|
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
×
# a4 f' T: ^- q* E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。+ s" S) Y; F/ N
- importPackage (java.lang);9 H' R0 f& A8 E) m+ H. w$ c
- importPackage (java.awt);) |- z0 s% O. E+ |4 y% J t. v- s
4 L: _# l |) z; }5 ~: e- include(Resources.id("mtrsteamloco:library/code/face.js"));1 g; w4 Y2 V7 P# W
: |3 b0 d. n( `; g& `" D- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);
5 B# b+ ` P5 N& R: h6 ]0 W
+ |- D K/ m1 D) W5 Q- function getW(str, font) {3 b- \, V: U: q# Y8 d& N. Z
- let frc = Resources.getFontRenderContext();; G7 c+ u$ B. \: c7 i! K9 j
- bounds = font.getStringBounds(str, frc);/ G$ ~+ g- t) f1 D# S) q
- return Math.ceil(bounds.getWidth());
( c# H' T+ X; U/ x8 S7 g7 f - }
& M8 f# @1 b/ ?3 R
( l; m+ t' f3 [6 h5 x+ `5 H% ~- da = (g) => {//底图绘制/ c7 N3 W, Z% h o; _
- g.setColor(Color.BLACK);
v6 y$ E1 N: | - g.fillRect(0, 0, 400, 400);
7 c5 E) X( b8 K+ x4 P- l( S - }: R0 g: s; m/ o8 G$ j: e
- % x5 Q+ y9 ?; \2 }; L2 j' }4 B% P
- db = (g) => {//上层绘制 a" @8 n Z K3 V3 J, X+ D! }
- g.setColor(Color.WHITE);
L X0 x. x4 `3 K( \- j - g.fillRect(0, 0, 400, 400);
3 x5 x) Q% F- B - g.setColor(Color.RED);
0 D* A; T: w# E; x - g.setFont(font0);0 o4 M6 V4 r8 }( @
- let str = "晴纱是男娘";
4 U7 g1 O% G, N6 S2 R: L$ @2 w - let ww = 400;1 p0 h3 s4 D* z! I! A
- let w = getW(str, font0);
+ z& p& B1 S0 O: ?. u! R& r - g.drawString(str, ww / 2 - w / 2, 200);4 O4 _: `5 x2 M; h3 a5 A
- }
0 V* L7 k% e! ~! j - 6 ` G- m9 B* c" s" \
- const mat = new Matrices();
8 [: m% {% ? \. B) B( E" r n4 d/ { - mat.translate(0, 0.5, 0);; s# v1 z* V H. `7 i' B
1 G$ A( L+ H9 K9 H- function create(ctx, state, entity) { {& _ Z$ P) I
- let info = {* s% B# S" \+ G
- ctx: ctx,
2 A' p7 _/ v/ e5 d- X5 p - isTrain: false,9 d7 N8 U$ x6 r4 e
- matrices: [mat],9 E4 b# ?" \( e1 ~. R
- texture: [400, 400],
* r3 ~4 H, k& ^( r: L - model: {. R ~9 g8 p$ C/ d2 h6 t- \, d
- renderType: "light",
) b2 g+ K2 }; ]% |; X - size: [1, 1],
) g H# C! f6 o - uvSize: [1, 1]( ~$ B% y' j' b
- }* E$ u2 k4 Z" e$ f0 y
- }8 u+ w( R7 z" N7 ]9 _* N
- let f = new Face(info);
4 J( n5 a+ V# A1 G5 D& H1 M% C - state.f = f;
( q) V4 r5 X8 P- V" T: z& _ - # l( n. f+ f, X% ^+ P9 H2 O G
- let t = f.texture;
- A6 F- L8 G- a) F- J - let g = t.graphics;
! y( @& H# s: E* M+ y - state.running = true;/ }9 v( X2 Y4 b$ U9 L, i% m
- let fps = 24;3 |8 B! @0 e) N/ ?
- da(g);//绘制底图
( H7 P' u' }' ]: z - t.upload();
) H- c+ I3 p, c& c - let k = 0;, X, b0 j/ s& E. A! n6 d' I
- let ti = Date.now();
2 o8 b# u) F$ ^' B; h: C5 n - let rt = 0;# I' ]+ n2 f8 C: q7 G; o5 g! k
- smooth = (k, v) => {// 平滑变化
1 I6 x3 ?( y+ i9 O; C - if (v > k) return k;) C$ D/ r8 G2 N% G
- if (k < 0) return 0;
6 T: W; `# B3 Z+ t2 o; H - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;# }/ |% g) _; v& R
- }% G) e3 h; X4 m) A9 U; }6 H
- run = () => {// 新线程 j# j$ L( ?. Z3 w3 @) a
- let id = Thread.currentThread().getId();3 L3 R& W: N$ a) h% x w" w
- print("Thread start:" + id);- _/ u6 |5 y) t7 M
- while (state.running) {
( Q# x6 J3 r% a* u- {' D7 u - try {2 j% L: k3 s3 S% J7 O! {2 S
- k += (Date.now() - ti) / 1000 * 0.2;
8 K8 S6 X9 q, m) f. a4 ` - ti = Date.now();% Z, b% k0 k8 ?% x! w
- if (k > 1.5) {! v2 N2 L* M0 r4 M4 g4 w6 d( t
- k = 0;: }) n+ l4 r" ? C8 C# [
- }
( \9 z6 B4 X% _7 G/ l9 s - setComp(g, 1);
9 j' B4 O8 @+ b( [+ h" i+ S0 q, ^ - da(g);
. }0 G% m1 U, }) w6 S" i6 I, P# Q4 p - let kk = smooth(1, k);//平滑切换透明度
6 c" @$ T+ d; c1 p - setComp(g, kk);
. _- b# Y/ x( q' [( m4 j& J9 E7 u& @8 r - db(g);
/ u6 @$ H" A. D1 z8 p F - t.upload();$ S0 @# `, j! g/ H
- ctx.setDebugInfo("rt" ,Date.now() - ti);
, o Q: n9 i9 S' Q; N - ctx.setDebugInfo("k", k);
; V/ r) a$ ^ q - ctx.setDebugInfo("sm", kk);) m! A0 B( e% a. F F" ^ C; J
- rt = Date.now() - ti;
; i+ U2 ~2 \4 T! ` e; q - Thread.sleep(ck(rt - 1000 / fps));
* \ O5 S: ~+ `1 }5 V - ctx.setDebugInfo("error", 0)0 z% \$ C! s( p' n# M9 F9 a1 }
- } catch (e) {( O! L7 }1 @# a
- ctx.setDebugInfo("error", e);: a; k) u2 n) i& W
- }
& P4 b! j' H1 s4 ?9 h4 _ ` - }
" P" n+ E, c0 E, l - print("Thread end:" + id);- T/ d4 Y- ?& ?/ a
- }
4 y% K4 _5 z1 |! k( _ - let th = new Thread(run, "qiehuan");
; B- `' D4 [+ s3 B& N6 K8 y - th.start();5 _9 H3 Y% H; }. q) B- v
- }% y8 u6 ?8 y; [; R
- . [5 W7 F; R$ d- {% l- d
- function render(ctx, state, entity) {
+ E; D; h2 Q. \; o `1 K - state.f.tick();
' L7 N5 h5 o. W0 [ - }) ]) g1 I$ x3 c1 N/ m U( w
+ H3 S# b) y {$ c8 }) Q- function dispose(ctx, state, entity) {
l( Y/ ]( \6 M: G$ j, ? - print("Dispose");* o, o( Z1 c9 t, j* J
- state.running = false;
" N( n3 F" l* q5 O7 F - state.f.close();
! T1 G6 q j" S# ]! b2 w - }
% g8 u, q) G+ Z. p y7 z3 x$ l& S
7 b* j+ ~. y- F0 F; _- function setComp(g, value) {
2 D4 x) Q- y. T% ]' f1 \+ s9 B - g.setComposite(AlphaComposite.SrcOver.derive(value));6 y2 r' N' ?# M" |( ~5 ~5 ]( x* s
- }
复制代码
5 c3 C) A4 `/ w& n) U9 Y% D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。
6 T: }, |8 L. T2 \5 T* @. S" Z
x8 J0 u% ]# j+ T3 ~) O6 T
' U" ?, g/ g! G3 V6 p. F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 G, U8 t4 m8 d. U3 m0 }! h |
|