Routines
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49482: Draw Decorative Line
Used by the routine at GameEntryPoint.
Draws a decorative horizontal pattern on screen as a separator.
decorative-line
DrawDecorativeLine 49482 CALL 49423 Call 49423.
49485 LD A,36 Store the width value (36) at *DecorativeLine_Width.
49487 LD (49652),A
49490 LD HL,20704 Initialise the screen buffer starting point (20704) at *DecorativeLine_ScreenPosition.
49493 LD (49654),HL
49496 LD A,2 Load the height value (2) into A.
DrawDecorativeLine_Custom 49498 LD (49659),A Store the height value in *49659.
49501 CALL 49474 Call 49474.
49504 LD HL,20800 HL=20800 (screen buffer location).
49507 LD DE,49552 DE=Data_DecorativeLine.
49510 LD B,6 Set a counter in B for 6 rows.
DrawDecorativeLine_RowLoop 49512 LD C,8 Set a counter in C for 8 repetitions.
49514 PUSH BC Stash the row counters and screen position on the stack.
49515 PUSH HL
DrawDecorativeLine_SegmentLoop 49516 LD B,4 B=4.
49518 PUSH DE Stash DE on the stack.
DrawDecorativeLine_CopyPatternLoop 49519 LD A,(DE) Copy the pattern byte to the current screen position.
49520 LD (HL),A
49521 INC DE Increment the pattern pointer by one.
49522 INC L Increment the screen position column by one.
49523 DJNZ DrawDecorativeLine_CopyPatternLoop Decrease counter by one and loop back to DrawDecorativeLine_CopyPatternLoop until counter is zero.
49525 POP DE Restore the pattern pointer from the stack.
49526 DEC C Decrease the segment counter by one.
49527 JR NZ,DrawDecorativeLine_SegmentLoop Jump back to DrawDecorativeLine_SegmentLoop until all segments have been drawn.
Skip to the next pattern.
49529 INC DE Increment the pattern pointer by four.
49530 INC DE
49531 INC DE
49532 INC DE
49533 POP HL Restore HL and BC from the stack.
49534 POP BC
49535 INC H Increment H by one.
49536 DJNZ DrawDecorativeLine_RowLoop Decrease counter by one and loop back to DrawDecorativeLine_RowLoop until counter is zero.
Now colour the line BRIGHT WHITE.
49538 LD HL,23104 Write INK: BLACK, PAPER: WHITE (BRIGHT) to 0032 bytes starting from 23104 (attribute buffer location).
49541 LD DE,23105
49544 LD BC,31
49547 LD (HL),120
49549 LDIR
49551 RET Return.
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