|
|
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
×
9 l* }" L# a/ I6 t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。
, _ V( c# [ u8 s# v- importPackage (java.lang);
! Q( }9 }% `* ~ - importPackage (java.awt);
z9 u( S. k6 D' a - / l1 Z' y' k- G! q) D
- include(Resources.id("mtrsteamloco:library/code/face.js"));! t& }0 p' A; ]( w6 D
- 9 [! z E7 [1 b3 d5 A
- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);
8 t+ z; U7 v2 Z1 V8 D - 9 [6 r0 R" b" _8 H
- function getW(str, font) {! N2 T) u# }- g) }2 ?! U" O9 D( T8 v
- let frc = Resources.getFontRenderContext();
& U4 a7 M5 z2 I/ y+ N2 P - bounds = font.getStringBounds(str, frc);% Q4 T7 m$ X* l
- return Math.ceil(bounds.getWidth());
/ D& v( x. }1 S- J# f( } - }
5 x G7 y$ ~* ?4 y - $ T$ a7 f# m/ m% u4 L
- da = (g) => {//底图绘制1 w- { X* _" S& w
- g.setColor(Color.BLACK);: c4 u' F, v: F) K, ]8 ~
- g.fillRect(0, 0, 400, 400);6 A9 x4 M, _, D
- }% m X' Z: ]- {( J5 w
! O4 x: W0 r* q* g1 f% B j/ ^- db = (g) => {//上层绘制
8 h( J J: u" g! o. l9 S - g.setColor(Color.WHITE);" [/ t# ]& v* C! g3 i( ?1 [
- g.fillRect(0, 0, 400, 400);
- I4 V9 r- l3 f$ B2 `3 k8 Y - g.setColor(Color.RED);
" x1 {& D J4 l8 ?# a - g.setFont(font0);( [- d7 r3 _4 F* v7 W7 M& E
- let str = "晴纱是男娘";
+ L M( F7 v0 j- y. H! R$ I3 U - let ww = 400;
# C* s2 U9 g; v% A3 } - let w = getW(str, font0);4 H/ ~! Z8 v: S% M3 R( G& d
- g.drawString(str, ww / 2 - w / 2, 200);+ e6 a6 K. E; i$ s
- }6 J. b2 O5 G0 H: V" u* p3 C( W
- & D% T6 z7 j) B2 E5 _1 P2 c* p
- const mat = new Matrices();. g$ x/ m% p. s% a
- mat.translate(0, 0.5, 0);4 u. B# P: V# N+ }1 m
- 4 b& j' L3 x4 X' X6 K
- function create(ctx, state, entity) {
7 y% b% y3 G# ?* ~ - let info = {
& c/ |/ o3 }; B+ s2 y7 ^ - ctx: ctx,& a m7 h7 N4 y X
- isTrain: false,# a4 s2 c, w) i h6 T- @! V
- matrices: [mat],
4 G J/ N4 y; \+ m - texture: [400, 400],# J, _5 z# z' p) Q$ Y
- model: {/ i5 F% E$ j& I0 S) b
- renderType: "light",: p- { q8 [1 Z" \
- size: [1, 1],( e' C& g$ y& A Q" c" w) w
- uvSize: [1, 1]
/ S# C7 `# b" F8 F - }
& a( ?" g$ h6 x/ z - }8 G. T' V1 B) C' M- h- y3 D" Z
- let f = new Face(info);; m4 o! h) V2 T% p, W% n9 u
- state.f = f;7 D; x: S% t8 w7 E( k
' l" W8 K# ~! m, y! C, ?- let t = f.texture;
7 ]2 |# {8 K% J5 ^! k9 S0 V$ J* s4 r$ D - let g = t.graphics;
% X V$ Y7 @# k, i- L E - state.running = true;
* z8 M0 q: t5 N9 H' z - let fps = 24;
- r$ a+ V6 `- q/ Q; y& v7 | - da(g);//绘制底图# n5 b- B4 p# B3 z( x
- t.upload();" O$ v# x% T3 l3 Z5 Z c
- let k = 0;
* U8 E% f- B2 r/ T9 e6 K# | - let ti = Date.now();
9 `4 U& S+ _8 _1 _, `8 { - let rt = 0;
! B* S' ~3 H7 d7 f1 A - smooth = (k, v) => {// 平滑变化
- z; f2 W$ n% ?- E& B6 c# Z0 o+ o" h - if (v > k) return k;. K' m' [! `) p: D
- if (k < 0) return 0;
/ g- J9 g# ~6 X9 z; d; _ - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;
6 H: T6 W/ t) d& [ - }3 i q; t5 B+ M# ?7 o7 R V5 `, j
- run = () => {// 新线程9 l9 L* O' a' s- ?+ n/ |( J
- let id = Thread.currentThread().getId();
; @, h& }9 o8 i8 U/ F - print("Thread start:" + id);
5 a9 J$ u& n3 i1 v" U - while (state.running) {
' c( _( A9 s. d% d8 p5 ?$ N3 c: R: M - try {3 b# J W: M4 ?8 K
- k += (Date.now() - ti) / 1000 * 0.2;
% d% C0 P" X& `7 [1 p# t% e - ti = Date.now();. @) _5 {1 w5 p" [9 R, m; @
- if (k > 1.5) {2 W/ R0 F' v% T7 q' ~$ L! J6 ]
- k = 0;
! }2 R! Q& O+ p. q - }# A& b" Q" {! f+ L) j% S
- setComp(g, 1);2 k* _! v8 m0 h! }( M9 [
- da(g);: A, U- w) X2 A7 u$ z$ E) }
- let kk = smooth(1, k);//平滑切换透明度
' u4 V" n$ R1 x1 O, E) R' i - setComp(g, kk);
; y7 Q3 ^, K) X# B( R - db(g);
! G, l5 y% W, H5 V. d& m - t.upload();5 j8 H! @* f6 D" B' D2 ~: o7 {; j
- ctx.setDebugInfo("rt" ,Date.now() - ti);
3 O @5 {/ c6 M7 a7 p n) r5 j - ctx.setDebugInfo("k", k);9 D, b: ] d8 F* a
- ctx.setDebugInfo("sm", kk);
; }; ~, G: M; O4 o - rt = Date.now() - ti;
- W# N) c5 \8 v3 p* ]3 }) }8 g0 E - Thread.sleep(ck(rt - 1000 / fps));4 F3 }% `8 b7 O/ ]- I1 E+ c
- ctx.setDebugInfo("error", 0): b/ | ?- e1 K
- } catch (e) {
8 P; a( E; j! l - ctx.setDebugInfo("error", e);
$ R+ `: r) Q4 q% o - }5 j- q6 }: I' m6 r$ ?) ]- q
- }
4 }( X+ ] N- P3 R2 f - print("Thread end:" + id);
5 V. w; s' r( L* ^# Y - }$ T. c# {" r* `, C* O
- let th = new Thread(run, "qiehuan");0 K/ J1 U- R! g9 ?: ] h2 r
- th.start();
4 V; [( P2 J. t - }% n% s; @0 e& S z [1 J7 n
- y5 V6 `8 m! C7 J0 ^: H
- function render(ctx, state, entity) {- p) ~) S; m! H7 O* E2 D: c
- state.f.tick();3 ?7 E0 m6 M$ Z9 B) x
- }
$ Z/ d- k% V2 W! K2 H - 7 F% l8 p( O$ n4 x
- function dispose(ctx, state, entity) {
( `5 J5 k0 w/ s' I. m - print("Dispose");
+ ?, B. K8 l! m+ v! ]' M" Q1 G - state.running = false;
) x @7 ^2 t+ z: R' [6 S; l - state.f.close();
+ P/ ?8 M9 H: P" p - }
% K0 y. n+ F3 t/ b% A o! c$ h- V b - % H( O3 U7 M/ P7 U( E8 Y
- function setComp(g, value) {
& G7 Z6 Z, j# q - g.setComposite(AlphaComposite.SrcOver.derive(value));' }8 c' v0 G! S9 G2 j7 Z, Z$ f, l
- }
复制代码 5 }+ N+ v% l2 X. t( Z
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; o3 v' a) _. l( b
1 F5 u3 K* F0 a$ `7 c
' `/ G6 Y- c- C1 i! w* 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)) B2 {6 G' C0 i8 o0 C! @
|
|