Start decompiling contest_effect

7 files changed, 44 insertions, 87 deletions

diff --git a/asm/contest_effect.s b/asm/contest_effect.s
index 341cb0903..57ff6dfd0 100644
--- a/asm/contest_effect.s
+++ b/asm/contest_effect.s
@@ -5,91 +5,6 @@
 
 	.text
 
-	thumb_func_start AreMovesContestCombo
-AreMovesContestCombo: @ 80B7D24
-	push {r4,lr}
-	sub sp, 0x4
-	lsls r0, 16
-	lsls r1, 16
-	ldr r2, _080B7D78 @ =gContestMoves
-	lsrs r0, 13
-	adds r0, r2
-	ldrb r4, [r0, 0x2]
-	mov r3, sp
-	lsrs r1, 13
-	adds r1, r2
-	ldrb r0, [r1, 0x3]
-	strb r0, [r3]
-	mov r2, sp
-	ldrb r0, [r1, 0x4]
-	strb r0, [r2, 0x1]
-	ldrb r0, [r1, 0x5]
-	strb r0, [r2, 0x2]
-	mov r0, sp
-	ldrb r1, [r1, 0x6]
-	strb r1, [r0, 0x3]
-	cmp r4, 0
-	beq _080B7D80
-	mov r0, sp
-	ldrb r0, [r0]
-	cmp r4, r0
-	beq _080B7D6E
-	mov r0, sp
-	ldrb r0, [r0, 0x1]
-	cmp r4, r0
-	beq _080B7D6E
-	mov r0, sp
-	ldrb r0, [r0, 0x2]
-	cmp r4, r0
-	beq _080B7D6E
-	cmp r4, r1
-	bne _080B7D80
-_080B7D6E:
-	ldr r0, _080B7D7C @ =gComboStarterLookupTable
-	adds r0, r4, r0
-	ldrb r0, [r0]
-	b _080B7D82
-	.align 2, 0
-_080B7D78: .4byte gContestMoves
-_080B7D7C: .4byte gComboStarterLookupTable
-_080B7D80:
-	movs r0, 0
-_080B7D82:
-	add sp, 0x4
-	pop {r4}
-	pop {r1}
-	bx r1
-	thumb_func_end AreMovesContestCombo
-
-	thumb_func_start ContestEffect_00
-ContestEffect_00: @ 80B7D8C
-	bx lr
-	thumb_func_end ContestEffect_00
-
-	thumb_func_start ContestEffect_01
-ContestEffect_01: @ 80B7D90
-	push {lr}
-	ldr r3, _080B7DB8 @ =gSharedMem + 0x192D0
-	ldrb r1, [r3, 0x11]
-	lsls r0, r1, 3
-	subs r0, r1
-	lsls r0, 2
-	adds r1, r3, 0
-	subs r1, 0x70
-	adds r0, r1
-	ldrb r1, [r0, 0x10]
-	movs r2, 0x4
-	orrs r1, r2
-	strb r1, [r0, 0x10]
-	ldrb r0, [r3, 0x11]
-	movs r1, 0
-	bl sub_80B13EC
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080B7DB8: .4byte gSharedMem + 0x192D0
-	thumb_func_end ContestEffect_01
-
 	thumb_func_start ContestEffect_02
 ContestEffect_02: @ 80B7DBC
 	push {lr}
diff --git a/include/contest.h b/include/contest.h
index 557b9e5c4..f8879f8a5 100644
--- a/include/contest.h
+++ b/include/contest.h
@@ -277,5 +277,6 @@ extern u16 gUnknown_02038688[4];
 extern u8 gContestFinalStandings[4];
 extern u8 gUnknown_02038696[4];
 extern u8 gUnknown_0203869B;
+void sub_80B13EC(u8 a, u8 b);
 
 #endif // GUARD_CONTEST_H
diff --git a/include/contest_effect.h b/include/contest_effect.h
new file mode 100644
index 000000000..2840bf106
--- /dev/null
+++ b/include/contest_effect.h
@@ -0,0 +1,6 @@
+#ifndef POKERUBY_GBA_CONTEST_EFFECT_H
+#define POKERUBY_GBA_CONTEST_EFFECT_H
+
+extern bool8 AreMovesContestCombo(u16, u16);
+
+#endif //POKERUBY_GBA_CONTEST_EFFECT_H
diff --git a/ld_script.txt b/ld_script.txt
index 619e06350..2eae4d81c 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -160,6 +160,7 @@ SECTIONS {
         src/script_menu.o(.text);
         src/naming_screen.o(.text);
         src/money.o(.text);
+        src/contest_effect.o(.text);
         asm/contest_effect.o(.text);
         src/record_mixing.o(.text);
         src/debug/sound_check_menu.o(.text);
@@ -594,6 +595,7 @@ SECTIONS {
         src/script_menu.o(.rodata);
         src/naming_screen.o(.rodata);
         src/money.o(.rodata);
+        src/contest_effect.o(.rodata);
         data/contest_effect.o(.rodata);
         src/record_mixing.o(.data);
         src/record_mixing.o(.rodata);
diff --git a/src/contest.c b/src/contest.c
index 84e5d807b..c27844beb 100644
--- a/src/contest.c
+++ b/src/contest.c
@@ -8,6 +8,7 @@
 #include "battle_anim.h"
 #include "blend_palette.h"
 #include "contest.h"
+#include "contest_effect.h"
 #include "contest_link_80C857C.h"
 #include "data2.h"
 #include "decompress.h"
@@ -35,7 +36,6 @@
 
 extern u8 gUnknown_020297ED;
 
-extern u8 AreMovesContestCombo(u16, u16);  // I don't think this is a bool
 extern void sub_80C8A38(u8);
 extern void sub_80C8AD0(u8);
 extern void sub_80C8C80(u8);
diff --git a/src/contest_ai.c b/src/contest_ai.c
index 1e249083b..63894635b 100644
--- a/src/contest_ai.c
+++ b/src/contest_ai.c
@@ -2,9 +2,9 @@
 #include "contest.h"
 #include "random.h"
 #include "contest_ai.h"
+#include "contest_effect.h"
 #include "ewram.h"
 
-extern u8 AreMovesContestCombo(u16, u16);
 extern bool8 sub_80B214C(u8);
 extern bool8 Contest_IsMonsTurnDisabled(u8);
 
diff --git a/src/contest_effect.c b/src/contest_effect.c
new file mode 100644
index 000000000..f1606517b
--- /dev/null
+++ b/src/contest_effect.c
@@ -0,0 +1,33 @@
+#include "global.h"
+#include "ewram.h"
+#include "contest.h"
+
+extern bool8 const gComboStarterLookupTable[];
+
+bool8 AreMovesContestCombo(u16 lastMove, u16 nextMove) {
+    u8 nextMoveComboMoves[4];
+    u8 lastMoveComboStarterId = gContestMoves[lastMove].comboStarterId;
+    nextMoveComboMoves[0] = gContestMoves[nextMove].comboMoves[0];
+    nextMoveComboMoves[1] = gContestMoves[nextMove].comboMoves[1];
+    nextMoveComboMoves[2] = gContestMoves[nextMove].comboMoves[2];
+    nextMoveComboMoves[3] = gContestMoves[nextMove].comboMoves[3];
+
+    if (lastMoveComboStarterId == 0)
+        return 0;
+
+    if (lastMoveComboStarterId == nextMoveComboMoves[0] || lastMoveComboStarterId == nextMoveComboMoves[1] || lastMoveComboStarterId == nextMoveComboMoves[2] || lastMoveComboStarterId == nextMoveComboMoves[3])
+        return gComboStarterLookupTable[lastMoveComboStarterId];
+
+    return 0;
+}
+
+void ContestEffect_00(void)
+{
+}
+
+void ContestEffect_01(void)
+{
+    sContestantStatus[shared192D0.unk11].unk10_2 = TRUE;
+    sub_80B13EC(shared192D0.unk11, 0);
+}
+