|
|
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
×
* U# r+ H( D) N2 R9 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。7 |6 p. I& u7 i; n4 _2 @
- importPackage (java.lang);
( R# Y) h2 O3 E$ S. s - importPackage (java.awt);" \$ ?- A" p; S( l' v- D
- 0 D9 g' g' \. G/ ^, q/ V
- include(Resources.id("mtrsteamloco:library/code/face.js"));4 u* V! y5 \- D, \+ D
/ l9 c- |" D9 `" O9 I- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);$ h' J2 d& y- _( i
& r/ S- s, {* j9 ?( M- function getW(str, font) {) ^% ]: x& P8 N4 l3 P
- let frc = Resources.getFontRenderContext();+ P1 }" J u) Z7 V! s4 g, M
- bounds = font.getStringBounds(str, frc);2 ?5 N; M. @" L& u1 Z1 U E0 l
- return Math.ceil(bounds.getWidth());
& n1 ?% C$ Q7 r/ f* q* G - }
0 ^) R W" c+ b) y2 i& \# S - ( R* Y0 H$ t1 |" T# k) q
- da = (g) => {//底图绘制5 D7 q* W v; Z+ ?9 M
- g.setColor(Color.BLACK);
3 Z' p c1 P3 [+ |+ s, n - g.fillRect(0, 0, 400, 400);
8 |, e( V% V; x# ^+ B. y# u( ?% _ - }5 R' e! N3 l& ~' V
- & p" u, S$ [1 \
- db = (g) => {//上层绘制
8 B' r: [" U. G# W$ |+ R: o - g.setColor(Color.WHITE);3 A" S2 v7 q5 i8 |
- g.fillRect(0, 0, 400, 400);
* |) i% _. n% m+ @+ H' C - g.setColor(Color.RED);) C! C+ I7 o) ]8 L8 s9 D$ W
- g.setFont(font0);8 ^# G7 N; S. ^% z
- let str = "晴纱是男娘";
8 _4 f; q5 g) K - let ww = 400;! c1 K7 N& f. y/ u
- let w = getW(str, font0);
2 ~4 g l0 R6 w; z3 P2 E - g.drawString(str, ww / 2 - w / 2, 200);
0 X& I* F+ G, d& Q0 [ - }
% S1 @# m" D4 q9 L; S1 n - ' x2 C0 f3 P( \8 H+ V* ~9 D
- const mat = new Matrices();8 @* P1 U' i" E) l( B
- mat.translate(0, 0.5, 0);
% _% r- ^0 y6 ~
: T0 B" S/ z y: {$ D7 ?- function create(ctx, state, entity) {( H: Q1 n. S* ~# v2 ~8 ]
- let info = {
) G) {* _0 U2 a! X. k* Y& z - ctx: ctx,
( R4 m8 b. K: {# r$ q4 q- g - isTrain: false,3 l5 A r; k0 ~) {: g5 s
- matrices: [mat],
1 {# w! J0 o* s1 M$ M1 K5 f - texture: [400, 400],- p; H4 {0 s" s5 R
- model: {- q, t- ]6 R% T$ j F& E8 N
- renderType: "light",
6 |; I& ~( F: L1 u - size: [1, 1],
+ T. \, F; j( T) m8 w2 d9 } - uvSize: [1, 1]$ O2 d1 ~& {4 h; G5 b7 G& g* C
- }, }# x5 b7 @. X, z8 o) v1 O
- }
2 Q3 b/ y9 Z$ v$ V5 T - let f = new Face(info);/ _! M0 x4 ~: Z8 k+ A; H, ?+ A7 V
- state.f = f;9 ?5 L# G, b# P
- 3 x. Z9 v, s) E" X( H/ B
- let t = f.texture;- z* P# z+ } \/ A7 |' s: P) J, h
- let g = t.graphics;
: j" o- y; B+ j - state.running = true;1 H" K% L- T) [+ k7 t: e0 H' ?4 U
- let fps = 24;6 w# V1 v; G I7 o2 h
- da(g);//绘制底图. u% N) D3 x" b$ U- f: W
- t.upload();" P- P0 k% F2 o3 z
- let k = 0;2 }9 L' }$ |1 i; |
- let ti = Date.now();! w* k$ m K$ H- h% {
- let rt = 0;
5 ~4 \9 } j# S, b, j+ g( `, H - smooth = (k, v) => {// 平滑变化8 e7 y( a) p9 O9 G3 Z
- if (v > k) return k; j% ~( A& v) a& J+ u
- if (k < 0) return 0;
) V- V7 t+ f6 W2 r# M2 z - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;% E2 w, e9 R2 {0 i0 |1 a
- }, V: `! X! o+ \4 @3 A& F9 D
- run = () => {// 新线程
/ h0 o) N4 C2 `: M# r6 v1 Q& J - let id = Thread.currentThread().getId();
& ^2 f) h2 U$ X' k2 F' I: ~: B - print("Thread start:" + id);0 {5 X9 T% n3 ~0 E% N* i
- while (state.running) {, |, j) f& f- N# b/ `
- try {/ N$ G2 Z5 H8 _; b7 B( Q& \
- k += (Date.now() - ti) / 1000 * 0.2;
/ c0 t# J+ }, T0 |# E6 L - ti = Date.now();
w! n9 j! P {5 p( w6 y - if (k > 1.5) {- A8 H1 `( F: x
- k = 0;: k* N8 T* @8 X N# j& w) B
- }
+ d' k A' c; p& b; |4 \ - setComp(g, 1);) C; P6 B3 z5 p* A1 {& S' s
- da(g);* F8 p( _* K0 b s* j
- let kk = smooth(1, k);//平滑切换透明度0 s) k6 Q4 U" f$ Z. ^
- setComp(g, kk);- n6 |) l! j, i# [
- db(g);. P/ D9 Q t1 n
- t.upload();% w" R, b8 p5 _6 W3 p$ }) W
- ctx.setDebugInfo("rt" ,Date.now() - ti);8 y( U4 q* y% @( _
- ctx.setDebugInfo("k", k);; Z# G, ^; x3 m7 |
- ctx.setDebugInfo("sm", kk);, z, n7 ]: O6 }( l! }2 k2 Z
- rt = Date.now() - ti;
/ l% R# o0 ]3 m; j6 k: x - Thread.sleep(ck(rt - 1000 / fps));$ b Z6 U; w/ G6 {
- ctx.setDebugInfo("error", 0) K3 W1 k4 |& P
- } catch (e) {
# Y7 E |9 O0 E* } - ctx.setDebugInfo("error", e);* t7 G; e$ j. Q& M& _0 o$ {2 G7 k. g
- }
( W" V( B- M& d8 n - }* }6 Z7 I; P0 S. K& E# \
- print("Thread end:" + id);
H3 N- X/ ?* l! n - }
4 {# ~$ x" D. H, h2 ~# U. _" T, e - let th = new Thread(run, "qiehuan");! `2 D& ^5 q# |& m, p
- th.start();
' Z4 O8 t0 l- @ - }
, B: {, L8 e) D3 {- h
% b- f1 `' C6 c/ H. I4 w+ ]- function render(ctx, state, entity) {
3 \1 x! f; q1 H( o# R - state.f.tick();+ N, L4 }7 ?6 u! o# V* u- y
- }
, L2 o! ~& n- U4 u2 y - V/ }" D: F: L! r/ }
- function dispose(ctx, state, entity) {
; T$ B0 v6 j8 q7 y2 h" f - print("Dispose");
* a* i9 w: _' {% }; N- v - state.running = false;5 ?$ M- o% c; B7 U& z
- state.f.close();: S, G9 k a" ~" q5 p" K6 d3 ^1 B
- }6 i+ f, H5 `6 t2 z
/ _) x) V& U$ A$ p- function setComp(g, value) {1 Q) n) ?% I' P# B. @
- g.setComposite(AlphaComposite.SrcOver.derive(value));
$ G$ \4 i' F/ N - }
复制代码
C' ]! I4 |1 j' H9 K3 ]+ a, S- e- |- G' F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。
( |- k$ ~/ N/ V" ]) {3 c
* m6 B6 O# B0 g. A& l6 ^" w# \* N L4 B3 \2 X4 K
顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下), r: t: n% H- u2 r0 w1 x7 Q, g
|
|