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Reset-based respawn: reuse+heal the mech, not create-a-new-one (task #52)

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The respawn glitches (2 mechs, on-fire respawn, camera-inside, can't-control,
wreck-never-disappears) all traced to one architectural divergence: our respawn
SEVERED playerVehicle on death and CREATED a new mech, leaving the old as a
permanent wreck and building a duplicate viewpoint whose old render tree was
never torn down.

The authentic engine (FUN_0049fb74 + RPPlayer) REUSES the same mech entity: on
respawn Mech::Reset heals it and moves it in place. Implemented faithfully,
adapted to our layout (the 1995 raw offsets map to different 2007 engine fields,
so reset the equivalent named members, not the offsets):
- Mech::Reset (real, was a reposition-only stub): reposition + kill dead-reckon
  (projectedOrigin/projectedVelocity/updateVelocity + our relocated gait
  accumulators) so the replicant stops lerping to the death spot; clear the
  death latch (movementMode=1, graphicAlarm=0); Heal every damage zone
  (new Mech__DamageZone::Heal: full structure, intact skin); DeathReset
  (vtable+0x28) every subsystem; ForceUpdate to broadcast.
- btplayer.cpp: VehicleDead no longer severs playerVehicle; the respawn re-post
  gates on the mech still being dead; DropZoneReply resets the EXISTING mech in
  place (heal+move) instead of creating a new one, then fires the warp. Warp
  moved to the shared placement (initial drop-in + respawn).

Verified 2-node: mech entity ID stays 3:22 across 3 deaths (reused, not a new
3:32); each Reset logs alive=1, 20 zones healed, 33 subsystems reset; A sees ONE
mech (no wreck+new pair). Warp fires each respawn.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
arcattack
2026-07-09 23:13:44 -05:00
co-authored by Claude Opus 4.8
parent efa7aeb683
commit 247e51e1e1
5 changed files with 196 additions and 69 deletions
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game/reconstructed/mechdmg.cpp
+12
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@@ -921,6 +921,18 @@ void
SetGraphicState(gstate); // engine DamageZone::SetGraphicState -> destroyed skin
}
void
Mech__DamageZone::Heal()
{
// Respawn heal: restore this zone to the undamaged/intact state the loader
// builds -- full structure, intact skin, no burning/destroyed flag. The
// authentic Mech::Reset (@0049fb74) heals via each subsystem's
// ResetToInitialState; the zone's structural state is restored here.
damageLevel = StructureMin; // 0.0 -- full structure (this+0x158)
ApplyDamageGraphicState(ExistsGraphicState); // 0 -- intact skin (undo Destroyed/Gone)
SetDamageZoneState(0); // clear burning / vital-destroyed state
}
//#############################################################################
// MechDeathHandler -- @0042a984 / @0042aa2c / @0042a9f4
//#############################################################################