From 589c34e30aa30236b13b7f6621808aca581675c3 Mon Sep 17 00:00:00 2001
From: PikalaxALT <pikalaxalt@gmail.com>
Date: Sat, 16 Sep 2017 18:18:34 -0400
Subject: [PATCH] obj_npc_animation_step, npc_apply_anim_looping

---
 asm/field_map_obj.s | 79 ---------------------------------------------
 src/field_map_obj.c | 55 ++++++++++++++++++++++++++++---
 2 files changed, 50 insertions(+), 84 deletions(-)

diff --git a/asm/field_map_obj.s b/asm/field_map_obj.s
index 06c18eb2c5..1c4b5a1456 100755
--- a/asm/field_map_obj.s
+++ b/asm/field_map_obj.s
@@ -5,85 +5,6 @@
 
 	.text
 
-	thumb_func_start npc_apply_anim_looping
-@ void npc_apply_anim_looping(struct npc_state *fieldObject, struct obj *object, u8 anim)
-npc_apply_anim_looping: @ 8092A70
-	push {r4,lr}
-	adds r4, r1, 0
-	lsls r2, 24
-	lsrs r2, 24
-	ldrb r0, [r0, 0x1]
-	lsls r0, 27
-	cmp r0, 0
-	blt _08092AB2
-	adds r0, r4, 0
-	adds r0, 0x2A
-	strb r2, [r0]
-	ldr r0, [r4, 0x8]
-	bl sub_8092A4C
-	adds r1, r4, 0
-	adds r1, 0x2B
-	cmp r0, 0
-	beq _08092AAA
-	ldrb r2, [r1]
-	ldrb r3, [r0, 0x4]
-	cmp r2, r3
-	bne _08092AA0
-	ldrb r0, [r0, 0x7]
-	b _08092AA8
-_08092AA0:
-	ldrb r3, [r0, 0x5]
-	cmp r2, r3
-	bne _08092AAA
-	ldrb r0, [r0, 0x6]
-_08092AA8:
-	strb r0, [r1]
-_08092AAA:
-	ldrb r1, [r1]
-	adds r0, r4, 0
-	bl SeekSpriteAnim
-_08092AB2:
-	pop {r4}
-	pop {r0}
-	bx r0
-	thumb_func_end npc_apply_anim_looping
-
-	thumb_func_start obj_npc_animation_step
-@ void obj_npc_animation_step(struct npc_state *fieldObject, struct obj *object, u8 anim)
-obj_npc_animation_step: @ 8092AB8
-	push {r4,lr}
-	adds r4, r1, 0
-	lsls r2, 24
-	lsrs r2, 24
-	ldrb r0, [r0, 0x1]
-	lsls r0, 27
-	cmp r0, 0
-	blt _08092AF0
-	adds r0, r4, 0
-	adds r0, 0x2A
-	strb r2, [r0]
-	ldr r0, [r4, 0x8]
-	bl sub_8092A4C
-	adds r2, r0, 0
-	cmp r2, 0
-	beq _08092AF0
-	ldrb r1, [r2, 0x5]
-	adds r0, r4, 0
-	adds r0, 0x2B
-	ldrb r0, [r0]
-	ldrb r3, [r2, 0x4]
-	cmp r0, r3
-	bhi _08092AEA
-	ldrb r1, [r2, 0x4]
-_08092AEA:
-	adds r0, r4, 0
-	bl SeekSpriteAnim
-_08092AF0:
-	pop {r4}
-	pop {r0}
-	bx r0
-	thumb_func_end obj_npc_animation_step
-
 	thumb_func_start sub_8092AF8
 sub_8092AF8: @ 8092AF8
 	push {lr}
diff --git a/src/field_map_obj.c b/src/field_map_obj.c
index 7caa6d03d1..f47639a9e2 100755
--- a/src/field_map_obj.c
+++ b/src/field_map_obj.c
@@ -3540,19 +3540,19 @@ dirn2anim(sub_8092A2C, gUnknown_0850DB41)
 dirn2anim(get_run_image_anim_num, gUnknown_0850DB4A)
 
 struct UnkStruct_085094AC {
-    const union AnimCmd **unk00;
-    u8 unk04[4];
+    const union AnimCmd *const *anims;
+    u8 animPos[4];
 };
 
 extern const struct UnkStruct_085094AC gUnknown_085094AC[];
 
-const struct UnkStruct_085094AC *sub_8092A4C(const union AnimCmd **a0)
+static const struct UnkStruct_085094AC *sub_8092A4C(const union AnimCmd *const *anims)
 {
     const struct UnkStruct_085094AC *retval;
 
-    for (retval = gUnknown_085094AC; retval->unk00 != NULL; retval ++)
+    for (retval = gUnknown_085094AC; retval->anims != NULL; retval ++)
     {
-        if (retval->unk00 == a0)
+        if (retval->anims == anims)
         {
             return retval;
         }
@@ -3560,6 +3560,51 @@ const struct UnkStruct_085094AC *sub_8092A4C(const union AnimCmd **a0)
     return NULL;
 }
 
+void npc_apply_anim_looping(struct MapObject *mapObject, struct Sprite *sprite, u8 animNum)
+{
+    const struct UnkStruct_085094AC *unk85094AC;
+
+    if (!mapObject->mapobj_bit_12)
+    {
+        sprite->animNum = animNum;
+        unk85094AC = sub_8092A4C(sprite->anims);
+        if (unk85094AC != NULL)
+        {
+            if (sprite->animCmdIndex == unk85094AC->animPos[0])
+            {
+                sprite->animCmdIndex = unk85094AC->animPos[3];
+            }
+            else if (sprite->animCmdIndex == unk85094AC->animPos[1])
+            {
+                sprite->animCmdIndex = unk85094AC->animPos[2];
+            }
+        }
+        SeekSpriteAnim(sprite, sprite->animCmdIndex);
+    }
+}
+
+void obj_npc_animation_step(struct MapObject *mapObject, struct Sprite *sprite, u8 animNum)
+{
+    const struct UnkStruct_085094AC *unk85094AC;
+
+    if (!mapObject->mapobj_bit_12)
+    {
+        u8 animPos;
+
+        sprite->animNum = animNum;
+        unk85094AC = sub_8092A4C(sprite->anims);
+        if (unk85094AC != NULL)
+        {
+            animPos = unk85094AC->animPos[1];
+            if (sprite->animCmdIndex <= unk85094AC->animPos[0])
+            {
+                animPos = unk85094AC->animPos[0];
+            }
+            SeekSpriteAnim(sprite, animPos);
+        }
+    }
+}
+
 asm(".section .text.get_face_direction_anim_id");
 
 void FieldObjectClearAnimIfSpecialAnimActive(struct MapObject *);