|
|
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
×
3 ?4 V7 u0 v1 z* D. {0 @$ U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。9 f1 R. Y& G7 L7 { D. D n
- importPackage (java.lang);
. M. ~# m t f1 ~& I - importPackage (java.awt);
1 V! R) \* ^6 d, l& v
3 A1 W+ |8 H3 L; D& S6 S, W9 ~8 H- include(Resources.id("mtrsteamloco:library/code/face.js"));& E; ]6 z8 r2 _2 Q- d9 g
- 9 F$ U. s1 Y0 }6 T
- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);, `. W0 \; C& @# x
2 t p' B* o* U2 W- function getW(str, font) {1 @/ M& I9 ~& B+ \0 e; ?
- let frc = Resources.getFontRenderContext();
9 A+ q- }3 B9 b% H4 Z! F6 F% \ - bounds = font.getStringBounds(str, frc);
4 t" s" H/ _# t4 K2 Y - return Math.ceil(bounds.getWidth());" w/ l7 ~7 X8 ?/ E% P
- }5 P& ~& X& P0 `) r0 v
3 h: X2 e, c3 Q4 e5 M5 k- da = (g) => {//底图绘制9 Y1 \/ b8 e8 b
- g.setColor(Color.BLACK); x* m& O) _. X3 z% @
- g.fillRect(0, 0, 400, 400);
1 g# U8 s G( G' l - }
/ _4 N4 M# I5 e+ w( A$ ~
$ ?' u' N- M: G# V+ J$ W/ R) k7 V- db = (g) => {//上层绘制/ j: S7 C C$ m% j! ]! `4 K
- g.setColor(Color.WHITE);# F+ Y* s" l2 J t' D! S
- g.fillRect(0, 0, 400, 400);
& \6 f5 g- i$ I F; m4 \/ f - g.setColor(Color.RED);
8 i1 X2 _, c) Q- r1 d( U5 c' Z - g.setFont(font0);! z$ W, @6 |1 e8 Q3 o, R
- let str = "晴纱是男娘";
& v; K1 M/ b2 ^$ |, c/ ~ - let ww = 400;6 J6 v0 W( Z5 S% X, m
- let w = getW(str, font0);
, S0 A* U+ Y K( W, f - g.drawString(str, ww / 2 - w / 2, 200);3 {& c1 g) ]4 ]/ e# l
- }) Q3 v3 ], y* v+ L" r; V1 {
- : [+ e# x$ R* c1 n& B
- const mat = new Matrices();
! T- Y7 C4 J8 V1 h8 ? a1 k) Q; } - mat.translate(0, 0.5, 0);+ G6 u" j3 o: K( ^9 O
- % ]8 f* p! K" C% k+ J1 h
- function create(ctx, state, entity) { r: F# [% D& ~* g3 I4 h
- let info = {) h6 T, P, f, C
- ctx: ctx,
# j- S; k) `/ h" `5 m, U - isTrain: false,
, j: q, R- h, P: B3 s+ V9 J - matrices: [mat],$ Y6 x& C: p( O+ H7 m, M: q& s
- texture: [400, 400],; c4 w) M2 W) S" ~
- model: {3 {: g* E2 D R g0 Z! a2 _
- renderType: "light",% ?) H& n# L. e$ v8 Y
- size: [1, 1],
9 a) }1 \. B" r, Z# o8 W2 f - uvSize: [1, 1]
* o* `5 f1 E; u1 ?( f. a" o - }+ v e; F' P1 N" ]$ k
- }3 l1 e1 D3 c4 c
- let f = new Face(info);
! a8 W6 F5 R8 c4 D8 ^ V - state.f = f;
, v7 r3 L* S% \, n/ P# S
) F7 P* d+ G9 u) ]- let t = f.texture;
" O m4 p3 n3 i - let g = t.graphics;- L* k- P3 w4 V: t1 y( v8 m, j
- state.running = true;3 Z& b7 v" L( Z0 z/ l( H9 d+ O
- let fps = 24;1 h' i5 B% n( g. d
- da(g);//绘制底图1 j! o" Q" q1 p# l* Z \
- t.upload();
3 ]- v+ r0 i0 Z$ G - let k = 0;1 i! ]3 S! W% \& `( O1 |3 U% P( H
- let ti = Date.now();4 i0 b: l* [! h: _9 w
- let rt = 0;% z2 [. @* o6 ]1 c( J
- smooth = (k, v) => {// 平滑变化' b/ ]% t7 \6 u, J5 x9 C S B
- if (v > k) return k;
* K6 @+ w$ a* ]$ |" t - if (k < 0) return 0;
3 F* `$ k7 ?1 c/ k - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;
; R4 {' l" W9 \* y$ Q" @+ K4 A3 M - }
' k. P0 C3 K0 a7 h1 P C. H - run = () => {// 新线程
% r; j4 a% b6 O- _$ M% F - let id = Thread.currentThread().getId();" e) Z; u6 O+ t" j/ {; ~8 J( n
- print("Thread start:" + id);
% Q: C/ |* O! T+ g - while (state.running) {( Y) b5 r9 |8 ?2 m' P8 Y* W3 I) C
- try {
0 U% {) t# c8 z; v - k += (Date.now() - ti) / 1000 * 0.2;
; x" w/ w1 ?" b/ t6 B - ti = Date.now();- g0 ~+ d5 z! L- }; J
- if (k > 1.5) {: v8 j2 n* |( B U# g0 q o
- k = 0;
1 Z. f- u5 @+ j' x - }
1 s/ @- s, i5 C/ ~8 p5 a& A: B - setComp(g, 1);
% \3 g- V* R4 p0 Y& W - da(g);
& K4 C q. g1 E4 ^* [9 |1 u; [( t - let kk = smooth(1, k);//平滑切换透明度
+ f( o5 @0 B2 Z4 L: h$ U - setComp(g, kk);( _, W! {4 S, X" T
- db(g);& F2 ~6 b+ r U: U/ _8 C
- t.upload();
3 j5 ~2 K8 ]$ p" A2 j+ i. ? - ctx.setDebugInfo("rt" ,Date.now() - ti);
`! \% r8 J( A - ctx.setDebugInfo("k", k);' n$ c6 F7 Q5 a. J; ~5 i' \
- ctx.setDebugInfo("sm", kk);/ r0 u( ]/ K: j, f; M; G
- rt = Date.now() - ti;
0 V$ H6 N) B6 N, X' P) e1 _ - Thread.sleep(ck(rt - 1000 / fps));* z4 c, G5 H' ?1 p4 h
- ctx.setDebugInfo("error", 0)
) z- I, \% x( i2 H2 r# A8 k, \ - } catch (e) {
8 G& E0 B: `* Y# Z0 E2 a - ctx.setDebugInfo("error", e);
o) f8 |2 N+ W, z7 A* |" z - }
~" K% G" y2 I+ G" p+ z - }. E# w1 H8 L% x; b9 `
- print("Thread end:" + id);6 {, Q F5 `1 ^2 w
- }
- ]4 q( _& ]) N9 a% L6 _ - let th = new Thread(run, "qiehuan");6 q0 s7 B; F" z. @( y0 l
- th.start();) K2 K4 G, r' N* m& T Q" @$ ~# T v
- }7 K; @* I2 f9 }) N! w% {5 h$ B
% O& n. J6 L0 e6 F ^. t8 r- function render(ctx, state, entity) {
1 d; i& Q$ p B - state.f.tick();# t2 Q5 J. l% E2 @$ j8 ^
- }# l$ J: C8 G G
$ {6 W4 ^5 k: h1 |9 g, d- function dispose(ctx, state, entity) {$ `, h$ M+ W. j4 `7 P
- print("Dispose");6 f# L$ y, V6 m0 W, ^; N( [5 g3 S
- state.running = false;
% y% e; A- r1 W' Z) c- y - state.f.close();3 h, }4 ?+ U! x2 p0 a8 |& b: u
- }4 @0 {& u$ h5 m! B; M% K
- 1 V3 M5 p- J. y V* D) y7 q; d
- function setComp(g, value) {
$ |4 @( j# ?2 Y0 A9 V. E" ? - g.setComposite(AlphaComposite.SrcOver.derive(value));( l& a$ E$ Q! c
- }
复制代码
( ^* g: V6 c# b) ~/ r* k0 H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。
( `$ }' i$ N* q% @
4 L, h5 i! S ]# W2 e: ]! q- a3 B" L# `1 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)
; a5 J- ?( q; w% k' b- {% y: K |
|