Data part of Implementation CVEP #239
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Files Modified: | File | Changes | |-----------------------------|--------------------------------------------------------------------------| | messages.properties | Added 2 i18n keys: hullBreach, crewExited | | TWDamageManager.java | Added import, replaced hardcoded "hull breach" with Messages.getString() | | TWGameManager.java | Replaced hardcoded "crew exited" with Messages.getString() | | CombatVehicleEscapePod.java | Closed 3 <p> tags in class JavaDoc | Unstaged Changes Ready: megamek/resources/megamek/client/messages.properties megamek/src/megamek/client/ui/util/EntityWreckHelper.java megamek/src/megamek/common/units/CombatVehicleEscapePod.java megamek/src/megamek/server/totalWarfare/TWDamageManager.java megamek/src/megamek/server/totalWarfare/TWGameManager.java Also Ready (mm-data branch): - Branch: Add-CVEP-wreck-entry - Staged: data/images/units/wrecks/wreckset.txt with Life Boat entry
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## Summary Implements the Combat Vehicle Escape Pod (CVEP) system per Tactical Operations: Advanced Units & Equipment p.121. **Key Features:** - Combat vehicles with CVEP can launch escape pod during Movement Phase - Player selects landing hex in rear arc (0-4 hexes behind vehicle) - Piloting Skill Roll +2 for launch, +2 for landing - Failed rolls injure crew members - Surviving crew land in escape pod entity (Life Boat sprite) - Crew can exit pod as conventional foot infantry (unless in water) - Pod uses unique damage model: breached after >2 cumulative damage - Vehicle is destroyed after pod launch ## Changes ### New Files - `CombatVehicleEscapePod.java` - New entity extending EjectedCrew - `CombatVehicleEscapePodTest.java` - 554 lines of unit tests ### Core Changes - `Tank.java` - Added `hasCombatVehicleEscapePod()`, `hasUndamagedCombatVehicleEscapePod()`, `canLaunchEscapePod()` - `Entity.java` - Added `ETYPE_COMBAT_VEHICLE_ESCAPE_POD` constant - `MiscType.java` - Added `tankSlots = 1` for critical hit vulnerability - `MoveStepType.java` - Added `LAUNCH_ESCAPE_POD` - `MoveStep.java` - Landing coordinate handling ### Server Logic - `TWGameManager.java` - `launchCombatVehicleEscapePod()` and `exitEscapePod()` methods - `TWDamageManager.java` - Special damage handling (2-point breach threshold) - `MovePathHandler.java` - Process escape pod launch move step ### UI - `MovementDisplay.java` - Hex selection UI with rear arc highlighting - `MoveCommand.java` - Added `MOVE_LAUNCH_ESCAPE_POD` - `messages.properties` - UI strings - `report-messages.properties` - 14 game log messages ### Validation - `TestTank.java` already validates CVEP must be in rear location ## Rules Implementation (TO:AUE p.121) | Rule | Status | |------|--------| | Only Combat Vehicles may mount CVEP | ✅ F_TANK_EQUIPMENT flag | | CVEP treated as weapon item in rear | ✅ tankSlots = 1, rear location enforced | | Can be damaged by critical hits | ✅ Hittable slot in rear | | Launch during Movement Phase | ✅ Via button/hex selection | | PSR +2 for launch | ✅ In launchCombatVehicleEscapePod() | | Pod travels up to 4 hexes behind | ✅ Rear arc hex selection | | Landing roll +2 | ✅ In launchCombatVehicleEscapePod() | | Failed rolls = crew injury | ✅ Decrements surviving crew | | Crew as conventional foot infantry | ✅ Can exit pod as EjectedCrew | | Pod breached after >2 damage | ✅ BREACH_THRESHOLD = 2 | | Vehicle destroyed after launch | ✅ destroyEntity() called | ## Test Plan - [x] Unit tests pass (29 tests in CombatVehicleEscapePodTest) - [x] Manual test: Equip vehicle with CVEP in MegaMekLab - [x] Manual test: Launch pod during game, verify hex selection - [x] Manual test: Verify pod appears with Life Boat sprite - [x] Manual test: Exit pod as infantry - [x] Manual test: Attack pod, verify breach at 3+ damage - [x] Manual test: Critical hit to rear damages CVEP ## Known Limitations 1. **Crew injury tracking**: Currently decrements crew count rather than applying specific damage to individual crew members. TODO comment notes MekHQ coordination needed for campaign continuity. ## Screenshots [Add screenshots of hex selection UI and game log output] <img width="304" height="354" alt="image" src="https://github.com/user-attachments/assets/27a9e2f9-845f-4804-8a80-1ad149327285" /><img width="400" height="455" alt="image" src="https://github.com/user-attachments/assets/1e779e61-c1f2-442a-9795-aa66d1f3a25d" /> <img width="403" height="383" alt="image" src="https://github.com/user-attachments/assets/19bc0690-9a08-4997-ad14-746db23c5e81" /><img width="707" height="391" alt="image" src="https://github.com/user-attachments/assets/18c3eeab-4bca-42d9-bf69-a5cdc90dd5f6" /> <img width="476" height="406" alt="image" src="https://github.com/user-attachments/assets/849e1804-1ec4-4c1a-8432-d360fca49336" /> Requires MegaMek/mm-data#239
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Data part of MegaMek/megamek#7865