Routines
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CA07: Start a life
Used by the routine at AFTER_GAME.
Called by the main loop at the start of every game and after every death (AFTER_GAME, OBJECT_DONE). Copies the two start records (START_LEGS) over the robot's -- as a game starts (NEW_GAME_START), or as he last came through a doorway (EXIT_LOW_U) -- and takes a life. The copies' graphic is 56, so he appears through graphics 56-63 (PLAYER_APPEARING) and then takes the graphic kept at +$10 (PLAYER_APPEARED).
The first call of a game takes the five lives to four; below zero, after the fifth death, the game is over (GAME_ENDED).
Output
IX the legs' record
NEW_LIFE CA07 LD HL,START_LEGS Both records, legs and top; IX on the legs
CA0A LD DE,OBJECTS
CA0D PUSH DE
CA0E POP IX
CA10 LD BC,$0040
CA13 LDIR
CA15 LD HL,LIVES A life fewer; below zero, the game is over
CA18 DEC (HL)
CA19 JP M,GAME_ENDED
CA1C RET
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