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[FC][魂斗罗][J][追踪弹]# r: w5 E1 L' A7 U
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时间:2023.04.30" W; [$ R( S0 ` `0 J0 M' l, Z
作者:FlameCyclone# l3 j4 [' y- [8 D! l* u6 V& V
内容:
* m' S2 D- G7 b U 1. 所有子弹追踪敌人
* J. I9 T+ B$ F" h( v 2. 选择键切换武器
# A& v( M f. F4 ~& ]2 e1 V 3. 优化选关按键组合, 从标题开始游戏后按住选择键不放进入选关界面
6 _5 M- m: B* W' i
6 Y$ O' M: N1 w8 y: b- Vflamecyclone.ys168.com
& @! f) E" ]. z6 w& H+ l2 e8 s + Y# f' l. q9 _% r) z, R
- Bullet_State = $0438 ;子弹状态 0:不存在 1:存在 2:销毁
' Y; m) i# U3 p! w$ A - Bullet_Type = $0388 ;子弹类型 0: 无 1:普通 2:M 3:F 4:S 5:L
~* l, W0 J0 _ - Bullet_Icon = $0368 ;子弹Icon 普通:1E M:1F F:22 S:1F-21 L:24(横向)23(纵向)25(右下)# u5 P; z( j: M, d0 }
- : e: G0 N, f, n0 c' F
- ;Bullet_Icon = $0368 ;子弹Icon 普通:1E M:1F F:22 S:1F-21 L:23(纵向)24(横向)25(右下)
1 d/ T- M8 h# z3 f/ y8 g+ ? - Bullet_Direction = $0378 ;L子弹方向 40左下 C0左上 80右上& {4 t, }9 o3 }9 P2 K8 |# b
- / N+ c# c9 j+ N8 G# b5 s
- Track_Enemy_Index = $60005 @3 s {8 B& G# y* o' c
- Enemy_Index_Begin = $6010/ @# v: E9 I: j9 c- r* C
- Enemy_Index_End = $6011
. N/ a) i- `7 [, N( V7 l
8 @/ g5 V' C2 O9 ?, S. S- Loop_Index_I = $6012; ?5 g* B/ Y4 x& |2 Z2 P# ]* o$ M# b
- Loop_Index_J = $6013
/ I$ \/ b. e8 H6 L - nEnemyIndex = $6014
1 t7 O. w" D% n: P4 E& C( m+ x+ l - Data_buffer = $6015+ L4 o2 W0 H: j( {$ j7 i
$ I0 V' V) b- f! |- Bullet_Y_Pos = $03B8 ;子弹垂直坐标" o" P. K2 A2 M2 ]( a! _9 e0 g9 P% v/ \
- Bullet_X_Pos = $03C8 ;子弹水平坐标
) S1 t8 X" C) ]7 ]& F( e - Bullet_Y_Speed = $03F8 ;子弹垂直速度; i+ U E( J+ O( l* {0 d$ p
- Bullet_X_Speed = $0408 ;子弹水平速度8 z' e M& j. Y, i3 Y
- Bullet_Z_Pos = $0418 ;子弹Z坐标8 U) } u, p7 s9 o4 Z
- Bullet_Owner = $0448 ;子弹所有者 0: 1P 2: 2P
& \) ? z. u' e* x4 F- N
E* i/ S2 ?" {' E- P- Enemy_State = $04B8 ;敌人状态$04B8 5:弹起爆炸 0:不存在 6:下落 7:原地爆炸- `) [5 {# S4 c1 f# r' |4 F
- Enemy_Blood = $0598 ;敌人血量
9 y/ t/ C) }; l* N7 ` - Enemy_Type_Addr = $0528 ;敌人类型7 M- E I5 V% \5 q" J. ?, M7 |8 Q Y
- Enemy_Blood_Addr = $0578 ;敌人血量, {( u( L3 P+ V* \- i
- Enemy_Y_Pos = $0324 ;敌人垂直坐标
6 b8 F+ m4 w) s8 S - Enemy_X_Pos = $033E ;敌人水平坐标% X% u* n2 [: l5 v+ g
- Enemy_Y_Speed = $04E8 ;敌人垂直速度
+ O1 _ T+ A" _4 u" l - Bullet_Alive_State = $04B8 ;敌人状态 5:弹起爆炸 0:不存在 6:下落 7:原地爆炸4 L( b" i1 E5 v6 D" g
- + q9 L; M9 E' H
- Enemy_Index = $83 ;
3 P. h, l( @" ^* p2 q - Time_Count = $1A
9 l( I4 T5 I- @; ^ - Track_Bullet_Speed = $07 ;分配子弹追踪敌人频率6 \2 H% Y7 _9 Q& {# F6 Y8 t
- Track_Enemy_Speed = $03 ;子弹变向追踪敌人频率
/ H# P- n$ N/ Y0 R0 X& `3 m - ! K8 r8 @' k& R$ Q4 ]
- # G1 C' g- ^( ]
- .ORG $6100
$ M) H- a: F- \5 O - Process_Begin:
: n+ Q9 L7 h5 S0 e; ~7 b( S - JSR Enemy_Check
' [, U+ ?. @8 U- U6 U# [- b - JSR Track_Enemy_Check
1 Z n1 J) C5 M ^+ n - Process_End:
4 z- |& f6 W: I! q - JMP $E54F
5 l. b0 A W$ }' M7 c ^ - 6 ^" @, k8 T. Q: P6 |5 \
- Enemy_Check:4 X- d# u% P$ `% ?. g
- LDA Time_Count
6 }( K( u7 u8 Z8 k- C- b' D- T. H - AND #Track_Bullet_Speed
2 X3 T4 B6 G0 g$ t# @" V - CMP #Track_Bullet_Speed
# X2 c& M9 _5 k# p% U4 x" x) O - BNE Enemy_Check_End( d) g0 U) F# y3 d
- LDX #$0F
4 |1 X. v. d) `" K - Enemy_Check_Begin:
- N8 L$ ~& Y$ s! C. L: ?3 b4 C4 ^ - LDA Enemy_State,X
) o2 R# M' c9 Z" J' _ - BEQ Enemy_Check_Continue9 ~: O" s8 X+ |6 m2 E
- STX Enemy_Index" |9 R! c- R4 ~3 b, ]( e
- JSR Find_Begin_Enemy- a9 }; ]6 A/ y) v/ Z) T9 }# i3 s# h
- JSR Find_End_Enemy
* W5 e* z; Y) I0 Y! m/ Y - JSR Bullet_Track* f7 s* f6 L0 C- l' d% y( Y2 t
- 1 b; H3 t+ ]7 I o
- LDX Enemy_Index3 m) T% a/ q2 Y) J4 h! T1 j
- Enemy_Check_Continue:! f8 _/ G- E) ^& C9 A
- DEX
( t: R" X: x- `1 N$ t - BPL Enemy_Check_Begin9 X, B$ w7 D- {4 `' [+ ]
- Enemy_Check_End:
* d" i4 ^% b! V3 Y; U - RTS. ?( j8 Q. c/ X' K" h
-
4 I$ ~5 i7 O& P - Track_Enemy_Check:
, G. \: G# h }' J' `) H( H - LDA Time_Count. e* d) v9 R7 Y M2 b0 J3 F
- AND #Track_Enemy_Speed7 o* R9 u6 ?$ f- u+ F) y- Q
- CMP #Track_Enemy_Speed& h7 |* n5 Y/ K3 w; R2 K+ P. K
- BNE Track_Enemy_Check_End
- C1 t$ y" P/ |. P; ^! o - LDX #$0F0 r% v, M7 G0 _* E! e% Z
- Track_Enemy_Check_Begin:
" x' T" S% i" u7 \3 T( M - LDA Enemy_State,X& i0 Y! _! b9 ^- ^0 h
- BEQ Track_Enemy_Check_Continue
! a# _1 k7 l3 J' m1 O - STX Enemy_Index# l0 a# ]5 S# P9 E
-
5 G! M6 o) B3 o* `) { - LDA $40
5 p6 s5 ~" x8 _ u2 o0 R' t - LSR7 t8 p! `% I* c! O
- BCC Track_Enemy_Check_Begin_L1
5 D+ ?4 B, d' W. M - - [. Y& g2 l: r, s: z; l
- JSR Track_Enemy_Ex ;2, 4* ~. J& G; I3 `
- LDA #$00
! w$ i6 c" w" p" \: ` - BEQ Track_Enemy_Check_Begin_L2, V$ |' P- l# D' ?( E4 J& P0 h
-
* }3 J6 F1 n$ w* n2 H( t - Track_Enemy_Check_Begin_L1:- W' T; k: g0 a0 l
-
5 d- o% v+ K! l* J- p4 R - JSR Track_Enemy' }8 ?; @2 R5 h3 C
8 W( E! {' f: N- F- Track_Enemy_Check_Begin_L2:
7 ~' r. U: D) }) H& A+ M -
; `6 u+ ~7 a: D/ o - LDX Enemy_Index8 R- I) O- g5 {1 L
- Track_Enemy_Check_Continue:/ j( }3 U/ A9 H7 W o) `
- DEX0 \& e# a4 _" E
- BPL Track_Enemy_Check_Begin
' g. m( c& w' ] - Track_Enemy_Check_End:8 ?/ A% \( ^5 n/ O& R s/ Q7 m: }
- RTS
- M( D" {- U' ^/ r: F
% P# a# ?! R) X- 4 `9 [' I) h( b1 O
- ;查找第一个敌人. z) o" O' G) _# [& D
- Find_Begin_Enemy:0 k* i$ v7 R4 F0 A, ?# z. y9 P7 u
- LDX #$00: y0 Q/ g; Q1 K5 W
- Find_Begin_Enemy_Check:+ P9 t1 d& B. Y+ d
- LDA Enemy_State,X; m/ [( J+ E) L1 z9 f: S7 E" m
- BEQ Find_Begin_Enemy_Check_Continue& e3 V) u& |! a8 @" k% r7 a
- LDA Enemy_Blood,X
3 g7 e" G! ]7 ]! A6 v% b5 d8 [3 S - BMI Find_Begin_Enemy_Check_Continue
. L- K9 u: W* K1 }( r6 {3 ^- d - BNE Find_Begin_Enemy_End$ j$ U8 f( D/ Y" W
- # N3 g0 G& p/ L- T; u
- Find_Begin_Enemy_Check_Continue:
( j; j& w) ^# F/ U; {# f% ~ - INX
7 j: J9 n; ]# [) m1 ` - CPX #$102 k/ } s6 v/ `* w8 ]
- BCC Find_Begin_Enemy_Check
& s5 W( {% B! t, g. j: u2 c- C - Find_Begin_Enemy_End:
T" C5 @' m# ]7 n - STX Enemy_Index_Begin3 C5 A7 d0 q0 X) A; Q, ], d B# u
- RTS
& T$ U- a3 r* A
" o# ?/ m' G }, z* b- ;查找最后一个敌人; y7 j# [+ @- `0 Z7 C. K
- Find_End_Enemy:
4 i$ _! |1 C( a* C - LDX #$0F
0 u8 U$ r$ ]. W/ V$ _ - Find_End_Enemy_Check:% F% K& h$ D2 d& q# @
- LDA Enemy_State,X' u! q ]/ p- \- w
- BEQ Find_End_Enemy_Check_Continue0 O) @# m4 W# P# x+ i
- LDA Enemy_Blood,X9 }* Z! m# c- M! H( `* @
- BMI Find_End_Enemy_Check_Continue; p; N" S: V X
- BNE Find_End_Enemy_End
/ H" ]( z: O& P7 h. h8 M$ B - 7 {0 Y: T/ j7 E* I8 |" g# B: F5 Z) y
- Find_End_Enemy_Check_Continue:
% |3 z) j$ t1 l, X - DEX
) M, A2 A) G# g - BPL Find_End_Enemy_Check
0 ^1 q0 H4 U; g - Find_End_Enemy_End:
% w$ U; Q4 n7 U) K3 e - STX Enemy_Index_End) h" m6 A4 H" V3 ? u( p
- RTS
: M8 K* p$ \, Z' v V! F
) G5 ~; u& O; u+ P5 a: W2 I2 @- ;子弹追踪
v9 X) e, F. t7 c5 w# c4 S" V - Bullet_Track:! Q6 z+ z j. l4 g
- LDA Enemy_Index_Begin1 \& Y+ ~# `( W* I9 R& F
- STA nEnemyIndex ; int nEnemyIndex = nEnemyIndexBegin;( E6 r: h0 H( {' c4 n9 L$ z" m& x9 V
- LDX #$00 q' s" b2 M% D$ ]( W
- Bullet_Track_Check: ;for (int i = 0; i < _countof(nBullet); i++)& l% [; m) p* Q: j S& y5 v: a
- LDA Bullet_State,X
" U; v! L9 E: i5 g* U ` - BEQ Bullet_Track_Check_End ;if (0 == nBullet[i]) continue;
) X$ ~0 c. u2 G* J. F - STX Loop_Index_I
I4 _) c8 H0 |% H1 F$ ]$ h4 Z - . J: J# k8 s9 G3 E6 q, ]6 z# e
- JSR Bullet_Track_Enemy$ u; M: E2 d0 R2 u+ w6 O. F: [
- JSR Bullet_Tract_Direction0 I E+ F) T2 H
- , \. H, J- R6 v4 E L
- ;如果已经是追踪最后一个敌人, 则下次从第一个敌人开始追踪
/ X F2 ?* z: l+ L J - ;if (nEnemyIndex > nEnemyIndexEnd) nEnemyIndex = nEnemyIndexBegin;
8 W- @1 t2 q/ L8 }0 A& y - LDA nEnemyIndex V8 Z% y8 |- X
- CMP Enemy_Index_End
$ j/ z- R" |/ {* D( J7 o - BEQ Bullet_Track_Check_Continue* n1 J7 i1 q; V2 d2 N* H2 a
- BCC Bullet_Track_Check_Continue
# N& \6 F$ N1 W+ Q - LDA Enemy_Index_Begin. t" y2 ~' t7 b' R3 |5 H& g1 U
- STA nEnemyIndex
/ a7 f2 s4 h0 n4 L -
; G3 J- s& T9 L) X8 G - Bullet_Track_Check_Continue:
2 m3 e6 Z' q; V* X @9 ^$ l2 s0 H - LDX Loop_Index_I2 d g7 ?2 X3 I! u$ r2 }0 N7 V
- Bullet_Track_Check_End:
% ^) G f+ T+ x8 l# c/ v6 o - INX# l5 L# {* F ?: m0 P3 j
- CPX #$10
; H# f9 z( [9 f9 V+ t! _" _ - BCC Bullet_Track_Check4 d d% S5 M; N: B
- Bullet_Track_End:
8 K3 n6 _- D" }! j7 [' u" k - RTS
: T X, l. P$ J5 O$ ^4 _' I - 9 b6 k7 Y2 q5 P" N, K- f- ?
- ;给敌人分配子弹
& N4 b2 \' o, w0 n1 K2 @; M# w - Bullet_Track_Enemy:
8 e) F$ d( z! d - LDX nEnemyIndex ; for (int j = nEnemyIndex; j <= nEnemyIndexEnd; j++)
: b2 }' A! i5 \& z% i" }$ t4 \ - Bullet_Track_Enemy_Check:& z( {( u: W- G0 D- K1 t9 U0 ~% _
- STX Loop_Index_J% y2 M* a/ @! z
-
( { q' X3 g- Q7 c' Y) P4 G, O9 w - ;if (0 != nEnemy[j] && -1 == nTrack[i])
* Q2 y% ^; ?: B - LDA Enemy_State,X9 L r# ^, Q2 a1 _& C! Y
- BEQ Bullet_Track_Enemy_Check_Continue
% X1 N; ~% p9 |* d - LDA Enemy_Blood,X
6 d q4 m* \! J2 J- I8 I - BMI Bullet_Track_Enemy_Check_Continue
" t- O( R8 F* Y7 q+ o# t6 o0 \ -
$ ]: L7 k$ O, |2 }& M' l - LDX Loop_Index_I( C0 d- \+ z9 Q8 T# z8 c( @
- LDA Track_Enemy_Index,X; r# G: \9 K6 k1 l
- CMP #$FF
' e% y8 j% d/ l9 M- E4 D - BEQ Bullet_Track_Enemy_Init
- Y$ E3 k$ d* |5 U0 q( \ - 5 ~2 ]% o: }' z9 S) r
- Bullet_Track_Enemy_Init:6 ~2 d. Y& s* v
- LDA Loop_Index_J' \( ~" e5 _! N+ n
- STA Track_Enemy_Index,X ;nTrack[i] = j;0 e2 O$ C0 I5 Z' ]2 \; \/ r. Y, a
-
3 ]+ `' V( U$ G* u$ [. P2 m9 N - STA nEnemyIndex" h5 ]& C n* K+ `5 e$ M
- INC nEnemyIndex ;nEnemyIndex = j + 1;
4 B& Y" E. d5 e' ~' y - RTS ;break;
& x# z% Q$ n: @, X
+ n0 Q7 k! c" `4 c: K0 v# k- Bullet_Track_Enemy_Check_Continue:
; j# R1 V: h: M8 |* {0 ]/ ^1 h - LDX Loop_Index_J9 N( K& c& _8 f$ S& M6 J6 H
- INX ;j++% D8 ~6 z. h I m& f
- CPX Enemy_Index_End
- N2 B$ S+ d, b+ W; Y- D7 t - BEQ Bullet_Track_Enemy_Check# k3 E8 T' M7 j: a$ \( J4 H
- BCC Bullet_Track_Enemy_Check
: H7 x$ j: L. Y" E3 U6 R - Bullet_Track_Enemy_End:6 X; G; r1 d8 N
- RTS
: V, w* u! v+ ]0 F3 T
* K. S S5 S; p$ q/ P+ k- Track_Enemy:
( X c2 r, j! ^' L5 V+ I: y - LDX #$0F6 E( l' Z0 L# S6 K: u
- Track_Enemy_Begin:
4 V/ ?& U& d2 [! o; k' \ - LDA Bullet_Icon,X
+ [) K( ^2 B* \8 Y: J - BEQ Track_Enemy_Continue7 o) I$ a. ]$ _% w1 B5 F
- LDA Bullet_State,X5 L/ C4 ~! o3 c" G- g
- CMP #$01
5 s! d B! y! e" E" c - BNE Track_Enemy_Continue. S; g8 s( [& N4 q
-
# P+ m8 Z- |, m. Z - JSR Track_Enemy_Process
( M) X; S. J% w' X ]2 b. m9 J -
! \: h4 T: g3 r5 E+ t2 O - Track_Enemy_Continue:$ {! } F: B- k( o+ G( i
- DEX
1 Q3 z' v& _5 ^* a - BPL Track_Enemy_Begin) K& Q6 t+ d) N1 `' M
- RTS% @. g/ s; a+ s4 I! g
- , X, G$ q" e7 K$ S+ G
- ;普通关卡
% u) g7 i: Z+ L- k5 l/ q; x - Track_Enemy_Process:
0 N& l4 O9 C5 I8 ]2 I - LDA Track_Enemy_Index,X
8 x4 e8 b5 z7 |4 V. N" W - CMP Enemy_Index
j ~1 B& l" U9 C( w1 B - BNE Track_Enemy_End
1 L0 W+ a3 T" u# m - LDY Enemy_Index: H+ o7 {8 c4 y2 H+ z
- JSR Track_Enemy_Y, ?- t/ u) M- X# g% Z# H! o" ?
- LDY Enemy_Index. B! D* c$ e5 \- F; K6 v& [7 u; i
- JSR Track_Enemy_X
% _( g% O/ s- u# \- N - Track_Enemy_End:
% }: l% ]# |- J+ O( ]( D2 S - RTS
. V4 T3 l0 }2 l m. R -
; h1 b1 k' R: n5 s7 P( G6 F - Track_Enemy_Y:
* a& U; A+ T6 Q+ }9 }% G: W - SEC
: ]; L+ p; t$ }! i/ J" q - LDA Bullet_Y_Pos,X
" q. h0 p! t: d; v# N! C - SBC Enemy_Y_Pos,Y& o$ X3 q& r# W( y" S* {: G: _8 Z3 i
- BEQ Track_Enemy_Y_Equal
8 c6 F% w; n( p1 x - BCS Track_Enemy_Y_Greater
" s) M0 d7 @- I. U0 ]0 x - 4 H1 v0 G" N0 a0 z" y
- Track_Enemy_Y_Less: ;子弹Y < 敌人Y8 T3 }$ B" c2 O0 R2 v3 h/ m' A
- CMP #$FC
) i9 K; m+ I* X1 X, j+ \ - BCC L1_1
# Z2 I5 N9 `( a - CMP #$FE
: I- `' n' t7 D) e) R# n - BCC L1_2
W6 l. |1 ]2 F$ h& o - LDA #$00; x4 O4 C2 s" I- E) ?+ N7 M6 q
- STA Bullet_Y_Speed,X/ k+ Z9 v. j4 @5 Q U! h$ y. t
- RTS
/ }' r9 B C; g2 _! y - L1_1:
" t) |) W S( a: P3 D; F- V: x3 h - LDA Bullet_Type,X: O) ]4 T" V x1 J e
- AND #$0F/ r# [0 c) k: A7 D4 r$ ]# C$ w4 A4 g) y
- TAY: j( [- m- U& V7 ~
- LDA Bullet_Speed_Data,Y; ?/ d9 I1 V- n9 u8 n
- STA Bullet_Y_Speed,X& x+ C% B4 t+ j5 e; L: R
- RTS
( J x4 ]0 z/ R$ |+ A% D, t) T
3 [/ p# y2 k% C- L1_2: e# {" f1 ` \ r& y! `! `1 z- m% C
- STA Data_buffer2 Q: [8 b& T' x8 |
- LDA #$00
$ m. @% _/ t& ~( K! u1 i6 p; s8 S - STA Data_buffer6 C$ u& T+ j" U' g0 n& b; V) [
- LSR' o& O1 S8 ~1 }2 A" d- l
- STA Bullet_Y_Speed,X
! P0 L; q2 U' F* f+ e( ^; S - RTS5 r/ b! J7 s0 ^. |& Y; D
- 2 Q6 W4 ?2 K! M T# {) R: o
- Track_Enemy_Y_Greater: ;子弹Y > 敌人Y1 ~5 P. e4 a' q& y
- CMP #$04
5 x. u4 q5 Q' B4 k' G+ d, d - BCS L2_1
7 s) j5 c- c1 x! _6 _0 N$ h - CMP #$04
, G0 G+ d) F. _. m; j' ]9 o9 t - BCS L2_2
" k2 r p7 ?8 O+ p5 I1 A - LDA #$00
8 U* t. u# N U - STA Bullet_Y_Speed,X
" A- C; O( l( X$ [) I1 I( {7 _ - RTS
7 n x, a0 A: r: E6 ?1 ] - - R: ^$ X9 x4 q' d* [1 V$ j7 [5 m2 q
- L2_1:# E4 ?1 Y1 P$ e/ f* ^
- LDA Bullet_Type,X
9 w) |, F5 F- T) f6 V - AND #$0F) X3 ?( h" A' P- \4 ?
- TAY
* y4 I- W. D4 P7 t2 W) d7 E) p - LDA #$009 R0 X6 k7 C- s# J# Y5 `
- SBC Bullet_Speed_Data,Y
9 l8 E X# e, Q7 E2 U- F0 { - STA Bullet_Y_Speed,X
' K+ H, @9 ^. U; W3 [: l7 G2 Y. j) ` - RTS7 U; n g c% \
- 6 r6 o n2 v9 {1 ~. D: t
- L2_2:
/ i$ a, Y& w' X8 | - LSR
( {8 ~' U, U3 w6 _" P9 L - STA Data_buffer
+ U5 }, @) j9 `5 t, C( z g - LDA #$00
! x. K$ A* J) B- S! U - SBC Data_buffer
, l( X1 k& G2 A* j: i - STA Bullet_Y_Speed,X5 w: i, N# E8 u4 E3 `* j8 _* A6 Y
- RTS
: b( a( f7 i/ `7 X0 h# q0 ^, P9 @+ v -
( ]1 { G% g" H4 ^ - Track_Enemy_Y_Equal: ;子弹Y == 敌人Y8 X8 U8 z: ?) O. w
- LDA #$00
6 g! E' |/ {1 } - STA Bullet_Y_Speed,X
! n0 f7 B1 [ [ - RTS
6 c! K1 s! K, u& X" ~ - 8 |9 F7 Q* G9 y5 _* n
- Track_Enemy_X:" N8 f. n! e9 U- \, G, \ U
- SEC
. \ X% s8 v, ^ u0 i$ \ - LDA Bullet_X_Pos,X; @: b0 j! A' t: i9 L
- SBC Enemy_X_Pos,Y7 E4 _0 z' j- V3 @, a
- BEQ Track_Enemy_X_Equal ;子弹X == 敌人X1 R/ b8 m( a5 ^* ]! Y
- BCS Track_Enemy_X_Greater ;子弹在敌人下方+ P2 |% A& W- E% T2 Z5 X! f
-
3 B4 V4 l$ y) s0 F1 U) o1 d+ v - Track_Enemy_X_Less: ;子弹X < 敌人X4 h& o+ a* ^7 F
- CMP #$FC
7 I+ Q. A2 k9 R1 W( r - BCC L3_1' ?; ]& m6 W: {0 H5 I' M: N* W& d
- CMP #$FE
0 J5 |! {* h! D% f( y) k - BCC L3_2
8 G5 l; `! D. k( m - LDA #$00. B) V1 t/ e; t$ ]& A% T
- STA Bullet_X_Speed,X) M: J5 w/ y8 V8 }$ V! X; x: z6 G
- RTS" q$ T; |9 j/ \5 ?' L
- L3_1: - a& f: ]" r6 D2 `! ~& P+ h
- LDA Bullet_Type,X M8 {1 F5 a% P
- AND #$0F
4 j, _7 Z! t5 v5 Y6 ?' X - TAY# ~$ L: u# Q; O2 d( q
- LDA Bullet_Speed_Data,Y
- V) b, C8 Q1 [' Y) s8 I: S% V) U% y9 } - STA Bullet_X_Speed,X+ A8 h/ y, w, u `4 u2 L
- RTS+ @" l: |5 g1 H6 W7 r7 x
- L3_2: + |& L. n1 ^. q! y9 t. X* F
- STA Data_buffer* d' X; b# j/ Y0 Q. K2 B6 Z
- LDA #$00, X* z9 Z: P8 \/ u
- STA Data_buffer
1 @# o2 g# q8 d5 w1 T7 A - LSR7 I8 a8 C) X& o, U/ ?+ Y) h
- STA Bullet_X_Speed,X5 F7 @) O4 v- n2 k4 n( e7 n
- RTS
6 o5 I& l- R4 R. ]# t! @ -
# | W3 ^- g) `" _( k/ t3 F, s - Track_Enemy_X_Greater: ;子弹X > 敌人X
( [# m0 }/ B# e) F, B - CMP #$04) P" X- R* ^4 e
- BCS L4_1
/ ]* I2 O( A3 u9 z - CMP #$02
" i, L) D5 ~0 v) p% C7 y - BCS L4_2& r9 ]3 H9 F5 b7 P7 X* N
- LDA #$002 q0 Y( o% n* W* \! e+ o! \
- STA Bullet_X_Speed,X+ i3 W: X) n5 T1 L3 v! k d4 x, G3 ]
- RTS" L4 ^1 _6 u, @" L4 U% w% _9 u
- ' j2 j6 l# ]( t2 Y6 g# G
- L4_1:
" C) x$ B6 ]0 Z- C0 J' m - LDA Bullet_Type,X; [ K5 t3 W9 C) G
- AND #$0F2 ?, e# I/ S( V; R& |! y) F
- TAY
+ d4 I8 b8 f1 o$ | - LDA #$00
' a3 g$ Z* W' i$ y - SBC Bullet_Speed_Data,Y
- J T7 N6 c7 W- V/ w- @8 O - STA Bullet_X_Speed,X P) _: s) Q- Z6 {# P8 ^" w. n
- RTS
4 Q: t& S1 d, n; V5 x+ K: g. t$ { - L4_2: 5 O! E9 [" U+ z7 g' Q
- LSR: {* z4 X7 R% k5 n9 f3 k
- STA Data_buffer4 {; y+ E7 V$ X# _1 U, }
- LDA #$004 x! f& k4 F2 \: e% E# @. H
- SBC Data_buffer; Y6 f1 g1 P+ H
- STA Bullet_X_Speed,X
9 O6 T" O8 ?! M }/ Q/ R - RTS- z* @1 s. P; f, x! @
- ' ?" z3 j* X) [4 k/ Q' f
- Track_Enemy_X_Equal: ;子弹X == 敌人X5 l- ? B8 A A
- LDA #$00
1 P) G# S$ G& s( d - STA Bullet_X_Speed,X2 ~4 }, v: s0 ?3 L+ a* R( w0 R
- RTS
0 Q) Z4 p/ u2 F, b/ L7 L9 U7 L: \ - & j) }7 S6 z9 m0 W
- Bullet_Speed_Data:# a& O8 M- c. a2 R
- .DB $00,$03,$03,$02,$03,$03
( k( l: x0 u' L" B, l. q1 d - : `$ ]4 I! [5 P ^* z, A1 e
- ;2, 4关) @7 u. o" z; Q. `5 u! q
- Track_Enemy_Ex:
$ O& Z6 y5 ^/ l- U& s9 L, Y1 i - LDX #$0F/ F- R3 w/ D3 h. x& ]* V
- Track_Enemy_Ex_Begin:
D' F) c: r+ o0 D - - z# |. o' A4 `/ w
- LDA Bullet_State,X
% S* s+ |4 [. Z, G4 Z2 O1 v) C - CMP #$01+ f9 }0 O g$ G3 F0 Q. D
- BNE Track_Enemy_Ex_Continue4 ^ X1 P! O% r3 ~% l4 L7 f
-
5 @9 Y7 ]( B- |4 S - LDA Track_Enemy_Index,X# ~3 I9 c# r) V9 c1 m7 ^( ]
- CMP Enemy_Index
! W$ V! ?0 J" O. e6 B4 m& @ - BNE Track_Enemy_Ex_Continue ;匹配追踪目标
! \0 Z7 J* _( R( P1 S4 t - ; f/ s- B% r0 V' ?
- LDY Enemy_Index8 K% V* W5 j2 W! g) H
- JSR Track_Enemy_Ex_X* X. z6 {+ Z4 C! z% d7 M8 ~: P
-
& S) y% `- V" B b - Track_Enemy_Ex_Continue:% r7 v. x6 W# w1 @5 d4 p
- DEX
* a( T& i8 R& e2 p- _- C - BPL Track_Enemy_Ex_Begin
2 b/ H2 V/ O8 C( B - Track_Enemy_Ex_End:
y+ a/ o1 F- N ~ - RTS
t# ]* Q" b' D k - ( f7 g! k7 f7 U* s, a+ I
- Track_Enemy_Ex_X:& M2 l! m2 T# B2 T7 T
- ;LDA Bullet_Z_Pos,X
: h4 c* t( I) E' S* e - ;CMP #$04" ]5 H# o$ d" @8 u" j
- ;BCC Track_Enemy_Ex_X_End+ r9 i& O; N- Q; A" ~4 z
- SEC U$ X- w9 W$ c/ J1 p
- LDA Bullet_X_Pos,X
! `& r, S* V/ R* L - SBC Enemy_X_Pos,Y" c7 C! L8 {: U* e$ C
- BCS Track_Enemy_Ex_X_Greater, t6 G+ R6 ~2 N
-
0 g; w' o |: t* D - Track_Enemy_Ex_X_Less: ;子弹X < 敌人X) x/ R& M' W8 {
- CMP #$FD
( Q+ ~/ f8 a: C" Z6 A$ [3 l - BCS Track_Enemy_Ex_X_Less_End
$ R/ }6 U) [" T$ N9 O - LDA $6020,X0 e+ b* {" C% a
- CMP #$2A
) {1 L" W0 Q! V; V - BEQ Track_Enemy_Ex_X_Less_L1
# Z* s1 A" G, G1 F; q( F, q; S7 W - LDA Bullet_Z_Pos,X# X& O$ `- m) i/ u' [" k. g
- LSR7 z4 J) s: u6 S6 O( Z8 X+ u
- TAY7 f( O) c& J( `5 \" O
- LDA Bullet_Speed_Data_Ex_R,Y: w$ L$ ?9 {! _& ^4 M
- STA Bullet_X_Speed,X
! E7 h# ?! Q1 C3 s' Z V" o - RTS
3 x3 t! H4 A! S; `" e0 `2 R* X4 n) F) q - Track_Enemy_Ex_X_Less_L1:
% N+ J' G3 M2 z. V* w - ' l$ h- z0 R2 ]$ N5 ~
- LDA Bullet_Z_Pos,X& U( f1 G5 r9 K- T% J' D0 _
- LSR5 b# z6 N: n4 C9 r6 O5 l
- LSR
5 _ s5 J) t, h1 f! ^ - TAY
) T5 w- B7 m( v - LDA Bullet_Speed_Data_Ex,Y
9 o' ?8 R( k/ W( m9 k9 C - STA Bullet_X_Speed,X
# y& {- s/ u' {6 \) y - RTS/ u+ v; V% k, ^/ k
-
! f3 F# u" `$ |! c1 K! H - Track_Enemy_Ex_X_Less_End:6 B2 _7 F$ q' }1 _' c8 L
- RTS
3 l* X$ x4 `- p
0 }7 D# ]7 j1 C. }3 [, E% B- Track_Enemy_Ex_X_Greater: ;子弹X > 敌人X
6 h% Y4 k/ O i1 @% M, Y& Y& u - CMP #$03
. p4 N1 p m% _) d6 X" U! V, }* ` - BCC Track_Enemy_Ex_X_End
9 v' v: j r0 O( i8 K% k. U6 a - LDA $6020,X' c: u) e6 `# V/ r$ F
- CMP #$2A
9 V* U! K: V# M {8 y* J - BEQ Track_Enemy_Ex_X_Greater_L1 w* y; b1 w8 g* U- N2 H. U6 r; L
- LDA Bullet_Z_Pos,X
% `9 V! N, \3 x* b4 M; ]7 H - LSR
; r4 j' _' Z3 b* e+ ]4 A* E - TAY. f- s d, r/ ?
- LDA #$00
/ a" \; b- R7 O+ \- x% q% ` - SEC! T0 i, R6 g% w+ f1 [
- SBC Bullet_Speed_Data_Ex_R,Y7 U0 J( K4 ^# N: z8 K, Y( N: _$ Q
- STA Bullet_X_Speed,X
9 B3 s8 w! e4 t1 z, g4 O# L% l - RTS
! J9 a) Z `/ C -
+ T/ `1 p; E5 `& r - Track_Enemy_Ex_X_Greater_L1
/ x" Z. I- { [3 Y( G6 K4 S - LDA Bullet_Z_Pos,X1 F0 A2 z# b S5 i. A
- LSR! V8 p1 D3 R+ \2 [
- LSR
O/ m) j* s/ p3 U" N - TAY4 e( q) x9 `$ \0 k1 \; _
- LDA #$005 H. _: J6 K+ E( h1 R9 l
- SEC- O6 f0 F, a& B
- SBC Bullet_Speed_Data_Ex,Y
% k% g7 a* B- S4 i9 i3 E1 {; v. c. f8 f - STA Bullet_X_Speed,X
1 U- T& \! u9 U: ?3 y - RTS7 L/ |5 k7 }8 {" b, [9 A: _
- 6 B' f- _/ y2 z3 s% w4 h# \ c
- Track_Enemy_Ex_X_End:/ B! l- J. S4 B4 H B: W
- RTS7 M0 c# w G; D5 j
-
9 A& G; ]$ H/ U% B - ;Bullet_Icon = $0368 ;子弹Icon 普通:1E M:1F F:22 S:1F-21 L:23(纵向)24(横向)25(右下)" m8 K9 d8 ]8 \7 y& d7 f7 Q
- ;Bullet_Direction = $0378 ;L子弹方向 40左下 C0左上 80右上
" @ X" t+ w5 J) \7 Z& i: K& U - Bullet_Tract_Direction:' |( O0 U, F6 |( e! a. t/ {
- LDA Bullet_Icon,X
1 l- {2 u, J5 K) J# b$ @ - CMP #$233 Z* X; j& a6 S0 I% m; r0 k
- BCC Bullet_Tract_Direction_End. c* a( \8 M% t% U; B7 m
-
/ c$ v+ R) s$ l7 m' a4 E* K9 K0 \ - ; X != 04 c, g2 c1 ^4 P" S: S: ~
- LDA Bullet_X_Speed,X
4 o" q! C+ L" {! x- | - BEQ Bullet_Direction_V- m! Z1 u* F' A' s7 e
- . K7 d* }- x2 @! `' @5 l
- LDA Bullet_Y_Speed,X
# |) d' Z: i1 s' U - BEQ Bullet_Direction_H& F. @- c9 Y7 g$ J* o" l
- 5 E {% R% M$ Q) e ^8 [1 o0 z+ Q
- LDA Bullet_X_Speed,X
. U3 _) {4 e' e$ G z$ j - BPL Bullet_Tract_Direction_Right
* L# l9 L# F- A* i i8 ] |5 q. I - Bullet_Tract_Direction_Left:+ s9 \5 p! D. z2 m/ h# H
- LDA Bullet_Y_Speed,X
2 R% _; _' d- C7 I6 ?& A - BMI Bullet_Direction_Left_Top
' X" g, o5 j/ c0 g( p - BPL Bullet_Direction_Left_Down
u( \5 F' U" B0 C- K - Bullet_Tract_Direction_Right:7 p2 ]0 U. U3 C, x
- LDA Bullet_Y_Speed,X
# \ G) r: H& P8 \: M8 G ]5 _ - BMI Bullet_Direction_Right_Top9 f: p; N J( O7 } |3 B, D
- BPL Bullet_Direction_Right_Down
+ Y; f9 d) Z; g+ `' E9 {+ `$ d) a - Bullet_Tract_Direction_End:7 r9 O7 ^# s/ h6 E
- RTS
7 f. [/ j L* i; f9 a0 g3 R/ i - ( w9 {/ J# h. E7 D) `3 L
- Bullet_Direction_Left_Top:; q. P, e! f8 ?9 ~
- LDA #$25+ k( h, Y( Y1 o: |
- STA Bullet_Icon,X
+ n5 @" Q8 T. L! B7 @ - LDA #$C0/ n8 y% i- N! c6 J# M: y+ ?
- STA Bullet_Direction,X
+ l, k6 L& b# g K* ^2 v% h. D - RTS
! @9 Q2 H1 p. H! B/ u0 I" ~6 d5 u7 F - + `) R- }; W4 R
- Bullet_Direction_Left_Down:
( ~1 C8 ?6 @* h- l& R - LDA #$25
) A0 V. W5 e0 d2 N% c0 m - STA Bullet_Icon,X* e4 a% v1 e0 W
- LDA #$40- Q6 E( V N1 i0 |
- STA Bullet_Direction,X
# `' a7 W0 c0 V v - RTS
# j( {& q* `; N3 P7 @. i6 L
2 H( d# I! T3 D* i( [% X" h! D5 }/ q- Bullet_Direction_Right_Top:
3 i% }; s) i! ?+ D - LDA #$25" ~1 E5 W0 `* }( T
- STA Bullet_Icon,X1 n* Z+ r- |. ^
- LDA #$80* J/ s0 U) q" R5 n! `/ W
- STA Bullet_Direction,X5 `" A( v9 Y2 f# h
- RTS
; I) @- _& Q& B# B2 T; ?# v o/ g
( y r {2 |# {+ p6 b0 }- Bullet_Direction_Right_Down:' }$ ?& D; @0 y- s0 N
- LDA #$255 ? N: N4 B4 E
- STA Bullet_Icon,X" E' P- h; U- s6 t4 z2 x. N
- LDA #$00
1 o D* M7 g1 X6 b - STA Bullet_Direction,X7 v3 C% j Z7 M5 S
- RTS! D1 w" q. q* ?- m9 ~9 C7 \ N
. H' Q P; E9 P% f8 V* W- Bullet_Direction_H:& S3 b" K7 S9 H8 M& K5 J
- LDA #$24
8 T# O( U- R0 g - STA Bullet_Icon,X
. s+ K8 u/ C, ~/ E: ^ N0 J - LDA #$00
: @- i+ I) G/ ?# w: F6 a, E r - STA Bullet_Direction,X; f8 \% O, E1 j' n4 ~' p( Y0 Z
- RTS
# s, M. Y; q' n% T+ d# L
2 }) \- k/ q4 D a: O- Bullet_Direction_V:
k4 N9 }6 g* j& r, F - LDA #$23
& q7 s9 F, a( f3 X( Y: Y - STA Bullet_Icon,X: s% K& B) x6 N( e
- LDA #$00" `# I$ d. Y- p; i9 Z4 v, ?0 Z% y
- STA Bullet_Direction,X
# p& A8 I+ i3 A- Q4 d- ?: ^ - RTS
- o. N, m3 o* U! |8 J* f
# h' Y7 q9 Z* r9 }7 {* |, u- Bullet_Speed_Data_Ex:$ Y: Q; H* H% e( Q9 l3 w
- .DB $01,$01,$02,$02,$02,$03,$03,$04,$04,$04
% Y8 i+ d* z) G$ `( Y3 Q' _ - 4 r/ P. u( ~( g# d
- Bullet_Speed_Data_Ex_R:9 j3 S) ]( {! [# H7 S
- .DB $02,$02,$03,$03,$04,$05,$06,$07,$08,$08. L$ J* J: a$ A# g: [5 J3 f9 o
-
复制代码 1 ] r8 t% U1 J+ U8 j, I
5 [" K4 z! c5 R- H- n. P
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