|
Routines |
| Prev: 29463 | Up: Map | Next: 29621 |
|
Used by the routines at StartLevel and StartLife.
Shows the number of lives which each of the players has, at the top of the screen; the number is followed by the icon for a life. If a player has no lives then their space is blanked. Charlie's last movement (CharlieLastMovement) is also reset to be 2 pixels to the right.
|
||||||||
| DisplayPlayerLives | 29560 | LD HL,2 | Write 0002 to CharlieLastMovement (Charlie's last movement). | |||||
| 29563 | LD (24363),HL | |||||||
|
Controller for 1UP lives.
|
||||||||
| DisplayPlayerLives_1UP | 29566 | LD HL,64 | Call ScreenAddress with 0064 (the pixel co-ordinates for the 1UP lives) to get the screen address. | |||||
| 29569 | CALL ScreenAddress | |||||||
| 29572 | CALL FetchLives_1UP | Fetch the lives of 1UP using FetchLives_1UP. | ||||||
| 29575 | AND A | If 1UP lives are zero, jump to Handler1UPNoLives. | ||||||
| 29576 | JR Z,Handler1UPNoLives | |||||||
| 29578 | CALL HandlerDisplayLives | Else, there are lives to display so call HandlerDisplayLives. | ||||||
|
Controller for 2UP lives.
|
||||||||
| Controller2UPLives | 29581 | LD HL,176 | Call ScreenAddress with 0176 (the pixel co-ordinates for the 2UP lives) to get the screen address. | |||||
| 29584 | CALL ScreenAddress | |||||||
| 29587 | CALL FetchLives_2UP | Fetch the lives of 2UP using FetchLives_2UP. | ||||||
| 29590 | AND A | If 2UP lives are zero, jump to Handler2UPNoLives. | ||||||
| 29591 | JR Z,Handler2UPNoLives | |||||||
|
Handles displaying the lives count and UDG character.
|
||||||||
| HandlerDisplayLives | 29593 | ADD A,48 | Add 48 to convert to an ASCII character (starting at "0"). | |||||
| 29595 | CALL PrintScreen | Print the digit using PrintScreen. | ||||||
| 29598 | LD DE,29621 | Point DE at the lives icon (UDG_Life). | ||||||
| 29601 | PUSH BC | Stash BC and DE on the stack. | ||||||
| 29602 | PUSH DE | |||||||
| 29603 | JP PrintCharacter_Draw | Jump to PrintCharacter_Draw to print the icon. | ||||||
|
1UP has no lives.
|
||||||||
| Handler1UPNoLives | 29606 | CALL Handler2UPNoLives | Print two spaces using Handler2UPNoLives. | |||||
| 29609 | JR Controller2UPLives | Jump to Controller2UPLives. | ||||||
|
2UP has no lives.
|
||||||||
| Handler2UPNoLives | 29611 | LD A,32 | Fetch a space. | |||||
| 29613 | CALL PrintScreen | Print the space using PrintScreen. | ||||||
| 29616 | LD A,32 | Fetch a space. | ||||||
| 29618 | JP PrintScreen | Print a second space using PrintScreen. | ||||||
|
View the equivalent code in;
|
||||||||
| Prev: 29463 | Up: Map | Next: 29621 |
