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Routines |
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Used by the routines at InitialiseDisplayBuffer, ReadRoomGraphicsParameter, RestoreSavedCharacterRecord, ProcessDisplayAction, RecordResultRoomGraphics and RecordResultRoomGraphics_CountCountRemaining.
Prepares the room or object named for the picture, and skips it when the record is not marked for display.
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Set object pointers.
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| ProcessObjectDisplayLogic | C929 | CALL SetObjectPointers | Call SetObjectPointers to point at this object's records. | |
| C92C | LD A,($A034) | Jump to ProcessObjectDisplayLogic_SavedCharacterMove if the room display parameter is at least FE. | ||
| C92F | CP $FE | |||
| C931 | JR NC,ProcessObjectDisplayLogic_SavedCharacterMove | |||
| C933 | LD IX,($A017) | Read the current character record. | ||
| C937 | BIT 6,(IX+$05) | Jump to ProcessObjectDisplayLogic_Next if the special-description flag is clear. | ||
| C93B | JR Z,ProcessObjectDisplayLogic_Next | |||
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No matching handler?
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| C93D | XOR A | Jump ahead to ProcessObjectDisplayLogic_Next if CalculateHandlerOffset finds no handler. | ||
| C93E | CALL CalculateHandlerOffset | |||
| C941 | JR NC,ProcessObjectDisplayLogic_Next | |||
| C943 | LD A,($A033) | Read the saved character and call SearchTwoByteTable to search the two-byte table. | ||
| C946 | CALL SearchTwoByteTable | |||
| C949 | CP $FF | Jump ahead to ProcessObjectDisplayLogic_MovedMarker if the entry is not the end marker. | ||
| C94B | JR NZ,ProcessObjectDisplayLogic_MovedMarker | |||
| ProcessObjectDisplayLogic_Next | C94D | LD A,($A00F) | Jump to ProcessObjectDisplayLogic_SavedCharacterMove if the display mode is below 07. | |
| C950 | CP $07 | |||
| C952 | JR C,ProcessObjectDisplayLogic_SavedCharacterMove | |||
| C954 | LD IX,($A013) | Call CalculateHandlerOffset to calculate handler offset. | ||
| C958 | LD A,($A033) | |||
| C95B | CALL CalculateHandlerOffset | |||
| C95E | JR NC,ProcessObjectDisplayLogic_SavedCharacterMove | Jump ahead to ProcessObjectDisplayLogic_SavedCharacterMove if CalculateHandlerOffset finds no handler. | ||
| ProcessObjectDisplayLogic_MovedMarker | C960 | LD A,(IX+$01) | Read the moved marker. | |
| C963 | LD E,A | |||
| C964 | LD D,$00 | |||
| C966 | LD HL,$AA71 | Use the lookup table: object display data at Table_ObjectDisplayData. | ||
| C969 | DEC DE | Index the word table at Table_ObjectDisplayData and draw that record from ProcessObjectDisplayEntry. | ||
| C96A | ADD HL,DE | |||
| C96B | ADD HL,DE | |||
| C96C | LD E,(HL) | |||
| C96D | INC HL | |||
| C96E | LD D,(HL) | |||
| C96F | EX DE,HL | |||
| C970 | JR ProcessObjectDisplayEntry | |||
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Read the saved character, then use the display records at 9F38 as the character record, then check for the end marker.
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| ProcessObjectDisplayLogic_SavedCharacterMove | C972 | LD A,($A033) | Call SearchThreeByteTable to search three-byte length table. | |
| C975 | LD IX,$9F38 | |||
| C979 | CALL SearchThreeByteTable | |||
| C97C | CP $FF | Return zero through ParseInputNumber_ReturnZero if the entry is the end marker. | ||
| C97E | JP Z,ParseInputNumber_ReturnZero | |||
| C981 | LD L,(IX+$01) | Read the display-record pointer and draw it from ProcessObjectDisplayEntry. | ||
| C984 | LD H,(IX+$02) | |||
| C987 | JR ProcessObjectDisplayEntry | |||
| Prev: C8EF | Up: Map | Next: C989 |