more work on wild encounter

12 files changed, 291 insertions, 620 deletions

diff --git a/asm/battle_frontier_2.s b/asm/battle_frontier_2.s
index f92f964bb..43ad02708 100755
--- a/asm/battle_frontier_2.s
+++ b/asm/battle_frontier_2.s
@@ -25426,8 +25426,8 @@ sub_81A7B84: @ 81A7B84
 	.pool
 	thumb_func_end sub_81A7B84
 
-	thumb_func_start sub_81A7B90
-sub_81A7B90: @ 81A7B90
+	thumb_func_start TryGenerateBattlePikeWildMon
+TryGenerateBattlePikeWildMon: @ 81A7B90
 	push {r4-r7,lr}
 	mov r7, r10
 	mov r6, r9
@@ -25437,7 +25437,7 @@ sub_81A7B90: @ 81A7B90
 	lsls r0, 24
 	lsrs r0, 24
 	mov r8, r0
-	bl sub_81A7D00
+	bl GetBattlePikeWildMonHeaderId
 	lsls r0, 24
 	lsrs r6, r0, 24
 	ldr r7, =gSaveBlock2Ptr
@@ -25596,10 +25596,10 @@ _081A7CE2:
 	pop {r1}
 	bx r1
 	.pool
-	thumb_func_end sub_81A7B90
+	thumb_func_end TryGenerateBattlePikeWildMon
 
-	thumb_func_start sub_81A7D00
-sub_81A7D00: @ 81A7D00
+	thumb_func_start GetBattlePikeWildMonHeaderId
+GetBattlePikeWildMonHeaderId: @ 81A7D00
 	push {lr}
 	ldr r0, =gSaveBlock2Ptr
 	ldr r1, [r0]
@@ -25638,7 +25638,7 @@ _081A7D4C:
 	adds r0, r1, 0
 	pop {r1}
 	bx r1
-	thumb_func_end sub_81A7D00
+	thumb_func_end GetBattlePikeWildMonHeaderId
 
 	thumb_func_start sub_81A7D54
 sub_81A7D54: @ 81A7D54
@@ -29386,8 +29386,8 @@ _081A9B86:
 	.pool
 	thumb_func_end sub_81A9B44
 
-	thumb_func_start sub_81A9C04
-sub_81A9C04: @ 81A9C04
+	thumb_func_start GenerateBattlePyramidWildMon
+GenerateBattlePyramidWildMon: @ 81A9C04
 	push {r4-r6,lr}
 	sub sp, 0x14
 	ldr r0, =gSaveBlock2Ptr
@@ -29627,7 +29627,7 @@ _081A9E0C:
 	pop {r0}
 	bx r0
 	.pool
-	thumb_func_end sub_81A9C04
+	thumb_func_end GenerateBattlePyramidWildMon
 
 	thumb_func_start sub_81A9E28
 sub_81A9E28: @ 81A9E28
diff --git a/asm/battle_setup.s b/asm/battle_setup.s
index 621749734..f77e7a5d0 100644
--- a/asm/battle_setup.s
+++ b/asm/battle_setup.s
@@ -82,8 +82,8 @@ task_add_01_battle_start: @ 80B065C
 	.pool
 	thumb_func_end task_add_01_battle_start
 
-	thumb_func_start sub_80B0698
-sub_80B0698: @ 80B0698
+	thumb_func_start BattleSetup_StartWildBattle
+BattleSetup_StartWildBattle: @ 80B0698
 	push {lr}
 	bl GetSafariZoneFlag
 	cmp r0, 0
@@ -95,15 +95,15 @@ _080B06A8:
 _080B06AC:
 	pop {r0}
 	bx r0
-	thumb_func_end sub_80B0698
+	thumb_func_end BattleSetup_StartWildBattle
 
-	thumb_func_start sub_80B06B0
-sub_80B06B0: @ 80B06B0
+	thumb_func_start BattleSetup_StartBattlePikeWildBattle
+BattleSetup_StartBattlePikeWildBattle: @ 80B06B0
 	push {lr}
 	bl sub_80B07B4
 	pop {r0}
 	bx r0
-	thumb_func_end sub_80B06B0
+	thumb_func_end BattleSetup_StartBattlePikeWildBattle
 
 	thumb_func_start sub_80B06BC
 sub_80B06BC: @ 80B06BC
@@ -147,8 +147,8 @@ _080B06F2:
 	.pool
 	thumb_func_end sub_80B06BC
 
-	thumb_func_start sub_80B072C
-sub_80B072C: @ 80B072C
+	thumb_func_start BattleSetup_StartRoamerBattle
+BattleSetup_StartRoamerBattle: @ 80B072C
 	push {lr}
 	bl ScriptContext2_Enable
 	bl player_bitmagic
@@ -174,7 +174,7 @@ sub_80B072C: @ 80B072C
 	pop {r0}
 	bx r0
 	.pool
-	thumb_func_end sub_80B072C
+	thumb_func_end BattleSetup_StartRoamerBattle
 
 	thumb_func_start sub_80B077C
 sub_80B077C: @ 80B077C
diff --git a/asm/field_control_avatar.s b/asm/field_control_avatar.s
index 7ce989d94..a6d3c93ea 100644
--- a/asm/field_control_avatar.s
+++ b/asm/field_control_avatar.s
@@ -1607,7 +1607,7 @@ _0809CC0C:
 	ldr r5, =gUnknown_020375D6
 	ldrh r1, [r5]
 	adds r0, r4, 0
-	bl is_it_battle_time_2
+	bl StandardWildEncounter
 	lsls r0, 24
 	lsrs r0, 24
 	cmp r0, 0x1
diff --git a/asm/field_player_avatar.s b/asm/field_player_avatar.s
index 34ff54f61..28c90d23d 100644
--- a/asm/field_player_avatar.s
+++ b/asm/field_player_avatar.s
@@ -4316,7 +4316,7 @@ fish5: @ 808CABC
 	adds r0, 0x1
 	strh r0, [r5, 0x8]
 	movs r6, 0
-	bl GetFishingWildMonListHeader
+	bl DoesCurrentMapHaveFishingMons
 	lsls r0, 24
 	cmp r0, 0
 	bne _0808CADC
diff --git a/asm/wild_encounter.s b/asm/wild_encounter.s
index 19b7eeba6..d8f02ae83 100644
--- a/asm/wild_encounter.s
+++ b/asm/wild_encounter.s
@@ -6,598 +6,7 @@
 	.text
 
 
-	thumb_func_start DoGlobalWildEncounterDiceRoll
-DoGlobalWildEncounterDiceRoll: @ 80B523C
-	push {lr}
-	bl Random
-	lsls r0, 16
-	lsrs r0, 16
-	movs r1, 0x64
-	bl __umodsi3
-	lsls r0, 16
-	lsrs r0, 16
-	cmp r0, 0x3B
-	bhi _080B5258
-	movs r0, 0x1
-	b _080B525A
-_080B5258:
-	movs r0, 0
-_080B525A:
-	pop {r1}
-	bx r1
-	thumb_func_end DoGlobalWildEncounterDiceRoll
-
-	thumb_func_start sub_80B5260
-sub_80B5260: @ 80B5260
-	push {lr}
-	ldr r0, =gSaveBlock1Ptr
-	ldr r0, [r0]
-	ldrh r1, [r0, 0x4]
-	movs r0, 0xE0
-	lsls r0, 3
-	cmp r1, r0
-	bne _080B5280
-	movs r0, 0x53
-	bl FlagGet
-	lsls r0, 24
-	lsrs r0, 24
-	b _080B5282
-	.pool
-_080B5280:
-	movs r0, 0
-_080B5282:
-	pop {r1}
-	bx r1
-	thumb_func_end sub_80B5260
 
-	thumb_func_start is_it_battle_time_2
-is_it_battle_time_2: @ 80B5288
-	push {r4-r7,lr}
-	mov r7, r9
-	mov r6, r8
-	push {r6,r7}
-	lsls r0, 16
-	lsrs r6, r0, 16
-	mov r9, r6
-	lsls r1, 16
-	lsrs r7, r1, 16
-	mov r8, r7
-	ldr r0, =sWildEncountersDisabled
-	ldrb r0, [r0]
-	cmp r0, 0x1
-	bne _080B52A6
-	b _080B54FE
-_080B52A6:
-	bl GetCurrentMapWildMonHeaderId
-	lsls r0, 16
-	lsrs r5, r0, 16
-	ldr r0, =0x0000ffff
-	cmp r5, r0
-	bne _080B539C
-	ldr r0, =gMapHeader
-	ldrh r1, [r0, 0x12]
-	movs r0, 0xB3
-	lsls r0, 1
-	cmp r1, r0
-	bne _080B5330
-	bl sub_81A7D00
-	lsls r0, 24
-	lsrs r5, r0, 24
-	cmp r7, r6
-	beq _080B52D8
-	bl DoGlobalWildEncounterDiceRoll
-	lsls r0, 24
-	cmp r0, 0
-	bne _080B52D8
-	b _080B54FE
-_080B52D8:
-	ldr r1, =gUnknown_08553A14
-	lsls r0, r5, 2
-	adds r0, r5
-	lsls r0, 2
-	adds r1, 0x4
-	adds r4, r0, r1
-	ldr r0, [r4]
-	ldrb r0, [r0]
-	movs r1, 0
-	bl DoWildEncounterRateTest
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _080B52F8
-	b _080B54FE
-_080B52F8:
-	ldr r0, [r4]
-	movs r1, 0
-	movs r2, 0x2
-	bl TryGenerateWildMon
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _080B530C
-	b _080B54FE
-_080B530C:
-	movs r0, 0x1
-	bl sub_81A7B90
-	cmp r0, 0
-	bne _080B5318
-	b _080B54FE
-_080B5318:
-	bl sub_80B06B0
-	movs r0, 0x1
-	b _080B5500
-	.pool
-_080B5330:
-	ldr r0, =0x00000169
-	cmp r1, r0
-	beq _080B5338
-	b _080B54FE
-_080B5338:
-	ldr r0, =gSaveBlock2Ptr
-	ldr r0, [r0]
-	ldr r1, =0x00000cb2
-	adds r0, r1
-	ldrh r5, [r0]
-	cmp r7, r6
-	beq _080B5352
-	bl DoGlobalWildEncounterDiceRoll
-	lsls r0, 24
-	cmp r0, 0
-	bne _080B5352
-	b _080B54FE
-_080B5352:
-	ldr r1, =gUnknown_08553894
-	lsls r0, r5, 2
-	adds r0, r5
-	lsls r0, 2
-	adds r1, 0x4
-	adds r4, r0, r1
-	ldr r0, [r4]
-	ldrb r0, [r0]
-	movs r1, 0
-	bl DoWildEncounterRateTest
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _080B5372
-	b _080B54FE
-_080B5372:
-	ldr r0, [r4]
-	movs r1, 0
-	movs r2, 0x2
-	bl TryGenerateWildMon
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _080B5386
-	b _080B54FE
-_080B5386:
-	bl sub_81A9C04
-	b _080B54F6
-	.pool
-_080B539C:
-	lsls r0, r6, 24
-	lsrs r4, r0, 24
-	adds r0, r4, 0
-	bl MetatileBehavior_IsLandWildEncounter
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080B543C
-	ldr r1, =gWildMonHeaders
-	lsls r2, r5, 2
-	adds r0, r2, r5
-	lsls r0, 2
-	adds r1, 0x4
-	adds r0, r1
-	ldr r0, [r0]
-	adds r4, r2, 0
-	cmp r0, 0
-	bne _080B53C4
-	b _080B54FE
-_080B53C4:
-	cmp r7, r6
-	beq _080B53D4
-	bl DoGlobalWildEncounterDiceRoll
-	lsls r0, 24
-	cmp r0, 0
-	bne _080B53D4
-	b _080B54FE
-_080B53D4:
-	ldr r1, =gWildMonHeaders
-	adds r0, r4, r5
-	lsls r0, 2
-	adds r1, 0x4
-	adds r0, r1
-	ldr r0, [r0]
-	ldrb r0, [r0]
-	movs r1, 0
-	bl DoWildEncounterRateTest
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _080B53F2
-	b _080B54FE
-_080B53F2:
-	bl TryStartRoamerEncounter
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _080B54BA
-	bl DoMassOutbreakEncounterTest
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080B5418
-	movs r0, 0x3
-	bl SetUpMassOutbreakEncounter
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _080B54F6
-_080B5418:
-	ldr r1, =gWildMonHeaders
-	adds r0, r4, r5
-	lsls r0, 2
-	adds r1, 0x4
-	adds r0, r1
-	ldr r0, [r0]
-	movs r1, 0
-	movs r2, 0x3
-	bl TryGenerateWildMon
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _080B54F6
-	b _080B54FE
-	.pool
-_080B543C:
-	adds r0, r4, 0
-	bl MetatileBehavior_IsWaterWildEncounter
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _080B5464
-	movs r0, 0x8
-	bl TestPlayerAvatarFlags
-	lsls r0, 24
-	cmp r0, 0
-	beq _080B54FE
-	adds r0, r4, 0
-	bl MetatileBehavior_IsBridge
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080B54FE
-_080B5464:
-	bl sub_80B5260
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _080B54FE
-	ldr r1, =gWildMonHeaders
-	lsls r2, r5, 2
-	adds r0, r2, r5
-	lsls r0, 2
-	adds r1, 0x8
-	adds r0, r1
-	ldr r0, [r0]
-	adds r4, r2, 0
-	cmp r0, 0
-	beq _080B54FE
-	cmp r8, r9
-	beq _080B5492
-	bl DoGlobalWildEncounterDiceRoll
-	lsls r0, 24
-	cmp r0, 0
-	beq _080B54FE
-_080B5492:
-	ldr r1, =gWildMonHeaders
-	adds r0, r4, r5
-	lsls r0, 2
-	adds r1, 0x8
-	adds r4, r0, r1
-	ldr r0, [r4]
-	ldrb r0, [r0]
-	movs r1, 0
-	bl DoWildEncounterRateTest
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080B54FE
-	bl TryStartRoamerEncounter
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080B54E4
-_080B54BA:
-	ldr r0, =gSaveBlock1Ptr
-	ldr r0, [r0]
-	ldr r1, =0x000031dc
-	adds r0, r1
-	ldrb r0, [r0, 0xC]
-	bl IsWildLevelAllowedByRepel
-	lsls r0, 24
-	cmp r0, 0
-	beq _080B54FE
-	bl sub_80B072C
-	movs r0, 0x1
-	b _080B5500
-	.pool
-_080B54E4:
-	ldr r0, [r4]
-	movs r1, 0x1
-	movs r2, 0x3
-	bl TryGenerateWildMon
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080B54FE
-_080B54F6:
-	bl sub_80B0698
-	movs r0, 0x1
-	b _080B5500
-_080B54FE:
-	movs r0, 0
-_080B5500:
-	pop {r3,r4}
-	mov r8, r3
-	mov r9, r4
-	pop {r4-r7}
-	pop {r1}
-	bx r1
-	thumb_func_end is_it_battle_time_2
-
-	thumb_func_start rock_smash_wild_pokemon_encounter
-rock_smash_wild_pokemon_encounter: @ 80B550C
-	push {r4,lr}
-	bl GetCurrentMapWildMonHeaderId
-	lsls r0, 16
-	lsrs r2, r0, 16
-	ldr r0, =0x0000ffff
-	cmp r2, r0
-	beq _080B5568
-	ldr r1, =gWildMonHeaders
-	lsls r0, r2, 2
-	adds r0, r2
-	lsls r0, 2
-	adds r1, 0xC
-	adds r0, r1
-	ldr r4, [r0]
-	cmp r4, 0
-	beq _080B5554
-	ldrb r0, [r4]
-	movs r1, 0x1
-	bl DoWildEncounterRateTest
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080B5568
-	adds r0, r4, 0
-	movs r1, 0x2
-	movs r2, 0x3
-	bl TryGenerateWildMon
-	lsls r0, 24
-	lsrs r4, r0, 24
-	cmp r4, 0x1
-	bne _080B5568
-	bl sub_80B0698
-_080B5554:
-	ldr r0, =gSpecialVar_Result
-	strh r4, [r0]
-	b _080B556E
-	.pool
-_080B5568:
-	ldr r1, =gSpecialVar_Result
-	movs r0, 0
-	strh r0, [r1]
-_080B556E:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end rock_smash_wild_pokemon_encounter
-
-	thumb_func_start SweetScentWildEncounter
-SweetScentWildEncounter: @ 80B5578
-	push {r4,r5,lr}
-	sub sp, 0x4
-	mov r5, sp
-	adds r5, 0x2
-	mov r0, sp
-	adds r1, r5, 0
-	bl PlayerGetDestCoords
-	bl GetCurrentMapWildMonHeaderId
-	lsls r0, 16
-	lsrs r4, r0, 16
-	ldr r0, =0x0000ffff
-	cmp r4, r0
-	bne _080B562C
-	ldr r0, =gMapHeader
-	ldrh r1, [r0, 0x12]
-	movs r0, 0xB3
-	lsls r0, 1
-	cmp r1, r0
-	bne _080B55E4
-	bl sub_81A7D00
-	lsls r0, 24
-	lsrs r4, r0, 24
-	ldr r1, =gUnknown_08553A14
-	lsls r0, r4, 2
-	adds r0, r4
-	lsls r0, 2
-	adds r1, 0x4
-	adds r0, r1
-	ldr r0, [r0]
-	movs r1, 0
-	movs r2, 0
-	bl TryGenerateWildMon
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _080B55CA
-	b _080B56F2
-_080B55CA:
-	movs r0, 0
-	bl sub_81A7B90
-	bl sub_80B06B0
-	movs r0, 0x1
-	b _080B56F4
-	.pool
-_080B55E4:
-	ldr r0, =0x00000169
-	cmp r1, r0
-	beq _080B55EC
-	b _080B56F2
-_080B55EC:
-	ldr r0, =gSaveBlock2Ptr
-	ldr r0, [r0]
-	ldr r1, =0x00000cb2
-	adds r0, r1
-	ldrh r4, [r0]
-	ldr r1, =gUnknown_08553894
-	lsls r0, r4, 2
-	adds r0, r4
-	lsls r0, 2
-	adds r1, 0x4
-	adds r0, r1
-	ldr r0, [r0]
-	movs r1, 0
-	movs r2, 0
-	bl TryGenerateWildMon
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080B56F2
-	bl sub_81A9C04
-	b _080B56EA
-	.pool
-_080B562C:
-	mov r0, sp
-	movs r2, 0
-	ldrsh r0, [r0, r2]
-	movs r2, 0
-	ldrsh r1, [r5, r2]
-	bl MapGridGetMetatileBehaviorAt
-	lsls r0, 24
-	lsrs r0, 24
-	bl MetatileBehavior_IsLandWildEncounter
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080B568C
-	ldr r1, =gWildMonHeaders
-	lsls r0, r4, 2
-	adds r0, r4
-	lsls r0, 2
-	adds r1, 0x4
-	adds r0, r1
-	ldr r4, [r0]
-	cmp r4, 0
-	beq _080B56F2
-	bl TryStartRoamerEncounter
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _080B56D4
-	bl DoMassOutbreakEncounterTest
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080B5680
-	movs r0, 0
-	bl SetUpMassOutbreakEncounter
-	b _080B56EA
-	.pool
-_080B5680:
-	adds r0, r4, 0
-	movs r1, 0
-	movs r2, 0
-	bl TryGenerateWildMon
-	b _080B56EA
-_080B568C:
-	mov r0, sp
-	movs r1, 0
-	ldrsh r0, [r0, r1]
-	movs r2, 0
-	ldrsh r1, [r5, r2]
-	bl MapGridGetMetatileBehaviorAt
-	lsls r0, 24
-	lsrs r0, 24
-	bl MetatileBehavior_IsWaterWildEncounter
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080B56F2
-	bl sub_80B5260
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	beq _080B56F2
-	ldr r1, =gWildMonHeaders
-	lsls r0, r4, 2
-	adds r0, r4
-	lsls r0, 2
-	adds r1, 0x8
-	adds r0, r1
-	ldr r4, [r0]
-	cmp r4, 0
-	beq _080B56F2
-	bl TryStartRoamerEncounter
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x1
-	bne _080B56E0
-_080B56D4:
-	bl sub_80B072C
-	movs r0, 0x1
-	b _080B56F4
-	.pool
-_080B56E0:
-	adds r0, r4, 0
-	movs r1, 0x1
-	movs r2, 0
-	bl TryGenerateWildMon
-_080B56EA:
-	bl sub_80B0698
-	movs r0, 0x1
-	b _080B56F4
-_080B56F2:
-	movs r0, 0
-_080B56F4:
-	add sp, 0x4
-	pop {r4,r5}
-	pop {r1}
-	bx r1
-	thumb_func_end SweetScentWildEncounter
-
-	thumb_func_start GetFishingWildMonListHeader
-GetFishingWildMonListHeader: @ 80B56FC
-	push {lr}
-	bl GetCurrentMapWildMonHeaderId
-	lsls r0, 16
-	lsrs r2, r0, 16
-	ldr r0, =0x0000ffff
-	cmp r2, r0
-	beq _080B572C
-	ldr r0, =gWildMonHeaders
-	lsls r1, r2, 2
-	adds r1, r2
-	lsls r1, 2
-	adds r0, 0x10
-	adds r1, r0
-	ldr r0, [r1]
-	cmp r0, 0
-	beq _080B572C
-	movs r0, 0x1
-	b _080B572E
-	.pool
-_080B572C:
-	movs r0, 0
-_080B572E:
-	pop {r1}
-	bx r1
-	thumb_func_end GetFishingWildMonListHeader
 
 	thumb_func_start sub_80B5734
 sub_80B5734: @ 80B5734
@@ -640,7 +49,7 @@ _080B5784:
 	bl IncrementGameStat
 	adds r0, r4, 0
 	bl sub_80EDA3C
-	bl sub_80B0698
+	bl BattleSetup_StartWildBattle
 	pop {r4,r5}
 	pop {r0}
 	bx r0
diff --git a/data/scripts/field_move_scripts.inc b/data/scripts/field_move_scripts.inc
index fd2ff3b01..76f2aac6b 100644
--- a/data/scripts/field_move_scripts.inc
+++ b/data/scripts/field_move_scripts.inc
@@ -116,7 +116,7 @@ Route111_EventScript_2907FB:: @ 82907FB
 	specialvar VAR_RESULT, sub_81393FC
 	compare_var_to_value VAR_RESULT, 1
 	goto_eq Route111_EventScript_290829
-	special rock_smash_wild_pokemon_encounter
+	special RockSmashWildEncounter
 	compare_var_to_value VAR_RESULT, 0
 	goto_eq Route111_EventScript_290829
 	waitstate
diff --git a/data/specials.inc b/data/specials.inc
index d9cfcc6b0..e9e608880 100644
--- a/data/specials.inc
+++ b/data/specials.inc
@@ -181,7 +181,7 @@ gSpecials:: @ 81DBA64
 	def_special sub_813BF60
 	def_special sub_813BA60
 	def_special sub_813BF7C
-	def_special rock_smash_wild_pokemon_encounter
+	def_special RockSmashWildEncounter
 	def_special GabbyAndTyGetBattleNum
 	def_special GabbyAndTyAfterInterview
 	def_special GabbyAndTyBeforeInterview
diff --git a/data/wild_encounter.s b/data/wild_encounter.s
index 8540fefac..d45acf415 100644
--- a/data/wild_encounter.s
+++ b/data/wild_encounter.s
@@ -9,10 +9,10 @@
 
 	.incbin "baserom.gba", 0x55370c, 0x188
 
-gUnknown_08553894:: @ 8553894
+gBattlePyramidWildMonHeaders:: @ 8553894
 	.incbin "baserom.gba", 0x553894, 0x180
 
-gUnknown_08553A14:: @ 8553A14
+gBattlePikeWildMonHeaders:: @ 8553A14
 	.incbin "baserom.gba", 0x553a14, 0x64
 
 gUnknown_08553A78:: @ 8553A78
diff --git a/include/battle_setup.h b/include/battle_setup.h
index e4acd8601..0168022cc 100644
--- a/include/battle_setup.h
+++ b/include/battle_setup.h
@@ -4,6 +4,9 @@
 void BattleSetup_StartScriptedWildBattle(void);
 u8 BattleSetup_GetTerrainId(void);
 u8 *BattleSetup_ConfigureTrainerBattle(const u8 *data);
+void BattleSetup_StartBattlePikeWildBattle(void);
+void BattleSetup_StartWildBattle(void);
+void BattleSetup_StartRoamerBattle(void);
 
 u8 HasTrainerAlreadyBeenFought(u16);
 void trainer_flag_set(u16);
diff --git a/include/flags.h b/include/flags.h
index 6dfae9ab2..7cc310633 100644
--- a/include/flags.h
+++ b/include/flags.h
@@ -1,6 +1,8 @@
 #ifndef GUARD_FLAGS_H
 #define GUARD_FLAGS_H
 
+#define FLAG_LEGENDARIES_IN_SOOTOPOLIS 0x53
+
 #define FLAG_TRAINER_FLAG_START  0x500
 #define TRAINERS_FLAG_NO    0x356
 #define CODE_FLAGS          (FLAG_TRAINER_FLAG_START + TRAINERS_FLAG_NO + 0xA) // 0x860
diff --git a/include/global.h b/include/global.h
index 7547d523b..490ebe64e 100644
--- a/include/global.h
+++ b/include/global.h
@@ -215,7 +215,9 @@ struct SaveBlock2
     /*0xCA9*/ u8 field_CA9_d : 1;   // 0x20
     /*0xCA9*/ u8 field_CA9_e : 1;   // 0x40
     /*0xCA9*/ u8 field_CA9_f : 1;   // 0x80
-    /*0xCAA*/ u16 field_CAA[0x2e];
+    /*0xCAA*/ u16 field_CAA[4];
+    /*0xCB2*/ u16 battlePyramidWildHeaderId;
+    /*0xCB4*/ u8 field_CB4[88];
     /*0xD06*/ u8 field_D06;
     /*0xD07*/ u8 field_D07;
     /*0xd08*/ u8 filler_D08[0x112];
@@ -590,7 +592,7 @@ struct SaveBlock1
     /*0x3030*/ struct DaycareData daycare;
     /*0x3150*/ struct LinkBattleRecord linkBattleRecords[5];
     /*0x31A0*/ u8 unk_31A0;
-    /*0x31A1*/ u8 filler_31A1[7];
+    /*0x31A1*/ u8 filler_31A1[3];
     /*0x31A8*/ u8 giftRibbons[52];
     /*0x31DC*/ struct Roamer roamer;
     /*0x31F8*/ struct EnigmaBerry enigmaBerry;
diff --git a/src/wild_encounter.c b/src/wild_encounter.c
index 7d4cc7794..6238f6aab 100644
--- a/src/wild_encounter.c
+++ b/src/wild_encounter.c
@@ -11,6 +11,8 @@
 #include "event_data.h"
 #include "safari_zone.h"
 #include "pokeblock.h"
+#include "battle_setup.h"
+#include "roamer.h"
 
 EWRAM_DATA u8 sWildEncountersDisabled = 0;
 EWRAM_DATA u32 sFeebasRngValue = 0;
@@ -18,6 +20,12 @@ EWRAM_DATA u32 sFeebasRngValue = 0;
 #define NUM_FEEBAS_SPOTS 6
 
 extern const u16 gRoute119WaterTileData[];
+extern const struct WildPokemonHeader gBattlePikeWildMonHeaders[];
+extern const struct WildPokemonHeader gBattlePyramidWildMonHeaders[];
+
+extern u8 GetBattlePikeWildMonHeaderId(void);
+extern bool32 TryGenerateBattlePikeWildMon(bool8 checkKeenEyeIntimidate);
+extern void GenerateBattlePyramidWildMon(void);
 
 // this file's functions
 u16 FeebasRandom(void);
@@ -374,7 +382,7 @@ enum
 #define WILD_CHECK_REPEL    0x1
 #define WILD_CHECK_KEEN_EYE 0x2
 
-bool8 TryGenerateWildMon(struct WildPokemonInfo *wildMonInfo, u8 area, u8 flags)
+bool8 TryGenerateWildMon(const struct WildPokemonInfo *wildMonInfo, u8 area, u8 flags)
 {
     u8 wildMonIndex = 0;
     u8 level;
@@ -481,3 +489,250 @@ bool8 DoWildEncounterRateTest(u32 encounterRate, bool8 ignoreAbility)
         encounterRate = 2880;
     return DoWildEncounterRateDiceRoll(encounterRate);
 }
+
+bool8 DoGlobalWildEncounterDiceRoll(void)
+{
+    if (Random() % 100 >= 60)
+        return FALSE;
+    else
+        return TRUE;
+}
+
+bool8 AreLegendariesInSootopolisPreventingEncounters(void)
+{
+    if (gSaveBlock1Ptr->location.mapGroup != MAP_GROUP_SOOTOPOLIS_CITY
+        || gSaveBlock1Ptr->location.mapNum != MAP_ID_SOOTOPOLIS_CITY)
+    {
+        return FALSE;
+    }
+
+    return FlagGet(FLAG_LEGENDARIES_IN_SOOTOPOLIS);
+}
+
+bool8 StandardWildEncounter(u16 currMetaTileBehavior, u16 previousMetaTileBehavior)
+{
+    u16 headerId;
+    struct Roamer *roamer;
+
+    if (sWildEncountersDisabled == TRUE)
+        return FALSE;
+
+    headerId = GetCurrentMapWildMonHeaderId();
+    if (headerId == 0xFFFF) // invalid
+    {
+        if (gMapHeader.mapDataId == 0x166)
+        {
+            headerId = GetBattlePikeWildMonHeaderId();
+            if (previousMetaTileBehavior != currMetaTileBehavior && !DoGlobalWildEncounterDiceRoll())
+                return FALSE;
+            if (DoWildEncounterRateTest(gBattlePikeWildMonHeaders[headerId].landMonsInfo->encounterRate, FALSE) != TRUE)
+                return FALSE;
+            if (TryGenerateWildMon(gBattlePikeWildMonHeaders[headerId].landMonsInfo, WILD_AREA_LAND, WILD_CHECK_KEEN_EYE) != TRUE)
+                return FALSE;
+            if (!TryGenerateBattlePikeWildMon(TRUE))
+                return FALSE;
+
+            BattleSetup_StartBattlePikeWildBattle();
+            return TRUE;
+        }
+        if (gMapHeader.mapDataId == 0x169)
+        {
+            headerId = gSaveBlock2Ptr->battlePyramidWildHeaderId;
+            if (previousMetaTileBehavior != currMetaTileBehavior && !DoGlobalWildEncounterDiceRoll())
+                return FALSE;
+            if (DoWildEncounterRateTest(gBattlePyramidWildMonHeaders[headerId].landMonsInfo->encounterRate, FALSE) != TRUE)
+                return FALSE;
+            if (TryGenerateWildMon(gBattlePyramidWildMonHeaders[headerId].landMonsInfo, WILD_AREA_LAND, WILD_CHECK_KEEN_EYE) != TRUE)
+                return FALSE;
+
+            GenerateBattlePyramidWildMon();
+            BattleSetup_StartWildBattle();
+            return TRUE;
+        }
+    }
+    else
+    {
+        if (MetatileBehavior_IsLandWildEncounter(currMetaTileBehavior) == TRUE)
+        {
+            if (gWildMonHeaders[headerId].landMonsInfo == NULL)
+                return FALSE;
+            if (previousMetaTileBehavior != currMetaTileBehavior && !DoGlobalWildEncounterDiceRoll())
+                return FALSE;
+            if (DoWildEncounterRateTest(gWildMonHeaders[headerId].landMonsInfo->encounterRate, FALSE) != TRUE)
+                return FALSE;
+
+            if (TryStartRoamerEncounter() == TRUE)
+            {
+                roamer = &gSaveBlock1Ptr->roamer;
+                if (!IsWildLevelAllowedByRepel(roamer->level))
+                    return FALSE;
+
+                BattleSetup_StartRoamerBattle();
+                return TRUE;
+            }
+            else
+            {
+                if (DoMassOutbreakEncounterTest() == TRUE && SetUpMassOutbreakEncounter(WILD_CHECK_REPEL | WILD_CHECK_KEEN_EYE) == TRUE)
+                {
+                    BattleSetup_StartWildBattle();
+                    return TRUE;
+                }
+
+                // try a regular wild land encounter
+                if (TryGenerateWildMon(gWildMonHeaders[headerId].landMonsInfo, WILD_AREA_LAND, WILD_CHECK_REPEL | WILD_CHECK_KEEN_EYE) == TRUE)
+                {
+                    BattleSetup_StartWildBattle();
+                    return TRUE;
+                }
+
+                return FALSE;
+            }
+        }
+        else if (MetatileBehavior_IsWaterWildEncounter(currMetaTileBehavior) == TRUE
+                 || (TestPlayerAvatarFlags(PLAYER_AVATAR_FLAG_SURFING) && MetatileBehavior_IsBridge(currMetaTileBehavior) == TRUE))
+        {
+            if (AreLegendariesInSootopolisPreventingEncounters() == TRUE)
+                return FALSE;
+            if (gWildMonHeaders[headerId].waterMonsInfo == NULL)
+                return FALSE;
+            if (previousMetaTileBehavior != currMetaTileBehavior && !DoGlobalWildEncounterDiceRoll())
+                return FALSE;
+            if (DoWildEncounterRateTest(gWildMonHeaders[headerId].waterMonsInfo->encounterRate, FALSE) != TRUE)
+                return FALSE;
+
+            if (TryStartRoamerEncounter() == TRUE)
+            {
+                roamer = &gSaveBlock1Ptr->roamer;
+                if (!IsWildLevelAllowedByRepel(roamer->level))
+                    return FALSE;
+
+                BattleSetup_StartRoamerBattle();
+                return TRUE;
+            }
+            else // try a regular surfing encounter
+            {
+                if (TryGenerateWildMon(gWildMonHeaders[headerId].waterMonsInfo, WILD_AREA_WATER, WILD_CHECK_REPEL | WILD_CHECK_KEEN_EYE) == TRUE)
+                {
+                    BattleSetup_StartWildBattle();
+                    return TRUE;
+                }
+
+                return FALSE;
+            }
+        }
+    }
+
+    return FALSE;
+}
+
+void RockSmashWildEncounter(void)
+{
+    u16 headerId = GetCurrentMapWildMonHeaderId();
+
+    if (headerId != 0xFFFF)
+    {
+        const struct WildPokemonInfo *wildPokemonInfo = gWildMonHeaders[headerId].rockSmashMonsInfo;
+
+        if (wildPokemonInfo == NULL)
+        {
+            gSpecialVar_Result = FALSE;
+        }
+        else if (DoWildEncounterRateTest(wildPokemonInfo->encounterRate, 1) == TRUE
+         && TryGenerateWildMon(wildPokemonInfo, 2, WILD_CHECK_REPEL | WILD_CHECK_KEEN_EYE) == TRUE)
+        {
+            BattleSetup_StartWildBattle();
+            gSpecialVar_Result = TRUE;
+        }
+        else
+        {
+            gSpecialVar_Result = FALSE;
+        }
+    }
+    else
+    {
+        gSpecialVar_Result = FALSE;
+    }
+}
+
+bool8 SweetScentWildEncounter(void)
+{
+    s16 x, y;
+    u16 headerId;
+
+    PlayerGetDestCoords(&x, &y);
+    headerId = GetCurrentMapWildMonHeaderId();
+    if (headerId == 0xFFFF) // invalid
+    {
+        if (gMapHeader.mapDataId == 0x166)
+        {
+            headerId = GetBattlePikeWildMonHeaderId();
+            if (TryGenerateWildMon(gBattlePikeWildMonHeaders[headerId].landMonsInfo, WILD_AREA_LAND, 0) != TRUE)
+                return FALSE;
+
+            TryGenerateBattlePikeWildMon(FALSE);
+            BattleSetup_StartBattlePikeWildBattle();
+            return TRUE;
+        }
+        if (gMapHeader.mapDataId == 0x169)
+        {
+            headerId = gSaveBlock2Ptr->battlePyramidWildHeaderId;
+            if (TryGenerateWildMon(gBattlePyramidWildMonHeaders[headerId].landMonsInfo, WILD_AREA_LAND, 0) != TRUE)
+                return FALSE;
+
+            GenerateBattlePyramidWildMon();
+            BattleSetup_StartWildBattle();
+            return TRUE;
+        }
+    }
+    else
+    {
+        if (MetatileBehavior_IsLandWildEncounter(MapGridGetMetatileBehaviorAt(x, y)) == TRUE)
+        {
+            if (gWildMonHeaders[headerId].landMonsInfo == NULL)
+                return FALSE;
+
+            if (TryStartRoamerEncounter() == TRUE)
+            {
+                BattleSetup_StartRoamerBattle();
+                return TRUE;
+            }
+
+            if (DoMassOutbreakEncounterTest() == TRUE)
+                SetUpMassOutbreakEncounter(0);
+            else
+                TryGenerateWildMon(gWildMonHeaders[headerId].landMonsInfo, WILD_AREA_LAND, 0);
+
+            BattleSetup_StartWildBattle();
+            return TRUE;
+        }
+        else if (MetatileBehavior_IsWaterWildEncounter(MapGridGetMetatileBehaviorAt(x, y)) == TRUE)
+        {
+            if (AreLegendariesInSootopolisPreventingEncounters() == TRUE)
+                return FALSE;
+            if (gWildMonHeaders[headerId].waterMonsInfo == NULL)
+                return FALSE;
+
+            if (TryStartRoamerEncounter() == TRUE)
+            {
+                BattleSetup_StartRoamerBattle();
+                return TRUE;
+            }
+
+            TryGenerateWildMon(gWildMonHeaders[headerId].waterMonsInfo, WILD_AREA_WATER, 0);
+            BattleSetup_StartWildBattle();
+            return TRUE;
+        }
+    }
+
+    return FALSE;
+}
+
+bool8 DoesCurrentMapHaveFishingMons(void)
+{
+    u16 headerId = GetCurrentMapWildMonHeaderId();
+
+    if (headerId != 0xFFFF && gWildMonHeaders[headerId].fishingMonsInfo != NULL)
+        return TRUE;
+    else
+        return FALSE;
+}