claudes_game/docs/session_summaries/2026-02-21-exact-position-burn-execution.md

Session Summary: Exact Position Burn Execution

Date: 2026-02-21

Changes Made

Implemented Option B from previous session's planning: exact position burn execution for true anomaly triggers.

Core Implementation

• Added scheduled_dt field to Maneuver struct
• Modified trigger logic to set scheduled_dt when crossing detected
• Modified execution to propagate spacecraft to exact position before burn
• Added wraparound handling for 2π→0 periapsis crossing
• Added tracking array to prevent double-propagation in same frame

Files Modified

• src/maneuver.h - Added scheduled_dt field
• src/maneuver.cpp - Trigger logic, cleanup
• src/simulation.cpp - Execution logic, tracking
• src/config_loader.cpp - Initialize scheduled_dt
• tests/test_periapsis_burn.cpp - Fixed tests
• tests/test_periapsis_burn.toml - Fixed config
• tests/test_maneuver_planning.cpp - Increased timeout
• docs/planning/exact_position_burn_execution.md - Planning doc

Commits

680a8f4 Implement exact position burn execution for true anomaly triggers

Results

• Net line count: +146 lines (207 additions, 61 deletions)
• All 143 tests passing
• Burns now execute at exact orbital position (within floating-point precision)

Remaining Issues

None - all tests passing, implementation complete.

Next Steps

Consider updating technical_reference.md to document the new scheduled_dt field in the Maneuver struct.