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HUD reticle + weapon pips LIVE: dpl2d 2D display-list port (task #35)

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- dpl2d API fully recovered from the binary recorders (@487f34-488630):
  opcode model (points/lines/polyline/circle/color/width/matrix/push-pop),
  CallList = INLINE include (state persists to caller), centered coordinate
  frame (unit = half viewport height). game/reconstructed/dpl2d.cpp rework.
- BTReticleRenderable ctor @004cc40c transcribed with the authentic
  calibration (originX .35, originY .25, scaleY .5, 0..1200m right range
  ladder, bottom heading tape, FUN_004cd938 tick ladders, lock rings,
  turn arrows); range caret slides from the live target range fed by the
  mech4 targeting step (BTSetHudTargetRange).
- Weapon pips: the binary gate is IsDerivedFrom(0x511830 =
  MechWeapon::ClassDerivations) [T1: part_014.c:5386 hard-aborts on missing
  weapon attrs; part_012 counts + roster ORs capabilityFlags@+0x334] so ALL
  7 BLH weapons register (3 lasers + 2 PPCs + 2 MissileLaunchers). Pip A
  (lit, authored PipColor) on TargetWithinRange, else dark ring B.
- AddWeapon @004cdac0 store map corrected to the verified order
  (part_014.c:4827-4837); both state attrs are literally named
  "SimulationState" (strings @51d526/51d577) -> weapon simulationState.
- Mech roster this[0x1ef] renamed poweredSubsystems -> weaponRoster
  (0x511830 is MechWeapon, not PoweredSubsystem=0x50f4bc); derivation-tag
  table added to context/decomp-reference.md.
- Draw hook BTDrawReticle after the 3D scene, cockpit view only. Binary
  Execute @004cdcf0 is an un-exported gap -> Draw dynamics [T3], tracked
  in context/open-questions.md with the blx_cop canopy + PNAME pip meshes.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
arcattack
2026-07-08 20:05:44 -05:00
co-authored by Claude Fable 5
parent 1cd8ca1a80
commit 48b17750e5
15 changed files with 593 additions and 109 deletions
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game/reconstructed/mech4.cpp
+8
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@@ -2331,6 +2331,14 @@ void
MECH_TARGET_ENTITY(this) = gEnemyMech; // mech+0x388 (HasActiveTarget gate)
MECH_TARGET_SUBIDX(this) = -1; // mech+0x38c whole-mech target
// feed the HUD's range caret (the reticle's right-ladder pointer)
{
extern void BTSetHudTargetRange(Scalar range);
float hddx = enemyPos.x - localOrigin.linearPosition.x;
float hddz = enemyPos.z - localOrigin.linearPosition.z;
BTSetHudTargetRange((Scalar)sqrtf(hddx*hddx + hddz*hddz));
}
float ddx = enemyPos.x - localOrigin.linearPosition.x;
float ddy = enemyPos.y - localOrigin.linearPosition.y;
float ddz = enemyPos.z - localOrigin.linearPosition.z;