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[FC][魂斗罗][J][追踪弹]! v ^" p* E% y# W$ B/ _% s
; ^8 W7 V" f% ^1 o' P$ q' f9 t+ p时间:2023.04.30
/ i0 c' X) \1 v0 W5 o# z; g作者:FlameCyclone+ t5 T, u- l" I5 T1 D
内容:3 c4 _8 U. k$ y0 ]& i
1. 所有子弹追踪敌人
2 o& n. G$ A+ F 2. 选择键切换武器
' \/ m! j! ~2 G# q' R# z 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
" ?% H" o9 c( S0 q; l) ~
( X* _+ w7 k0 c! K6 l. ]flamecyclone.ys168.com# g! l( L1 i) n

: k- G' j" Q; |# W9 J m% ?: T- Bullet_State = $0438 ;子弹状态 0:不存在 1:存在 2:销毁
9 \* Z: e8 a( k( }( K, d! P" e - Bullet_Type = $0388 ;子弹类型 0: 无 1:普通 2:M 3:F 4:S 5:L3 u' A+ M& S* Z" b1 a
- 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)! O. A7 O) Y2 H' U" {8 w, L
, I5 v7 t' R' q- ;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)
6 J5 G' L: L+ \5 ^. D! J& c - Bullet_Direction = $0378 ;L子弹方向 40左下 C0左上 80右上& t' R2 w9 u6 E5 H* H) v
* ^ w0 p5 x7 Z4 c2 m6 ~. x- Track_Enemy_Index = $6000
/ m# \' m+ C& W - Enemy_Index_Begin = $6010* A4 c8 l! m' C1 W" Q
- Enemy_Index_End = $6011) b: z0 Z) N* W2 ~6 m& G
' I" v3 r" E: p6 \: ?) r% }- Loop_Index_I = $6012( W5 ^2 {2 H, G6 f
- Loop_Index_J = $6013
~( I2 s& Q; U' \ - nEnemyIndex = $6014; F$ t v) h, S! A6 e, B- N
- Data_buffer = $60151 H. {: T d1 Y8 U; ^' I
- $ w5 F `% r- m, ^/ X) f
- Bullet_Y_Pos = $03B8 ;子弹垂直坐标- l( }( e c% l
- Bullet_X_Pos = $03C8 ;子弹水平坐标
/ ?" q4 k& {* m - Bullet_Y_Speed = $03F8 ;子弹垂直速度
+ A; |: R1 o0 V - Bullet_X_Speed = $0408 ;子弹水平速度
! T) s" c/ k+ p1 D- W - Bullet_Z_Pos = $0418 ;子弹Z坐标
3 C2 y6 ?& [, v) Z" N* F5 j - Bullet_Owner = $0448 ;子弹所有者 0: 1P 2: 2P
* _2 w3 o' }, g) \9 t7 _1 c
' z% X3 r* V9 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
! {& @' L) A5 l2 `8 ] M( v2 I - Enemy_Blood = $0598 ;敌人血量$ T5 H( n6 A9 W/ ?& a& c% g3 w# L* @
- Enemy_Type_Addr = $0528 ;敌人类型
+ j( ~# o! {# h0 L - Enemy_Blood_Addr = $0578 ;敌人血量
- k \$ R6 h2 M3 G2 v& b5 g4 f - Enemy_Y_Pos = $0324 ;敌人垂直坐标
. Q0 [& B& E5 M0 j3 h6 l3 y6 n - Enemy_X_Pos = $033E ;敌人水平坐标
) I3 t* C I5 t; w3 N$ M - Enemy_Y_Speed = $04E8 ;敌人垂直速度# j/ U3 U0 n1 K M0 q* N7 D
- Bullet_Alive_State = $04B8 ;敌人状态 5:弹起爆炸 0:不存在 6:下落 7:原地爆炸
1 `7 e. ~7 w3 q( M! q
: c$ _+ s0 r5 ~8 D- Enemy_Index = $83 ;6 a' k8 Z, _7 B8 Y$ I
- Time_Count = $1A
6 X S4 s$ J, J* c5 i - Track_Bullet_Speed = $07 ;分配子弹追踪敌人频率# O. F! J# U0 T; Y9 v
- Track_Enemy_Speed = $03 ;子弹变向追踪敌人频率, E$ ~/ {6 {- X: ]8 ~! `4 t F, Q
- / S: b2 @0 B- x& g' t
: ^1 g4 Y" p% i h- .ORG $61006 R, y/ G- _1 m2 f
- Process_Begin:
, \8 }) _0 w7 J1 V5 _( T( s0 b - JSR Enemy_Check
& ?, r0 h4 z8 a% M2 f - JSR Track_Enemy_Check b* W# D/ U/ X5 `2 L
- Process_End:. N& V2 c% `* q
- JMP $E54F
) \: d: k8 X" P# O) W: G - 9 d3 \) Z4 y$ Q5 ~" l
- Enemy_Check:
* d; F, J/ U- @" w7 U1 O& H! Y - LDA Time_Count
4 y9 X3 D( i! h- \8 z - AND #Track_Bullet_Speed7 N( T( ]* Z4 O7 f
- CMP #Track_Bullet_Speed
/ H; O! O1 A1 \3 x" o - BNE Enemy_Check_End
5 K: i- h3 V+ T7 g) I% U) ~' a - LDX #$0F
- x# [' S) A$ Y! F. v" p - Enemy_Check_Begin:
* A- U3 h+ A5 T$ n - LDA Enemy_State,X
/ G2 f* i& S6 O' P; R: L - BEQ Enemy_Check_Continue2 U ]1 l. N0 a2 C+ `. q
- STX Enemy_Index
3 \0 y& J& ^% q8 k: H - JSR Find_Begin_Enemy
9 h/ ?& s( o R' x2 B2 g; K - JSR Find_End_Enemy
+ m( a! F4 G0 P' P' j8 J2 w5 z - JSR Bullet_Track" c: W+ a y8 w% L
-
. _2 L7 E6 j; }+ `3 D - LDX Enemy_Index) }& x# T8 H# B1 G
- Enemy_Check_Continue:
: @) [/ [8 |7 @9 f0 {! [& _ - DEX5 l3 c- F$ Z2 V# I1 j/ ]% l% h
- BPL Enemy_Check_Begin% ^ N5 Q- x5 K9 D
- Enemy_Check_End:) ^8 P* d( Z! D3 R
- RTS
& y8 U; b) M3 C8 t. g% S1 L: @: @ -
9 Q8 }+ g8 e: J( ?: e' @4 G - Track_Enemy_Check:, d# g* g3 K8 T
- LDA Time_Count
8 w: m- i% ?7 c+ {! O - AND #Track_Enemy_Speed0 q+ d5 ~1 H6 N& V; e; s% @
- CMP #Track_Enemy_Speed' Z1 t( x3 F3 R2 d
- BNE Track_Enemy_Check_End. G( X, n& Y% G$ `1 g0 |; i
- LDX #$0F
* P e" C: |8 r6 @& m, Z - Track_Enemy_Check_Begin:8 y: f7 l1 o- T
- LDA Enemy_State,X
, x5 j- K- V/ M' {1 A# y% m - BEQ Track_Enemy_Check_Continue
8 s% b) E; Y+ d5 d( X9 ` - STX Enemy_Index3 D6 t( g# D; X/ u9 }+ {1 m
-
2 x! e$ l' q/ M& E6 L - LDA $40
5 _$ C( |5 g7 W# b - LSR
% h$ m* v9 V, C) h; ?: M - BCC Track_Enemy_Check_Begin_L19 x1 ?0 r. u# \7 H. W5 J5 a
-
" i. O; \# A; L8 @& L - JSR Track_Enemy_Ex ;2, 46 k2 Y, D4 C9 m" s6 `
- LDA #$002 H: k, c7 E4 N4 W" A; ^
- BEQ Track_Enemy_Check_Begin_L2$ V( d. k1 |/ N* N8 {5 n- j
- , t! o5 W2 Z/ U3 E0 K2 Y
- Track_Enemy_Check_Begin_L1:
/ G9 l( Q! K1 n( e0 x' Z; X - 7 N" `+ `1 g& E8 K# J5 H
- JSR Track_Enemy4 m5 Y# u1 J+ T9 T! S
7 A U) d& f2 G G, e ?- Track_Enemy_Check_Begin_L2:
1 {. b( y# A1 j1 S4 A6 T( n4 l; l -
* `/ [: K9 R8 _9 u: ` - LDX Enemy_Index
* y2 Z" |3 Q; W. `' T+ R - Track_Enemy_Check_Continue:9 \2 H$ n8 Q, f) q/ O; B" p
- DEX: x% N+ u% N: V& j" `
- BPL Track_Enemy_Check_Begin
1 D- W6 h6 v) H. N; S - Track_Enemy_Check_End:& H) O7 K3 v) J+ w1 j, z
- RTS
7 q; k6 u, H0 a8 ` - . K% x* U2 r% r' @2 h' ~ i
8 O. a% Z7 u, G) [3 |- ;查找第一个敌人
& g w. i6 q, `7 d+ L - Find_Begin_Enemy:
* Y% o4 }1 {& k1 J3 { - LDX #$00$ H. C7 e4 k1 X, H' U4 C- r( U
- Find_Begin_Enemy_Check:
! q x! o. D0 q) m8 h) ~ - LDA Enemy_State,X3 @- m9 f9 O0 z9 O1 H9 I2 W
- BEQ Find_Begin_Enemy_Check_Continue ]# |; l: d3 Z- u) J
- LDA Enemy_Blood,X) q* E8 ^6 Z& k5 L: f
- BMI Find_Begin_Enemy_Check_Continue
7 g' C/ E' p3 q7 N! V, P3 u8 F0 G - BNE Find_Begin_Enemy_End
& k, Y4 R g; Z3 \7 @7 ? -
* d5 B7 c% @2 k0 w! c - Find_Begin_Enemy_Check_Continue:
; L+ e- {- `' n/ G3 j7 T2 K, n' J - INX
! M: F4 G9 r# ^3 ` - CPX #$10 _* R0 D5 }$ p5 e
- BCC Find_Begin_Enemy_Check D& ?* T: i6 A
- Find_Begin_Enemy_End:- Y0 y3 O2 b# P- \! ]( \! ?. i# }
- STX Enemy_Index_Begin% A7 H* _+ D6 L. C* k7 X
- RTS
+ ~. E; g4 T. R/ z - 2 ^$ }5 C* \, s2 d: q
- ;查找最后一个敌人
1 r! H- G- o) u- ]# M3 s/ c7 j - Find_End_Enemy:( K2 C; g& M4 p% Q# a% g t
- LDX #$0F( p! p) K6 E% a) J
- Find_End_Enemy_Check:
6 w0 {/ g$ R5 b, s0 c: l9 o1 ` - LDA Enemy_State,X+ f) P1 k6 |% U2 I, i
- BEQ Find_End_Enemy_Check_Continue
. Z. b/ s6 C6 W/ u7 B - LDA Enemy_Blood,X
& I0 _+ ]; L) F3 ]" f8 ?7 ^5 H4 [ - BMI Find_End_Enemy_Check_Continue- x0 d- h$ n- W3 @6 H
- BNE Find_End_Enemy_End
0 E' C( }3 S8 n/ A! x7 T/ T -
6 w" ?- S3 f/ _3 N4 J: A - Find_End_Enemy_Check_Continue:
, S2 Q3 a5 a9 ~8 u - DEX
1 F( Z0 q+ o0 D9 C( l* R! V - BPL Find_End_Enemy_Check
7 P# `5 z& Z& o9 h - Find_End_Enemy_End:8 C5 H8 O0 d& F1 H5 i% K
- STX Enemy_Index_End! g% E" d, ?8 c, p) M
- RTS
% u9 _0 C+ h) K9 K/ s z' Y+ Q - . {8 B& B+ `3 r7 D
- ;子弹追踪" y1 b% I* u: U5 Z: s
- Bullet_Track:8 y7 w2 _; h5 W9 F& i5 Q
- LDA Enemy_Index_Begin
; M2 M/ N& C- @3 a" P - STA nEnemyIndex ; int nEnemyIndex = nEnemyIndexBegin;! d5 _7 Z/ d. s/ S1 g, t$ I
- LDX #$00 a" I0 u- @) w2 O6 C% y: C" q
- Bullet_Track_Check: ;for (int i = 0; i < _countof(nBullet); i++)2 [ A% l' U1 I0 \& ~) |# \. b% R
- LDA Bullet_State,X8 d9 ]2 r1 f! ^, B
- BEQ Bullet_Track_Check_End ;if (0 == nBullet[i]) continue;
8 d+ @4 `# l+ ^ - STX Loop_Index_I/ {, s2 L; |8 z
- . O$ m$ x6 `4 j0 x: t- G$ V
- JSR Bullet_Track_Enemy
3 ]+ ?# l' C) {, X# R( d% k, e - JSR Bullet_Tract_Direction2 V7 H; s+ M. @3 k5 ?5 t, ?
- " A0 z$ ~! n; H/ G3 M. E, u
- ;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
4 }" \, n4 c6 J2 c, C - ;if (nEnemyIndex > nEnemyIndexEnd) nEnemyIndex = nEnemyIndexBegin;
8 z, m, e6 P, Q' u3 q - LDA nEnemyIndex
9 \" J8 V! d$ m1 ^0 b9 D Q/ t/ ] - CMP Enemy_Index_End K( F" t1 Y; r9 x/ `
- BEQ Bullet_Track_Check_Continue
3 r, ~7 a% _6 J, h - BCC Bullet_Track_Check_Continue
* V" E/ L1 @: t9 Z( t8 `1 D5 ~ - LDA Enemy_Index_Begin
" T! w* r! ] ~# Y - STA nEnemyIndex9 o( l. u f S* d
- 7 z+ ` f. f% J7 O
- Bullet_Track_Check_Continue:5 f) F8 m: X1 N0 r* E2 u7 g
- LDX Loop_Index_I; k6 T+ f. Q8 Z) f; N! y
- Bullet_Track_Check_End:. w: R* K2 P* \" R
- INX' ?( f) }& v3 |3 v Y
- CPX #$108 f+ p5 }1 h Y" x' X0 x& k y: i
- BCC Bullet_Track_Check
0 \5 b& ]! A, C. b - Bullet_Track_End:
& X! B0 ]* Y1 Q$ t, l - RTS
% N2 a& y) O6 b5 b - 4 b2 A# X- S9 X
- ;给敌人分配子弹
1 v: r) R. H0 R4 a4 c1 @ - Bullet_Track_Enemy:
& G! A6 V& ~& h3 @0 S - LDX nEnemyIndex ; for (int j = nEnemyIndex; j <= nEnemyIndexEnd; j++)
8 j+ c) n _( j - Bullet_Track_Enemy_Check:
( e$ x$ n8 N* @" l2 [' @ - STX Loop_Index_J' o+ G& r t+ m2 @
-
9 o1 R4 q' s( c, f; w& }1 k - ;if (0 != nEnemy[j] && -1 == nTrack[i])/ [- N: v5 t/ `: E
- LDA Enemy_State,X
% I3 o9 R4 {8 T! `0 g* ~# ]. Y - BEQ Bullet_Track_Enemy_Check_Continue
# b' e- q4 o7 g - LDA Enemy_Blood,X
7 x1 _0 A* i8 x) M+ C - BMI Bullet_Track_Enemy_Check_Continue8 p) D, O; f# ~. t. F) x
- 3 Q+ G0 m9 G: I, `9 @" x2 `
- LDX Loop_Index_I
+ o, Z% d9 x' @, C - LDA Track_Enemy_Index,X
: u' {! S& m& x9 s/ Z4 P - CMP #$FF! Y9 {3 v1 M4 I) d3 x) v: z, l, E
- BEQ Bullet_Track_Enemy_Init3 U2 Y! L! n! M+ ?$ @4 E
-
$ G0 V7 j4 M! {5 Q) L) q5 p - Bullet_Track_Enemy_Init:
|% V2 F/ Q. t! |0 I+ x - LDA Loop_Index_J V5 {8 t: m( ?' Q" P: H" \
- STA Track_Enemy_Index,X ;nTrack[i] = j;& G' {& l: s3 u( h
- ) m3 `, Y$ ~+ y9 S/ V& c
- STA nEnemyIndex8 A. b# O, Z- J* {
- INC nEnemyIndex ;nEnemyIndex = j + 1;5 H, |0 `8 G7 m
- RTS ;break;$ `# G* ]' X1 C2 D0 ?, g: O8 L( D
3 Z. `8 z2 m# M# a/ S, i- Bullet_Track_Enemy_Check_Continue:
. ~9 w# J, ?( P% ^# \9 G3 \: U% b - LDX Loop_Index_J
( e, y; Y6 b( [) p! n( l2 q: t - INX ;j++! `- F" n% i6 |1 ~5 ]- T. E& j1 J
- CPX Enemy_Index_End( v8 X) y* O+ G# G+ n* ~
- BEQ Bullet_Track_Enemy_Check6 Z8 l/ X& P0 U0 y2 Y& p
- BCC Bullet_Track_Enemy_Check
) I$ \' S$ s( [+ K7 V( R7 g l+ H - Bullet_Track_Enemy_End:; s( K- {7 {3 {6 z) m& o# v; w
- RTS; r; h2 O8 h3 G1 E
* y7 s& x6 ]1 p. @# \- Track_Enemy:1 [% {% P+ M: l5 a
- LDX #$0F
1 x' s+ a; c0 o+ [- v* x0 l3 j - Track_Enemy_Begin:4 I6 R% g* g' Y5 L) y
- LDA Bullet_Icon,X6 O' [, R/ p1 F* l( \7 {2 J
- BEQ Track_Enemy_Continue
8 s, Y8 K; U/ ~+ |+ T. k! B- V - LDA Bullet_State,X; N3 Q, H* K+ l2 a
- CMP #$01
/ L9 t1 }/ x0 e8 k - BNE Track_Enemy_Continue ]( F4 k$ \, ^) H
-
$ q; t9 E5 q# [: c4 q [ - JSR Track_Enemy_Process
: |& [, R4 u& b) J0 \; L - 5 t$ t$ i" G% G% v% Q# E
- Track_Enemy_Continue:
, G: |$ U+ P* O& Z* m) o' H+ A; S - DEX
2 L6 q! x5 H# g - BPL Track_Enemy_Begin1 q1 `' ?, ~ \+ X; G' }6 m; k
- RTS* j, E; V a" w9 b/ U$ k
' W7 @# X% [4 q0 y( I8 p8 J- ;普通关卡) U6 J. A1 R' J+ P9 O* D
- Track_Enemy_Process:5 f! L. A- V* n! y2 C
- LDA Track_Enemy_Index,X
3 S# y' n0 s9 h% ?- ^4 A - CMP Enemy_Index
2 u' u- e' E: Z8 L, H - BNE Track_Enemy_End
8 b: F) g! O$ a& g0 V - LDY Enemy_Index( o: ` h) i2 O, L1 d9 v& ]
- JSR Track_Enemy_Y
2 m/ m8 x, l; _- } - LDY Enemy_Index: x2 j' W, F8 j2 L4 q3 N. f5 d
- JSR Track_Enemy_X
3 Y6 }* H3 U, a. J- V1 S - Track_Enemy_End:
& R; m7 ^/ O0 I3 Y' o - RTS
( }0 L. _" h. P/ I8 p -
o! b" Y5 f- C6 T - Track_Enemy_Y:
/ K# A6 { |' [! ~* H" K) i, ~9 | - SEC
" m; I' Y9 @1 \/ Y, R1 c! l: f - LDA Bullet_Y_Pos,X
& \, A/ r. w3 X! w. { - SBC Enemy_Y_Pos,Y
; b( l) K! d- B9 } @) {5 I - BEQ Track_Enemy_Y_Equal- P( A0 A* ?* f5 m; \/ n6 X8 [
- BCS Track_Enemy_Y_Greater I; S0 W0 a0 g1 D5 B, ]
- 8 p: v8 Y: O/ n1 \8 x
- Track_Enemy_Y_Less: ;子弹Y < 敌人Y# j! Y% x$ U6 I/ ]* _" K5 _' u% Y5 m3 o
- CMP #$FC
! V. u2 R# {( |( d; M4 r3 }) @; n+ I9 K - BCC L1_1
) ?0 c, {+ z& |& m' F$ w - CMP #$FE
- J: a; x; E( A - BCC L1_2
/ Z+ f2 a3 q$ d. f - LDA #$00
1 A" N4 K# \% Z+ Y: U5 d+ j) t3 q y: W - STA Bullet_Y_Speed,X
4 Z: t4 c) L; W - RTS
: C6 s- b. h3 e1 `9 S: v5 G - L1_1: % V: f2 o. c9 m3 z. Y4 _5 ^/ k
- LDA Bullet_Type,X: x8 c0 ~5 I* A; S6 l
- AND #$0F
1 u; P" e! f! \% K. _9 v - TAY
* O$ L: W. ~; a+ E. X! J6 S* W - LDA Bullet_Speed_Data,Y; \$ y. a: t' }6 z1 M( M
- STA Bullet_Y_Speed,X
. g. K% e4 x+ Y! ~ - RTS- j; b+ F8 S$ P8 T
7 M% T. y% O. X% ^2 K5 z- L1_2:
( U$ n, M8 |3 V - STA Data_buffer
d) u/ Z: ~5 `8 `0 x# @' O - LDA #$00
/ p9 I$ m, K" R j/ M2 H% i - STA Data_buffer
8 q6 M& Y, [8 N% U, u% j+ v+ } - LSR& T; N1 R, h O. V! a
- STA Bullet_Y_Speed,X
8 s0 u; w. e1 r: q - RTS
. m- W3 E- @. t6 o
3 G0 k- E* l. a F( g7 ]- Track_Enemy_Y_Greater: ;子弹Y > 敌人Y
4 L8 d- z* T, c/ E* Y& K - CMP #$04
* _! c! d# `9 z" N" C0 p& c/ ^ - BCS L2_1
, {7 @% E/ v$ F/ o - CMP #$04
* w0 p+ S- k C - BCS L2_20 R( U3 s+ B, ^) O! V- X
- LDA #$00" ]) r6 x+ q# i; _" ?* D, j+ d
- STA Bullet_Y_Speed,X
" r- j$ ^$ ]) t% p {. ? - RTS' ^: U8 g8 Z1 D9 E1 _
- . Z9 u6 g; Y s) ?
- L2_1:. q+ Y ]( v( i) y2 R$ h/ n
- LDA Bullet_Type,X
6 w) u- ]: S2 P - AND #$0F
2 {* H& _/ @" x+ m - TAY$ ?( S, _" f9 `
- LDA #$00' k8 o0 _1 L+ D) E6 C* m" o$ Q
- SBC Bullet_Speed_Data,Y
6 D1 N7 r4 j0 p4 ?4 h/ l% } - STA Bullet_Y_Speed,X E+ Z: x2 I, D' t( J9 }& @, F9 H1 g
- RTS
+ F& A) w3 i) l8 A - ' u3 {) k4 r8 c9 |( s5 ~$ _
- L2_2:
* T' \/ d( u% M - LSR' R# Y- T& K9 X! n% `- e3 f' Z
- STA Data_buffer k- W2 G5 b' |+ M
- LDA #$00( W$ \- C8 b* K; s
- SBC Data_buffer t; e I( R" N) S$ t) L
- STA Bullet_Y_Speed,X/ m$ |8 }$ D+ ?+ `" m
- RTS
9 W' u4 V% w) X' a' V3 l; F -
; o$ Y, I. m$ v( K) B+ A+ t - Track_Enemy_Y_Equal: ;子弹Y == 敌人Y
3 K) l3 {1 W) d3 p - LDA #$006 F3 s% | r6 S: H0 W3 a6 d* J* @
- STA Bullet_Y_Speed,X
4 n+ v/ c0 N6 V; P* d - RTS& T2 O& O2 Z) _6 k0 u7 e3 A3 G+ p
-
% \. U9 L4 M C) x/ M - Track_Enemy_X:
0 k* [ u1 }" @; o$ M% w+ ~' T - SEC
) E! @: Q! R9 j1 F8 _* x7 W6 H5 T - LDA Bullet_X_Pos,X
( o- e; z7 V( M - SBC Enemy_X_Pos,Y
6 ]1 h& e8 c* Q% {5 | - BEQ Track_Enemy_X_Equal ;子弹X == 敌人X, P: y F* e |" m( L: x5 y$ Z
- BCS Track_Enemy_X_Greater ;子弹在敌人下方
+ }" J8 F' p. v( S) A& {8 i -
: ? ~ Z2 @* ]* W! N- y' a - Track_Enemy_X_Less: ;子弹X < 敌人X) p7 B( V1 k0 g
- CMP #$FC
4 T+ i( Y9 M8 c5 C - BCC L3_14 ?; W! }2 b$ U. u/ x( ]
- CMP #$FE8 x3 e- N* I/ o7 ?
- BCC L3_2
2 _& c) p+ D( s% f0 U$ x - LDA #$00
7 M# @2 U- @* B& `2 y8 k7 i% y. d `: ` - STA Bullet_X_Speed,X/ x8 Q8 x3 s' \/ Z, H1 P% s& _
- RTS# c4 C" R9 S" F. U4 W; P6 T' J
- L3_1: $ O1 U3 Z7 R1 A. B' }
- LDA Bullet_Type,X
4 r" \0 }7 h# p3 k2 P2 u - AND #$0F5 ~5 j+ Y. n6 j$ I* v+ R( s
- TAY
& ?& d7 A c" u1 X - LDA Bullet_Speed_Data,Y( U1 k$ N1 ]# ]/ I' P
- STA Bullet_X_Speed,X
) q( B' F4 ^: u& |/ W) H - RTS* ~( ?! R4 z1 L% ?+ ?- p
- L3_2:
8 e J2 o& _$ t5 t - STA Data_buffer
1 f2 _( s( ?8 Y. o: h; Y0 c+ m) Y - LDA #$00
5 Q: a+ r* V" o - STA Data_buffer) X! ?( y6 O: k) h- `
- LSR
1 w/ n. h6 V U: m- T; f+ h, N - STA Bullet_X_Speed,X
# S* Y$ s7 Q, N) o. @0 O - RTS
' y% K* [1 y1 h1 K! P6 ^9 k' t - $ C; `1 g1 O% r D2 q1 y& I3 n( Y
- Track_Enemy_X_Greater: ;子弹X > 敌人X( S/ Z% c1 u9 B% ~5 K$ ~* `1 m
- CMP #$04
9 O! |. W5 o' }. R5 z - BCS L4_1' k# H, i% K7 @$ x3 Y
- CMP #$02
3 `/ y3 |. ~6 Y# W6 D - BCS L4_2, E: A9 i6 O# K! \$ w% ^# O
- LDA #$00
; ?; s. Z5 T x: r' |7 f - STA Bullet_X_Speed,X
& G _! @# ^5 @' t - RTS7 c5 R$ D/ y1 y6 o% z/ A
-
, f% I! J, G2 A8 F+ f% \ - L4_1: 9 z: }, k! A' Q, ~% r
- LDA Bullet_Type,X+ V( E: q+ V7 w* z* l
- AND #$0F {8 |4 s) L5 I9 [& X# J3 P1 M: m
- TAY
* u! I& m; Y( b2 ` d8 D% M- n - LDA #$002 w% I- i5 H+ h! o1 ^4 Z. D7 {
- SBC Bullet_Speed_Data,Y+ \. O) C: F3 Q! |. Q4 l7 e
- STA Bullet_X_Speed,X
# ^% J9 ~7 n- L9 i2 N A - RTS9 A3 F, z2 ]* Q6 T
- L4_2: , h3 |2 a3 r: S. C: ?) T
- LSR
) k3 V0 L3 }8 s6 b- Z - STA Data_buffer
) A, u- x/ k" T - LDA #$00( @& @ e! q' U) Q9 [* p, I" O
- SBC Data_buffer
- r; n- h* V0 `" M5 ~ F8 F o9 s - STA Bullet_X_Speed,X
* u2 ~% X& ?" K' W. w4 s E" R( H - RTS
/ {' H) j; F( n - 4 \, A% i% ^. b- S
- Track_Enemy_X_Equal: ;子弹X == 敌人X
, z1 P3 l2 ?) z4 y! R" _; y- ] - LDA #$000 Y w6 Q- N# `3 b
- STA Bullet_X_Speed,X
) c) R. T' j6 | - RTS
6 z& g3 V* x b! V6 G3 ^: @ - 6 m3 q& P# E3 N+ y* Y u' u/ D5 j
- Bullet_Speed_Data:
" Y! y0 o2 z* b; C7 `* G) Q - .DB $00,$03,$03,$02,$03,$03
2 H1 }! L& W8 O2 I+ L -
: a M# p# p4 l# u/ w - ;2, 4关
* x& v% Q6 z; t$ |! ] - Track_Enemy_Ex:( G) R; q8 _( B& D }
- LDX #$0F
6 l( D, U3 E- Q, k J$ \& p4 L3 ~ - Track_Enemy_Ex_Begin:
1 g# D+ }0 v/ }7 A - ( V- m: ?* D4 ]' O X' Q4 |
- LDA Bullet_State,X
( D4 f `% o- K& ~- f - CMP #$01
3 W8 L$ H' N+ P; |; \) x- h - BNE Track_Enemy_Ex_Continue7 _% t& }6 Q& }4 T7 I0 _) t9 I
-
1 L; W) }2 i7 a( Q1 Y - LDA Track_Enemy_Index,X
8 \" B+ i8 }: ^- G2 r - CMP Enemy_Index3 X4 v2 m6 A8 A1 p& U
- BNE Track_Enemy_Ex_Continue ;匹配追踪目标$ F: R( @1 P) a3 w- d
- $ Q5 ^4 U3 ^; [% v9 F. s6 R ^
- LDY Enemy_Index
( Y2 ^6 M8 f) {1 H8 X! o) Y - JSR Track_Enemy_Ex_X; P9 s3 G/ ]" l: M3 m4 Q$ I
- % l# i* R4 o2 u. ^# N, [
- Track_Enemy_Ex_Continue:) X; F- _' m/ C5 l
- DEX* \+ Y6 m% R7 z# P8 V2 L! {, c
- BPL Track_Enemy_Ex_Begin' Q4 ]! m4 c O6 l2 x
- Track_Enemy_Ex_End:1 l: P6 H! B2 T- K2 w
- RTS
0 I: _/ J* w, O - 1 D- Q: V* k( S* q* j$ r8 a ^
- Track_Enemy_Ex_X:
, d5 Z9 H2 `6 O0 C* ]9 @ - ;LDA Bullet_Z_Pos,X# \% A2 ?! l$ y
- ;CMP #$04* ]- }0 ~) F! S) k4 x6 d
- ;BCC Track_Enemy_Ex_X_End3 D0 g, M* m- b9 ^% g
- SEC" B- D+ W. ]0 }! M- d! I4 ~
- LDA Bullet_X_Pos,X* y. \9 F& E& H1 }2 d- T9 S
- SBC Enemy_X_Pos,Y
7 N3 s3 a: U! D I% r( K - BCS Track_Enemy_Ex_X_Greater& P( Q* i3 w7 s( W
-
" B4 W5 }" ?# x - Track_Enemy_Ex_X_Less: ;子弹X < 敌人X( M7 b2 Z w+ ~: C; d: I# h
- CMP #$FD% Q5 B. M9 y6 E
- BCS Track_Enemy_Ex_X_Less_End
7 T+ ^1 O3 C/ P' f' E* Y* J9 J - LDA $6020,X( S# k( t' B; T$ k
- CMP #$2A2 I7 |" o% X5 {
- BEQ Track_Enemy_Ex_X_Less_L17 m) t8 g: c+ i( C
- LDA Bullet_Z_Pos,X
7 `3 a# Z3 _) ^4 ~ I- }3 i4 E - LSR3 C0 S: P0 t" s) }" E
- TAY: y8 q8 j+ w4 @
- LDA Bullet_Speed_Data_Ex_R,Y
- t6 ?" o* }# Z9 a - STA Bullet_X_Speed,X0 O/ `1 C0 c" C+ K& x+ R
- RTS
+ R* ?) `" y* r" V* @; d( T( U% y - Track_Enemy_Ex_X_Less_L1:
5 n5 Q0 ^. b- }. b' ]
6 T0 O8 v! J- [: f- LDA Bullet_Z_Pos,X# E6 Q6 v/ N6 \4 F, t
- LSR6 H, E7 k& q5 g" O! _7 ]
- LSR
5 c3 l" M5 w& S - TAY
4 u# F" S7 w! i) ?* y - LDA Bullet_Speed_Data_Ex,Y
5 S1 f/ I4 U( M1 B9 n3 s# R& C. n- s - STA Bullet_X_Speed,X
2 C C# P- [) t# i) o - RTS* ~! _7 T9 y& s, e+ D5 E
- * N2 ~) y: P# A8 M' z8 S7 L
- Track_Enemy_Ex_X_Less_End:
/ N4 F; u8 j* {2 [( i3 b0 b - RTS
+ z: b' e. J6 ~1 |, W" K# I - 4 P5 \7 t9 A( m3 P9 r- y3 s
- Track_Enemy_Ex_X_Greater: ;子弹X > 敌人X7 V. [6 H6 P- O0 N5 J! M! \3 H
- CMP #$03
" }3 J( G; E# K, T" l {, L M6 ] - BCC Track_Enemy_Ex_X_End: W& d& D1 Q6 p
- LDA $6020,X
% ~! O$ x j4 v( q3 Z" N/ o9 C - CMP #$2A
9 a+ X5 X/ }* L4 {1 r2 j - BEQ Track_Enemy_Ex_X_Greater_L1
6 ~1 o; ^0 l4 k# } - LDA Bullet_Z_Pos,X% Z+ G8 U/ h/ w c+ f8 v
- LSR
# U1 X8 u Y! ^9 K! Y - TAY( Y9 \% C2 s, a$ W9 F+ U
- LDA #$00& L% u, w' i5 ?' t, ]) L
- SEC+ }9 J# @6 c+ f ~6 p( N
- SBC Bullet_Speed_Data_Ex_R,Y) E! Y9 v; \) F2 b0 w
- STA Bullet_X_Speed,X
S) B4 ], E \- [0 Y# T& }5 k0 Y - RTS
+ I4 U! u4 K( A5 C' f W% \! g0 m - 7 z- C4 t( n& B1 _
- Track_Enemy_Ex_X_Greater_L15 O1 C( Y4 y( g# ]! P# K% F
- LDA Bullet_Z_Pos,X
( {. G f. k1 _' v% ~. D - LSR
, d1 ^+ d6 ], W% }8 M8 P A - LSR3 e; H% P- Z. k. I- Y' e" C8 m
- TAY ^+ o1 m8 O" m: f* Q
- LDA #$00
; N9 u; F/ v& G, O. n+ | - SEC
% r$ R1 D+ u* k& L h' c6 _) q5 { - SBC Bullet_Speed_Data_Ex,Y; g. ~- J2 _, |
- STA Bullet_X_Speed,X
, z* O$ g- L3 @2 w - RTS) s( h1 C0 P" F- L4 Q5 g& t
- , Q; |" C3 ?- }4 {5 Z
- Track_Enemy_Ex_X_End:1 Z' m. q3 j# J( T) s8 E0 s9 E
- RTS/ E- h8 a- U( G' {' |' Y. W, g
-
4 E/ j9 q* u, N. y. M1 B8 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)0 Z& D2 t. d2 v) g5 i
- ;Bullet_Direction = $0378 ;L子弹方向 40左下 C0左上 80右上
$ j" @6 }7 Y: f" t1 C: k - Bullet_Tract_Direction:+ N. I0 ~* W' o" q' c) ~( q& @
- LDA Bullet_Icon,X3 V2 [7 C% O. D
- CMP #$23- k) _" i! }. E R4 G
- BCC Bullet_Tract_Direction_End3 ~: r3 E9 D Y R+ i
- 7 Q9 ^0 e) u% P4 ^ {% f/ N
- ; X != 05 ?* ^! y1 I) F/ {7 f
- LDA Bullet_X_Speed,X0 b/ t9 G3 v% I& G0 F5 w6 j. X" Z% s
- BEQ Bullet_Direction_V! j' Y1 U) w2 S% i; E: [8 } B) o
-
3 ] a, l5 {+ O& }7 D' e0 f* d - LDA Bullet_Y_Speed,X: J$ c3 A7 B+ X
- BEQ Bullet_Direction_H! q1 S5 g7 e1 G
-
. v0 a# V: Y* T; E, ~/ @* S - LDA Bullet_X_Speed,X
+ e6 M. U- \: x: e' c$ v8 a - BPL Bullet_Tract_Direction_Right
' X5 h1 v( Q7 R - Bullet_Tract_Direction_Left:
1 M! |* n4 c# F; z% V0 y - LDA Bullet_Y_Speed,X1 A) Y# U a# W/ ]) c; I$ ]
- BMI Bullet_Direction_Left_Top
5 k3 n) ^0 }7 x' i( M: f - BPL Bullet_Direction_Left_Down
. h3 V1 Q% ?" Z2 G' D2 G0 ^ - Bullet_Tract_Direction_Right:7 F9 I! C' X0 p/ u
- LDA Bullet_Y_Speed,X+ c, _/ n* i* C. {4 N
- BMI Bullet_Direction_Right_Top
# U2 O4 G' A- @ - BPL Bullet_Direction_Right_Down
- V; j( X3 f: v. w+ o2 z - Bullet_Tract_Direction_End:. ^/ s/ w6 y) x8 e0 ?1 ~
- RTS. v7 U5 m$ f# L7 Q
- + g& A6 Z) j. i- i3 h( z* R* k9 N
- Bullet_Direction_Left_Top:
8 V- ] s- z# z; m Y( g2 ^) O - LDA #$25
6 d3 {5 g- l' v* r/ }2 j' W - STA Bullet_Icon,X
4 a- E2 R- W# _# [ - LDA #$C0+ Z4 d8 c' v( L. p3 z2 o' ]
- STA Bullet_Direction,X* n2 s1 M6 ^5 e
- RTS
: W. V; n+ X! r3 b - 7 F6 m, x1 \7 v K
- Bullet_Direction_Left_Down:; {. {5 J1 {/ q+ a* X! O8 ^3 Z
- LDA #$251 G Z& I3 N7 v
- STA Bullet_Icon,X4 Q. ~, N8 {+ T; H
- LDA #$40
6 r# f2 t8 M; j$ [2 Y - STA Bullet_Direction,X
% O$ t$ M! d0 X1 X: t - RTS& J, k. P+ s; o F4 N1 m
% D2 s' _2 G& |; T- Bullet_Direction_Right_Top:
1 z5 f5 }5 R/ w, m3 I9 T T - LDA #$25
# N* Q' X9 f1 d2 m( p; d4 g6 _ - STA Bullet_Icon,X0 K2 u% u' G4 Q
- LDA #$80
7 s" m2 L. H$ ~/ P - STA Bullet_Direction,X [3 y; |9 ^) J0 C$ ~# \
- RTS( a/ z8 @- w0 ^! L/ X
- . b |7 t% t* _: g
- Bullet_Direction_Right_Down:! h" w, H* u( p
- LDA #$25
- b' |3 _6 L' o' a- y2 S - STA Bullet_Icon,X
3 r' N O: `$ W5 z! d* M - LDA #$00
7 a) @1 @* ~1 w! k/ q2 B - STA Bullet_Direction,X
5 J" Z: Q4 b X8 R - RTS$ l7 n9 S# r; Z# f# _# b& j
) B# C3 g: d. R& i+ E- Bullet_Direction_H:
4 ~& i) S8 J% H9 i& a - LDA #$24
' @6 j0 W+ k5 t - STA Bullet_Icon,X8 N) e; x* H3 ?: |1 x0 t
- LDA #$00
, Q: R0 N9 c% K# H - STA Bullet_Direction,X d( }/ k7 j1 v- T }
- RTS) v9 }, R* `7 r" y
% r8 g$ U" _7 j7 M$ ]- Bullet_Direction_V:
% g5 G- v; R/ x. [1 ` - LDA #$23
6 c( V# W# y8 h P& s - STA Bullet_Icon,X
* A2 H: Q5 q# R7 Y( r6 G - LDA #$00/ ?9 h+ s- O4 e5 T0 t
- STA Bullet_Direction,X7 x9 z5 t1 ^4 P3 J/ O0 W. o& `
- RTS
- T6 J4 ~% }: O! ?' I" m k' z: u6 X
1 @2 N0 m2 S; F2 @4 S- Bullet_Speed_Data_Ex:( @/ `) z+ O5 X
- .DB $01,$01,$02,$02,$02,$03,$03,$04,$04,$045 D* k; `3 i0 c6 H9 c! \
- y6 V9 c" O! m H
- Bullet_Speed_Data_Ex_R:6 N; ^' t4 @6 G. z8 \4 W; i8 o$ D
- .DB $02,$02,$03,$03,$04,$05,$06,$07,$08,$08; r& z. r* G5 L3 \: i) g
-
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