ChronosMM: Routine at 57098

57098: PLAYER_MOVEMENT

Used by the routine PLAY_GAME.
PLAYER_MOVEMENT	57098	LD A,(59651)	This is pointless - get PLAYER_INPUT_DATA and don't use it.
	57101	RRA
	57102	CALL GET_PLAYER_FIRING_POSITION	If Megalaser is off, this is CALL 57164. If it's on, it's CALL C,57164
	57105	LD HL,(59649)	PLAYER_X_COORD contains X position (8-?), PLAYER_Y_COORD contains Y position (0-29) The player moves in Y in 8p increments
	57108	LD DE,(59649)
	57112	LD A,(59651)	Get PLAYER_INPUT_DATA
	57115	RRA
	57116	RRA
	57117	JR NC,PLAYER_MOVEMENT_0
	57119	DEC H	Move player left
PLAYER_MOVEMENT_0	57120	RRA
	57121	JR NC,PLAYER_MOVEMENT_1	If we haven't looped, skip over moving right
	57123	INC H	Move player right
PLAYER_MOVEMENT_1	57124	RRA
	57125	JR NC,PLAYER_MOVEMENT_2
	57127	INC L	Move player down
PLAYER_MOVEMENT_2	57128	RRA
	57129	JR NC,PLAYER_MOVEMENT_3
	57131	DEC L	Move player up
PLAYER_MOVEMENT_3	57132	LD A,H
	57133	CP 30
	57135	JR C,PLAYER_MOVEMENT_4
	57137	LD H,D	Player is too far right; return to previous horizontal position
PLAYER_MOVEMENT_4	57138	LD A,L
	57139	CP 8
	57141	JR C,PLAYER_MOVEMENT_5
	57143	LD D,A
	57144	LD A,(59675)
	57147	CP 6
	57149	JP C,PLAYER_MOVEMENT_6
	57152	LD A,D
	57153	CP 45
	57155	JR NC,PLAYER_MOVEMENT_5
	57157	JR PLAYER_MOVEMENT_6
PLAYER_MOVEMENT_5	57159	LD L,E	Move player back to previous vertical position
PLAYER_MOVEMENT_6	57160	LD (59649),HL	Store player position to PLAYER_X_COORD and PLAYER_Y_COORD
	57163	RET