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| -rw-r--r-- | Add-a-new-battle-transition.md | 104 | ||||
| -rw-r--r-- | Tutorials.md | 1 | ||||
| -rw-r--r-- | screenshots/rocket-battle-transition.png | bin | 0 -> 2762 bytes |
3 files changed, 105 insertions, 0 deletions
diff --git a/Add-a-new-battle-transition.md b/Add-a-new-battle-transition.md new file mode 100644 index 0000000..9117cae --- /dev/null +++ b/Add-a-new-battle-transition.md @@ -0,0 +1,104 @@ +This tutorial is for how to add a new battle transition, like the Poké Ball that covers the screen for a trainer battle. As an example, we'll add an "R" for battles with Team Rocket. + +Simply edit [engine/battle/battle_transition.asm](../blob/master/engine/battle/battle_transition.asm): + +```diff + StartTrainerBattle_LoadPokeBallGraphics: + ... + + call .loadpokeballgfx + ... + + .loadpokeballgfx ++ ld de, TeamRocketTransition + ld a, [wOtherTrainerClass] ++ cp GRUNTM ++ ret z ++ cp GRUNTF ++ ret z ++ cp EXECUTIVEM ++ ret z ++ cp EXECUTIVEF ++ ret z ++ cp SCIENTIST ++ ret z + ld de, PokeBallTransition + ret + + PokeBallTransition: + ; 16x16 overlay of a Poke Ball + pusho + opt b.X ; . = 0, X = 1 + bigdw %......XXXX...... + bigdw %....XXXXXXXX.... + bigdw %..XXXX....XXXX.. + bigdw %..XX........XX.. + bigdw %.XX..........XX. + bigdw %.XX...XXXX...XX. + bigdw %XX...XX..XX...XX + bigdw %XXXXXX....XXXXXX + bigdw %XXXXXX....XXXXXX + bigdw %XX...XX..XX...XX + bigdw %.XX...XXXX...XX. + bigdw %.XX..........XX. + bigdw %..XX........XX.. + bigdw %..XXXX....XXXX.. + bigdw %....XXXXXXXX.... + bigdw %......XXXX...... + popo + ++TeamRocketTransition: ++pusho ++opt b.X ; . = 0, X = 1 ++ bigdw %XXXXXXXXXXXX.... ++ bigdw %XXXXXXXXXXXXXX.. ++ bigdw %XXXXXXXXXXXXXXX. ++ bigdw %XXXXXXXXXXXXXXX. ++ bigdw %XXXXX.....XXXXXX ++ bigdw %XXXXX......XXXXX ++ bigdw %XXXXX.....XXXXXX ++ bigdw %XXXXXXXXXXXXXXX. ++ bigdw %XXXXXXXXXXXXXXX. ++ bigdw %XXXXXXXXXXXXXX.. ++ bigdw %XXXXXXXXXXXXX... ++ bigdw %XXXXX....XXXXX.. ++ bigdw %XXXXX....XXXXX.. ++ bigdw %XXXXX.....XXXXX. ++ bigdw %XXXXX......XXXXX ++ bigdw %XXXXX......XXXXX ++popo +``` + +Older versions of pokecrystal define the `PokeBallTransition` pattern with literal binary numbers: + +``` +PokeBallTransition: + db %00000011, %11000000 + db %00001111, %11110000 + db %00111100, %00111100 + db %00110000, %00001100 + db %01100000, %00000110 + db %01100011, %11000110 + db %11000110, %01100011 + db %11111100, %00111111 + db %11111100, %00111111 + db %11000110, %01100011 + db %01100011, %11000110 + db %01100000, %00000110 + db %00110000, %00001100 + db %00111100, %00111100 + db %00001111, %11110000 + db %00000011, %11000000 +``` + +Either way works, but the new method shows the 16x16 tile pattern more clearly. + +Notice that `StartTrainerBattle_LoadPokeBallGraphics.loadpokeballgfx` already has the line `ld a, [wOtherTrainerClass]` but doesn't do anything with it. Maybe trainer-based patterns like this were a scrapped feature. + +Anyway, that's all it takes to change the overlay pattern: + + + +Changing the transition animations (the ones that fade, wipe, distort, or otherwise erase the screen to begin a battle) is more complicated. + +TODO: new transition animation diff --git a/Tutorials.md b/Tutorials.md index 820d6b0..2875304 100644 --- a/Tutorials.md +++ b/Tutorials.md @@ -29,6 +29,7 @@ Tutorials may use diff syntax to show edits: - [Wild Pokémon slot](Add-a-new-wild-Pokémon-slot) - [Unown form](Add-a-new-Unown-form) - [Fishing rod](Add-a-new-fishing-rod) +- [Battle transition](Add-a-new-battle-transition) **How to edit the…** diff --git a/screenshots/rocket-battle-transition.png b/screenshots/rocket-battle-transition.png Binary files differnew file mode 100644 index 0000000..f917ad2 --- /dev/null +++ b/screenshots/rocket-battle-transition.png |
