Routines
Prev: 41986 Up: Map Next: 42629
42567: New High Score?
Used by the routines at Main_Game and Start_1UP_Game.
Check if either player has broken the high score.
Check_HighScore 42567 LD HL,45109 HL=high score.
42570 LD DE,45103 DE=1UP score
If this is not a two player game then we skip forward to Check_HighScore_1UP to only test for the 1UP score.
42573 LD A,(39980) Check Num_Players; is this a 2 player game?
42576 CP 2
42578 JR NZ,Check_HighScore_1UP If not, jump to Check_HighScore_1UP.
42678 mirrors Num_Players here. todo: why?
42580 LD (42678),A Store 2 at 42678.
Check 2UP score.
42583 LD HL,45106 HL=Score_P2 and call Is_HighScore.
42586 CALL Is_HighScore
42589 JR NC,Check_HighScore_Changes Jump to Check_HighScore_Changes if this is not a new high score.
Overwrite the high score with the 2UP score.
42591 LD BC,3 Copy the 2UP score over the current Hi_Score.
42594 LDDR
42596 LD DE,45103 DE=2UP score
42599 JR Check_HighScore_Restore Jump to Check_HighScore_Restore.
Checks if all three digits changed. todo: why?
Check_HighScore_Changes 42601 LD A,(42679) Check 42679; are there three digit changes?
42604 CP 3
42606 LD A,1 Store 1 at 42678 (skips forward to HighScore_Write_A6B6).
42608 JR NZ,HighScore_Write_A6B6
Else reset 42678.
42610 XOR A Write 0 to 42678.
HighScore_Write_A6B6 42611 LD (42678),A
Resets HL with 45112 so the 1UP score can also be tested.
Check_HighScore_Restore 42614 LD HL,45112 HL=45112.
Check_HighScore_1UP 42617 CALL Is_HighScore Call Is_HighScore.
42620 RET C Return if this is not a new high score.
Overwrite the high score with the 1UP score.
42621 PUSH HL Stash the high score memory address temporarily.
42622 EX DE,HL Overwrite the high score.
42623 LD BC,3
42626 LDDR
42628 POP HL Restore the high score memory address to HL.
Prev: 41986 Up: Map Next: 42629