| jetpac | Routines |
| Prev: 60a7 | Up: Map | Next: 6144 |
|
Resets level states/buffers, and checks if it's game over for a player. Used by the routine at 687a.
|
||||
| 60b7 | ld hl,$5d48 | HL=Jetman thruster animation object | ||
| 60ba | ld b,$0a | Reset all object states to be inactive | ||
| 60bc | call $6629 | |||
| 60bf | ld hl,$5d3c | |||
| 60c2 | res 1,(hl) | Set to unused state | ||
| 60c4 | ld hl,$5d44 | |||
| 60c7 | res 1,(hl) | Set to unused state | ||
|
Check if current and inactive player has lives, if not it is game over.
|
||||
| 60c9 | ld a,($5cf3) | Game Options | ||
| 60cc | and $01 | |||
| 60ce | jr nz,$60dd | Jump if two player | ||
| 60d0 | ld a,($5df1) | Current player lives | ||
| 60d3 | and a | |||
| 60d4 | jp z,$612f | Game over if no lives remaining | ||
| 60d7 | call $6094 | Initialise a new level | ||
| 60da | jp $6174 | Initialise next player | ||
| 60dd | ld a,($5df9) | Inactive player lives | ||
| 60e0 | and a | |||
| 60e1 | jr z,$60d0 | Game over if no lives remaining | ||
| 60e3 | ld a,($5df1) | Current player lives | ||
| 60e6 | and a | |||
| 60e7 | call z,$6127 | Game over if no lives remaining | ||
| 60ea | call $6144 | Switch players | ||
| 60ed | ld a,($5dd1) | Change current player (flip bits between $00 and $FF) | ||
| 60f0 | cpl | |||
| 60f1 | ld ($5dd1),a | |||
|
Switch rocket objects data for this new player
|
||||
| 60f4 | ld a,($5d34) | |||
| 60f7 | rlca | Calculate the offset | ||
| 60f8 | rlca | |||
| 60f9 | rlca | |||
| 60fa | and $38 | |||
| 60fc | call $6ec2 | Copy rocket sprite to buffer | ||
| 60ff | call $6094 | Initialise level | ||
| 6102 | jp $6174 | Initialise player | ||
|
Display the GAME OVER message for a player.
|
||||
| 6105 | ld a,$b1 | ASCII character for the number "1" + EOL bit | ||
| 6107 | ld ($6173),a | |||
| 610a | call $6064 | Initialise level screen | ||
| 610d | ld de,$6161 | Game Over message | ||
| 6110 | ld hl,$7038 | Y,X coords in the display file | ||
| 6113 | call $7134 | Draw text to the screen | ||
|
After displaying the text, pause for a while.
|
||||
| 6116 | ld b,$04 | |||
| 6118 | ld hl,$0000 | |||
| 611b | dec hl | |||
| 611c | ld a,h | |||
| 611d | or l | |||
| 611e | jr nz,$611b | |||
| 6120 | djnz $611b | |||
| 6122 | ret | |||
|
Handle message for player #2.
|
||||
| 6123 | ld a,$b2 | ASCII character for the number "2" + EOL bit | ||
| 6125 | jr $6107 | Append the number to the text, the display it | ||
|
Choose which player to show Game Over message for.
|
||||
| 6127 | ld a,($5dd1) | Jump if current player is #1 | ||
| 612a | and a | |||
| 612b | jr z,$6105 | |||
| 612d | jr $6123 | else, player is #2. | ||
|
Game Over: update scores, show game over message, and initialise system.
|
||||
| 612f | call $6361 | Update the high score | ||
| 6132 | ld a,($5dd1) | Jump if current player is #2 | ||
| 6135 | and a | |||
| 6136 | jr nz,$613e | |||
| 6138 | call $6105 | Display game over for player #1 | ||
| 613b | jp $61c9 | Reset the game | ||
| 613e | call $6123 | Display game over for player #2 | ||
| 6141 | jp $61c9 | Reset the game | ||
| Prev: 60a7 | Up: Map | Next: 6144 |