Merge branch 'master' into pokenav-decomp-again

8 files changed, 351 insertions, 253 deletions

diff --git a/include/constants/battle_frontier.h b/include/constants/battle_frontier.h
index ca9e3bc9f..1224c0f31 100644
--- a/include/constants/battle_frontier.h
+++ b/include/constants/battle_frontier.h
@@ -10,6 +10,8 @@
 #define FRONTIER_FACILITY_PIKE 5
 #define FRONTIER_FACILITY_PYRAMID 6
 #define NUM_FRONTIER_FACILITIES 7
+// The multiplayer battle colosseum rooms re-use VAR_FRONTIER_FACILITY.
+#define FRONTIER_FACILITY_DOUBLE_COLOSSEUM 9
 
 #define TENT_VERDANTURF 2
 #define TENT_FALLARBOR 3
diff --git a/include/constants/easy_chat.h b/include/constants/easy_chat.h
index 2c437c88e..50f5994f4 100644
--- a/include/constants/easy_chat.h
+++ b/include/constants/easy_chat.h
@@ -1,6 +1,33 @@
 #ifndef GUARD_CONSTANTS_EASY_CHAT_H
 #define GUARD_CONSTANTS_EASY_CHAT_H
 
+#define EASY_CHAT_TYPE_PROFILE                 0
+#define EASY_CHAT_TYPE_BATTLE_START            1
+#define EASY_CHAT_TYPE_BATTLE_WON              2
+#define EASY_CHAT_TYPE_BATTLE_LOST             3
+#define EASY_CHAT_TYPE_MAIL                    4
+#define EASY_CHAT_TYPE_INTERVIEW               5
+#define EASY_CHAT_TYPE_BARD_SONG               6
+#define EASY_CHAT_TYPE_FAN_CLUB                7
+#define EASY_CHAT_TYPE_UNK_8                   8
+#define EASY_CHAT_TYPE_TRENDY_PHRASE           9
+#define EASY_CHAT_TYPE_GABBY_AND_TY            10
+#define EASY_CHAT_TYPE_CONTEST_INTERVIEW       11
+#define EASY_CHAT_TYPE_BATTLE_TOWER_INTERVIEW  12
+#define EASY_CHAT_TYPE_GOOD_SAYING             13
+#define EASY_CHAT_TYPE_FAN_QUESTION            14
+#define EASY_CHAT_TYPE_QUIZ_ANSWER             15
+#define EASY_CHAT_TYPE_QUIZ_QUESTION           16
+#define EASY_CHAT_TYPE_QUIZ_SET_QUESTION       17
+#define EASY_CHAT_TYPE_QUIZ_SET_ANSWER         18
+#define EASY_CHAT_TYPE_APPRENTICE              19
+#define EASY_CHAT_TYPE_QUESTIONNAIRE           20
+
+#define EASY_CHAT_PERSON_REPORTER_MALE   0
+#define EASY_CHAT_PERSON_REPORTER_FEMALE 1
+#define EASY_CHAT_PERSON_BOY             2
+#define EASY_CHAT_PERSON_DISPLAY_NONE    3
+
 #define EC_GROUP_POKEMON        0x0
 #define EC_GROUP_TRAINER        0x1
 #define EC_GROUP_STATUS         0x2
@@ -23,6 +50,7 @@
 #define EC_GROUP_MOVE_2         0x13
 #define EC_GROUP_TRENDY_SAYING  0x14
 #define EC_GROUP_POKEMON_2      0x15
+#define EC_NUM_GROUPS           0x16
 
 // TRAINER
 #define EC_WORD_I_CHOOSE_YOU  (EC_GROUP_TRAINER << 9) | 0x0
@@ -1075,5 +1103,6 @@
 
 #define EC_GROUP(word) ((word) >> 9)
 #define EC_INDEX(word) ((word) & 0x1FF)
+#define EC_WORD(group, index) ((((group) & 0x7F) << 9) | ((index) & 0x1FF))
 
 #endif  // GUARD_CONSTANTS_EASY_CHAT_H
diff --git a/include/constants/flags.h b/include/constants/flags.h
index b440ba78b..230fbabaf 100644
--- a/include/constants/flags.h
+++ b/include/constants/flags.h
@@ -236,7 +236,7 @@
 #define FLAG_MET_WAILMER_TRAINER             0xDA
 #define FLAG_EVIL_LEADER_PLEASE_STOP         0xDB
 
-#define FLAG_UNUSED_0x0DC                    0xDC // Unused Flag
+#define FLAG_NEVER_SET_0x0DC                 0xDC // This flag is read, but never written to
 
 #define FLAG_RECEIVED_GO_GOGGLES             0xDD
 #define FLAG_WINGULL_SENT_ON_ERRAND          0xDE
@@ -1548,7 +1548,7 @@
 
 // Special Flags (Unknown)
 #define SPECIAL_FLAGS_START                                        0x4000
-#define FLAG_SPECIAL_FLAG_0x4000                                   0x4000
+#define FLAG_HIDE_MAP_NAME_POPUP                                   0x4000
 #define FLAG_SPECIAL_FLAG_0x4001                                   0x4001
 #define FLAG_SPECIAL_FLAG_0x4002                                   0x4002
 #define FLAG_SPECIAL_FLAG_0x4003                                   0x4003
diff --git a/include/constants/map_scripts.h b/include/constants/map_scripts.h
new file mode 100644
index 000000000..d5fd40156
--- /dev/null
+++ b/include/constants/map_scripts.h
@@ -0,0 +1,12 @@
+#ifndef GUARD_CONSTANTS_MAP_SCRIPTS_H
+#define GUARD_CONSTANTS_MAP_SCRIPTS_H
+
+#define MAP_SCRIPT_ON_LOAD 1
+#define MAP_SCRIPT_ON_FRAME_TABLE 2
+#define MAP_SCRIPT_ON_TRANSITION 3
+#define MAP_SCRIPT_ON_WARP_INTO_MAP_TABLE 4
+#define MAP_SCRIPT_ON_RESUME 5
+#define MAP_SCRIPT_ON_DIVE_WARP 6
+#define MAP_SCRIPT_ON_RETURN_TO_FIELD 7
+
+#endif // GUARD_CONSTANTS_MAP_SCRIPTS_H
\ No newline at end of file
diff --git a/include/constants/map_types.h b/include/constants/map_types.h
index 504575859..8d071fd41 100755
--- a/include/constants/map_types.h
+++ b/include/constants/map_types.h
@@ -1,14 +1,14 @@
 #ifndef GUARD_CONSTANTS_MAP_TYPES_H
 #define GUARD_CONSTANTS_MAP_TYPES_H
 
-#define MAP_TYPE_0           0
+#define MAP_TYPE_UNUSED_1    0
 #define MAP_TYPE_TOWN        1
 #define MAP_TYPE_CITY        2
 #define MAP_TYPE_ROUTE       3
 #define MAP_TYPE_UNDERGROUND 4
 #define MAP_TYPE_UNDERWATER  5
-#define MAP_TYPE_6           6
-#define MAP_TYPE_7           7
+#define MAP_TYPE_OCEAN_ROUTE 6
+#define MAP_TYPE_UNUSED_2    7
 #define MAP_TYPE_INDOOR      8
 #define MAP_TYPE_SECRET_BASE 9
 
diff --git a/include/constants/trainer_hill.h b/include/constants/trainer_hill.h
new file mode 100644
index 000000000..e231a6043
--- /dev/null
+++ b/include/constants/trainer_hill.h
@@ -0,0 +1,29 @@
+#ifndef GUARD_CONSTANTS_TRAINER_HILL_H
+#define GUARD_CONSTANTS_TRAINER_HILL_H
+
+#define TRAINER_HILL_FUNC_START 0
+#define TRAINER_HILL_FUNC_1 1
+#define TRAINER_HILL_FUNC_2 2
+#define TRAINER_HILL_FUNC_3 3
+#define TRAINER_HILL_FUNC_RESUME_TIMER 4
+#define TRAINER_HILL_FUNC_SET_LOST 5
+#define TRAINER_HILL_FUNC_GET_CHALLENGE_STATUS 6
+#define TRAINER_HILL_FUNC_7 7
+#define TRAINER_HILL_FUNC_8 8
+#define TRAINER_HILL_FUNC_9 9
+#define TRAINER_HILL_FUNC_10 10
+#define TRAINER_HILL_FUNC_11 11
+#define TRAINER_HILL_FUNC_12 12
+#define TRAINER_HILL_FUNC_13 13
+#define TRAINER_HILL_FUNC_14 14
+#define TRAINER_HILL_FUNC_15 15
+#define TRAINER_HILL_FUNC_16 16
+#define TRAINER_HILL_FUNC_SET_TAG 17
+
+// Values returned by the TrainerHillGetChallengeStatus
+// function.
+#define TRAINER_HILL_PLAYER_STATUS_LOST 0
+#define TRAINER_HILL_PLAYER_STATUS_ECARD_SCANNED 1
+#define TRAINER_HILL_PLAYER_STATUS_NORMAL 2
+
+#endif
\ No newline at end of file
diff --git a/include/constants/vars.h b/include/constants/vars.h
index fedc85657..c025d62fc 100644
--- a/include/constants/vars.h
+++ b/include/constants/vars.h
@@ -1,7 +1,7 @@
 #ifndef GUARD_CONSTANTS_VARS_H
 #define GUARD_CONSTANTS_VARS_H
 
-#define VAR_0x3F20                 0x3F20
+#define UNKNOWN_VAR_OFFSET_3F20 0x3F20
 
 #define VARS_START 0x4000
 
@@ -46,257 +46,257 @@
 #define VAR_OBJ_GFX_ID_F           0x401F
 
 // general purpose vars
-#define VAR_RECYCLE_GOODS          0x4020
-#define VAR_REPEL_STEP_COUNT       0x4021
-#define VAR_ICE_STEP_COUNT         0x4022
-#define VAR_STARTER_MON            0x4023 // 0=Treecko, 1=Torchic, 2=Mudkip
-#define VAR_MIRAGE_RND_H           0x4024
-#define VAR_MIRAGE_RND_L           0x4025
-#define VAR_SECRET_BASE_MAP        0x4026
-#define VAR_CYCLING_ROAD_RECORD_COLLISIONS                 0x4027
-#define VAR_CYCLING_ROAD_RECORD_TIME_L                 0x4028
-#define VAR_CYCLING_ROAD_RECORD_TIME_H                 0x4029
-#define VAR_HAPPINESS_STEP_COUNTER 0x402A
-#define VAR_POISON_STEP_COUNTER    0x402B
-#define VAR_RESET_RTC_ENABLE       0x402C
-#define VAR_ENIGMA_BERRY_AVAILABLE 0x402D
-#define VAR_0x402E                 0x402E
+#define VAR_RECYCLE_GOODS                    0x4020
+#define VAR_REPEL_STEP_COUNT                 0x4021
+#define VAR_ICE_STEP_COUNT                   0x4022
+#define VAR_STARTER_MON                      0x4023 // 0=Treecko, 1=Torchic, 2=Mudkip
+#define VAR_MIRAGE_RND_H                     0x4024
+#define VAR_MIRAGE_RND_L                     0x4025
+#define VAR_SECRET_BASE_MAP                  0x4026
+#define VAR_CYCLING_ROAD_RECORD_COLLISIONS   0x4027
+#define VAR_CYCLING_ROAD_RECORD_TIME_L       0x4028
+#define VAR_CYCLING_ROAD_RECORD_TIME_H       0x4029
+#define VAR_HAPPINESS_STEP_COUNTER           0x402A
+#define VAR_POISON_STEP_COUNTER              0x402B
+#define VAR_RESET_RTC_ENABLE                 0x402C
+#define VAR_ENIGMA_BERRY_AVAILABLE           0x402D
+#define VAR_UNUSED_0x402E                    0x402E // Unused Var
 
-#define VAR_FRONTIER_MANIAC_FACILITY        0x402F
-#define VAR_FRONTIER_GAMBLER_FACILITY       0x4030
-#define VAR_FRONTIER_GAMBLER_SET_FACILITY_F 0x4031
-#define VAR_FRONTIER_GAMBLER_AMOUNT_BET     0x4032
-#define VAR_FRONTIER_GAMBLER_PLACED_BET_F   0x4033
+#define VAR_FRONTIER_MANIAC_FACILITY         0x402F
+#define VAR_FRONTIER_GAMBLER_FACILITY        0x4030
+#define VAR_FRONTIER_GAMBLER_SET_FACILITY_F  0x4031
+#define VAR_FRONTIER_GAMBLER_AMOUNT_BET      0x4032
+#define VAR_FRONTIER_GAMBLER_PLACED_BET_F    0x4033
 
-#define VAR_DEOXYS_ROCK_STEP_COUNT 0x4034
-#define VAR_DEOXYS_ROCK_LEVEL      0x4035
-#define VAR_STORAGE_UNKNOWN        0x4036
-#define VAR_0x4037                 0x4037
-#define VAR_0x4038                 0x4038
-#define VAR_0x4039                 0x4039
-#define VAR_0x403A                 0x403A
-#define VAR_REGICE_STEPS_1         0x403B
-#define VAR_REGICE_STEPS_2         0x403C
-#define VAR_REGICE_STEPS_3         0x403D
-#define VAR_ALTERING_CAVE_WILD_SET 0x403E
-#define VAR_0x403F                 0x403F
-#define VAR_DAYS                   0x4040
-#define VAR_FANCLUB_UNKNOWN_1      0x4041
-#define VAR_FANCLUB_UNKNOWN_2      0x4042
-#define VAR_DEPT_STORE_FLOOR       0x4043
-#define VAR_0x4044                 0x4044
-#define VAR_POKELOT_PRIZE          0x4045
-#define VAR_NATIONAL_DEX           0x4046
-#define VAR_SEEDOT_SIZE_RECORD     0x4047
-#define VAR_ASH_GATHER_COUNT       0x4048
-#define VAR_BIRCH_STATE            0x4049
-#define VAR_CRUISE_STEP_COUNT      0x404A
-#define VAR_POKELOT_RND1           0x404B
-#define VAR_POKELOT_RND2           0x404C
-#define VAR_0x404D                 0x404D
-#define VAR_0x404E                 0x404E
-#define VAR_LOTAD_SIZE_RECORD      0x404F
-#define VAR_0x4050                 0x4050
-#define VAR_0x4051                 0x4051
-#define VAR_0x4052                 0x4052
-#define VAR_0x4053                 0x4053
-#define VAR_CURRENT_SECRET_BASE    0x4054
-#define VAR_0x4055                 0x4055
-#define VAR_0x4056                 0x4056
-#define VAR_0x4057                 0x4057
-#define VAR_0x4058                 0x4058
-#define VAR_0x4059                 0x4059
-#define VAR_0x405A                 0x405A
-#define VAR_0x405B                 0x405B
-#define VAR_0x405C                 0x405C
-#define VAR_0x405D                 0x405D
-#define VAR_0x405E                 0x405E
-#define VAR_0x405F                 0x405F
-#define VAR_0x4060                 0x4060
-#define VAR_0x4061                 0x4061
-#define VAR_0x4062                 0x4062
-#define VAR_0x4063                 0x4063
-#define VAR_0x4064                 0x4064
-#define VAR_0x4065                 0x4065
-#define VAR_0x4066                 0x4066
-#define VAR_0x4067                 0x4067
-#define VAR_0x4068                 0x4068
-#define VAR_0x4069                 0x4069
-#define VAR_0x406A                 0x406A
-#define VAR_0x406B                 0x406B
-#define VAR_0x406C                 0x406C
-#define VAR_0x406D                 0x406D
-#define VAR_0x406E                 0x406E
-#define VAR_0x406F                 0x406F
-#define VAR_0x4070                 0x4070
-#define VAR_0x4071                 0x4071
-#define VAR_0x4072                 0x4072
-#define VAR_0x4073                 0x4073
-#define VAR_0x4074                 0x4074
-#define VAR_0x4075                 0x4075
-#define VAR_0x4076                 0x4076
-#define VAR_0x4077                 0x4077
-#define VAR_0x4078                 0x4078
-#define VAR_0x4079                 0x4079
-#define VAR_0x407A                 0x407A
-#define VAR_0x407B                 0x407B
-#define VAR_0x407C                 0x407C
-#define VAR_0x407D                 0x407D
-#define VAR_0x407E                 0x407E
-#define VAR_0x407F                 0x407F
-#define VAR_0x4080                 0x4080
-#define VAR_0x4081                 0x4081
-#define VAR_0x4082                 0x4082
-#define VAR_0x4083                 0x4083
-#define VAR_0x4084                 0x4084
-#define VAR_0x4085                 0x4085
-#define VAR_0x4086                 0x4086
-#define VAR_0x4087                 0x4087
-#define VAR_0x4088                 0x4088
-#define VAR_0x4089                 0x4089
-#define VAR_0x408A                 0x408A
-#define VAR_0x408B                 0x408B
-#define VAR_0x408C                 0x408C
-#define VAR_0x408D                 0x408D
-#define VAR_0x408E                 0x408E
-#define VAR_0x408F                 0x408F
-#define VAR_0x4090                 0x4090
-#define VAR_0x4091                 0x4091
-#define VAR_0x4092                 0x4092
-#define VAR_0x4093                 0x4093
-#define VAR_0x4094                 0x4094
-#define VAR_LILYCOVE_FAN_CLUB_STATE                 0x4095
-#define VAR_0x4096                 0x4096
-#define VAR_0x4097                 0x4097
-#define VAR_0x4098                 0x4098
-#define VAR_0x4099                 0x4099
-#define VAR_RUSTURF_TUNNEL_STATE                 0x409A
-#define VAR_0x409B                 0x409B
-#define VAR_0x409C                 0x409C
-#define VAR_0x409D                 0x409D
-#define VAR_0x409E                 0x409E
-#define VAR_0x409F                 0x409F
-#define VAR_0x40A0                 0x40A0
-#define VAR_0x40A1                 0x40A1
-#define VAR_0x40A2                 0x40A2
-#define VAR_0x40A3                 0x40A3
-#define VAR_0x40A4                 0x40A4
-#define VAR_0x40A5                 0x40A5
-#define VAR_0x40A6                 0x40A6
-#define VAR_0x40A7                 0x40A7
-#define VAR_0x40A8                 0x40A8
-#define VAR_CYCLING_CHALLENGE_STATE                 0x40A9
-#define VAR_0x40AA                 0x40AA
-#define VAR_0x40AB                 0x40AB
-#define VAR_0x40AC                 0x40AC
-#define VAR_0x40AD                 0x40AD
-#define VAR_0x40AE                 0x40AE
-#define VAR_0x40AF                 0x40AF
-#define VAR_0x40B0                 0x40B0
-#define VAR_0x40B1                 0x40B1
-#define VAR_0x40B2                 0x40B2
-#define VAR_WEATHER_INSTITUTE_STATE                 0x40B3
-#define VAR_PORTHOLE_STATE               0x40B4
-#define VAR_0x40B5                 0x40B5
-#define VAR_0x40B6                 0x40B6
-#define VAR_0x40B7                 0x40B7
-#define VAR_0x40B8                 0x40B8
-#define VAR_0x40B9                 0x40B9
-#define VAR_0x40BA                 0x40BA
-#define VAR_0x40BB                 0x40BB
-#define VAR_0x40BC                 0x40BC
-#define VAR_0x40BD                 0x40BD
-#define VAR_0x40BE                 0x40BE
-#define VAR_0x40BF                 0x40BF
-#define VAR_0x40C0                 0x40C0
-#define VAR_0x40C1                 0x40C1
-#define VAR_PACIFIDLOG_TM_RECEIVED_DAY                 0x40C2
-#define VAR_0x40C3                 0x40C3
-#define VAR_0x40C4                 0x40C4
-#define VAR_0x40C5                 0x40C5
-#define VAR_0x40C6                 0x40C6
-#define VAR_0x40C7                 0x40C7
-#define VAR_0x40C8                 0x40C8
-#define VAR_0x40C9                 0x40C9
-#define VAR_0x40CA                 0x40CA
-#define VAR_0x40CB                 0x40CB
-#define VAR_0x40CC                 0x40CC
-#define VAR_0x40CD                 0x40CD
-#define VAR_FRONTIER_BATTLE_MODE                 0x40CE
-#define VAR_FRONTIER_FACILITY      0x40CF
-#define VAR_0x40D0                 0x40D0
-#define VAR_0x40D1                 0x40D1
-#define VAR_0x40D2                 0x40D2
-#define VAR_0x40D3                 0x40D3
-#define VAR_0x40D4                 0x40D4
-#define VAR_0x40D5                 0x40D5
-#define VAR_0x40D6                 0x40D6
-#define VAR_0x40D7                 0x40D7
-#define VAR_0x40D8                 0x40D8
-#define VAR_0x40D9                 0x40D9
-#define VAR_0x40DA                 0x40DA
-#define VAR_0x40DB                 0x40DB
-#define VAR_0x40DC                 0x40DC
-#define VAR_EVENT_PICHU_SLOT       0x40DD
-#define VAR_0x40DE                 0x40DE
-#define VAR_0x40DF                 0x40DF
-#define VAR_0x40E0                 0x40E0
-#define VAR_0x40E1                 0x40E1
-#define VAR_0x40E2                 0x40E2
-#define VAR_0x40E3                 0x40E3
-#define VAR_0x40E4                 0x40E4
-#define VAR_0x40E5                 0x40E5
-#define VAR_DAILY_SLOTS            0x40E6
-#define VAR_DAILY_WILDS            0x40E7
-#define VAR_DAILY_BLENDER          0x40E8
-#define VAR_DAILY_PLANTED_BERRIES  0x40E9
-#define VAR_DAILY_PICKED_BERRIES   0x40EA
-#define VAR_DAILY_ROULETTE         0x40EB
-#define VAR_0x40EC                 0x40EC
-#define VAR_0x40ED                 0x40ED
-#define VAR_0x40EE                 0x40EE
-#define VAR_0x40EF                 0x40EF
-#define VAR_0x40F0                 0x40F0
-#define VAR_DAILY_BP               0x40F1
-#define VAR_0x40F2                 0x40F2
-#define VAR_0x40F3                 0x40F3
-#define VAR_0x40F4                 0x40F4
-#define VAR_0x40F5                 0x40F5
-#define VAR_0x40F6                 0x40F6
-#define VAR_0x40F7                 0x40F7
-#define VAR_0x40F8                 0x40F8
-#define VAR_0x40F9                 0x40F9
-#define VAR_0x40FA                 0x40FA
-#define VAR_0x40FB                 0x40FB
-#define VAR_0x40FC                 0x40FC
-#define VAR_0x40FD                 0x40FD
-#define VAR_0x40FE                 0x40FE
-#define VAR_0x40FF                 0x40FF
+#define VAR_DEOXYS_ROCK_STEP_COUNT           0x4034
+#define VAR_DEOXYS_ROCK_LEVEL                0x4035
+#define VAR_STORAGE_UNKNOWN                  0x4036
+#define VAR_UNUSUAL_WEATHER_LOCATION         0x4037
+#define VAR_UNUSUAL_WEATHER_STEP_COUNTER     0x4038
+#define VAR_SHOULD_END_UNUSUAL_WEATHER       0x4039
+#define VAR_NEVER_READ_0x403A                0x403A // Var is written to, but never checked
+#define VAR_REGICE_STEPS_1                   0x403B
+#define VAR_REGICE_STEPS_2                   0x403C
+#define VAR_REGICE_STEPS_3                   0x403D
+#define VAR_ALTERING_CAVE_WILD_SET           0x403E
+#define VAR_ALWAYS_ZERO_0x403F               0x403F // This var is read and written, but is always zero.
+#define VAR_DAYS                             0x4040
+#define VAR_FANCLUB_UNKNOWN_1                0x4041
+#define VAR_FANCLUB_UNKNOWN_2                0x4042
+#define VAR_DEPT_STORE_FLOOR                 0x4043
+#define VAR_0x4044                           0x4044
+#define VAR_POKELOT_PRIZE_ITEM               0x4045
+#define VAR_NATIONAL_DEX                     0x4046
+#define VAR_SEEDOT_SIZE_RECORD               0x4047
+#define VAR_ASH_GATHER_COUNT                 0x4048
+#define VAR_BIRCH_STATE                      0x4049
+#define VAR_CRUISE_STEP_COUNT                0x404A
+#define VAR_POKELOT_RND1                     0x404B
+#define VAR_POKELOT_RND2                     0x404C
+#define VAR_POKELOT_PRIZE_PLACE              0x404D
+#define VAR_UNUSED_0x404E                    0x404E // Unused Var
+#define VAR_LOTAD_SIZE_RECORD                0x404F
+#define VAR_0x4050                           0x4050
+#define VAR_ROUTE102_ACCESSIBLE              0x4051
+#define VAR_UNUSED_0x4052                    0x4052 // Unused Var
+#define VAR_LAVARIDGE_RIVAL_STATE            0x4053
+#define VAR_CURRENT_SECRET_BASE              0x4054
+#define VAR_UNUSED_0x4055                    0x4055 // Unused Var
+#define VAR_UNUSED_0x4056                    0x4056 // Unused Var
+#define VAR_PETALBURG_STATE                  0x4057
+#define VAR_SLATEPORT_STATE                  0x4058
+#define VAR_UNUSED_0x4059                    0x4059 // Unused Var
+#define VAR_RUSTBORO_STATE                   0x405A
+#define VAR_UNUSED_0x405B                    0x405B // Unused Var
+#define VAR_UNUSED_0x405C                    0x405C // Unused Var
+#define VAR_MOSSDEEP_STATE                   0x405D
+#define VAR_RAYQUAZA_STATE                   0x405E
+#define VAR_UNUSED_0x405F                    0x405F // Unused Var
+#define VAR_ROUTE101_STATE                   0x4060
+#define VAR_UNUSED_0x4061                    0x4061 // Unused Var
+#define VAR_UNUSED_0x4062                    0x4062 // Unused Var
+#define VAR_0x4063                           0x4063
+#define VAR_UNUSED_0x4064                    0x4064 // Unused Var
+#define VAR_UNUSED_0x4065                    0x4065 // Unused Var
+#define VAR_UNUSED_0x4066                    0x4066 // Unused Var
+#define VAR_UNUSED_0x4067                    0x4067 // Unused Var
+#define VAR_UNUSED_0x4068                    0x4068 // Unused Var
+#define VAR_ROUTE110_STATE                   0x4069
+#define VAR_UNUSED_0x406A                    0x406A // Unused Var
+#define VAR_UNUSED_0x406B                    0x406B // Unused Var
+#define VAR_UNUSED_0x406C                    0x406C // Unused Var
+#define VAR_UNUSED_0x406D                    0x406D // Unused Var
+#define VAR_UNUSED_0x406E                    0x406E // Unused Var
+#define VAR_ROUTE116_STATE                   0x406F
+#define VAR_UNUSED_0x4070                    0x4070 // Unused Var
+#define VAR_ROUTE118_STATE                   0x4071
+#define VAR_ROUTE119_STATE                   0x4072
+#define VAR_UNUSED_0x4073                    0x4073 // Unused Var
+#define VAR_ROUTE121_STATE                   0x4074
+#define VAR_UNUSED_0x4075                    0x4075 // Unused Var
+#define VAR_UNUSED_0x4076                    0x4076 // Unused Var
+#define VAR_UNUSED_0x4077                    0x4077 // Unused Var
+#define VAR_UNUSED_0x4078                    0x4078 // Unused Var
+#define VAR_UNUSED_0x4079                    0x4079 // Unused Var
+#define VAR_UNUSED_0x407A                    0x407A // Unused Var
+#define VAR_ROUTE128_STATE                   0x407B
+#define VAR_UNUSED_0x407C                    0x407C // Unused Var
+#define VAR_UNUSED_0x407D                    0x407D // Unused Var
+#define VAR_UNUSED_0x407E                    0x407E // Unused Var
+#define VAR_UNUSED_0x407F                    0x407F // Unused Var
+#define VAR_UNUSED_0x4080                    0x4080 // Unused Var
+#define VAR_UNUSED_0x4081                    0x4081 // Unused Var
+#define VAR_LITTLEROOT_HOUSES_STATE          0x4082
+#define VAR_UNUSED_0x4083                    0x4083 // Unused Var
+#define VAR_BIRCH_LAB_STATE                  0x4084
+#define VAR_PETALBURG_GYM_STATE              0x4085
+#define VAR_LINK_CONTEST_ROOM_STATE          0x4086
+#define VAR_CABLE_CLUB_STATE                 0x4087
+#define VAR_CONTEST_LOCATION                 0x4088
+#define VAR_SECRET_BASE_INITIALIZED          0x4089
+#define VAR_CONTEST_PRIZE_PICKUP             0x408A
+#define VAR_UNUSED_0x408B                    0x408B // Unused Var
+#define VAR_LITTLEROOT_HOUSES_STATE_2        0x408C
+#define VAR_LITTLEROOT_RIVAL_STATE           0x408D
+#define VAR_BOARD_BRINEY_BOAT_ROUTE104_STATE 0x408E
+#define VAR_DEVON_CORP_3F_STATE              0x408F
+#define VAR_BRINEY_HOUSE_STATE               0x4090
+#define VAR_UNUSED_0x4091                    0x4091 // Unused Var
+#define VAR_LITTLEROOT_INTRO_STATE           0x4092
+#define VAR_MAUVILLE_GYM_STATE               0x4093
+#define VAR_LILYCOVE_MUSEUM_2F_STATE         0x4094
+#define VAR_LILYCOVE_FAN_CLUB_STATE          0x4095
+#define VAR_BRINEY_LOCATION                  0x4096
+#define VAR_INIT_SECRET_BASE       0x4097
+#define VAR_PETALBURG_WOODS_STATE            0x4098
+#define VAR_LILYCOVE_CONTEST_LOBBY_STATE     0x4099
+#define VAR_RUSTURF_TUNNEL_STATE             0x409A
+#define VAR_UNUSED_0x409B                    0x409B // Unused Var
+#define VAR_ELITE_4_STATE                    0x409C
+#define VAR_UNUSED_0x409D                    0x409D // Unused Var
+#define VAR_MOSSDEEP_SPACE_CENTER_STATE_1    0x409E
+#define VAR_MOSSDEEP_SPACE_CENTER_STATE_2    0x409F
+#define VAR_SLATEPORT_HARBOR_STATE           0x40A0
+#define VAR_UNUSED_0x40A1                    0x40A1 // Unused var
+#define VAR_SEAFLOOR_CAVERN_STATE            0x40A2
+#define VAR_CABLE_CAR_STATION_STATE          0x40A3
+#define VAR_SAFARI_ZONE_STATE                0x40A4
+#define VAR_TRICK_HOUSE_ENTRANCE_STATE_1     0x40A5
+#define VAR_TRICK_HOUSE_ENTRANCE_STATE_2     0x40A6
+#define VAR_TRICK_HOUSE_ENTRANCE_STATE_3     0x40A7
+#define VAR_UNUSED_0x40A8                    0x40A8 // Unused Var
+#define VAR_CYCLING_CHALLENGE_STATE          0x40A9
+#define VAR_SLATEPORT_MUSEUM_1F_STATE        0x40AA
+#define VAR_TRICK_HOUSE_PUZZLE_1_STATE       0x40AB
+#define VAR_TRICK_HOUSE_PUZZLE_2_STATE       0x40AC
+#define VAR_TRICK_HOUSE_PUZZLE_3_STATE       0x40AD
+#define VAR_TRICK_HOUSE_PUZZLE_4_STATE       0x40AE
+#define VAR_TRICK_HOUSE_PUZZLE_5_STATE       0x40AF
+#define VAR_TRICK_HOUSE_PUZZLE_6_STATE       0x40B0
+#define VAR_TRICK_HOUSE_PUZZLE_7_STATE       0x40B1
+#define VAR_TRICK_HOUSE_PUZZLE_8_STATE       0x40B2
+#define VAR_WEATHER_INSTITUTE_STATE          0x40B3
+#define VAR_PORTHOLE_STATE                   0x40B4
+#define VAR_TRICK_HOUSE_STATE                0x40B5 // TODO: needs some further investigation
+#define VAR_TRICK_HOUSE_PUZZLE_7_STATE_2     0x40B6
+#define VAR_SLATEPORT_FAN_CLUB_STATE         0x40B7
+#define VAR_UNUSED_0x40B8                    0x40B8 // Unused Var
+#define VAR_MT_PYRE_STATE                    0x40B9
+#define VAR_NEW_MAUVILLE_STATE               0x40BA
+#define VAR_UNUSED_0x40BB                    0x40BB // Unused Var
+#define VAR_BRAVO_TRAINER_BATTLE_TOWER_ON    0x40BC
+#define VAR_JAGGED_PASS_ASH_WEATHER          0x40BD
+#define VAR_GLASS_WORKSHOP_STATE             0x40BE
+#define VAR_METEOR_FALLS_STATE               0x40BF
+#define VAR_SOOTOPOLIS_MYSTERY_EVENTS_STATE  0x40C0
+#define VAR_TRICK_HOUSE_PRIZE_PICKUP         0x40C1
+#define VAR_PACIFIDLOG_TM_RECEIVED_DAY       0x40C2
+#define VAR_VICTORY_ROAD_1F_STATE            0x40C3
+#define VAR_FOSSIL_RESURRECTION_STATE        0x40C4
+#define VAR_WHICH_FOSSIL_REVIVED             0x40C5
+#define VAR_STEVENS_HOUSE_STATE              0x40C6
+#define VAR_OLDALE_STATE                     0x40C7
+#define VAR_JAGGED_PASS_STATE                0x40C8
+#define VAR_SCOTT_PETALBURG_ENCOUNTER        0x40C9
+#define VAR_SKY_PILLAR_STATE                 0x40CA
+#define VAR_ROUTE_111_STATE                  0x40CB
+#define VAR_FOSSIL_MANIAC_STATE              0x40CC
+#define VAR_CABLE_CLUB_TUTORIAL_STATE        0x40CD
+#define VAR_FRONTIER_BATTLE_MODE             0x40CE
+#define VAR_FRONTIER_FACILITY                0x40CF
+#define VAR_HAS_ENTERED_BATTLE_FRONTIER      0x40D0 // Var is used like a flag.
+#define VAR_SCOTT_STATE                      0x40D1
+#define VAR_SLATEPORT_OUTSIDE_MUSEUM_STATE   0x40D2
+#define VAR_0x40D3                           0x40D3
+#define VAR_SS_TIDAL_SCOTT_STATE             0x40D4 // Always equal to FLAG_MET_SCOTT_ON_SS_TIDAL
+#define VAR_ROAMER_POKEMON                   0x40D5 // 0 = Latias, 1 = Latios
+#define VAR_TRAINER_HILL_IS_ACTIVE           0x40D6
+#define VAR_SKY_PILLAR_RAQUAZA_CRY_DONE      0x40D7
+#define VAR_SOOTOPOLIS_STATE                 0x40D8
+#define VAR_HAS_TALKED_TO_SEAFLOOR_CAVERN_ENTRANCE_GRUNT 0x40D9
+#define VAR_0x40DA                           0x40DA
+#define VAR_UNUSED_0x40DB                    0x40DB // Unused Var
+#define VAR_UNUSED_0x40DC                    0x40DC // Unused Var
+#define VAR_EVENT_PICHU_SLOT                 0x40DD
+#define VAR_NEVER_READ_0x40DE                0x40DE // Var is written to, but never read
+#define VAR_NEVER_READ_0x40DF                0x40DF // Var is written to, but never read
+#define VAR_NEVER_READ_0x40E0                0x40E0 // Var is written to, but never read
+#define VAR_NEVER_READ_0x40E1                0x40E1 // Var is written to, but never read
+#define VAR_NEVER_READ_0x40E2                0x40E2 // Var is written to, but never read
+#define VAR_NEVER_READ_0x40E3                0x40E3 // Var is written to, but never read
+#define VAR_NEVER_READ_0x40E4                0x40E4 // var is written to, but never read
+#define VAR_UNUSED_0x40E5                    0x40E5 // Unused Var
+#define VAR_DAILY_SLOTS                      0x40E6
+#define VAR_DAILY_WILDS                      0x40E7
+#define VAR_DAILY_BLENDER                    0x40E8
+#define VAR_DAILY_PLANTED_BERRIES            0x40E9
+#define VAR_DAILY_PICKED_BERRIES             0x40EA
+#define VAR_DAILY_ROULETTE                   0x40EB
+#define VAR_SECRET_BASE_STEP_COUNTER         0x40EC // Used by Secret Base TV programs
+#define VAR_SECRET_BASE_LAST_ITEM_USED       0x40ED // Used by Secret Base TV programs
+#define VAR_SECRET_BASE_LOW_TV_FLAGS         0x40EE // Used by Secret Base TV programs
+#define VAR_SECRET_BASE_HIGH_TV_FLAGS        0x40EF // Used by Secret Base TV programs
+#define VAR_SECRET_BASE_IS_NOT_LOCAL         0x40F0 // Set to TRUE while in another player's secret base.
+#define VAR_DAILY_BP                         0x40F1
+#define VAR_WALLY_CALL_STEP_COUNTER          0x40F2
+#define VAR_WINONA_CALL_STEP_COUNTER         0x40F3
+#define VAR_ROXANNE_CALL_STEP_COUNTER        0x40F4
+#define VAR_SCOTT_CALL_STEP_COUNTER          0x40F5
+#define VAR_RIVAL_RAYQUAZA_CALL_STEP_COUNTER 0x40F6
+#define VAR_UNUSED_0x40F7                    0x40F7 // Unused Var
+#define VAR_UNUSED_0x40F8                    0x40F8 // Unused Var
+#define VAR_UNUSED_0x40F9                    0x40F9 // Unused Var
+#define VAR_UNUSED_0x40FA                    0x40FA // Unused Var
+#define VAR_UNUSED_0x40FB                    0x40FB // Unused Var
+#define VAR_UNUSED_0x40FC                    0x40FC // Unused Var
+#define VAR_UNUSED_0x40FD                    0x40FD // Unused Var
+#define VAR_UNUSED_0x40FE                    0x40FE // Unused Var
+#define VAR_UNUSED_0x40FF                    0x40FF // Unused Var
 
 #define SPECIAL_VARS_START 0x8000
 // special vars
 // They are commonly used as parameters to commands, or return values from commands.
-#define VAR_0x8000                 0x8000
-#define VAR_0x8001                 0x8001
-#define VAR_0x8002                 0x8002
-#define VAR_0x8003                 0x8003
-#define VAR_0x8004                 0x8004
-#define VAR_0x8005                 0x8005
-#define VAR_0x8006                 0x8006
-#define VAR_0x8007                 0x8007
-#define VAR_0x8008                 0x8008
-#define VAR_0x8009                 0x8009
-#define VAR_0x800A                 0x800A
-#define VAR_0x800B                 0x800B
-#define VAR_FACING                 0x800C
-#define VAR_RESULT                 0x800D
-#define VAR_ITEM_ID                0x800E
-#define VAR_LAST_TALKED            0x800F
-#define VAR_CONTEST_RANK           0x8010
-#define VAR_CONTEST_CATEGORY       0x8011
-#define VAR_MON_BOX_ID             0x8012
-#define VAR_MON_BOX_POS            0x8013
-#define VAR_0x8014                 0x8014
-#define VAR_0x8015                 0x8015
+#define VAR_0x8000                    0x8000
+#define VAR_0x8001                    0x8001
+#define VAR_0x8002                    0x8002
+#define VAR_0x8003                    0x8003
+#define VAR_0x8004                    0x8004
+#define VAR_0x8005                    0x8005
+#define VAR_0x8006                    0x8006
+#define VAR_0x8007                    0x8007
+#define VAR_0x8008                    0x8008
+#define VAR_0x8009                    0x8009
+#define VAR_0x800A                    0x800A
+#define VAR_0x800B                    0x800B
+#define VAR_FACING                    0x800C
+#define VAR_RESULT                    0x800D
+#define VAR_ITEM_ID                   0x800E
+#define VAR_LAST_TALKED               0x800F
+#define VAR_CONTEST_RANK              0x8010
+#define VAR_CONTEST_CATEGORY          0x8011
+#define VAR_MON_BOX_ID                0x8012
+#define VAR_MON_BOX_POS               0x8013
+#define VAR_UNUSED_0x8014             0x8014
+#define VAR_TRAINER_BATTLE_OPPONENT_A 0x8015 // Alias of gTrainerBattleOpponent_A
 
 #endif // GUARD_CONSTANTS_VARS_H
diff --git a/include/constants/weather.h b/include/constants/weather.h
index d0a81c34c..b01cfb390 100644
--- a/include/constants/weather.h
+++ b/include/constants/weather.h
@@ -16,7 +16,7 @@
 #define WEATHER_DROUGHT        12
 #define WEATHER_RAIN_HEAVY     13
 #define WEATHER_BUBBLES        14
-#define WEATHER_15             15
+#define WEATHER_ALTERNATING    15
 #define WEATHER_ROUTE119_CYCLE 20
 #define WEATHER_ROUTE123_CYCLE 21
 
@@ -37,4 +37,30 @@
 #define COORD_EVENT_WEATHER_ROUTE119_CYCLE 20
 #define COORD_EVENT_WEATHER_ROUTE123_CYCLE 21
 
+// These are the "unusual weather events" that are used
+// to find Kyogre and Groudon.
+#define UNUSUAL_WEATHER_COUNT_PER_LEGENDARY 8
+#define UNUSUAL_WEATHER_GROUDON_LOCATIONS_START 1
+#define UNUSUAL_WEATHER_KYOGRE_LOCATIONS_START 1 + UNUSUAL_WEATHER_COUNT_PER_LEGENDARY
+
+#define UNUSUAL_WEATHER_NONE 0
+// Groudon locations
+#define UNUSUAL_WEATHER_ROUTE_114_NORTH 1
+#define UNUSUAL_WEATHER_ROUTE_114_SOUTH 2
+#define UNUSUAL_WEATHER_ROUTE_115_WEST 3
+#define UNUSUAL_WEATHER_ROUTE_115_EAST 4
+#define UNUSUAL_WEATHER_ROUTE_116_NORTH 5
+#define UNUSUAL_WEATHER_ROUTE_116_SOUTH 6
+#define UNUSUAL_WEATHER_ROUTE_118_EAST 7
+#define UNUSUAL_WEATHER_ROUTE_118_WEST 8
+// Kyogre locations
+#define UNUSUAL_WEATHER_ROUTE_105_NORTH 9
+#define UNUSUAL_WEATHER_ROUTE_105_SOUTH 10
+#define UNUSUAL_WEATHER_ROUTE_125_WEST 11
+#define UNUSUAL_WEATHER_ROUTE_125_EAST 12
+#define UNUSUAL_WEATHER_ROUTE_127_NORTH 13
+#define UNUSUAL_WEATHER_ROUTE_127_SOUTH 14
+#define UNUSUAL_WEATHER_ROUTE_129_WEST 15
+#define UNUSUAL_WEATHER_ROUTE_129_EAST 16
+
 #endif // GUARD_CONSTANTS_WEATHER_H