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[FC][魂斗罗][J][追踪弹]
2 \5 ^0 q" Y1 F6 V( M z
& i9 N. G% f# h, h时间:2023.04.300 G# a/ y( O4 S. S, u' ~
作者:FlameCyclone
+ l) `. o3 Y3 h) L: i内容:6 E6 V" | A- d" K( @
1. 所有子弹追踪敌人
4 j( e8 T. J) z' Y 2. 选择键切换武器, r2 t( `8 v; B( a. T5 [ `, [
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
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( k; o4 x% C7 Y7 P/ P4 V( d0 B3 Mflamecyclone.ys168.com! R; \& }$ U: z W: j! P& i7 q

. \) x& h N( }0 t7 J; p' |: C- Bullet_State = $0438 ;子弹状态 0:不存在 1:存在 2:销毁
' |" ]" X8 T2 R5 U) } - Bullet_Type = $0388 ;子弹类型 0: 无 1:普通 2:M 3:F 4:S 5:L
. u, O7 J6 m* \# _* s; _: o - Bullet_Icon = $0368 ;子弹Icon 普通:1E M:1F F:22 S:1F-21 L:24(横向)23(纵向)25(右下) c7 m6 q9 v* z8 q' {: a" {
+ d/ D4 W3 n* p' W$ X e, ~3 }+ A- ;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)4 p* [" i: x' x1 E% `% J) z
- Bullet_Direction = $0378 ;L子弹方向 40左下 C0左上 80右上; M, U% O6 J4 O( A; i* ?
: }4 H# O0 K! f, G- Track_Enemy_Index = $6000, I6 a5 i5 x& O2 g1 S4 r8 R
- Enemy_Index_Begin = $6010. O% r$ ~% D7 F' S3 R5 A m' h" n
- Enemy_Index_End = $6011* X r5 j! ^# m5 }* _, x
( t. R0 l2 S8 c9 R$ ?- a- Loop_Index_I = $6012
5 R2 Q& ~" ^/ @ - Loop_Index_J = $6013% H% e2 t) z, x* l7 S5 u+ G
- nEnemyIndex = $6014$ d# }3 J5 C% B" s) y! }
- Data_buffer = $6015' z/ u' H9 w4 m1 \4 J) m- G
2 Q0 c9 X5 X& r( ~# m- Bullet_Y_Pos = $03B8 ;子弹垂直坐标
" a. z% j! j4 q, | - Bullet_X_Pos = $03C8 ;子弹水平坐标
* _3 A) a/ B, l6 i - Bullet_Y_Speed = $03F8 ;子弹垂直速度( d5 ^$ P0 T! T/ g
- Bullet_X_Speed = $0408 ;子弹水平速度! ~$ B( W4 V# o0 h
- Bullet_Z_Pos = $0418 ;子弹Z坐标
1 V0 b ]7 N& x - Bullet_Owner = $0448 ;子弹所有者 0: 1P 2: 2P
1 P: B/ v# e3 i, K
; T1 {& x$ n, U0 C- Enemy_State = $04B8 ;敌人状态$04B8 5:弹起爆炸 0:不存在 6:下落 7:原地爆炸" o# P7 P$ F. V7 e
- Enemy_Blood = $0598 ;敌人血量3 Q) I. H4 j$ Z5 f9 [8 G% |
- Enemy_Type_Addr = $0528 ;敌人类型$ U( \5 ? Q: S! l6 x
- Enemy_Blood_Addr = $0578 ;敌人血量
7 [# I; x9 Z" i+ {. k1 h- p0 u - Enemy_Y_Pos = $0324 ;敌人垂直坐标( t# z' i+ o$ s% f
- Enemy_X_Pos = $033E ;敌人水平坐标# J0 V. \/ e" b8 B U6 E
- Enemy_Y_Speed = $04E8 ;敌人垂直速度2 \5 P& m& \$ N0 x* ~+ 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( p! O) R- a# S: L; a
, q& J: Y3 I+ `: R! V) W; X0 @- Enemy_Index = $83 ;# A/ l7 |- q u- f: d. U
- Time_Count = $1A% p, v; w$ X8 o1 D4 x4 X* K! W
- Track_Bullet_Speed = $07 ;分配子弹追踪敌人频率
3 o' M! P# w- V: t5 ] - Track_Enemy_Speed = $03 ;子弹变向追踪敌人频率2 E. Y, |" G( I& f( c
- - ~: U# h, q4 b( v4 }
- % @, L' t% W# b3 l' y" b
- .ORG $6100! ^+ G/ J3 y+ H6 \0 E6 } B
- Process_Begin:: u' y* M" v7 v
- JSR Enemy_Check
g/ A+ o) E! c( h - JSR Track_Enemy_Check
. d9 v* e+ @6 H& z - Process_End:) b0 b& `) G5 ~; o! I
- JMP $E54F
, `0 ?, K6 Y8 I U/ E' @) Q2 {5 P. V
& C; g F% b- D) y. V8 j; X- Enemy_Check:
4 l8 o" ]. ?- z - LDA Time_Count
( C6 o4 E' w- V( p0 [6 d - AND #Track_Bullet_Speed
5 N/ }6 k0 X) w2 W% c% e - CMP #Track_Bullet_Speed
, [( }7 [; V+ Y% L# w" i } - BNE Enemy_Check_End6 j2 O" x0 x' A1 n$ K. O @0 p' C
- LDX #$0F4 G$ m* b1 n- p# n/ J
- Enemy_Check_Begin:5 S l$ w; E* s& y
- LDA Enemy_State,X; R2 m* k+ Z+ R1 C. {% [2 o
- BEQ Enemy_Check_Continue) Y6 l+ Z. V4 L/ \
- STX Enemy_Index
4 T2 P$ Q( M1 r& g - JSR Find_Begin_Enemy9 A' _' l, E4 G/ }0 d. W2 ]
- JSR Find_End_Enemy$ P+ E! {2 Q& H3 i! E
- JSR Bullet_Track
. N. D& H7 S z1 ]. C# o' l -
/ h, \9 O( P$ j$ k* Z - LDX Enemy_Index. Q% ^9 u5 G6 r& u1 e* m8 x
- Enemy_Check_Continue:5 y( \* p5 P; S8 W0 s
- DEX
% T& Z! j$ k8 Y) Q$ E! A5 ~1 k1 Z - BPL Enemy_Check_Begin
- H" E. ^% G Y7 H5 w8 p% i& D - Enemy_Check_End: c, D; E6 [5 L/ Z! z# t/ i
- RTS3 J6 B. q0 t" T2 k3 j& _- M4 l' ?
- * d* d5 v& M; y8 E6 K! x
- Track_Enemy_Check:0 Q* B6 l8 b' G# I
- LDA Time_Count
% c6 h8 [. b) ^. n0 n9 T - AND #Track_Enemy_Speed
, ]( _# {9 c" p# u. Z/ E, @. k - CMP #Track_Enemy_Speed
3 [8 f, x( K" m1 H' m) G - BNE Track_Enemy_Check_End& w- T( c0 Q5 X9 s i( x' T; u
- LDX #$0F
1 _! i6 C/ d/ o, x1 v, ?+ }4 p - Track_Enemy_Check_Begin:
7 G7 K- w; X9 L8 y - LDA Enemy_State,X
% e1 q+ E8 T) w+ a0 w, r - BEQ Track_Enemy_Check_Continue8 Y% K9 Q% h4 `3 f( k. h
- STX Enemy_Index. ^$ I+ |# R- e( m W" p0 y6 g/ a, L
- $ A( @- _) @& G+ D. m+ D7 x
- LDA $40( y# m0 o$ p0 ?' K5 {
- LSR8 A O1 m! V: L7 ?, P7 C4 W$ Y
- BCC Track_Enemy_Check_Begin_L1
' f& V1 b5 s8 W( b2 ?2 g$ U$ L -
1 {9 D" w5 ]- q+ ] - JSR Track_Enemy_Ex ;2, 4* S# }8 D& g7 f: u! ?
- LDA #$00 K$ Q4 F4 }* Q
- BEQ Track_Enemy_Check_Begin_L2
4 k# l" P1 N+ [! Z' l2 O8 x0 s/ Q -
4 n( }7 B1 l, B5 @* F - Track_Enemy_Check_Begin_L1:
. h* W/ J& o; E. l: O |: r9 \ - i% C% h" t# ^4 w5 m$ l
- JSR Track_Enemy- {5 | |9 W: r: T: i
* M8 o" l% {# @4 x( ^. S7 |- Track_Enemy_Check_Begin_L2:
1 @' _, q' h( \/ _- b9 E2 n - - n$ x1 s. ]/ _- r9 U: G! o$ u
- LDX Enemy_Index% f V& P. p5 B; G4 b$ n1 o
- Track_Enemy_Check_Continue:' c" i- i+ i y' p5 C: ~6 a( p% m
- DEX( t9 C: G: R; G4 \" Y
- BPL Track_Enemy_Check_Begin4 \' Y/ w. A" Q2 _
- Track_Enemy_Check_End:, u; `0 ] I5 Z! m1 M* o
- RTS1 o6 k& R l$ I0 I/ H+ {
- . N$ a P+ r$ a2 o& i- H8 V
- 1 K: m: J& }* }$ b; }* P* f
- ;查找第一个敌人0 c; Q' L2 Y$ Z- t/ k1 W* j6 N
- Find_Begin_Enemy:: O6 o$ p8 o/ X. x# H& s4 }
- LDX #$00
7 e9 x3 x1 P" e9 h2 F - Find_Begin_Enemy_Check:8 [8 Z7 X6 }( u- h5 Q, l; L
- LDA Enemy_State,X* O+ d. T) m. D
- BEQ Find_Begin_Enemy_Check_Continue# I" L# A) u7 w" a. s3 ]7 D
- LDA Enemy_Blood,X
3 l x/ P* E1 P2 A. r - BMI Find_Begin_Enemy_Check_Continue
v3 S9 S9 `3 J3 D - BNE Find_Begin_Enemy_End
- |3 R7 T3 h6 D& p4 H -
* ^ \7 B" g) q4 i# l* {, a: U: ^ - Find_Begin_Enemy_Check_Continue:0 k7 y3 C- ^; H& s( n3 M
- INX* }- A4 v% ]/ S4 e0 h9 |
- CPX #$10
$ U3 K8 ~( ~; d5 |' k/ O - BCC Find_Begin_Enemy_Check+ q; } M b: e& ]1 f
- Find_Begin_Enemy_End:
$ Q' u' v" c; W+ z7 S1 d* j - STX Enemy_Index_Begin |. i( R1 ^% f8 S( A2 r4 x
- RTS
4 s) x3 D. V _
4 L* r0 G6 i5 v! W- ;查找最后一个敌人
' @5 t- Z, O& G- @8 e - Find_End_Enemy:
, B/ o/ `' G6 \6 w5 \. d u - LDX #$0F
: l/ e8 ~4 l1 C2 G3 f( X" c7 S - Find_End_Enemy_Check:9 Y6 ^5 H7 r( N7 D/ w' a
- LDA Enemy_State,X
$ c; j1 o3 t* P+ P( w - BEQ Find_End_Enemy_Check_Continue7 `# P9 O/ h V4 W( {1 L
- LDA Enemy_Blood,X
# N. z# g9 y( R. s. A - BMI Find_End_Enemy_Check_Continue
/ v3 A" r$ x. U3 \ - BNE Find_End_Enemy_End
: u3 ]6 Y2 Q% C- v/ |4 f6 S -
& c) @5 l! c2 M& D a! A1 w - Find_End_Enemy_Check_Continue:& s! _2 X0 @/ I+ s1 _
- DEX
% e2 S h2 v) }% [8 G" K - BPL Find_End_Enemy_Check
- K4 k Y8 c6 L$ F# K - Find_End_Enemy_End:" X- e/ P/ |% f- H2 m) `7 K
- STX Enemy_Index_End3 p: b. g. Y+ |: T) Q6 [) L( l- r
- RTS
* W7 b6 M$ w( |3 M. D1 ]$ c1 P
7 E& @$ H7 T8 U# ]5 e* p- ;子弹追踪
1 `6 n/ u) M: `1 t4 B7 i7 w( C - Bullet_Track:
8 r$ k M! u) }+ t* Y z2 q( f - LDA Enemy_Index_Begin
) r; L( g1 T0 N" q - STA nEnemyIndex ; int nEnemyIndex = nEnemyIndexBegin;. _" R* ]0 E, o3 j( A9 q. Z# N' i/ d0 v
- LDX #$00
6 a+ o7 p& y5 |4 _* Z - Bullet_Track_Check: ;for (int i = 0; i < _countof(nBullet); i++)
$ j$ Y2 U; k) X# L' L' P - LDA Bullet_State,X1 P+ F9 g( ]2 O
- BEQ Bullet_Track_Check_End ;if (0 == nBullet[i]) continue;5 f& |) @8 ]5 o+ [
- STX Loop_Index_I2 T& p# m5 B: I- r+ h
-
: w/ X e7 I5 M( n: k - JSR Bullet_Track_Enemy
V' i6 |# N$ d& P8 L0 ?- C/ q( \ - JSR Bullet_Tract_Direction
1 K$ Q: r( v. s -
/ h# F6 V0 a! _5 R5 g - ;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/ {2 m1 z! u) Q' }4 X
- ;if (nEnemyIndex > nEnemyIndexEnd) nEnemyIndex = nEnemyIndexBegin;
' ]- ^- B0 E% ?) F v& O1 h - LDA nEnemyIndex
0 J) l& S0 a8 ? T- N - CMP Enemy_Index_End
7 [$ O! b K, X+ Z1 I u g - BEQ Bullet_Track_Check_Continue
: p( ?, y0 ~: A$ m; r; l! M - BCC Bullet_Track_Check_Continue
1 h* b; V5 n" E' b) _ - LDA Enemy_Index_Begin/ r- l6 M7 n3 H' K' [1 K5 }
- STA nEnemyIndex4 `5 F6 G6 I+ o1 ~5 o5 ]# M
- " s3 e% G- n' ?, o( J$ g& O
- Bullet_Track_Check_Continue:" a: ?8 m6 {) X. O* A
- LDX Loop_Index_I
8 [% U1 X; ]4 ?% @. O2 U - Bullet_Track_Check_End:- t+ H! p; }/ T- W4 c2 o
- INX2 q+ ] b4 b5 a3 c/ f
- CPX #$10. s8 {# A2 o6 R: X2 G6 y$ G; }1 {7 v
- BCC Bullet_Track_Check
; ?1 {; ?9 L. x- q# r2 n. z - Bullet_Track_End:9 u7 Q' b2 {! j+ F* N" ?7 W) |* d8 U
- RTS
; } M6 k& p/ ` ?1 ~/ }( e2 E - 2 {1 [; J+ d& ~( Y
- ;给敌人分配子弹+ l- Y( Q. `$ G7 U U, F
- Bullet_Track_Enemy:
( q! e& L+ Q( r1 b) N5 l - LDX nEnemyIndex ; for (int j = nEnemyIndex; j <= nEnemyIndexEnd; j++)0 w- @ N; W) m' s
- Bullet_Track_Enemy_Check:4 {' l3 f. J1 u C+ X' n b# ?+ q) }
- STX Loop_Index_J3 j3 V* j; r0 h6 |# _
- ( i6 a: _; d: Y8 r* c/ j
- ;if (0 != nEnemy[j] && -1 == nTrack[i])# d9 T. Q4 }5 s* ~) e$ c, G! L
- LDA Enemy_State,X
6 h. K- a/ S. D& P - BEQ Bullet_Track_Enemy_Check_Continue) L2 p+ v' ]2 y4 G7 ?
- LDA Enemy_Blood,X
" {* K7 k; v1 Q5 I7 t7 E9 g - BMI Bullet_Track_Enemy_Check_Continue9 A6 V( ~/ E b+ c* c
-
$ ]4 C1 K2 P% h6 g) v - LDX Loop_Index_I6 r0 L L8 S7 m/ ?
- LDA Track_Enemy_Index,X
8 u8 }$ ]$ \' z7 @$ b1 L - CMP #$FF9 d: c4 ~$ s$ S5 V! Y
- BEQ Bullet_Track_Enemy_Init9 S- U. S) H9 H$ h
-
% i& I3 e- H1 l1 }) b d - Bullet_Track_Enemy_Init:+ X6 j2 _0 ?5 Z) o8 N5 T
- LDA Loop_Index_J
0 [% ?& @" O/ j - STA Track_Enemy_Index,X ;nTrack[i] = j;
3 C2 h6 {0 Y- @& }# b* L: ?- ^ - $ o3 u0 Q0 P3 u. Z& r
- STA nEnemyIndex
4 V; a4 j0 n0 @' i( h - INC nEnemyIndex ;nEnemyIndex = j + 1;
& O/ a" I) z# {$ Q1 i- ?' W6 R - RTS ;break;
8 N9 C/ B6 H. p% X. h - 8 V) { \ V: F% t
- Bullet_Track_Enemy_Check_Continue:; `1 q! @5 u& Y+ W, [
- LDX Loop_Index_J
/ Z5 H) o& N$ h2 X/ q- ^4 G( T - INX ;j++
! l# }8 ?: r( \0 U& { - CPX Enemy_Index_End+ O" M, k, v2 [
- BEQ Bullet_Track_Enemy_Check
4 e. k& L, W; { - BCC Bullet_Track_Enemy_Check
% L+ j. M# B5 V6 Y' ] - Bullet_Track_Enemy_End:. H, c9 {2 @5 n' x
- RTS$ R9 R$ F6 a: s. f; r1 o
- ) q, [3 k1 _$ V4 Y
- Track_Enemy:
0 B( I4 [. W& b! i - LDX #$0F
! O, {4 E0 S* N( c& Z8 Z D - Track_Enemy_Begin:" E- ?( {: Q/ C0 _ q3 {. B" d
- LDA Bullet_Icon,X
/ M# Y' {( I: E4 i7 m - BEQ Track_Enemy_Continue
1 ^+ [9 I, y9 v* ^' C7 J! \( @- m0 K - LDA Bullet_State,X
( ^4 w0 ^+ g9 G) Y - CMP #$01
8 C+ D7 Q, T6 x7 a A' u - BNE Track_Enemy_Continue2 A. \4 \3 I0 M; d
- % {4 t5 ~: c& x5 F- c+ G' ?4 H
- JSR Track_Enemy_Process; u( `5 F+ j( S, w) |4 F- k
- - p5 K* l+ Z1 n0 \! s1 g
- Track_Enemy_Continue:
2 K# P- C, f0 g K- a' r - DEX/ i9 _ A- A% E
- BPL Track_Enemy_Begin
- R" R" R) Q; K# {$ A) W - RTS
* N' G4 [, ~# d. u; N8 X! ]! q
( x! e% s# {; e+ f- i- ;普通关卡4 C, q, n- ?( r7 j+ @
- Track_Enemy_Process:
: C6 ]7 n- m' d1 X! V& X* p - LDA Track_Enemy_Index,X
; h+ j2 _" q* \; v2 X! ^ - CMP Enemy_Index4 ?& X5 c% D6 T) C1 y4 L
- BNE Track_Enemy_End
' b8 y: F5 A( ?; l - LDY Enemy_Index
. _: R4 Z, W( e- X: n+ I; x: N B" l - JSR Track_Enemy_Y+ O: |& x, t* W) N. r+ b8 i
- LDY Enemy_Index
; R& z. w0 ^8 K3 E1 k5 r$ e+ S - JSR Track_Enemy_X
9 E3 h0 v u5 G' ]* f) Y3 O - Track_Enemy_End:$ X, g b0 F6 c& F. W7 a
- RTS. p3 g" k4 i3 v7 C+ \2 W/ x0 m
- # t3 S3 q5 l9 l1 h/ ~( @3 t+ W
- Track_Enemy_Y:
- o+ q/ O) l( V$ H+ _: @1 D - SEC
3 f# n. N) I9 T3 s& B$ G3 @1 U - LDA Bullet_Y_Pos,X9 ~. K+ R2 F8 a9 d# M9 A8 X
- SBC Enemy_Y_Pos,Y
8 K+ n3 g* A+ L; u - BEQ Track_Enemy_Y_Equal
" Y* N/ j+ x2 [0 Y& z. ` - BCS Track_Enemy_Y_Greater
* T" r' J7 S. L/ W! ]9 y - % m& }+ R L5 h, m4 z! M0 U
- Track_Enemy_Y_Less: ;子弹Y < 敌人Y. [% i+ A/ n" [. U, @6 H
- CMP #$FC6 j4 ]% I' Z& z4 g
- BCC L1_1
7 V r0 n' X7 R" `( [0 @ - CMP #$FE! J n8 _$ [, e) e5 X& w
- BCC L1_2: Z, @' Q0 X( y0 }! i
- LDA #$00
+ C4 S" }8 c2 E: a m5 B3 { - STA Bullet_Y_Speed,X
( r, X- x; [/ E, Q7 a8 ?6 H, }4 C2 q - RTS
& m1 ?1 O; y' D' ]$ Q - L1_1: ! K; C) S/ W# I" o
- LDA Bullet_Type,X: [/ A' O A! R* @& V
- AND #$0F
' J; m8 r$ z9 _ - TAY
( w; G8 Q/ e4 I; V+ n - LDA Bullet_Speed_Data,Y+ O$ c: I5 ?4 n3 }4 \5 F
- STA Bullet_Y_Speed,X! P: a, x- Q( f8 z
- RTS2 i% x) c4 ]( a: z" d w
- 9 Q+ ]# i, y: L, g, n# l( g5 T. h
- L1_2:
) B) z9 |' c% p, b - STA Data_buffer
6 h# h! ` I/ N4 u - LDA #$00
: T& p V0 ^3 l - STA Data_buffer
0 Q2 _7 V% _6 S* ~$ M% c8 f+ I3 i: e; R - LSR' ]$ Q" C5 c! Y, \
- STA Bullet_Y_Speed,X
4 X" }, y @, _% G% R - RTS' Z5 W0 P" b9 Y8 ^
- , u& f9 f' ~7 y/ D/ `
- Track_Enemy_Y_Greater: ;子弹Y > 敌人Y; W V9 j; g4 d, L
- CMP #$04
# U+ n. o9 e3 {5 O - BCS L2_1( A/ b8 h$ \3 ~0 |9 z2 u! O( y
- CMP #$049 a8 l4 D/ p1 @3 `" O
- BCS L2_20 ^7 a+ A+ U. g& ?- K9 }
- LDA #$00
, [/ [5 j% F N* ^ - STA Bullet_Y_Speed,X' \, `; c; r! \* P2 g! i0 N
- RTS, ?# R3 n0 z; Y
-
$ x) Y! P8 L* p5 D$ j- K - L2_1:4 G/ w8 ]2 |* r, r4 x9 o" B
- LDA Bullet_Type,X
3 _% V) S/ g& ?+ s) ~" p# ~0 H+ V - AND #$0F' h; ^- Q4 j) v( C }8 ]; S2 Q1 u
- TAY
0 _7 y2 B8 ?3 [1 G! x; S - LDA #$00
; ^/ j5 @2 F! I0 ?: _4 U6 k - SBC Bullet_Speed_Data,Y% [. Z8 |0 d* T; O6 u
- STA Bullet_Y_Speed,X& M5 |2 X* ] M2 q. p' s
- RTS
( F+ T4 {' `) Q -
1 B0 D* b! l' i+ }, [8 v - L2_2:
_7 c+ i6 [' _+ b% u" p8 z - LSR
" d5 h0 s* A$ ~3 `6 H1 F) w. T - STA Data_buffer" e4 Y/ B; x9 j
- LDA #$009 A6 g/ O) F( V) R
- SBC Data_buffer
% N9 D4 X. U0 l' e; {# M - STA Bullet_Y_Speed,X, a8 D$ N I" }4 c
- RTS% g- H; D# S; ^9 w
-
& L j+ ?: s, V& w% Q - Track_Enemy_Y_Equal: ;子弹Y == 敌人Y8 @. `% H7 x% i. e5 r) g2 ?* K# V
- LDA #$00
* d U4 _5 v+ C" g; ^& s3 K3 I# M: S - STA Bullet_Y_Speed,X
0 C2 ~; y" X- U3 A- g, ~ - RTS
& J# ]! B/ a' W2 I -
: n2 r# {. l! M P3 O# D - Track_Enemy_X:5 g& P# o' O: n' |4 }$ ? I
- SEC' I8 I- ~5 }1 M# b/ _" h
- LDA Bullet_X_Pos,X; ?6 c" x B, F! d/ _5 s8 j _* b
- SBC Enemy_X_Pos,Y. |7 v+ v- F. ? h- F
- BEQ Track_Enemy_X_Equal ;子弹X == 敌人X: t0 l2 o; n$ v6 Q0 ]9 O+ E0 C
- BCS Track_Enemy_X_Greater ;子弹在敌人下方. j( ^8 C! `1 L3 n, g
- 3 P2 n2 i2 l, c: y% q4 Y7 y5 I" E
- Track_Enemy_X_Less: ;子弹X < 敌人X
. |# X* {& _2 u* B- B7 l - CMP #$FC
' G$ M) J" U$ e; Q# @$ V - BCC L3_16 g- [- s3 X' A, C8 @8 b2 V
- CMP #$FE
! b7 w) k, c' n. m' l: A - BCC L3_2
# f; [* ]6 \7 {" J8 ? - LDA #$00. C3 P- B: M- H9 l8 z- m
- STA Bullet_X_Speed,X
* l1 ^- C% [/ [1 x - RTS2 j ~1 J/ t" m4 ]) R% W& u
- L3_1: 1 `) v$ H6 g: P8 d% y6 A& b
- LDA Bullet_Type,X
V1 f; _7 e* A9 M - AND #$0F, z2 O* _ N( U% j) f6 b; T
- TAY6 y' {% A2 y1 B0 i4 p5 e
- LDA Bullet_Speed_Data,Y: j# [5 ]& C2 ?: _
- STA Bullet_X_Speed,X
3 O+ `$ C/ G- \+ g4 c* w - RTS
9 f" v' A3 ^4 d! t0 C' P5 } - L3_2: + `) g2 c8 |, ]+ `! Y2 {, ?+ W* F! c+ o
- STA Data_buffer
0 j9 N3 T, E1 @ T v8 _, o - LDA #$00
" o- q0 R5 q. G/ H1 D- e - STA Data_buffer9 c' U2 c9 v7 w- [ v% X. t0 i
- LSR. W3 X2 X4 x; G: i* B, d% t" e
- STA Bullet_X_Speed,X
. v$ U! S0 D: j% E" Z8 Z - RTS
: t8 }) e0 }7 C -
) v3 t# |2 J1 `5 _) Y - Track_Enemy_X_Greater: ;子弹X > 敌人X8 H0 H& f6 q c p
- CMP #$04
0 P8 T1 J" i) D8 h4 o# @6 ]" X - BCS L4_11 o* S6 R7 |& n! T7 T
- CMP #$02
& C- H' A) R, e. E s2 J/ B: ^ - BCS L4_2; Z9 j8 s+ t' q0 S' v
- LDA #$003 {" S' g+ S/ O
- STA Bullet_X_Speed,X
+ Y! R+ w7 i; G5 Y - RTS) b! ^4 I4 V' K
-
: H3 x* [( @' S8 {: B - L4_1: ) G: b$ ]* |5 V" O. L1 ^
- LDA Bullet_Type,X
5 f8 k% } ^4 ^5 w3 C - AND #$0F4 y* H7 D3 C" V7 G3 E) |: X
- TAY' j) ^8 U, D4 ]8 q8 [& R8 J; R' f9 V
- LDA #$00" T2 v1 T, x! e6 m/ E! H
- SBC Bullet_Speed_Data,Y' R4 i$ }9 I- ^1 N2 a% @* ?7 R
- STA Bullet_X_Speed,X$ v. A* p$ f: X4 w
- RTS
5 z3 A, W6 A; z* q( h( {" O) L - L4_2:
% b: C2 v$ D/ M; D' P0 |/ S - LSR; `) C% V- P6 o- k8 v6 j
- STA Data_buffer- x7 x8 L) M, v1 d; N: \
- LDA #$00) L& D0 J1 C5 F B m9 I' B# H( G
- SBC Data_buffer
) m( G- N% w7 a- L - STA Bullet_X_Speed,X
+ G C( e& {" v - RTS8 g( @+ D+ z7 k; A$ m3 R$ ^
-
; B, }; k) e5 d v% [ - Track_Enemy_X_Equal: ;子弹X == 敌人X
# `$ Q% f( y9 M8 z. M2 V - LDA #$00
2 w: ?. ?( p" N( l/ E- D - STA Bullet_X_Speed,X
- n9 ~" ~5 e5 k4 e - RTS
" S9 z2 C1 k" \# } - 6 S0 H+ \0 X* a! F
- Bullet_Speed_Data:5 \' x& T+ _4 [8 V4 a) X
- .DB $00,$03,$03,$02,$03,$03
' `5 U* t# r, R5 R9 d6 _ - : `% a! N7 [ C; R( A
- ;2, 4关. n, a* `$ D c' @$ W7 t6 r
- Track_Enemy_Ex:
/ x3 ^& Q+ a, e) w3 W; ]- p; ]2 r - LDX #$0F
0 P$ p$ x8 O1 y/ A - Track_Enemy_Ex_Begin:
, z; h" Q* W7 E - 1 I- w) U( x% Q7 Y
- LDA Bullet_State,X7 h9 z/ z' V% h6 o% Q0 x
- CMP #$01
1 m' Z5 M" k! Z - BNE Track_Enemy_Ex_Continue3 y$ D; x" u$ Y7 O2 J+ }
- 6 h/ z" N$ F) [( O5 _
- LDA Track_Enemy_Index,X7 f' V" B* N8 T; S1 C4 Q. L0 i& d
- CMP Enemy_Index; U) ^ X; Z! P# U
- BNE Track_Enemy_Ex_Continue ;匹配追踪目标
# b: j5 Y8 p0 D; B9 s, j3 o/ K -
& q9 M) h4 z# h$ o - LDY Enemy_Index
z! y8 d. Y# e3 R. H, _ - JSR Track_Enemy_Ex_X, e; O8 K4 c$ W" p0 i
- 6 v) o, X' A0 H
- Track_Enemy_Ex_Continue:; h1 T1 K. H) i2 p
- DEX8 v$ H" F: T5 n" N5 h
- BPL Track_Enemy_Ex_Begin
6 {1 }7 C! p/ F: r, \: P. E - Track_Enemy_Ex_End:
' ?* M8 w" q- T" b h - RTS
% D, k- g" v/ H; P - 1 ~$ |" z/ t$ N
- Track_Enemy_Ex_X:7 ]7 n( ~1 h6 t" o; q+ v* x# C
- ;LDA Bullet_Z_Pos,X
- D2 |( f3 o5 [* c& j1 V, n& W - ;CMP #$048 l$ l! N6 d2 T3 u2 h: S
- ;BCC Track_Enemy_Ex_X_End0 C$ l% w- @ Q$ t$ q
- SEC0 d1 h% S: W; c- ?
- LDA Bullet_X_Pos,X
4 y1 q. O' t- J - SBC Enemy_X_Pos,Y. X4 N0 t" `; }; [* L
- BCS Track_Enemy_Ex_X_Greater
2 H3 O$ f# a7 v - " S0 R) W% ~5 [: A( }
- Track_Enemy_Ex_X_Less: ;子弹X < 敌人X, B/ t1 D" p/ }5 b
- CMP #$FD
4 |# B ?# E8 z1 J% y. z' z - BCS Track_Enemy_Ex_X_Less_End
6 X3 P6 [* l! C" Z% m; O+ l - LDA $6020,X
6 I9 Y) J6 c" W, r9 Z. G: v3 M# Y - CMP #$2A
0 O* a# Y% _9 f( e/ z2 ?$ ]6 u - BEQ Track_Enemy_Ex_X_Less_L1; e1 I' A5 y' q I: p: y
- LDA Bullet_Z_Pos,X) K# |0 g1 \5 ]: p- J# @) b
- LSR
' z+ ~( s$ c& T& e6 ^ - TAY! B5 C3 {1 i- b2 l
- LDA Bullet_Speed_Data_Ex_R,Y# l0 `5 f4 B4 R' S/ f
- STA Bullet_X_Speed,X
& j+ S& q4 L1 ~3 I - RTS2 ~) t8 k. r. t' A
- Track_Enemy_Ex_X_Less_L1:
D! F- u, r* u9 j' C; g% @: b - W8 |# g2 U$ o& x8 I
- LDA Bullet_Z_Pos,X# z2 w! H; o, W z1 y! F* ?2 x2 y
- LSR
$ @& z% j5 o; u4 {' S - LSR
) s& M* i) X# H9 ?3 b - TAY
$ G/ P, |* `7 F5 [2 @: X - LDA Bullet_Speed_Data_Ex,Y. K; k0 l. c5 b* E0 w8 G. i: w4 H- Z% J
- STA Bullet_X_Speed,X
T; s1 t& A$ ]) { - RTS: f3 H" D% A6 F. E* z0 H) `
- 1 @; b" O! F& o7 O, H
- Track_Enemy_Ex_X_Less_End:8 \$ v& }* S/ _. ]! Y
- RTS
* [0 a8 H1 s L- j* { - ! K. i+ s- [+ K0 v/ N, f
- Track_Enemy_Ex_X_Greater: ;子弹X > 敌人X) I: W8 K, j# X/ ~5 p3 K
- CMP #$03
5 s/ l6 {: Y" B$ h1 t - BCC Track_Enemy_Ex_X_End
1 F) `; u n$ \- T6 f- f5 R" ~ - LDA $6020,X
% v9 t! k* \1 P, L/ {6 W - CMP #$2A
6 M6 w7 V0 S/ E) i4 y - BEQ Track_Enemy_Ex_X_Greater_L1
- k4 H" t; `/ G) s% i0 w6 F! b* O - LDA Bullet_Z_Pos,X
; V- q; L6 `1 C9 U/ g3 } - LSR
% J: V& I+ o+ `5 x/ g - TAY
4 N! f, i6 q# P0 O# J - LDA #$00
4 A; G0 b: ~7 K8 Y) y( U' a9 T! K - SEC, R0 Z) B" p+ u' O
- SBC Bullet_Speed_Data_Ex_R,Y
/ T; U3 V/ f- ~( X: b+ `" L8 ` - STA Bullet_X_Speed,X/ ~/ ]* G; O' `$ n: _# L
- RTS/ t" f6 D$ T9 K3 V3 G7 y. [( p/ k
- v- I3 n Z7 u4 F* ~& j b
- Track_Enemy_Ex_X_Greater_L1
3 ]/ p9 O# ^ a0 }# f4 f J- l; I9 V - LDA Bullet_Z_Pos,X
4 x8 ~6 ~ \2 z - LSR
& h4 x* q% T- Z n( ] - LSR1 N( z8 n! g6 q& m) p
- TAY
$ ^8 y, W1 C7 a - LDA #$00$ _2 b5 e0 V0 o6 R
- SEC, \7 c# y; x+ Z: N+ [3 n
- SBC Bullet_Speed_Data_Ex,Y9 {1 w i; O( w d
- STA Bullet_X_Speed,X
/ e% S, I8 H7 Q) M1 f8 ~ - RTS
4 v$ m" e/ H9 K) q* w n -
6 _$ u/ i8 V0 L" A8 Y8 v - Track_Enemy_Ex_X_End:
. Y4 k D# k8 m0 m0 { - RTS* L# a- Z1 W- W
-
" Y% R* Z. {5 k ~! v/ 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 ]% b0 \5 V Q! l9 ~4 @- t$ y" B; V6 q
- ;Bullet_Direction = $0378 ;L子弹方向 40左下 C0左上 80右上
( N* Q# L( M0 Z+ ?& a3 m5 Q& ] - Bullet_Tract_Direction:* p) Z* {' f& Q: q% Q( h6 t% W0 k
- LDA Bullet_Icon,X
/ ?6 r4 k- U% A - CMP #$23" w) O7 G. B I# a: x9 U
- BCC Bullet_Tract_Direction_End
2 b. j( E' G' A6 ] -
4 H4 l; R; w6 S* r - ; X != 0( e9 X4 N/ a" \$ \5 O
- LDA Bullet_X_Speed,X' K8 A ]0 H! `
- BEQ Bullet_Direction_V1 Q1 y) j9 g- T m: N. t
- : d& W6 s% J5 \* L% Z+ H
- LDA Bullet_Y_Speed,X% F$ S0 x; `* u4 A; g4 |% h
- BEQ Bullet_Direction_H
+ j8 G: h# m7 U7 ^) C) X. @- J4 I$ O9 b( T - : s2 S; x9 c% t/ i
- LDA Bullet_X_Speed,X
" @/ w, [& t/ H% z - BPL Bullet_Tract_Direction_Right% _& e% ^7 b" F+ X: J' O
- Bullet_Tract_Direction_Left:& w( E" L& Z3 r/ R( J
- LDA Bullet_Y_Speed,X
7 W* ]& O7 G# e% H3 w2 H - BMI Bullet_Direction_Left_Top; ^$ \! w, x1 U$ L0 C$ S. O. O
- BPL Bullet_Direction_Left_Down4 y: K h9 q+ j6 S! [7 S/ }
- Bullet_Tract_Direction_Right:
# S' ]& k" A* @1 E+ J0 o: y d - LDA Bullet_Y_Speed,X, V9 M6 h# i* u% `& p3 G4 e" Y
- BMI Bullet_Direction_Right_Top
7 X& g. e9 C, v K9 O1 H* h - BPL Bullet_Direction_Right_Down
9 u/ @( c5 G, c2 R3 c, ] - Bullet_Tract_Direction_End:$ J5 t, i3 s7 S6 q& _
- RTS! e% e5 G$ V6 R$ C1 s
7 w* R' m% L$ u$ N8 c) M) ~- Bullet_Direction_Left_Top:
7 Y, h$ y- b$ Z9 q6 U8 Y - LDA #$25& n6 r, d j/ ]2 d; F2 h( G# }
- STA Bullet_Icon,X
3 }2 \6 z6 r v2 `. V& e" }3 n - LDA #$C03 c& m7 D5 w3 ~
- STA Bullet_Direction,X
- T6 ?/ g3 A& A6 q6 R) [! |$ n, t - RTS1 N) [& } a8 ^6 y& {0 `
- 3 ?0 v% M# m; Z% g. G* I
- Bullet_Direction_Left_Down:. ^( e1 |: f8 N5 \2 O
- LDA #$25
& \) c" Z) W M" C - STA Bullet_Icon,X
e* M5 R8 H) N, b/ w6 x - LDA #$40
& j, |3 `4 Z) \* ] e& l" f - STA Bullet_Direction,X5 F- V, T8 T( q8 |9 Z; i
- RTS4 C: K: M$ q( C
- 4 U2 [! Y* [) T& p
- Bullet_Direction_Right_Top:) J- _& k1 J/ o' J' {7 C
- LDA #$25 Y0 l: W/ M# x3 T. ^) y8 y" k: |7 U
- STA Bullet_Icon,X1 e8 a1 q" R/ p( V0 o9 u h
- LDA #$80! B$ s+ v5 d% E" k
- STA Bullet_Direction,X
/ w' A# u- N/ N7 ~8 u* `+ Y - RTS- i# Y. W: |8 B
- 9 _: C4 u1 c: g( u
- Bullet_Direction_Right_Down:
8 k, |+ o8 j% I9 c, [; H - LDA #$25
, e" _6 A% m$ V# g* `9 t2 S - STA Bullet_Icon,X
. ~& t# S6 b2 g; r, D( t [ - LDA #$00* Y' X4 @8 n8 G1 A4 O/ E! r8 a& {, n5 I
- STA Bullet_Direction,X
" O) P- \7 X' Z+ j; ?" `5 P1 ? I - RTS
k& X/ _" V+ [( ?2 i& w - 6 T T, ^. K+ x. G. @' M r
- Bullet_Direction_H:
9 I+ G( i h$ e5 g; }4 t- E1 D! q - LDA #$24 a$ u' `# n2 X
- STA Bullet_Icon,X
* M* _! u: I$ m) | - LDA #$00; u' o/ o) a6 G9 u9 X1 A M
- STA Bullet_Direction,X# q% F# o( k8 C0 q0 T* x5 Y
- RTS
# b; a1 r8 d+ s" S* D+ ~; U
: a+ Z0 X9 n7 O( c W6 m1 g- Bullet_Direction_V:
N4 G0 D% S' p/ `# U9 H% I0 | - LDA #$23
1 ?: Y* C B& }1 \ - STA Bullet_Icon,X
* E4 J% K# s* V# e - LDA #$00) a* i! L3 d% F% a# o4 l6 | z1 H
- STA Bullet_Direction,X& |# {* z, l, E# O8 f* \
- RTS$ q3 x, j# X+ C/ _2 s C( {$ D `! i
4 x. j& }0 p- t6 {/ J* O& y+ o( |- Bullet_Speed_Data_Ex:- u0 X2 |$ s4 i$ {' F
- .DB $01,$01,$02,$02,$02,$03,$03,$04,$04,$04
! p# O+ x [" j3 ] -
( b! W1 `. Z! H! V2 @* N4 a - Bullet_Speed_Data_Ex_R:4 U9 v; G" m: u% h3 i" ?! E
- .DB $02,$02,$03,$03,$04,$05,$06,$07,$08,$08
- B$ `1 Y& D" @: D -
复制代码
6 s) {" D- A6 W! O! J9 C- c
1 `# C% E, |" t, @" _+ i& | |
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