Stormbringer (48k): Routine at 41109

41109: Paint room layout data entry's terrain interaction parameters, applying horizontal mirror (room drawing)

Used by the routine at 39158.

See also analogous routine at 40873 (RLE attribute data painting)

Input
HL	Points to entry in lookup table for RLE terrain interaction data (room layout graphics) at 60889

Output
B	y-coordinate of graphic's bottom
C	x-coordinate of graphic's left

41109

PUSH HL

Store HL (current entry in lookup table for RLE terrain interaction data)

41110

LD HL,23410

Modify instruction at 41219 to load x-coordinate of graphic's right edge into A...

41113

LD (41220),HL

...i.e. set end x-coordinate for painting left-to-right

41116

LD HL,41261

Modify instruction at 41223 to jump to 41261...

41119

LD (41224),HL

...i.e. advance HL up one character row in terrain interaction data table at 23808

41122

LD A,35

Modify instruction at 41226 with opcode 35 (INC HL)...

41124

LD (41226),A

...

41127

POP HL

Restore HL (current entry in lookup table for RLE terrain interaction data)

41128

Store coordinates of area to be coloured and point IX at RLE terrain interaction data

41131

LD A,(23408)

Load C with x-coordinate of graphic's left edge...

41134

LD C,A

...

41135

LD A,(23411)

Load B with y-coordinate of graphic's bottom edge...

41138

LD B,A

...

41139

Jump to terrain interaction data painting routine