through sub_810D0FC

asm/vs_seeker.s

@@ -5,87 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_810D0D0
-sub_810D0D0: @ 810D0D0
-	push {r4,lr}
-	movs r1, 0
-	ldr r4, _0810D0F4 @ =gSaveBlock1Ptr
-	ldr r3, _0810D0F8 @ =0x0000063a
-	movs r2, 0
-_0810D0DA:
-	ldr r0, [r4]
-	adds r0, r3
-	adds r0, r1
-	strb r2, [r0]
-	adds r0, r1, 0x1
-	lsls r0, 24
-	lsrs r1, r0, 24
-	cmp r1, 0x63
-	bls _0810D0DA
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_0810D0F4: .4byte gSaveBlock1Ptr
-_0810D0F8: .4byte 0x0000063a
-	thumb_func_end sub_810D0D0
-
-	thumb_func_start sub_810D0FC
-sub_810D0FC: @ 810D0FC
-	push {r4,r5,lr}
-	sub sp, 0x4
-	adds r5, r0, 0
-	mov r4, sp
-	adds r4, 0x2
-	mov r0, sp
-	adds r1, r4, 0
-	bl PlayerGetDestCoords
-	mov r1, sp
-	mov r0, sp
-	ldrh r0, [r0]
-	subs r0, 0x7
-	strh r0, [r1]
-	ldrh r0, [r4]
-	subs r0, 0x7
-	strh r0, [r4]
-	mov r0, sp
-	movs r1, 0
-	ldrsh r2, [r0, r1]
-	subs r0, r2, 0x7
-	movs r3, 0x8
-	ldrsh r1, [r5, r3]
-	cmp r0, r1
-	bgt _0810D15A
-	adds r0, r2, 0x7
-	cmp r0, r1
-	blt _0810D15A
-	movs r0, 0
-	ldrsh r1, [r4, r0]
-	subs r0, r1, 0x5
-	movs r3, 0xA
-	ldrsh r2, [r5, r3]
-	cmp r0, r2
-	bgt _0810D15A
-	adds r0, r1, 0x5
-	cmp r0, r2
-	blt _0810D15A
-	ldrb r0, [r5, 0x7]
-	bl sub_810CF04
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _0810D15A
-	movs r0, 0x1
-	b _0810D15C
-_0810D15A:
-	movs r0, 0
-_0810D15C:
-	add sp, 0x4
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	thumb_func_end sub_810D0FC
-
 	thumb_func_start sub_810D164
 sub_810D164: @ 810D164
 	push {r4-r7,lr}

include/vs_seeker.h

@@ -9,8 +9,8 @@ struct VsSeekerSubstruct
     u16 unk_4;
     u8 unk_6;
     u8 unk_7;
-    u16 unk_8;
+    s16 unk_8;
-    u16 unk_a;
+    s16 unk_a;
     u8 unk_c;
 };
 

src/vs_seeker.c

@@ -18,6 +18,7 @@
 #include "battle_setup.h"
 #include "random.h"
 #include "field_map_obj.h"
+#include "field_player_avatar.h"
 #include "vs_seeker.h"
 
 // static types
@@ -973,3 +974,29 @@ bool32 sub_810D0A8(u32 a0)
         return FALSE;
     return TRUE;
 }
+
+void sub_810D0D0(void)
+{
+    u8 i;
+
+    for (i = 0; i < 100; i++)
+        gSaveBlock1Ptr->trainerRematches[i] = 0;
+}
+
+bool8 sub_810D0FC(struct VsSeekerSubstruct * a0)
+{
+    s16 x;
+    s16 y;
+
+    PlayerGetDestCoords(&x, &y);
+    x -= 7;
+    y -= 7;
+
+    if (   x - 7 <= a0->unk_8
+        && x + 7 >= a0->unk_8
+        && y - 5 <= a0->unk_a
+        && y + 5 >= a0->unk_a
+        && sub_810CF04(a0->unk_7) == 1)
+        return TRUE;
+    return FALSE;
+}