|
|
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
×
2 n0 o1 T, @0 e* t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。
" g1 P- Z0 h. F5 r1 h3 k+ r2 R- importPackage (java.lang); r. i1 x+ v0 P5 O( w
- importPackage (java.awt);, [/ d2 t4 e* z0 [. d3 w2 W0 B9 o
c. }, K7 `; e1 ~3 Q$ B4 H) U- include(Resources.id("mtrsteamloco:library/code/face.js"));
; i j' x2 H; K) H6 o - 2 }4 ? ~9 x: \, p. t
- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);+ x( n+ R9 v \' m3 z
- - S: a5 D4 t/ h
- function getW(str, font) {
9 S- d0 p: q4 y - let frc = Resources.getFontRenderContext();/ P0 Z- D0 C I
- bounds = font.getStringBounds(str, frc);, }4 v" m& W/ z8 e
- return Math.ceil(bounds.getWidth());! @# D& |5 M; e% M7 Y# p7 J
- }5 ~: L! e# d% V2 D1 o" I
- 1 W; _0 o9 w* \9 g# e2 d: s
- da = (g) => {//底图绘制
1 K, g3 w c1 B - g.setColor(Color.BLACK);
5 L2 o% o1 x. k( v$ w; u - g.fillRect(0, 0, 400, 400);: Z6 \# v6 Y% }1 |
- }2 h1 B. V/ j* t
4 `$ D- t. B j- db = (g) => {//上层绘制9 n: S% ?9 V. w3 { T& O! }
- g.setColor(Color.WHITE);
; d) Z! j& u6 T% ~& o - g.fillRect(0, 0, 400, 400); K! f6 w" R+ l/ \; _) n
- g.setColor(Color.RED);! G6 A4 O' c) Q
- g.setFont(font0);+ w {6 F) o! b5 `+ c
- let str = "晴纱是男娘";
" A! l! a2 |1 d- q - let ww = 400;/ a' a/ M6 {( ]! k# s9 d
- let w = getW(str, font0);
$ N$ f: ~+ K* T2 L - g.drawString(str, ww / 2 - w / 2, 200);0 E1 n/ I2 P8 H7 {% B3 A, t0 B) {
- }
" T; L$ I0 p1 R( I7 t' |
2 s+ _1 {/ i3 g7 R( ]( X- const mat = new Matrices();0 U' s" K1 h) q
- mat.translate(0, 0.5, 0);( f' u! s, F5 V+ A+ Q! |0 p9 m9 D$ l
- + g I( D" {# j C
- function create(ctx, state, entity) {
& \" e" z/ j) L3 Q - let info = {2 U* G0 Y9 Z0 r, C: x
- ctx: ctx,' s4 A+ C7 Q' g: w4 d8 J+ O
- isTrain: false,2 G/ t# B- N, j! t
- matrices: [mat],
! [' U0 N9 W: `2 n: T - texture: [400, 400],
' V4 o; r/ z/ k# O - model: {
6 M. D: Q9 V9 {0 i1 X$ D - renderType: "light",
3 M4 M, e9 @! Q; A9 g" P - size: [1, 1],3 o% m: s, E6 L2 f: _
- uvSize: [1, 1]8 r; U3 |& C$ Z" d( T& S" p
- }
- I5 q) b& o) B }: ]- F - }) c1 p3 ]8 I, r# w6 [
- let f = new Face(info);1 W; l- Z: \0 _% t" O' w
- state.f = f;
; _( e" A; T4 @) f' R2 ^1 h$ B# b
7 k; \* K: O8 g9 S( z- let t = f.texture;! ?8 g( O0 E4 d5 F+ C' K
- let g = t.graphics;
1 T+ o5 x5 ]' ^, `) x3 S - state.running = true;
/ I! ^, s& S# l ?4 Q - let fps = 24;
: o5 i$ m8 w$ r, _5 x2 j6 ~3 D. ] - da(g);//绘制底图% P" q3 r, a Z* ~0 m& H& a
- t.upload();+ }% X% W& U7 q8 P9 o' F/ `" I
- let k = 0;
, f0 }- x1 H% Z, ~1 V, t: J1 g - let ti = Date.now();
Q3 p. N* G+ m - let rt = 0;
6 ? ~8 a0 o7 X. |+ {$ ]0 N$ y - smooth = (k, v) => {// 平滑变化! ^' V L9 C, ]6 n# S" R+ u
- if (v > k) return k;" z( E u0 Z/ f' _- d/ @
- if (k < 0) return 0;
1 V# w* g" d& R7 f4 A/ I - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;
6 g3 Y- y; L0 S, g - }
" t* \4 D d$ F+ b" _9 x - run = () => {// 新线程
5 Z k+ j/ V8 \& x7 d3 C9 N5 ] - let id = Thread.currentThread().getId();& e ?& {. ?4 e' I, \9 Z: H
- print("Thread start:" + id);8 o; v4 u0 K6 G5 A8 k3 ~- m' A
- while (state.running) {0 ~. M. O% `8 l' h1 Z8 P
- try {5 j1 s2 |" u6 o0 W- }
- k += (Date.now() - ti) / 1000 * 0.2;
& |, ?7 n$ z- U, O* w - ti = Date.now();
9 a' ^2 Q- V6 K2 T: ] - if (k > 1.5) {
2 B2 R" k j* o. A6 ?" K# l1 ^ - k = 0;! L+ g3 B& x: O; h `
- }+ x% v/ K! L( @: }- I
- setComp(g, 1);& `: p4 Q( j$ X
- da(g);
0 X. M7 {5 N3 v4 P% x - let kk = smooth(1, k);//平滑切换透明度! a& X8 C$ c: N. u; L; B' x, V
- setComp(g, kk);$ }* E8 i. x. M; J7 U. D3 `
- db(g);9 O' A5 A- `8 k3 @; t' O4 Z6 s
- t.upload();( K7 z* {0 z% [! Y9 w0 e4 {5 k
- ctx.setDebugInfo("rt" ,Date.now() - ti);$ U# X, k) D' ~
- ctx.setDebugInfo("k", k);
( t* w7 R1 k9 B& ~9 g# ~- B$ n* x - ctx.setDebugInfo("sm", kk);
" ^( v% H( ]5 i& W2 W4 Z - rt = Date.now() - ti;
7 s, `: A. X7 s2 K2 }: u3 `6 | - Thread.sleep(ck(rt - 1000 / fps));
# j2 ?7 U7 q) U( \2 V - ctx.setDebugInfo("error", 0)
: H+ r0 j+ R, b) m& | - } catch (e) {
& K1 k. S a; o+ A& @7 ` - ctx.setDebugInfo("error", e);% {+ d5 k7 _7 t: |6 `5 l$ [
- }
. c; d! m2 E3 Q4 Z4 p2 R - }
0 R- K& H5 p. B; c - print("Thread end:" + id);* v1 u' Z- Z" D2 P) C8 X
- }
9 t: Z7 [8 T$ m0 d! c5 x9 p - let th = new Thread(run, "qiehuan");
2 L2 I% w- _* ^- x6 S' x - th.start();
, R5 h" v3 c+ u- b9 n: K - }* a& e! [: K u/ q( @+ w
- ! t+ z, C' M- `. e+ @4 g. B
- function render(ctx, state, entity) {
" } D7 @9 X4 I) i - state.f.tick();6 X, p# L- O$ W, {/ m* f
- }( ^2 D8 e4 ?/ H5 a9 a, {+ A
" @- T* Z: @( w- function dispose(ctx, state, entity) {
f6 Y0 c, g _( k* \ - print("Dispose");' L8 ^+ D; o1 \& W
- state.running = false;
3 @0 U" U+ z6 ~, V- M6 W+ q- I - state.f.close();0 o# y5 G; |7 Z
- }6 E) a( H/ a5 p# M3 E" H3 G
/ u# }7 ~8 V- D# g! M- function setComp(g, value) {3 N$ z1 ^) U) G- d
- g.setComposite(AlphaComposite.SrcOver.derive(value));
) X( N F0 j' y2 S) [1 n" q - }
复制代码
' C+ J/ H' y& |3 F; r* @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。* {+ G: C4 F' A) ^4 D' J/ i& E, B
4 `7 r0 Z2 ~( E0 {& i/ x
$ e# o6 V: I) j" h( T顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下)
8 X6 Y/ G8 T* \6 X6 w |
|