Jetpac: Routine at 773A

773A: Mask Sprite

Used by the routine at 726A.
MaskSprite	773A	LD A,C
	773B	AND A
	773C	JR Z,MaskSprite_6
	773E	DEC C
	773F	PUSH BC
	7740	PUSH HL
MaskSprite_0	7741	LD A,(DE)
	7742	CPL
	7743	AND (HL)
	7744	LD (HL),A
	7745	INC DE
	7746	INC L
	7747	LD A,L
	7748	AND $1F
	774A	JR NZ,MaskSprite_1
	774C	LD A,L
	774D	SUB $20
	774F	LD L,A
MaskSprite_1	7750	DJNZ MaskSprite_0
	7752	POP HL
	7753	CALL $72EE
	7756	POP BC
	7757	EXX
	7758	LD A,C
	7759	AND A
	775A	JR Z,MaskSprite_5
MaskSprite_2	775C	DEC C
	775D	PUSH BC
	775E	PUSH HL
MaskSprite_3	775F	LD A,(DE)
	7760	OR (HL)
	7761	LD (HL),A
	7762	INC DE
	7763	INC L
	7764	LD A,L
	7765	AND $1F
	7767	JR NZ,MaskSprite_4
	7769	LD A,L
	776A	SUB $20
	776C	LD L,A
MaskSprite_4	776D	DJNZ MaskSprite_3
	776F	POP HL
	7770	CALL $72EE
	7773	POP BC
MaskSprite_5	7774	EXX
	7775	JR MaskSprite
MaskSprite_6	7777	EXX
	7778	LD A,C
	7779	AND A
	777A	JR NZ,MaskSprite_2
This entry point is used by the routine at 726A.
ActorUpdateSizeFlipReg	777C	EXX
This entry point is used by the routine at 726A.
ActorUpdateSize	777D	LD A,($5DC5)
	7780	LD C,A
	7781	LD A,($5DC6)
	7784	OR C
	7785	RET Z
	7786	XOR A
	7787	LD ($5DC5),A
	778A	EXX
	778B	LD A,($5DC6)
	778E	LD C,A
	778F	XOR A
This entry point is used by the routine at 726A.
ActorUpdateHeightAndMask	7790	LD ($5DC6),A
	7793	EXX
	7794	JR MaskSprite