lcos_030_build

[remileonard]

Release notes — lcos_030_build (from vr_build_020)

Highlights

• Version bump: project version updated to 0.3.0 (CMakeLists.txt).
• New timing system (desktop + VR): introduced a unified GameTimer abstraction with:
  • Timer base interface (src/engine/timer.h)
  • DesktopTimer with spike smoothing (src/engine/desktoptimer.h)
  • VRTimer with OpenXR predicted timing + frame limiting (src/executables/vrstrike/vrtimer.h)
  • Engine loops now call GameTimer::update() (e.g. GameEngine, debugger)
  • Desktop executables initialize DesktopTimer; VR initializes VRTimer.

VR / OpenXR

• ImGui timing/debug overlay in VR:
  • ImGui context initialization in VRScreen
  • Offscreen rendering of ImGui into an OpenXR swapchain
  • Presented as a quad layer alongside the stereo projection.
• Added missing GL extension proc for glCheckFramebufferStatusEXT and FBO completeness checks.
• More robust OpenXR frame end composition: projection layer + optional ImGui quad layer.

Rendering / UI

• Render-to-texture resolution changed from 800×600 to 128×128 (SCRenderer::initRenderToTexture, viewport + copy).
• Camera zoom support:
  • Camera now has zoom, SetZoom()/GetZoom()
  • perspective calculation uses zoom-adjusted FOV.

HUD / Cockpit improvements (Strike Commander)

• HUD LCOS shapes switched to image sets (RSImageSet) rather than single RLEShape for LCOS_SHAP, enabling richer shape usage.
• Gun pipper / CCIP-like reticle improvements:
  • Refined cannon impact prediction and HUD projection
  • Uses LCOS shapes and draws distance-to-target indicators via shape selection.
• Added MFD camera view rendering:
  • Reads the OpenGL texture, rescales, converts RGBA → VGA palette via LUT, blits into the cockpit MFD.
  • Includes palette LUT builder for faster conversion.
• Virtual cockpit changes:
  • Cleanup routine for cockpit textures to avoid buildup across frames.
  • Slight HUD placement tweak and cannon angular offset adjustment.

Input / Gameplay toggles

New bindings added in GameEngine:

• F10 / F11: SPEC_KEY_1, SPEC_KEY_2
• G: weapon mode toggle (WEAPON_MODE_TOGGLE)
• I: infinite ammo toggle (INFINIT_AMMO_TOGGLE)
• K: single target / assist mode (SINGLE_TARGET_MODE)

In SCStrike:

• Toggle air weapons mode, infinite ammo, single target radar mode, and camera-on-MFD.

Simulation / Physics

• Flight simulation moved to delta-time (dt) driven updates (not SDL tick-derived TPS) in SCJdynPlane.
• Gravity/thrust/speed-of-sound computations updated to scale with dt.
• Added angular velocity tracking for better weapon prediction / trajectory correction.

AI / Mission logic

• Team filtering and friendly-fire avoidance:
  • SCSimulatedObject::CheckCollision ignores same-team hits.
  • SCMissionActors::defendTarget/defendArea logic now iterates all actors and filters by team.
• Ground-attack behavior expanded (weapon selection, range heuristics for bombs, approach logic).
• SCMission::update() early-exits when mission_ended is set.
• Runway entity support:
  • New entity type rnwy
  • Parsing RNWY chunk in RealSpace entity parsing
  • Runway bounding boxes/orientation derived from overlay data during mission load/update/activation.

Core math / utilities

• InvSqrt() now uses 1/sqrtf(x) (replaces the Quake-style fast inverse sqrt code).
• Point2D converted from struct → class with built-in rotate() / rotateAroundPoint().
• Vector2D gained rotateAroundPoint().
• Matrix utilities:
  • Added Matrix::invertRigidBodyMatrixLocal()
  • Added Vector3D::transformPoint(const Matrix&)
  • Removed older inline rotation helper from header.

Parsing / data

• RSArea now stores previously “unknown bytes” for objects into MapObject::unknowns (vector), and debugger displays them.
• PSGameFlowParser opcode name updated: EFECT_OPT_U15 → EFECT_IF_LAST_MISS_SUCCESS, with corresponding handling in SCGameFlow.

Assets

• Added resources/MID_36.IFF.

Tests

• Added new unit tests:
  • tests/MathTests.cpp
  • tests/MatrixTests.cpp
• Updated ByteStreamTests expectations for fixed-float reads and test data.
• Fixed ByteStream::ReadByte() bounds check (> → >=) and ReadFixedFloatBE() integer type.

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This discussion was created from the release lcos_030_build.