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Routines |
| Prev: C32A | Up: Map | Next: C37F |
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Used by the routines at Action_ExamineItem, CheckActiveScenicEvents, Event_Crab, Event_Tentacle, Event_Lion, Event_Cannibals, EF54, Action_Help, Action_Examine, Action_Take, Action_DropThrow, Action_???, Action_Open, Action_CloseShut, Action_Shout, Action_Pull, Action_Wear, Action_LightStrike, Action_Move and Action_Unlock.
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| ValidateItemPresent | C35F | PUSH HL | Stash HL and DE on the stack. | |||||||
| C360 | PUSH DE | |||||||||
| C361 | LD E,A | Store the object ID in DE. | ||||||||
| C362 | LD D,$00 | |||||||||
| C364 | BIT 7,E | Jump to Objects_UseScenicTable if this is a scenic object. | ||||||||
| C366 | JR NZ,Objects_UseScenicTable | |||||||||
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Else check the regular objects.
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| C368 | LD HL,$BBF0 | HL=Table_ItemLocations. | ||||||||
| C36B | JR Objects_CheckLocation | Jump to Objects_CheckLocation. | ||||||||
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Prepare object ID for use.
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| Objects_UseScenicTable | C36D | RES 7,E | Clear the scenic flag. | |||||||
| C36F | LD HL,$BC78 | HL=Table_ScenicEventLocations. | ||||||||
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Both object types continue from here.
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| Objects_CheckLocation | C372 | ADD HL,DE | Add the object ID to the object/ event locations table. | |||||||
| C373 | LD A,($BCCB) | Jump to Handler_Objects_Return if the object/ event table states that it's located in *the current room. Note also sets/ unsets the Z flag accordingly. | ||||||||
| C376 | CP (HL) | |||||||||
| C377 | JR Z,Handler_Objects_Return | |||||||||
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Check the players inventory, as an object can still be used if it's being held.
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| C379 | LD A,$01 | Lastly, set the Z flag if the item is in the players inventory. | ||||||||
| C37B | CP (HL) | |||||||||
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Housekeeping; restore DE and HL to their previous values.
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| Handler_Objects_Return | C37C | POP DE | Restore DE and HL from the stack. | |||||||
| C37D | POP HL | |||||||||
| C37E | RET | Return. | ||||||||
| Prev: C32A | Up: Map | Next: C37F |