|
Routines |
| Prev: 37708 | Up: Map | Next: 37771 |
|
Used by the routines at HandlerPickupItem and HandlerBlank.
Puts the item in the third slot of the inventory (see Inventory_Slot3) back into the room at the position of the player, and makes the sound of dropping. Nothing is done if the slot is empty.
|
||||
| DropItem | 37720 | LD HL,24120 | Point HL at the third inventory slot at Inventory_Slot3. | |
| 37723 | LD E,(HL) | Fetch the low byte of the address of the entity. | ||
| 37724 | INC HL | Move on to the next byte. | ||
| 37725 | LD D,(HL) | Fetch the high byte of the address of the entity. | ||
| 37726 | INC HL | Move on to the next byte. | ||
| 37727 | LD A,D | Return if the slot is empty (the address of the entity is zero). | ||
| 37728 | OR E | |||
| 37729 | RET Z | |||
| 37730 | PUSH DE | Stash the address of the entity on the stack. | ||
| 37731 | LD A,(HL) | Fetch the sprite ID in the slot. | ||
| 37732 | INC HL | Move on to the next byte. | ||
| 37733 | LD (DE),A | Update the sprite ID of the entity. | ||
| 37734 | INC DE | Move on to the room of the entity. | ||
| 37735 | LD A,(60049) | Fetch the room of the player from PlayerRoom. | ||
| 37738 | LD (DE),A | Update the room of the entity. | ||
| 37739 | INC DE | Move on to offset 2 of the entity. | ||
| 37740 | LD A,128 | Write 128 to offset 2 of the entity. | ||
| 37742 | LD (DE),A | |||
| 37743 | INC DE | Move on to the X position of the entity. | ||
| 37744 | LD A,(60051) | Fetch the X position of the player from 60051. | ||
| 37747 | LD (DE),A | Update the X position of the entity. | ||
| 37748 | INC DE | Move on to the Y position of the entity. | ||
| 37749 | LD A,(60052) | Fetch the Y position of the player from 60052. | ||
| 37752 | LD (DE),A | Update the Y position of the entity. | ||
| 37753 | INC DE | Move on to the attribute of the entity. | ||
| 37754 | LD A,(HL) | Fetch the attribute in the slot. | ||
| 37755 | LD (DE),A | Update the attribute of the entity. | ||
| 37756 | POP DE | Restore the address of the entity from the stack. | ||
| 37757 | CALL SoundsDropItem | Call SoundsDropItem to make the sound of dropping. | ||
| 37760 | PUSH IX | Stash IX on the stack. | ||
| 37762 | PUSH DE | Copy DE into IX, as the entity to draw. | ||
| 37763 | POP IX | |||
| 37765 | CALL DrawEntity | Call DrawEntity to draw the entity. | ||
| 37768 | POP IX | Restore IX from the stack. | ||
| 37770 | RET | Return. | ||
| Prev: 37708 | Up: Map | Next: 37771 |