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Routines |
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Used by the routine at dY_obj_shorten.
As dX_obj_hit_test, for Y: stopped in Y is bit 1 of +$0C, harm passes the same way, and a pushable obstacle takes on the mover's dY.
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| dY_obj_hit_test | CBFE | CALL do_objs_intersect_on_y | no overlap in Y: next object | |
| CC01 | JR NC,dY_obj_next | |||
| CC03 | SET 1,(IX+$0C) | stopped in Y | ||
| CC07 | LD A,(IX+$0D) | mover's bit 7 becomes the obstacle's bit 6 | ||
| CC0A | RRCA | |||
| CC0B | AND $40 | |||
| CC0D | OR (IY+$0D) | |||
| CC10 | LD (IY+$0D),A | |||
| CC13 | RLCA | obstacle's bit 5 becomes the mover's bit 6 | ||
| CC14 | AND $40 | |||
| CC16 | OR (IX+$0D) | |||
| CC19 | LD (IX+$0D),A | |||
| CC1C | BIT 2,(IY+$07) | a pushable obstacle takes on our dY | ||
| CC20 | JR Z,dY_obj_shorten | |||
| CC22 | LD A,(IX+$0A) | |||
| CC25 | LD (IY+$0A),A | |||
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