|
|
还没有账号?赶快去注册吧!
您需要 登录 才可以下载或查看,没有账号?立即注册
×
% ?/ n3 C4 P( @- q8 E7 f/ v这些天想了想怎么给LCD做丝滑的动画,稍微想了想,便有了下面这些代码。
& L( e% L% Y5 `. y& Y2 o, R6 o- importPackage (java.lang);
" t3 P9 Q" m4 i3 _0 H5 L - importPackage (java.awt);( L; p0 \- W# o E
- ) T! K* g5 X' `! Q: d( v( \- `
- include(Resources.id("mtrsteamloco:library/code/face.js"));
/ f) j% B- Q( b6 ]
1 C, ` K8 _1 P7 L- N/ [- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);
' ^4 s1 a3 A6 A, _! T- @: _, `3 O+ @ - - K. a6 r8 e: K) e
- function getW(str, font) {& g, S6 _' B1 D2 M9 l' Z. C; C
- let frc = Resources.getFontRenderContext();
3 Z# V& c; I( L. B' l. V - bounds = font.getStringBounds(str, frc);
; B! g' |+ x& S8 ]/ e1 w% Q - return Math.ceil(bounds.getWidth());
; z g/ s) i7 s2 n - }
( }7 b' e/ s9 N3 {) Q+ @! g" v
l6 N/ x6 ?0 r+ ~& g3 ], Y C" K- da = (g) => {//底图绘制
# F% _# L9 i7 _' P0 f1 B; p# R - g.setColor(Color.BLACK);5 J9 H# Q( D- S
- g.fillRect(0, 0, 400, 400);
$ P! P9 {) ^6 @7 P- \( f - }8 [) u5 |: l* U$ `
- ~8 {. a# C- d. J
- db = (g) => {//上层绘制
$ Z+ ]1 f- C0 | - g.setColor(Color.WHITE);$ o {/ @" w7 T# U: B
- g.fillRect(0, 0, 400, 400);
6 j. P6 k$ g$ D5 Y, t4 s - g.setColor(Color.RED);0 ]! k. k& k+ M) h
- g.setFont(font0);
, \( D8 B2 A3 L( f, C/ N$ T - let str = "晴纱是男娘";
3 a( i1 ~6 Y" S3 d; z - let ww = 400;
' Z$ G3 U1 s: N9 M0 \- ?0 T, a) p v - let w = getW(str, font0);- o( i4 L. T+ M% a
- g.drawString(str, ww / 2 - w / 2, 200);
- m& j* I1 ~7 ^+ m - }' v. x- Q: l0 }2 {
- 4 n- y' t0 M0 \$ W
- const mat = new Matrices();
; B! q! f( z' l8 B( K - mat.translate(0, 0.5, 0);0 ~, D9 p7 ?2 X# l9 [1 V! W, c) V
- , F; @' S: `: C o
- function create(ctx, state, entity) {. D# c" @7 K: N0 W& ? i
- let info = {; n( Q; W, c0 c, d
- ctx: ctx,
1 G% Z% f7 P# l1 \4 ~6 o! ?" T3 Z j - isTrain: false,
* {3 M2 c4 V3 h2 a! V5 P% m* f( _% z& X - matrices: [mat],
. p4 R, a7 S% s# J - texture: [400, 400],2 [ V( A x. ?% @' L9 ^5 c; R
- model: {6 S, O3 m& F2 [
- renderType: "light",9 R. m, _, m5 I; m
- size: [1, 1], G6 y" b9 U2 O& s4 ^0 v5 {
- uvSize: [1, 1]. w+ z& y- e6 R5 M" w
- }; |* ^) b3 j$ X0 j9 i& x& Q7 t: d* h1 |
- } Y2 \ r J/ t1 }" ]2 v
- let f = new Face(info);& f( f" P- U, G! k/ O- g6 I
- state.f = f; X$ d0 k1 M9 Z" c! F. P& [; N6 u
- ; X1 b7 \) N# i- x4 e
- let t = f.texture;
" \$ k/ D' F; C! f/ X. y) I8 N7 q8 a - let g = t.graphics;
0 t+ a$ h' S+ x* n O - state.running = true;
8 u- {) T& a3 d* I) d+ t% `" C. _! g - let fps = 24;) N0 o- A7 I- X% J- K
- da(g);//绘制底图2 C8 @5 E1 g) j$ V7 B
- t.upload();% q, Z7 ]1 }; C% e
- let k = 0;2 L: h* ~' x' S4 P: E' c- ?
- let ti = Date.now();1 S; e' N! C2 N& v* M
- let rt = 0;, F, v/ e( `) O0 V- E9 Z1 u: e
- smooth = (k, v) => {// 平滑变化
. Y y N: J' |% S; `+ W/ o - if (v > k) return k;
7 {! o0 Z/ H/ c8 A - if (k < 0) return 0;
6 f2 j) D' p" H- e9 } - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k; y# B9 a3 l3 S
- }
! m; @% U: x- F - run = () => {// 新线程# \4 e5 K$ w+ |: V' |
- let id = Thread.currentThread().getId();$ i& [& Z1 s, ^
- print("Thread start:" + id);, n" F; r* Y& e+ w1 G) p
- while (state.running) {4 P/ ^4 J" ?1 z, x+ V7 B
- try {
! B1 @# C& ^: m6 ~4 m - k += (Date.now() - ti) / 1000 * 0.2;2 V3 ~4 n; {6 e3 b* U( p( a
- ti = Date.now();1 X4 {" C( T/ Z0 y9 B, b! n. _
- if (k > 1.5) {
o( c# a$ ^0 t - k = 0;
. c) R3 F( H z* B, `, @ - }# l5 [1 E2 m7 m. P
- setComp(g, 1);+ |% R9 n3 o. m' {( L8 g4 l0 U7 V
- da(g);6 v3 `' u: T/ i7 G9 S6 Z
- let kk = smooth(1, k);//平滑切换透明度
2 v9 D; s- ~3 l4 k( `5 p - setComp(g, kk);' l- c! N" E; j0 b5 W
- db(g);
2 m# \* i p2 F0 K - t.upload();
9 T0 w! X* z, g* {/ g* { - ctx.setDebugInfo("rt" ,Date.now() - ti);
; |! q' e" Y* D& b - ctx.setDebugInfo("k", k);5 S$ G% i7 G: I5 w$ s: ~. k$ o+ x
- ctx.setDebugInfo("sm", kk);0 V4 y# V$ K( Q8 B) H
- rt = Date.now() - ti;
9 ]; U1 S( E3 S6 A. t' R( c - Thread.sleep(ck(rt - 1000 / fps));& j/ n% z! t/ G9 A$ b7 V- Z( e6 w* C) P
- ctx.setDebugInfo("error", 0)
& I* z! J. k5 G) C$ S& R, j0 w u - } catch (e) {/ H: k' S6 ?) n: `! ?- W* Y$ D
- ctx.setDebugInfo("error", e);
5 k, ], E' y' Z* c" O8 ~8 W - }( @) f) z1 q6 l4 j
- }. U$ K, t- r4 a3 J0 L2 X
- print("Thread end:" + id);) c3 b4 g3 z3 w0 y8 |7 N% b
- }
. I8 G$ G' p) ~& D/ ` - let th = new Thread(run, "qiehuan");
4 r: I, j d0 }, r: ] - th.start();
3 f' P9 u% i# l( F6 k# }# { - }9 E$ b+ H: k2 J I( J) O
% |& [* i! K8 L7 I+ Z/ u+ i3 e( z- function render(ctx, state, entity) {
2 H9 S% a m& j8 p6 i5 | - state.f.tick();
H1 a5 ]2 {* c7 m - }
5 m! v- q1 D8 C6 a: l - 7 N) D" B q' W/ g
- function dispose(ctx, state, entity) {" n$ w+ F( V8 n9 N A5 n( `
- print("Dispose");
! V" u- r: ?3 n/ C# X4 D- E; \ - state.running = false;
# Y% z# K, c& R, P$ S* G7 t. m( N - state.f.close();) c8 `1 p- U5 F. q4 e/ S* N
- }- u3 C( ]- _6 e0 d
- + S% F6 X' M! k( C% Z0 w
- function setComp(g, value) {
/ Z& J3 R2 F1 q k0 V* } - g.setComposite(AlphaComposite.SrcOver.derive(value));) P3 z# W, h% x: r7 U4 ~' b
- }
复制代码
) s/ R* A0 a# f& U4 |写了这么久的js,我便渐渐发觉使用 render 来写更新内容有局限性,比如说会拉高延迟.....等等(但可能也没什么影响?)。在这里我用新建 Thread (线程) 然后在新的 Thread 里来处理图片更新逻辑,实现丝滑切换。
% q2 G% a3 b6 l0 ^& ]6 O1 f+ t! a+ N2 C' d- a4 \5 s- G; u& H, p+ @
* \! `0 O3 P1 F* }* n; k# C v# g! x/ w
顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下)
) | z L! e6 \4 ?" h0 o |
|