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Routines |
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This increases the score by the amount specified in B then plots it.
Used by the routines at enter_room, increase_morale_by_10_score_by_50 and increase_morale_by_5_score_by_5.
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Increment the score digit-wise until B is zero.
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| increase_score | A0F9 | LD A,$0A | Set A to our base: 10 | |||||
| A0FB | LD HL,$A136 | Point HL at the last of the score digits | ||||||
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Start loop
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| increase_score_0 | A0FE | PUSH HL | Save HL | |||||
| increment_score | A0FF | INC (HL) | Increment the pointed-to score digit by one | |||||
| A100 | CP (HL) | Has the pointed-to digit incremented to equal our base 10? | ||||||
| A101 | JR NZ,increase_score_1 | No - loop | ||||||
| A103 | LD (HL),$00 | Yes - reset the current digit to zero | ||||||
| A105 | DEC HL | Move to the next higher digit | ||||||
| A106 | JR increment_score | "Recurse" - we'll arrive at the next instruction when we increment a digit which doesn't roll over | ||||||
| increase_score_1 | A108 | POP HL | Restore HL | |||||
| A109 | DJNZ increase_score_0 | ...loop until the (score specified on entry) turns have been had | ||||||
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FALL THROUGH into plot_score.
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