|
Routines |
| Prev: 38295 | Up: Map | Next: 39032 |
|
Used by the routine at GameStart.
|
||||
| PopulatePrimaryDisplay_LayoutData | 38966 | LD HL,(28102) | Self-modifying code; alter the value for the LD HL instruction at 39112 with the address at PrimaryDisplayBuffer. |
|
| 38969 | LD (39113),HL | |||
| 38972 | LD A,(28063) | Load C with TempStore_RoomDimension_Depth. | ||
| 38975 | LD C,A | |||
| 38976 | LD A,(28042) | Load B with CurrentRoomIndex. | ||
| 38979 | LD B,A | |||
| 38980 | LD D,0 | Load D with 0. | ||
|
Start drawing simple entities.
|
||||
| DrawSimpleEntities | 38982 | LD IX,(28015) | Load IX with the start address of StateData_SimpleEntities. | |
| 38986 | LD E,6 | Load DE with 6 (as simple state data entries are 6 bytes wide). | ||
| DrawSimpleEntities_Loop | 38988 | LD A,(IX+0) | Load first byte of current simple state data entry into A. | |
| 38991 | CP 255 | If this is 255 (end marker for complex state data) then skip ahead to DecreaseDepth. | ||
| 38993 | JR Z,DecreaseDepth | |||
| 38995 | CP 254 | If it is not 254 (end marker for simple state data) then skip ahead to PopulatePrimaryDisplay_LayoutData_0. | ||
| 38997 | JR NZ,PopulatePrimaryDisplay_LayoutData_0 | |||
| 38999 | SLA E | |||
| 39001 | INC IX | Advance IX to start of complex state data block. | ||
| 39003 | LD A,(IX+0) | Load A with entity's room index. | ||
|
At this point, A holds the index of the room to which the simple or complex entity belongs.
|
||||
| PopulatePrimaryDisplay_LayoutData_0 | 39006 | CP B | If entity's room is not the same as the current character's current room then skip ahead to PrimaryDisplay_NextData. | |
| 39007 | JR NZ,PrimaryDisplay_NextData | |||
| 39009 | LD A,C | If entity's depth is not the same as current depth in C then skip ahead to PrimaryDisplay_NextData. | ||
| 39010 | CP (IX+1) | |||
| 39013 | JR NZ,PrimaryDisplay_NextData | |||
| 39015 | EXX | Switch to the shadow registers. | ||
| 39016 | PUSH IX | Stash IX on the stack. | ||
| 39018 | CALL 39032 | Call 39032. | ||
| 39021 | POP IX | Restore IX from the stack. | ||
| 39023 | EXX | Switch back to the normal registers. | ||
| PrimaryDisplay_NextData | 39024 | ADD IX,DE | Advance IX to next entity's state data. | |
| 39026 | JR DrawSimpleEntities_Loop | Loop back to DrawSimpleEntities_Loop. | ||
| DecreaseDepth | 39028 | DEC C | Decrease current depth (i.e. closer to screen). | |
| 39029 | JR NZ,DrawSimpleEntities | If depth is not zero (i.e. still depth levels to process) then loop back to DrawSimpleEntities. | ||
| 39031 | RET | Return. | ||
| Prev: 38295 | Up: Map | Next: 39032 |