|
|
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
×
+ Y, H2 C8 F) z2 A7 C/ I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。
2 Y* K% h& D6 K! p+ a2 H J- importPackage (java.lang);* P) g. r) w8 e# V& L
- importPackage (java.awt);2 Z3 `" e/ v6 m% t8 J( m. [
- ! J/ R2 y, J! z( O: P( C% g) D
- include(Resources.id("mtrsteamloco:library/code/face.js"));
5 F& a2 ~6 |! }. ^. _ - . ^0 H7 L! a) K( ~, y
- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);
d; w6 Y& {6 @% u - % j) @0 B1 I# n& x. `$ V2 Y
- function getW(str, font) {6 D% w) J$ f. ?3 @+ d8 c! c
- let frc = Resources.getFontRenderContext();( D. S6 w, \! o; z$ [/ q& P$ C
- bounds = font.getStringBounds(str, frc);/ ]6 H0 |8 j* s. f) Y
- return Math.ceil(bounds.getWidth());8 D9 s! K# F t/ z& }
- }0 z% k2 _8 y, r7 ~0 A$ ?* x
- , c$ L& M7 S2 c% e* p
- da = (g) => {//底图绘制
$ h% p& x* F) {4 | - g.setColor(Color.BLACK);
" |+ e* Q) g9 [0 ]0 c - g.fillRect(0, 0, 400, 400);2 r$ w7 F% Q, {5 N: p
- }
& i$ P% c- h) e% W8 J. ^
2 ^* T( `! P* ]: H4 `- K- g- db = (g) => {//上层绘制
+ S; V$ r5 i( `# F+ R2 r - g.setColor(Color.WHITE);8 O' Y+ {$ m5 L& }0 a4 |1 h( m) q0 t
- g.fillRect(0, 0, 400, 400);
: L/ P. N1 b" V# N - g.setColor(Color.RED);9 U& R1 G# u8 _( L
- g.setFont(font0);
2 \( U% M, q- a/ O4 ]. m$ [ - let str = "晴纱是男娘";$ f# _+ V2 R+ Y- Y, g# _/ S% y h
- let ww = 400;( ~: U4 c2 V$ \$ j! @0 `4 Q
- let w = getW(str, font0);! @2 ~/ t3 t1 b. |
- g.drawString(str, ww / 2 - w / 2, 200);
- H0 w- _& z- c% @% S; |' M6 w - }
7 V# K9 a# F$ r
) E, N8 _$ N2 f( J! ?2 z- const mat = new Matrices();
2 T( o' F3 `# ^ - mat.translate(0, 0.5, 0);
, R! }' Z: \# d0 A( P, `
; b# j2 y- n- z' Q4 v# J- function create(ctx, state, entity) {
) W7 c$ X+ w' g1 |* G3 n - let info = {# q8 b4 c1 e5 g: v* E- E% z+ F }
- ctx: ctx,
$ j& o( Q* J8 B+ E v7 X$ q - isTrain: false,# ] E) K" Z/ B% d4 @5 j" `
- matrices: [mat],
0 x% y3 Y* `7 m - texture: [400, 400],' V" {! t* d- `3 o0 A3 u
- model: {. w1 H/ f/ |# I* j( t. o* y
- renderType: "light",# j- I1 j; h8 {, r
- size: [1, 1],! Y/ V0 {# t/ c8 b, i4 l& ~
- uvSize: [1, 1]) f2 ~& C8 ~4 V3 I
- }3 {. {9 y8 a( x! V+ F% d8 S9 \$ l
- }& H0 `' o2 |/ k5 w
- let f = new Face(info);- [; N. M' u" R2 g6 f" I3 b
- state.f = f;
9 T) ^" p) l5 ^% w# D - & S, v, B: |2 b
- let t = f.texture;/ T$ M) B* q, {
- let g = t.graphics;
/ b/ v& g% O0 _* Q - state.running = true;# I: H( H3 c3 ~
- let fps = 24;: L( R: b: m& m; u8 y1 R, j. V r7 t
- da(g);//绘制底图6 n( S2 P0 v& p3 k
- t.upload();
7 r3 e2 g& B+ g. |0 o, f3 v - let k = 0;' o" ]- O8 _5 y3 F3 s7 z
- let ti = Date.now();: x6 q5 H# X3 Q- v
- let rt = 0; k+ D l: s7 y- O9 k- {1 i0 R
- smooth = (k, v) => {// 平滑变化2 d. ^8 i; |" S' L6 u( I/ D: }
- if (v > k) return k;
4 Y" u! V) _. p% P - if (k < 0) return 0;; a7 ]9 k O9 w; m
- return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;
Y# D# r* }3 b. q7 b5 A - }
# o6 n( c7 b( f# G - run = () => {// 新线程1 v" j- J" a2 D$ z2 i8 _& P
- let id = Thread.currentThread().getId();! H/ P- U5 O7 W# v& o
- print("Thread start:" + id);
: g; M" j. X- A8 h - while (state.running) {8 v0 E1 ~. W. |# c2 ~
- try {$ ~& ~ o2 W& ^$ ]
- k += (Date.now() - ti) / 1000 * 0.2;% \8 v; f$ v. i/ k: s
- ti = Date.now();
9 i- S7 ?4 a: M, k - if (k > 1.5) {
2 ~7 x# x5 v5 z5 T - k = 0;0 }) E( h% B. Y: h9 t
- }
! m* H4 c% i4 Q) a - setComp(g, 1);4 b9 A- i7 J- r
- da(g);
! A/ s* I% H! j( P5 A - let kk = smooth(1, k);//平滑切换透明度
- ^2 l! _3 J" K7 y6 o) a/ L - setComp(g, kk);# _1 _6 M: t' g- `# {9 ?3 J, H
- db(g);
6 ]: k0 d0 N0 e* S. f+ D5 D) B+ m - t.upload();
& R2 [2 a% X+ p( V$ x/ |- S - ctx.setDebugInfo("rt" ,Date.now() - ti);) e! M: H$ Y/ Z- j2 X U& M. @
- ctx.setDebugInfo("k", k);
9 z, E6 Z9 R* u8 |' A6 i - ctx.setDebugInfo("sm", kk);: y4 A8 t0 I7 N* m
- rt = Date.now() - ti;
) P. D" y7 t8 S - Thread.sleep(ck(rt - 1000 / fps));
6 V1 d* t! ^9 ]6 r8 M - ctx.setDebugInfo("error", 0)
" l2 J$ t/ f$ P% U0 m: v! K N - } catch (e) {
/ W0 A' }7 l# `# X: ` - ctx.setDebugInfo("error", e);
/ j ?, Y% j; u( J - }
9 b: ?- A3 ]2 j* R( I - }& \! C- O& ?6 z0 s
- print("Thread end:" + id);
; t0 i8 H8 _) x2 E5 B$ E - }
# g3 Q( E$ [9 l& e& p. `5 j - let th = new Thread(run, "qiehuan");
( j$ e4 D8 f( K# A S" l - th.start();
8 Y. x. O' b/ P. ~2 J - }4 a1 Z" D& P5 `$ F
- . ^' ^* ?) H2 l2 L
- function render(ctx, state, entity) {
9 _8 p9 k, {! M9 R0 A - state.f.tick();4 o0 n: T) n/ {+ h- ]. v
- }7 o, ?) z u7 z0 C, E
- % ~3 q1 E5 l! \! u ~2 |, b6 c
- function dispose(ctx, state, entity) {
% A7 \/ b6 P8 ?; i% W% t8 n - print("Dispose");
+ J7 d) J2 r* I8 M, T& o% t - state.running = false;' \8 g4 P7 X8 R4 O- z' O# v" d
- state.f.close();# r; N+ }6 l) ?
- }
1 Y0 l4 h3 a- m, E - ; m! `( U( A8 n9 Z V, k0 a
- function setComp(g, value) {
* }2 X! T0 U0 e7 `3 A3 ^ - g.setComposite(AlphaComposite.SrcOver.derive(value));0 F. x; v$ F6 f% X0 r4 ]+ ^
- }
复制代码 " s# O& X* v( E# _8 |8 {
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。
( `( N: [5 C8 Z; o* \6 g+ z0 o' h: l' c" q' v
- F4 g& O* r. @" ~) l" Y4 ~
顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下)3 H5 f1 _2 u* ?, ?) V) V
|
|