|
|
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
×
5 b4 t/ j2 ^% I# e+ U: 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。. x- z; h. V. u" }. G
- importPackage (java.lang);
6 z9 ]1 \& J5 t+ L& `, z - importPackage (java.awt);
* Q, D$ g6 F; w, G" E( c
; c Y) J8 @, W0 K ]- V8 h- include(Resources.id("mtrsteamloco:library/code/face.js"));* J' t- }4 R6 k
8 P+ F# `3 \4 Y- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);! B3 u! H- [# J( E( l
- 6 C6 r5 P$ \ {+ @) \3 f
- function getW(str, font) {
. W, L) \8 U7 P - let frc = Resources.getFontRenderContext();
4 ?: O2 C' i# x( [* @" G - bounds = font.getStringBounds(str, frc);
% u: J* \' D4 l Z. F - return Math.ceil(bounds.getWidth());
6 u! e$ v) E1 t+ Q) f+ R; g6 | - }
- N6 I0 ?2 S$ w+ x. X1 c. Y' q2 u
, O1 O( A4 ?8 Q( o4 \% D- da = (g) => {//底图绘制( `* @1 }8 X: {$ O
- g.setColor(Color.BLACK);
# z% i/ e- h2 g0 R2 R, l/ A - g.fillRect(0, 0, 400, 400);. q- d ~1 _/ P" s% K: S' [
- }4 w( m0 V" y2 E
- + h, H* z' K- L& ]0 V
- db = (g) => {//上层绘制
2 a6 n) }& j7 {$ f4 g - g.setColor(Color.WHITE);
, A1 T9 F9 ^4 L5 b3 P% o/ F - g.fillRect(0, 0, 400, 400);, A6 q$ |1 y! I! I3 H3 j
- g.setColor(Color.RED);
* k" Z& l& H2 q/ c0 i A - g.setFont(font0);
1 X, m' b) g; N* l - let str = "晴纱是男娘";. p7 d0 ?6 X2 ?
- let ww = 400;2 @3 p9 z3 d2 T7 `. A/ R
- let w = getW(str, font0);+ L( {* a8 a4 i% ?6 C" v6 C
- g.drawString(str, ww / 2 - w / 2, 200);
3 T: r4 J. e6 w3 A& ?! x - }/ l8 e. K# }5 ~, g9 \6 [
' S9 a; b ]7 x, H6 N) x- const mat = new Matrices();! Z" O2 d+ @) _* P4 j+ P
- mat.translate(0, 0.5, 0);
$ \1 U. D1 K* q* z2 y. m9 u2 [
) n( n. A2 n$ V1 C/ t- function create(ctx, state, entity) {* [! f6 }0 C# \1 U
- let info = {: C+ ? E6 z* Q% o
- ctx: ctx,
4 D' s+ H2 A% a( M3 D# _ - isTrain: false,. D1 C( N) d% C' L
- matrices: [mat],
, B) n* Z; T* z, y9 q* k - texture: [400, 400],! f9 y- M! M- }4 L
- model: {- l Y% ^, M( C) K- L: n3 q# S) {& N
- renderType: "light",
2 H3 r$ d3 H! ~) Z - size: [1, 1],. a5 u" q+ |! l2 p8 |! N* | z0 p9 N, m
- uvSize: [1, 1]
, G/ c1 N* C1 p0 A2 N - }; }4 ?; @8 D! Z2 h( u9 W
- }
, U; C* P; P3 p8 Z* e/ w2 ] - let f = new Face(info);
6 x% Y# S; n/ A2 N3 Q2 s - state.f = f;
8 h2 Q$ F( B0 y0 ^
# E4 H% @2 H: K! T" g- let t = f.texture;9 k, ~+ G3 ?" ^
- let g = t.graphics;
) M. H9 g5 K3 R5 s# F. r" S8 L - state.running = true;
8 f& D' N/ K9 m - let fps = 24;
& U3 d4 e3 x0 @4 ^, ]) D J/ ^2 o - da(g);//绘制底图8 n& V- r* W7 B4 Z$ w3 E* o
- t.upload();) ^ o2 Z& [4 Y* i
- let k = 0;
5 I0 Y: K9 ~8 T" m' H' \ - let ti = Date.now();7 s6 w9 y$ j6 d& ]. ]; q% \
- let rt = 0;5 w# s4 {+ c' E9 v, M: G
- smooth = (k, v) => {// 平滑变化; |$ c* P, C6 t
- if (v > k) return k;
& A Y/ T! z) g) o, M* j% S - if (k < 0) return 0;
% x, l) W, f1 y1 P: h - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;
: G& c2 Y& z6 [2 l( i - }
. m+ |2 r, h$ S2 E% f - run = () => {// 新线程
8 G. e! j: e' c$ \# X - let id = Thread.currentThread().getId();
9 o+ x, i. x$ l! n' ?" G" t' E - print("Thread start:" + id);* z1 f5 z6 b, H) I" w
- while (state.running) {
0 s9 ^ s- R! ~$ M; w8 f - try { f; J- W% k' t9 k3 d
- k += (Date.now() - ti) / 1000 * 0.2;
& Q( a: S% A1 K4 s* ~( y - ti = Date.now();' H: ^) `5 l' k; q0 G' D
- if (k > 1.5) {
+ `# m* B' f6 r. |, J& f - k = 0;
, E2 @) @; T! R8 n& P2 d. O - }
2 p6 z k+ c- X# d5 Y - setComp(g, 1);) x- e$ s/ _3 s# Z) s" s
- da(g);
% y0 V7 w% A1 h2 U: e - let kk = smooth(1, k);//平滑切换透明度
( w* P* J8 M; Q. g2 b - setComp(g, kk);8 C, F5 G3 C; e
- db(g);6 b, F1 G9 \# \& `' l) Z
- t.upload();
( e* @' A0 M4 u; a. n% Z5 x; E - ctx.setDebugInfo("rt" ,Date.now() - ti);: H6 A3 \ |+ e0 ]- h
- ctx.setDebugInfo("k", k);, N. z9 H4 p" q& l# K" |1 a9 k2 C, s
- ctx.setDebugInfo("sm", kk);
7 ?! t0 A5 g* }- B- c u; h' o3 w - rt = Date.now() - ti;2 P: z+ p+ R- Z$ k
- Thread.sleep(ck(rt - 1000 / fps));9 c0 d3 ~* p: `5 [, B5 ^
- ctx.setDebugInfo("error", 0)* x% F$ V7 p* |% l: n. T. u: C
- } catch (e) {7 G! |) v' g9 e. X5 x0 }
- ctx.setDebugInfo("error", e);
, Z0 y# K6 ^+ s. \- p - }
5 {/ ` h/ R7 i8 j M - }
3 [, C9 U: H6 c9 w( ^# K O7 F7 j - print("Thread end:" + id);
6 n6 c" y1 }& q - }) x$ a6 T# W: R6 E* g6 r/ \
- let th = new Thread(run, "qiehuan");4 k0 Q* g& l, c( `
- th.start();' |5 v8 {+ _% ^; x) R: l
- }
) n: g$ E/ J0 S
4 }$ x) n4 s( c1 p! }- function render(ctx, state, entity) {
2 F1 f* i/ k4 f( [$ R. W* E8 x; ^ - state.f.tick();6 B0 R# l7 g) U- o: E6 j
- }
$ n1 @- A! p' k - 6 n5 C4 J2 p' H3 f. c0 Q1 C h0 g
- function dispose(ctx, state, entity) {
$ i* V M3 p$ k# Y4 K - print("Dispose");; X8 T' G3 r g' _# |# U+ _
- state.running = false;7 Y: [# F6 @3 J1 t4 }- \
- state.f.close();
: m7 Q E) I Q$ z) i( f0 K) I - }. h# m# B% `& h/ m- W6 T( ?& V' I
& e8 ]6 M- N8 H- function setComp(g, value) {/ N# n2 P% A9 N9 ^
- g.setComposite(AlphaComposite.SrcOver.derive(value));. w _* K4 J3 x
- }
复制代码 + K6 ]& \ z4 ~0 N; _! S2 O' I
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。
& F" O; c' f$ s" `$ r4 @0 I: Q( o- V8 b" W9 {; n
6 z# @8 g! p* n顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下)
1 E) K! Y' k3 n! F2 A1 i6 C |
|