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Routines |
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Used by the routine at DrawRoom.
Draws every entity that is in the same room as the player and is in use. First the 8-byte entities from Player up to CreatureRecords are done, and then the 16-byte ones up to RoomItemEntities.
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| DrawRoomEntities | 37521 | LD IX,60048 | Point IX at the player at Player. | |
| DrawRoomEntities_Loop | 37525 | LD A,(IX+0) | Fetch the sprite ID of the entity. | |
| 37528 | AND A | Jump to DrawRoomEntities_Next if the entity is not in use. | ||
| 37529 | JR Z,DrawRoomEntities_Next | |||
| 37531 | LD A,(60049) | Fetch the room of the player from PlayerRoom. | ||
| 37534 | CP (IX+1) | Jump to DrawRoomEntities_Next if the entity is in a different room. | ||
| 37537 | JR NZ,DrawRoomEntities_Next | |||
| 37539 | CALL DrawEntity | Call DrawEntity to draw the entity. | ||
| DrawRoomEntities_Next | 37542 | LD DE,8 | DE=0008 (the size of an 8-byte entity). | |
| 37545 | ADD IX,DE | Move IX on to the next entity. | ||
| 37547 | PUSH IX | Copy IX into HL. | ||
| 37549 | POP HL | |||
| 37550 | LD DE,61024 | Point DE at the end of the 8-byte entities at CreatureRecords. | ||
| 37553 | AND A | Subtract DE from HL, to check whether all of the 8-byte entities have been done. | ||
| 37554 | SBC HL,DE | |||
| 37556 | JR C,DrawRoomEntities_Loop | Loop back to DrawRoomEntities_Loop until all of the 8-byte entities have been drawn. | ||
| DrawRoomEntities_Large | 37558 | LD A,(IX+0) | Fetch the sprite ID of the entity. | |
| 37561 | AND A | Jump to DrawRoomEntities_NextLarge if the entity is not in use. | ||
| 37562 | JR Z,DrawRoomEntities_NextLarge | |||
| 37564 | LD A,(60049) | Fetch the room of the player from PlayerRoom. | ||
| 37567 | CP (IX+1) | Jump to DrawRoomEntities_NextLarge if the entity is in a different room. | ||
| 37570 | JR NZ,DrawRoomEntities_NextLarge | |||
| 37572 | CALL DrawEntity | Call DrawEntity to draw the entity. | ||
| DrawRoomEntities_NextLarge | 37575 | LD DE,16 | DE=0016 (the size of a 16-byte entity). | |
| 37578 | ADD IX,DE | Move IX on to the next entity. | ||
| 37580 | PUSH IX | Copy IX into HL. | ||
| 37582 | POP HL | |||
| 37583 | LD DE,61152 | Point DE at the end of the 16-byte entities at RoomItemEntities. | ||
| 37586 | AND A | Subtract DE from HL, to check whether all of the 16-byte entities have been done. | ||
| 37587 | SBC HL,DE | |||
| 37589 | JR C,DrawRoomEntities_Large | Loop back to DrawRoomEntities_Large until all of the 16-byte entities have been drawn. | ||
| 37591 | RET | Return. | ||
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