match 2 field functions

src/field_effect_helpers.c

@@ -1547,150 +1547,35 @@ void WaitFieldEffectSpriteAnim(struct Sprite *sprite)
         UpdateEventObjectSpriteVisibility(sprite, FALSE);
 }
 
-#ifdef NONMATCHING
-static void sub_81561FC(struct Sprite *sprite /*r6*/, u8 z, u8 offset)
+static void sub_81561FC(struct Sprite *sprite, u8 z, u8 offset)
 {
     u8 i;
-    s16 xlo;
-    s16 xhi;
-    s16 lx;
-    s16 lyhi;
-    s16 ly;
-    s16 ylo;
-    s16 yhi;
-    struct EventObject *eventObject; // r4
-    const struct EventObjectGraphicsInfo *graphicsInfo; // destroyed
-    struct Sprite *linkedSprite; // r5
+    s16 var, xhi, lyhi, yhi, ylo;
+    const struct EventObjectGraphicsInfo *graphicsInfo; // Unused Variable
+    struct Sprite *linkedSprite;
 
     SetObjectSubpriorityByZCoord(z, sprite, offset);
-    for (i = 0; i < 16; i ++)
+    for (i = 0; i < EVENT_OBJECTS_COUNT; i ++)
     {
-        eventObject = &gEventObjects[i];
+        struct EventObject *eventObject = &gEventObjects[i];
         if (eventObject->active)
         {
             graphicsInfo = GetEventObjectGraphicsInfo(eventObject->graphicsId);
             linkedSprite = &gSprites[eventObject->spriteId];
             xhi = sprite->pos1.x + sprite->centerToCornerVecX;
-            xlo = sprite->pos1.x - sprite->centerToCornerVecX;
-            lx = linkedSprite->pos1.x;
-            if (xhi < lx && xlo > lx)
+            var = sprite->pos1.x - sprite->centerToCornerVecX;
+            if (xhi < linkedSprite->pos1.x && var > linkedSprite->pos1.x)
             {
                 lyhi = linkedSprite->pos1.y + linkedSprite->centerToCornerVecY;
-                ly = linkedSprite->pos1.y;
+                var = linkedSprite->pos1.y;
                 ylo = sprite->pos1.y - sprite->centerToCornerVecY;
                 yhi = ylo + linkedSprite->centerToCornerVecY;
-                if ((lyhi < yhi || lyhi < ylo) && ly > yhi)
+                if ((lyhi < yhi || lyhi < ylo) && var > yhi && sprite->subpriority <= linkedSprite->subpriority)
                 {
-                    if (sprite->subpriority <= linkedSprite->subpriority)
-                    {
-                        sprite->subpriority = linkedSprite->subpriority + 2;
-                        break;
-                    }
+                    sprite->subpriority = linkedSprite->subpriority + 2;
+                    break;
                 }
             }
         }
     }
 }
-#else
-NAKED void sub_81561FC(struct Sprite *sprite /*r6*/, u8 z, u8 offset)
-{
-    asm_unified("push {r4-r7,lr}\n\
-    adds r6, r0, 0\n\
-    adds r0, r1, 0\n\
-    lsls r0, 24\n\
-    lsrs r0, 24\n\
-    lsls r2, 24\n\
-    lsrs r2, 24\n\
-    adds r1, r6, 0\n\
-    bl SetObjectSubpriorityByZCoord\n\
-    movs r7, 0\n\
-_08156212:\n\
-    lsls r0, r7, 3\n\
-    adds r0, r7\n\
-    lsls r0, 2\n\
-    ldr r1, =gEventObjects\n\
-    adds r4, r0, r1\n\
-    ldrb r0, [r4]\n\
-    lsls r0, 31\n\
-    cmp r0, 0\n\
-    beq _081562B4\n\
-    ldrb r0, [r4, 0x5]\n\
-    bl GetEventObjectGraphicsInfo\n\
-    ldrb r1, [r4, 0x4]\n\
-    lsls r0, r1, 4\n\
-    adds r0, r1\n\
-    lsls r0, 2\n\
-    ldr r1, =gSprites\n\
-    adds r5, r0, r1\n\
-    adds r0, r6, 0\n\
-    adds r0, 0x28\n\
-    movs r2, 0\n\
-    ldrsb r2, [r0, r2]\n\
-    ldrh r0, [r6, 0x20]\n\
-    adds r1, r0, r2\n\
-    subs r0, r2\n\
-    lsls r0, 16\n\
-    lsrs r4, r0, 16\n\
-    lsls r1, 16\n\
-    asrs r1, 16\n\
-    movs r0, 0x20\n\
-    ldrsh r2, [r5, r0]\n\
-    cmp r1, r2\n\
-    bge _081562B4\n\
-    lsls r0, r4, 16\n\
-    asrs r0, 16\n\
-    cmp r0, r2\n\
-    ble _081562B4\n\
-    adds r0, r5, 0\n\
-    adds r0, 0x29\n\
-    movs r3, 0\n\
-    ldrsb r3, [r0, r3]\n\
-    ldrh r2, [r5, 0x22]\n\
-    adds r2, r3\n\
-    ldrh r4, [r5, 0x22]\n\
-    adds r0, r6, 0\n\
-    adds r0, 0x29\n\
-    movs r1, 0\n\
-    ldrsb r1, [r0, r1]\n\
-    ldrh r0, [r6, 0x22]\n\
-    subs r0, r1\n\
-    lsls r0, 16\n\
-    asrs r0, 16\n\
-    adds r3, r0, r3\n\
-    lsls r2, 16\n\
-    asrs r2, 16\n\
-    lsls r3, 16\n\
-    asrs r3, 16\n\
-    cmp r2, r3\n\
-    blt _0815628C\n\
-    cmp r2, r0\n\
-    bge _081562B4\n\
-_0815628C:\n\
-    lsls r0, r4, 16\n\
-    asrs r0, 16\n\
-    cmp r0, r3\n\
-    ble _081562B4\n\
-    adds r2, r6, 0\n\
-    adds r2, 0x43\n\
-    adds r0, r5, 0\n\
-    adds r0, 0x43\n\
-    ldrb r1, [r0]\n\
-    ldrb r0, [r2]\n\
-    cmp r0, r1\n\
-    bhi _081562B4\n\
-    adds r0, r1, 0x2\n\
-    strb r0, [r2]\n\
-    b _081562BE\n\
-    .pool\n\
-_081562B4:\n\
-    adds r0, r7, 0x1\n\
-    lsls r0, 24\n\
-    lsrs r7, r0, 24\n\
-    cmp r7, 0xF\n\
-    bls _08156212\n\
-_081562BE:\n\
-    pop {r4-r7}\n\
-    pop {r0}\n\
-    bx r0");
-}
-#endif