|
|
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
×
/ A8 p& b5 ^- b1 P% f, j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。! m5 O6 j8 c, d" ~7 h. A
- importPackage (java.lang);
5 E) ^' P. ?: Y/ g5 v$ ? - importPackage (java.awt);
7 k5 Y5 O7 v- e8 R
$ a% D* s% V' b R0 r- include(Resources.id("mtrsteamloco:library/code/face.js"));# k( D, [0 P0 @! h0 E
( x1 p% W4 b' z" j9 F1 Q/ J3 a- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);7 O9 v( J! Z7 ~9 y# i
6 h# W3 t4 d' r$ p- function getW(str, font) {8 E0 m7 x/ _6 [- b: L# a
- let frc = Resources.getFontRenderContext();
& E$ z# |6 {: T5 t - bounds = font.getStringBounds(str, frc);7 F: d4 z$ ]' D: G# [
- return Math.ceil(bounds.getWidth());; N( }; ^, Z v! u
- }& _& r& N. `1 j
- ) a% B* T2 y0 @% x
- da = (g) => {//底图绘制
' U; d; E) O4 q# o$ j& R+ b7 J- Y- ^ - g.setColor(Color.BLACK);
* z% R0 d" _7 H5 M - g.fillRect(0, 0, 400, 400);8 v# P0 h9 R- L9 g/ P
- }
& x1 O0 @8 x/ H0 L - 3 K3 r' X5 w( F1 J+ U
- db = (g) => {//上层绘制3 k/ g/ ?& f. Q$ n S; g
- g.setColor(Color.WHITE);
, E/ n& g* a/ v* c5 Y - g.fillRect(0, 0, 400, 400);
, V) |7 d+ B$ J |! b" @% V( m! k - g.setColor(Color.RED); I: X, y5 b( [; n8 y; B
- g.setFont(font0);
, v% D1 g) O$ ^3 w# x2 I - let str = "晴纱是男娘";/ K( J$ u7 p8 i) y- `2 J# C
- let ww = 400;
; F: N# e& `$ z3 {# l9 \4 v0 k - let w = getW(str, font0);' m9 [8 {' R# O5 A
- g.drawString(str, ww / 2 - w / 2, 200);. b* C: L: l+ B9 w! f9 \9 n7 ?
- }
- @" K& c: z! y8 l, _: m( M - " }2 i& {" A* s% h2 \
- const mat = new Matrices();
2 i9 X+ R( E* t! S - mat.translate(0, 0.5, 0);, T# d' A& W& G/ F# h
, v! t$ _3 h5 ]! \- function create(ctx, state, entity) {
: L; p3 g4 P' a _ - let info = {
: `0 E( E; {" T( R5 U2 I$ U - ctx: ctx,
' O8 s! k9 b- l- M! P1 \ - isTrain: false,3 [* H9 e5 G. T
- matrices: [mat],
9 l9 T }* t2 c - texture: [400, 400],3 i" D2 X m8 o9 c1 o. L
- model: {
* E9 V- f. G0 m! L& @ - renderType: "light"," @6 `8 y/ `; k/ I1 l! t' v
- size: [1, 1],5 V6 g; ?9 k0 n, W: c) W
- uvSize: [1, 1]; j5 h! }% P- n6 N
- }
5 B' f6 k' w" `. [) ?' O" a - }( \" T* r9 ~3 i: P; a6 s$ X
- let f = new Face(info);
5 f, [" B \! ~3 V U( u3 { - state.f = f;0 J% R: r V6 A: o3 y% B {
- / I7 o, L9 U0 a+ E& Q3 X4 @' b
- let t = f.texture;0 F+ C9 c" V2 `! p
- let g = t.graphics;, F+ i' Y* k- D% n4 m
- state.running = true;7 v0 N0 s- y' ?+ l* ]0 B
- let fps = 24;# p$ f; `: T: }
- da(g);//绘制底图
9 y2 E5 P! R2 _! { - t.upload();
& o8 }0 m2 j9 ]/ u8 [- D - let k = 0;3 n% _3 `1 o; c- h
- let ti = Date.now();! y7 e c4 }2 m9 d9 L
- let rt = 0;
! i0 X# r8 W" @- f - smooth = (k, v) => {// 平滑变化
& M( t) L; y q& B# X- x5 D - if (v > k) return k;+ W/ n$ s$ n' X: J# I
- if (k < 0) return 0;
) ~/ Z/ J# Q: C0 [5 y+ J - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;! {/ D1 H, e; N0 r' x
- }- ?* J; N: Y3 r2 Z j
- run = () => {// 新线程
* r1 H* P4 W7 _9 v( ]5 s* a( M - let id = Thread.currentThread().getId();; E. j/ z7 w1 i6 r. r2 n
- print("Thread start:" + id);
5 r2 \: Y8 w( r - while (state.running) {) c+ i! x2 d2 K$ v0 N+ n
- try {9 n. {: d% j6 k) F+ Y- a1 A4 c
- k += (Date.now() - ti) / 1000 * 0.2;
6 N2 Y2 d& @8 A( e - ti = Date.now();
1 d0 m3 M% h0 \9 k" ^* w: @% ] - if (k > 1.5) {" y; }6 `2 C7 g. J: U& G9 g
- k = 0;' `) ^4 h; u9 T& k) D
- }
4 q9 W9 o" B! S7 _% J) ] - setComp(g, 1);
) k7 G, }# ~0 B+ z& B - da(g);
* g+ q8 @* u5 f% c- x - let kk = smooth(1, k);//平滑切换透明度
- d1 q- Y$ Z) u2 {6 h$ |2 k; t5 y/ k - setComp(g, kk);* j7 L! z# {& e+ x
- db(g);$ l6 Q$ ^$ I8 W+ V$ B
- t.upload();
, f& c8 A: U! X% g' x$ g- y' M! L - ctx.setDebugInfo("rt" ,Date.now() - ti);
! g& p$ Y6 [$ g6 h. } - ctx.setDebugInfo("k", k);
- ?6 @' M4 U4 X- C/ o' |% f. j - ctx.setDebugInfo("sm", kk);0 C& M7 o' \6 {" a
- rt = Date.now() - ti;/ l( D M0 j1 \! N) m* U
- Thread.sleep(ck(rt - 1000 / fps));9 u+ D$ r5 |6 B$ _' `
- ctx.setDebugInfo("error", 0)7 k+ b) _/ z3 R5 _4 L7 p9 T
- } catch (e) {
9 i2 j+ C$ ?% a# }( c. t: A - ctx.setDebugInfo("error", e);
' y0 E3 p+ R/ f5 P - }
. U, s4 F: y* ^% U+ m# j0 i" ]) t. R - }- F7 ~/ p. a- A2 H
- print("Thread end:" + id);
5 N' @' b, c) I' Z/ y' V& [' k - }9 v$ l+ O# w9 S P5 d
- let th = new Thread(run, "qiehuan");& B0 A( Q: n; o: f) [3 @: t
- th.start();- Z' K+ {" K x( l6 y
- }
( q$ w9 W, O i2 k" ~+ h5 F - ( n6 \) ^* G0 U2 K% [/ F: k
- function render(ctx, state, entity) {: `9 _/ w5 }/ d5 u# [( ~" d
- state.f.tick();' e& [. o. H: E8 x4 K" j, N# }. e/ y
- }
* Y( H& }! L3 k4 J( b - . f( O2 [" l4 f6 r$ ?$ g0 i& C/ a
- function dispose(ctx, state, entity) {
, b7 r) i2 @7 ]; c0 m w- f - print("Dispose");
2 J* P8 j8 ~) @, E7 p8 r% | - state.running = false;
, b6 C9 b/ P4 ~* \. Q, L - state.f.close();
' u' j' t. {0 b' ~2 N - }8 \' n" M) U! r
; T8 S R, `9 M7 L( _" a- function setComp(g, value) {
! `9 g7 K1 Q" h+ B& \ O - g.setComposite(AlphaComposite.SrcOver.derive(value));; H$ R! \) q# g8 F! d% j- |
- }
复制代码 8 Z. s4 E- {# T* {6 [; 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。5 o9 U& G3 x( m5 a, S7 a/ S. m5 l, \
+ @" \/ s0 `4 n! d
: v( D. L1 R5 R. X; 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)6 g7 Z0 n! @1 `* e5 q! t2 B# ^9 r
|
|