|
|
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 L; R* P+ L' V3 b! e$ o A x {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。& q2 y$ r9 C7 C8 y
- importPackage (java.lang);; P6 Q8 W% w! x- _9 C( X1 }
- importPackage (java.awt);, M$ @ c, N! v+ q5 N+ R- J
- : X2 I* S- P# A" N0 U$ D
- include(Resources.id("mtrsteamloco:library/code/face.js"));% B Z( A2 e# _9 l
- 7 E9 O3 d" y9 `! |& X7 g g1 [2 H
- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);+ I" ^5 _- [: T: |* b2 g$ g
) b- ^; H# J2 o- function getW(str, font) {
W$ Q+ E7 L3 n- h$ ?- @! A$ p, D - let frc = Resources.getFontRenderContext();
- t: d. A/ T" S2 a5 w - bounds = font.getStringBounds(str, frc);
+ ^% K( b0 Y- p8 K. `; _ - return Math.ceil(bounds.getWidth());
9 Y q/ r3 T9 o& Y4 H Q2 v4 m - }' ~7 c! Z" g2 J- ^1 i e
- - `0 X n( r' @0 x% b: I
- da = (g) => {//底图绘制! L# v6 Q9 U0 L" ~; _
- g.setColor(Color.BLACK);
4 V/ Y) Y/ Y( ~ - g.fillRect(0, 0, 400, 400);/ j: n' {9 x- S o g6 ?
- }
$ n# m& W9 b- g9 u% I
; Q2 o3 `- g% A$ ?" m, G' T- db = (g) => {//上层绘制/ F; r7 R1 `" P! c, @2 m
- g.setColor(Color.WHITE);
! u# S7 q: j- t3 k/ a - g.fillRect(0, 0, 400, 400);4 b) G' \, r+ x9 K
- g.setColor(Color.RED);
2 A I# B" p7 Y* w' G8 C D7 a - g.setFont(font0);! ?9 y9 ^" j/ N+ F1 O- @$ R- R
- let str = "晴纱是男娘";. p9 h0 R" j; E/ k; m2 B
- let ww = 400;
F% c; c( d$ ?8 q- R' K - let w = getW(str, font0);
: K$ C) S9 B0 y v4 P7 L, x$ L4 ~ - g.drawString(str, ww / 2 - w / 2, 200);# H- f# [4 M- K; P5 d
- }
& z7 U, G4 {) @! M& I k" V - 6 B9 t4 @; q- Z! C$ J a+ E
- const mat = new Matrices();
* q) ]5 t8 d, V% d" b - mat.translate(0, 0.5, 0);& {" f. S+ N+ E1 j9 A" k
- / @& I( z- d' Z) z3 z9 x
- function create(ctx, state, entity) {6 |8 _" V! c2 D/ d
- let info = {
# N1 I( ?2 w- j4 E( D2 h* S - ctx: ctx,
& x/ `) E0 {2 e% A* S& T* f - isTrain: false,
. B* w' ?$ B' [ - matrices: [mat],* c! m3 F5 }" ~9 {
- texture: [400, 400],
Z. O" u# n) n+ L [$ a# m( B - model: {3 T: X" T' z- m4 [" b f
- renderType: "light",
4 D. {6 p* b5 o2 F. f7 e4 ~5 Q# s - size: [1, 1],
: N$ j' w3 ~6 K - uvSize: [1, 1]
) e) t* X1 b* {% y7 y2 M, { - }' S8 ~8 Y0 Q' w9 V% Q
- } `; ]; d; h& Y7 _1 s3 m
- let f = new Face(info);
3 N4 u5 x. D( P5 T) `' k - state.f = f;% n: h3 V& x$ s: y
. Z; {5 w2 A3 c7 g5 Z+ c- let t = f.texture;
, \ O1 U1 p0 b+ V& z - let g = t.graphics;
9 q- M8 O* h$ ` - state.running = true;* q3 Z9 X7 ~& K, h
- let fps = 24;. J4 \/ S+ ]5 F, f
- da(g);//绘制底图
& W _4 v# ~4 A. v { - t.upload();$ O/ g% S8 Y! d4 K
- let k = 0;
0 _* @7 P% [% q4 e+ s - let ti = Date.now();
3 a3 u6 E* C( `: R$ S2 n/ @ - let rt = 0;2 [" b9 G. F* ?% @
- smooth = (k, v) => {// 平滑变化2 w1 k8 {5 W }# _
- if (v > k) return k;- }: ] b- Q, p
- if (k < 0) return 0;5 o7 z+ F- S, y. k# O% O
- return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;
/ O6 U( b6 Z. Y# f: v2 }" g5 b - }
! a8 `2 z0 r4 J$ y1 v) \& N - run = () => {// 新线程6 m2 y6 {4 ]8 j2 A- r
- let id = Thread.currentThread().getId();1 a; }4 x/ K. |! Z" K: }
- print("Thread start:" + id);8 ~& b+ l4 a/ m' ~1 T: B$ j
- while (state.running) {* x" H% A' Q9 \% b+ R
- try {8 t8 r! t, F9 \6 z; [
- k += (Date.now() - ti) / 1000 * 0.2;- ], w; B6 q5 F8 m
- ti = Date.now();
! N3 N# G8 r* p - if (k > 1.5) {* c, ~! N; J: i
- k = 0;
, B# F$ c( M0 a* _ y- X - }
% x9 v4 H; d8 b; h9 A" L* m - setComp(g, 1);1 h8 J0 p2 \4 K, [( o p3 R
- da(g);
% ]; s5 L" U ~% ^$ k - let kk = smooth(1, k);//平滑切换透明度1 a3 v3 ]: q& r1 N) ?7 x7 |
- setComp(g, kk);! M9 M0 _$ j/ Y3 k
- db(g);4 p& i+ ]. k$ s$ `1 p
- t.upload();
# l d4 k+ f. Q9 Z/ g3 y - ctx.setDebugInfo("rt" ,Date.now() - ti);
# ^$ f4 H( s8 h& k B - ctx.setDebugInfo("k", k);* Q, z6 j# M7 _. v, g3 M8 R
- ctx.setDebugInfo("sm", kk);
8 B# _( y+ b( X6 R4 @9 f3 H - rt = Date.now() - ti;' E: q+ ~0 R* t' G, H5 _ b! {( j
- Thread.sleep(ck(rt - 1000 / fps));
4 a7 g2 `7 m4 r! D6 h - ctx.setDebugInfo("error", 0)8 x* o1 h9 M' W2 g3 y8 g; O# s+ A# {4 Q
- } catch (e) {
1 p" v5 k( W1 L( t# V - ctx.setDebugInfo("error", e);3 d! p- }) @0 X; Y5 T) w1 l+ v! \
- }9 F1 S3 a. s# L. k2 w2 l
- }) b9 U- ]8 y; G# h( O) O4 m% K" Z
- print("Thread end:" + id);
# q* V' h7 N, U* r - }
5 }1 `1 V! H/ S; `5 f5 r) ` - let th = new Thread(run, "qiehuan");/ Z! @7 J1 }% n8 q/ o0 c# H* X2 w
- th.start();3 t/ U: `1 }7 y
- }& P# t3 P7 C1 D* v! |, n
3 r: y, |1 Y6 _: f- function render(ctx, state, entity) {
8 m; a& U% c U5 e) J - state.f.tick();
& k }; u2 m+ Z% m! R+ Q7 ] - }
7 n* G! C" X" @3 { - $ J$ Z* } r ]
- function dispose(ctx, state, entity) {( D0 @* ~, Q/ ^
- print("Dispose");
2 b* u$ |, m# W. V - state.running = false;
- K+ {* }! }) |! j - state.f.close();
6 {1 m" B/ r) } - }$ S7 r R0 b' A5 `* v# ~
- : O1 k* |/ K# h- H, U. C- d6 S& f" u
- function setComp(g, value) {
; y1 g% d& s! [, v - g.setComposite(AlphaComposite.SrcOver.derive(value));3 C' Z: x! @) x3 g, g6 \9 b5 M
- }
复制代码
& _/ T- [% `; C8 O W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。
8 y5 b$ |1 e6 w' u" O% l# H6 P E: y+ X' D
5 ~9 Z9 m/ }* O# 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); W: }( {+ k* ` d2 X' o2 W: @
|
|