|
|
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
×
* y7 ]. F7 N6 X L
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。* A6 E7 } Q. `6 i# O
- importPackage (java.lang);7 c) Z8 I5 [: K# D6 t9 B1 W- \; s
- importPackage (java.awt);* ^% d6 r- v! g3 d% w. b. z4 B
8 Q/ k L/ w. x/ K7 v- include(Resources.id("mtrsteamloco:library/code/face.js"));/ }6 h" x! D" Q, R9 v
- 2 v6 Q$ J! }2 L) |' O: q
- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);7 h( ]1 c% [! ~% q& w {2 r
9 V) g* w/ r" S' D: n r- function getW(str, font) {5 M9 J# I5 c* F6 S6 _
- let frc = Resources.getFontRenderContext();" \# m& o* ~& W# b+ ^/ J# {, M
- bounds = font.getStringBounds(str, frc);3 K+ A7 ?) G4 `
- return Math.ceil(bounds.getWidth());0 ]4 x, N9 W3 [9 `! k2 a
- }
" h7 G2 A3 H% |+ p - , T! d6 M7 t+ ]# M
- da = (g) => {//底图绘制
9 l% l; r4 t% R4 {: _" v - g.setColor(Color.BLACK);( ^- N& d# ?- K; n* g
- g.fillRect(0, 0, 400, 400);
# ]+ y! k1 n0 X0 P. H, V# |8 M - }
' ^' F b+ d- Z- W$ m7 N0 W
# w- y9 }4 _% q8 m- db = (g) => {//上层绘制3 |! u2 M6 j" V4 `
- g.setColor(Color.WHITE);
- p% |% u' |8 ?% U2 @2 U - g.fillRect(0, 0, 400, 400);
& }6 N) G0 \, E& Z) w4 w; U - g.setColor(Color.RED);) s! Y# W1 q' z+ [4 n% R- e
- g.setFont(font0);
$ d% i+ t" A' w/ V, u- n - let str = "晴纱是男娘";" j: _* Y! g: [/ ?( r: h
- let ww = 400;7 c8 i; f! Z3 [ X
- let w = getW(str, font0); S$ V! p4 }- K" _, S3 D) a- O6 t3 A
- g.drawString(str, ww / 2 - w / 2, 200);
- {; H: F! t" M# [ - }0 e& a! m3 s g, X4 H) G
* i5 l% Q" U1 ?. e- const mat = new Matrices();
8 R7 N1 [" g3 n' k: R - mat.translate(0, 0.5, 0);- B7 A" d3 o3 W1 k
- 0 T+ t( w7 `; p: w9 r
- function create(ctx, state, entity) {6 O, G" N0 B$ j1 x; z7 D" T
- let info = {
7 `3 f% c( i2 ]1 J2 T8 ~ - ctx: ctx,/ g5 f; v7 v$ d! F
- isTrain: false,
! ~2 t/ _5 _* r# M' j a - matrices: [mat],+ n' x6 @' c* X3 R
- texture: [400, 400],3 G# z3 a6 j+ U1 z8 B
- model: {
5 W f6 I1 i! E5 S3 Z; P" Z% X - renderType: "light",
d' m2 j/ `$ [" M+ g - size: [1, 1],
9 s* j% E! Y6 ~8 ~# }9 O, H$ \ - uvSize: [1, 1]; p& B4 ]4 @9 A2 e5 W
- } R, I$ K- F- G$ x. k. I, F
- }
9 ^, j& ]! A8 @! A - let f = new Face(info);1 e5 ]1 z6 B% T1 h5 }% M9 E9 b
- state.f = f;7 s( B& `* f5 ?0 y
- % D( D- f/ U6 v. e% n+ m( B
- let t = f.texture;! [. {( W; g0 T
- let g = t.graphics;
) L- N/ I4 |6 p4 k - state.running = true;# X9 }/ I6 R) A
- let fps = 24;
) B5 ^" ]" G+ U0 X, d' q' H- A% [ - da(g);//绘制底图) B# I& H, w K5 M7 Y2 K6 Q2 s
- t.upload();
* i! u! s) f; _ - let k = 0;
$ h; P3 [7 l, {$ ~4 n5 o$ M - let ti = Date.now();
* B4 q$ l; `) J2 L7 y. Z/ S - let rt = 0;3 M% ]. A, F; T6 T2 R
- smooth = (k, v) => {// 平滑变化
9 R8 b* s t _8 x1 J - if (v > k) return k;8 h1 w6 ~+ X$ L' i2 m6 t" _
- if (k < 0) return 0;
A1 J4 ?! \$ x1 J* m$ I - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;
; Q' b# P/ v' @/ v# f* b - }( _; C) F3 v% x' X
- run = () => {// 新线程* D0 I* M7 X+ K9 x4 _8 E' F; c( J
- let id = Thread.currentThread().getId();
- P9 H0 s* L4 J - print("Thread start:" + id);
1 r) y) H& _8 q- q - while (state.running) {
$ x- T: W1 a& r% r" t' `" w - try {1 c( O* B' |* b* g. y5 w
- k += (Date.now() - ti) / 1000 * 0.2;
& i) l7 S' m/ D$ J7 ^8 s- G1 N - ti = Date.now();
% p- |1 L; M+ P% t - if (k > 1.5) {
- a6 Z! P( u# S3 L& w# D1 h - k = 0;
1 s& C- T* ]7 h, D: L% j8 ^ - }
, n5 k/ R h& K3 R8 f- t% C% K - setComp(g, 1);2 O& `! u, {8 H2 x( i
- da(g);
# n% x' m& L+ R% C$ T - let kk = smooth(1, k);//平滑切换透明度
+ F! Y U3 C( I `7 N - setComp(g, kk);, u" O& y% |: Y
- db(g);/ M9 I9 I; A. Y4 f7 n
- t.upload();# K+ ~4 v2 j5 P
- ctx.setDebugInfo("rt" ,Date.now() - ti);; Q( K- ^, \& R9 Z q* M" N
- ctx.setDebugInfo("k", k);
$ f9 h0 X9 `( y1 Z. n - ctx.setDebugInfo("sm", kk);
# z+ _! H* d) q6 ?6 L. t: T/ n - rt = Date.now() - ti;
6 v: m7 p: h: S1 s: y6 \- E3 X ` - Thread.sleep(ck(rt - 1000 / fps));. B5 k0 G, C( T" w9 X6 R; L
- ctx.setDebugInfo("error", 0)8 l5 o- k: i: w/ ~5 T7 C
- } catch (e) {
' I) U/ Y ^0 c- ~: `( n$ R - ctx.setDebugInfo("error", e);
1 ^+ n6 d" R$ w" x" P) H" b - }
0 h. m- S% D" A5 q0 ~ - }0 C% b, D* K$ R7 U* M& ]
- print("Thread end:" + id);
/ \' P5 W" \, ]! E9 O0 s9 ` - }; h2 {: W8 U% \( j% S
- let th = new Thread(run, "qiehuan");' _- u- ^, `+ Y% o s6 W
- th.start();
9 M/ i9 s3 O% D& M5 t& A - }
: ~1 T' n8 n0 s0 s! P# O1 m
8 ?1 ~ ^, D% ^4 M0 d- function render(ctx, state, entity) {
+ q9 e$ M& ^) Q% A! C! r( p" T+ g - state.f.tick();$ a( _) r: x6 ^" {1 h' ?
- }# l5 h% r u: j8 d8 L
% }- P3 K0 F1 e4 y ]- function dispose(ctx, state, entity) {
* J8 p9 b; {' V3 K0 v; V - print("Dispose");" T6 @# m. j: b4 L0 }$ w
- state.running = false;/ L9 z- m' M. t. d! }. f0 c! T
- state.f.close();
4 b" l; b# L# w% o3 | - }
, {: q: H; }( P z
" i J% _0 i: Y. Q" K- function setComp(g, value) {$ G4 v& o) l8 {0 C# O7 @* {
- g.setComposite(AlphaComposite.SrcOver.derive(value));
4 q4 Z$ e, C( q: H. W) x! O - }
复制代码 . P" e8 {7 i# d( s
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。4 R1 n' U, D# q d3 r
9 B; i$ m/ I2 W6 J" R; |0 ~9 Z G
顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下)
$ X3 H( T" M, d6 k7 D$ Z |
|