diff options
Diffstat (limited to 'SL0P.md')
| -rw-r--r-- | SL0P.md | 19 |
1 files changed, 14 insertions, 5 deletions
@@ -38,7 +38,7 @@ A table-driven cheat menu. Cursor + A to pick, B to back out / close. | **NOWILD** | toggle wild encounters off (shows `ON`) | | **REPEL** | refill repel steps | | **EXPLORE** | a screen-paging overworld camera: each d-pad press smooth-scrolls the next screenful of the world (no walking), gliding across the connected map at each edge. **▲▼◀▶ arrows** show which directions you can move; **A** warps the player onto the tile you're looking at; **B** returns to the menu. | -| **SAVER** | screensaver: EXPLORE on autopilot. Drifts the camera across the overworld on its own (persistent direction, DFS-ish: keeps going, turns when blocked or occasionally at a junction). Arrows and the player/Pikachu sprites are hidden. Any button wakes it back to the menu. | +| **SAVER** | screensaver: EXPLORE on autopilot. Drifts the camera across the overworld on its own — keeps a heading until it hits a bound, then turns onto another open direction. Arrows and the player/Pikachu sprites are hidden. Any button wakes it back to the menu. | Everything is in `engine/slop_menu.asm`. Adding a new entry = add a name to `SlopMenuText`, a `dw Handler` to `SlopMenuHandlers`, and bump `SLOP_MENU_COUNT`. @@ -63,10 +63,19 @@ neighbour (one unavoidable load), or stops if there's no connection. **SAVER** is the same loop with `wSlopSaverDir` set: instead of reading the d-pad, `SlopSaverPickDir` synthesises a direction into the normal dispatch (so it -inherits smooth scroll + edge crossing), keeping a persistent heading and only -turning when blocked or occasionally at a junction (never an immediate U-turn). -Arrows are skipped, and OAM is cleared + frozen right after every `LoadMapData` -so the reloaded player/Pikachu are never drawn. Any real button exits. +inherits smooth scroll + edge crossing), keeping one heading until it's blocked, +then turning onto a random still-open direction (never an immediate U-turn). +"Open" (`SlopValidDirMask`) means >= 2 coords of room that way or a connection to +cross — the >= 2 matters because moves round to even coords and a map's far edge +is always odd, so a plain `coord != max` test would never register the edge and +the wander would freeze one step short of it. Arrows are skipped, and OAM is +cleared + frozen right after every `LoadMapData` so the reloaded player/Pikachu +are never drawn. Any real button exits. + +Crossing a connection applies its alignment offset blindly, so at an edge the +connection doesn't span the camera can land outside the neighbour; `SlopClampCoords` +(run after every entry/cross `LoadMapData`) clamps the coords back into +`[0,maxY] x [0,maxX]` so the view never reads past `wOverworldMap` into garbage. - **Direction arrows** are 4 OBJ sprites in `wShadowOAM` using the font's down/ right glyphs (`$ee`/`$ed`) plus CGB OBJ X/Y-flip for up/left; set |