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Routines |
| Prev: 97E5 | Up: Map | Next: 9896 |
| 9807 | LD HL,$E9FF | Set A1D2 the base address for attribute buffer pointing to score points | ||
| 980A | LD ($A1D2),HL | |||
| 980D | LD HL,$0000 | Set A1D5 the score points for enemy dying | ||
| 9810 | LD ($A1D5),HL | |||
| 9813 | LD A,(IX+$09) | Check enemy type | ||
| 9816 | CP $83 | is BRAIN? | ||
| 9818 | CALL Z,$9876 | Handle BRAIN destruction | ||
| 981B | LD A,(IX+$01) | Return if y-position of enemy is greater than $B0 | ||
| 981E | CP $B0 | |||
| 9820 | RET NC | |||
| 9821 | CP $10 | Return if y-position of enemy is less than $10 | ||
| 9823 | RET C | |||
| 9824 | LD HL,$84D8 | Set base address for explosion graphic data | ||
| 9827 | LD (IX+$04),L | |||
| 982A | LD (IX+$05),H | |||
| 982D | LD (IX+$0D),$08 | Set explosion counter | ||
| 9831 | LD (IX+$0F),$18 | Set height of explosion | ||
| 9835 | LD (IX+$0E),$03 | Set width of explosion | ||
| 9839 | LD A,(IX+$09) | Check enemy | ||
| 983C | OR A | Increment dead counter if not FOOT MAN | ||
| 983D | CALL NZ,$986E | |||
| 9840 | AND $0F | Set into HL to the address into the enemy points table | ||
| 9842 | LD E,A | |||
| 9843 | LD D,$00 | |||
| 9845 | LD HL,$9896 | |||
| 9848 | ADD HL,DE | |||
| 9849 | LD E,(HL) | Set DE to the points obtained | ||
| 984A | LD D,$00 | |||
| 984C | LD A,E | Check number of points | ||
| 984D | OR A | |||
| 984E | CALL NZ,$9945 | if points greater than 0 then increment score | ||
| 9851 | LD DE,$D528 | Set address for explosion sound | ||
| 9854 | CALL $D37F | Configure sound channel and mixer register | ||
| 9857 | LD (IX+$09),$FF | Set entity type explosion | ||
| 985B | LD (IX+$02),$00 | Reset sprite direction | ||
| 985F | LD A,(IX+$01) | Set explosion y-position (fixed grid) | ||
| 9862 | SUB $08 | |||
| 9864 | AND $F8 | |||
| 9866 | LD (IX+$01),A | |||
| 9869 | LD (IX+$03),$00 | Reset explosion debris expansion counter | ||
| 986D | RET | |||
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Increment enemy dead counter
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| 986E | LD HL,($A222) | Increment BIO GROWTH DEATH counter | ||
| 9871 | INC HL | |||
| 9872 | LD ($A222),HL | |||
| 9875 | RET | |||
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Handle the destroy of Brain enemy
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| 9876 | LD A,(IX+$11) | Increase wound counter | ||
| 9879 | INC A | |||
| 987A | LD (IX+$11),A | |||
| 987D | CP $0A | Return if counter is 10 | ||
| 987F | RET Z | |||
| 9880 | LD L,(IX+$04) | Point to the next BRAIN graphic data | ||
| 9883 | LD H,(IX+$05) | |||
| 9886 | LD DE,$0020 | |||
| 9889 | ADD HL,DE | |||
| 988A | LD (IX+$04),L | |||
| 988D | LD (IX+$05),H | |||
| 9890 | LD (IX+$14),$02 | Reset BRAIN health | ||
| 9894 | POP BC | Restore BC | ||
| 9895 | RET | |||
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