diff options
| -rw-r--r-- | Expand-tilesets-from-192-to-255-tiles.md | 82 |
1 files changed, 45 insertions, 37 deletions
diff --git a/Expand-tilesets-from-192-to-255-tiles.md b/Expand-tilesets-from-192-to-255-tiles.md index 57aafc5..286964c 100644 --- a/Expand-tilesets-from-192-to-255-tiles.md +++ b/Expand-tilesets-from-192-to-255-tiles.md @@ -17,6 +17,7 @@ It's fairly simple to use $E0 to $FF for 32 more map tiles. We can also use $60 6. [Delete the unused font graphics](#6-delete-the-unused-font-graphics) 7. [Update the character set](#7-update-the-character-set) 8. [Change some hard-coded tile placements](#8-change-some-hard-coded-tile-placements) +9. [Correct other implicit assumptions about tiles](#9-correct-other-implicit-assumptions-about-tiles) ## 1. Load tile graphics into $60–$7F and $E0–$FF @@ -460,22 +461,26 @@ Edit [charmap.asm](../blob/master/charmap.asm): ## 8. Change some hard-coded tile placements -Edit [engine/pokemon/correct_nick_errors.asm](../blob/master/engine/pokemon/correct_nick_errors.asm): +Some parts of the code use "<code>vTiles2 tile <i>N</i></code>" to hard-code the data for a tile from $00 to $7F. When such a tile is moved to the range $80–$FF, the offset is invalid, so it has to become "<code>vTiles0 tile <i>N</i></code>". (If it's unclear to you why, take a look at the VRAM screenshot again, noting that `Tiles0` is the top-left sixth, `vTiles1` is the middle-left, and `vTiles2` is the bottom-left, with all three being sequential in memory.) + +Edit [engine/menus/naming_screen.asm](../blob/master/engine/menus/naming_screen.asm): ```diff - .textcommands ; 66cf - ; table defining which characters are actually text commands - ; format: - ; ≥ < - db TX_START, TX_BOX + 1 - db "<PLAY_G>", "<JP_18>" + 1 - db "<NI>", "<NO>" + 1 - db "<ROUTE>", "<GREEN>" + 1 - db "<ENEMY>", "<ENEMY>" + 1 - db "<MOM>", "<TM>" + 1 -- db "<ROCKET>", "┘" + 1 -+ db "<ROCKET>", " " - db -1 ; end +-NAMINGSCREEN_BORDER EQUS "\"■\"" ; $60 ++NAMINGSCREEN_BORDER EQUS "\"■\"" ; $d7 + NAMINGSCREEN_MIDDLELINE EQUS "\"→\"" ; $eb +-NAMINGSCREEN_UNDERLINE EQUS "\"<DOT>\"" ; $f2 ++NAMINGSCREEN_UNDERLINE EQUS "\"☎\"" ; $d9 + + LoadNamingScreenGFX: ; 11c51 + ... + +- ld de, vTiles2 tile NAMINGSCREEN_BORDER ++ ld de, vTiles0 tile NAMINGSCREEN_BORDER + ld hl, NamingScreenGFX_Border + ld bc, 1 tiles + ld a, BANK(NamingScreenGFX_Border) + call FarCopyBytes ``` Edit [engine/events/map_name_sign.asm](../blob/master/engine/events/map_name_sign.asm): @@ -496,26 +501,6 @@ Edit [engine/events/map_name_sign.asm](../blob/master/engine/events/map_name_sig ; b80d3 ``` -Edit [engine/menus/naming_screen.asm](../blob/master/engine/menus/naming_screen.asm): - -```diff --NAMINGSCREEN_BORDER EQUS "\"■\"" ; $60 -+NAMINGSCREEN_BORDER EQUS "\"■\"" ; $d7 - NAMINGSCREEN_MIDDLELINE EQUS "\"→\"" ; $eb --NAMINGSCREEN_UNDERLINE EQUS "\"<DOT>\"" ; $f2 -+NAMINGSCREEN_UNDERLINE EQUS "\"☎\"" ; $d9 - - LoadNamingScreenGFX: ; 11c51 - ... - -- ld de, vTiles2 tile NAMINGSCREEN_BORDER -+ ld de, vTiles0 tile NAMINGSCREEN_BORDER - ld hl, NamingScreenGFX_Border - ld bc, 1 tiles - ld a, BANK(NamingScreenGFX_Border) - call FarCopyBytes -``` - Edit [engine/events/magikarp.asm](../blob/master/engine/events/magikarp.asm): ```diff @@ -552,7 +537,28 @@ Edit [engine/events/halloffame.asm](../blob/master/engine/events/halloffame.asm) ... ``` -And edit [engine/link/link_2.asm](../blob/master/engine/link/link_2.asm): + +## 9. Correct other implicit assumptions about tiles + +Edit [engine/pokemon/correct_nick_errors.asm](../blob/master/engine/pokemon/correct_nick_errors.asm): + +```diff + .textcommands ; 66cf + ; table defining which characters are actually text commands + ; format: + ; ≥ < + db TX_START, TX_BOX + 1 + db "<PLAY_G>", "<JP_18>" + 1 + db "<NI>", "<NO>" + 1 + db "<ROUTE>", "<GREEN>" + 1 + db "<ENEMY>", "<ENEMY>" + 1 + db "<MOM>", "<TM>" + 1 +- db "<ROCKET>", "┘" + 1 ++ db "<ROCKET>", " " + db -1 ; end +``` + +And edit [engine/link/link_2.asm](../blob/master/engine/link/link_2.asm) (this was already done for pokecrystal as of July 2018): ```diff LinkTextbox2: ; 4d35b @@ -608,12 +614,14 @@ Now the game will work just like before:  -...except the VRAM now looks something like this, with 63 more tiles available to use for maps: +…except the VRAM now looks something like this, with 63 more tiles available to use for maps:  -Furthermore, Polished Map with the 256 Tiles option checked will correctly load, edit, and save the enlarged tilesets: +Furthermore, [Polished Map](https://github.com/Rangi42/polished-map) (with the **256 Tiles** option checked) will correctly load, edit, and save the enlarged tilesets:  Remember, tile $7F is reserved for the space character, so don't use it for a map tile. + +This entire change is compatible with [adding `PRIORITY` colors so NPCs can walk behind tiles](Allow-map-tiles-to-appear-above-sprites-\(so-NPCs-can-walk-behind-tiles\)-with-PRIORITY-colors); in [step 3](#3-update-the-tilesets-palette-maps-to-not-skip-607f), you'll just be removing a `rept 32` instead of a `rept 16`. |