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authorRangi <35663410+Rangi42@users.noreply.github.com>2020-07-03 09:38:52 -0400
committerGitHub <noreply@github.com>2020-07-03 09:38:52 -0400
commitc85050497c1bd062e9cd40bf5b32fa3beca366cc (patch)
tree9593ddd3ab820223ab580d5fc0ae133b485b8315 /engine/battle/move_effects/one_hit_ko.asm
parentActually run .travis/webhook.sh (diff)
parentAdd engine/movie/oak_speech/ subdirectory (diff)
downloadpokeyellow-c85050497c1bd062e9cd40bf5b32fa3beca366cc.tar.gz
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Merge pull request #256 from Rangi42/master
Add subdirectories to engine/ similar to pokecrystal
Diffstat (limited to 'engine/battle/move_effects/one_hit_ko.asm')
-rw-r--r--engine/battle/move_effects/one_hit_ko.asm38
1 files changed, 38 insertions, 0 deletions
diff --git a/engine/battle/move_effects/one_hit_ko.asm b/engine/battle/move_effects/one_hit_ko.asm
new file mode 100644
index 00000000..827e2197
--- /dev/null
+++ b/engine/battle/move_effects/one_hit_ko.asm
@@ -0,0 +1,38 @@
+OneHitKOEffect_:
+ ld hl, wDamage
+ xor a
+ ld [hli], a
+ ld [hl], a ; set the damage output to zero
+ dec a
+ ld [wCriticalHitOrOHKO], a
+ ld hl, wBattleMonSpeed + 1
+ ld de, wEnemyMonSpeed + 1
+ ld a, [H_WHOSETURN]
+ and a
+ jr z, .compareSpeed
+ ld hl, wEnemyMonSpeed + 1
+ ld de, wBattleMonSpeed + 1
+.compareSpeed
+; set damage to 65535 and OHKO flag is the user's current speed is higher than the target's
+ ld a, [de]
+ dec de
+ ld b, a
+ ld a, [hld]
+ sub b
+ ld a, [de]
+ ld b, a
+ ld a, [hl]
+ sbc b
+ jr c, .userIsSlower
+ ld hl, wDamage
+ ld a, $ff
+ ld [hli], a
+ ld [hl], a
+ ld a, $2
+ ld [wCriticalHitOrOHKO], a
+ ret
+.userIsSlower
+; keep damage at 0 and set move missed flag if target's current speed is higher instead
+ ld a, $1
+ ld [wMoveMissed], a
+ ret