Routines
Prev: 40832 Up: Map Next: 40873
40845: Paint room layout data entry's attributes, applying horizontal and vertical mirrors (room drawing)
Used by the routine at 39047.
See also analogous routine at 41081 (RLE terrain interaction data painting)
Input
HL Points to entry in lookup table for RLE attribute data (room layout graphics) at 60487
Output
B y-coordinate of graphic's bottom
C x-coordinate of graphic's right
40845 PUSH HL Store HL (current entry in lookup table for RLE attribute data)
40846 LD HL,23408 Modify instruction at 40983 to load x-coordinate of graphic's left edge into A...
40849 LD (40984),HL ...i.e. set end x-coordinate for painting right-to-left
40852 LD HL,41025 Modify instruction at 40987 to jump to 41025...
40855 LD (40988),HL ...i.e. advance HL up one character row in attribute file
40858 LD A,43 Modify instruction at 40990 with opcode 43 (DEC HL)...
40860 LD (40990),A ...
40863 POP HL Restore HL (current entry in lookup table for RLE attribute data)
40864 CALL 41035 Store coordinates of area to be coloured and point IX at RLE attribute data
40867 LD BC,(23410) Load BC with coordinates of graphic's bottom-right
40871 JR 40963 Jump to attribute painting routine
Prev: 40832 Up: Map Next: 40873