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[FC][魂斗罗][J][追踪弹]
' p, l8 H/ Z: n/ K: F: e
+ r6 B/ Q# u& X时间:2023.04.30
) I# W7 [+ J$ v; D6 b* a3 _作者:FlameCyclone8 C+ p" v5 N4 s
内容:( S/ T% @' K7 K, I' Z
1. 所有子弹追踪敌人' l( H) f% g5 H p! ]6 @; N# j8 u
2. 选择键切换武器4 R7 p& m$ w1 M" K4 b
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4 D' l* ?; \1 d8 w- J+ w
5 ]) c! ]# g' z; J3 J
flamecyclone.ys168.com
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- Bullet_State = $0438 ;子弹状态 0:不存在 1:存在 2:销毁
# Y, U/ n+ w! b5 S5 | - Bullet_Type = $0388 ;子弹类型 0: 无 1:普通 2:M 3:F 4:S 5:L8 T% s! r4 Q+ b* U' Y# s) e; b: W# Z
- 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)7 _( D8 b2 s: B! F2 A7 N+ _9 I
+ N3 Q. _" \( C- b L6 E! {5 C |9 j- ;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)$ ?, D# D- F. @5 I) a/ T
- Bullet_Direction = $0378 ;L子弹方向 40左下 C0左上 80右上0 ~% Z' j: f2 }0 R/ Y6 c
- . ~* e( t3 J, A' q1 s% C6 `: @0 V
- Track_Enemy_Index = $6000
( S' m5 W. X& V/ h, d4 U - Enemy_Index_Begin = $6010: g" L5 ?7 k" M
- Enemy_Index_End = $6011
4 W8 l6 T1 R5 s6 B' s9 {; g8 R I( c
. ~& d$ d/ n2 r4 W5 X- Loop_Index_I = $6012
3 L! B# i/ P7 f/ _& n - Loop_Index_J = $6013
) d" u( A9 f+ T" Z' b9 @6 [+ n0 F - nEnemyIndex = $6014
+ w) c( X3 H& [' y4 w( ^ - Data_buffer = $6015
$ `4 M' S# |% M4 X0 X
7 c$ E) F: P8 n! ~, Y$ v* d- Bullet_Y_Pos = $03B8 ;子弹垂直坐标
) R/ n9 Z. c( @( C/ M6 c3 X( ~ - Bullet_X_Pos = $03C8 ;子弹水平坐标' [% |6 w% B1 W* J
- Bullet_Y_Speed = $03F8 ;子弹垂直速度& h _( w Y$ E5 {4 \' u
- Bullet_X_Speed = $0408 ;子弹水平速度4 h3 a6 M1 @# S: w6 Q+ i8 l
- Bullet_Z_Pos = $0418 ;子弹Z坐标7 o [) X& E% F# ^& H4 Y
- Bullet_Owner = $0448 ;子弹所有者 0: 1P 2: 2P
9 m" H2 }( D; C6 J9 j2 x! m
2 _/ Z; m+ P% l7 e- 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 W( H; |# f# z0 o* h2 c9 }' D! {
- Enemy_Blood = $0598 ;敌人血量8 P5 ?+ B m" O% _7 H
- Enemy_Type_Addr = $0528 ;敌人类型* U" P" m, m* A8 i; N
- Enemy_Blood_Addr = $0578 ;敌人血量
/ e- r+ B5 B. O- t/ M' m - Enemy_Y_Pos = $0324 ;敌人垂直坐标" q+ C5 [ w6 {* M- h
- Enemy_X_Pos = $033E ;敌人水平坐标
( U( z5 h0 r* p - Enemy_Y_Speed = $04E8 ;敌人垂直速度
' T+ ^# T3 x& a: `8 ~" O - 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
5 ^8 o. c0 f" c- @% _
; K3 ~" m4 ~+ k5 V3 V1 {- Enemy_Index = $83 ;, |) `7 q# Q% f3 M
- Time_Count = $1A
; ^/ m# w8 ^* h3 a - Track_Bullet_Speed = $07 ;分配子弹追踪敌人频率1 y' c* Y, |) v% B5 N5 W
- Track_Enemy_Speed = $03 ;子弹变向追踪敌人频率" m% _" D. p$ O. x
8 D; B9 j& X, c9 i& k
) r9 h j" d* M" s V3 e- .ORG $61004 L; n9 {4 F$ y$ l( Q
- Process_Begin:
4 h' S0 g1 t0 i7 w/ { - JSR Enemy_Check# p1 c( S# y5 a9 j
- JSR Track_Enemy_Check
: h. j, r- I+ H4 k( { - Process_End:, ]; Y" S+ k0 I- u0 W4 `
- JMP $E54F
: [3 D3 ~5 Z0 {8 V( j8 O
5 E; F4 I, n2 b* A- Enemy_Check:
( h3 Z* Y1 B2 y" D- P( r - LDA Time_Count6 A+ d7 {$ G5 a1 T/ ^' ]1 _
- AND #Track_Bullet_Speed
: K% d* U& H- P: l - CMP #Track_Bullet_Speed
" ^# d4 X! j+ @- V# |7 _ - BNE Enemy_Check_End
?$ ^& S/ X3 {" `* [, E - LDX #$0F" S1 k+ }* j& Z& s' Y5 _8 u! P' u
- Enemy_Check_Begin:) q9 ~' M$ e+ r% B; |6 a) o
- LDA Enemy_State,X5 n8 o; {. d! h
- BEQ Enemy_Check_Continue
2 ~) d7 n2 ^% C; w. Q9 z - STX Enemy_Index$ W* e0 D( x3 ?- h1 x* E
- JSR Find_Begin_Enemy7 E; s& U0 S8 \+ H0 Q% K5 \+ P
- JSR Find_End_Enemy5 {3 T4 u. }9 W! O ]% V
- JSR Bullet_Track
' F& Y- {4 e' P, R. h: B" Z -
2 g+ e% s+ K& h+ [) B4 z7 {/ x - LDX Enemy_Index4 N6 {: P4 H1 ?' F' U0 W; Y8 W
- Enemy_Check_Continue:2 j5 w, ?# F/ u+ U
- DEX" Q* i0 o9 G9 q; b3 e
- BPL Enemy_Check_Begin9 ?% k/ v; X. Z
- Enemy_Check_End:3 L2 k3 n6 k1 ^2 y
- RTS" C0 l+ L1 W4 ~ H; x0 c% c. ]7 ?
- ! ]' O- }) b, K. L" c
- Track_Enemy_Check:3 d- Z$ q. f. j' u9 G( l
- LDA Time_Count
2 F- X* F) P) K1 e" z2 G - AND #Track_Enemy_Speed
7 z$ J* S1 ^5 s4 M/ m: I4 @& V% I - CMP #Track_Enemy_Speed
( q- s; @, _ p- f/ x- _3 X& t - BNE Track_Enemy_Check_End+ i1 L3 o3 ^; N( [* W
- LDX #$0F: w+ ]/ y4 u" U A1 W
- Track_Enemy_Check_Begin:
% d! r6 `; M3 d5 Y J - LDA Enemy_State,X( U/ i# }* I, T/ w3 Q
- BEQ Track_Enemy_Check_Continue
& G- }! ?; n, l: T9 M6 X% | - STX Enemy_Index: M4 R' e+ D$ W& f
- 2 }5 I+ P S; A" P7 q
- LDA $40
4 { n3 x& y. n, o/ v4 E& O7 Z - LSR: N/ S( C1 B$ i4 ]% J# Y: _
- BCC Track_Enemy_Check_Begin_L1
2 r9 [- {3 k2 ]- _% e5 F5 Z - 8 H4 \4 h" ~4 ]8 h
- JSR Track_Enemy_Ex ;2, 4
" i4 x; q% n% v# w3 Y) f* t - LDA #$00
( K3 s4 U; Y0 d( ` - BEQ Track_Enemy_Check_Begin_L2" d) Q" ^# ~1 b* W+ ~
- / D7 F( W3 B3 `& i2 O) L# o
- Track_Enemy_Check_Begin_L1:$ b' }0 l$ r. R# r9 j4 Z6 P
-
1 m4 {$ ]5 B- @" ] - JSR Track_Enemy% e4 B$ M" t: g' A) t2 }( s
- y4 m+ T" W9 K# y9 y+ ^+ l4 @- Track_Enemy_Check_Begin_L2:
9 |1 k2 t- r2 g -
# S& I$ J+ B+ {( O8 i - LDX Enemy_Index$ ~/ P) O7 P8 v s1 C' U. \
- Track_Enemy_Check_Continue:- U" F) N" ?% F. Y4 t1 f. m7 R
- DEX
$ l/ r$ x1 ^3 ^( \' m" O- x6 g- s - BPL Track_Enemy_Check_Begin
& @" a; h( T; T( l7 { - Track_Enemy_Check_End:
) ^ N3 }8 D5 X - RTS
% \5 ?& f0 Z N3 R! z' x8 i' ^ - " p% w+ ^* s- D% G( G; L5 t8 n
- 1 P B2 x# e5 S9 z6 w
- ;查找第一个敌人0 d s9 e8 v- {. I x7 j' @, T
- Find_Begin_Enemy:
, N; J- ~9 @3 X ]. h* w. E9 s8 g; g - LDX #$00
5 V, W2 R p3 M) g+ s( K - Find_Begin_Enemy_Check:
9 g' M- d1 I% o9 Q - LDA Enemy_State,X
0 B. h3 M! _+ g! y+ s5 } - BEQ Find_Begin_Enemy_Check_Continue, K! ~" I3 P0 Q/ J3 E3 {4 W
- LDA Enemy_Blood,X+ A, W! c- z Z& d' Q& n
- BMI Find_Begin_Enemy_Check_Continue1 O Q7 i( ]3 @8 J" ~* ]/ \' s# B
- BNE Find_Begin_Enemy_End* ~. ]% j# P" v/ |; L5 ^
- & Y2 Q/ l' @, ~# Y
- Find_Begin_Enemy_Check_Continue:. K/ {( ~. G" E7 M4 s! K
- INX- P; J' d$ c8 E: o4 H e
- CPX #$10
$ s1 g5 U5 T) h5 W0 ]' K- T - BCC Find_Begin_Enemy_Check& I Y s2 B9 n( |6 v
- Find_Begin_Enemy_End:
* J5 ?6 ?( e0 X3 b6 [9 X8 I7 k - STX Enemy_Index_Begin/ N9 F! e' ^; x7 a& k
- RTS
8 h1 _- ]# F3 P) K - $ |4 h; r$ v/ \% u% q! X; I5 k
- ;查找最后一个敌人
8 O, u x9 _: r0 U' o+ S - Find_End_Enemy: C! A8 Q W* E0 Z8 u1 w
- LDX #$0F
4 Q$ T/ w9 K% v& j' K' p7 D - Find_End_Enemy_Check:
* e* O% m# d, f) g v* y - LDA Enemy_State,X) x: @* J0 g4 W. h
- BEQ Find_End_Enemy_Check_Continue( j+ c- l" B7 x9 n/ q- d: r+ \
- LDA Enemy_Blood,X
- l9 g# P) g0 `4 ]8 v9 } - BMI Find_End_Enemy_Check_Continue8 U. H Z0 J. }+ O
- BNE Find_End_Enemy_End
- @% H/ Z0 Y A - , z. f. a* g% U4 L* l8 x% ^2 m- J# R( p
- Find_End_Enemy_Check_Continue:
. q* w# ?7 r$ ~4 F) v4 v* X - DEX
! g1 m U1 n/ V6 Q# O6 s( [0 R) K - BPL Find_End_Enemy_Check3 S! e% m" s9 B* ?3 L+ D1 `( x
- Find_End_Enemy_End:5 ?7 Z* f# Y$ M8 F& O5 c; }% _
- STX Enemy_Index_End' O7 {( l7 E3 k0 l
- RTS
3 _- a6 j8 Y* @2 K: H* L6 r0 W - " h( Z! N4 y* I. t$ @9 ^9 m. h4 k
- ;子弹追踪
% J( ? Z/ \& g - Bullet_Track:1 ^0 X- N. |8 @; O$ ^7 N2 b! f
- LDA Enemy_Index_Begin
1 f1 b" w+ j8 j+ h( Z- `' N9 q - STA nEnemyIndex ; int nEnemyIndex = nEnemyIndexBegin;* a/ F$ e# S; D
- LDX #$00 " _8 c8 n& }5 H2 H- s
- Bullet_Track_Check: ;for (int i = 0; i < _countof(nBullet); i++)1 f. u# c# L+ R( J' V0 Y: Y+ v
- LDA Bullet_State,X
. _) E& x9 ^% l - BEQ Bullet_Track_Check_End ;if (0 == nBullet[i]) continue;3 F' g3 o$ v4 p
- STX Loop_Index_I
9 h' `* g* C W7 G" [ -
2 ^3 V. p+ i9 X) G3 r - JSR Bullet_Track_Enemy# @+ q$ z% K4 z1 T F3 b; ~
- JSR Bullet_Tract_Direction( g, I3 [* S4 K' K+ n
-
+ d! Y5 [% n6 M - ;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
9 q0 G( U0 z; f( L. n) V, S - ;if (nEnemyIndex > nEnemyIndexEnd) nEnemyIndex = nEnemyIndexBegin;
* d( ]1 h4 ?0 \8 C, V3 N; a - LDA nEnemyIndex
r! t% X; g3 I - CMP Enemy_Index_End3 P2 ^, x: m1 x" X' q9 f& m; h1 a
- BEQ Bullet_Track_Check_Continue/ e7 ?; a ^4 Z% P# Q; J. m
- BCC Bullet_Track_Check_Continue8 g$ W5 C x* m
- LDA Enemy_Index_Begin! S" c2 P/ j: v
- STA nEnemyIndex
& D% @$ C g" @0 b5 m+ }1 d. C) I -
9 m" |: w2 t$ a3 u# h. ] - Bullet_Track_Check_Continue:
2 [- ~; [' e7 D) W* @& _: p% c - LDX Loop_Index_I
& C& U: R& R) O% ?) M - Bullet_Track_Check_End:
" w$ H8 x2 h$ E7 A - INX7 V5 Y- b" a" }9 H$ J
- CPX #$10
1 F: I [& v; \3 k9 J3 y6 A/ Z - BCC Bullet_Track_Check
$ a; F, e( k5 q! Y* D - Bullet_Track_End:
^1 f0 j' o+ j! R/ v - RTS
) V! w# @0 ^5 W) z* k! W3 h6 M/ G -
) m* J0 p( w, A& C @# ], C0 G - ;给敌人分配子弹
# }/ S' t, I7 W6 T - Bullet_Track_Enemy:
# O2 l$ O0 n$ w2 |! z$ J0 Y o6 D - LDX nEnemyIndex ; for (int j = nEnemyIndex; j <= nEnemyIndexEnd; j++)/ V7 g- N. I* |
- Bullet_Track_Enemy_Check:
+ a3 t9 N/ @% x8 C. E0 T - STX Loop_Index_J
* F* \5 b0 t% B; s - 9 ]# L0 X8 ?$ u) G9 z9 a, c
- ;if (0 != nEnemy[j] && -1 == nTrack[i])
* L q% N% x1 C3 v. Y) c - LDA Enemy_State,X% ^: M5 H* p% j& _" ?; ~
- BEQ Bullet_Track_Enemy_Check_Continue( M' E0 L( l1 p/ l& k
- LDA Enemy_Blood,X
) x* p: J1 D. @* h - BMI Bullet_Track_Enemy_Check_Continue
7 a3 Q9 S3 J$ O$ b5 f: I6 T4 ]2 |( ` -
$ w2 @4 [3 A7 V& f6 z1 v' @0 d - LDX Loop_Index_I
+ e$ u' q4 q( p; W2 [% L - LDA Track_Enemy_Index,X
$ f" ?: M1 r9 A: d - CMP #$FF$ _' f; K/ q3 g1 Y! Z0 x/ w2 e
- BEQ Bullet_Track_Enemy_Init
! T0 u# X+ g- X - % A9 O. v @- Q# W
- Bullet_Track_Enemy_Init:# \* D6 q5 t0 i2 X, |
- LDA Loop_Index_J
, r' I+ p! h, G4 I# V) R, j7 d - STA Track_Enemy_Index,X ;nTrack[i] = j;
6 h; \7 d% i: c+ J! w4 O5 v -
, j# j* N: ?2 h$ D' n% `# W - STA nEnemyIndex
! q5 d' ^: w. x6 J - INC nEnemyIndex ;nEnemyIndex = j + 1;; u' }% X8 C( e9 ?. Z) {3 G
- RTS ;break;
( z2 }% U9 y( N2 q, O
- |: [1 m$ Z" I% r- Bullet_Track_Enemy_Check_Continue:
8 [8 P1 O+ A# P7 \* S2 I* X - LDX Loop_Index_J
' m9 x. C- F+ t; w5 |2 q - INX ;j++" |$ L( i: Y- A% @* C
- CPX Enemy_Index_End
' g: C6 C J' z5 C( O - BEQ Bullet_Track_Enemy_Check6 n+ g: r: z* @ z! q
- BCC Bullet_Track_Enemy_Check4 W& i/ M+ A: V$ P. G
- Bullet_Track_Enemy_End:) ]& k6 s" L9 B
- RTS4 g: h: N1 q* D
* E' Q% {/ n+ M8 t- Track_Enemy:+ a" z4 R; I: h
- LDX #$0F+ n, A+ B! c* [$ j; G$ V+ h
- Track_Enemy_Begin:( z+ D7 |" _+ ^, |' B0 Y
- LDA Bullet_Icon,X
) ]: L* x6 N) J, n - BEQ Track_Enemy_Continue
/ h+ Z5 C3 K+ p3 p2 {0 S - LDA Bullet_State,X1 o$ ?1 U3 X- w& u$ q
- CMP #$01
+ M$ s- l2 H' B. T2 g - BNE Track_Enemy_Continue9 b6 h6 m X& m# ^, Q, U# m* B- T; Q
-
0 P ^2 E8 H( X# f% G* F - JSR Track_Enemy_Process# I& h1 ? k, Y7 d% D3 a
- / x" n" o% L: J% V( \7 P
- Track_Enemy_Continue:
1 ~0 ]$ M5 E7 n- z4 ? - DEX
; m; K, N/ o" \4 R6 |$ I' t - BPL Track_Enemy_Begin
' c% u$ _/ S3 A E' Z1 S - RTS
& I \- a2 u. T$ y# M$ \/ B
2 Q, S1 B P' K- ;普通关卡1 o# y ~! Y f( l/ v
- Track_Enemy_Process:2 M: D8 d1 j7 p7 j7 }5 o
- LDA Track_Enemy_Index,X
0 L" A: f2 ? d2 ^ - CMP Enemy_Index
, _; a' D3 T" I& E7 N. G3 {6 [ - BNE Track_Enemy_End
, O" ~/ n' ]: F1 `1 K* P" j - LDY Enemy_Index
0 ^8 t, P4 w4 L: V1 K - JSR Track_Enemy_Y
1 G; X( e2 w4 Q: j: C - LDY Enemy_Index
2 s- j# K o1 f" D( g0 Z: U - JSR Track_Enemy_X
: s4 k7 t+ u- a' L5 u8 \* ? - Track_Enemy_End:
# B+ ~4 J- V- q2 `* Y - RTS% W. j2 o) T% o8 ~3 i' o/ e2 Q
- * P! `6 E6 t4 l2 h# B; F
- Track_Enemy_Y:
7 y* A8 E' k. r) V5 K - SEC" ?5 U7 J- ]& Z+ [; T
- LDA Bullet_Y_Pos,X" k0 E' e& P7 O l- X" T
- SBC Enemy_Y_Pos,Y/ m0 d) n6 F% ]5 A
- BEQ Track_Enemy_Y_Equal
/ ^) X4 j/ N5 }7 K7 M - BCS Track_Enemy_Y_Greater
, {4 h7 u8 w; A4 ]. z u, R - 2 D& M9 I6 `4 q/ S/ Z, B
- Track_Enemy_Y_Less: ;子弹Y < 敌人Y
" m# T8 X4 R# u' B - CMP #$FC, u6 P" e6 ~7 W5 k# Y8 _2 b5 k
- BCC L1_1
8 N! w) d3 L- ?6 A$ J% | - CMP #$FE7 P; x( n/ h3 A! E1 R- o) I$ `
- BCC L1_21 C/ }. d% P6 @6 y, }% r& b- a
- LDA #$00& j1 U& I4 i M e9 h
- STA Bullet_Y_Speed,X
6 n& r4 p! n* C+ \& P' L8 b( F7 d, r& q - RTS. _" v t. J$ E' ~$ K) Z Z- `9 L( z
- L1_1: " H+ Z, n. Z4 O6 |- w
- LDA Bullet_Type,X
$ {3 l7 X( l. L! T( w0 W - AND #$0F( X2 F+ |, ?0 p( }) n. Q
- TAY1 j/ N* A7 V1 z" X; i6 f4 W, q
- LDA Bullet_Speed_Data,Y+ S$ D" H9 z1 \6 t1 M/ j) r; F
- STA Bullet_Y_Speed,X
3 I- Q m5 f4 L- A+ a5 B - RTS9 _# o M. B( U q6 }( Q5 |' s# {
+ H2 q/ w, w8 Z& D3 F1 V4 S- L1_2:
' V F# P2 u. L: R; _6 l - STA Data_buffer
, R% O( m5 I1 }* X - LDA #$00! H8 B3 n% @4 Y
- STA Data_buffer
- X* K% J5 p) C - LSR* Q& I6 a( z1 H8 k
- STA Bullet_Y_Speed,X, ^+ u# W3 j) l! I q) \. m
- RTS. ~: M& a' ^" J' S- `
- " |& D1 O( G9 D% J5 J& A
- Track_Enemy_Y_Greater: ;子弹Y > 敌人Y5 G; j0 d& N7 j, s* ?' E
- CMP #$04" d+ o) g4 A8 e t8 }9 @
- BCS L2_1
+ \% l6 P+ E1 `2 {+ M- P) c$ u9 j( n - CMP #$04! ?; ~ M. |, T9 r H, V. ]
- BCS L2_2* v& f& `- N$ u/ R- k
- LDA #$00
: v( g9 Z- e2 \; T0 b - STA Bullet_Y_Speed,X
5 H3 }3 Y O3 Z - RTS
8 t: M* V" i* Z7 y: p0 g$ C -
2 ^" I5 Z- ~' ?8 v, v - L2_1:+ |: V1 d# v# S+ P1 P. _& o6 s
- LDA Bullet_Type,X
! _1 [$ o7 x. x2 G. w5 h - AND #$0F
/ Z# _$ M* C; V. Q. A; g - TAY5 z! J3 p3 A7 k( {0 I7 ~9 ?$ M
- LDA #$001 |# _ B9 C/ h! z4 I
- SBC Bullet_Speed_Data,Y7 z3 h3 u8 L5 o
- STA Bullet_Y_Speed,X
2 m7 N; c9 r, y/ s; \' h1 m - RTS
6 g& b( _, q- ^ E% u -
8 m! t6 S# h8 Q8 b! R- \ - L2_2:
# J" T# O+ Y0 P1 x$ I) ~% k& I - LSR
1 v* ?0 i) v& g% J - STA Data_buffer
0 z+ y) M, n- q# } D" n - LDA #$00
6 I! q' P( d* X& | I - SBC Data_buffer G6 G2 v1 M" n, ?
- STA Bullet_Y_Speed,X
+ M& s4 X& ^* v7 e* k8 v( V/ I - RTS
5 l* }/ t, O" f) H -
6 B- e) q5 w/ N- y m" ~8 ` - Track_Enemy_Y_Equal: ;子弹Y == 敌人Y
! Y8 |+ _- h' E Z1 f - LDA #$00+ D) t: [+ U% ^5 S. P$ y
- STA Bullet_Y_Speed,X
& G e2 \" J7 L" y% D9 d - RTS F8 o/ l5 o( F' S' F
-
y& R S( A: I* q& i - Track_Enemy_X:
. V3 t* U2 G( f* t7 R9 r0 E0 I b - SEC( ]* @9 ^: i! i4 H
- LDA Bullet_X_Pos,X
' m0 t# a2 a& s0 C+ R7 |7 Q - SBC Enemy_X_Pos,Y! j, q k" m/ T1 j0 ?6 A
- BEQ Track_Enemy_X_Equal ;子弹X == 敌人X( e+ K* i% f% b! A& w. u7 L3 e
- BCS Track_Enemy_X_Greater ;子弹在敌人下方) @4 ~# Z7 I- f m* b8 W& F) m. x
- 5 G5 D5 x% q$ T) C- s" O9 B
- Track_Enemy_X_Less: ;子弹X < 敌人X
& T0 g0 ? \% L& P6 f3 Z - CMP #$FC
! p' r( H$ ^: T( u# q - BCC L3_15 u6 O; ~ L$ S
- CMP #$FE9 f* B1 }- r& k0 K, y; S3 Y
- BCC L3_2
1 n0 q+ b+ L" d2 c+ ]6 \ - LDA #$00$ Q% i' A) ?6 J) w
- STA Bullet_X_Speed,X
! h8 t, Y- P8 O+ ~+ l1 ~) Y1 H0 b - RTS
# R$ e9 s2 P; k( {' h- C( o8 I - L3_1:
, P" m7 @3 b5 z2 l" @% M. S! V$ X - LDA Bullet_Type,X
) q, n, U8 G/ z; e/ L( t5 c - AND #$0F3 @$ I* l! m" }/ f
- TAY
+ W1 g8 r8 D/ [4 i* Z - LDA Bullet_Speed_Data,Y6 L$ N* Q7 j( G. O
- STA Bullet_X_Speed,X
% `. ^3 b- P* F2 P0 r - RTS& T- z- c- i4 F |9 r5 ?$ F
- L3_2:
6 ?: k* S- \+ x - STA Data_buffer
; O- U/ a* n( }$ J! }( R - LDA #$00
6 c) x u c; p$ h, O2 t! g8 f2 B$ g% W - STA Data_buffer
) f0 |3 B6 Q( G2 l3 \5 K - LSR) b& P: i4 N* @; y
- STA Bullet_X_Speed,X
; }- U% K& Q8 G! W ]3 n; F - RTS' u z1 E9 \$ e& v! t
- , o' f. m6 K& l7 O: i9 x
- Track_Enemy_X_Greater: ;子弹X > 敌人X
+ ^" p& U+ W# m, @, f/ q& s - CMP #$04
* j0 p7 D. d2 e& J - BCS L4_13 S$ R, I) f6 y8 P5 K
- CMP #$02
1 M6 c0 [. q9 z/ s - BCS L4_2' l8 @/ {* I3 z5 n q
- LDA #$00
- d$ N( |, H; i# O; t0 j! H8 U2 k - STA Bullet_X_Speed,X
$ M1 F L- u6 `/ C - RTS$ Z3 q. G* E' j' C9 P+ j' d
-
! B! a* U7 _. P - L4_1:
; M# G1 _8 _/ u1 j2 p - LDA Bullet_Type,X
( z; L+ o3 @) h( Q0 C, @ - AND #$0F
, u! V, e' J% c$ T - TAY7 P& m1 D7 _# @2 E4 C# q6 t8 u
- LDA #$00" ?' F V. C1 E9 ?& F6 ^
- SBC Bullet_Speed_Data,Y' q. [. g+ {, q1 D! W
- STA Bullet_X_Speed,X
0 T( b- L7 {3 S$ Q$ f5 ` R - RTS, S7 ^$ ~6 q* c6 @( `# a* K
- L4_2: - K! T1 f q& l. I) g: I& h
- LSR
( I7 I& R; P2 _6 q+ I6 H$ F' `1 e - STA Data_buffer
W, G/ p) r( L0 T - LDA #$00
8 |) e& }) _" j" V. a - SBC Data_buffer
. N4 y$ |! j1 i9 y% r3 t+ X% [ - STA Bullet_X_Speed,X
; |4 F! f1 C5 I - RTS5 n4 d' B0 T4 l8 P B* p
-
% c' @: l& w8 x. Z/ k2 I4 @ - Track_Enemy_X_Equal: ;子弹X == 敌人X% Y0 Z6 U8 v" q& d! C
- LDA #$002 t3 o. e$ Q# ^; e4 i6 Y6 a
- STA Bullet_X_Speed,X
|$ X p% r6 P- g9 i* X0 C0 W( ] - RTS2 }0 c9 ^9 T. r, w
- ( J# l+ h1 S( z H# B" \
- Bullet_Speed_Data:7 V& v: Q7 ]# C! b
- .DB $00,$03,$03,$02,$03,$03
9 I. \7 w% X1 q" c9 E* j2 Z# v1 t- I& R. V- s -
" O4 [7 q- v' } - ;2, 4关
3 t: O6 d9 y4 G O& y - Track_Enemy_Ex:
$ n3 @ K( A1 D- E# w# c - LDX #$0F
- N5 X# ^( F$ _: ~ - Track_Enemy_Ex_Begin:5 E) _5 W7 r c# T6 l. a$ y; [, R) I
- $ A+ I; \1 \: Q' L/ h8 l7 ^+ t
- LDA Bullet_State,X5 u* s0 D8 b i9 s. c
- CMP #$01
4 Y+ x6 b- X g8 Y - BNE Track_Enemy_Ex_Continue+ r& m4 \$ P6 m8 e1 Q5 Y
- , m7 b$ a% O- L4 p
- LDA Track_Enemy_Index,X
1 m1 t8 |# \3 x% ` - CMP Enemy_Index3 |4 Z7 j/ s- m2 p. {& {
- BNE Track_Enemy_Ex_Continue ;匹配追踪目标
% _) |9 V+ b7 i' i7 r - + K; y# P5 N0 P! H+ r# ~
- LDY Enemy_Index; G6 q; h6 j/ t; ^& |
- JSR Track_Enemy_Ex_X
% Q' }% Q v& ?! y: Z -
$ z, p& ?0 @3 }% m1 b) s4 V - Track_Enemy_Ex_Continue:: F. j% e2 M B8 [
- DEX
/ y' [; k) k ~ - BPL Track_Enemy_Ex_Begin
# D0 X$ D. a# L+ c - Track_Enemy_Ex_End:
! n% {1 W: z1 Q4 H: Y! p( \ - RTS! @- l9 V! z- V/ c3 N( u
- 8 i7 }/ q( @* A" N6 p
- Track_Enemy_Ex_X:" B! A+ M% }6 q) N+ N
- ;LDA Bullet_Z_Pos,X* w8 T- R1 g4 ]: \, x" E& G
- ;CMP #$047 a8 o: h% ]5 s" A
- ;BCC Track_Enemy_Ex_X_End
. p3 U% u- R6 A - SEC
! Y9 \* c2 u/ ~0 A4 w7 X7 s3 T3 z - LDA Bullet_X_Pos,X+ @- \# [0 ~0 x; [$ P. f0 M
- SBC Enemy_X_Pos,Y7 \. A: ]$ i" F& {4 w$ O* [7 R
- BCS Track_Enemy_Ex_X_Greater E" [5 M1 p# z
-
% B, t; H0 n( P0 f# h; a' K - Track_Enemy_Ex_X_Less: ;子弹X < 敌人X* n9 b4 [; p$ i( j7 V
- CMP #$FD
* p# {' J- K) x9 i - BCS Track_Enemy_Ex_X_Less_End
0 e8 @3 I6 H6 z% ]$ t' X - LDA $6020,X9 J; ~5 G3 z* f; h a
- CMP #$2A
7 ?, N) g3 C/ e+ D5 n - BEQ Track_Enemy_Ex_X_Less_L1( D+ N. h4 e9 \) m. N# }% \
- LDA Bullet_Z_Pos,X
- S, `; A2 L! J - LSR# ?. ^" Y! L( n8 ?% u0 b: p
- TAY
. t e% U$ I4 h - LDA Bullet_Speed_Data_Ex_R,Y4 K5 ^- m9 H7 ]) Y9 q' _
- STA Bullet_X_Speed,X- s) [3 y. L& `$ r6 z
- RTS
+ d4 s5 X5 z2 Y8 @9 [ - Track_Enemy_Ex_X_Less_L1:' U8 T( g9 x3 m: n1 P$ @2 C
+ M* V# ?. m M; J; [+ k, k1 Z6 \: S- LDA Bullet_Z_Pos,X1 r9 Q5 t* {, ?
- LSR- f" F& d' x% P
- LSR
, q3 ~0 E5 b1 o" s. |8 L" | - TAY
+ i. w& c$ X6 m; q - LDA Bullet_Speed_Data_Ex,Y
B2 Z9 ~' Q6 S- T& L5 z; u7 P - STA Bullet_X_Speed,X4 G& r8 v+ i5 ?$ ]4 U( T W3 c5 w- h; u
- RTS
) |- e0 X/ V9 d" K) _0 f6 F -
( T n" k* S* q8 k9 E8 ^- ^& j: U - Track_Enemy_Ex_X_Less_End:" m: p' e& }! D ^
- RTS. u+ K% e( S% H2 Q
- : j: t) \% ]5 H; v0 q: ?; G1 i% N
- Track_Enemy_Ex_X_Greater: ;子弹X > 敌人X2 l, }* k0 b8 }( {& J; h
- CMP #$03
* @6 O+ _2 F. l- t - BCC Track_Enemy_Ex_X_End! U U" }% y( G
- LDA $6020,X
4 _% `% W% k: X Q - CMP #$2A
% R) ], g8 _# Q, _3 G9 q/ C2 r4 V - BEQ Track_Enemy_Ex_X_Greater_L1- ^, g) i p: E, x7 h' D
- LDA Bullet_Z_Pos,X
7 G6 G! q! P! H A7 Q4 k4 {! T - LSR8 B8 |; W, C* B$ R
- TAY+ ~% E7 [: U7 s# Z8 A
- LDA #$007 s0 Q7 a- a9 b; P" i8 k$ M& ~+ R: P+ [
- SEC; F9 U' d5 E# `, V- {
- SBC Bullet_Speed_Data_Ex_R,Y
4 [9 Q; F8 T5 v( r - STA Bullet_X_Speed,X
# f/ B3 F6 H4 @: w - RTS! V& g/ }3 d# g) b1 i6 ^; X
- R+ A* E& Z+ C; N5 M# s
- Track_Enemy_Ex_X_Greater_L1- p( I' q( G, M5 b8 Z
- LDA Bullet_Z_Pos,X
# q5 Y1 B& R9 u - LSR
1 u$ @2 D: h9 z* r) `) w - LSR1 f6 |, t, R8 _2 ]& T; j' n
- TAY( S) i3 U+ {8 s4 S
- LDA #$00- C9 `6 N) S. n, a+ w% O7 L
- SEC
& a, c4 f% m0 v' L7 Q6 p - SBC Bullet_Speed_Data_Ex,Y
" O4 U% _; ?6 ? Y9 j r$ j - STA Bullet_X_Speed,X
* b4 _2 ~; S# k: [ - RTS5 |' _$ X7 |% \5 O
- : g1 n( [! T2 _' i& ?
- Track_Enemy_Ex_X_End:% Q4 T! _/ p: A# B) t: U: M
- RTS
7 \. ]3 n0 I3 g: i+ d* v; |% G* _* |9 l8 K -
# \! J; Z+ B" O+ { - ;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)
" _" G' G: Y' e* \5 M& B - ;Bullet_Direction = $0378 ;L子弹方向 40左下 C0左上 80右上
* e I7 i- F5 b" r - Bullet_Tract_Direction:
# b2 b8 A/ D5 ? N0 k - LDA Bullet_Icon,X9 k8 _0 T) y9 t' b
- CMP #$23% f! e, \3 T: p1 h1 j: k
- BCC Bullet_Tract_Direction_End( ]% @/ u: Z: F8 \1 y9 H+ w
-
; H3 _/ K. S* H+ q9 a - ; X != 0+ @- H. d% |& Z% O
- LDA Bullet_X_Speed,X9 N! k9 n6 n# u5 I
- BEQ Bullet_Direction_V
5 V$ F( b; ~$ V0 b* b -
O$ b/ g3 B! \" i3 h0 Q! \ q - LDA Bullet_Y_Speed,X
4 o9 C) g) F5 |8 g8 E - BEQ Bullet_Direction_H
$ b5 w4 a6 L" o+ v9 ] -
4 E/ s1 |$ S9 s& |) J* } - LDA Bullet_X_Speed,X
) T. I+ R' d: w/ w r - BPL Bullet_Tract_Direction_Right
3 f. v" B# p6 P' s8 {5 v - Bullet_Tract_Direction_Left:8 m+ D3 Z5 L" n; E7 t$ \0 Z, s; M
- LDA Bullet_Y_Speed,X
( p( l5 h& ]0 c# Q$ ~ - BMI Bullet_Direction_Left_Top/ ?. ^2 {& C9 C, R# v/ n
- BPL Bullet_Direction_Left_Down+ [, F" K9 o2 c3 u6 M
- Bullet_Tract_Direction_Right:- B- l a' `- s( |% f6 a
- LDA Bullet_Y_Speed,X
2 D, o' H! T# `/ H. F: j - BMI Bullet_Direction_Right_Top
- l! O8 ~9 G1 ?4 w. V# l* ? - BPL Bullet_Direction_Right_Down
1 K+ s6 L5 ~! Y f( } - Bullet_Tract_Direction_End:$ m# r( v7 G K5 A
- RTS: Y: }, Y) [' o9 a$ a
; L# L! j' p. F1 D( R- Bullet_Direction_Left_Top:
: ] ?2 H& ~- f; \9 } - LDA #$25) I1 }% }9 s+ n$ X) A0 F: w* f
- STA Bullet_Icon,X" e* G: c" d- i1 a" }1 y
- LDA #$C0. I( y) `/ I* t V; m" P! ]
- STA Bullet_Direction,X D# a! |+ [* B$ L# C! R8 }* M
- RTS
2 A' i* [4 W- K$ V0 h7 Q" ~ - 0 T. S- B J! B' i
- Bullet_Direction_Left_Down:+ ^3 ^. L4 N: B& e
- LDA #$25/ C, ]6 c' q$ n& @6 |$ n
- STA Bullet_Icon,X) O0 n+ ] j0 h( k2 R8 r
- LDA #$407 S; F* R" ]% M, k: k
- STA Bullet_Direction,X
# J8 o7 T+ d+ }- Z- O4 |! r - RTS& c0 t' O# F6 \2 F- @# M
- 3 T7 \( j) ~& \ e
- Bullet_Direction_Right_Top:7 ?% X# b! [: Y# @; e" Y/ R4 A7 [; K
- LDA #$25
& g* ?9 t; I) L' d' j$ \6 N - STA Bullet_Icon,X/ t* U7 c5 [1 o J# \) p
- LDA #$80
! d' n( |# I' \! ]* b2 m' h; I: [ - STA Bullet_Direction,X! B1 G1 O- v, M2 h; p
- RTS' o0 M6 y+ G" J& i1 H" B
9 w6 b; C. A9 q- Bullet_Direction_Right_Down:
* V. M4 a. P9 n9 O( | - LDA #$25( q% H( l: e% y8 |$ O
- STA Bullet_Icon,X/ @) k, |5 I, H) M* X5 m4 t' _ Q
- LDA #$00
& f( T) a6 M! Q; P. J - STA Bullet_Direction,X& D" i' J7 q" Y2 v2 M: e
- RTS, o% M! L, Y# a. P
5 h7 F1 i3 @+ ^4 m! c- Bullet_Direction_H:6 N1 R5 M) g. m$ y, Y8 p+ y
- LDA #$246 n* p, X0 o3 o, z
- STA Bullet_Icon,X
0 I% a" s; l) d' M, j. ]% ~ - LDA #$00- L B: B1 t# D$ w; F
- STA Bullet_Direction,X
, D' j0 U N7 F1 [5 @ - RTS
5 G7 ]! T4 Z9 e1 a
3 U1 B E' ~6 ]/ ~( l5 {- Bullet_Direction_V:# v" _: B \; S: Z3 x
- LDA #$23
, H% ?& I: [+ L% L \$ U - STA Bullet_Icon,X
. `' N# l8 z# g; V' A' U% d4 \ { - LDA #$00
6 A7 @$ h4 q. j/ L$ A - STA Bullet_Direction,X
% ?. u- o3 `* p- O - RTS
2 U! b' @+ t# Q; X& w7 N; S* V
2 w: ]+ u2 Q" U7 k( z- Bullet_Speed_Data_Ex:, |* W# x4 j( b/ p( H
- .DB $01,$01,$02,$02,$02,$03,$03,$04,$04,$04
2 {# s) w" K- a1 W) o) q - 5 [+ ]0 E9 t6 w9 R$ }2 O
- Bullet_Speed_Data_Ex_R:$ U7 V, I, L' u5 \+ f9 [
- .DB $02,$02,$03,$03,$04,$05,$06,$07,$08,$08
: ?1 x2 A7 s& M/ p0 L9 G -
复制代码 ! H1 Q) x2 i/ J" O+ ]) Q0 y" J
+ s S# z; l# j; n( V' R
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