iron_crisis.tpa

// add weapon breakage to non-magical iron weapons for the iron crisis in BG1
ACTION_IF (GAME_IS ~tutu tutu_totsc bgt bgee~) BEGIN
  ACTION_DEFINE_ARRAY iron_weapons BEGIN
    AX1H01
    BLUN02
    BLUN04
    BLUN06
    BLUN08
    DAGG01
    DAGG06
    DAGG07
    HALB01
    HAMM01
    SPER01
    SW1H01
    SW1H04
    SW1H07
    SW1H12
    SW1H17
    SW1H20
    SW1H43
    SW1H46
    SW1H48
    SW2H01
  END
  
  // Tutu and BGEE trigger weapon breakage by spell
  OUTER_SET iron_crisis_opcode = 146 // cast spell
  OUTER_SET iron_crisis_param1 = 1 // level to cast at

  // BGT triggers weapon breakage by setting a variable that is checked later via script
  ACTION_IF (GAME_IS ~bgt~) BEGIN
    OUTER_SET iron_crisis_opcode = 309 // set variable
    OUTER_SET iron_crisis_param1 = 1 // value to set variable to
  END

  ACTION_PHP_EACH iron_weapons AS i => weapon BEGIN
    ACTION_FOR_EACH resource IN ~%weapon%~ ~_%weapon%~ BEGIN // cover both regular and Tutu files
      ACTION_IF (FILE_EXISTS_IN_GAME ~%resource%.itm~
                 && (GAME_IS ~bgt~ OR FILE_EXISTS_IN_GAME ~%resource%.spl~)) BEGIN
        COPY_EXISTING ~%resource%.itm~ ~override~
          LPF ~DELETE_ITEM_EFFECT~ // remove any existing effect
            INT_VAR
              opcode_to_delete = iron_crisis_opcode
          END
          LPF ~ADD_ITEM_EFFECT~
            INT_VAR
              opcode = iron_crisis_opcode
              target = 1 // self
              parameter1 = iron_crisis_param1
              timing = 1 // instant
              probability1 = 1 // 1% chance to trigger
              header = 1 // add to first header
              type = 1 // melee
            STR_VAR
              // the associated .spl to cast for Tutu and BGEE is named the same as the .itm resource
              // and the associated script variable for BGT is named the same as the .itm resource
              resource = EVALUATE_BUFFER ~%SOURCE_RES%~
          END
      END
    END
  END
END