i am useless

1 files changed, 368 insertions, 0 deletions

diff --git a/src/shop.c b/src/shop.c
index 5cc1f276e..b832b5a26 100644
--- a/src/shop.c
+++ b/src/shop.c
@@ -16,6 +16,7 @@
 #include "task.h"
 #include "tv.h"
 #include "unknown_task.h"
+#include "field_map_obj.h"
 
 struct UnknownShopStruct
 {
@@ -349,3 +350,370 @@ void sub_80B33D0(s16 var1, int var2, u16 *var3)
     BuyMenuDrawMapMetatileLayer(gBGTilemapBuffers[3], offset1, offset2, var3);
     BuyMenuDrawMapMetatileLayer(gBGTilemapBuffers[2], offset1, offset2, var3 + 4);
 }
+
+// no. for loop too hard.
+__attribute__((naked))
+void sub_80B3420() // dont know args
+{
+	asm(".syntax unified\n\
+	push {r4-r7,lr}\n\
+	mov r7, r10\n\
+	mov r6, r9\n\
+	mov r5, r8\n\
+	push {r5-r7}\n\
+	sub sp, 0x4\n\
+	mov r4, sp\n\
+	adds r4, 0x2\n\
+	mov r0, sp\n\
+	adds r1, r4, 0\n\
+	bl GetXYCoordsOneStepInFrontOfPlayer\n\
+	mov r1, sp\n\
+	mov r0, sp\n\
+	ldrh r0, [r0]\n\
+	subs r0, 0x3\n\
+	strh r0, [r1]\n\
+	ldrh r0, [r4]\n\
+	subs r0, 0x3\n\
+	strh r0, [r4]\n\
+	movs r1, 0\n\
+	ldr r0, _080B34A8 @ =0x000001ff\n\
+	mov r10, r0\n\
+	ldr r2, _080B34AC @ =gMapHeader\n\
+	mov r9, r2\n\
+_080B3452:\n\
+	movs r4, 0\n\
+	lsls r1, 16\n\
+	mov r8, r1\n\
+	asrs r7, r1, 16\n\
+_080B345A:\n\
+	mov r0, sp\n\
+	movs r3, 0\n\
+	ldrsh r0, [r0, r3]\n\
+	lsls r4, 16\n\
+	asrs r6, r4, 16\n\
+	adds r0, r6\n\
+	mov r2, sp\n\
+	movs r3, 0x2\n\
+	ldrsh r1, [r2, r3]\n\
+	adds r1, r7\n\
+	bl MapGridGetMetatileIdAt\n\
+	lsls r0, 16\n\
+	lsrs r5, r0, 16\n\
+	cmp r7, 0x5\n\
+	beq _080B34D0\n\
+	cmp r6, 0x6\n\
+	beq _080B34D0\n\
+	mov r0, sp\n\
+	movs r1, 0\n\
+	ldrsh r0, [r0, r1]\n\
+	adds r0, r6\n\
+	mov r2, sp\n\
+	movs r3, 0x2\n\
+	ldrsh r1, [r2, r3]\n\
+	adds r1, r7\n\
+	bl MapGridGetMetatileLayerTypeAt\n\
+	lsls r0, 24\n\
+	lsrs r3, r0, 24\n\
+	cmp r5, r10\n\
+	bhi _080B34B0\n\
+	mov r1, r9\n\
+	ldr r0, [r1]\n\
+	ldr r0, [r0, 0x10]\n\
+	lsls r1, r5, 4\n\
+	ldr r2, [r0, 0xC]\n\
+	adds r2, r1\n\
+	b _080B34C0\n\
+	.align 2, 0\n\
+_080B34A8: .4byte 0x000001ff\n\
+_080B34AC: .4byte gMapHeader\n\
+_080B34B0:\n\
+	mov r2, r9\n\
+	ldr r0, [r2]\n\
+	ldr r1, [r0, 0x14]\n\
+	ldr r2, _080B34CC @ =0xfffffe00\n\
+	adds r0, r5, r2\n\
+	lsls r0, 4\n\
+	ldr r2, [r1, 0xC]\n\
+	adds r2, r0\n\
+_080B34C0:\n\
+	adds r0, r6, 0\n\
+	adds r1, r7, 0\n\
+	bl BuyMenuDrawMapMetatile\n\
+	b _080B3506\n\
+	.align 2, 0\n\
+_080B34CC: .4byte 0xfffffe00\n\
+_080B34D0:\n\
+	cmp r5, r10\n\
+	bhi _080B34EC\n\
+	asrs r0, r4, 16\n\
+	mov r3, r9\n\
+	ldr r1, [r3]\n\
+	ldr r1, [r1, 0x10]\n\
+	lsls r3, r5, 4\n\
+	ldr r2, [r1, 0xC]\n\
+	adds r2, r3\n\
+	mov r3, r8\n\
+	asrs r1, r3, 16\n\
+	bl sub_80B33D0\n\
+	b _080B3506\n\
+_080B34EC:\n\
+	asrs r0, r4, 16\n\
+	mov r2, r9\n\
+	ldr r1, [r2]\n\
+	ldr r2, [r1, 0x14]\n\
+	ldr r3, _080B354C @ =0xfffffe00\n\
+	adds r1, r5, r3\n\
+	lsls r1, 4\n\
+	ldr r2, [r2, 0xC]\n\
+	adds r2, r1\n\
+	mov r3, r8\n\
+	asrs r1, r3, 16\n\
+	bl sub_80B33D0\n\
+_080B3506:\n\
+	cmp r7, 0\n\
+	bne _080B3520\n\
+	asrs r1, r4, 16\n\
+	cmp r1, 0\n\
+	beq _080B3520\n\
+	cmp r1, 0x6\n\
+	beq _080B3520\n\
+	lsls r1, 17\n\
+	asrs r1, 16\n\
+	ldr r0, _080B3550 @ =gBGTilemapBuffers + 0x800\n\
+	movs r2, 0x40\n\
+	bl sub_80B32EC\n\
+_080B3520:\n\
+	movs r1, 0x80\n\
+	lsls r1, 9\n\
+	adds r0, r4, r1\n\
+	lsrs r4, r0, 16\n\
+	asrs r0, 16\n\
+	cmp r0, 0x6\n\
+	ble _080B345A\n\
+	adds r0, r1, 0\n\
+	add r0, r8\n\
+	lsrs r1, r0, 16\n\
+	asrs r0, 16\n\
+	cmp r0, 0x5\n\
+	ble _080B3452\n\
+	add sp, 0x4\n\
+	pop {r3-r5}\n\
+	mov r8, r3\n\
+	mov r9, r4\n\
+	mov r10, r5\n\
+	pop {r4-r7}\n\
+	pop {r0}\n\
+	bx r0\n\
+	.align 2, 0\n\
+_080B354C: .4byte 0xfffffe00\n\
+_080B3550: .4byte gBGTilemapBuffers + 0x800\n\
+	.syntax divided");
+}
+
+void BuyMenuDrawMapGraphics(void)
+{
+    sub_80F9020();
+    sub_80B356C();
+    sub_80B368C();
+    sub_80B3420();
+}
+
+// yet another difficult multi for-loop. No.
+__attribute__((naked))
+void sub_80B356C(void) // PopulateShopViewWindowObjectInfo ?
+{
+	asm(".syntax unified\n\
+	push {r4-r7,lr}\n\
+	mov r7, r10\n\
+	mov r6, r9\n\
+	mov r5, r8\n\
+	push {r5-r7}\n\
+	sub sp, 0x8\n\
+	movs r0, 0\n\
+	mov r8, r0\n\
+	mov r4, sp\n\
+	adds r4, 0x2\n\
+	mov r0, sp\n\
+	adds r1, r4, 0\n\
+	bl GetXYCoordsOneStepInFrontOfPlayer\n\
+	bl PlayerGetZCoord\n\
+	lsls r0, 24\n\
+	lsrs r0, 24\n\
+	str r0, [sp, 0x4]\n\
+	movs r5, 0\n\
+	ldr r2, _080B3674 @ =gUnknown_020386A4\n\
+	movs r1, 0x10\n\
+_080B3598:\n\
+	lsls r0, r5, 3\n\
+	adds r0, r2\n\
+	strh r1, [r0]\n\
+	adds r0, r5, 0x1\n\
+	lsls r0, 24\n\
+	lsrs r5, r0, 24\n\
+	cmp r5, 0xF\n\
+	bls _080B3598\n\
+	movs r5, 0\n\
+	ldr r7, _080B3678 @ =gUnknown_020386AA\n\
+	subs r1, r7, 0x6\n\
+	mov r9, r1\n\
+_080B35B0:\n\
+	movs r4, 0\n\
+	adds r2, r5, 0x1\n\
+	mov r10, r2\n\
+_080B35B6:\n\
+	mov r1, sp\n\
+	ldr r3, _080B367C @ =0x0000fffd\n\
+	adds r0, r3, 0\n\
+	ldrh r1, [r1]\n\
+	adds r0, r1\n\
+	adds r0, r4\n\
+	lsls r0, 16\n\
+	lsrs r0, 16\n\
+	ldr r2, _080B3680 @ =0x0000fffe\n\
+	adds r1, r2, 0\n\
+	mov r3, sp\n\
+	ldrh r3, [r3, 0x2]\n\
+	adds r1, r3\n\
+	adds r1, r5\n\
+	lsls r1, 16\n\
+	lsrs r1, 16\n\
+	ldr r2, [sp, 0x4]\n\
+	bl GetFieldObjectIdByXYZ\n\
+	lsls r0, 24\n\
+	lsrs r2, r0, 24\n\
+	cmp r2, 0x10\n\
+	beq _080B3650\n\
+	mov r0, r8\n\
+	lsls r3, r0, 3\n\
+	mov r1, r9\n\
+	adds r0, r3, r1\n\
+	movs r6, 0\n\
+	strh r2, [r0]\n\
+	mov r0, r9\n\
+	adds r0, 0x2\n\
+	adds r0, r3, r0\n\
+	strh r4, [r0]\n\
+	ldr r1, _080B3684 @ =gUnknown_020386A8\n\
+	adds r0, r3, r1\n\
+	strh r5, [r0]\n\
+	ldr r1, _080B3688 @ =gMapObjects\n\
+	lsls r0, r2, 3\n\
+	adds r0, r2\n\
+	lsls r0, 2\n\
+	adds r2, r0, r1\n\
+	ldrb r0, [r2, 0x18]\n\
+	lsls r0, 28\n\
+	lsrs r0, 28\n\
+	cmp r0, 0x1\n\
+	bne _080B3616\n\
+	adds r0, r3, r7\n\
+	strh r6, [r0]\n\
+_080B3616:\n\
+	ldrb r0, [r2, 0x18]\n\
+	lsls r0, 28\n\
+	lsrs r0, 28\n\
+	cmp r0, 0x2\n\
+	bne _080B3626\n\
+	adds r1, r3, r7\n\
+	movs r0, 0x1\n\
+	strh r0, [r1]\n\
+_080B3626:\n\
+	ldrb r0, [r2, 0x18]\n\
+	lsls r0, 28\n\
+	lsrs r0, 28\n\
+	cmp r0, 0x3\n\
+	bne _080B3636\n\
+	adds r1, r3, r7\n\
+	movs r0, 0x2\n\
+	strh r0, [r1]\n\
+_080B3636:\n\
+	ldrb r0, [r2, 0x18]\n\
+	lsls r0, 28\n\
+	lsrs r0, 28\n\
+	cmp r0, 0x4\n\
+	bne _080B3646\n\
+	adds r1, r3, r7\n\
+	movs r0, 0x3\n\
+	strh r0, [r1]\n\
+_080B3646:\n\
+	mov r0, r8\n\
+	adds r0, 0x1\n\
+	lsls r0, 24\n\
+	lsrs r0, 24\n\
+	mov r8, r0\n\
+_080B3650:\n\
+	adds r0, r4, 0x1\n\
+	lsls r0, 24\n\
+	lsrs r4, r0, 24\n\
+	cmp r4, 0x6\n\
+	bls _080B35B6\n\
+	mov r2, r10\n\
+	lsls r0, r2, 24\n\
+	lsrs r5, r0, 24\n\
+	cmp r5, 0x4\n\
+	bls _080B35B0\n\
+	add sp, 0x8\n\
+	pop {r3-r5}\n\
+	mov r8, r3\n\
+	mov r9, r4\n\
+	mov r10, r5\n\
+	pop {r4-r7}\n\
+	pop {r0}\n\
+	bx r0\n\
+	.align 2, 0\n\
+_080B3674: .4byte gUnknown_020386A4\n\
+_080B3678: .4byte gUnknown_020386AA\n\
+_080B367C: .4byte 0x0000fffd\n\
+_080B3680: .4byte 0x0000fffe\n\
+_080B3684: .4byte gUnknown_020386A8\n\
+_080B3688: .4byte gMapObjects\n\
+	.syntax divided");
+}
+/*
+struct UnkStruct_20386A4
+{
+	s16 mapObjId;
+	u16 unk2;
+	u16 unk4;
+	u8 unk6[2];
+};
+*/
+
+//extern s16 gUnknown_020386A4[][];
+//extern struct UnkStruct_20386A4 gUnknown_020386A4[];
+
+// all 3 of these are incredibly hard, please help
+/*void sub_80B368C(void)
+{
+	// r0 = spriteId
+	// r1 = gUnknown_020386A4 + 6
+	// r2 = gSprites[spriteId]
+	// r3 = gUnknown_020386A4[i].unk4 + 32
+	// r4 = i * 8
+	// r5 = 0 (i)
+	// r6 = gUnknown_020386A4
+	// r7 = gMapObjects
+	// r8 = gUnknown_020386A4 + 6
+	// r9 = 
+	// r10 = 
+	// r11 = 
+	// r12 = 
+
+	u8 i = 0;
+	u8 *unkArray = (u8 *)&gUnknown_020386A4[6];
+
+	for(; i < 16; i++) // max objects?
+	{
+		s16 mapObjId = unkStruct[i].mapObjId;
+		if(mapObjId != 16)
+		{
+			u8 spriteId = AddPseudoFieldObject(
+			gMapObjects[mapObjId].graphicsId,
+			SpriteCallbackDummy,
+			unkStruct[i].unk2 * 16 + 8,
+			unkStruct[i].unk4 + 12,
+			2);
+			StartSpriteAnim(&gSprites[spriteId], unkArray[i]);
+		}
+	}
+}*/