From 874d4959bc28daddb75ddb9c32b706fa3bdb6c34 Mon Sep 17 00:00:00 2001
From: Ryan Dwyer <ryandwyer1@gmail.com>
Date: Tue, 5 Nov 2019 20:47:43 +1000
Subject: [PATCH] Attempt to decompile ai000b

---
 src/game/chr/chraicommands.c   | 61 ++++++++++++++++++++++++++++++++++
 src/include/game/game_000000.h |  1 +
 src/include/gvars/gvars.h      |  3 +-
 src/include/library/library.h  |  2 +-
 src/include/types.h            |  9 ++---
 5 files changed, 70 insertions(+), 6 deletions(-)

diff --git a/src/game/chr/chraicommands.c b/src/game/chr/chraicommands.c
index 452ea528a..eadb12bdc 100644
--- a/src/game/chr/chraicommands.c
+++ b/src/game/chr/chraicommands.c
@@ -455,6 +455,67 @@ glabel ai000b
 /*  f04e3ac:	00001025 */ 	or	$v0,$zero,$zero
 );
 
+// Mismatch because the compiler adds divide-by-zero checks to the division.
+// We need something like -mno-check-zero-division but that option doesn't exist
+// in our version of the compiler.
+//bool ai000b(void)
+//{
+//	u8 *cmd = g_Vars.ailist + g_Vars.aioffset;
+//	u32 anim_id = cmd[3] | (cmd[2] << 8);
+//	struct chrdata *chr = NULL;
+//	s32 startframe = cmd[5] | (cmd[4] << 8);
+//	s32 endframe = cmd[7] | (cmd[6] << 8);
+//	float fstartframe;
+//	float fendframe;
+//
+//	if (g_Vars.chrdata) {
+//		chr = chrFindById(g_Vars.chrdata, cmd[10]);
+//	}
+//
+//	if (startframe == 0xffff) {
+//		fstartframe = 0;
+//	} else if (startframe == 0xfffe) {
+//		fstartframe = func00023768(anim_id) - 1;
+//	} else {
+//		fstartframe = startframe;
+//	}
+//
+//	if (endframe == 0xffff) {
+//		fendframe = -1.0;
+//	} else {
+//		fendframe = endframe;
+//	}
+//
+//	if (chr && chr->unk020) {
+//		float result = 1.0 / cmd[11];
+//
+//		if (g_Vars.in_cutscene) {
+//			if (startframe != 0xfffe) {
+//				fstartframe += var8009de20 * result * 0.25;
+//			}
+//
+//			chr->pos->unk3a = 0;
+//		}
+//
+//		func0f03af44(chr, anim_id, fstartframe, fendframe, cmd[8], cmd[9], result);
+//
+//		if (startframe == 0xfffe) {
+//			func0f0220ec(chr, 1, 1);
+//
+//			if (chr->pos->unk00 == 6) {
+//				u32 playernum = posGetPlayerNum(chr->pos);
+//				struct player *player = g_Vars.players[playernum];
+//				player->unk078 = chr->ground;
+//				player->unk074 = chr->ground;
+//			}
+//		}
+//	}
+//
+//	g_Vars.aioffset += 12;
+//
+//	return false;
+//}
+
 /**
  * @cmd 000c
  */
diff --git a/src/include/game/game_000000.h b/src/include/game/game_000000.h
index 91ffd0a94..6ebee3979 100644
--- a/src/include/game/game_000000.h
+++ b/src/include/game/game_000000.h
@@ -33,5 +33,6 @@ u32 func0f01a348(void);
 u32 func0f01aba8(void);
 u32 func0f01b148(void);
 u32 func0f01b154(void);
+void func0f03af44(struct chrdata *chr, u32 anim_id, float fstartframe, float fendframe, u8 flags, u8 transition, float result);
 
 #endif
diff --git a/src/include/gvars/gvars.h b/src/include/gvars/gvars.h
index 5e1be98a3..706cc4eb2 100644
--- a/src/include/gvars/gvars.h
+++ b/src/include/gvars/gvars.h
@@ -189,7 +189,7 @@ struct g_vars {
 	/*0004c0*/ u32 unk0004c0;
 	/*0004c4*/ u32 unk0004c4;
 	/*0004c8*/ u32 unk0004c8;
-	/*0004cc*/ u32 in_cutscene;
+	/*0004cc*/ s32 in_cutscene;
 	/*0004d0*/ u32 unk0004d0;
 	/*0004d4*/ u32 unk0004d4;
 	/*0004d8*/ u32 unk0004d8;
@@ -355,6 +355,7 @@ extern u32 var80090af8;
 extern u32 var80090afc;
 extern u32 var8009cac0;
 extern u32 var8009cac4;
+extern u32 var8009de20;
 extern u32 var8009de24;
 
 extern u32 g_EepromFlags;
diff --git a/src/include/library/library.h b/src/include/library/library.h
index 6b2008625..5be4afa06 100644
--- a/src/include/library/library.h
+++ b/src/include/library/library.h
@@ -282,7 +282,7 @@ u32 func00023108(void);
 u32 func0002319c(void);
 u32 func00023314(void);
 u32 func0002373c(void);
-u32 func00023768(void);
+s32 func00023768(s16 anim_id);
 u32 func00023794(void);
 u32 func000237dc(void);
 u32 func0002384c(void);
diff --git a/src/include/types.h b/src/include/types.h
index 195b2698d..46d65f649 100644
--- a/src/include/types.h
+++ b/src/include/types.h
@@ -46,7 +46,8 @@ struct position {
 	u32 unk2c;
 	u32 unk30;
 	u32 unk34;
-	u32 unk38;
+	s16 unk38;
+	s16 unk3a;
 	u32 unk3c;
 	u32 unk40;
 };
@@ -121,7 +122,7 @@ struct chrdata {
 	/*0x0ac*/ u32 unk0ac;
 	/*0x0b0*/ u32 sumground;
 	/*0x0b4*/ u32 manground;
-	/*0x0b8*/ u32 ground;
+	/*0x0b8*/ float ground;
 	/*0x0bc*/ struct coord fallspeed;
 	/*0x0c8*/ struct coord prevpos;
 	/*0x0d4*/ u32 lastwalk60;
@@ -501,8 +502,8 @@ struct player {
 	/*0x068*/ u32 unk068;
 	/*0x06c*/ u32 unk06c;
 	/*0x070*/ u32 unk070;
-	/*0x074*/ u32 unk074;
-	/*0x078*/ u32 unk078;
+	/*0x074*/ float unk074;
+	/*0x078*/ float unk078;
 	/*0x07c*/ u32 unk07c;
 	/*0x080*/ u32 unk080;
 	/*0x084*/ u32 unk084;