|
|
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 L4 R; ^2 K: ~3 O) S- z1 h! }
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。8 q$ W+ a% K. }! {4 o; i
- importPackage (java.lang);5 i% C3 {* w2 }, s* r
- importPackage (java.awt);
o% }) k. U) a
/ C( Q; \( B0 ^& |- include(Resources.id("mtrsteamloco:library/code/face.js"));$ B( V; @, y3 F9 I9 X8 Q% [8 }
- " x6 G' v. d8 u, e, s# f$ V$ o$ w
- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);
% W! e; y4 H) V2 P; d3 @
! k) n. S4 ^- D! D- function getW(str, font) {: t! D. Y" v i& o
- let frc = Resources.getFontRenderContext();
' H" F: |' \" v2 [/ K( | - bounds = font.getStringBounds(str, frc);) q1 J# K" u0 b) _* C. ^8 k2 y
- return Math.ceil(bounds.getWidth());
3 A+ i. v' X. a0 X - }/ e6 D% I; ~3 K4 f' [2 s- G
; `; s9 Q8 K/ \ Q* @6 l! V- da = (g) => {//底图绘制1 M# z" n6 p& x8 p4 g
- g.setColor(Color.BLACK);
! G, p+ [$ E& p* i% C: ` - g.fillRect(0, 0, 400, 400);, ~. \$ D0 C* |0 ^5 E- }1 p
- }) J. k; u# | `
- ( i' H3 i/ |3 w1 L
- db = (g) => {//上层绘制
d/ `0 g* K7 v# H6 C - g.setColor(Color.WHITE);- x) q1 F- h* O, b& Z: n
- g.fillRect(0, 0, 400, 400);
/ c6 O& Y; U$ w6 P/ ` - g.setColor(Color.RED);
3 t. {/ v6 v9 ~- ]( G - g.setFont(font0);# `8 u* F% r) P' }, r9 j
- let str = "晴纱是男娘";
. g; M* M( L) [+ | - let ww = 400;6 p6 F7 J2 _! a! e/ Q
- let w = getW(str, font0);0 M3 b3 l+ k0 T. ~+ K
- g.drawString(str, ww / 2 - w / 2, 200);
' p8 |( B7 V8 R1 A6 t - }
8 ^+ j# ?2 Y. J - - s& N2 p# Q6 G9 _) r
- const mat = new Matrices();
q0 L$ o# c' f' o; ?" D# j - mat.translate(0, 0.5, 0);
3 w" J' T7 b6 ]& R6 L' V
1 ?5 T. w! _4 M0 B J, Y- function create(ctx, state, entity) {
9 a. @8 f* P% E - let info = {
6 C5 a6 s2 X; F* O3 V - ctx: ctx,2 p/ B5 b! K" A! h
- isTrain: false,
w. i/ Z& U* s7 `% M - matrices: [mat],' Y* {( w) |6 G- u1 ^% K
- texture: [400, 400],9 h5 t- R8 R, f# c h: {1 C
- model: {: A# v5 p/ }8 {' f* B: q
- renderType: "light", |8 @; B3 F2 {2 O, q( @1 T
- size: [1, 1],
9 L2 g) H5 A: H# g) y1 c$ T - uvSize: [1, 1]
E; Y, a8 c2 u' F$ o' B - }
3 q" Y- ~+ m; z/ e) W+ _! J$ K - }
8 [7 \# b) a' ]5 i - let f = new Face(info);
& a8 w. I6 \3 \4 M* f$ H - state.f = f;
7 L% P3 F& u- u# R5 R( l8 ]; R - $ `! H1 a* }. p6 y, u
- let t = f.texture;* K1 ~+ B1 |8 B: }5 v2 M* F
- let g = t.graphics;+ W0 O8 A) w- q& B& M- K
- state.running = true;. H. t2 Y2 I. z/ Y8 @) B9 H
- let fps = 24;. q9 ^( s! \2 d- i
- da(g);//绘制底图6 u8 x1 D8 q, e; Z
- t.upload();0 c0 u0 z9 p) M8 A+ l( F
- let k = 0;
0 j" z9 ?& O* u. Y6 n' ?9 `4 ? - let ti = Date.now();7 A: v: b) M" j F
- let rt = 0;
( z4 j; I) |1 [2 U - smooth = (k, v) => {// 平滑变化
! z$ q+ @1 t/ a, Y, g3 m - if (v > k) return k;
3 W* |( B/ m2 d- t - if (k < 0) return 0;. I9 `% h, A+ K5 J' f* s
- return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;; F4 ^- W! c8 I. O9 v% P
- }
! ~. ~' M, g- n* V - run = () => {// 新线程
; p& n; \7 e5 ~7 h0 b3 F% k - let id = Thread.currentThread().getId();, @+ M8 c N& w- L
- print("Thread start:" + id);/ W: p) x/ ~& F. G8 J9 Y& w0 E
- while (state.running) {4 O" j' Q: B! f! w6 w6 v( y1 f
- try {, l6 C+ A5 |7 [4 z- y/ D9 R$ v4 P
- k += (Date.now() - ti) / 1000 * 0.2;5 a; {# v* r" g! q' s+ X$ v- z4 E
- ti = Date.now();
2 g7 K! V& P e( E - if (k > 1.5) {
9 B" G" f8 [5 j; S [ Y, l' ^ - k = 0;
& |( ]9 Z/ u. A6 D" e - } ~% K0 Z+ f0 f ^- A
- setComp(g, 1);) I" I/ ?; m- h( q& Y
- da(g);! v1 L* c$ i Q+ a6 _
- let kk = smooth(1, k);//平滑切换透明度
4 T2 F1 E5 X8 k' B* e7 N2 J! c - setComp(g, kk);" ?9 G" b% A$ `* k
- db(g);
5 t) j: y: N5 r, X2 L1 J - t.upload();0 H+ n Q' a2 g$ \5 l" u) q
- ctx.setDebugInfo("rt" ,Date.now() - ti);
" J$ `/ c1 Q5 Q5 u, f- c - ctx.setDebugInfo("k", k);
0 M( e3 v$ i6 Q' B# I - ctx.setDebugInfo("sm", kk);
& W, }) z! o k - rt = Date.now() - ti;9 k9 }; |# F' e& x! j: n
- Thread.sleep(ck(rt - 1000 / fps));% Z3 S7 W3 [$ }& m) k: k1 X' i& ?
- ctx.setDebugInfo("error", 0)
' v/ W& A0 a, X) V1 ~ - } catch (e) {0 W4 e* n6 T( |' F" n
- ctx.setDebugInfo("error", e);9 Z- x3 ]1 q6 e9 p
- }
; p# `) i6 I* L. s9 V E' W - }
$ v& {' g) Y7 |. y - print("Thread end:" + id);
) e; k9 f5 K# B0 m - }
/ U3 @4 c/ T* E! o - let th = new Thread(run, "qiehuan");0 U6 p9 k! r z6 p' k; l
- th.start();; A+ W" F: X) M6 u
- }1 }; v7 I& G+ ~9 z2 R+ S( i. w" z
0 f9 ]! Q5 l# `: O1 |- function render(ctx, state, entity) { i' z* s* o; U$ S0 f- X
- state.f.tick();6 B; v: M% h: [' W$ a) k# K$ c( A; ]
- }: C6 P/ R4 ]9 z. X( X; S
$ d* L8 b5 ?3 t- function dispose(ctx, state, entity) {
1 e) a1 |( m( T; @5 H& k - print("Dispose");
. ]4 T3 I: ?( e8 s+ C - state.running = false;' b/ _6 Q7 U% w6 `$ d. f9 R
- state.f.close();+ L: j; f3 n% J; D+ A4 l
- } n, _$ P$ {# F, p% d) @. d; W
1 w! ]" C& [5 ]! ?: m- function setComp(g, value) {
$ B6 l! L/ C# b* Q" Q: u( X - g.setComposite(AlphaComposite.SrcOver.derive(value));
. ]. L# R1 ^' Z2 A' @3 E - }
复制代码
# Y( Y5 P3 o! d( j8 V3 h5 D5 w: \ 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。2 K: l Y p4 j6 H: H9 B
" V# D A. h5 x8 t/ E7 x
" Z& Q$ ^! d8 f! w' S3 \, A顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下)' a% m/ f( I, G! e
|
|