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Documentation: RAM addresses

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xCrystal 2023-12-27 18:02:28 +01:00
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@ -82,21 +82,36 @@
- **wDieRoll**
- **wSpacesLeft**
- Addresses within *wCurMapData* ~ *wCurMapDataEnd*: preserved on save. Includes:
- Addresses within *wCurMapData* ~ *wCurMapDataEnd*: preserved on save. Initialized when entering a level, and updated accordingly throughout the level. Includes:
- **wCurTurn**
- **wCurSpace**
- **wCurLevelCoins**
- **wCurLevelExp**
- **wCurSpaceStruct**:
- **wCurSpaceXCoord**
- **wCurSpaceYCoord**
- **wCurSpaceEffect** for non-branch spaces, or **wCurSpaceBranchStructPtr** (two bytes) for branch spaces
- **wCurSpaceNextSpace** for non-branch spaces
- Addresses within *wPlayerData* ~ *wPlayerDataEnd*: preserved on save. Includes:
- **wUnlockedLevels**: flag array that tracks progression regarding which levels have been unlocked.
- **wUnlockedTechniques**: flag array that tracks progression regarding which techniques have been unlocked.
- These addresses share memory region with string buffers from *wStringBuffer3* onwards. They are placed in memory in the following order.
- **wTempSpaceStruct**: Temporary scope. Same structure as *wCurSpaceStruct*
- **wTempSpaceBranchStruct**: Temporary scope. The structure is four bytes for next space for each direction (R/L/U/D; -1 if unavailable direction) followed by four bytes for required techniques for each direction (R/L/U/D)
- **wViewMapModeRange**, **wViewMapModeDisplacementY**, **wViewMapModeDisplacementX**: Temporary scope during a Vew Map mode session.
- **wBeforeViewMapYCoord**, **wBeforeViewMapXCoord**, **wBeforeViewMapMapGroup**, **wBeforeViewMapMapNumber**: Temporary scope during a Vew Map mode session. Used to preserve previous player state.
- Addresses for talker events:
- *wSeenTrainer** addresses have been repurposed as **wSeenTrainerOrTalker***
- **wSeenTrainerOrTalkerIsTalker**: added right before *wSeenTrainerOrTalker**.
- **wTempTalker** ~ **wTempTalkerEnd**: allocated to the same address space as *wTempTrainer*. Same scope as *wTempTrainer*, but for talker events.
- Address spaces for backing up the map state (disabled spaces and map objects). Located outside of WRAM banks 0 and 1.
- **wDisabledSpacesBackups**: preserved on save to **sDisabledSpacesBackups**.
- **wMapObjectsBackups**: preserved on save to **sMapObjectsBackups**.
### Overworld workflow
1) ``OverworldLoop`` is called from ``GameMenu_WorldMap`` with either ``hMapEntryMethod`` = ``MAPSETUP_ENTERLEVEL`` or ``hMapEntryMethod`` = ``MAPSETUP_CONTINUE``.