Routines
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25584: Initialise New Game
Used by the routine at StartGame.
Sets up the data for both players at the start of a game. Both players start with level 0 and four lives. The data for the player who is not active is then changed; the level is set to 255 so that when it is the turn of that player NextLevel (which adds one to the level) starts them on level 0 and the lives are made 5 for a two player game or 0 for a one player game.
Set the level and the lives for both players.
NewGame 25584 LD B,2 Set the player counter to 2 (one for each player).
NewGame_Loop 25586 PUSH BC Stash the player counter on the stack.
25587 XOR A Write 0 to ActivePlayer_Level.
25588 LD (24365),A
Set both players starting lives.
25591 LD A,4 Write 4 to ActivePlayer_Lives.
25593 LD (24366),A
25596 CALL ChangePlayer Call ChangePlayer to swap the player data between 1UP and 2UP players.
25599 POP BC Restore the player counter from the stack.
25600 DJNZ NewGame_Loop Decrease the player counter by one and loop back to NewGame_Loop until both players have been set up.
Note this is +1 to 25591 as you "spend a life", and 1UP goes first.
25602 LD A,5 Write 5 to InactivePlayer_Lives.
25604 LD (24370),A
The level for the other player starts at 255.
25607 LD A,255 Write 255 to InactivePlayer_Level.
25609 LD (24369),A
Handle a one player game; the other player has no lives.
25612 LD A,(24332) Fetch the game options.
25615 AND %00000001 Keep only bit 0 (set for a two player game).
25617 RET NZ Return if this is a two player game.
25618 LD (24370),A Write 0 to the lives of the inactive player (InactivePlayer_Lives).
25621 RET Return.
View the equivalent code in;
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