Gunfright: Routine at B719

B719: Handle Bystander

Type 06: a bystander who wanders about the town. He goes away when the sheriff is more than two cells away. If he is shot, the bullet turns into a puff of smoke, the fine is taken from the bounty and the bystander dies. If the sheriff on foot touches him, the sheriff dies; if the mounted sheriff does, the bystander dies.
HandleBystander	B719	LD A,(IX+$05)	Fetch the speed of the bystander.
	B71C	CALL SetSpeedsFromHeading	Set the speeds from it.
	B71F	LD A,(IX+$07)	Fetch the flags of the bystander.
	B722	PUSH AF	Stash them on the stack.
	B723	CALL TestMove	Move around any walls.
	B726	POP AF	Retrieve the flags.
	B727	CALL PlayFootstepSound	Make a footstep sound if a foot has gone down.
	B72A	CALL MoveObject	Move the bystander.
	B72D	CALL UpdateDirection	Choose a new direction every so often.
	B730	CALL SetFrameAndFlip	Set the frame and the direction the bystander faces.
	B733	LD C,$02	Set the distance to two cells.
	B735	CALL CheckDistance	Check how close the sheriff is.
	B738	JP NC,HandleBody_Remove	Remove the bystander if the sheriff has moved away.
	B73B	LD BC,$B798	Point BC at BystanderSpriteLists.
	B73E	CALL ChooseSpriteList	Choose the sprite list.
This entry point is used by the routine at HandlePointer. Check whether a bullet or the sheriff has hit the bystander.
HandleBystander_CheckHit	B741	CALL CheckBulletHit	Check whether a bullet has hit the bystander.
	B744	JR C,ShootBystander	Jump to ShootBystander if it has.
	B746	CALL CheckSheriffTouch	Check whether the sheriff is touching the bystander.
	B749	RET NC	Return if not.
	B74A	LD A,(IY+$00)	Fetch the type of the sheriff.
	B74D	CP $15	Jump to TakeFine if he is mounted.
	B74F	JR Z,TakeFine	Jump to TakeFine if he is mounted.
	B751	CALL TakeFine	Take the fine from the bounty.
Continue on to KillSheriff.