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[FC][魂斗罗][J][追踪弹]
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: Q% ?8 ]2 r2 x4 L时间:2023.04.302 s. d6 E e. n9 _; M* o
作者:FlameCyclone7 K6 y: n8 }6 M2 W5 L: }
内容:
, j' @ H8 I4 L/ K 1. 所有子弹追踪敌人% h5 b9 }( I: V2 G3 M3 Q
2. 选择键切换武器9 t) S4 L' Z1 Z0 h. z/ B7 v/ 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7 I @+ Y* V$ n+ v
, |& _* M2 {! g$ H; ^6 I4 H
flamecyclone.ys168.com# D. y0 ]& l/ |9 W4 P3 K9 j

0 F' X' N/ q3 U/ z7 p- Bullet_State = $0438 ;子弹状态 0:不存在 1:存在 2:销毁. }8 R6 g3 g; d5 Q& i9 G6 @- _
- Bullet_Type = $0388 ;子弹类型 0: 无 1:普通 2:M 3:F 4:S 5:L
/ ?( S* U' `) \0 P# [" P. | - 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)# v% ~# O T) A: |1 A
( h* P3 N7 R2 {( G9 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)
2 @3 Y# p7 [) E. w5 @+ J - Bullet_Direction = $0378 ;L子弹方向 40左下 C0左上 80右上
/ E5 e" D" R4 ~; Q. Y) x& m$ J
, r( ?7 e! x: X# i9 @0 W h- Track_Enemy_Index = $60006 h7 ?4 X* M5 R- }* E A6 h* Y7 [
- Enemy_Index_Begin = $6010; g! D& f4 R! y/ h' P
- Enemy_Index_End = $6011
; x3 r3 n0 ?$ [! G' H
1 \1 \# [, c& j2 a2 \- Loop_Index_I = $6012
% `0 J4 X* ~- Y - Loop_Index_J = $6013
* ]) x3 S( W4 d - nEnemyIndex = $60144 |2 ~+ ~% F5 |$ p1 D2 u# t
- Data_buffer = $60158 K& }% S1 s4 J' J, k! I
Q6 ^* y+ d; c0 Q+ v8 E: u6 v. V- Bullet_Y_Pos = $03B8 ;子弹垂直坐标7 o! @$ K' `+ K/ B4 {
- Bullet_X_Pos = $03C8 ;子弹水平坐标" i( j, I8 m _. x0 |% h* B8 l! B: m
- Bullet_Y_Speed = $03F8 ;子弹垂直速度! ^0 x8 Q% h" h2 {0 ^6 T {. z h
- Bullet_X_Speed = $0408 ;子弹水平速度* {" S9 @0 P" {" p
- Bullet_Z_Pos = $0418 ;子弹Z坐标
+ d9 T% k1 o& F7 h" D) B. r - Bullet_Owner = $0448 ;子弹所有者 0: 1P 2: 2P
x5 U2 P5 a9 C. {9 |
0 B( D0 u) o1 O R0 a) |- Enemy_State = $04B8 ;敌人状态$04B8 5:弹起爆炸 0:不存在 6:下落 7:原地爆炸$ U3 j/ B* O- B8 F/ |; I) o% G Q
- Enemy_Blood = $0598 ;敌人血量
+ _. m3 ]1 f: r% T7 v: [ - Enemy_Type_Addr = $0528 ;敌人类型
, ]0 V! s/ r" @0 V& f: ?0 T - Enemy_Blood_Addr = $0578 ;敌人血量5 [% J3 x, ~% k$ P, z
- Enemy_Y_Pos = $0324 ;敌人垂直坐标& ]. g0 K4 n( j/ ~8 {/ _
- Enemy_X_Pos = $033E ;敌人水平坐标8 u2 Y3 Y$ L! j2 G2 [
- Enemy_Y_Speed = $04E8 ;敌人垂直速度
- O' X `; ]8 M - Bullet_Alive_State = $04B8 ;敌人状态 5:弹起爆炸 0:不存在 6:下落 7:原地爆炸
1 |% n5 E" j$ g7 P - 3 G, h3 M; a: I$ I% D4 z% `
- Enemy_Index = $83 ;. ?. d) T$ G$ ^: J" U0 ~
- Time_Count = $1A( b4 ^6 Z- M3 l7 Y7 C% j9 Q
- Track_Bullet_Speed = $07 ;分配子弹追踪敌人频率6 q* \' j$ X, `5 Q- g
- Track_Enemy_Speed = $03 ;子弹变向追踪敌人频率 e. t) @6 a Q* X" x6 w9 c. z( Z) R
# R X# E5 ^/ i; \9 f- ) ~4 I3 m. i" b8 I4 k
- .ORG $61004 e0 w/ H- b' e5 N
- Process_Begin:7 q' c8 U# L3 K- j1 E( ]( ~0 {6 Z
- JSR Enemy_Check
`. g7 A4 g2 }2 o - JSR Track_Enemy_Check( Z; ~* R3 O* h
- Process_End:
! P& {3 G; I7 @$ T8 N+ Y. O - JMP $E54F
8 }" v J/ v: Z
! w) ^& ^" j7 k. M* C9 D$ N- Enemy_Check:& w+ a! m6 K$ }$ n$ Z ^
- LDA Time_Count
; V1 O/ C9 H/ }$ d - AND #Track_Bullet_Speed( F0 N+ `0 `. Z' B; `9 D
- CMP #Track_Bullet_Speed
D' P: {4 V2 b7 v - BNE Enemy_Check_End& K" E& V9 ^0 \4 w+ O4 D @# ]
- LDX #$0F# w* h' ^1 u. c5 B
- Enemy_Check_Begin:$ i4 y3 ~) b, t V
- LDA Enemy_State,X' R" d1 Y7 U9 x) n0 U
- BEQ Enemy_Check_Continue
7 n5 x+ B; l* e. Z - STX Enemy_Index
# E/ c$ X5 J4 a1 `: Y+ ~ - JSR Find_Begin_Enemy
( ]' i# t- g7 |$ d# `$ n - JSR Find_End_Enemy' I/ h* V, {" Q7 U; a! X4 V) j
- JSR Bullet_Track7 ~( Z! H! P% E R5 V" @; G2 H. n2 |; @
-
: W- n1 h/ f) N2 b2 L2 _( E" w - LDX Enemy_Index
( Y& Z, _4 L2 [+ N3 I/ P5 n: q - Enemy_Check_Continue:
7 J1 r- J. G7 { g4 K - DEX
/ ^0 |: {* E2 T. F5 k) I' V - BPL Enemy_Check_Begin! x6 ?3 i( c) M! @4 o$ ?
- Enemy_Check_End:; k' u, H! k- V6 \1 r! J6 F
- RTS0 F! n% F4 e/ h& B# E5 j% V1 }2 f& @
- 0 a' {9 c: U/ d
- Track_Enemy_Check:' x; X3 D! [: m/ @* _+ {
- LDA Time_Count
3 n/ [( X( p) n+ H - AND #Track_Enemy_Speed
# F d% i/ Q) q2 D9 K - CMP #Track_Enemy_Speed' t# E5 ]3 A1 ^) A
- BNE Track_Enemy_Check_End+ z$ K! y7 I2 H* g+ M- U6 H
- LDX #$0F
?" @% n$ k8 e" f - Track_Enemy_Check_Begin:% n! F Z# F( g
- LDA Enemy_State,X o5 t$ h9 h; e9 W" ^) K
- BEQ Track_Enemy_Check_Continue
' c- }2 j5 O8 Q, S0 T - STX Enemy_Index% V6 F) F# W4 ~; P4 m2 _* ]) t8 e
-
. j& I) {; b5 e$ S6 C - LDA $40
5 \5 R: {5 e1 J8 Y, S# k* p - LSR
3 f* @- h3 `% |+ M' w - BCC Track_Enemy_Check_Begin_L1
# M% \0 ^' r; g: A3 u* ] - " h( }0 Y% E( u
- JSR Track_Enemy_Ex ;2, 4
/ x6 q1 N8 D6 E8 [: n, r - LDA #$000 [' m, P# j; N; Z% N$ W
- BEQ Track_Enemy_Check_Begin_L2) a5 K6 M# h2 D! I; m* r
-
6 F+ D& g4 w( g7 J/ u - Track_Enemy_Check_Begin_L1:
& S" K& W% ^8 ~* v: Q6 n% l -
7 j U5 M5 O) ~# _( O - JSR Track_Enemy g4 t% A; Q8 x5 q7 H# ^
: C; R0 W4 h' M' M; w8 n( C- Track_Enemy_Check_Begin_L2:+ F- K# N$ s/ W
- # g: `( s' ?9 Q. }, W% H8 l
- LDX Enemy_Index
$ Y: e s1 d/ D4 R' l& S3 u y - Track_Enemy_Check_Continue:
! x [" n8 K6 E' x: Q - DEX7 d0 `; _* a5 Z; r& d5 o
- BPL Track_Enemy_Check_Begin8 w3 W! f$ [) }, `& y
- Track_Enemy_Check_End:, o& r% @; \ q5 @/ {
- RTS6 M8 X6 Y" t8 u' ?# f
- % Z. v6 D/ ~. U+ r
0 B3 a- d. k3 D# S- ;查找第一个敌人
3 P8 ~1 f9 Y) I/ I a - Find_Begin_Enemy:
8 P4 G/ J5 L0 i9 G, W - LDX #$00
z" `3 b2 ^8 K) M) O - Find_Begin_Enemy_Check:' x* F8 ~1 O' C: W# E
- LDA Enemy_State,X# q6 V2 l& Y. J9 y" p) ~* B
- BEQ Find_Begin_Enemy_Check_Continue8 F, w! i5 H% @6 n. n+ U
- LDA Enemy_Blood,X, B! ~. i0 |! Q6 l0 ^ M
- BMI Find_Begin_Enemy_Check_Continue+ i* p% m. ]) t }' @$ F
- BNE Find_Begin_Enemy_End! ~+ r. n5 J$ g2 v( ?
- / S1 `% ~& J" t$ N
- Find_Begin_Enemy_Check_Continue:
- r% \+ t7 o' J$ D% O) W - INX
$ F+ D& O" v; z; r) u0 d - CPX #$10
5 ?: P/ o* R2 J% r0 I% D9 | - BCC Find_Begin_Enemy_Check( C: {! n1 p4 U# a5 p$ g5 C1 S% Y( K
- Find_Begin_Enemy_End:" X0 F7 k$ y7 Y/ M/ z) ?6 `+ a: M
- STX Enemy_Index_Begin
6 l! Y! r) U6 n4 E3 `9 { - RTS
( z. u; b, }& E8 s7 M" P6 e, \# } - + w. q' I6 T! \. a
- ;查找最后一个敌人
% q6 t* Q5 j. n% A/ t - Find_End_Enemy:
. g/ p- @9 b( a( n9 m4 _ - LDX #$0F6 b9 q, H+ v, S' g5 v
- Find_End_Enemy_Check:
+ [$ T D% o% p7 z3 X, F- F5 h - LDA Enemy_State,X
- B, f8 a2 V% g6 L- x1 u& K - BEQ Find_End_Enemy_Check_Continue$ s. y/ ?, O$ D' {2 s2 }4 c
- LDA Enemy_Blood,X) {( P7 d ]4 K; c. Z/ b
- BMI Find_End_Enemy_Check_Continue
1 o' c5 U- o9 W: N1 X - BNE Find_End_Enemy_End# o" B' S. F9 I
-
4 u+ m. A$ P' a: H- ? - Find_End_Enemy_Check_Continue:
: o9 |) ?& N4 y: \" K1 | - DEX+ h$ M$ ]3 G; D
- BPL Find_End_Enemy_Check5 C9 `& I3 f0 h# o6 d4 ]" _/ ^0 Q
- Find_End_Enemy_End:
* q( b% s- N( Z - STX Enemy_Index_End, C) x4 m1 s8 p1 J
- RTS e N$ D! F# z
3 S" S+ k! a _5 k- ;子弹追踪
1 W( Y7 D8 Y3 O1 M% \1 ? - Bullet_Track:
& P5 J8 D4 k0 q4 @ - LDA Enemy_Index_Begin
, b1 |* E" s- J& o - STA nEnemyIndex ; int nEnemyIndex = nEnemyIndexBegin;
. I; ^1 t/ u2 T) f$ x - LDX #$00 8 E4 ^) g! _( A d0 E
- Bullet_Track_Check: ;for (int i = 0; i < _countof(nBullet); i++): U0 R- ?* p+ H( m i
- LDA Bullet_State,X* {! B5 K: T2 ?/ X. q/ P2 i8 N
- BEQ Bullet_Track_Check_End ;if (0 == nBullet[i]) continue;
8 E' }; z+ _0 N- {+ ^, K - STX Loop_Index_I, @ |4 z+ t9 J' x! a* I/ k
- , @. N* p5 G& P8 u) n* G) ^$ u
- JSR Bullet_Track_Enemy! J4 x5 j2 ]( N1 v; F$ G R
- JSR Bullet_Tract_Direction
0 J: B3 E' D( c) m5 l M; i - * g2 ]8 Y1 A+ c% [+ ?! e/ o {+ D( \
- ;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; b! h0 R" m) E
- ;if (nEnemyIndex > nEnemyIndexEnd) nEnemyIndex = nEnemyIndexBegin; K$ g, _9 j' ?
- LDA nEnemyIndex
, o8 E( j, u, F" d - CMP Enemy_Index_End
$ r9 ~2 @2 O) F- p; o5 M e! j - BEQ Bullet_Track_Check_Continue P, A# t7 [# U
- BCC Bullet_Track_Check_Continue" T1 B" K3 z2 K& B3 U& H' J! H2 _+ O
- LDA Enemy_Index_Begin" m( v( g9 D1 H1 v3 P2 ]! t; B5 q" r' d
- STA nEnemyIndex! o! M2 e: U2 }& O7 U
- * L1 ^/ u, F* S" U/ ]" s1 r6 j
- Bullet_Track_Check_Continue:
$ o8 c2 `4 Z/ H3 Z$ C8 T - LDX Loop_Index_I/ K0 J1 b! V& F6 ~. |6 u
- Bullet_Track_Check_End:
+ |4 o5 m7 D& A' U. D - INX5 }: [4 H8 b0 w7 o+ y
- CPX #$10
& o1 A ]9 p% z0 ]5 m - BCC Bullet_Track_Check
. K7 Q, L9 j' E9 M2 C/ W' ?5 o. ? - Bullet_Track_End:
. p- w! J, k8 p! }, `, f) b1 I - RTS# |8 X* f; [% X' E1 {5 a7 \
-
/ G7 `7 I7 R6 W; X, `* m - ;给敌人分配子弹
( t4 C, H' Y" M5 G- e - Bullet_Track_Enemy:% V" P$ K. B4 ^& t- j
- LDX nEnemyIndex ; for (int j = nEnemyIndex; j <= nEnemyIndexEnd; j++)+ m$ C0 ~% d3 s* W% Z1 I* _/ ^
- Bullet_Track_Enemy_Check:
8 j0 g4 q, y+ c - STX Loop_Index_J
) ^' g2 t g! H m/ G/ | - 4 U6 A7 \) _% M& c/ S/ I) w* D" o
- ;if (0 != nEnemy[j] && -1 == nTrack[i])
9 ?5 h8 f, O: t% w - LDA Enemy_State,X
/ G* h7 K9 E! m5 y6 c* j, y) { - BEQ Bullet_Track_Enemy_Check_Continue
W6 I7 t2 J% Z - LDA Enemy_Blood,X6 p9 c. s1 A3 I4 m7 N U
- BMI Bullet_Track_Enemy_Check_Continue9 w4 i# l5 e6 @/ Q' o/ ^
- 4 h; d$ u, y; u! L
- LDX Loop_Index_I
: _4 l* `+ F: K% [- S - LDA Track_Enemy_Index,X( a: g C/ j, u8 ?0 e/ \8 _4 N# ?
- CMP #$FF
8 H* I$ |& Z8 S M - BEQ Bullet_Track_Enemy_Init: | z% c6 r: p1 |
-
x; i4 j, B0 w+ ^7 A( ~& k - Bullet_Track_Enemy_Init:$ G) {! S% ]7 D0 m% ]! A: h
- LDA Loop_Index_J1 t, h2 o# g2 t1 o8 m/ R8 A! u9 c
- STA Track_Enemy_Index,X ;nTrack[i] = j;7 S! m, M5 i1 T/ u
- % A ^' _8 Q2 n+ U4 [
- STA nEnemyIndex
% T. [, j- j9 ?7 n3 E' A* } - INC nEnemyIndex ;nEnemyIndex = j + 1;
% l; }* U$ g7 C# K& m - RTS ;break;
/ @; e* G. B! G- r% e: d - : x( |: D5 H. B
- Bullet_Track_Enemy_Check_Continue:
+ B6 z, k/ k! ~ - LDX Loop_Index_J7 j; K- k' r, b# Z2 S# [8 s
- INX ;j++9 N6 V: W x9 k! b# s" Q5 }
- CPX Enemy_Index_End
: v' T4 Y# V2 n3 y$ O1 H - BEQ Bullet_Track_Enemy_Check
' H4 d6 x8 U* H3 B3 G' H - BCC Bullet_Track_Enemy_Check
" U1 K9 a2 L/ g# f& a - Bullet_Track_Enemy_End:' u: m* v5 b( _8 r
- RTS2 q5 c4 j# U3 \6 `
; \ |: z0 B% u- Track_Enemy:* ]( _8 R6 d3 i+ |8 @
- LDX #$0F
1 `0 b- H% A6 p - Track_Enemy_Begin:" ~, m/ \; F& n) V
- LDA Bullet_Icon,X. q3 S, m+ a% o& F) k9 T& p& }
- BEQ Track_Enemy_Continue3 @% ~! O" C, ?3 O$ J1 G
- LDA Bullet_State,X" E& l% D& x& h: s; m1 r
- CMP #$01
8 e9 } t5 |' U% m0 s c* |3 | - BNE Track_Enemy_Continue
7 H* @. _2 i+ M7 B0 f -
, S9 @& {+ s* |7 L4 j0 S- W' G - JSR Track_Enemy_Process
& i, M2 o8 j: N. O -
% W) ?5 z% A3 e. p& S6 C. j" P5 e - Track_Enemy_Continue:+ Q, f4 b9 h: P# P$ N) h
- DEX0 p9 g8 l# N* k# C; O! x
- BPL Track_Enemy_Begin$ ]/ t' t: G. `+ D h
- RTS3 m$ W+ [; ~/ q
- : Z# _* S; i4 H
- ;普通关卡4 T8 @5 a# Y: G5 D, d
- Track_Enemy_Process:
) f. \3 G: X* c% R - LDA Track_Enemy_Index,X0 Z! \. L1 P3 B
- CMP Enemy_Index
& @( Z# T( x/ O4 F: D- J& R - BNE Track_Enemy_End
4 c& J# ]2 o! z7 ^- y c/ W - LDY Enemy_Index$ A2 M- T& H9 t5 X/ z# g+ k
- JSR Track_Enemy_Y# a1 Y5 Q3 | Z, G. U
- LDY Enemy_Index
' i0 a9 v2 I! |6 ]/ T6 ]6 ^ - JSR Track_Enemy_X
& z( O8 U1 h8 c: q E% _ - Track_Enemy_End:
& O( {2 }. k: m) Q6 G - RTS
5 @0 x4 _6 d2 I8 h. ` -
' j2 n; k# C5 [3 B3 W# I% h - Track_Enemy_Y:7 x7 h. {$ ~: v/ ^! S: g
- SEC
, @, k e9 W( K6 N) w: @ - LDA Bullet_Y_Pos,X( o* S' @, f% m) K- s x1 z( G8 m2 B& v
- SBC Enemy_Y_Pos,Y* |: M* i- A* k+ |( @, G, \
- BEQ Track_Enemy_Y_Equal: @( z2 Z2 K3 N* w6 }
- BCS Track_Enemy_Y_Greater
: ?& x: v G. X5 G9 B -
+ I4 o: m: R6 p! \; } - Track_Enemy_Y_Less: ;子弹Y < 敌人Y" X8 v9 n, D! f& K# Y
- CMP #$FC3 }6 n- s, @; G8 D! v1 K% Z
- BCC L1_1
! Y( m% d, q1 Q - CMP #$FE- L, N( ~* f9 y) I; w6 R5 Y- k
- BCC L1_20 @! f+ E% N4 Y# S% n9 D2 U
- LDA #$00$ {" |6 f, Q" Q5 x
- STA Bullet_Y_Speed,X
' N- H/ x$ B. L) j - RTS
; D- O, }# s9 } - L1_1:
% ~, e) w8 V3 ~6 P! w2 U - LDA Bullet_Type,X
2 c: ~# K ~( K4 Y5 o, z: u" f - AND #$0F, n: p: k3 a, w, O" g
- TAY5 h. X* a+ g: I& M1 M4 m# g
- LDA Bullet_Speed_Data,Y4 k1 f8 Z% |) x0 T
- STA Bullet_Y_Speed,X
1 L; k6 t1 n6 U# c5 K. Q6 Z* J9 o - RTS! Y% ]% D! [- ^0 U9 |; w
- 1 f, P4 j! v- y x' w' Y
- L1_2: $ W" \# W: {7 k; F7 n g, d
- STA Data_buffer
/ q1 w8 Y! {0 S - LDA #$00
9 W: C$ G) \$ N2 O) J4 t6 K- s - STA Data_buffer
$ @0 U* d# u; r6 n1 t% C - LSR! z) p: ~7 D# ?9 h8 W- b- \+ m
- STA Bullet_Y_Speed,X; U5 X u4 K1 a8 Y4 r: M
- RTS
& l% T: O2 j1 s' [" }9 k8 U- p - % ] a. Q) N6 }" h' V; o
- Track_Enemy_Y_Greater: ;子弹Y > 敌人Y
7 s1 l8 K9 J$ i - CMP #$04
# O7 m8 ?3 a7 N% A - BCS L2_1
. c, [5 K) s* [! S5 V - CMP #$04
8 Z' G. [. t; Y! V: @( h - BCS L2_2
2 p, T2 c8 R- o0 \ - LDA #$00
% f/ l+ d! z* V' q" l - STA Bullet_Y_Speed,X( l3 B/ t, a3 ^( L# E8 j
- RTS2 j: p. m, F7 I- ?$ x
- - C" o9 R1 ~) T& u. z2 J5 j
- L2_1:
3 G( {7 y+ p& }2 r( e% U4 W, R9 F* d - LDA Bullet_Type,X
# ^8 N. o1 G+ i. N - AND #$0F3 ~- G9 G4 {) w. j
- TAY
* B* s% s; s4 t( W% m" b - LDA #$00
; T% P5 o; v* A' W - SBC Bullet_Speed_Data,Y
1 o& n6 @. L9 M5 }8 c0 { - STA Bullet_Y_Speed,X
: R6 x6 f' H4 @! L( L0 y" E, O - RTS$ P8 g7 z0 |. J! ~: j
-
$ A. p% f6 p# x* U2 d4 Q* q - L2_2:6 c$ a" b9 t4 e7 s) l4 E; m' u9 K
- LSR
7 ?- z$ l, T; P' s8 Z! @# Q - STA Data_buffer
% I1 h! g5 `" v9 }/ v! J3 G S1 q$ S - LDA #$00
* V- f3 C' T+ l f - SBC Data_buffer/ l7 |/ |* J) l5 j
- STA Bullet_Y_Speed,X4 ]( J; T- h: T1 ]
- RTS( A2 z7 ?9 E# e) J
- % S/ D* p! v! g& h$ o
- Track_Enemy_Y_Equal: ;子弹Y == 敌人Y
$ Z5 |% U6 @5 ? x - LDA #$00& V# o* w+ Z6 Q7 S. _
- STA Bullet_Y_Speed,X& q8 G) A1 J6 ?$ i/ y) q, K* ]' y# e
- RTS+ g' }" Y- R* s7 N; T, T
- 7 i4 S! b' K* e* H. B- u% k7 F
- Track_Enemy_X:
7 s& `1 O: Z* l5 s) t) j - SEC+ s D0 w& a6 Q
- LDA Bullet_X_Pos,X/ c! D% ^2 ^8 l1 M' X" V/ E- Q
- SBC Enemy_X_Pos,Y
# K% Y0 y& u9 R! H X) t - BEQ Track_Enemy_X_Equal ;子弹X == 敌人X
& [4 O, ^6 e- k" u5 \: M, n - BCS Track_Enemy_X_Greater ;子弹在敌人下方
3 C) S2 h! r! |- N5 _9 r -
+ G, d4 {+ ^2 q% ^1 w3 w! m4 W - Track_Enemy_X_Less: ;子弹X < 敌人X
* i i$ P$ f7 f. T1 [ t$ K% F$ \ - CMP #$FC
( H6 v+ |# H$ k1 k6 k - BCC L3_1
# j' Z# W$ }# U, [- Z4 g - CMP #$FE
( P2 \& |6 h2 s0 i* J' d - BCC L3_2
/ S9 n$ D' H. ? - LDA #$002 A* ^8 t) `0 f1 \ b+ i' `
- STA Bullet_X_Speed,X
/ Y9 b8 S( `( D! v' O - RTS
. Q! V( t+ E6 ?! Y' L - L3_1: $ t2 _7 N) g ` K5 t* a
- LDA Bullet_Type,X; y, P3 B" Q0 f2 v
- AND #$0F
9 E5 g( E, ]8 E6 m - TAY, C5 D; K: r! t+ d! h8 m
- LDA Bullet_Speed_Data,Y: {& X6 i* Z# x+ O! ~4 Q
- STA Bullet_X_Speed,X
4 N: o$ v$ m: g) c5 [, K3 w - RTS* ^# ^6 W+ [' S4 {! ^- z+ v
- L3_2: 9 X. G! M L% {0 L. x" C0 S) b
- STA Data_buffer) K9 ^7 I1 n$ r! {9 l+ B: w
- LDA #$00
( M- P6 R3 ^, C* Y/ _, B - STA Data_buffer8 X# s. }$ i+ R& Q, p# ?
- LSR
, a" O/ r) \- Z' V - STA Bullet_X_Speed,X
, C! W9 \! o& ^7 m' A9 T" m8 d - RTS
3 m- p5 i! @* q -
) l4 W) f2 k1 x$ u3 n8 I: ? - Track_Enemy_X_Greater: ;子弹X > 敌人X
* z( W; g% c+ n* z% S - CMP #$04
7 j& @0 W! G9 V" C - BCS L4_1& \6 i6 j8 f) C6 R& Z+ }
- CMP #$02
" M* }- w0 \( B8 T2 h3 c - BCS L4_2
2 F& J& i- b" \$ h4 z+ T- D e6 V - LDA #$000 ]: U8 d6 @; ~& T# A8 O7 ?
- STA Bullet_X_Speed,X
( ?$ n2 i% o$ b" p - RTS2 M" I) C$ Z% w; U: T
-
5 o) O8 [+ |& R* S( v# N - L4_1:
7 S( L/ B" M- u7 O+ D! y: g4 J - LDA Bullet_Type,X8 y% S* |& {$ H8 }# e% L
- AND #$0F; P( H) T; J3 O4 ]; e; [! [
- TAY- O* ?7 E- v: n8 y
- LDA #$00
# |: {8 W5 j _, B; o - SBC Bullet_Speed_Data,Y
3 F1 c% u W. X* O' S4 w6 V - STA Bullet_X_Speed,X
( C3 }5 U* u5 n0 e - RTS
# @. V) ^0 f; l' B - L4_2: % T0 g( Y9 X0 \0 K& u% @
- LSR, Q& ~) s5 c5 ?0 U! o8 f
- STA Data_buffer
' P$ `, d+ Q, W( F( P0 i - LDA #$00/ o& e9 Q9 D# z
- SBC Data_buffer& e0 t* \/ \( H$ m5 ^
- STA Bullet_X_Speed,X
: ]( W5 |0 E X! u' P* ~ - RTS
& R' r" h+ w. E$ l( L - 1 f8 y) m7 b" ]" s) Z
- Track_Enemy_X_Equal: ;子弹X == 敌人X
0 F _1 L0 \5 A1 H7 r+ ? - LDA #$00
/ ~" }( c; P" `( } - STA Bullet_X_Speed,X
/ J, _: O0 T" s6 v4 K/ A4 B - RTS
& q( |3 i( ~$ @0 w3 S8 C" ]- i -
B! u: g( d% F! n - Bullet_Speed_Data:
0 |3 n$ Q/ x. P6 G% [, r. I - .DB $00,$03,$03,$02,$03,$035 w! @" t; n2 _- {. L8 r
- 8 q/ e4 N% i F6 {) `# `+ d
- ;2, 4关* _9 C9 e: ? H# T
- Track_Enemy_Ex:
; i+ }! r; ^" c8 Z* a - LDX #$0F
! u4 A) L/ J% ~/ N8 c* X: z, e - Track_Enemy_Ex_Begin:* |, u6 @7 e/ o S8 t7 i9 l
- # m) _5 j o) p2 R$ e1 A( x
- LDA Bullet_State,X _) o$ d$ |6 }% E" c- `
- CMP #$01
. C% I |8 T5 p( j5 a* }1 L - BNE Track_Enemy_Ex_Continue: L q- |5 J" i% g7 M
-
& V& `# l9 k, l& X4 ]" s - LDA Track_Enemy_Index,X
6 z! A0 x7 t2 `& h9 `4 e - CMP Enemy_Index
; o+ J- b0 f3 |1 v& f8 r5 _) S - BNE Track_Enemy_Ex_Continue ;匹配追踪目标
6 |* k) B0 S; U5 ~* W - 2 j3 L; A; k( H% v$ `
- LDY Enemy_Index
! G. k, w8 B, m8 b' w - JSR Track_Enemy_Ex_X
! F0 S( h: R8 H) O- A - 4 ?& K/ ?. d! M6 h) F
- Track_Enemy_Ex_Continue:
$ q% }; A9 L# G$ E' v - DEX( v, X5 t6 p; s3 Y! A: U
- BPL Track_Enemy_Ex_Begin& o5 e# J4 H2 W. e4 M! w
- Track_Enemy_Ex_End:
9 e3 | ^: |3 H) T - RTS
9 @8 V1 v0 W5 U7 ~ - 7 H# @* u: x* \3 X- s
- Track_Enemy_Ex_X:) F) ^. I7 F2 k' d, ^. [. Z
- ;LDA Bullet_Z_Pos,X
+ }7 e7 }9 s( j4 j6 F ` - ;CMP #$04
( R" T1 V* g {* b/ B# b - ;BCC Track_Enemy_Ex_X_End
0 b: r) C3 o6 o; r0 L" C - SEC! `0 ~8 }4 c5 Q+ U& \( ^7 w0 w
- LDA Bullet_X_Pos,X# G( x7 `7 H; u# {, C% ^- i
- SBC Enemy_X_Pos,Y
+ Q L/ k% R1 T, W4 G - BCS Track_Enemy_Ex_X_Greater
% e" C# v& a' `% P -
7 T2 F2 o, j) v4 z3 W0 I* I - Track_Enemy_Ex_X_Less: ;子弹X < 敌人X0 {3 H. _% p! Z( _, {$ `
- CMP #$FD
$ l" K8 d) o& n/ n - BCS Track_Enemy_Ex_X_Less_End
& Z& q3 Z; l6 T, C - LDA $6020,X
. N$ Q* }+ w3 n - CMP #$2A4 ^8 m; r$ n3 p9 L/ ]
- BEQ Track_Enemy_Ex_X_Less_L16 ~9 f* H/ j. a5 \2 Q( v
- LDA Bullet_Z_Pos,X: y8 Z. g& @6 e0 ]$ S" Z' Z' c
- LSR
2 o* o- q( b2 |& r* x1 X& _$ w - TAY
- h: D/ ?! i* I8 Q9 H1 s: q - LDA Bullet_Speed_Data_Ex_R,Y
, K4 C- T9 G. |& \( a y - STA Bullet_X_Speed,X" ~- |( [0 d- _# S) I
- RTS
5 h6 |* V- h, x - Track_Enemy_Ex_X_Less_L1:$ w& x$ x! f+ @1 B+ f/ s+ l5 r( v) D
- ) ]( L2 {* Z% E$ l- K* I
- LDA Bullet_Z_Pos,X
; Q: V j) t0 L7 N# M" Y( ? - LSR
$ ]2 B; J( K% j, d+ K; m1 ]0 i - LSR
- [+ z+ w: ?. z& |# \/ l+ F - TAY1 U+ e7 @/ F, J7 U
- LDA Bullet_Speed_Data_Ex,Y1 [* D6 o$ E6 G+ `. n: N% ?9 p2 p% S
- STA Bullet_X_Speed,X; i" ^( J2 _4 H2 p) N
- RTS) J. Q+ z+ i) F+ K: o1 {. t$ C: B7 N
-
$ ^1 l1 J- I# `/ o - Track_Enemy_Ex_X_Less_End:/ k) a9 a, K9 l* S+ ]5 o
- RTS7 Q: L+ \8 d% { L$ p0 Q8 [
. @- X8 W+ p' J+ b' N- y9 U, h- Track_Enemy_Ex_X_Greater: ;子弹X > 敌人X
# R' s6 F1 n' i3 T5 P. H - CMP #$03
- d. C T L( k8 e4 S# H - BCC Track_Enemy_Ex_X_End2 j, z" R5 u$ ?
- LDA $6020,X; H2 i/ C" H3 o# p: f) k* \6 ^
- CMP #$2A
/ d' ~ J! n" [5 i$ T- \ - BEQ Track_Enemy_Ex_X_Greater_L1
- S* R% F3 M$ A( z7 Y1 m - LDA Bullet_Z_Pos,X
& ^0 _$ l% ]( y% A - LSR
5 g+ ?: W# q; Z# `# t( d6 i$ l - TAY
" W7 M& ? R- q5 Y O - LDA #$000 l# j- c$ u4 m6 s% l- V6 V" S9 _8 P
- SEC
; v6 j) U* W0 j: h - SBC Bullet_Speed_Data_Ex_R,Y, x v% L+ a1 ~
- STA Bullet_X_Speed,X- |$ g7 D9 l5 q; g' v
- RTS9 A4 y, O, R/ w% d+ G
- : z3 E! J8 F# p
- Track_Enemy_Ex_X_Greater_L1, D3 |) {- h4 D2 v# t& `6 B
- LDA Bullet_Z_Pos,X
5 u/ t& W$ e( ?" i O - LSR
& V/ j+ c/ g3 m; o; ]/ b- I - LSR5 a' h. t8 |) Q# n2 I
- TAY
$ T. {) l1 R3 b9 J* ^ - LDA #$00* ]% |2 B- D* x! P6 ^
- SEC
0 Y Y. H3 [* {* p+ f - SBC Bullet_Speed_Data_Ex,Y7 Q" `, ^% j i
- STA Bullet_X_Speed,X
8 m( J$ i" T% P9 ?- c& H+ @0 x - RTS
9 n7 ]3 i1 {1 C5 W$ p% K* H" |2 A -
; A8 M* ?. D3 h3 K% v/ T* x - Track_Enemy_Ex_X_End:( ]8 n! W1 |. X% ]
- RTS
( E. c9 A5 v- J2 [0 V0 L6 N1 K& {" J -
, ]! P! q+ S7 O- c3 d - ;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)% F3 Z4 }4 X2 g1 T* b3 F0 a2 o9 s
- ;Bullet_Direction = $0378 ;L子弹方向 40左下 C0左上 80右上6 o/ |; G: P* Y9 w- t+ Y6 C
- Bullet_Tract_Direction:3 N, t: S: X; a
- LDA Bullet_Icon,X
7 ^* P0 ?" h8 y' i- k, \" Q% ^ - CMP #$23. K; i' L" L* Q; T' y$ u
- BCC Bullet_Tract_Direction_End! D( p: j m: s& I! U
- 9 u3 L; f1 U- S
- ; X != 0
" x! f1 U4 Y+ k( y' O$ N+ ^2 |( g K - LDA Bullet_X_Speed,X' ]( A; ]8 k$ u
- BEQ Bullet_Direction_V3 @9 `0 H B0 l4 Y* q
-
9 n9 s6 Q3 f% m) v - LDA Bullet_Y_Speed,X
% T7 G( c- S) Z8 U, L, o - BEQ Bullet_Direction_H' G1 z6 R4 z$ q8 k
- j. j" v/ b8 D8 c3 @/ a0 H
- LDA Bullet_X_Speed,X( C: k6 W3 V" B0 [) j
- BPL Bullet_Tract_Direction_Right
' J0 Q0 _( E4 J - Bullet_Tract_Direction_Left:
$ ^4 Q# ^! _% { - LDA Bullet_Y_Speed,X
5 N3 p9 Z& O7 B( f& B6 A) I - BMI Bullet_Direction_Left_Top: F; J: v- q* Q {. x
- BPL Bullet_Direction_Left_Down/ U, A5 ^9 O- p2 x) T0 A! W
- Bullet_Tract_Direction_Right:
) l5 C; ?' ~' J& |- K" f2 m - LDA Bullet_Y_Speed,X
7 A3 L" \' l9 e6 L! L - BMI Bullet_Direction_Right_Top
! W, k0 V5 D6 y' C( l1 r$ G - BPL Bullet_Direction_Right_Down; }+ f6 V" a7 D
- Bullet_Tract_Direction_End:
J* a; K) J& m4 I) @6 f - RTS$ V# a" u" C$ r* ]& |
- ! s, }6 _( X7 h( F
- Bullet_Direction_Left_Top:
1 m3 ^9 q0 P, f - LDA #$258 `0 Y; j% P/ N( B
- STA Bullet_Icon,X
) S1 J- o' U+ R M - LDA #$C0
# x R/ w) N. q, |2 g - STA Bullet_Direction,X
, G B) ^& @. [8 x - RTS
& H7 K9 Z0 K% T+ u
, E) }$ z, |; r$ K/ w" b- x6 Z- Bullet_Direction_Left_Down:; a/ z: B, H4 G/ H: f
- LDA #$25
, Z/ l" F* ~; M! v) z5 v - STA Bullet_Icon,X/ R7 v6 p5 Q4 N+ D7 a
- LDA #$40! |# ~! `0 v, y. J m
- STA Bullet_Direction,X
$ i, t9 L C6 l6 b" l - RTS
5 X! J D! I+ Q( w8 {( F - 4 F; b C4 C* _- G5 z5 d
- Bullet_Direction_Right_Top:. g# u/ |7 [/ c/ c. O6 Z
- LDA #$25
& v) B; `5 P. h/ P4 K - STA Bullet_Icon,X0 F8 ?) f* t7 l% i; @
- LDA #$80
: A# t- o; M m3 p( n C - STA Bullet_Direction,X% \( `) q) [2 \
- RTS3 A) j1 k4 g: o& n4 x' F. n- l, k. H/ x
9 c( b5 N- @" M4 G& ?- Bullet_Direction_Right_Down:# b" V; T' P8 y& r6 R8 z" ?( T$ V- R
- LDA #$257 O" y8 L( U+ Y$ h: Y" ]- R
- STA Bullet_Icon,X6 X& S. e% o: l
- LDA #$00
2 |( i8 Q& V5 ^ - STA Bullet_Direction,X9 m/ }$ P7 z4 v' b$ X$ U
- RTS
+ B" E1 p Q0 w; _7 B! T - - E& U. f6 r3 ?. F' y, Y" o
- Bullet_Direction_H:
+ s! P% {" a+ r0 { A$ X - LDA #$24$ s8 W5 A7 u- {/ F+ j0 E2 l! c' O! l
- STA Bullet_Icon,X
$ z; \, ]; y0 }& h: B* } - LDA #$00
5 Q9 @* I' K4 P% { - STA Bullet_Direction,X2 H4 E: E: v% d6 S
- RTS: U' |1 I; b* F& K' H
& i O3 n9 Z( {- Bullet_Direction_V:
: ^6 q0 S$ m2 w! T. }0 I1 J - LDA #$23
7 a2 q+ T2 _( y# V1 q2 c$ w - STA Bullet_Icon,X! C' f' w5 F8 U9 y. S
- LDA #$001 D8 j! Y( @; K! w, R$ C$ ?% G
- STA Bullet_Direction,X
( p9 a1 T$ ~5 n, H4 l - RTS
8 a4 _1 `" K( W6 J% }/ L7 I3 c
) D- M m' x2 b- Bullet_Speed_Data_Ex:5 M) Z* r E. q) Z
- .DB $01,$01,$02,$02,$02,$03,$03,$04,$04,$04
/ g6 T) c) A+ B9 \9 @0 _ - 8 a8 E1 T( \; h; W" w. H/ `- Y
- Bullet_Speed_Data_Ex_R:- x+ ^& V# ~ ~8 ]1 D4 Y: w4 x" Z
- .DB $02,$02,$03,$03,$04,$05,$06,$07,$08,$08* P8 u r# m' S8 l4 }! j# y8 T* d6 E
-
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