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Routines |
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Used by the routine at GameStart.
Start a new game: reset display buffers, tick counter, menu glyphs and room state for Learner or Super Berk.
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| Initialise_New_Game | AF3C | CALL Backup_Entity_And_Game_State | Call Backup_Entity_And_Game_State to backup Entity And Game State. | |
| AF3F | LD HL,$63A0 | Point HL at Primary Display Buffer (PrimaryDisplayBuffer). | ||
| AF42 | LD ($72F5),HL | Store HL in Pointer: Current Display Buffer (Pointer_CurrentDisplayBuffer). | ||
| AF45 | XOR A | Clear the display-buffer select flag. | ||
| AF46 | LD ($72EA),A | Set Display Buffer Select Flag (DisplayBufferSelectFlag). | ||
| AF49 | LD A,$64 | Load A with 64 as the initial game tick counter. | ||
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This entry point is used by the routine at Initialise_Room_Display.
Set the game tick counter, clear both display buffers, and set the border/speaker state.
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| Initialise_New_Game_SetTickCounter | AF4B | LD ($72F2),A | Set the game tick counter (GameTickCounter). | |
| AF4E | CALL Clear_BothDisplayBuffers | Call Clear_BothDisplayBuffers to clear both display buffers. | ||
| AF51 | LD A,$02 | Load A with 02. | ||
| AF53 | CALL Set_BorderSpeakerState | Call Set_BorderSpeakerState to set Border And Speaker State. | ||
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This entry point is used by the routine at Initialise_Room_Display.
Point the glyph printer at Data_MenuGlyphBitmaps and choose the Learner (7A) vs Super Berk (68) room byte.
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| Initialise_New_Game_SetGlyphPointer | AF56 | LD HL,$AD17 | Point HL at the menu/glyph bitmap data (Data_MenuGlyphBitmaps). | |
| AF59 | LD ($72F9),HL | Write the pointer in HL to the temporary screen pointer (Pointer_CurrentCharacterSet). | ||
| AF5C | LD E,$04 | Load E with 04 as a small loop/position count. | ||
| AF5E | LD A,($72A9) | Load A with the Learner Berk mode flag (Flag_LearnerBerkMode). | ||
| AF61 | OR A | Is Learner Berk mode flag zero? If so, jump to Initialise_New_Game_SuperBerkRoomByte. | ||
| AF62 | JR Z,Initialise_New_Game_SuperBerkRoomByte | |||
| AF64 | LD A,$7A | Load A with 7A. | ||
| AF66 | JR Initialise_New_Game_WriteRoomByte | Jump to Initialise_New_Game_WriteRoomByte to set the temporary room/state byte. | ||
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This entry point is used by the routine at Initialise_Room_Display.
Super Berk path: use room/state byte 68.
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| Initialise_New_Game_SuperBerkRoomByte | AF68 | LD A,$68 | Load A with 68. | |
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This entry point is used by the routine at Initialise_Room_Display.
Advance the small position count before writing the room/state byte.
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| Initialise_New_Game_Branch | AF6A | INC E | Advance the low byte of the pointer/offset in DE. | |
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Write the room/state byte and prepare to fill the attribute-file base row.
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| Initialise_New_Game_WriteRoomByte | AF6B | LD ($7307),A | Set the temporary room/state byte (CurrentTextAttribute). | |
| AF6E | LD B,$80 | Load B with 80 as a loop counter. | ||
| AF70 | LD D,$00 | Clear D (high byte of a pointer/offset). | ||
| AF72 | LD HL,$5A80 | Point HL at the attribute-file base (5A80 (attribute buffer)). | ||
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Print a full attribute-file row of glyphs, then initialise the room display.
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| Initialise_New_Game_PrintAttrRow | AF75 | CALL Print_Character | Call Print_Character to print Character. | |
| AF78 | INC HL | Advance 5A80 (attribute buffer) by one byte. | ||
| AF79 | DJNZ Initialise_New_Game_PrintAttrRow | Decrease the loop counter in B and jump to Initialise_New_Game_PrintAttrRow if more iterations remain. | ||
| AF7B | CALL Initialise_Room_Display | Call Initialise_Room_Display to initialise the room display. | ||
| AF7E | RET | Return. | ||
| Prev: AF01 | Up: Map | Next: AF7F |