|
|
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
×
: a- V$ z2 t2 I5 e+ a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。. {9 m t( m i' m+ d, j3 Q, @ S
- importPackage (java.lang);$ J( `/ y" _7 u& X) I b
- importPackage (java.awt);- a& Q9 }4 {- `0 z6 J. l
- : Y! Q- k+ c9 g. b
- include(Resources.id("mtrsteamloco:library/code/face.js"));5 N7 B- `" k4 h
- s+ A) }+ X" b; q! j0 \
- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);
; [# p8 S. B, p2 @7 M( f& o
) B) f7 y9 ^3 w; c+ v- function getW(str, font) {
3 C) n0 e5 \0 G9 ]! s - let frc = Resources.getFontRenderContext();+ W W6 {% {; `) }: E& k( @9 r8 W
- bounds = font.getStringBounds(str, frc);
7 o/ w: H! b i0 O8 T - return Math.ceil(bounds.getWidth());" R# Y& q9 [1 a# i; l
- }' G) |6 F8 W3 b+ k
- N$ X4 v* N1 z, v# H
- da = (g) => {//底图绘制) }* F" }. v! K; `; q3 `
- g.setColor(Color.BLACK);
# J! u6 H3 X7 r' O - g.fillRect(0, 0, 400, 400);
, _3 s9 _, Z# M - }
9 j7 c# `, C& x* q
2 ^& ~+ j7 r4 _- |0 H$ K& N' x, |/ |- db = (g) => {//上层绘制
6 W J! l$ `- o" _) U# M - g.setColor(Color.WHITE);2 h0 Z4 \4 i+ L* u
- g.fillRect(0, 0, 400, 400);+ m1 `8 Q! X% L/ I ]! Z
- g.setColor(Color.RED);
' q7 [+ E7 n. b) R. H# S" \: n& D3 a - g.setFont(font0);
, l5 q+ B7 S% i - let str = "晴纱是男娘";% u; v. t- b5 y' \2 m7 y- ` e' a/ t
- let ww = 400;9 d; E4 g8 b0 e8 e. E
- let w = getW(str, font0);
9 g- X1 M6 g/ w/ ^, S7 ^ - g.drawString(str, ww / 2 - w / 2, 200);
" k7 z: O/ \) m! A" m" i - }
2 G O" e& T" D% e - ; q3 t) Q7 n* r. T0 }7 J; w# x
- const mat = new Matrices();1 I7 q0 d5 I0 J1 L5 C8 {
- mat.translate(0, 0.5, 0);
8 {' L3 s% p; p k' z9 E: o
3 D A7 I8 E. j( s9 O1 P' M- function create(ctx, state, entity) {
( d& A6 x1 g9 o$ q$ U( W - let info = {8 n0 x7 [2 y7 O; E4 }* L/ k! t
- ctx: ctx,
* Y- ^3 J& \ }& J4 O - isTrain: false,
( M5 `3 Y& i+ B0 }/ ]% A - matrices: [mat],& v* u! J |8 J$ E1 r9 c
- texture: [400, 400],9 M( R e+ Q1 O* A- x" G! k* C0 o
- model: {
8 t+ J u$ A6 V* R Z" ? - renderType: "light",
( d3 @/ g0 t' B6 n% z; {' |& M - size: [1, 1],* d* {0 W. T# S4 \' w$ E
- uvSize: [1, 1]
0 [( Y& t2 z7 ?: s - }
3 f6 s# f3 O3 o* b: M. Y+ b - }/ A D( S1 a2 L! w0 S# Y2 k
- let f = new Face(info); k/ {* g N. P& f" u( R) J
- state.f = f;7 a C9 v% l9 M+ ~& T( ^. R6 G
- 5 z! x) o2 @- @* J h% S
- let t = f.texture;7 X$ U: B% j( C1 d
- let g = t.graphics;
$ m" o0 P) U" t, w* h- d - state.running = true;7 ]& ~( s: q5 u' T4 S2 }) t
- let fps = 24;$ Z% p' h5 g; M2 P; g
- da(g);//绘制底图4 I% i/ _1 ?' z1 R
- t.upload();
, u& L9 W4 _+ ]4 q" p2 N - let k = 0;3 B& K- |6 |2 ~4 H+ l
- let ti = Date.now();
) [$ h8 W1 V, C, |' q2 m - let rt = 0;6 G6 l X7 v: O" m
- smooth = (k, v) => {// 平滑变化' W S( g9 F8 Y
- if (v > k) return k;
! r3 q* S, {* E - if (k < 0) return 0;4 M2 b5 b1 ]2 U/ J' A0 G) S
- return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;4 m) P* T% `5 I
- } B% E& `# i+ U' m3 x! l4 t
- run = () => {// 新线程! M) _- D1 a" k) a1 o8 X& C) ^ I
- let id = Thread.currentThread().getId();' u3 q2 w" v4 d
- print("Thread start:" + id);
4 Z1 k& q1 W) K1 N! L - while (state.running) {
0 I: r1 |. M' I- \ j6 V8 Q5 P - try {
% R) c3 E# s7 Z5 X) C - k += (Date.now() - ti) / 1000 * 0.2;& {% r" q6 k3 I: F: J
- ti = Date.now();
" a5 I" t+ l! m% Z4 I' S - if (k > 1.5) {' K( |3 g: p% ^! T/ I& v/ s6 Z
- k = 0;
3 D/ @. l# h; v- {' B; ^ - }7 E. R: Z. J% P$ b" E8 B
- setComp(g, 1);
& d8 ?8 b0 d* z: b1 P - da(g);9 B l& d: [% ]& m9 l( x& n
- let kk = smooth(1, k);//平滑切换透明度
- ?2 B0 y7 ^8 V" \ - setComp(g, kk);5 {$ U6 k0 ~, l9 y1 c
- db(g);9 L; x+ k' R$ ` u* G; B5 t& ]
- t.upload();( G' Q7 S( ?1 u5 S3 ~: p) {
- ctx.setDebugInfo("rt" ,Date.now() - ti);
) z0 G& a2 A7 r% ~ - ctx.setDebugInfo("k", k);7 ~/ m3 C; D: M3 M
- ctx.setDebugInfo("sm", kk);
4 u9 b- D8 o$ e4 D2 V5 S$ X - rt = Date.now() - ti;* X2 E" T3 U9 @' r, C( T
- Thread.sleep(ck(rt - 1000 / fps));$ q# M1 Y. u: }' z
- ctx.setDebugInfo("error", 0)- ?1 Q ?% S9 M9 z- [/ R
- } catch (e) {0 W- i! U8 K3 e/ O$ ?- r; P: u( X" S. _
- ctx.setDebugInfo("error", e);
2 h C# J3 H! _) ]) G, b/ ~( B - }- |' e5 M( }. d% d' e6 O
- }( V* f9 X3 [3 z8 [& j0 M
- print("Thread end:" + id);
1 Y9 ]# u" _8 E2 x$ v6 b+ }# } - }
8 y4 t9 u, Q& W i A9 L4 ]0 _ - let th = new Thread(run, "qiehuan");1 G! E: B3 b5 e N5 m4 ]
- th.start();
& b ]5 E0 J4 r) S0 w, z, d% G - }
8 E0 d4 p [" L$ g v) a
3 m" m, r m+ A4 o& M+ n2 F2 d6 e" E8 G- function render(ctx, state, entity) {& ~: @4 k, H0 @" K' s/ L& n
- state.f.tick();! O$ J9 w, O. b
- }/ h7 S% f% A5 l! p; m
# s, b8 E9 I3 W5 N- function dispose(ctx, state, entity) {
% ^+ Y5 Y8 b' Q" @6 G4 K - print("Dispose");. d8 u k8 U& p, Y7 I* f8 R
- state.running = false;. n! Z8 s* j, r9 `) @% L
- state.f.close();4 ?2 C2 x7 t$ i2 Y& |
- }
' W' W' e6 u2 m2 n2 A) ~4 }# B - 0 O5 u. X* @" C8 B- P3 K9 n8 [
- function setComp(g, value) {
7 ]5 |! E& J( A - g.setComposite(AlphaComposite.SrcOver.derive(value));
" T Y* J- |0 m' i - }
复制代码
$ j* L) n- o) a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 f6 Q' T, h6 s5 b3 q a; K w' _1 i* Z
- h# a k+ b- `8 Q: e- @6 g
顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下)3 a7 N. Q. O. H& F5 x3 `7 S
|
|