|
|
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
×
, n. }, I- P- }9 N1 y6 k& r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。% W& ]& Z; s$ v
- importPackage (java.lang);
/ O% k$ V0 P. j- i2 T - importPackage (java.awt);$ A& m" k) o5 H: o
, A+ r3 b) c* {% ?- I7 |- Q7 n- include(Resources.id("mtrsteamloco:library/code/face.js"));
Q* T* g# V9 K: Q" a- ?
9 D& C9 [( y: r( b- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);
3 u: E( w7 K! a7 q) j8 h A
! \0 D' j: m$ ^- function getW(str, font) {1 i0 l: b2 e7 a
- let frc = Resources.getFontRenderContext();% J( G. x+ B7 g4 t
- bounds = font.getStringBounds(str, frc);
1 e; l, ~7 L5 [9 Y" g9 }0 Q1 \, B - return Math.ceil(bounds.getWidth());; @7 r$ [6 `$ Y; c
- }' o( Q8 z, r9 N3 V, x7 [
- ; G" s$ E1 z) i+ W
- da = (g) => {//底图绘制0 ^- k" O0 S- c7 o" w) d! L' j/ H1 I
- g.setColor(Color.BLACK);' [# g! O) v% x. ]6 Z, U
- g.fillRect(0, 0, 400, 400);
9 A4 l4 ?1 L/ W# D; N8 V$ s, U3 \ - }
: i+ ~+ d" Q+ p; t- f$ M - 1 }; W% h+ `" [' q1 K6 Z( f, ~% u
- db = (g) => {//上层绘制
5 k5 M! C$ W% r/ } - g.setColor(Color.WHITE);
5 |) A' D: R7 l: B5 l6 H# p5 t) ] - g.fillRect(0, 0, 400, 400);
6 M# A# m; t: P - g.setColor(Color.RED);) k, H D9 v1 N* Q" Z5 `
- g.setFont(font0);! `6 p7 P# r0 X, `, s* g) [
- let str = "晴纱是男娘";1 e5 ~, k9 J& Q6 G
- let ww = 400;+ Y. y9 h& @& U) a5 I
- let w = getW(str, font0);
( Q e4 J0 T h- F" t* F# S - g.drawString(str, ww / 2 - w / 2, 200);. J2 z. @7 I( s: Z+ {& Y; g
- }1 p l v- Y0 {7 O Q% X) |
- 8 v5 D7 B0 S0 K; _7 s" I6 s1 G
- const mat = new Matrices();! {3 ]* ~ u) d m# ~
- mat.translate(0, 0.5, 0);
: m9 H L& J9 c' M; {. m - ) Q) x1 H, b6 J2 P3 n
- function create(ctx, state, entity) {
4 c9 s T/ H" x6 U - let info = {- d/ {6 k& ^+ n8 ]4 }! u y
- ctx: ctx,
- d* T9 S; k; ^2 A7 r/ { - isTrain: false,. F3 g( d) V, Q" J% ^* C
- matrices: [mat],
* @, C2 r3 O- D' T& y - texture: [400, 400],
7 g8 F1 [7 v5 M, B R, m - model: {0 f0 m1 r8 n7 c, {0 E+ K$ p
- renderType: "light",
# R3 q3 a" K$ q' v& b" G% G/ }9 g$ G - size: [1, 1],. ~1 B% A" R6 k' u" b2 b, H$ Y" k
- uvSize: [1, 1]
( ^, g% f) S- ^: N; k: E - }- w2 @# s$ g( F+ L4 A4 V' \
- }
- p$ W9 E( J/ n; n# e" D+ U, k - let f = new Face(info);. f+ `1 M% E$ i* F5 y' R
- state.f = f;' T& C9 l& e7 C& @5 |
' O8 C( v% U- x- let t = f.texture;
$ C8 N. y) w& D1 y - let g = t.graphics;
! i7 U+ p' s p6 Z9 K - state.running = true;
/ _" R, r) p- L; g o6 F4 M# H - let fps = 24;
: Z' j4 ]3 `: a - da(g);//绘制底图
$ O$ G. Z% _7 r0 F - t.upload();' {% `' M( Z5 x7 T/ S% y
- let k = 0;
7 y$ v# p% M; s4 R$ w2 r - let ti = Date.now();
) @ B# C& L2 P- d7 t - let rt = 0;
# z+ V8 P$ K0 e" U - smooth = (k, v) => {// 平滑变化
) l |% X) U- r: F0 ^ - if (v > k) return k;
: m- D. }3 `; K& W- _! d2 p7 l - if (k < 0) return 0;
- t/ n5 }1 V. ]) S! c+ s, L3 a - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;& l y' m1 M( R& {2 F
- }4 Q- G5 [. D/ B' y1 ~% H, y g
- run = () => {// 新线程/ t& A c: ^4 d+ R. S
- let id = Thread.currentThread().getId();7 k" d! C* a2 Q* ?
- print("Thread start:" + id);& x5 l! D$ B8 W5 h
- while (state.running) {
; Q* D- ]$ A; m' N4 ~ - try {$ y% @7 P* |" h# B$ F1 v ?
- k += (Date.now() - ti) / 1000 * 0.2;9 A: ~( S$ q) |2 r+ ^
- ti = Date.now();
; B4 b' ] K, |1 j j" D - if (k > 1.5) {
, _: W0 u" U" `& J, s0 s9 n - k = 0; |+ }6 T) j& `8 |. S/ \
- }, y% n* s* i t1 b
- setComp(g, 1);+ v3 B0 w* q, v; t# M) w$ P, r
- da(g);3 t$ G: r1 O4 p) y1 E( U% D7 n
- let kk = smooth(1, k);//平滑切换透明度
7 Q4 n: V5 ?9 }* f& o5 L; \& u - setComp(g, kk);
- x+ ~0 m9 R8 u) G. \ - db(g);$ k5 N" p5 Q |; }( _" V7 C0 D* c) i
- t.upload();6 X& g; N7 R2 e( c; j
- ctx.setDebugInfo("rt" ,Date.now() - ti);8 U, o/ p) K8 D% M% P8 R) v
- ctx.setDebugInfo("k", k);1 T v& b! D& D" S) j+ s( D
- ctx.setDebugInfo("sm", kk);
% l0 L! c8 X/ {+ z0 ] - rt = Date.now() - ti;
, h6 { t, p9 l6 h! r8 R - Thread.sleep(ck(rt - 1000 / fps));
' B. S! m3 C |- B2 Z - ctx.setDebugInfo("error", 0)$ D5 x' t) U" M
- } catch (e) {
- [6 d# r: K( g. e7 u - ctx.setDebugInfo("error", e);# b# `1 V4 I% x- W! V& F# g; D
- }& W% m [3 d$ K2 n6 k$ M- u
- }- Q5 `* i5 D# S6 H1 R" s; F
- print("Thread end:" + id);8 T" e: Z5 l9 C, ] X
- }$ l% d0 N& l/ {( s+ m( P: Z
- let th = new Thread(run, "qiehuan");4 N9 ?+ Q. m- A5 F4 b
- th.start();
: g' F1 m9 y6 M0 I7 b5 V* S - }
9 c1 }) c$ k' F% u# x
, l# ], j {. c% w; s/ S- function render(ctx, state, entity) {
. a* t$ p+ ^# G& o- z8 _ - state.f.tick();
9 t* u; i8 l4 P* V - }
9 C8 ]5 Q1 k" }4 P0 f4 B+ @2 P, w
" m5 Y3 @& V, g0 h+ _2 s- function dispose(ctx, state, entity) {
" t9 q/ \! k+ \$ l: [ - print("Dispose");
1 N$ B* [+ K" g' f4 F2 X - state.running = false;
4 C5 a7 \+ r/ ~# } ]; z - state.f.close();* Z5 Q/ |" Q4 Z, }
- }
& E0 f& ]$ I% y7 W - U4 B, n1 A# t' C* e/ o
- function setComp(g, value) {- r0 V0 {, @+ f
- g.setComposite(AlphaComposite.SrcOver.derive(value));9 `. f$ C6 i9 C* J& \( c
- }
复制代码 0 i ?* y: _) d4 b8 z. l
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。+ P; E, i% _: q3 v9 P
0 p. X# |. A, j1 H
: f* t$ I. p% 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)9 V- Y$ z4 G! _. o: `
|
|