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Routines |
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Used by the routine at DispatchCharacterScript.
Saves the character record and reads the object attribute for this script display.
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| ProcessScriptDisplay | 47414 | PUSH IX | Save the character record, the schedule entry and the pointer. | |
| 47416 | PUSH IY | |||
| 47418 | PUSH HL | |||
| 47419 | LD (47413),A | Record the result in the display. | ||
| ProcessScriptDisplay_Loop | 47422 | CALL 47374 | Call 47374 to read the object attribute. | |
| 47425 | LD A,(IX+7) | Jump to ProcessCharacterDisplay if byte 7 of the character record is 2. | ||
| 47428 | CP 2 | |||
| 47430 | JP Z,ProcessCharacterDisplay | |||
| 47433 | LD A,(IX+1) | Jump to ProcessScriptDisplay_Next if the moved marker is 255. | ||
| 47436 | CP 255 | |||
| 47438 | JR Z,ProcessScriptDisplay_Next | |||
| 47440 | LD A,(47413) | Read the display. | ||
| 47443 | LD (47412),A | Record the result in the display flag at 47412. | ||
| 47446 | LD A,(IX+2) | Read the character's room. | ||
| 47449 | LD (40988),A | Record the result in the display flag at 40988. | ||
| 47452 | LD C,(IX+3) | Read the action flags. | ||
| 47455 | LD B,(IX+4) | Call InitialiseDisplayBuffer to initialise display buffer. | ||
| 47458 | LD (45438),BC | |||
| 47462 | CALL InitialiseDisplayBuffer | |||
| 47465 | JR Z,ProcessScriptDisplay_DisplayFlagSaved | Go to ProcessScriptDisplay_DisplayFlagSaved if no room record matches. | ||
| 47467 | LD IX,(47206) | Read the saved character record and the object-table pointer. | ||
| 47471 | LD BC,(45438) | |||
| 47475 | LD (IX+3),C | Store it in the action flags and store it in the attribute type. | ||
| 47478 | LD (IX+4),B | |||
| 47481 | LD A,(40988) | Store the display flag (40988) and call CopyLinkAhead if that flag is zero. | ||
| 47484 | LD (IX+2),A | |||
| 47487 | AND A | |||
| 47488 | CALL Z,CopyLinkAhead | |||
| ProcessScriptDisplay_Store | 47491 | LD A,1 | Take 1. | |
| ProcessScriptDisplay_BringSavedPointer | 47493 | POP HL | Restore the saved pointer, the saved schedule entry and the saved character record from the stack. | |
| 47494 | POP IY | |||
| 47496 | POP IX | |||
| 47498 | AND A | Clear the borrow so an empty entry returns as a failed match. | ||
| 47499 | RET | Return. | ||
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Read the character's room, then record the result in the saved character, then read the action flags.
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| ProcessScriptDisplay_Next | 47500 | LD A,(IX+2) | Read the character's room, then call ProcessRoomDisplayParameter to resolve the room display parameter. | |
| 47503 | CALL ProcessRoomDisplayParameter | |||
| 47506 | LD (41011),A | Record the saved character. | ||
| 47509 | LD A,(IX+3) | Read the action flags, then call ProcessRoomDisplayParameter to resolve the room display parameter. | ||
| 47512 | CALL ProcessRoomDisplayParameter | |||
| 47515 | LD (41012),A | Record the room display parameter. | ||
| 47518 | LD A,(IX+4) | Read the next parameter and call ProcessRoomDisplayParameter to resolve it. | ||
| 47521 | CALL ProcessRoomDisplayParameter | |||
| 47524 | LD (41013),A | Store the room graphics parameter at RoomGraphicsParameter and call CopyPointerToStack. | ||
| 47527 | CALL CopyPointerToStack | |||
| 47530 | JR ProcessScriptDisplay_Store | Jump back to ProcessScriptDisplay_Store to take 1. | ||
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Follows the link until it runs out, then clears the result.
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| ProcessScriptDisplay_FollowsLinkRuns | 47532 | CALL CopyLinkAhead | Call CopyLinkAhead and jump back to ProcessScriptDisplay_FollowsLinkRuns while it returns non-zero. | |
| 47535 | JR NZ,ProcessScriptDisplay_FollowsLinkRuns | |||
| ProcessScriptDisplay_Zero | 47537 | XOR A | Jump back to ProcessScriptDisplay_BringSavedPointer to see whether it is zero. | |
| 47538 | JR ProcessScriptDisplay_BringSavedPointer | |||
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Read the display flag, then take the saved character record.
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| ProcessScriptDisplay_DisplayFlagSaved | 47540 | LD A,(40988) | Jump to ProcessScriptDisplay_FollowsLinkRuns if the display is zero. | |
| 47543 | AND A | |||
| 47544 | JR Z,ProcessScriptDisplay_FollowsLinkRuns | |||
| 47546 | LD IX,(47206) | Read the saved character record and clear its location. | ||
| 47550 | LD (IX+2),0 | |||
| 47554 | CALL CopyLinkAhead | Go to ProcessScriptDisplay_Zero if the link pointer is zero. | ||
| 47557 | JR Z,ProcessScriptDisplay_Zero | |||
| 47559 | JP ProcessScriptDisplay_Loop | Go back to ProcessScriptDisplay_Loop for the next character. | ||
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