Krakout: Ball kill, the shared overlap helpers, then the per-type handlers

CCD2: Ball kill, the shared overlap helpers, then the per-type handlers

Tests one inhabitant against the live balls and kills it on a wide overlap. This entry also opens the inhabitant-behavior block. The shared helpers come first: this one, the sweep and the wide overlap. The per-type handlers follow, from the face monster's handler on.

Most handlers run the reaction-state machine and advance the animation. They then move or steer, despawn off the far edge, and call these helpers. They differ only in movement and in what an overlap does.

Input
C	the inhabitant's own pool-slot index (object_table)
IY	the inhabitant's logic record (obj2_record), whose animation frame and state a kill sets
B	the per-type death payload, banked into pending_score on a kill

Output
F	carry set on a kill, clear on a miss

The test is the wide overlap between the inhabitant's sprite and a ball's. Ball A is always tested. Ball B shares the secondary object's place and is tested only while that holds a ball. The slot holds a ball when its sprite pointer is the ball sprite. Either overlap is a kill.

ball_kill

CCD2

LD A,C

Name the inhabitant (C) as the first overlap operand and ball A as the second, then run the wide overlap test.

CCD3

LD (overlap_slot_1),A

CCD6

LD A,$01

CCD8

LD (overlap_slot_2),A

CCDB

CALL overlap_wide