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-rw-r--r--constants/item_constants.asm30
1 files changed, 28 insertions, 2 deletions
diff --git a/constants/item_constants.asm b/constants/item_constants.asm
index 1fbdadae..7061b86c 100644
--- a/constants/item_constants.asm
+++ b/constants/item_constants.asm
@@ -198,10 +198,22 @@
const ITEM_BE ; be
add_tm: MACRO
+; Defines three constants:
+; - TM_\1: the item id, starting at $bf
+; - \1_TMNUM: the learnable TM/HM flag, starting at 1
+; - TM##_MOVE: alias for the move id, equal to the value of \1
+; The first usage also defines TM01 as the first TM item id.
if !DEF(TM01)
TM01 EQU const_value
enum_start 1
endc
+if __enum__ < 10
+MOVE_FOR_TM EQUS "TM0{d:__enum__}_MOVE"
+else
+MOVE_FOR_TM EQUS "TM{d:__enum__}_MOVE"
+endc
+MOVE_FOR_TM = \1
+PURGE MOVE_FOR_TM
const TM_\1
enum \1_TMNUM
ENDM
@@ -259,12 +271,26 @@ ENDM
add_tm FIRE_PUNCH ; f0
add_tm FURY_CUTTER ; f1
add_tm NIGHTMARE ; f2
-NUM_TMS EQU const_value - TM01 - 2 ; discount ITEM_C3 and ITEM_DC
+NUM_TMS EQU __enum__ - 1
add_hm: MACRO
+; Defines three constants:
+; - HM_\1: the item id, starting at $f3
+; - \1_TMNUM: the learnable TM/HM flag, starting at 51
+; - HM##_MOVE: alias for the move id, equal to the value of \1
+; The first usage also defines HM01 as the first TM item id.
if !DEF(HM01)
HM01 EQU const_value
endc
+HM_VALUE EQU __enum__ - NUM_TMS
+if HM_VALUE < 10
+MOVE_FOR_HM EQUS "HM0{d:HM_VALUE}_MOVE"
+else
+MOVE_FOR_HM EQUS "HM{d:HM_VALUE}_MOVE"
+endc
+MOVE_FOR_HM = \1
+PURGE MOVE_FOR_HM
+PURGE HM_VALUE
const HM_\1
enum \1_TMNUM
ENDM
@@ -276,7 +302,7 @@ ENDM
add_hm FLASH ; f7
add_hm WHIRLPOOL ; f8
add_hm WATERFALL ; f9
-NUM_HMS EQU const_value - HM01
+NUM_HMS EQU __enum__ - NUM_TMS - 1
NUM_TM_HM EQU __enum__ - 1