Ant Attack: Routine at 87D0

87D0: Colour the scanner

Used by the routine at MOVE_RESCUEE. Green if carry is set -- closer than last frame -- and red otherwise.
SCANNER	87D0	JR C,SCANNER_0
	87D2	LD A,$02
	87D4	JR SCANNER_1
SCANNER_0	87D6	LD A,$04
SCANNER_1	87D8	LD HL,$5A5A
	87DB	LD (HL),A
	87DC	INC HL
	87DD	LD (HL),A
	87DE	INC HL
	87DF	LD (HL),A
	87E0	INC HL
	87E1	LD (HL),A
	87E2	LD L,$7A
	87E4	LD (HL),A
	87E5	INC HL
	87E6	LD (HL),A
	87E7	INC HL
	87E8	LD (HL),A
	87E9	INC HL
	87EA	LD (HL),A
	87EB	LD L,$9A
	87ED	LD (HL),A
	87EE	INC HL
	87EF	LD (HL),A
	87F0	INC HL
	87F1	LD (HL),A
	87F2	INC HL
	87F3	LD (HL),A
	87F4	RET