Nightshade: Routine at D70A

D70A: Update Fragment

The routine for objects of type 8C to 8F, the fragments that fly out of a monster that has been destroyed. A fragment moves in a straight line, and turns into a burst when it hits something.
UpdateFragment	D70A	RES 1,(IX+$07)	Clear the flag that shows that the fragment has been drawn.
	D70E	LD A,(IX+$05)	Set the velocity of the fragment from its speed and direction.
	D711	CALL SetVelocityFromSpeed
	D714	CALL TestMove	Check whether the scenery blocks the move.
	D717	CALL MoveObject	Move the fragment.
	D71A	CALL NextSpriteNumber	Change the sprite of the fragment.
	D71D	BIT 0,(IX+$07)	Return if the fragment has not hit anything.
	D721	RET Z	Return if the fragment has not hit anything.
	D722	LD (IX+$00),$0C	Turn the fragment into a burst and return.
	D726	RET	Turn the fragment into a burst and return.