Port script_pokemon_util_80A0058

16 files changed, 263 insertions, 566 deletions

diff --git a/asm/link_rfu_3.s b/asm/link_rfu_3.s
index 1f47f7214..96a599bc9 100644
--- a/asm/link_rfu_3.s
+++ b/asm/link_rfu_3.s
@@ -3272,7 +3272,7 @@ sub_81173C0: @ 81173C0
 	adds r6, r0, 0
 	lsls r6, 16
 	lsrs r6, 16
-	bl sp000_heal_pokemon
+	bl HealPlayerParty
 	bl SavePlayerParty
 	bl LoadPlayerBag
 	ldr r5, _0811742C @ =gLinkPlayers
@@ -3660,7 +3660,7 @@ _081177A0:
 	ldr r0, _081177C4 @ =gBlockSendBuffer
 	movs r1, 0x1
 	bl sub_8117594
-	bl sp000_heal_pokemon
+	bl HealPlayerParty
 	bl SavePlayerParty
 	bl LoadPlayerBag
 	movs r0, 0x1
@@ -3673,7 +3673,7 @@ _081177A0:
 _081177C4: .4byte gBlockSendBuffer
 _081177C8:
 	bl CleanupOverworldWindowsAndTilemaps
-	bl sp000_heal_pokemon
+	bl HealPlayerParty
 	bl SavePlayerParty
 	bl LoadPlayerBag
 	ldr r0, _081177EC @ =gBlockSendBuffer
@@ -3689,7 +3689,7 @@ _081177C8:
 _081177EC: .4byte gBlockSendBuffer
 _081177F0:
 	bl CleanupOverworldWindowsAndTilemaps
-	bl sp000_heal_pokemon
+	bl HealPlayerParty
 	bl SavePlayerParty
 	bl LoadPlayerBag
 	ldr r0, _08117814 @ =gBlockSendBuffer
diff --git a/asm/overworld.s b/asm/overworld.s
index 4fbe39153..9939296af 100644
--- a/asm/overworld.s
+++ b/asm/overworld.s
@@ -19,7 +19,7 @@ sub_8054BC8: @ 8054BC8
 	adds r1, r0, 0
 	adds r0, r4, 0
 	bl RemoveMoney
-	bl sp000_heal_pokemon
+	bl HealPlayerParty
 	bl sub_8054DD8
 	bl sub_80554BC
 	bl WarpIntoMap
diff --git a/asm/script_pokemon_util_80A0058.s b/asm/script_pokemon_util_80A0058.s
deleted file mode 100644
index 6f451b90a..000000000
--- a/asm/script_pokemon_util_80A0058.s
+++ /dev/null
@@ -1,535 +0,0 @@
-	.include "asm/macros.inc"
-	.include "constants/constants.inc"
-
-	.syntax unified
-
-	.text
-
-	thumb_func_start sp000_heal_pokemon
-sp000_heal_pokemon: @ 80A0058
-	push {r4-r7,lr}
-	mov r7, r10
-	mov r6, r9
-	mov r5, r8
-	push {r5-r7}
-	sub sp, 0x4
-	movs r0, 0
-	mov r8, r0
-	ldr r0, _080A0114 @ =gPlayerPartyCount
-	ldrb r0, [r0]
-	cmp r8, r0
-	bcs _080A0104
-	ldr r1, _080A0118 @ =gPlayerParty
-	mov r10, r1
-	mov r6, sp
-_080A0076:
-	movs r0, 0x64
-	mov r4, r8
-	muls r4, r0
-	add r4, r10
-	adds r0, r4, 0
-	movs r1, 0x3A
-	bl GetMonData
-	lsls r1, r0, 16
-	strb r0, [r6]
-	lsrs r1, 24
-	strb r1, [r6, 0x1]
-	adds r0, r4, 0
-	movs r1, 0x39
-	mov r2, sp
-	bl SetMonData
-	adds r0, r4, 0
-	movs r1, 0x15
-	bl GetMonData
-	lsls r0, 24
-	lsrs r7, r0, 24
-	movs r5, 0
-	movs r1, 0x1
-	add r1, r8
-	mov r9, r1
-_080A00AC:
-	adds r1, r5, 0
-	adds r1, 0xD
-	adds r0, r4, 0
-	bl GetMonData
-	lsls r0, 16
-	lsrs r0, 16
-	adds r1, r7, 0
-	adds r2, r5, 0
-	bl CalculatePPWithBonus
-	strb r0, [r6]
-	adds r1, r5, 0
-	adds r1, 0x11
-	adds r0, r4, 0
-	mov r2, sp
-	bl SetMonData
-	adds r0, r5, 0x1
-	lsls r0, 24
-	lsrs r5, r0, 24
-	cmp r5, 0x3
-	bls _080A00AC
-	movs r0, 0
-	strb r0, [r6]
-	strb r0, [r6, 0x1]
-	strb r0, [r6, 0x2]
-	strb r0, [r6, 0x3]
-	movs r1, 0x64
-	mov r0, r8
-	muls r0, r1
-	add r0, r10
-	movs r1, 0x37
-	mov r2, sp
-	bl SetMonData
-	mov r1, r9
-	lsls r0, r1, 24
-	lsrs r0, 24
-	mov r8, r0
-	ldr r0, _080A0114 @ =gPlayerPartyCount
-	ldrb r0, [r0]
-	cmp r8, r0
-	bcc _080A0076
-_080A0104:
-	add sp, 0x4
-	pop {r3-r5}
-	mov r8, r3
-	mov r9, r4
-	mov r10, r5
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080A0114: .4byte gPlayerPartyCount
-_080A0118: .4byte gPlayerParty
-	thumb_func_end sp000_heal_pokemon
-
-	thumb_func_start ScriptGiveMon
-ScriptGiveMon: @ 80A011C
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	sub sp, 0x14
-	adds r6, r0, 0
-	adds r4, r1, 0
-	adds r5, r2, 0
-	lsls r6, 16
-	lsrs r6, 16
-	lsls r4, 24
-	lsrs r4, 24
-	lsls r5, 16
-	lsrs r0, r5, 16
-	mov r8, r0
-	movs r0, 0x64
-	bl AllocZeroed
-	adds r7, r0, 0
-	movs r0, 0
-	str r0, [sp]
-	str r0, [sp, 0x4]
-	str r0, [sp, 0x8]
-	str r0, [sp, 0xC]
-	adds r0, r7, 0
-	adds r1, r6, 0
-	adds r2, r4, 0
-	movs r3, 0x20
-	bl CreateMon
-	add r0, sp, 0x10
-	mov r1, r8
-	strb r1, [r0]
-	lsrs r5, 24
-	strb r5, [r0, 0x1]
-	adds r0, r7, 0
-	movs r1, 0xC
-	add r2, sp, 0x10
-	bl SetMonData
-	adds r0, r7, 0
-	bl GiveMonToPlayer
-	lsls r0, 24
-	lsrs r4, r0, 24
-	adds r0, r6, 0
-	bl SpeciesToNationalPokedexNum
-	lsls r0, 16
-	lsrs r5, r0, 16
-	cmp r4, 0x1
-	bgt _080A0196
-	cmp r4, 0
-	blt _080A0196
-	adds r0, r5, 0
-	movs r1, 0x2
-	bl GetSetPokedexFlag
-	adds r0, r5, 0
-	movs r1, 0x3
-	bl GetSetPokedexFlag
-_080A0196:
-	adds r0, r7, 0
-	bl Free
-	adds r0, r4, 0
-	add sp, 0x14
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r1}
-	bx r1
-	thumb_func_end ScriptGiveMon
-
-	thumb_func_start ScriptGiveEgg
-ScriptGiveEgg: @ 80A01AC
-	push {r4,r5,lr}
-	sub sp, 0x4
-	adds r4, r0, 0
-	lsls r4, 16
-	lsrs r4, 16
-	movs r0, 0x64
-	bl AllocZeroed
-	adds r5, r0, 0
-	adds r1, r4, 0
-	movs r2, 0x1
-	bl CreateEgg
-	movs r1, 0x1
-	mov r0, sp
-	strb r1, [r0]
-	adds r0, r5, 0
-	movs r1, 0x2D
-	mov r2, sp
-	bl SetMonData
-	adds r0, r5, 0
-	bl GiveMonToPlayer
-	adds r4, r0, 0
-	lsls r4, 24
-	lsrs r4, 24
-	adds r0, r5, 0
-	bl Free
-	adds r0, r4, 0
-	add sp, 0x4
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	thumb_func_end ScriptGiveEgg
-
-	thumb_func_start CheckForAlivePartyMons
-CheckForAlivePartyMons: @ 80A01F4
-	push {lr}
-	bl GetMonsStateToDoubles
-	lsls r0, 24
-	lsrs r1, r0, 24
-	cmp r1, 0x1
-	beq _080A0210
-	cmp r1, 0x1
-	bgt _080A020C
-	cmp r1, 0
-	beq _080A0210
-	b _080A0214
-_080A020C:
-	cmp r1, 0x2
-	bne _080A0214
-_080A0210:
-	ldr r0, _080A0218 @ =gSpecialVar_Result
-	strh r1, [r0]
-_080A0214:
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080A0218: .4byte gSpecialVar_Result
-	thumb_func_end CheckForAlivePartyMons
-
-	thumb_func_start CheckPartyMonHasHeldItem
-CheckPartyMonHasHeldItem: @ 80A021C
-	push {r4-r7,lr}
-	lsls r0, 16
-	lsrs r6, r0, 16
-	movs r5, 0
-	movs r7, 0xCE
-	lsls r7, 1
-_080A0228:
-	movs r0, 0x64
-	adds r1, r5, 0
-	muls r1, r0
-	ldr r0, _080A0258 @ =gPlayerParty
-	adds r4, r1, r0
-	adds r0, r4, 0
-	movs r1, 0x41
-	bl GetMonData
-	lsls r0, 16
-	lsrs r0, 16
-	cmp r0, 0
-	beq _080A025C
-	cmp r0, r7
-	beq _080A025C
-	adds r0, r4, 0
-	movs r1, 0xC
-	bl GetMonData
-	cmp r0, r6
-	bne _080A025C
-	movs r0, 0x1
-	b _080A0264
-	.align 2, 0
-_080A0258: .4byte gPlayerParty
-_080A025C:
-	adds r5, 0x1
-	cmp r5, 0x5
-	ble _080A0228
-	movs r0, 0
-_080A0264:
-	pop {r4-r7}
-	pop {r1}
-	bx r1
-	thumb_func_end CheckPartyMonHasHeldItem
-
-	thumb_func_start GetNameOfEnigmaBerryInPlayerParty
-GetNameOfEnigmaBerryInPlayerParty: @ 80A026C
-	push {r4,lr}
-	movs r0, 0xAF
-	bl CheckPartyMonHasHeldItem
-	lsls r0, 24
-	lsrs r0, 24
-	adds r4, r0, 0
-	cmp r4, 0x1
-	bne _080A028E
-	movs r0, 0xAF
-	bl ItemIdToBerryType
-	lsls r0, 24
-	lsrs r0, 24
-	ldr r1, _080A0298 @ =gStringVar1
-	bl GetBerryNameByBerryType
-_080A028E:
-	adds r0, r4, 0
-	pop {r4}
-	pop {r1}
-	bx r1
-	.align 2, 0
-_080A0298: .4byte gStringVar1
-	thumb_func_end GetNameOfEnigmaBerryInPlayerParty
-
-	thumb_func_start CreateScriptedWildMon
-CreateScriptedWildMon: @ 80A029C
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	sub sp, 0x14
-	adds r4, r0, 0
-	adds r5, r1, 0
-	lsls r4, 16
-	lsrs r4, 16
-	lsls r5, 24
-	lsrs r5, 24
-	lsls r7, r2, 16
-	lsrs r6, r7, 16
-	bl ZeroEnemyPartyMons
-	ldr r0, _080A02F8 @ =gEnemyParty
-	mov r8, r0
-	movs r0, 0
-	str r0, [sp]
-	str r0, [sp, 0x4]
-	str r0, [sp, 0x8]
-	str r0, [sp, 0xC]
-	mov r0, r8
-	adds r1, r4, 0
-	adds r2, r5, 0
-	movs r3, 0x20
-	bl CreateMon
-	cmp r6, 0
-	beq _080A02EA
-	add r0, sp, 0x10
-	strb r6, [r0]
-	adds r1, r0, 0
-	lsrs r0, r7, 24
-	strb r0, [r1, 0x1]
-	mov r0, r8
-	movs r1, 0xC
-	add r2, sp, 0x10
-	bl SetMonData
-_080A02EA:
-	add sp, 0x14
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080A02F8: .4byte gEnemyParty
-	thumb_func_end CreateScriptedWildMon
-
-	thumb_func_start ScriptSetMonMoveSlot
-ScriptSetMonMoveSlot: @ 80A02FC
-	push {r4,lr}
-	lsls r0, 24
-	lsrs r3, r0, 24
-	lsls r1, 16
-	lsrs r4, r1, 16
-	lsls r2, 24
-	lsrs r2, 24
-	cmp r3, 0x6
-	bls _080A0318
-	ldr r0, _080A032C @ =gPlayerPartyCount
-	ldrb r0, [r0]
-	subs r0, 0x1
-	lsls r0, 24
-	lsrs r3, r0, 24
-_080A0318:
-	movs r0, 0x64
-	muls r0, r3
-	ldr r1, _080A0330 @ =gPlayerParty
-	adds r0, r1
-	adds r1, r4, 0
-	bl SetMonMoveSlot
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080A032C: .4byte gPlayerPartyCount
-_080A0330: .4byte gPlayerParty
-	thumb_func_end ScriptSetMonMoveSlot
-
-	thumb_func_start sub_80A0334
-sub_80A0334: @ 80A0334
-	push {lr}
-	ldr r1, _080A0348 @ =gMain
-	ldr r0, _080A034C @ =sub_80A0350
-	str r0, [r1, 0x8]
-	movs r0, 0
-	bl InitChooseHalfPartyForBattle
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080A0348: .4byte gMain
-_080A034C: .4byte sub_80A0350
-	thumb_func_end sub_80A0334
-
-	thumb_func_start sub_80A0350
-sub_80A0350: @ 80A0350
-	push {lr}
-	ldr r0, _080A0360 @ =gSelectedOrderFromParty
-	ldrb r1, [r0]
-	cmp r1, 0
-	bne _080A0368
-	ldr r0, _080A0364 @ =gSpecialVar_Result
-	strh r1, [r0]
-	b _080A036E
-	.align 2, 0
-_080A0360: .4byte gSelectedOrderFromParty
-_080A0364: .4byte gSpecialVar_Result
-_080A0368:
-	ldr r1, _080A0378 @ =gSpecialVar_Result
-	movs r0, 0x1
-	strh r0, [r1]
-_080A036E:
-	ldr r0, _080A037C @ =CB2_ReturnToFieldContinueScriptPlayMapMusic
-	bl SetMainCallback2
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080A0378: .4byte gSpecialVar_Result
-_080A037C: .4byte CB2_ReturnToFieldContinueScriptPlayMapMusic
-	thumb_func_end sub_80A0350
-
-	thumb_func_start ChooseBattleTowerPlayerParty
-ChooseBattleTowerPlayerParty: @ 80A0380
-	push {lr}
-	ldr r1, _080A0394 @ =gMain
-	ldr r0, _080A0398 @ =sub_80A039C
-	str r0, [r1, 0x8]
-	movs r0, 0x1
-	bl InitChooseHalfPartyForBattle
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080A0394: .4byte gMain
-_080A0398: .4byte sub_80A039C
-	thumb_func_end ChooseBattleTowerPlayerParty
-
-	thumb_func_start sub_80A039C
-sub_80A039C: @ 80A039C
-	push {r4,lr}
-	ldr r0, _080A03B0 @ =gSelectedOrderFromParty
-	ldrb r4, [r0]
-	cmp r4, 0
-	bne _080A03B8
-	bl LoadPlayerParty
-	ldr r0, _080A03B4 @ =gSpecialVar_Result
-	strh r4, [r0]
-	b _080A03C2
-	.align 2, 0
-_080A03B0: .4byte gSelectedOrderFromParty
-_080A03B4: .4byte gSpecialVar_Result
-_080A03B8:
-	bl ReducePlayerPartyToThree
-	ldr r1, _080A03D0 @ =gSpecialVar_Result
-	movs r0, 0x1
-	strh r0, [r1]
-_080A03C2:
-	ldr r0, _080A03D4 @ =CB2_ReturnToFieldContinueScriptPlayMapMusic
-	bl SetMainCallback2
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080A03D0: .4byte gSpecialVar_Result
-_080A03D4: .4byte CB2_ReturnToFieldContinueScriptPlayMapMusic
-	thumb_func_end sub_80A039C
-
-	thumb_func_start ReducePlayerPartyToThree
-ReducePlayerPartyToThree: @ 80A03D8
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	sub sp, 0x4
-	movs r0, 0x96
-	lsls r0, 1
-	bl AllocZeroed
-	adds r7, r0, 0
-	movs r5, 0
-	movs r0, 0x64
-	mov r8, r0
-	ldr r6, _080A0454 @ =gPlayerParty
-	adds r4, r7, 0
-_080A03F4:
-	ldr r0, _080A0458 @ =gSelectedOrderFromParty
-	adds r1, r5, r0
-	ldrb r0, [r1]
-	cmp r0, 0
-	beq _080A040E
-	subs r0, 0x1
-	mov r1, r8
-	muls r1, r0
-	adds r1, r6
-	adds r0, r4, 0
-	movs r2, 0x64
-	bl memcpy
-_080A040E:
-	adds r4, 0x64
-	adds r5, 0x1
-	cmp r5, 0x2
-	ble _080A03F4
-	movs r0, 0
-	str r0, [sp]
-	ldr r4, _080A0454 @ =gPlayerParty
-	ldr r2, _080A045C @ =0x05000096
-	mov r0, sp
-	adds r1, r4, 0
-	bl CpuSet
-	adds r5, r7, 0
-	adds r6, r7, 0
-	adds r6, 0xC8
-_080A042C:
-	adds r0, r4, 0
-	adds r1, r5, 0
-	movs r2, 0x64
-	bl memcpy
-	adds r5, 0x64
-	adds r4, 0x64
-	cmp r5, r6
-	ble _080A042C
-	bl CalculatePlayerPartyCount
-	adds r0, r7, 0
-	bl Free
-	add sp, 0x4
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080A0454: .4byte gPlayerParty
-_080A0458: .4byte gSelectedOrderFromParty
-_080A045C: .4byte 0x05000096
-	thumb_func_end ReducePlayerPartyToThree
-
-	.align 2, 0 @ Don't pad with nop.
diff --git a/data/event_scripts.s b/data/event_scripts.s
index 21fdffe43..13bba19f8 100644
--- a/data/event_scripts.s
+++ b/data/event_scripts.s
@@ -871,7 +871,7 @@ EventScript_TryDoDoubleTrainerBattle:: @ 81A4EE9
 	specialvar VAR_RESULT, ScrSpecial_HasTrainerBeenFought
 	compare_var_to_value VAR_RESULT, 0
 	goto_if ne, EventScript_1A4F20
-	special CheckForAlivePartyMons
+	special HasEnoughMonsForDoubleBattle
 	compare_var_to_value VAR_RESULT, 0
 	goto_if ne, EventScript_1A4F19
 	special PlayTrainerEncounterMusic
@@ -923,7 +923,7 @@ EventScript_TryDoDoubleRematchBattle:: @ 81A4F73
 	specialvar VAR_RESULT, ScrSpecial_GetTrainerEyeRematchFlag
 	compare_var_to_value VAR_RESULT, 0
 	goto_if eq, EventScript_1A4FB0
-	special CheckForAlivePartyMons
+	special HasEnoughMonsForDoubleBattle
 	compare_var_to_value VAR_RESULT, 0
 	goto_if ne, EventScript_1A4FB1
 	special PlayTrainerEncounterMusic
@@ -1617,7 +1617,7 @@ EventScript_1A65CE:: @ 81A65CE
 	waitfieldeffect 25
 	applymovement VAR_LAST_TALKED, Movement_1A75ED
 	waitmovement 0
-	special sp000_heal_pokemon
+	special HealPlayerParty
 	return
 
 EventScript_1A65EC:: @ 81A65EC
@@ -2161,7 +2161,7 @@ EventScript_FadeOut_Heal_FadeIn:: @ 81A6C26
 	fadescreen 1
 	playfanfare MUS_ME_ASA
 	waitfanfare
-	special sp000_heal_pokemon
+	special HealPlayerParty
 	fadescreen 0
 	return
 
@@ -8644,7 +8644,7 @@ EventScript_1BB519:: @ 81BB519
 	end
 
 EventScript_1BB51A:: @ 81BB51A
-	special CheckForAlivePartyMons
+	special HasEnoughMonsForDoubleBattle
 	compare_var_to_value VAR_RESULT, 0
 	goto_if ne, EventScript_1BB533
 	setvar VAR_0x8004, 2
@@ -8693,7 +8693,7 @@ EventScript_1BB54C:: @ 81BB54C
 	end
 
 EventScript_1BB5B3:: @ 81BB5B3
-	special sp000_heal_pokemon
+	special HealPlayerParty
 	special SavePlayerParty
 	special LoadPlayerBag
 	copyvar VAR_0x406F, VAR_0x8004
@@ -9019,7 +9019,7 @@ UnknownMap_00_00_EventScript_1BB8CF:: @ 81BB8CF
 gUnknown_81BB8DB:: @ 81BB8DB
 UnknownMap_00_03_EventScript_1BB8DB:: @ 81BB8DB
 	fadescreen 1
-	special sub_80A0334
+	special ChooseHalfPartyForBattle
 	waitstate
 	compare_var_to_value VAR_RESULT, 0
 	goto_if eq, EventScript_1BB94F
@@ -9032,7 +9032,7 @@ UnknownMap_00_03_EventScript_1BB8DB:: @ 81BB8DB
 gUnknown_81BB8F8:: @ 81BB8F8
 UnknownMap_00_03_EventScript_1BB8F8:: @ 81BB8F8
 	fadescreen 1
-	special sub_80A0334
+	special ChooseHalfPartyForBattle
 	waitstate
 	compare_var_to_value VAR_RESULT, 0
 	goto_if eq, EventScript_1BB94F
@@ -9045,7 +9045,7 @@ UnknownMap_00_03_EventScript_1BB8F8:: @ 81BB8F8
 gUnknown_81BB915:: @ 81BB915
 UnknownMap_00_03_EventScript_1BB915:: @ 81BB915
 	fadescreen 1
-	special sub_80A0334
+	special ChooseHalfPartyForBattle
 	waitstate
 	compare_var_to_value VAR_RESULT, 0
 	goto_if eq, EventScript_1BB94F
@@ -9058,7 +9058,7 @@ UnknownMap_00_03_EventScript_1BB915:: @ 81BB915
 gUnknown_81BB932:: @ 81BB932
 UnknownMap_00_03_EventScript_1BB932:: @ 81BB932
 	fadescreen 1
-	special sub_80A0334
+	special ChooseHalfPartyForBattle
 	waitstate
 	compare_var_to_value VAR_RESULT, 0
 	goto_if eq, EventScript_1BB94F
@@ -9217,7 +9217,7 @@ EventScript_1BBA94:: @ 81BBA94
 	goto_if eq, EventScript_1BB82F
 	msgbox gUnknown_81BD86A
 	closemessage
-	special sp000_heal_pokemon
+	special HealPlayerParty
 	setvar VAR_0x8004, 6
 	copyvar VAR_0x406F, VAR_0x8004
 	special HelpSystem_Disable
@@ -9368,7 +9368,7 @@ EventScript_1BBCF4:: @ 81BBCF4
 	end
 
 EventScript_1BBCF5:: @ 81BBCF5
-	special CheckForAlivePartyMons
+	special HasEnoughMonsForDoubleBattle
 	compare_var_to_value VAR_RESULT, 0
 	goto_if ne, EventScript_1BBD0E
 	setvar VAR_0x8004, 1
@@ -14241,7 +14241,7 @@ EventScript_1C52D7:
 	end
 
 EventScript_1C52E0:: @ 81C52E0
-	special sp000_heal_pokemon
+	special HealPlayerParty
 	setvar VAR_0x8004, 11
 	special sub_815D9E8
 	warp MAP_SEVEN_ISLAND_TRAINER_TOWER_LOBBY, 255, 9, 7
diff --git a/data/maps/OneIsland_KindleRoad_EmberSpa/scripts.inc b/data/maps/OneIsland_KindleRoad_EmberSpa/scripts.inc
index 71c8cf0ee..a713b044f 100644
--- a/data/maps/OneIsland_KindleRoad_EmberSpa/scripts.inc
+++ b/data/maps/OneIsland_KindleRoad_EmberSpa/scripts.inc
@@ -45,7 +45,7 @@ EventScript_1653C5:: @ 81653C5
 OneIsland_KindleRoad_EmberSpa_EventScript_1653CF:: @ 81653CF
 	lockall
 	fadescreen 3
-	special sp000_heal_pokemon
+	special HealPlayerParty
 	fadescreen 2
 	msgbox gUnknown_817D450
 	setvar VAR_0x4001, 1
diff --git a/data/maps/PalletTown_ProfessorOaksLab/scripts.inc b/data/maps/PalletTown_ProfessorOaksLab/scripts.inc
index 850182c08..38d85f0d1 100644
--- a/data/maps/PalletTown_ProfessorOaksLab/scripts.inc
+++ b/data/maps/PalletTown_ProfessorOaksLab/scripts.inc
@@ -488,7 +488,7 @@ Movement_1694BE:: @ 81694BE
 	step_end
 
 EventScript_1694C2:: @ 81694C2
-	special sp000_heal_pokemon
+	special HealPlayerParty
 	msgbox gUnknown_818DE38
 	closemessage
 	playbgm MUS_RIVAL2, 0
diff --git a/data/maps/PokemonTower_5F/scripts.inc b/data/maps/PokemonTower_5F/scripts.inc
index 85517e241..dee5b5bbd 100644
--- a/data/maps/PokemonTower_5F/scripts.inc
+++ b/data/maps/PokemonTower_5F/scripts.inc
@@ -8,7 +8,7 @@ PokemonTower_5F_EventScript_163433:: @ 8163433
 PokemonTower_5F_EventScript_16343C:: @ 816343C
 	lockall
 	fadescreen 3
-	special sp000_heal_pokemon
+	special HealPlayerParty
 	fadescreen 2
 	msgbox gUnknown_817A1FA
 	setvar VAR_0x4001, 1
diff --git a/data/maps/SevenIsland_House_Room1/scripts.inc b/data/maps/SevenIsland_House_Room1/scripts.inc
index fd83fa051..f136b8de2 100644
--- a/data/maps/SevenIsland_House_Room1/scripts.inc
+++ b/data/maps/SevenIsland_House_Room1/scripts.inc
@@ -128,7 +128,7 @@ EventScript_170A11:: @ 8170A11
 EventScript_170A1E:: @ 8170A1E
 	msgbox gUnknown_81A06AB
 	fadescreen 1
-	special sub_80A0334
+	special ChooseHalfPartyForBattle
 	waitstate
 	return
 
diff --git a/data/maps/SevenIsland_House_Room2/scripts.inc b/data/maps/SevenIsland_House_Room2/scripts.inc
index f2928f916..0ca956c55 100644
--- a/data/maps/SevenIsland_House_Room2/scripts.inc
+++ b/data/maps/SevenIsland_House_Room2/scripts.inc
@@ -29,7 +29,7 @@ EventScript_170A97:: @ 8170A97
 	compare_var_to_value VAR_RESULT, 2
 	call_if eq, EventScript_170B17
 	closemessage
-	special sp000_heal_pokemon
+	special HealPlayerParty
 	applymovement 255, Movement_170B28
 	waitmovement 0
 	special LoadPlayerParty
diff --git a/data/maps/SevenIsland_TrainerTower_Lobby/scripts.inc b/data/maps/SevenIsland_TrainerTower_Lobby/scripts.inc
index 142f33ee3..b0074f4b3 100644
--- a/data/maps/SevenIsland_TrainerTower_Lobby/scripts.inc
+++ b/data/maps/SevenIsland_TrainerTower_Lobby/scripts.inc
@@ -196,7 +196,7 @@ EventScript_164A53:: @ 8164A53
 EventScript_164AA0:: @ 8164AA0
 	copyvar VAR_0x8005, VAR_RESULT
 	setvar VAR_MAP_SCENE_TRAINER_TOWER, 1
-	special sp000_heal_pokemon
+	special HealPlayerParty
 	msgbox gUnknown_817C8BF
 	setvar VAR_0x8004, 6
 	special sub_815D9E8
diff --git a/data/specials.inc b/data/specials.inc
index f7ca055ef..514acc0fc 100644
--- a/data/specials.inc
+++ b/data/specials.inc
@@ -8,7 +8,7 @@
 .set __special__, 0
 	.align 2
 gSpecials:: @ 815FD60
-	def_special sp000_heal_pokemon
+	def_special HealPlayerParty
 	def_special SetCableClubWarp
 	def_special DoCableClubWarp
 	def_special sub_807E704
@@ -49,7 +49,7 @@ gSpecials:: @ 815FD60
 	def_special nullsub_75
 	def_special SavePlayerParty
 	def_special LoadPlayerParty
-	def_special sub_80A0334
+	def_special ChooseHalfPartyForBattle
 	def_special sp02A_crash_sound
 	def_special nullsub_75
 	def_special nullsub_75
@@ -69,7 +69,7 @@ gSpecials:: @ 815FD60
 	def_special ScrSpecial_GetTrainerEyeRematchFlag
 	def_special ScrSpecial_StartTrainerEyeRematch
 	def_special ShowPokemonStorageSystem
-	def_special CheckForAlivePartyMons
+	def_special HasEnoughMonsForDoubleBattle
 	def_special nullsub_75
 	def_special nullsub_75
 	def_special nullsub_75
diff --git a/include/script_pokemon_util_80A0058.h b/include/script_pokemon_util_80A0058.h
index b63a7b0ef..d0b8949e4 100644
--- a/include/script_pokemon_util_80A0058.h
+++ b/include/script_pokemon_util_80A0058.h
@@ -4,7 +4,7 @@
 bool8 ScriptGiveMon(u16 species, u8 level, u16 item, u32 unk1, u32 unk2, u8 unk3);
 bool8 ScriptGiveEgg(u16 species);
 void ScriptSetMonMoveSlot(u8 partyIdx, u16 move, u8 slot);
-void sp000_heal_pokemon(void);
+void HealPlayerParty(void);
 void ReducePlayerPartyToThree(void);
 
 #endif //GUARD_SCRIPT_POKEMON_UTIL_80A0058_H
diff --git a/ld_script.txt b/ld_script.txt
index 614bc4c93..995bed11f 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -145,7 +145,7 @@ SECTIONS {
         src/script_menu.o(.text);
         asm/naming_screen.o(.text);
         src/money.o(.text);
-        asm/script_pokemon_util_80A0058.o(.text);
+        src/script_pokemon_util_80A0058.o(.text);
         src/field_poison.o(.text);
         src/pokemon_size_record.o(.text);
         asm/pc_screen_effect.o(.text);
diff --git a/src/battle_setup.c b/src/battle_setup.c
index 17da53083..dee0c492b 100644
--- a/src/battle_setup.c
+++ b/src/battle_setup.c
@@ -901,7 +901,7 @@ static void CB2_EndTrainerBattle(void)
             gSpecialVar_Result = 1;
             if (gUnknown_20386CC & 1)
             {
-                sp000_heal_pokemon();
+                HealPlayerParty();
             }
             else
             {
diff --git a/src/post_battle_event_funcs.c b/src/post_battle_event_funcs.c
index 6d4652f35..1e61b9b77 100644
--- a/src/post_battle_event_funcs.c
+++ b/src/post_battle_event_funcs.c
@@ -14,7 +14,7 @@ bool8 Special_HallOfFame(void)
     bool8 *r7;
     int i;
     bool8 gaveAtLeastOneRibbon;
-    sp000_heal_pokemon();
+    HealPlayerParty();
     if (FlagGet(FLAG_SYS_GAME_CLEAR) == TRUE)
     {
         gHasHallOfFameRecords = TRUE;
diff --git a/src/script_pokemon_util_80A0058.c b/src/script_pokemon_util_80A0058.c
new file mode 100644
index 000000000..9a9fd37a5
--- /dev/null
+++ b/src/script_pokemon_util_80A0058.c
@@ -0,0 +1,232 @@
+#include "global.h"
+#include "battle.h"
+#include "battle_gfx_sfx_util.h"
+#include "berry.h"
+#include "data.h"
+#include "daycare.h"
+#include "decompress.h"
+#include "event_data.h"
+#include "event_object_movement.h"
+#include "link.h"
+#include "link_rfu.h"
+#include "load_save.h"
+#include "main.h"
+#include "malloc.h"
+#include "menu.h"
+#include "overworld.h"
+#include "palette.h"
+#include "party_menu.h"
+#include "pokedex.h"
+#include "pokemon.h"
+#include "random.h"
+#include "script.h"
+#include "script_menu.h"
+#include "script_pokemon_util_80A0058.h"
+#include "sprite.h"
+#include "string_util.h"
+#include "constants/items.h"
+#include "constants/species.h"
+#include "constants/vars.h"
+
+static void CB2_ReturnFromChooseHalfParty(void);
+static void CB2_ReturnFromChooseBattleTowerParty(void);
+
+void HealPlayerParty(void)
+{
+    u8 i, j;
+    u8 ppBonuses;
+    u8 arg[4];
+
+    // restore HP.
+    for(i = 0; i < gPlayerPartyCount; i++)
+    {
+        u16 maxHP = GetMonData(&gPlayerParty[i], MON_DATA_MAX_HP);
+        arg[0] = maxHP;
+        arg[1] = maxHP >> 8;
+        SetMonData(&gPlayerParty[i], MON_DATA_HP, arg);
+        ppBonuses = GetMonData(&gPlayerParty[i], MON_DATA_PP_BONUSES);
+
+        // restore PP.
+        for(j = 0; j < MAX_MON_MOVES; j++)
+        {
+            arg[0] = CalculatePPWithBonus(GetMonData(&gPlayerParty[i], MON_DATA_MOVE1 + j), ppBonuses, j);
+            SetMonData(&gPlayerParty[i], MON_DATA_PP1 + j, arg);
+        }
+
+        // since status is u32, the four 0 assignments here are probably for safety to prevent undefined data from reaching SetMonData.
+        arg[0] = 0;
+        arg[1] = 0;
+        arg[2] = 0;
+        arg[3] = 0;
+        SetMonData(&gPlayerParty[i], MON_DATA_STATUS, arg);
+    }
+}
+
+u8 ScriptGiveMon(u16 species, u8 level, u16 item, u32 unused1, u32 unused2, u8 unused3)
+{
+    u16 nationalDexNum;
+    int sentToPc;
+    u8 heldItem[2];
+    struct Pokemon *mon = AllocZeroed(sizeof(struct Pokemon));
+
+    CreateMon(mon, species, level, 32, 0, 0, OT_ID_PLAYER_ID, 0);
+    heldItem[0] = item;
+    heldItem[1] = item >> 8;
+    SetMonData(mon, MON_DATA_HELD_ITEM, heldItem);
+    sentToPc = GiveMonToPlayer(mon);
+    nationalDexNum = SpeciesToNationalPokedexNum(species);
+
+    switch(sentToPc)
+    {
+    case 0:
+    case 1:
+        GetSetPokedexFlag(nationalDexNum, FLAG_SET_SEEN);
+        GetSetPokedexFlag(nationalDexNum, FLAG_SET_CAUGHT);
+        break;
+    }
+
+    Free(mon);
+    return sentToPc;
+}
+
+u8 ScriptGiveEgg(u16 species)
+{
+    struct Pokemon *mon = AllocZeroed(sizeof(struct Pokemon));
+    u8 isEgg;
+    bool8 sentToPc;
+
+    CreateEgg(mon, species, TRUE);
+    isEgg = TRUE;
+    SetMonData(mon, MON_DATA_IS_EGG, &isEgg);
+
+    sentToPc = GiveMonToPlayer(mon);
+    Free(mon);
+    return sentToPc;
+}
+
+void HasEnoughMonsForDoubleBattle(void)
+{
+    switch (GetMonsStateToDoubles())
+    {
+    case PLAYER_HAS_TWO_USABLE_MONS:
+        gSpecialVar_Result = PLAYER_HAS_TWO_USABLE_MONS;
+        break;
+    case PLAYER_HAS_ONE_MON:
+        gSpecialVar_Result = PLAYER_HAS_ONE_MON;
+        break;
+    case PLAYER_HAS_ONE_USABLE_MON:
+        gSpecialVar_Result = PLAYER_HAS_ONE_USABLE_MON;
+        break;
+    }
+}
+
+static bool8 CheckPartyMonHasHeldItem(u16 item)
+{
+    int i;
+
+    for(i = 0; i < PARTY_SIZE; i++)
+    {
+        u16 species = GetMonData(&gPlayerParty[i], MON_DATA_SPECIES2);
+        if (species != SPECIES_NONE && species != SPECIES_EGG && GetMonData(&gPlayerParty[i], MON_DATA_HELD_ITEM) == item)
+            return TRUE;
+    }
+    return FALSE;
+}
+
+bool8 GetNameOfEnigmaBerryInPlayerParty(void)
+{
+    bool8 hasItem = CheckPartyMonHasHeldItem(ITEM_ENIGMA_BERRY);
+    if (hasItem == TRUE)
+        GetBerryNameByBerryType(ItemIdToBerryType(ITEM_ENIGMA_BERRY), gStringVar1);
+
+    return hasItem;
+}
+
+void CreateScriptedWildMon(u16 species, u8 level, u16 item)
+{
+    u8 heldItem[2];
+
+    ZeroEnemyPartyMons();
+    CreateMon(&gEnemyParty[0], species, level, 32, 0, 0, OT_ID_PLAYER_ID, 0);
+    if (item)
+    {
+        heldItem[0] = item;
+        heldItem[1] = item >> 8;
+        SetMonData(&gEnemyParty[0], MON_DATA_HELD_ITEM, heldItem);
+    }
+}
+
+void ScriptSetMonMoveSlot(u8 monIndex, u16 move, u8 slot)
+{
+    if (monIndex > PARTY_SIZE)
+        monIndex = gPlayerPartyCount - 1;
+
+    SetMonMoveSlot(&gPlayerParty[monIndex], move, slot);
+}
+
+// Note: When control returns to the event script, gSpecialVar_Result will be
+// TRUE if the party selection was successful.
+void ChooseHalfPartyForBattle(void)
+{
+    gMain.savedCallback = CB2_ReturnFromChooseHalfParty;
+//    VarSet(VAR_FRONTIER_FACILITY, FACILITY_MULTI_OR_EREADER);
+    InitChooseHalfPartyForBattle(0);
+}
+
+static void CB2_ReturnFromChooseHalfParty(void)
+{
+    switch (gSelectedOrderFromParty[0])
+    {
+    case 0:
+        gSpecialVar_Result = FALSE;
+        break;
+    default:
+        gSpecialVar_Result = TRUE;
+        break;
+    }
+
+    SetMainCallback2(CB2_ReturnToFieldContinueScriptPlayMapMusic);
+}
+
+void ChooseBattleTowerPlayerParty(void)
+{
+    gMain.savedCallback = CB2_ReturnFromChooseBattleTowerParty;
+    InitChooseHalfPartyForBattle(1);
+}
+
+static void CB2_ReturnFromChooseBattleTowerParty(void)
+{
+    switch (gSelectedOrderFromParty[0])
+    {
+    case 0:
+        LoadPlayerParty();
+        gSpecialVar_Result = FALSE;
+        break;
+    default:
+        ReducePlayerPartyToThree();
+        gSpecialVar_Result = TRUE;
+        break;
+    }
+
+    SetMainCallback2(CB2_ReturnToFieldContinueScriptPlayMapMusic);
+}
+
+void ReducePlayerPartyToThree(void)
+{
+    struct Pokemon * party = AllocZeroed(3 * sizeof(struct Pokemon));
+    int i;
+
+    // copy the selected pokemon according to the order.
+    for (i = 0; i < 3; i++)
+        if (gSelectedOrderFromParty[i]) // as long as the order keeps going (did the player select 1 mon? 2? 3?), do not stop
+            party[i] = gPlayerParty[gSelectedOrderFromParty[i] - 1]; // index is 0 based, not literal
+
+    CpuFill32(0, gPlayerParty, sizeof gPlayerParty);
+
+    // overwrite the first 4 with the order copied to.
+    for (i = 0; i < 3; i++)
+        gPlayerParty[i] = party[i];
+
+    CalculatePlayerPartyCount();
+    Free(party);
+}