Pyjamarama: Routine at E54E

E54E: Draw Room.

Used by the routines at Game_Start, Update_RollRock and Room_Enter.

Input

Output

RoomDraw

E54E

LD A,(Wally_RoomNo)

Get room number.

E551

ADD A,A

Work out address of room pointer.

E552

LD E,A

E553

LD D,$00

E555

E558

ADD HL,DE

E559

LD E,(HL)

Get address to room description data.

E55A

INC HL

E55B

LD D,(HL)

E55C

EX DE,HL

E55D

LD A,(HL)

Get first byte and test for drawing of walls etc.

E55E

CP $F5

E560

CALL Z,Draw_CeilingWallFloor

RoomDraw_0

E563

LD A,(HL)

E564

CP $FF

E566

JR Z,RoomDraw_5

E568

CP $F4

E56A

JR NZ,RoomDraw_2

E56C

LD BC,Tile_DrawFlip

Modify code so that the furniture draw routine calls the function to draw upside down tiles.

RoomDraw_1

E56F

LD ($E1E0),BC

E573

LD ($E1D8),BC

E577

INC HL

E578

RoomDraw_2

E57A

CP $F3

E57C

JR NZ,RoomDraw_3

E57E

E581

RoomDraw_3

E583

CP $DE

E585

JR NZ,RoomDraw_4

E587

INC HL

E588

LD C,(HL)

Get address of action flag.

E589

INC HL

E58A

LD B,(HL)

E58B

INC HL

E58C

LD A,(BC)

E58D

OR A

If not set then handle action.

E58E

JR Z,RoomDraw_5

E590

else continue onto next byte.

RoomDraw_4

E592

LD E,A

E593

INC HL

E594

LD D,(HL)

E595

INC HL

E596

LD A,(HL)

Get index of furniture item.

E597

INC HL

E598

PUSH HL

E599

ADD A,A

Workout address of item string.

E59A

LD C,A

E59B

LD B,$00

E59D

LD HL,FurniturePtrTable

E5A0

ADD HL,BC

E5A1

LD A,(HL)

E5A2

INC HL

E5A3

LD H,(HL)

E5A4

LD L,A

E5A5

CALL FurnitureDraw

E5A8

POP HL

E5A9

RoomDraw_5

E5AB

LD A,(Wally_RoomNo)

E5AE

LD E,A

E5AF

ADD A,A

E5B0

ADD A,E

E5B1

LD E,A

E5B2

LD D,$00

E5B4

LD HL,Room_ObjSlots

E5B7

ADD HL,DE

E5B8

LD A,(HL)

E5B9

LD (BitmapX),A

E5BC

INC HL

E5BD

LD A,(HL)

E5BE

ADD A,$10

E5C0

LD (BitmapY),A

E5C3

INC HL

E5C4

LD A,(HL)

E5C5

ADD A,$50

E5C7

CALL Bitmap16Draw

E5CA

RET