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Routines |
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Used by the routine at RunGame.
Sets up everything for a new game: the lives, the scores, the gauges, the bottles and the details of the second player if there is one. The entry point at StartGame_Life is also used to start each life, and resets the player state.
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Colour the area at the bottom of the screen.
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| StartGame | DF1F | LD HL,$BF00 | Colour the area that is described by the rectangle at PanelFillRectangle, starting at the position BF00. | |
| DF22 | LD DE,$DF1C | |||
| DF25 | CALL FillRectangle | |||
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Give the first player five lives.
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| DF28 | LD A,$05 | Set the number of lives to 05. | ||
| DF2A | LD ($DEDE),A | |||
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Clear the score of the first player and the digits of the scores of both players.
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| DF2D | LD HL,$DEF9 | Clear the three bytes of the score of the first player. | ||
| DF30 | LD B,$03 | |||
| DF32 | CALL ClearBytes | |||
| DF35 | LD HL,$E132 | Clear the five digits of the score of the first player in the panel text. | ||
| DF38 | LD B,$05 | |||
| DF3A | CALL ClearBytes | |||
| DF3D | LD HL,$E144 | Clear the five digits of the score of the second player in the panel text. | ||
| DF40 | LD B,$05 | |||
| DF42 | CALL ClearBytes | |||
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Set up the two gauges.
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| DF45 | LD DE,$A59D | Copy the starting values of the gauges, which empty the bars and set the targets to full. | ||
| DF48 | LD HL,$DFA3 | |||
| DF4B | LD BC,$0008 | |||
| DF4E | LDIR | |||
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Mark all of the bottles of the level as not yet collected.
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| DF50 | LD HL,$DEE1 | Point HL at BottleStates. | ||
| DF53 | LD A,$81 | Set the state of an uncollected bottle. | ||
| DF55 | LD B,$14 | Set the number of bottles to 14. | ||
| StartGame_Loop | DF57 | LD (HL),A | Set the state of a bottle. | |
| DF58 | INC HL | Move on to the next bottle. | ||
| DF59 | DJNZ StartGame_Loop | Loop back to StartGame_Loop until all of the bottles have been done. | ||
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Clear the restart position, the current player and the bottle flag, and go to the first level.
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| DF5B | XOR A | Clear the restart position. | ||
| DF5C | LD ($DEF7),A | |||
| DF5F | LD ($DEDD),A | Make the first player the current player. | ||
| DF62 | LD ($DEFC),A | Clear the bottle flag of the player. | ||
| DF65 | LD A,$00 | Set the number of the level to zero. | ||
| DF67 | LD ($DEDF),A | |||
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Copy the details of the first player to the second player.
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| DF6A | LD HL,$DEDE | Copy the details of the first player, which are 1F bytes, to those of the second player. | ||
| DF6D | LD DE,$DEFD | |||
| DF70 | LD BC,$001F | |||
| DF73 | LDIR | |||
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Take the lives and the bottles away from the second player if there is only one player.
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| DF75 | LD A,($60FD) | Fetch the number of players. | ||
| DF78 | AND A | Test it. | ||
| DF79 | JR NZ,StartGame_Life | Jump to StartGame_Life if there are two players. | ||
| DF7B | LD ($DEFD),A | Clear the lives of the second player. | ||
| DF7E | LD ($DEFF),A | Clear the bottles of the second player. | ||
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This entry point is used by the routine at RunGame.
Start a life. Reset the heading of the player, the message, the counter of the player and the countdown timer.
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| StartGame_Life | DF81 | XOR A | Clear the heading of the player. | |
| DF82 | LD ($B551),A | |||
| DF85 | LD ($CE59),A | Clear the state of the message. | ||
| DF88 | LD ($5D00),A | Clear the counter of the player. | ||
| DF8B | LD A,$28 | Start the countdown timer at 28. | ||
| DF8D | LD ($A2DF),A | |||
| DF90 | LD A,$04 | Set the byte that is patched into the controls at AB7D to 04. | ||
| DF92 | LD ($AB7D),A | |||
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Fill the first gauge, and draw the direction gauge with the needle at its start.
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| DF95 | LD HL,$6000 | Set the first gauge to full. | ||
| DF98 | LD ($A59F),HL | |||
| DF9B | LD A,$08 | Set the heading of the needle to 08. | ||
| DF9D | LD ($5CD8),A | |||
| DFA0 | JP DrawDirectionGauge | Draw the direction gauge. | ||
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