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[FC][魂斗罗][J][追踪弹]
' h8 e+ [7 C, U R2 Q/ _# o p( C$ H0 R0 F- Z) [- O3 H* H! ]; ]
时间:2023.04.30
, p$ P, j' _/ w. R, |0 ?' P作者:FlameCyclone
$ x' L7 Y1 r+ ~! v% _内容: ?# ~; C. ]: Y9 o% v
1. 所有子弹追踪敌人
5 f0 T$ [! ^5 C: I 2. 选择键切换武器, c% m" W3 w i/ F6 v8 A1 j' q
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- B) [6 V8 }6 ^
& N3 ]+ e% {( \7 nflamecyclone.ys168.com$ b d. U( V X( Q9 F2 w3 Z2 ^

8 |0 M; m0 f( ^% T- Bullet_State = $0438 ;子弹状态 0:不存在 1:存在 2:销毁
) F5 w" I1 F2 g- k1 Y2 i - Bullet_Type = $0388 ;子弹类型 0: 无 1:普通 2:M 3:F 4:S 5:L
5 b- I& `" K# l. r5 g - 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)
+ b, A% g2 K) h9 W# w' H2 T - $ m- o3 R' D6 k7 S
- ;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)
! q4 [: j2 H- F# ~3 M- S; `: b - Bullet_Direction = $0378 ;L子弹方向 40左下 C0左上 80右上( C4 C' b" {: Z1 t
- $ a2 Q' [" _$ }$ ~) z2 B4 F# D/ P" T
- Track_Enemy_Index = $6000% c: J5 c2 ?$ e8 m {9 M1 S+ I
- Enemy_Index_Begin = $6010
1 l9 m- M3 k* T4 C, I0 U - Enemy_Index_End = $6011) j& C6 z$ K3 O O
# I2 V3 V4 s5 k- Loop_Index_I = $6012
* Y6 ^9 Q2 E3 k: H - Loop_Index_J = $6013
; {/ v) z) l4 D" I& T# y/ ` - nEnemyIndex = $6014
]4 I. q8 w3 q P( ~ B0 l - Data_buffer = $6015
+ ~3 Z: {$ B5 J) L4 k
! V1 \. P i( p ]/ G+ ~, C- `- Bullet_Y_Pos = $03B8 ;子弹垂直坐标
- d: n' c' o; z - Bullet_X_Pos = $03C8 ;子弹水平坐标2 e: B0 G: j6 \' {4 W) ^
- Bullet_Y_Speed = $03F8 ;子弹垂直速度
5 A# R: z4 h7 h+ n - Bullet_X_Speed = $0408 ;子弹水平速度: K$ e* a% c! D4 p1 R
- Bullet_Z_Pos = $0418 ;子弹Z坐标' j) t" V/ D5 B4 f
- Bullet_Owner = $0448 ;子弹所有者 0: 1P 2: 2P
% A$ c7 R$ u( y - ' K) h$ O5 q" p- c! n+ M
- 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
2 I N. Y) J x6 d - Enemy_Blood = $0598 ;敌人血量, y& c) L" q6 r0 K
- Enemy_Type_Addr = $0528 ;敌人类型/ y% f# C# J5 `! }
- Enemy_Blood_Addr = $0578 ;敌人血量
7 A; K2 r8 q) f8 } - Enemy_Y_Pos = $0324 ;敌人垂直坐标
* F; v2 c* q. N - Enemy_X_Pos = $033E ;敌人水平坐标1 _. @+ u$ S& d @6 h
- Enemy_Y_Speed = $04E8 ;敌人垂直速度% S X: S a1 @' C
- 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. _8 E! Z3 V9 s* q
- ! B: h- x" m( L5 }) g/ Z6 W
- Enemy_Index = $83 ;" H1 a$ h' i! k7 k0 A7 Z3 t* I
- Time_Count = $1A
1 M8 J; b" X; h - Track_Bullet_Speed = $07 ;分配子弹追踪敌人频率2 k8 a( \& |$ T; @5 x7 G* j
- Track_Enemy_Speed = $03 ;子弹变向追踪敌人频率
8 L. ^- o/ H% W3 B - ! Z) V4 a* c/ v/ x1 d
- 1 ^" x9 H' C4 c4 L% u: B
- .ORG $6100
l: Z' t2 D. I, E& M( D9 e# p - Process_Begin:/ b- E5 N6 F( m1 V4 c) ]$ n3 u9 X, E& I5 }
- JSR Enemy_Check
% t; Q! S% s: v5 P) I$ ^% a/ V - JSR Track_Enemy_Check
! z+ y2 M1 c1 n8 i; c0 l' i - Process_End:; |( |) a* T; h3 X6 r1 \ J! T% n
- JMP $E54F4 ^+ D( f! x; S4 d) F: N
- - ]8 R* c" Q" `6 S
- Enemy_Check:
! Q/ n3 n( x& s' v4 V+ C - LDA Time_Count" }$ f+ s! p6 C7 L; {! E
- AND #Track_Bullet_Speed
) x; X% S. }' Q9 P5 J0 Z" a - CMP #Track_Bullet_Speed a/ E& i% W& h% Y- W+ N1 z
- BNE Enemy_Check_End
' X# g3 s7 U0 R# q8 g/ Z - LDX #$0F
* B- y5 T: Q. Y) f# B0 R6 ` - Enemy_Check_Begin:
0 q& b7 z( h0 m4 S; w0 G - LDA Enemy_State,X1 T' Y, S2 y I1 W- t- S5 [
- BEQ Enemy_Check_Continue' t$ x6 z( y& q3 V- E
- STX Enemy_Index# q+ B/ u! i0 t. q) T
- JSR Find_Begin_Enemy& a3 I" Z7 K, [7 g3 _7 E
- JSR Find_End_Enemy8 u+ m( ]/ j) `
- JSR Bullet_Track
$ D$ N9 ?) V7 j; L - ' w/ q0 @. X5 w
- LDX Enemy_Index
9 U m: J# p- \. R2 @% t - Enemy_Check_Continue:
" f: m+ b0 y: T - DEX
/ z+ f" \: V7 Y5 h4 M* g - BPL Enemy_Check_Begin4 I" p+ x+ }2 V3 k0 q5 `
- Enemy_Check_End:
; ?& l% c1 M9 ]1 x* I - RTS
- N( g$ L" s# D/ R8 o4 u. P& c5 [ -
1 s& t- s! ?4 h& y - Track_Enemy_Check:
3 R! w5 |' D& U2 U+ V2 t- X ` - LDA Time_Count
$ ?; L6 U H% l* } - AND #Track_Enemy_Speed# r- o: s9 `' Y8 J1 G/ y
- CMP #Track_Enemy_Speed6 _5 @( e& H7 J. E# {; L+ c3 O3 S' z
- BNE Track_Enemy_Check_End* } O7 u9 H) `5 \: S
- LDX #$0F
/ S9 w; @: n0 t) B9 P* C5 Q - Track_Enemy_Check_Begin:
) F$ l# Y W# ]+ w - LDA Enemy_State,X# Y$ d& i! ~0 q+ O: P! B( Z
- BEQ Track_Enemy_Check_Continue, c+ I+ `5 d3 a" |! R, g* Z
- STX Enemy_Index+ B" A+ o: ]" _. d0 U/ k
- 7 I5 H& R; [7 x$ s' _ _
- LDA $40
' Q6 S! m; C7 q9 e1 T* H - LSR
6 o7 x% n) b/ r5 v - BCC Track_Enemy_Check_Begin_L1
/ R$ I# X9 G% q3 S8 G, O: u( D - ' Y6 ^9 r& d, ]8 ~* ~, {. D
- JSR Track_Enemy_Ex ;2, 44 h. V9 g+ P6 {, R( ]! @
- LDA #$00
6 H* @+ l9 C. g4 f0 k; z; d; n - BEQ Track_Enemy_Check_Begin_L2; c) w) ]& d8 B, T4 x. _
-
, s5 K& C, Q: \2 k - Track_Enemy_Check_Begin_L1:
6 T, c$ G- C, u; D4 M2 J -
m, F& C- I% O I - JSR Track_Enemy
" Q, A9 a9 W, k/ k$ y2 K* q5 Z2 i
7 w6 W0 v! |% j) J/ A5 g) [- Track_Enemy_Check_Begin_L2:
- {. N# Q* p% f9 ^ u1 r7 G" |4 q- Q) D -
, Z1 ]* T+ x* T$ W, l - LDX Enemy_Index
2 p; E4 t3 }% v2 e9 Q: t, N - Track_Enemy_Check_Continue:5 D' n/ g& ]3 M% _6 v$ m" ?( |4 D
- DEX
$ Y$ ]9 ^) m1 g5 g% L - BPL Track_Enemy_Check_Begin
4 k4 ?) B1 [; a8 Q; K - Track_Enemy_Check_End:) Y1 b" i+ K; [; B
- RTS& f: p$ p I; Z& n, z \# @
. z7 F" {, @+ }4 }9 `. b( N( V9 n- - l9 g' c _6 c& r* l
- ;查找第一个敌人
7 r( ]7 c+ L e8 j - Find_Begin_Enemy:# L* \% _- M) e4 F: ~) }
- LDX #$00
6 U- S. w0 n/ _5 Q5 n3 n$ M2 b - Find_Begin_Enemy_Check:, Q2 {; l& C6 q, }9 a8 o
- LDA Enemy_State,X
4 y' ~1 _, S y - BEQ Find_Begin_Enemy_Check_Continue
2 b/ \! @( `) b0 h5 i+ _* [! j - LDA Enemy_Blood,X
3 q" a+ {8 f9 _) p - BMI Find_Begin_Enemy_Check_Continue: C8 K0 M4 h+ f: F
- BNE Find_Begin_Enemy_End/ E' C' A" g) a! N: l
-
- i" E0 p% v+ N0 u% |$ |' }7 E - Find_Begin_Enemy_Check_Continue:) d# b! Y" w& H; R# a: o
- INX
/ p; e3 F8 o' P; x% u - CPX #$101 M; O' {7 p( O' J3 K
- BCC Find_Begin_Enemy_Check
6 o) R5 \6 j) \# J/ H$ B) H - Find_Begin_Enemy_End:
: v L. r/ |1 Y7 f3 o: i" t4 ` - STX Enemy_Index_Begin# r7 H+ x8 P3 g
- RTS. i% Y8 }" ?! @4 w& R" z
- |0 a1 r5 I; j+ B3 ]
- ;查找最后一个敌人. s0 x u( Z( x6 R% ?% ^/ N8 _# D
- Find_End_Enemy: d: [& y; p3 v( b+ x
- LDX #$0F
7 o: P; L% s. O2 _) _ Q - Find_End_Enemy_Check:8 J( H1 q2 @' n. H8 e/ Q( c5 v; J
- LDA Enemy_State,X6 g1 X0 t; G" s
- BEQ Find_End_Enemy_Check_Continue
: M2 U' z! B- N - LDA Enemy_Blood,X; Q# v: C; \4 y' F) G- b
- BMI Find_End_Enemy_Check_Continue w1 a. L) T% b0 ?! |
- BNE Find_End_Enemy_End
; e! d" R( p9 F7 X4 x' j7 ^8 m - # H+ [& n/ l- c
- Find_End_Enemy_Check_Continue:
4 _5 _0 t5 o Z( L+ \5 |; Y - DEX! a+ L' \9 n6 c9 O6 o5 A& V
- BPL Find_End_Enemy_Check
' X+ c d2 A# H; I# U - Find_End_Enemy_End:
0 N- V1 w7 b. Q0 N# _( f - STX Enemy_Index_End
' I3 c8 L) r! Y- O - RTS
; m; |; |5 Q* J7 R/ t
) A2 w: D/ p8 ^2 h+ l- ;子弹追踪
( x* y8 M1 d, Q0 r3 q' f - Bullet_Track:! {! L. j: _+ C7 h8 @) Q
- LDA Enemy_Index_Begin W: H+ @: J9 e1 B( L6 N
- STA nEnemyIndex ; int nEnemyIndex = nEnemyIndexBegin;
! M$ Q* ]# O: h6 D' }3 w! N( ? - LDX #$00 # x2 R# b N, e; T9 {# t
- Bullet_Track_Check: ;for (int i = 0; i < _countof(nBullet); i++)* c$ O" |3 n6 i9 y
- LDA Bullet_State,X
0 [: ?- V1 x7 Q: S( l0 f+ t/ j/ H( S - BEQ Bullet_Track_Check_End ;if (0 == nBullet[i]) continue;1 O9 G( H# u, @/ Y# w4 d, r+ b
- STX Loop_Index_I
; d6 Z2 X" P& O -
( I: D9 ?/ I4 ~, h2 \& f; U" E - JSR Bullet_Track_Enemy
& S$ v( c! W' U1 Y& g% L* e - JSR Bullet_Tract_Direction
- e7 q$ A" S+ ~ [* A; N - ) e7 i. v5 J9 x" H% x9 l: ~* X. ]( r
- ;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
0 c% ]% P- m k0 R. l - ;if (nEnemyIndex > nEnemyIndexEnd) nEnemyIndex = nEnemyIndexBegin;
. @5 I) L2 n: G X, n( P - LDA nEnemyIndex8 ~6 b8 K& O. ^* J/ N* F6 ~% c
- CMP Enemy_Index_End
1 E6 q' k" I5 v5 _+ \. T1 K - BEQ Bullet_Track_Check_Continue% y. `- g$ L* V( ?& ~" y8 v
- BCC Bullet_Track_Check_Continue
# n4 i# k: A9 U6 B) G4 C1 F9 b - LDA Enemy_Index_Begin
0 p, a1 y H( ^$ H - STA nEnemyIndex r& J9 E# S+ k
- ' u9 u, L7 }, q! Q1 b6 R. I( f" p: f' X
- Bullet_Track_Check_Continue:
) e( v% v. h" Z; a2 \0 y( m$ J - LDX Loop_Index_I- h( u9 W R: r; N
- Bullet_Track_Check_End:
- n( c6 R# ]6 P - INX8 B* E2 K: \+ X8 l! b. M6 O+ Z& d
- CPX #$10
5 k& n( u6 b5 z - BCC Bullet_Track_Check
' L( ?9 ]- r4 o, e- g) \* `; y - Bullet_Track_End:3 P/ R$ ?4 ]9 I$ S
- RTS4 s% K$ _2 j* ^) |6 { i# W: G
-
9 E$ y4 [) l- g2 F; m3 h - ;给敌人分配子弹# [1 o2 w& {4 r M4 ]2 f
- Bullet_Track_Enemy:$ L5 L" a# }3 h
- LDX nEnemyIndex ; for (int j = nEnemyIndex; j <= nEnemyIndexEnd; j++)0 y+ L4 R; S4 P/ s1 {( Z4 D
- Bullet_Track_Enemy_Check:2 _; T" K7 Q2 Q8 i9 A' I
- STX Loop_Index_J& y2 z4 m4 g& l, Y# [: k
-
/ t# ^/ q. a" T% _ - ;if (0 != nEnemy[j] && -1 == nTrack[i]): j# K$ [, l+ S
- LDA Enemy_State,X
& w% A# }, Y, C. h @* o - BEQ Bullet_Track_Enemy_Check_Continue9 B+ V8 _; c- S- n- M. u
- LDA Enemy_Blood,X) i# g- M) Y& D1 u1 h: l2 Q$ @
- BMI Bullet_Track_Enemy_Check_Continue( f. u0 N( P/ }2 y. C
-
1 A: P9 i4 z& ^6 n1 u+ \ - LDX Loop_Index_I
I7 b" e4 j3 u$ F0 G4 {$ { - LDA Track_Enemy_Index,X: `( {4 y- J' r* U7 b# G0 i: _, P5 Y5 G
- CMP #$FF
8 s; f( }- M) i: o) k9 d - BEQ Bullet_Track_Enemy_Init9 w- ]6 Q \0 C
- ( L$ R+ v1 e' W8 Y- n
- Bullet_Track_Enemy_Init:
! ^2 R4 W m2 H7 \ - LDA Loop_Index_J
+ m, B' N' B: A9 Y+ Q2 ? - STA Track_Enemy_Index,X ;nTrack[i] = j;/ u) A4 B5 {- }, Z9 B% h* j7 A
-
( M x0 B8 g' R1 G: ^* y+ w. c - STA nEnemyIndex% z5 {% f9 B: {9 m0 T3 f
- INC nEnemyIndex ;nEnemyIndex = j + 1;
( }; N2 e8 Y1 x, } - RTS ;break;" T' R/ C- n& n Q2 ]
* Z( g0 d5 ]: V1 J9 Y5 i) h- Bullet_Track_Enemy_Check_Continue:
: Y" |, o" h/ [$ c- d2 D6 @ - LDX Loop_Index_J1 W4 f8 G& b2 v/ X; E
- INX ;j++5 v6 O B0 Y4 [! h4 f
- CPX Enemy_Index_End
* ~$ I" Q! w7 B# f& w/ u - BEQ Bullet_Track_Enemy_Check# q% k2 u3 ]1 ^4 m* |% h0 e
- BCC Bullet_Track_Enemy_Check8 d+ w, V; m& e& A9 D
- Bullet_Track_Enemy_End:
, P& P) ?: z$ f1 J9 h# M - RTS6 }+ R' D: w" C5 r. f6 ^% e
- % ~. [: f* H. s
- Track_Enemy:3 w; j3 r5 i _. X2 D
- LDX #$0F
; p; ^% S4 c* R: l" d, v - Track_Enemy_Begin:$ [6 j; x1 t2 ]2 t8 R4 h/ y) E2 ^' e
- LDA Bullet_Icon,X
; q: O" x/ `3 B# ] - BEQ Track_Enemy_Continue# U1 J' S* `" m( c' ?: A
- LDA Bullet_State,X
, o6 m+ c' k/ s# w - CMP #$01
# j9 D) J: [- ^3 I - BNE Track_Enemy_Continue
$ Z& ?: @7 q' m0 J0 x: V - 6 [! ^% `/ ^, B) J, d# X+ [
- JSR Track_Enemy_Process
& T4 v# T; `6 E3 Q& Q4 t, h -
. c" M7 i* F) K; P) U# g5 N - Track_Enemy_Continue:
: X7 Y1 |" U$ {! K" ]; x - DEX; [! K x& b3 `, o |, L
- BPL Track_Enemy_Begin+ |7 P6 L# B. f' C G
- RTS
8 E9 f# h1 R. b( L$ `8 q
! m& ?# Z; Q% V" m2 S1 ~/ F- ;普通关卡0 {& [5 Y7 N1 I( W3 _2 M9 H
- Track_Enemy_Process:3 T- k9 M8 p7 V! Q G
- LDA Track_Enemy_Index,X# G8 a; V& F% K3 j. y; R/ E: u# y8 t
- CMP Enemy_Index
& c$ L; f. F4 [+ {+ Y# f - BNE Track_Enemy_End& Q- A' [0 o/ c" f. O2 @3 T
- LDY Enemy_Index/ _0 s3 M" ?" n C, K- q
- JSR Track_Enemy_Y
1 |! a9 Q" v# D& U/ p1 v* l3 r! A - LDY Enemy_Index
) t6 ~) A% A$ k. G a - JSR Track_Enemy_X
9 ?6 M( [) Z7 h9 K. ~9 T: @ - Track_Enemy_End:
7 u3 `! H1 a7 I7 m; F9 H' Y - RTS; K& ?2 b( U- j/ F0 t
- & u8 ?% R2 c5 W% t; A. U; |
- Track_Enemy_Y:1 |6 Y- v- O. r; j
- SEC
$ m4 A: c+ h, ?* W/ X; `$ ]4 Y - LDA Bullet_Y_Pos,X
, I2 v) \ t0 X) Q1 X4 R - SBC Enemy_Y_Pos,Y
0 ?2 Q% P, O" D% U7 j" [* ^ - BEQ Track_Enemy_Y_Equal* Z' M4 i( W3 ^! `3 ~% R6 C
- BCS Track_Enemy_Y_Greater
4 z. H6 r# H9 y; g/ T4 m. A - 5 ~2 [& }3 G+ h2 D% P( D
- Track_Enemy_Y_Less: ;子弹Y < 敌人Y
) H. H* k0 }; x/ R9 D, R - CMP #$FC! s! I ]% z$ F, ]' c
- BCC L1_1
( o: |" Q" ^0 b* s, h) {( D" p4 X - CMP #$FE
0 _) v2 T" z, N, l - BCC L1_2: p0 ^* y" |) D
- LDA #$00
- L# H5 A4 ~4 U - STA Bullet_Y_Speed,X
" C0 Z. [$ y% ]2 ~1 ^ - RTS, E+ Z* z/ o3 v8 M' Q; N8 _ N2 W
- L1_1:
8 Q) {8 ?6 L- }* I; K0 [' ~ - LDA Bullet_Type,X
& h2 Y9 ~1 O# Y( t% N - AND #$0F
5 D6 w' S) m0 y5 Z! l: C& U. ] - TAY( `$ R5 n: x3 Y; j
- LDA Bullet_Speed_Data,Y$ J. p2 p O0 p) k- k
- STA Bullet_Y_Speed,X! J* ]; w5 E) Q* ~
- RTS
; } d1 Q* l/ u8 U0 B$ E
; O8 Y7 s8 d8 ]# |2 }6 e* i: J+ p2 f- L1_2:
w! \6 I7 W" K" L3 }6 A ] - STA Data_buffer9 j5 N: h8 Y$ J) r. O
- LDA #$00
3 c: f0 D0 |% B - STA Data_buffer# A7 \. s, e& n9 H
- LSR$ x l) q& q1 Z" R5 _) R7 e
- STA Bullet_Y_Speed,X# @! g6 E0 R: J$ p3 n1 d
- RTS
3 _4 ~1 w# g) y
7 s/ ?( m6 a/ g# \! S- Track_Enemy_Y_Greater: ;子弹Y > 敌人Y
+ L( @, [' L( H/ v6 [- ~ - CMP #$04; K2 Y' ]/ O) ^! y+ }/ E
- BCS L2_1
# K$ K5 [8 x( ?; M7 I2 h5 ^ - CMP #$04
/ m; O' o# a. @" z - BCS L2_2
% @2 t# S5 a; k3 U8 n7 l, B - LDA #$000 M0 I3 Q. b3 O* F$ `4 Y, b
- STA Bullet_Y_Speed,X
3 G& M/ g/ W3 M& W: ^/ w( Z8 l" ^$ A - RTS: m. z1 u: Z" h5 d
- 6 K: t$ i: n4 |
- L2_1:9 J& U" H+ m9 M4 @0 d) Y
- LDA Bullet_Type,X
o- a) C0 B, k/ e' @ - AND #$0F
8 h, p7 \& s' G) ` - TAY
+ {9 t6 B$ J! F - LDA #$00
% X! t$ B+ B1 \! H1 } - SBC Bullet_Speed_Data,Y
# P4 g6 e2 {. w+ L - STA Bullet_Y_Speed,X
7 V$ R( A3 L/ g @' W - RTS
- q" n- [) y4 g -
- r' }& F! F+ n( P) G - L2_2:
6 A, u) w) A! t | - LSR) n# B. F; _7 a" T
- STA Data_buffer
5 ?+ I; r$ b& O! S, y3 E - LDA #$006 g! T2 p$ O2 T. W$ g# U
- SBC Data_buffer. g3 ~- V# I% M3 W! @& z2 \' N3 J* l
- STA Bullet_Y_Speed,X3 {7 d3 h {! Q
- RTS
- A# l2 S. `& n4 D9 M$ N -
: i+ N0 k0 N9 }# I: b8 L - Track_Enemy_Y_Equal: ;子弹Y == 敌人Y
' o% G, f5 [. l9 [ - LDA #$00
" r. g/ M7 O9 u a: C) k; z0 w - STA Bullet_Y_Speed,X) o l6 y' o+ }
- RTS2 s9 S, D% F3 z1 V/ v, z6 y" C
- / w. l$ }( W) O6 o' j0 i7 s: |* ? D
- Track_Enemy_X:, }$ U4 N) Q$ H- K
- SEC; p* I! J; G. a% S
- LDA Bullet_X_Pos,X# q! E( k9 _! m) E- O* _$ g) q
- SBC Enemy_X_Pos,Y
. a# h7 W: B: G1 ?" b$ i* w - BEQ Track_Enemy_X_Equal ;子弹X == 敌人X3 a, M( e+ D5 Y% A; H1 p
- BCS Track_Enemy_X_Greater ;子弹在敌人下方
( ^3 E- t8 D9 X - % f" ?8 }) X( i5 \
- Track_Enemy_X_Less: ;子弹X < 敌人X+ B7 H/ J7 E3 F7 { S
- CMP #$FC; o2 ~" `/ ]% m, y) ^/ ^
- BCC L3_1
* p* f( j2 X" ^9 v; O* ^ - CMP #$FE
+ x& `5 J7 `% [3 y/ n/ v; M - BCC L3_2 }; A1 z7 |" C' s8 Z& t1 J
- LDA #$00' ?( b5 L3 j* @" p# G: I
- STA Bullet_X_Speed,X
2 E t. c) v: ~8 x$ h! Z2 S0 e - RTS
+ u6 `3 o) O( n& A7 U) Y% e2 V - L3_1:
7 s( d& V% `2 s7 G7 C - LDA Bullet_Type,X9 W2 O2 u6 O: t3 f ?! l
- AND #$0F2 Y. I: s! F& h5 g4 C
- TAY
3 P" A" P* e! B - LDA Bullet_Speed_Data,Y) p) s$ q6 F4 R k$ d& v5 R& A A: W
- STA Bullet_X_Speed,X! ~8 Q6 C3 j% |- r1 C5 j4 T- u
- RTS
, K. F I6 i: T' I - L3_2:
) {# A O3 {. f1 A - STA Data_buffer: k$ v5 H% a! L7 L) D0 q% e
- LDA #$000 r2 d: T# e. J( q+ N- i' [% o
- STA Data_buffer
9 S/ a+ m" I7 C b+ t% Y% O: Z( m- u - LSR$ o) d& R" o @, u1 Y, |( P1 h9 r
- STA Bullet_X_Speed,X, h* I7 R* K( t7 \
- RTS1 R8 g) f7 {% G: Q4 {; U$ _8 G m# G
- $ g6 t: j* s; o1 B# X- k3 r
- Track_Enemy_X_Greater: ;子弹X > 敌人X- u% ]/ L" ]% e3 R
- CMP #$040 T* d5 K4 `% l+ Q
- BCS L4_1
, h* X6 ^% K$ ^/ k( ` - CMP #$02
9 W( Q. S! \) ^/ Z0 s7 o - BCS L4_2% t- b- H9 b8 M8 E
- LDA #$00
( e5 o, s7 K1 z! ^+ N+ ^ H - STA Bullet_X_Speed,X$ ~& z5 e) w2 u% U y: [) Y
- RTS
; R8 C1 w4 W" E% { P ?) E5 d -
8 ^1 K. M6 O: E/ m2 k - L4_1:
1 W: [ F' c- ~! c" @9 p - LDA Bullet_Type,X
# ]* K$ Z( r+ A& h" t+ h - AND #$0F7 m; |! ?. k- J h4 C, ^# b
- TAY# f% Z( H; s) S H
- LDA #$00' k7 V9 E* Q( [3 t) s2 S$ z( Y
- SBC Bullet_Speed_Data,Y
' }9 k7 a" u; r( M* W: H d, b - STA Bullet_X_Speed,X0 f0 E* Q+ v) b
- RTS( Q2 q8 ~! ~8 ^; _3 d
- L4_2: : m7 B- i- z# Z- V8 g5 M$ X
- LSR Z3 b8 V9 ^- H1 `
- STA Data_buffer
% a- d9 d5 K' _/ i4 w$ q - LDA #$00
2 u! u4 Z. |4 C$ f - SBC Data_buffer9 j1 c; `0 o. P
- STA Bullet_X_Speed,X
. `% C) u* S, Y/ f - RTS
/ E; h" T( K0 ^! ^/ f1 C. O - 8 A ]/ H. X [$ O; `9 R8 I
- Track_Enemy_X_Equal: ;子弹X == 敌人X- y- q% m9 U& [3 z; r$ H
- LDA #$00
: w$ |9 G; \6 n+ n5 g - STA Bullet_X_Speed,X
' L) y1 k- u( l- X" T) X - RTS- ~* I3 a4 Z! H9 s Q/ G" d+ c
-
, f/ W6 s# t( U. L - Bullet_Speed_Data:1 k1 D4 k( G7 f% l6 q7 }' @
- .DB $00,$03,$03,$02,$03,$03$ C; Z% O! o+ C- E
- ; t. } D q: y7 r2 B
- ;2, 4关/ k+ K8 f+ C: m' Z" a1 I
- Track_Enemy_Ex:
5 n o! n% N- S& g$ w - LDX #$0F
3 g+ m6 }/ ]0 M3 l6 U- G: @ - Track_Enemy_Ex_Begin:
; O8 }! t1 H7 O/ m s
4 I! k, D8 R/ Q' G) U+ g' L" ]. X- LDA Bullet_State,X
/ u Y3 p; _6 Y! c# ~7 f% U - CMP #$01$ E! w* _5 ?+ g" f+ j) L
- BNE Track_Enemy_Ex_Continue6 a/ t0 G% g, R' P/ {" F6 \3 d+ w' I8 {! A
- & u0 o7 N: _) H" J/ v7 {
- LDA Track_Enemy_Index,X2 u) |. e8 ], L) N) `
- CMP Enemy_Index4 ^! \- S( S) D G# a6 j2 ]
- BNE Track_Enemy_Ex_Continue ;匹配追踪目标
4 ^& ~, [' j. b h Z5 R0 g5 D - " J8 Z1 T8 B: c) m. i( x3 t& T
- LDY Enemy_Index
/ O: K4 G1 T6 s; K - JSR Track_Enemy_Ex_X8 e( J% [* Y( l4 w F' N1 o' l% g
-
5 ~1 a! j( Q c3 p" W& G - Track_Enemy_Ex_Continue:
8 J+ B9 R* w6 _: w5 F" ^: I7 I1 ` - DEX! ~" M6 t2 \0 j; e/ z% C$ ]9 n
- BPL Track_Enemy_Ex_Begin
; |6 X7 R. H i - Track_Enemy_Ex_End:
5 t& x$ w/ X* q0 l/ q& t: B - RTS
8 I$ J0 ^4 m- C7 a% [# ?8 \ - * ?) ?1 W+ h: n% K
- Track_Enemy_Ex_X:2 v) [( D( g" i5 x$ E
- ;LDA Bullet_Z_Pos,X$ u4 e: x2 T! o$ M
- ;CMP #$04
$ _: U! q' v6 U6 X \/ g - ;BCC Track_Enemy_Ex_X_End1 I; l+ s# h }! i
- SEC
9 B, Q5 D4 i* \7 C - LDA Bullet_X_Pos,X) x& n9 _# U# ]
- SBC Enemy_X_Pos,Y
0 d- u% m' \. S4 l - BCS Track_Enemy_Ex_X_Greater1 ]! d- J2 C5 G* D0 L
- ) {3 g( C1 P) L. p$ ^8 P
- Track_Enemy_Ex_X_Less: ;子弹X < 敌人X6 d$ E7 M% h# @/ c3 g
- CMP #$FD0 T) k1 Z3 D1 C+ k& M0 V5 S
- BCS Track_Enemy_Ex_X_Less_End0 {0 z1 e# E1 X+ H' a: b
- LDA $6020,X
6 e$ I4 s+ G2 O5 ` - CMP #$2A) Q- I- n6 h+ S6 r
- BEQ Track_Enemy_Ex_X_Less_L1
7 _. E! y, f8 q' M - LDA Bullet_Z_Pos,X3 N. ~; {! o/ B7 b0 ~1 t x6 \ @0 e+ ?
- LSR" t" Q1 }' {' S# p, W9 q* A" V
- TAY
7 o0 o% V' p- X! K% ? - LDA Bullet_Speed_Data_Ex_R,Y/ Z) p/ R, m0 k( B4 `
- STA Bullet_X_Speed,X. @7 [3 c$ _! p7 y0 {9 H
- RTS; }1 P" A+ z0 R
- Track_Enemy_Ex_X_Less_L1:2 C+ A. W4 E' y' V0 w9 y8 g
- ! y& L9 Q" D8 L- Q& F
- LDA Bullet_Z_Pos,X
0 _3 S, S3 \2 L - LSR, H& @" F0 e8 B" [$ X
- LSR( H8 W- A% m) u$ v
- TAY! E( ?0 e- o2 t: A" g; s
- LDA Bullet_Speed_Data_Ex,Y
9 M6 G* M5 {; S/ h - STA Bullet_X_Speed,X* q! X. b0 ^+ \" G+ v5 \
- RTS. ~0 i" I' G+ L: z; |. j q( v
- * n" F" n A" j6 ^. b* d: E% y
- Track_Enemy_Ex_X_Less_End:
" P: Y. r3 k4 P - RTS& N4 y' N5 W, ^' Q' B) J$ T% J
; E. F3 t' W: f. v- Track_Enemy_Ex_X_Greater: ;子弹X > 敌人X2 }$ N3 m6 ^% P& @% X# r
- CMP #$03$ B! X p F- _) T/ X6 j6 K, w
- BCC Track_Enemy_Ex_X_End
3 B* G$ g* X9 R - LDA $6020,X0 ]! I, w3 i$ `) s. t+ u6 B
- CMP #$2A
2 \ N h8 r& _1 q7 }9 }) ? - BEQ Track_Enemy_Ex_X_Greater_L1' ?! N& u& n+ J: O) E% u6 ? l
- LDA Bullet_Z_Pos,X
) P1 I/ k- h( y2 t& v, p: ?# L - LSR
0 l- ? G+ n# B# P+ x/ V5 c - TAY
1 t/ E6 Z2 w; D - LDA #$00
1 J7 d h2 a1 s/ O! K7 I - SEC! {5 @% v! r& J$ S: k
- SBC Bullet_Speed_Data_Ex_R,Y8 J! T4 h, L2 _8 j8 N: l g
- STA Bullet_X_Speed,X
# J5 |- a& I7 e6 Y - RTS
! r; D1 i3 r. I z4 ~" b - 3 n' w; T3 a0 O% _9 [0 B, o
- Track_Enemy_Ex_X_Greater_L1
3 C" c8 \/ K% q - LDA Bullet_Z_Pos,X4 U8 u/ q8 w9 s: w/ Q
- LSR
+ w- t" C+ j# t4 J, |% F$ o - LSR
+ B, {; \) K* p7 b, h - TAY
9 |. a7 o$ l& n- ^ - LDA #$00
7 D U( q6 B/ u& ]8 U: x - SEC
/ b' W0 B. t% q- ]+ l - SBC Bullet_Speed_Data_Ex,Y
4 @* c! s8 `% ^ Q8 o Y+ g* z q - STA Bullet_X_Speed,X# R5 B+ `( Q: D( @0 P
- RTS
' n# M. G Q& M5 M - ( I8 x1 N% Q0 c& a
- Track_Enemy_Ex_X_End:
0 n: ^, h: o- ] L g; H' T6 ~& I - RTS; ?) s T9 n0 _, b% _- U$ u
- . d ^6 ^' s0 s: G; ^8 I, l- T7 G' @
- ;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)
( B+ w* Y% ]' a - ;Bullet_Direction = $0378 ;L子弹方向 40左下 C0左上 80右上! Y6 s, A N4 g& i/ L* N% k' m1 B: D
- Bullet_Tract_Direction:% @' b/ I1 ~/ ]+ Y( G0 Y
- LDA Bullet_Icon,X0 t. }) c* g! U- R- W4 a
- CMP #$23
9 K$ Q, M% ?. |0 a: D% t3 i - BCC Bullet_Tract_Direction_End4 K0 ]. ?4 |8 I9 y# g9 x' G+ m; z
- 4 D; L1 A* y- T$ g; E
- ; X != 0, ]! g: S4 z( n( G7 k, V* _! V2 w
- LDA Bullet_X_Speed,X
9 L& B( R; S: g& n - BEQ Bullet_Direction_V' b; {6 P$ _: Z
- n; \# K! @+ }1 @
- LDA Bullet_Y_Speed,X
/ `' B+ D1 V, U2 {! r$ j- h* v$ Q - BEQ Bullet_Direction_H
( c% l) q& O, f( j& q -
3 `. R1 d. y1 _/ r - LDA Bullet_X_Speed,X
g+ b( @6 Y! U N3 C! Q1 i - BPL Bullet_Tract_Direction_Right
+ o' ~2 p8 S. O+ S - Bullet_Tract_Direction_Left:
! X% L, R; k8 u, X" Y - LDA Bullet_Y_Speed,X
5 L" _0 [) O( _ - BMI Bullet_Direction_Left_Top& s }& P- I( t4 e
- BPL Bullet_Direction_Left_Down
5 j/ v2 b. p; ` C - Bullet_Tract_Direction_Right:1 `$ ^9 \: @/ E7 J4 s
- LDA Bullet_Y_Speed,X
: U( Z, k: t6 P6 f' g2 Z - BMI Bullet_Direction_Right_Top7 Q" Z4 r" c3 K4 v# F* ?1 L7 d+ G5 r' Y
- BPL Bullet_Direction_Right_Down" f& _! \ x* q$ }2 @1 J* M
- Bullet_Tract_Direction_End:5 M- \% ]8 }" p+ _
- RTS6 g# P3 c" q. J
4 i# n, t, @! V$ @9 H& t& X9 \- Bullet_Direction_Left_Top:9 N. S: y6 j' y/ M: s
- LDA #$251 X% J A. W/ j2 p
- STA Bullet_Icon,X5 _. {; z. L9 ?* y4 ?( ~2 Q
- LDA #$C0
& d) G3 V0 @1 q+ }* k5 b - STA Bullet_Direction,X
" V- f7 j& r6 P% F1 j9 k4 @- A - RTS
0 Y: n% i+ d2 J* L
6 @% {& W% S% N- Bullet_Direction_Left_Down:) K% i" [+ U) {1 C9 @& z* `
- LDA #$25
& E X2 P; _8 ]0 Y: S' N& y - STA Bullet_Icon,X
: l/ B" |( Q3 H) g. [) ? - LDA #$40
) {7 {/ }4 T+ M% C5 V& ^# d/ u: G) ^3 e - STA Bullet_Direction,X; a9 A [. @8 ~
- RTS
7 L2 o3 ?) ]( k* N% k- I: B1 m - ! j; z B6 f0 F' x$ h
- Bullet_Direction_Right_Top:9 Y& y3 \7 l3 ?
- LDA #$25
0 S' x0 L8 y$ Z: O* ^% G - STA Bullet_Icon,X
6 L8 J2 L4 o6 I& q! u9 }' H - LDA #$800 e' t0 J5 h( f8 |3 J
- STA Bullet_Direction,X
( f' m7 T( x, a) q: L1 E8 t3 P - RTS
- u. |3 ~+ Z& i( t5 o0 t9 ]
7 C+ n: Z8 M/ r- \* l- Bullet_Direction_Right_Down:
, ]! \9 G [/ @7 J% i! A9 y - LDA #$25. Y3 M1 @1 K" t
- STA Bullet_Icon,X( U& Y( ^2 R9 A( I2 K* G
- LDA #$001 M3 ]/ `0 i# B$ V% O% j+ X" y
- STA Bullet_Direction,X
5 R7 o& y5 m& Z1 I$ s2 |9 ^; @ - RTS
) `) W4 b/ b, L% P6 ]% f2 o
9 y' I2 _7 t: @) O& z" ?+ Q; l- Bullet_Direction_H:7 I* s0 w Q1 x C* k9 j; x
- LDA #$24) e7 A+ p' t# J# @' d' y. S
- STA Bullet_Icon,X% f8 Q% r6 Y# i3 N) E
- LDA #$00 P( t' R5 g& Y+ n9 N, U8 \% P
- STA Bullet_Direction,X
z1 B! ]. Q# U - RTS( `9 b* j# C" P# x) o/ p2 i
2 N; {, _" p2 R% l8 ?- Bullet_Direction_V:$ r9 U7 x: n5 A! K' P1 x: f
- LDA #$23* P, {, G' P; i0 c- c( z" [
- STA Bullet_Icon,X) A% ?% a7 T7 y0 F7 k3 A/ L7 ^
- LDA #$00
( O, ~- P$ k# }. l8 F/ N6 t - STA Bullet_Direction,X* e9 h, Y- g8 F) G" u5 z
- RTS% T( I: y0 D; n4 a8 g9 M
- . n* r3 G, ^% F9 r9 R
- Bullet_Speed_Data_Ex:6 a u( X! i; Z' e+ a
- .DB $01,$01,$02,$02,$02,$03,$03,$04,$04,$047 W8 O c" ?' N/ I: D' H
-
7 ]6 D% D6 R) Z - Bullet_Speed_Data_Ex_R:
! p' Y: |6 E/ Q - .DB $02,$02,$03,$03,$04,$05,$06,$07,$08,$08
! `% m: t; d$ _& k7 s# H. T9 Z) X -
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