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Routines |
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A table entry is nine bytes: +0 the type, 0 once the object has been collected; +1 to +4 where it starts, as x, y, z and room; +5 to +8 where it is now, in the same order. Here the type is written and the starting position copied to the current one.
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| init_obj_loop | C489 | LD A,E | type 96 + (kind mod 8) | |||||||
| C48A | AND $07 | |||||||||
| C48C | OR $60 | |||||||||
| C48E | LD (HL),A | |||||||||
| C48F | INC HL | on to +1, and the next kind | ||||||||
| C490 | INC E | |||||||||
| C491 | PUSH DE | copy +1..+4, where it starts, to +5..+8, where it is | ||||||||
| C492 | EX DE,HL | |||||||||
| C493 | LD HL,$0004 | |||||||||
| C496 | ADD HL,DE | |||||||||
| C497 | EX DE,HL | |||||||||
| C498 | LD BC,$0004 | |||||||||
| C49B | LDIR | |||||||||
| C49D | EX DE,HL | |||||||||
| C49E | PUSH HL | until the sprite table at sprite_tbl, which follows the last entry | ||||||||
| C49F | LD BC,sprite_tbl | |||||||||
| C4A2 | AND A | |||||||||
| C4A3 | SBC HL,BC | |||||||||
| C4A5 | POP HL | |||||||||
| C4A6 | POP DE | |||||||||
| C4A7 | JR C,init_obj_loop | |||||||||
| C4A9 | RET | |||||||||
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