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Deja Vu #04
31 марта 1998 |
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CODING - The rotation of sprites.
SoundTrack: MR.Z OF LASER SOFT '98 (C) BD
__________________________________________
;----------------------------------------;
; TURN SPRITES;
; (C) SerzhSoft, Shadrinsk, july 31, 1997;
;----------------------------------------;
ORG # 8000
JP EXAMPLE
;----------------------------------------;
, Used in changing teams
_NULL EQU 0
;----------------------------------------;
ALFA dw 0; angle sprite
;
COSALFA db 0; absolute value
db 0; sign: 0 =[+], # ff = [-]
;
SINALFA db 0; absolute value
db 0; sign: 0 =[+], # ff = [-]
;----------------------------------------;
ATTR_P EQU 23693; attributes screen
;----------------------------------------;
; Bits: 0 - over 0 / 1, 2 - inverse 0 / 1
4 - ink 'paper 9 (transparent Asia-Pacific.)
P_FLAG EQU 23697
;----------------------------------------;
; Demo
EXAMPLE
di
;
XOR A
LD (P_FLAG), A
;
ld hl, 0; angle Knuckle. sprite
ld a, 128; scale: 0.5:1
call INISYST; INIC-I system
coordinates
;
ld e, 0; X sprite
ld d, 0; Y sprite
ld ix, MYSPR2; ADR_SPR
ld c, (ix +0); width, bytes
ld b, (ix +1); height, pixels
inc ix
inc ix
call CORNSPR; output sprite
lion. top. corner
;
ld e, 200; X sprite
ld d, 0; Y sprite
ld ix, MYSPR1; ADR_SPR
ld c, (ix +0); width, bytes
ld b, (ix +1); height, pixels
inc ix
inc ix
call CORNSPR; output sprite
lion. top. corner
;
ld hl, 45; slope of 45 degrees.
ld a, 255; scale: 1:1
call INISYST; syst. coordinates
;
ld e, 100; X
ld d, 100; Y
ld ix, MYSPR2; ADR_SPR
ld c, (ix +0); XR_IN_BYTES
ld b, (ix +1); YR_IN_PIXELS
inc ix
inc ix
call CENTSPR; PUT_CENTRE_TURN_
SPRITE
;
LD A, # 04; [set 2, a]
LD (P_FLAG), A; inverse 1
;
ld hl, 90; slope of 45 degrees.
ld a, 255; scale: 1:1
call INISYST; syst. coordinates
;
ld e, 210; X
ld d, 100; Y
ld ix, MYSPR1; ADR_SPR
ld c, (ix +0); XR_IN_BYTES
ld b, (ix +1); YR_IN_PIXELS
inc ix
inc ix
call CENTSPR; PUT_CENTRE_TURN_
SPRITE
;
CALL WAITKEY
ei
ret
;----------------------------------------;
; Initializing the coordinate system for
; Subsequent conclusions sprites
; HL = 0 .. 359 - angle in degrees
; A = 0 .. 255 - 0:1 scale ... 1:1
INISYST
push af
ld (ALFA), hl
call SIN_HL
pop bc
push bc
ld c, a
sbc a, a
ld d, a
call MULT_BC
ld l, a
ld h, d
ld (SINALFA), hl
ld hl, (ALFA)
call COS_HL
pop bc
ld c, a
sbc a, a
ld d, a
call MULT_BC
ld l, a
ld h, d
ld (COSALFA), hl
ld ix, DTATAB
ld de, # 0000
ld a, d
LPIS1 push af
ld a, (COSALFA)
pop bc
push bc
ld c, a
call MULT_BC
ld h, a
sub e
ld e, h
ld c, a
ld a, (COSALFA +1)
rra
jr nc, GOIS1
ld a, c
neg
ld c, a
GOIS1 ld (ix +0), c
inc ix
ld a, (SINALFA)
pop bc
push bc
ld c, a
call MULT_BC
ld h, a
sub d
ld d, h
ld c, a
ld a, (SINALFA +1)
rra
jr nc, GOIS2
ld a, c
neg
ld c, a
GOIS2 ld (ix +0), c
inc ix
pop af
inc a
jr nz, LPIS1
ret
;----------------------------------------;
; Conclusion rotated sprite on the center
; Interruption - forbid! (Because of the stack)
; E = x, D = y - coordinates of the center
; C = xr - the width of sprite in the familiarity
; B = yr - the height of the sprite in pixels
; IX - data address sprite
CENTSPR
push bc
srl b
sla c
sla c
push bc
ld a, (SINALFA)
ld c, a
call MULT_BC
ld h, a
ld a, (SINALFA +1)
rra
ld a, h
jr c, GOCS1
neg
GOCS1 add a, e
ld e, a; X0-YR / 2 * SIN (A)
pop bc
push bc
ld a, (COSALFA)
ld b, a
call MULT_BC
ld h, a
ld a, (COSALFA +1)
rra
ld a, h
jr c, GOCS2
neg
GOCS2 add a, e
ld e, a; X0-YR / 2 * SIN (A)
-XR / 2 * COS (A)
pop bc
push bc
ld a, (COSALFA)
ld c, a
call MULT_BC
ld h, a
ld a, (COSALFA +1)
rra
ld a, h
jr c, GOCS3
neg
GOCS3 add a, d
ld d, a; Y0-YR / 2 * COS (A)
pop bc
ld a, (SINALFA)
ld b, a
call MULT_BC
ld h, a
ld a, (SINALFA +1)
rra
ld a, h
jr nc, GOCS4
neg
GOCS4 add a, d
ld d, a; Y0-YR / 2 * COS (A) +
+ XR / 2 * SIN (A)
pop bc
;--------------------------------------;
; Conclusion rotated sprite corner
; Interruption - forbid! (Because of the stack)
; E = x, D = y - the coordinates of a lion. top. angle
; C = xr - the width of sprite in the familiarity
; B = yr - the height of the sprite in pixels
; IX - data address sprite
CORNSPR
ld hl, DTATAB
LPCRS0 push bc
push de
push hl
ld (CORNSP1), sp
ld sp, DTATAB
ld a, c
LPCRS1 ld b, (ix +0)
LPCRS2 ex af, af '
pop hl
ld a, e
SIGN_XX add a, l
ld e, a
ld a, d
SIGN_XY sub h
cp # C0
jr nc, NO_PUT
ld d, a
;
LD C, # 2007
ld a, d
rra
scf
rra
rra
and # 5F
ld h, a
xor e
and C
xor e
rrca
rrca
rrca
ld l, a
ld a, d
xor h
and C
xor h
ld h, a
LD A, E
AND C
LD C, B
LD B, A
LD A, # 80
JR Z, IF_TRN
LP_TRN RRCA
DJNZ LP_TRN
IF_TRN LD B, C
LD C, A
LD A, (P_FLAG)
rlc b
jr c, NO_RES
xor # 04
NO_RES BIT 2, A
LD A, # A9; [xor c] - inv. 1
JR NZ, IF_TRN1
LD A, # 00; [nop] - inverse 0
IF_TRN1 LD (INV_TRN), A
LD A, (HL)
OR C
INV_TRN XOR C
LD (HL), A
LD A, (P_FLAG)
BIT 4, A
JR NZ, NO_PUT
LD A, H
RRA
RRA
RRA
AND # 03
OR # 58
LD H, A
LD A, (ATTR_P)
LD (HL), A
;
NO_PUT ex af, af '
add a, # 20
jp nc, LPCRS2
inc ix
dec a
jp nz, LPCRS1
EXCRS1 ld sp, 0
CORNSP1 equ $ -2
pop hl
pop de
ld a, d
SIGN_YY add a, (hl)
ld d, a
inc hl
ld a, e
SIGN_YX add a, (hl)
ld e, a
inc hl
pop bc
DEC B
JP NZ, LPCRS0
ret
;----------------------------------------;
, The rapid multiplication of B on C
; AL = B * C
MULT_BC
ld l, b
xor a
rr l
jr nc, $ +3: add a, c: rra: rr l
jr nc, $ +3: add a, c: rra: rr l
jr nc, $ +3: add a, c: rra: rr l
jr nc, $ +3: add a, c: rra: rr l
jr nc, $ +3: add a, c: rra: rr l
jr nc, $ +3: add a, c: rra: rr l
jr nc, $ +3: add a, c: rra: rr l
jr nc, $ +3: add a, c: rra: rr l
ret
;----------------------------------------;
Calculation of sine HL
; A = sin (HL) * 255, CF = sign (NC =[+], C =[-])
SIN_HL
dec h
jr z, GOSIN2
inc h
jr nz, SIN360
ld h, SINTAB/256
ld a, l
cp 180
jr nc, GOSIN1
ld a, (hl)
and a
ret
GOSIN1 sub 180
ld l, a
ld a, (hl)
scf
ret
GOSIN2 ld a, l
cp 104
jr nc, GOSIN3
ld l, a
ld a, 104
sub l
ld l, a
ld h, SINTAB/256
ld a, (hl)
scf
ret
GOSIN3 inc h
SIN360 ld bc, 360
and a
LPSIN1 sbc hl, bc
jr nc, LPSIN1
add hl, bc
jp SIN_HL
;----------------------------------------;
Calculation of the cosine of the HL
; A = cos (HL) * 255, CF = sign (NC =[+], C =[-])
COS_HL
dec h
jr z, GOCOS3
inc h
jr nz, COS360
ld h, SINTAB/256
ld a, l
cp 180
jr nc, GOCOS2
sub 90
jr c, GOCOS1
ld l, a
ld a, (hl)
scf
ret
GOCOS1 add a, 180
ld l, a
ld a, (hl)
and a
ret
GOCOS2 sub 90
ld l, a
ld a, (hl)
scf
ret
GOCOS3 ld a, l
cp 1914
jr nc, GOCOS4
add a, 166
ld l, a
ld h, SINTAB/256
ld a, (hl)
scf
ret
GOCOS4 cp 104
jr nc, GOCOS5
sub 14
ld l, a
ld h, SINTAB/256
ld a, (hl)
and a
ret
GOCOS5 inc h
COS360 ld bc, 360
and a
LPCOS1 sbc hl, bc
jr nc, LPCOS1
add hl, bc
jp COS_HL
;----------------------------------------;
, Waits for any key
WAITKEY
XOR A
IN A, (# FE)
CPL
AND # 1F
JR Z, WAITKEY
RET
;----------------------------------------;
; Alignment on segment (border 256)
ds $ / 256 * 256 +256- $
SINTAB insert "sincos.d"
;----------------------------------------;
MYSPR1 insert "spr1.spr"; sprite 1
MYSPR2 insert "spr2.spr"; sprite 2
;----------------------------------------;
DTATAB ds 512; DELTA_LINES
Or you can use all the same BUFFER
;----------------------------------------;
==========================================
;----------------------------------------;
; CIRCLE AND TEXTURED FILL;
; (C) SerzhSoft, Shadrinsk, july 31, 1997;
;----------------------------------------;
ORG # 8000
JP EXAMPLE
;----------------------------------------;
, Used in changing teams
_NULL EQU 0
;----------------------------------------;
; Address Textures O
TXRADR DW TEXTURE
;----------------------------------------;
ATTR_P EQU 23693; attributes screen
;----------------------------------------;
; Bits: 0 - over 0 / 1, 2 - inverse 0 / 1
4 - ink'paper 9 (transparent Asia-Pacific.)
P_FLAG EQU 23697
;----------------------------------------;
; Demo
EXAMPLE
XOR A
LD (P_FLAG), A
;
ld hl, -100
ld de, -100
ld a, 255
CALL CIRCLE
;
LD E, 10
LD D, 10
XOR A
CALL TXRFILL
;
ld hl, 200
ld de, 100
ld a, 50
CALL CIRCLE
;
LD E, 200
LD D, 100
LD A, 1
CALL TXRFILL
;
ld hl, 115
ld de, 150
ld a, 20
CALL CIRCLE
;
LD E, 115
LD D, 150
LD A, 2
CALL TXRFILL
;
LD A, # 04; [set 2, a]
LD (P_FLAG), A; inverse 1
;
LD E, 10
LD D, 170
LD A, 2
CALL TXRFILL
;
CALL WAITKEY
RET
;----------------------------------------;
, Waits for any key
WAITKEY
XOR A
IN A, (# FE)
CPL
AND # 1F
JR Z, WAITKEY
RET
;----------------------------------------;
; Algorythm designed by SerzhSoft (c) 1996
, Drawing a circle
; HL = x, DE = y (-32768 .. +23767)
; A = range (0 .. 255) for the 0 - point
CIRCLE
ld (X_CIRC), hl
ld (Y_CIRC), de
ld e, a
ld c, # 00
ld b, c
ld d, c
srl a
LPCIR1 ex af, af '
LPCIR2 call PUT8PX
inc c
ex af, af '
sub c
jr nc, LPCIR1
dec e
add a, e
ex af, af '
ld a, e
cp c
jr nc, LPCIR2
ret
;
PUT8PX call PUT4PX
;
PUT4PX ld a, c
ld c, e
ld e, a
ld hl, _NULL
X_CIRC equ $ -2
push hl
add hl, bc
call PUT2PX
pop hl
sbc hl, bc
;
PUT2PX inc h
dec h
ret nz
ld a, l
ld (X_NEW), a
ld hl, _NULL
Y_CIRC equ $ -2
push hl
add hl, de
call PUT1PX
pop hl
sbc hl, de
;
PUT1PX inc h
dec h
ret nz
ld a, l
cp # C0
ret nc
push de
ld d, a
ld e, _NULL
X_NEW equ $ -1
push bc
call PLOT
pop bc
pop de
ret
;----------------------------------------;
; Texture fills
; E = x, D = y, A = number of textures (0 .. 255)
TXRFILL
RRCA
RRCA
RRCA
LD H, A
AND # E0
LD L, A
XOR H
ADD A, TEXTURE/256
LD H, A
LD (TXRADR), HL
;
; Die, but not by number textures, and
To the address that is set in TXRADR
TXRFIL2
LD A, D
CP # C0
RET NC
LD A, (P_FLAG)
BIT 2, A
LD A, # A9; [xor c] - inv. 0
JR Z, IF_TXF0
LD A, # A1; [and c] - inv. 1
IF_TXF0 LD (INV_TXF), A
LD HL, BUFFER
LD A, # FF
PUSH AF
PUSH DE
LP_TXF1 POP DE
INC D
JP Z, GO_TXF0
DEC D
CALL POINTHL
JR NZ, LP_TXF1
EX AF, AF '
LP_TXF2 LD A, E
LD (HL), A
OR A
JR Z, GO_TXF1
DEC E
CALL POINTHL
JR Z, LP_TXF2
LP_TXF3 INC E
JR Z, GO_TXF8
GO_TXF1 PUSH HL
CALL POINT
JR NZ, GO_TXF7
LD A, (HL)
OR C
CALL TO_PLOT
POP HL
LD A, D
OR A
JR Z, GO_TXF4
DEC D
CALL POINTHL
JR Z, GO_TXF2
EX AF, AF '
LD A, B
JR GO_TXF3
GO_TXF2 EX AF, AF '
INC A
DEC A
JR NZ, GO_TXF3
LD A, C
PUSH DE
GO_TXF3 EX AF, AF '
INC D
GO_TXF4 LD A, D
CP # BF
JR NC, LP_TXF3
INC D
CALL POINTHL
JR Z, GO_TXF5
EX AF, AF '
AND A
JR GO_TXF6
GO_TXF5 EX AF, AF '
JR C, GO_TXF6
SCF
PUSH DE
GO_TXF6 EX AF, AF '
DEC D
JR LP_TXF3
GO_TXF7 POP HL
GO_TXF8 LD A, E
SUB (HL)
INC HL
LD (HL), D
INC HL
LD (HL), A
INC HL
JR LP_TXF1
;
LP_TXF4 ADD HL, DE
DEC HL
LD A, (HL)
DEC HL
LD D, (HL)
DEC HL
LD E, (HL)
PUSH HL
PUSH AF
CALL POINT
POP AF
LD B, A
LD A, E
RRA
RRA
RRA
RRA
LD A, D
RLA
LD DE, (TXRADR)
XOR E
AND # 1F
XOR E
LD E, A
LP_TXF5 LD A, (DE)
AND C
INV_TXF XOR C
XOR (HL)
LD (HL), A
RRC C
JR NC, GO_TXF9
INC L
LD A, E
XOR # 01
LD E, A
GO_TXF9 DJNZ LP_TXF5
POP HL
GO_TXF0 LD DE, BUFFER
AND A
SBC HL, DE
JR NZ, LP_TXF4
RET
;----------------------------------------;
, Comput. address and check the status of points
POINT
LD B, # 07
LD A, D
RRA
SCF
RRA
RRA
AND # 5F
LD H, A
XOR E
AND B
XOR E
RRCA
RRCA
RRCA
LD L, A
LD A, D
XOR H
AND B
XOR H
LD H, A
LD A, E
AND B
LD B, A
LD A, # 80
JR Z, GO_PNT
LP_PNT RRCA
DJNZ LP_PNT
GO_PNT LD C, A
AND (HL)
RET
;
POINTHL
PUSH HL
CALL POINT
POP HL
RET
;----------------------------------------;
Setting of a point
PLOT
CALL POINT
LD A, (P_FLAG)
PUSH HL
LD HL, # A9A9; over 1, inv. 1
BIT 0, A
JR NZ, IF_PLT1
LD L, # B1; [or c] - over 0
IF_PLT1 BIT 2, A
JR NZ, IF_PLT2
LD H, # 00; [nop] - inverse 1
IF_PLT2 LD (OVR_PLT), HL
POP HL
LD A, (HL)
OVR_PLT OR C
INV_PLT XOR C
;
TO_PLOT; entrance to Prospect algebra casting, etc.
LD (HL), A
LD A, (P_FLAG)
BIT 4, A
RET NZ
LD A, H
RRA
RRA
RRA
AND # 03
OR # 58
LD H, A
LD A, (ATTR_P)
LD (HL), A
RET
;----------------------------------------;
; Alignment on segment (border 256)
DS $ / 256 * 256 +256- $
;----------------------------------------;
; Different textures 2 * 2 familiarity
TEXTURE
DB% 11111111,% 11110000
DB% 11111111,% 11111000
DB% 11000000,% 00110100
DB% 11011111,% 11111010
DB% 11011111,% 11110100
DB% 11011010,% 11111010
DB% 11011101,% 11110100
DB% 11011010,% 11111010
DB% 11011111,% 11110100
DB% 11011111,% 11111010
DB% 11111111,% 11110100
DB% 11111111,% 11111010
DB% 01010101,% 01010100
DB% 00101010,% 10101010
DB% 00010101,% 01010100
DB% 00000000,% 00000000
;
DB% 11111111,% 11110000
DB% 11111111,% 11111000
DB% 11000000,% 00110100
DB% 11011111,% 11111010
DB% 11011111,% 11110100
DB% 11011000,% 11111010
DB% 11011010,% 11110100
DB% 11011000,% 11111010
DB% 11011111,% 11110100
DB% 11011111,% 11111010
DB% 11111111,% 11110100
DB% 11111111,% 11111010
DB% 01010101,% 01010100
DB% 00101010,% 10101010
DB% 00010101,% 01010100
DB% 00000000,% 00000000
;
DB% 11111111,% 11110000
DB% 11111111,% 11111000
DB% 11000000,% 00110100
DB% 11011111,% 11111010
DB% 11011111,% 11110100
DB% 11011111,% 11111010
DB% 11011111,% 11110100
DB% 11011111,% 11111010
DB% 11011111,% 11110100
DB% 11011111,% 11111010
DB% 11111111,% 11110100
DB% 11111111,% 11111010
DB% 01010101,% 01010100
DB% 00101010,% 10101010
DB% 00010101,% 01010100
DB% 00000000,% 00000000
;----------------------------------------;
; Buffer for storing the coordinates of the lines
, At casting (requires a large amount)
BUFFER EQU $
EX DE, HL; For example,
for foundations
Nogo mark X
AND A; additional
tive bu
children I, and their
SBC HL, BC; difference
corresponding
respectively:
EX DE, HL; 10-1 = 9, ie
IX
LD C, A; code bases
Nogo sign
LD A, (HL); additional code
Executive
mark
EX (SP), HL; HL = print
my number
SBC HL, DE; if it is <
additional
Nogo
JR C, GO_PRW3; value
is not printing
Tai
RST # 10; printing up
filler
Nogo sign
LD A, C; main
sign
RST # 10; print
JR GO_PRW4; result -
dvuhbukv.
combination
GO_PRW3 ADD HL, DE; reductive
Whether (+) y
number
GO_PRW4 EX (SP), HL; number -> to
stack
HL_PRW LD HL, _NULL; address the following
blowing
sign in
Table
DB # DD; work with
half
Register IX
DEC L; DEC XL -
reduce
counter
signs
JR NZ, LP_PRW1; twist cycle
while there is
More characters
POP HL; not removed
must start
zero with
Stack
RET; exit
Procedure
;----------------------------------------;
RIM_TBL; Table significance of the letters in napisa
SRI Roman numerals
DW 1000
DB "M"; M = 1000; CM = 900
DW 500
DB "D"; D = 500; CD = 400
DW 100
DB "C"; C = 100; XC = 90
DW 1950
DB "L"; L = 50; XL = 40
DW 1910
DB "X"; X = 10; IX = 9
DW 5
DB "V"; V = 5; IV = 4
DW 1
DB "I"; I = 1;-nop
;-------------------------------------- -; ; End of PDES LIB
2.0;; ;----------------------------------------;
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