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[FC][魂斗罗][J][追踪弹]
# I( v9 c6 h: k' Z! m% K% n
) ]% e* ?" @/ Q- S# C" Y/ V' h2 G时间:2023.04.30* o9 p$ [% [ @
作者:FlameCyclone
8 F1 e% `0 g# ^! n" r内容:
4 j/ J4 O; a- W( j z# n+ | 1. 所有子弹追踪敌人
% }; l6 Y6 \! x+ y. d 2. 选择键切换武器9 M2 |4 O" P- N7 D- ~% F0 \8 V2 X
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' E3 M4 X' S& Y9 Q% Z9 L3 [
U7 N+ Z3 c* c! x
flamecyclone.ys168.com( _) f) S! L* k1 {

q8 c4 B8 J7 R5 K6 w1 Y$ ?, r- Bullet_State = $0438 ;子弹状态 0:不存在 1:存在 2:销毁
4 @7 V3 u5 e7 V q - Bullet_Type = $0388 ;子弹类型 0: 无 1:普通 2:M 3:F 4:S 5:L
" ]' ?0 y& D6 | - Bullet_Icon = $0368 ;子弹Icon 普通:1E M:1F F:22 S:1F-21 L:24(横向)23(纵向)25(右下)
, F$ ?- y* o5 t( d' c7 q
$ X& X: C3 Z1 A6 {4 v2 _) w" s$ F- ;Bullet_Icon = $0368 ;子弹Icon 普通:1E M:1F F:22 S:1F-21 L:23(纵向)24(横向)25(右下)* b$ m: ?2 b8 j$ |5 f; k
- Bullet_Direction = $0378 ;L子弹方向 40左下 C0左上 80右上
* n p/ v/ J! c' w4 [) j: ~: E - ' \' J! Y' ]; }8 b& u
- Track_Enemy_Index = $6000- \$ [, N7 ~! O6 g2 y8 [4 h" ?$ |
- Enemy_Index_Begin = $6010
0 |) n1 E( U& r% l$ c# f- H - Enemy_Index_End = $6011
: o( c- p2 d7 k7 O3 @0 W - ' T6 j# O" s+ K: t9 [* E
- Loop_Index_I = $6012
1 |1 e- |1 ]& [3 i5 O. \ - Loop_Index_J = $6013
' R3 F3 Y, E/ n - nEnemyIndex = $6014
" t2 A' k7 q0 W4 z - Data_buffer = $6015) r3 U5 D/ J& } S
1 h( B" `( \1 j5 V- Bullet_Y_Pos = $03B8 ;子弹垂直坐标
T- j0 Z" N2 @- v - Bullet_X_Pos = $03C8 ;子弹水平坐标
4 N- e- W$ k+ v - Bullet_Y_Speed = $03F8 ;子弹垂直速度
% |% j2 k" n0 O" Z. I, o - Bullet_X_Speed = $0408 ;子弹水平速度( V7 u) [8 M4 s: ^% _
- Bullet_Z_Pos = $0418 ;子弹Z坐标
2 b& [2 t2 G8 o: Z7 [ - Bullet_Owner = $0448 ;子弹所有者 0: 1P 2: 2P+ }+ l: ~; N# O% S
5 K5 \4 b+ Z9 J9 s3 l- 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
4 B9 H Z" p. a' x( l - Enemy_Blood = $0598 ;敌人血量
% O/ h7 r0 U0 _) b6 R( I - Enemy_Type_Addr = $0528 ;敌人类型& S; y2 P! _! A' U! |
- Enemy_Blood_Addr = $0578 ;敌人血量
$ X/ L) l) n- S+ Z* p6 | - Enemy_Y_Pos = $0324 ;敌人垂直坐标
; }9 j5 Z! r* d - Enemy_X_Pos = $033E ;敌人水平坐标5 p4 ~, O4 p: c. j( m8 G# M: H! a
- Enemy_Y_Speed = $04E8 ;敌人垂直速度
' T" P6 r3 b& Y - Bullet_Alive_State = $04B8 ;敌人状态 5:弹起爆炸 0:不存在 6:下落 7:原地爆炸) e! u7 C: V4 q. X! N2 i U
+ Z+ c) D/ n' r1 Q$ p1 x& Y& U- Enemy_Index = $83 ;7 }% v7 g( n) t8 u; W' V
- Time_Count = $1A. D T+ i8 l b9 N& t
- Track_Bullet_Speed = $07 ;分配子弹追踪敌人频率6 ] J3 ~3 e$ Y% z8 n
- Track_Enemy_Speed = $03 ;子弹变向追踪敌人频率
* ?/ `* \* R$ C0 R: B2 l7 Q4 H
- A4 \8 N+ W/ Y7 E, S' y
1 A' j1 X. ^: z# N- .ORG $61004 |7 a8 B- K% @6 i' i. N
- Process_Begin:
6 I% K: j8 L9 d n, q! d - JSR Enemy_Check
N& `! A, X) E( J$ O" t6 C - JSR Track_Enemy_Check& @& J) a }# ^2 l) N _
- Process_End:$ e1 w) H, q/ j( x+ C* ]; ^7 U7 @
- JMP $E54F
0 G2 d k4 j: K1 @6 j, d1 P
& R+ s6 u7 B- N4 v& u+ ~; F- Enemy_Check:/ Y6 g1 C, h2 W m) b3 P& n2 W9 |. a
- LDA Time_Count5 f& X' @5 A6 ]0 m2 r2 g
- AND #Track_Bullet_Speed
9 D( j; q+ S6 [4 Z - CMP #Track_Bullet_Speed; U1 b5 L$ ^# |
- BNE Enemy_Check_End
' {- x$ u( i. f* A( `# j - LDX #$0F
0 u1 r8 P7 C! E Q h8 Q) Z$ ?, X0 X - Enemy_Check_Begin:
5 f, J' Q& D0 o6 R' f - LDA Enemy_State,X
1 `( H" A8 @1 G0 t - BEQ Enemy_Check_Continue
0 ?6 C5 r. M- g; A7 D - STX Enemy_Index
2 h" h4 G& j, F c i3 f - JSR Find_Begin_Enemy; @( x" z) q: B. V5 a9 a, ]1 s4 u
- JSR Find_End_Enemy
: W$ ]1 h) k; O4 V - JSR Bullet_Track
: j& F" w/ ~) O0 c/ q7 ]3 K - & i# N- z8 X1 @
- LDX Enemy_Index# i: n; R& D& L
- Enemy_Check_Continue:
! l9 E8 o9 ?' K! P t( v$ l3 E9 ~ - DEX0 v; V& t2 u; G9 u8 x( U$ E/ c
- BPL Enemy_Check_Begin
: Y9 [0 a1 A% @ - Enemy_Check_End:
1 e. ]# f+ ^/ H+ g T - RTS, T. u4 m2 W, l( h1 |
-
' c1 ~* A$ F- V4 D. O. } - Track_Enemy_Check:
! f: ?" B" J/ y - LDA Time_Count
1 M( L5 o, W5 E& L - AND #Track_Enemy_Speed
# }+ F; \) ?/ z" Z - CMP #Track_Enemy_Speed
' }$ Z a9 f. f/ L& t* _( G - BNE Track_Enemy_Check_End. l( ~: q' K0 O) R
- LDX #$0F
, M1 u& G$ K9 r2 B8 ^ - Track_Enemy_Check_Begin:1 q% D: ]2 g' E$ Y
- LDA Enemy_State,X
: y2 }8 d b* |4 d - BEQ Track_Enemy_Check_Continue$ h" g8 H! r. y+ d
- STX Enemy_Index& ]- |) g2 y2 A% q6 l
-
7 \' P8 ]3 j2 A - LDA $404 @$ o. P6 B8 {1 i {4 t/ t" [
- LSR
. C' X! g* z0 X8 P) o9 a6 j$ ~7 q - BCC Track_Enemy_Check_Begin_L1( n: ?7 @: C2 H7 G5 H( I& k! V
- . p; E* k/ B, g6 G/ _
- JSR Track_Enemy_Ex ;2, 4
5 n* ]& R3 o( r, T g, d1 ] - LDA #$00) U1 h5 W4 \9 h# b1 X
- BEQ Track_Enemy_Check_Begin_L21 y: b" c( {$ b
-
# E; M% U2 @# [- p% a2 ^* Z' { Y% m1 R - Track_Enemy_Check_Begin_L1:* h6 g6 i- y2 W% _8 a/ w# D" `3 Q! B
-
5 t5 R0 @3 z7 O6 H1 b* V* X% a" o - JSR Track_Enemy7 ]2 Y6 w' n6 p
- 2 c+ e6 s7 O: `+ g
- Track_Enemy_Check_Begin_L2:
; A1 L8 v7 C7 L) F - : E! K4 V8 c" [" v8 ^& {: m9 k8 C
- LDX Enemy_Index
9 S' i& f( D; a, R$ f0 l7 W - Track_Enemy_Check_Continue:
- h2 ?4 z( ] K+ M) I% R% E* [ - DEX" d" X* ^& V: X# g. g; N
- BPL Track_Enemy_Check_Begin
3 }+ G& |: J, ~1 V% Z - Track_Enemy_Check_End:
1 B& ~. ~( `4 s5 N - RTS
+ h" a3 J" `8 j4 K5 V
- j4 ]& D/ |; @7 }2 n- 7 l2 p2 G: ], ^5 w
- ;查找第一个敌人
0 r8 I$ |8 O2 x4 a6 Z# ? - Find_Begin_Enemy:+ X$ y% u8 g! C9 |$ K1 b
- LDX #$00
* J; K* I8 o+ t- I; g - Find_Begin_Enemy_Check:
+ N$ K) b8 A S7 Y1 g6 S - LDA Enemy_State,X: }. D, V: T" M! K* o
- BEQ Find_Begin_Enemy_Check_Continue
6 Q2 R* b7 |: O7 `6 f - LDA Enemy_Blood,X \( _) y1 D; @' G
- BMI Find_Begin_Enemy_Check_Continue$ d$ ]5 C& y! N0 b5 l
- BNE Find_Begin_Enemy_End' d$ K- _% \/ q: i, L5 q
- 7 x4 o2 j, s+ V3 y2 Z
- Find_Begin_Enemy_Check_Continue:
- j& m: |- G- L - INX& f4 h' Q. Y; z
- CPX #$10* R9 q( r$ _5 ~1 ~: \, I
- BCC Find_Begin_Enemy_Check* }% T/ Y P u7 N
- Find_Begin_Enemy_End:
3 ^& D. b6 n. }" R! t2 L - STX Enemy_Index_Begin# V$ n& ~8 ?$ W# }, Z- Q4 N1 x
- RTS
! R3 t! H# X, \# g! a. {/ n
4 h' _6 `# {& W! Z- y0 i& G- ;查找最后一个敌人( T1 v, J: L0 Z$ K
- Find_End_Enemy:, ^, A% v5 Q1 F) ^* b
- LDX #$0F/ Z5 F6 P4 _! J7 y/ w9 q1 B1 A
- Find_End_Enemy_Check:' w* _4 L1 A8 o! i; {# ^
- LDA Enemy_State,X
+ j4 _- v6 R& G- T8 Q - BEQ Find_End_Enemy_Check_Continue1 D; {9 U$ y) n- _( x
- LDA Enemy_Blood,X
: d. c, O1 {/ i2 f% Y' I8 v - BMI Find_End_Enemy_Check_Continue
7 B* `+ d6 J* _+ { - BNE Find_End_Enemy_End
. [: y+ T: m/ J: \/ y! P9 S - 9 w8 x: ^* f; r( Z0 V! q& p, K
- Find_End_Enemy_Check_Continue:
* I% v: @0 j W! _ - DEX
: U( s! G6 c. n: J! e - BPL Find_End_Enemy_Check
# f" B) v) [7 {/ L& @ - Find_End_Enemy_End:
/ J2 {6 Q0 w* F - STX Enemy_Index_End2 w2 R. ?8 J# E P8 D
- RTS
5 c' G- C# b6 d: p0 d# `
" G# ^# ]; k! w- ;子弹追踪& v( R' D" j, A: k4 Z" x" I2 A
- Bullet_Track:6 g q/ X) e8 {0 j# m I
- LDA Enemy_Index_Begin
2 `9 ^. b# o; v* c3 _ - STA nEnemyIndex ; int nEnemyIndex = nEnemyIndexBegin;
/ u e7 c+ D7 ]1 p% L: \ - LDX #$00 6 S, E' s) p( h% Z
- Bullet_Track_Check: ;for (int i = 0; i < _countof(nBullet); i++)
9 c9 i! a( B# A% Z- S* k - LDA Bullet_State,X
/ l* G! K4 i! Q f* m - BEQ Bullet_Track_Check_End ;if (0 == nBullet[i]) continue;7 W( _0 E/ L' e& K5 A5 P$ o/ |( C
- STX Loop_Index_I
4 a8 F1 F- d V3 f2 v( W -
7 Y- U" s- E( d7 T. {$ I - JSR Bullet_Track_Enemy5 W. m# |/ ]; g; g& m
- JSR Bullet_Tract_Direction2 Q2 y( X. J2 x I
-
0 v6 G+ P! e6 a+ ]/ 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
: T. z# X, M" z - ;if (nEnemyIndex > nEnemyIndexEnd) nEnemyIndex = nEnemyIndexBegin;
+ S/ m4 F" N2 [ B4 [+ e - LDA nEnemyIndex ?! o1 E( c3 Q2 G" |
- CMP Enemy_Index_End$ F2 b) L2 T4 X) z: A8 T
- BEQ Bullet_Track_Check_Continue
& @% J5 A0 n% u& _4 N - BCC Bullet_Track_Check_Continue6 A/ Q) k% I8 a+ p
- LDA Enemy_Index_Begin5 H! Y) K4 a2 Y: E
- STA nEnemyIndex
0 n5 A' @/ j6 p# b. Q -
# X V! {* d/ U0 y& P* r. [: ^ - Bullet_Track_Check_Continue: o: S: s9 C* j# ` Z8 U) ~" c
- LDX Loop_Index_I
) m9 H$ E' g4 v" A# S - Bullet_Track_Check_End:6 e F! D. o2 R5 g6 {8 T
- INX
2 W7 u1 @5 v- Z! A - CPX #$10! W8 ~2 @" h9 C: J0 w( o: R( h+ \
- BCC Bullet_Track_Check( O& I. w. H1 o0 v) a7 R) d" u
- Bullet_Track_End:$ c7 ?' p0 X7 s/ Y
- RTS s2 _, ?) }, |+ [: ^7 ~' ^
-
|$ U6 m3 e# H2 g - ;给敌人分配子弹
. s( o8 v! }; o; T5 F" H( }& B - Bullet_Track_Enemy:$ r. |) O+ z2 B1 p7 R
- LDX nEnemyIndex ; for (int j = nEnemyIndex; j <= nEnemyIndexEnd; j++) V6 o% ~, M# v% Y
- Bullet_Track_Enemy_Check:
9 t4 p d+ `7 d. a( p - STX Loop_Index_J
! W& q5 X( V; f. r1 D' E -
9 E- k& J1 y2 k1 T# k+ C - ;if (0 != nEnemy[j] && -1 == nTrack[i])* H5 M% X- x0 N7 S, b2 \% y `/ Q
- LDA Enemy_State,X) d7 c5 m. d% f9 f, k
- BEQ Bullet_Track_Enemy_Check_Continue- D, S+ h6 F9 @3 W) k
- LDA Enemy_Blood,X
* N4 s2 g; C, O* m# h3 Q - BMI Bullet_Track_Enemy_Check_Continue6 |" o1 U! v! y# G
-
: t9 y# r% e. u4 f - LDX Loop_Index_I4 j8 g2 Y1 p' Q" k, V( o5 m5 X# Q* O
- LDA Track_Enemy_Index,X$ W+ f$ V8 ], U
- CMP #$FF! y" T# g/ H7 e& U8 Z: ~
- BEQ Bullet_Track_Enemy_Init
6 l: L. M4 E2 f- V( w& M+ L2 ] - 9 O. [2 x: I9 A
- Bullet_Track_Enemy_Init:) }# I% n+ B/ W
- LDA Loop_Index_J6 v% b8 X6 Y: [1 Y* J" v- P/ z
- STA Track_Enemy_Index,X ;nTrack[i] = j;
7 @, q; @$ _' G -
/ n& x" L9 |; Q* _ - STA nEnemyIndex
1 h' A; f# v! z7 k1 C) L - INC nEnemyIndex ;nEnemyIndex = j + 1;
7 n. E8 ?& f+ N1 V' x# Q% N) M0 c' A - RTS ;break;
6 W9 z0 ~, @2 }( `; } - 3 o/ Q/ C8 y5 x! U" m
- Bullet_Track_Enemy_Check_Continue:
5 r4 K/ C: G, z; Y6 L- o+ j - LDX Loop_Index_J
4 E( m& B; C; f7 Y7 ] - INX ;j++2 q# T) V* \, p$ ?9 o; \: U
- CPX Enemy_Index_End
: e* @7 {+ H. @( e& w% ~ - BEQ Bullet_Track_Enemy_Check; u; k V3 ?* ^# b9 p9 f$ f
- BCC Bullet_Track_Enemy_Check
% v/ p8 ~0 q. K1 K$ [ - Bullet_Track_Enemy_End:
3 G- @, [& R4 G. ? - RTS6 N, Y& R3 A/ l" @2 R
& v3 x5 m9 z( D6 N2 E- Track_Enemy:3 o4 G: `# f9 h; Z8 C; P3 n
- LDX #$0F
' R4 R! B' m; Q - Track_Enemy_Begin:" M1 b. z6 _) f) B) p7 ~
- LDA Bullet_Icon,X2 S0 C( n) c& U7 y
- BEQ Track_Enemy_Continue
8 A( {% o5 N' K - LDA Bullet_State,X
3 c$ H# n5 u8 y' H8 `1 B8 q. a) T - CMP #$01
8 N3 Q- D7 E7 j2 ? - BNE Track_Enemy_Continue
$ Y' s% J S5 C4 Q8 u2 |5 | -
) b3 C; t5 ~" r4 l2 f+ d/ d - JSR Track_Enemy_Process l ] C8 V) W
- 3 ?& q2 H9 y9 `
- Track_Enemy_Continue:# z# v/ w, N7 `3 P" Z% W2 d
- DEX1 T% p0 H- ^* ^: K3 e9 h6 r; T( m
- BPL Track_Enemy_Begin
0 J1 v' N3 a B4 ^( [; S# z4 ~+ L - RTS
/ C4 H, N* [, b! N: l/ Z4 @) O- Y - ; [4 `3 T( M3 n5 ^9 S% S
- ;普通关卡1 S9 s% y2 Q, o: W4 L
- Track_Enemy_Process:0 b3 p+ J# R& m$ G3 p
- LDA Track_Enemy_Index,X2 M4 s2 L/ S! c$ W; M9 L+ c
- CMP Enemy_Index3 j# s) ]- |: C5 f4 ^! Y
- BNE Track_Enemy_End
9 z3 J$ w/ E8 S6 T - LDY Enemy_Index! O1 r! d) I6 M
- JSR Track_Enemy_Y$ v7 o2 L1 _' E S8 d2 J
- LDY Enemy_Index; {# `5 [/ W+ w% V
- JSR Track_Enemy_X
; p1 t7 I7 P9 A - Track_Enemy_End:
4 G- s3 h @' e( R! M5 w8 G: ^ - RTS4 [$ o q, q* a0 i2 ?* ~
-
+ ]* G# `9 _' a& w' x# F - Track_Enemy_Y:
) p m+ M/ k( }0 o! l - SEC% ^7 V/ Z; P0 {7 R4 W+ c3 I: ^
- LDA Bullet_Y_Pos,X4 {' D4 t5 ~5 ^& f) N8 S. m
- SBC Enemy_Y_Pos,Y" {6 K) \( @/ U0 Z0 f7 W
- BEQ Track_Enemy_Y_Equal
% `6 I! y3 C2 N - BCS Track_Enemy_Y_Greater
& J+ n, J* V' {: A -
2 n; Z: ?3 { z - Track_Enemy_Y_Less: ;子弹Y < 敌人Y
) ]- w0 C( \, Y& R3 w, r# V% U0 i - CMP #$FC
: i: ^* E$ c. q4 h1 `0 W - BCC L1_1
$ @8 Q6 M; f4 r* @0 s - CMP #$FE
1 K: S" F, ?4 I, o5 @/ S - BCC L1_2
2 S( Z$ D) m, b: ]/ p, V8 O$ y - LDA #$000 ] S, g B/ L
- STA Bullet_Y_Speed,X4 i& \9 R' e1 [: c O& O* p y
- RTS
: g+ [: j0 m1 H) ~6 t: e. a. V7 A' q# K - L1_1:
f# H" B s) m) H# |1 y - LDA Bullet_Type,X
$ \; E) g) M% U - AND #$0F) L% @3 p1 L( J2 ]+ s) X, Z' O
- TAY
! ~* V9 Q- G3 a9 s+ D2 E' {& j - LDA Bullet_Speed_Data,Y
5 |% }: g8 b" e8 t$ T. D - STA Bullet_Y_Speed,X
' Z: u8 s1 e8 Q; K* r - RTS, h5 y8 c/ m6 D7 A
- 6 k# K# j+ J4 C) w: L! l
- L1_2:
& H2 K C% h1 C8 s - STA Data_buffer
$ b {/ Q5 |6 Z# S! w( n - LDA #$00
! A0 I' z, p l - STA Data_buffer
* c F: J) `% G" Q L! e( F% i - LSR
- Q7 _. U* A$ b& @$ S2 t# [ - STA Bullet_Y_Speed,X
% q& Z; b( V1 h - RTS5 L. m% C0 g0 V3 c; R- b
- ) f( v/ M0 S/ c) Q' o Z/ |. @
- Track_Enemy_Y_Greater: ;子弹Y > 敌人Y0 u7 K0 E# ?9 O9 v2 R2 b8 W- t
- CMP #$04 K2 Y+ F0 d; A6 {
- BCS L2_1
9 J6 p+ u2 x- l" k$ b e2 F, t - CMP #$048 p6 i7 Z6 ?! }# R: R* U6 v; _
- BCS L2_2/ M, P) A W6 _! v+ E# `" k0 G7 Q& [
- LDA #$00
. F6 R1 X6 W7 R' y1 u3 N) y - STA Bullet_Y_Speed,X) |; Y$ }* A) f; _, J0 ?- h
- RTS
* {7 t4 t. l5 |4 i! \# g - ' B- _* R5 v0 T) @+ Z( W' _( d
- L2_1:
u6 a: R" k9 g* S - LDA Bullet_Type,X/ R3 Z5 e3 I3 f- r1 {! `; j
- AND #$0F7 q0 X0 S4 S0 g9 X8 \/ o! Z
- TAY
9 ]% P" T& S+ k$ K: u - LDA #$00+ ^6 S* X3 M; Y* o( l: t1 s% G
- SBC Bullet_Speed_Data,Y
9 B( U: ^! m# O& S9 p. a4 s. r; o: [ - STA Bullet_Y_Speed,X- V" w I/ ]& N; I, A( O! j' f& L
- RTS
4 i l# a. Z# q0 ^, c - ! {0 [& X2 q% O3 J
- L2_2:$ k3 o" m8 A x- n$ \8 F, Y5 _
- LSR
& D8 h0 f7 T* A% K8 r/ \$ `# ^ - STA Data_buffer, l' t: {8 _/ [% K" P2 u
- LDA #$00
Q/ x- f6 g# k; C$ S! E5 V. n% \5 x - SBC Data_buffer& }# e1 @' `7 P8 T
- STA Bullet_Y_Speed,X4 Q% ~- q$ J& D5 ]( [" ~; r/ c. f W1 }
- RTS
3 X0 X; c/ E$ S& _3 F# w0 D - # t6 d1 `6 g2 V: A( L7 ]
- Track_Enemy_Y_Equal: ;子弹Y == 敌人Y' k& t, q7 t; S; R6 Y* F1 K' Y) u
- LDA #$003 ~# z. _" u$ L/ d2 P! q" A7 S& m
- STA Bullet_Y_Speed,X0 L( ~+ F% V. x% x/ [% P+ ~0 }( i
- RTS; _/ U* j) V4 c- c q+ x' c% k5 R
-
3 A/ U- _$ \# R& q- \0 d - Track_Enemy_X:
. F, F% n0 D& I. X) r) N0 W - SEC
0 F- m1 y6 b- j5 |. L1 D& ]2 j - LDA Bullet_X_Pos,X/ E$ \4 q. K3 E2 g: O
- SBC Enemy_X_Pos,Y
! x# Y% U6 H$ [, G$ q% A - BEQ Track_Enemy_X_Equal ;子弹X == 敌人X f4 e/ H6 Y1 h' ~$ Q! L* F
- BCS Track_Enemy_X_Greater ;子弹在敌人下方
5 j6 h3 {& F7 ~' `% |+ ` -
' L. o3 D6 W& w& R - Track_Enemy_X_Less: ;子弹X < 敌人X
% [' {& n: o$ @) \1 ^7 z* R - CMP #$FC
e0 h# q$ F, d - BCC L3_1
0 I+ L0 a! R3 O/ ?: t" M" p/ t2 f - CMP #$FE
6 u9 V' C" U7 l1 d, }" f+ ` - BCC L3_28 V" Q7 |0 T0 t* `; I2 Y" G3 `2 I
- LDA #$00
1 n, K" b- u" S# M - STA Bullet_X_Speed,X
' x8 R7 I, q0 H. m' O. p - RTS, I2 u _, z0 D. W- Q; I
- L3_1: . x3 p+ y( m. y% F8 V* y8 s( e( J
- LDA Bullet_Type,X
# ^6 _" i7 y6 K2 O0 t - AND #$0F
' ]- o$ E, Y" t+ P& o1 r2 Q& O( C - TAY
6 ]' ~, \3 }, T* Z% O9 w3 i - LDA Bullet_Speed_Data,Y
/ d- J: l! E' m2 M- L9 S1 A - STA Bullet_X_Speed,X4 n: \- c W$ K/ N4 i) m1 K* M
- RTS
8 v \) h/ e+ ]; B. h! Y( v - L3_2:
5 w, s& T# G/ n, C9 A/ ~ - STA Data_buffer% R0 \% t7 E( v& {! b' g- F
- LDA #$00
) n8 n4 E9 @& b- f' Z2 H6 I - STA Data_buffer
. F% Z3 }" @: T+ A8 p - LSR
4 Y: a( D: S7 E& v - STA Bullet_X_Speed,X2 y3 {+ |; b' l1 x6 k6 }4 A. ]
- RTS
1 ^" S& G* k. V [8 S" P - ; I2 F' V! b! O, X
- Track_Enemy_X_Greater: ;子弹X > 敌人X9 E: t9 n. ]+ G/ X% i
- CMP #$04$ W# I, Z- ]' w2 |1 C' K
- BCS L4_1) B4 t, ~3 h2 m7 G |! r
- CMP #$028 \' Y5 k/ p! a$ q
- BCS L4_2
$ a4 o/ N2 ]- u - LDA #$00
8 ` |! @" k' ~% {; v+ ^ - STA Bullet_X_Speed,X
; E+ f) ^ @! t+ X+ r# _ - RTS
; n+ {' W& [/ Y -
. z' f- c( i: C9 ^, L - L4_1:
) Q9 z6 N' ]- P- J' ? - LDA Bullet_Type,X' X) @. {: d/ ]& p: ^5 N" J, P
- AND #$0F+ t, X% u! ? O& k( b+ C( `
- TAY
T4 {0 ]8 S/ [2 N0 q - LDA #$00- P3 @! F. `0 b4 ~9 e
- SBC Bullet_Speed_Data,Y$ {* W- m* R5 l/ u% q5 _
- STA Bullet_X_Speed,X9 g6 r+ B3 u8 f8 B3 f
- RTS0 l7 B0 f: V1 l2 x! r( d+ j
- L4_2:
5 @. f) F! o; J/ E7 J" S - LSR8 B6 @0 E; L# F' m2 m& n* y9 Z
- STA Data_buffer
0 x F2 G k* z" M, L1 C9 x* ~* P - LDA #$001 X/ P" [5 d* U8 j6 V: s& m
- SBC Data_buffer) S1 v- i! S K# }1 a% @0 c
- STA Bullet_X_Speed,X
. h6 H- _3 e' v* x! D& ^ - RTS3 z; Q1 d# l" m: h2 i% P" T
- ( P8 y7 r9 @- |+ }1 Y# m
- Track_Enemy_X_Equal: ;子弹X == 敌人X2 q) @* K/ R8 T1 @/ ]
- LDA #$00: m0 r' a* o4 X# ^) n2 i; {
- STA Bullet_X_Speed,X
, t$ f3 O( w; Z% p" Y/ E8 _ - RTS
+ d a0 x! X: M7 R/ ~( E - 6 C% g R+ s; S B
- Bullet_Speed_Data:1 r/ U Y' S- o7 r: @$ s
- .DB $00,$03,$03,$02,$03,$03
, d: `: [( m) G" G! B - $ u% T' v4 S' E6 m( P3 U3 W
- ;2, 4关. X7 D! ~" I( {7 s
- Track_Enemy_Ex:" T) ~6 t% x. A8 s/ J
- LDX #$0F
, C) c8 f2 S3 s: t) O - Track_Enemy_Ex_Begin:! V$ `- }9 D8 Z3 O, U+ s5 X
) ^" P- x* o8 K# b- LDA Bullet_State,X& E4 k- B! R" t2 F9 E
- CMP #$01* w! r w3 V2 d
- BNE Track_Enemy_Ex_Continue: `$ F& T% D& W, C" W4 M$ c
- 2 l& m2 d; b. w$ }4 C( t: o) T
- LDA Track_Enemy_Index,X l& Q2 L. A" m# v) z1 Y" c- E& ~! N
- CMP Enemy_Index
7 Y5 b J% g) W* h - BNE Track_Enemy_Ex_Continue ;匹配追踪目标7 L% ]/ e" c# n# F4 B x0 a3 B
- + S6 E9 m. v4 W$ k$ Z1 q
- LDY Enemy_Index
# S" O1 @( D4 J5 n( ~ - JSR Track_Enemy_Ex_X
; n# K7 A, b4 x* V3 l; o -
2 y) L2 `% G0 [ S7 p - Track_Enemy_Ex_Continue:/ }7 ]+ }$ y3 a; `! N
- DEX
7 j6 ^8 d7 w5 a9 _2 F - BPL Track_Enemy_Ex_Begin& n3 d, l' Z& u) ^- Y+ \( B4 t4 Z
- Track_Enemy_Ex_End:
2 p+ M: W9 \; G k - RTS
?- y; ~: R( Y -
, p3 A+ z; ? T6 |2 a g3 B, z - Track_Enemy_Ex_X:# l, j1 p+ N) `4 j- S& E
- ;LDA Bullet_Z_Pos,X2 _1 o; A& L+ o
- ;CMP #$04
" p9 i$ T, I+ m& g+ O. { - ;BCC Track_Enemy_Ex_X_End4 W/ I. m. O& U9 g) q3 Q3 R E
- SEC
9 M. ^ M9 i- Z7 s7 @+ B% b& i - LDA Bullet_X_Pos,X" w6 p5 x$ |# a) |) g" C# \
- SBC Enemy_X_Pos,Y7 e! h! w* a8 B5 `! R2 R" K
- BCS Track_Enemy_Ex_X_Greater7 U: {% h" q/ j) u* h9 T
-
" |" }4 ^- g5 u - Track_Enemy_Ex_X_Less: ;子弹X < 敌人X2 Q7 u7 f4 u# j2 c
- CMP #$FD
0 C/ J9 N. m, k% R - BCS Track_Enemy_Ex_X_Less_End
) g/ p4 X2 i8 p3 ` c - LDA $6020,X
, V- E8 N2 K1 O, k0 `9 ? - CMP #$2A
+ ^: w. j' O. G# `! S - BEQ Track_Enemy_Ex_X_Less_L1, X. h7 R- o% [) L7 O1 X
- LDA Bullet_Z_Pos,X, E* W) `% {9 p0 |" b$ S
- LSR2 N1 M' |0 u& ]: y2 \
- TAY0 L1 b$ W% ~+ V* f! s: X% E- m
- LDA Bullet_Speed_Data_Ex_R,Y$ B4 W4 ^/ _9 Q5 @/ n" C
- STA Bullet_X_Speed,X' ], M8 D. D8 d4 b
- RTS' d/ Z2 x b% {# E( |5 A
- Track_Enemy_Ex_X_Less_L1: B2 c1 @- h: L0 X9 {2 Z
2 x3 v+ S0 X1 Z" s$ Z+ P! {- LDA Bullet_Z_Pos,X$ p$ g% q( c" w s1 o$ J
- LSR
6 L" C% p: J3 |% H% A - LSR
; |2 z# m' L: p$ y B. J) L - TAY
7 x* C) t8 V: s- H4 d2 T/ _) Q - LDA Bullet_Speed_Data_Ex,Y
+ @! o% W0 |1 `* ]) s7 g" o - STA Bullet_X_Speed,X% A* G1 r) q& @6 _) A& S" l' ?8 ?% O( ~
- RTS
2 s( o6 y) M. v" N S3 y* A -
! U2 @: F2 D) _( t5 s+ @) e8 ~1 x. D8 E - Track_Enemy_Ex_X_Less_End:
$ s& r- M6 p/ x; P - RTS
" Y' l3 y4 W% L5 n+ u5 n9 c
" b+ s% f- }: `3 I- Track_Enemy_Ex_X_Greater: ;子弹X > 敌人X; {" R5 ^% s; A" d
- CMP #$03 Z8 i3 @% D! Y' q: A# V
- BCC Track_Enemy_Ex_X_End7 m" e, y3 \* s& y& l
- LDA $6020,X$ d3 h$ v: v+ \, D0 o! W
- CMP #$2A
, {- b8 y1 y- B* r) ` - BEQ Track_Enemy_Ex_X_Greater_L1
: L% ~7 K- d$ p+ J0 ?. \2 ?! f - LDA Bullet_Z_Pos,X
9 ^ ?7 P/ g5 j' {4 w4 @$ D - LSR, Z* P9 Z1 o0 h# c. \
- TAY; z' N N1 W7 u. `4 e* J
- LDA #$00
- \$ t& I/ p( T! F - SEC" P* ~5 y9 e. }; M
- SBC Bullet_Speed_Data_Ex_R,Y* b& S( T. @0 M8 V' E$ l/ d; _
- STA Bullet_X_Speed,X
3 P& h' m' {. V7 w; N - RTS# t9 v& I; C$ ]/ Z! Y
- - `4 e5 k( C8 a1 T% V0 Z
- Track_Enemy_Ex_X_Greater_L1
/ ?- u. H O' Q9 L% r - LDA Bullet_Z_Pos,X
+ ?, B, G/ j* _5 e. ?" B8 ` - LSR, V% f1 W3 |' }# t$ ^) D: w
- LSR
9 e: G- i8 s! g, P" _- F. V. k - TAY
J! B/ D% L5 p) S0 O - LDA #$00+ E$ B0 S, [3 x
- SEC
+ v) T! z; n X7 P: J# [# [; a: h - SBC Bullet_Speed_Data_Ex,Y
( q6 g7 A" d+ J - STA Bullet_X_Speed,X( D, r+ r# V& ?2 X( w( n
- RTS4 V: |$ Q, n& ]% T X
-
% A8 d9 s5 j4 o& j' A( { - Track_Enemy_Ex_X_End:3 g F* r! p& W& l. _
- RTS! `3 N$ `6 V) c% W. r$ F
-
3 z) C2 @) C/ z' M% ?( ^ - ;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 p+ |0 B, i6 U x R" @
- ;Bullet_Direction = $0378 ;L子弹方向 40左下 C0左上 80右上
# P0 z( A' l1 Z( T+ @) |& E( u - Bullet_Tract_Direction:
+ \' l# _4 n7 E+ D, C - LDA Bullet_Icon,X
( I7 A% p. `" U3 v0 l2 N - CMP #$230 _% ` F* h4 P' Z
- BCC Bullet_Tract_Direction_End% i M2 V, j! J7 k9 W9 \- o
-
) @" e% R0 f* F9 t6 \( G - ; X != 0
% A$ C5 D8 k& T% b; C - LDA Bullet_X_Speed,X) c0 [# r0 E4 A; L$ G
- BEQ Bullet_Direction_V1 ~1 D% j: j: E2 J* ^. e
-
% s b, l W+ {# L2 c - LDA Bullet_Y_Speed,X
: j* ^6 o8 H7 `* F: { - BEQ Bullet_Direction_H
! ^( b+ x$ Y3 i( q: A: T- y4 n - ) \ C7 V' |( J. o0 L
- LDA Bullet_X_Speed,X
2 i6 `" M, ]: ]9 P- |5 C- Q4 @ - BPL Bullet_Tract_Direction_Right
& B* x5 h' _- A! V8 h' K! r - Bullet_Tract_Direction_Left:1 G, \- Y* \) U" v; S) K4 A
- LDA Bullet_Y_Speed,X
( R# ~3 W# @1 P& r8 E. r8 e - BMI Bullet_Direction_Left_Top) u1 g$ H4 V4 {8 v. J/ V
- BPL Bullet_Direction_Left_Down
5 Y! r' Z7 ]0 R" E5 K' E - Bullet_Tract_Direction_Right:) t+ ]" W* ?0 w* V. y5 a
- LDA Bullet_Y_Speed,X
6 Z" Y/ Q" c( q* d - BMI Bullet_Direction_Right_Top
( I: m/ a( E) p7 X. O1 O$ _7 E& q1 E - BPL Bullet_Direction_Right_Down
/ ]/ T# H5 F4 d3 e7 d% p+ \ - Bullet_Tract_Direction_End:. S4 _! u: I# R# c N# |
- RTS
2 K" k$ I; b* G7 m' J
( G( l' p. d. k- Bullet_Direction_Left_Top:7 _/ [. S1 K3 Z" u4 M
- LDA #$25
" n r7 B% ^1 H$ g - STA Bullet_Icon,X
* a, V0 A2 `( z6 S1 @ - LDA #$C0
7 h7 Z% t0 T+ E* [- d3 N5 v - STA Bullet_Direction,X
) {+ P# \) F8 u7 t - RTS
5 \: |' }& k# W0 M6 w8 H - $ C7 i) I. Z0 ? h+ Y0 D
- Bullet_Direction_Left_Down:
" P: e4 R, h' b - LDA #$258 ]! G& F& d+ x6 J$ d- Z- t; r
- STA Bullet_Icon,X4 M& y0 w r P% k1 L# M* m
- LDA #$40
/ o+ W# p6 F! h0 G p* k9 o8 W - STA Bullet_Direction,X* k- Z, `, z) q/ X
- RTS" c2 O/ E9 _* a# [7 e9 n) Y
; U* e$ f' n. x3 [/ s$ P* n- z3 [. U5 U- Bullet_Direction_Right_Top:7 J4 j, X' b) j: O. A: j7 z
- LDA #$25' V2 j# j* y# {* k( I
- STA Bullet_Icon,X) H, V3 n/ o* h- |5 t# y. h
- LDA #$80; Z; S8 P. m8 e, V+ }% v3 q
- STA Bullet_Direction,X
3 S5 E) {, Y# R3 a3 P, G; I9 P+ l - RTS' B) h- R5 D. c( _" m% ?9 w
/ Y, @: j/ o% S% `. ]- Bullet_Direction_Right_Down:9 P9 M( H8 V6 }" p+ t3 H! B
- LDA #$25
6 I+ H# |4 A& f7 [8 P - STA Bullet_Icon,X
" c- @ X, u6 l' Y+ [2 K& C - LDA #$00( j6 b; _; W: |% b
- STA Bullet_Direction,X
) B" T, v8 y1 V/ k - RTS
1 M+ ^2 [+ }2 A9 ^$ t - : I5 a3 _; G) d" _6 U: u
- Bullet_Direction_H: \# e2 }5 Z# }5 M, h
- LDA #$24
0 x! |+ r6 X4 i- V- l6 L$ C8 W - STA Bullet_Icon,X
3 r1 c9 u: y; j2 B6 o - LDA #$00/ H4 @8 @9 n+ t. L
- STA Bullet_Direction,X
0 @1 j. M, a: f' X- {0 p - RTS
; |+ N! w2 F" S& K9 [; q" V, W
3 R' Z% Q! f/ f5 L- Bullet_Direction_V:8 ^4 i6 I& V# ?, b
- LDA #$23* C# H2 Z/ C, q9 ^7 R/ V
- STA Bullet_Icon,X
* Y) g7 w/ N+ S* C# k - LDA #$00; t9 {6 b; \* S7 |+ G7 I
- STA Bullet_Direction,X' q" P7 F/ b+ v* d/ n5 D" o
- RTS5 q: `& J1 V1 N) h' }% T+ U
- & n& }, d; @ |% l) ~
- Bullet_Speed_Data_Ex: A' H9 K9 ]: X$ w
- .DB $01,$01,$02,$02,$02,$03,$03,$04,$04,$04
, f' b- C6 F+ j* h) E/ |4 ?. E -
- O; Y6 V0 A$ Q- i) \( {- f2 Q$ u4 n- d - Bullet_Speed_Data_Ex_R:
% w/ p3 b! ~! B! d( f- Q) n - .DB $02,$02,$03,$03,$04,$05,$06,$07,$08,$08
6 C: w2 G* R* ^+ u$ p -
复制代码 # O+ _3 P: X6 k8 T; N8 A) {1 Q
# |7 m+ n# L: W3 T+ `" G/ ]5 f* E
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