
bool capfrom { false };
bool capto { false };
};
struct rail_layout {
rail_plan plans[ 2 ][ 2 ]; // path, right side
std::vector<rail_band> bands[ 2 ][ 2 ];
std::vector<rail_fill> fills[ 2 ][ 2 ];
std::vector<guard_rail> guards[ 2 ][ 2 ];
std::vector<glm::dvec2> wingends[ 2 ][ 2 ]; // ends of the wing rails of other rails running along each rail, and which way they run there
check_rail_set checks;
@@ -465,6 +492,7 @@ private:
rail_size size;
float halfwidth { 0.f };
gfx::vertex_array checkshapes[ 2 ];
gfx::vertex_array plates[ 2 ];
};
rail_drawing make_rail_drawing( gfx::geometrybank_handle const &Bank );
// a rail along a path from a distance on, in parts where other rails cross it, and the check rails beside it. false: no crossing, the rail is laid whole as before