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Routines |
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Used by the routine at GameStart.
Process Special Entity Flags walking the entity tables at StateData_SimpleEntities / StateData_Boney.
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| Process_Special_Entity_Flags | 45656 | LD HL,29363 | Point HL at the game event flags (GameEventFlags). | |
| 45659 | BIT 0,(HL) | Is "room / script event raised" (bit 0 of GameEventFlags) set? If not, return. | ||
| 45661 | RET Z | |||
| 45662 | RES 0,(HL) | Clear "room / script event raised" (bit 0 of GameEventFlags). | ||
| 45664 | LD DE,14 | Each entity record is 0014 bytes long, then load that length into DE. | ||
| 45667 | LD IX,36585 | Point IX at Boney's complex entity state (StateData_Boney). | ||
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Scan special-flag entities: raise them while y < 40, else deactivate, or try an entity-slot update.
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| Process_Special_Entity_Flags_Scan | 45671 | LD A,(IX+0) | Fetch the current entity's type for the type test. | |
| 45674 | CP 50 | Is the current entity's entity type equal to 50? If so, return. | ||
| 45676 | RET Z | |||
| 45677 | BIT 5,(IX+2) | Is bit 5 of the current entity's flags byte 2 set? If not, jump to Process_Special_Entity_Flags_TryUpdateSlot. | ||
| 45681 | JR Z,Process_Special_Entity_Flags_TryUpdateSlot | |||
| 45683 | LD A,(IX+5) | Load A with the current entity's y-coordinate. | ||
| 45686 | CP 40 | Is the current entity's y-coordinate less than 40? If so, jump to Process_Special_Entity_Flags_RaiseY. | ||
| 45688 | JR C,Process_Special_Entity_Flags_RaiseY | |||
| 45690 | LD (IX+0),0 | Write 0 to the current entity's entity type. | ||
| 45694 | RES 7,(IX+1) | Reset bit 7 of the current entity's flags byte 1. | ||
| 45698 | RES 5,(IX+2) | Reset bit 5 of the current entity's flags byte 2. | ||
| 45702 | JR Process_Special_Entity_Flags_Branch | Jump to Process_Special_Entity_Flags_Branch to finish this special-flag entity. | ||
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Raise the special-flag entity two characters and keep the room/script event latched.
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| Process_Special_Entity_Flags_RaiseY | 45704 | INC (IX+5) | Move this entity two characters down. | |
| 45707 | INC (IX+6) | |||
| 45710 | INC (IX+5) | |||
| 45713 | INC (IX+6) | |||
| 45716 | SET 0,(HL) | Set "room / script event raised" (bit 0 of GameEventFlags). | ||
| 45718 | JR Process_Special_Entity_Flags_Branch | Jump to Process_Special_Entity_Flags_Branch to finish this special-flag entity. | ||
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When bit 7 is set, call Update_Entity_Slot to update the entity slot (once or twice).
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| Process_Special_Entity_Flags_TryUpdateSlot | 45720 | BIT 7,(IX+1) | Is bit 7 of the current entity's flags byte 1 set? If not, jump to Process_Special_Entity_Flags_Branch. | |
| 45724 | JR Z,Process_Special_Entity_Flags_Branch | |||
| 45726 | CALL Update_Entity_Slot | Call Update_Entity_Slot to update Entity Slot? If so, jump to Process_Special_Entity_Flags_Branch. | ||
| 45729 | JR C,Process_Special_Entity_Flags_Branch | |||
| 45731 | CALL Update_Entity_Slot | Call Update_Entity_Slot to update Entity Slot. | ||
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Advance to the next entity and continue the special-flag scan.
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| Process_Special_Entity_Flags_Branch | 45734 | ADD IX,DE | Advance IX to the next entity record. | |
| 45736 | JR Process_Special_Entity_Flags_Scan | Jump to Process_Special_Entity_Flags_Scan to advance to the next special-flag entity. | ||
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