diff options
Diffstat (limited to 'constants')
| -rwxr-xr-x | constants/item_constants.asm | 39 |
1 files changed, 35 insertions, 4 deletions
diff --git a/constants/item_constants.asm b/constants/item_constants.asm index 0bb7cdb7..1ec70446 100755 --- a/constants/item_constants.asm +++ b/constants/item_constants.asm @@ -103,10 +103,27 @@ SAFARI_ROCK EQU $16 ; overload const_value = $C4 add_hm: MACRO -if !DEF(HM01) +; Defines three constants: +; - HM_\1: the item id, starting at $C4 +; - \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 HM item id. +; +; HMs are defined before TMs, so the value of NUM_TMS is not +; available here, and its value of 50 is hard-coded. +IF !DEF(HM01) HM01 EQU const_value enum_start 51 ; NUM_TMS + 1 -endc +ENDC +HM_VALUE EQU __enum__ - 50 ; __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 @@ -119,10 +136,22 @@ ENDM NUM_HMS EQU const_value - HM01 add_tm: MACRO -if !DEF(TM01) +; Defines three constants: +; - TM_\1: the item id, starting at $C9 +; - \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 +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 @@ -179,5 +208,7 @@ ENDM add_tm SUBSTITUTE ; $FA NUM_TMS EQU const_value - TM01 +; 50 TMs + 5 HMs = 55 learnable TM/HM flags per Pokémon. +; These fit in 7 bytes, with one unused bit left over. enum_start NUM_TMS + NUM_HMS + 1 enum UNUSED_TMNUM |