CabActivisation() passed DirAbsolute (DirActive * CabActive) as the value of the
"Direction" command, which every receiving vehicle stores as its own DirActive.
Every other sender passes DirActive. With the cab at the rear end (CabActive = -1)
the two have opposite signs, so the other units got their reverser flipped
against the controlling one.
It shows whenever a rear cab is activated after the reverser has been set:
- the AI takes over an occupied cab (TakeControl() calls CabActivisation(true)),
e.g. an EN57 inserted with reardriver and a starting velocity: the motor car
drives the train backwards;
- a vehicle without automatic cab activation (SA134) driven by the AI from the
start: the cab is activated by a driver hint after the reverser is set, and
the two units pull against each other.
Fixes#169.
When the Autorewident function is enabled, the EP fuse switch will no longer automatically engage or disengage if the player is controlling the train. This would happen for example when approaching a station.
TNESt3::GetPF() is a *major* hotspot in simulation state update. The leading cause is the use of typeid (RTTI) which is implemented in the C++ runtime essentially as a string compare. This change eliminates the use of typeid and instead caches statically typed pointers for the few TPrzekladnik subclass objects that need their parameters adjusted in TNESt3::GetPF(). As a bonus some virtual methods on TPrzekladnik can now be removed. Overall this change reduces the TNESt3::GetPF() contribution from about 25% to 16%.
The dumb3d->glm / utilities-simplification refactor replaced the old custom
clamp() (which tolerated Lo>Hi, returning the upper bound) with std::clamp,
where inverted bounds are undefined behaviour. Only a few sites were patched
afterwards, by hand, with std::minmax plumbing (incl. a stray `static` inside
a per-axle loop). Others silently produced wrong results in the AI braking /
acceleration path.
Add a safe_clamp() helper (normalizes inverted bounds) and use it ONLY where
Lo<=Hi cannot be proven at compile time (config min/max pairs, sign-dependent
expressions, container underflow). Sites with constant bounds or [0, x>=0]
keep std::clamp. Remove the manual std::minmax workarounds and rewrite the
damaged-track jolt code value-first.
