|
|
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
×
/ e1 B) }% U* t2 ^+ G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。
' g& ]. B+ p3 T6 \% D- importPackage (java.lang);
0 l) j" V2 i" S: B1 e$ R - importPackage (java.awt);
L5 s: }- v# U7 N0 S+ ]4 H - " C4 B) ?* B4 b, b9 j
- include(Resources.id("mtrsteamloco:library/code/face.js"));- s- w+ _. b8 q* C( ^
7 z& E' w8 g# R- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);
" l1 u- O! M! v/ K - + W( x! x& N5 m4 {2 p9 k7 S2 A1 P. ^
- function getW(str, font) {- P$ K( n: V; g# H9 O x6 Z
- let frc = Resources.getFontRenderContext();* Q; S& P4 v- N$ n( ?4 h" p
- bounds = font.getStringBounds(str, frc);6 N7 W; ~/ J: ~; M" t
- return Math.ceil(bounds.getWidth());
% P/ m: J6 A3 o. G - }! {. q; e& a |; @* y
( v. S; a% h% s$ @) [- da = (g) => {//底图绘制* T. ?# M) Z5 w$ j! B5 ]
- g.setColor(Color.BLACK);
9 U2 L! u7 _) `7 x Q$ J+ w9 @ - g.fillRect(0, 0, 400, 400);
& g" K) C% b+ ?' U# i - }
4 [% W0 h( r* }! v, @6 e - & g5 g4 S4 D Q+ P3 j }& x5 l
- db = (g) => {//上层绘制: D* T# d/ S( T4 w
- g.setColor(Color.WHITE);" o8 k6 a I/ a9 U3 H( |% F1 w
- g.fillRect(0, 0, 400, 400);* b1 b. p) @ c K Y' [- Q. ?% }
- g.setColor(Color.RED);6 t+ J# c) \2 Z% S
- g.setFont(font0);% ]6 W G: S, V
- let str = "晴纱是男娘";, V8 G; Y7 c2 B. U
- let ww = 400;: P. A* H O p ~' |* H
- let w = getW(str, font0);
: j& d0 D) r6 y4 n - g.drawString(str, ww / 2 - w / 2, 200);
$ `; \: e0 {* m6 D% m - }5 s: P l, f& S! x
- ; C; x1 F- Z" e; \5 g9 B
- const mat = new Matrices();
& ?& @' V8 C" X( J* R - mat.translate(0, 0.5, 0);
" ~1 [' X6 j- L0 b+ M( u& g) @
* w5 A7 s4 I/ Y- ]3 I/ l- function create(ctx, state, entity) {
. z* y- _+ Q M - let info = {3 y4 F& T% H8 u+ x% H: S3 [& s
- ctx: ctx,5 u+ S+ T. R6 y2 |$ O$ |5 ?
- isTrain: false,3 p7 X4 f4 E' \5 W
- matrices: [mat],3 N* R% d9 [' c* H
- texture: [400, 400],
3 |# g; Y* _& i( o5 k - model: {
9 d; g9 V+ _: L! Y( g - renderType: "light",+ P" D) Z$ j( ], _* P( T
- size: [1, 1],
1 F, J* k) Z0 m' C. f+ o, s. N - uvSize: [1, 1]: W. m" F( n; m/ d& E7 ?+ [
- }" A8 X" U$ w1 j4 g; Q- e" R
- }
4 n1 f# b% z% @0 D2 `# | - let f = new Face(info);0 m& O7 n0 `1 E, E4 j& N
- state.f = f;! o+ W% {8 G# x6 B" f* k
" h# u# I7 v0 X0 R: A Z: f- let t = f.texture;
6 E$ C/ K/ J& q- d - let g = t.graphics;
3 H* v; s0 Q) B# A" B* c - state.running = true;2 `7 H% M( G: @: }5 ]9 ]6 b! n, H8 u
- let fps = 24;# V$ z' J4 E5 @* R$ l- X
- da(g);//绘制底图2 s4 ]- i# n1 ?6 l2 c: E
- t.upload();
5 ^6 Q8 h2 H2 \# o0 p0 A - let k = 0;
( y. n) z; r2 U* q7 d - let ti = Date.now();
2 f3 Y( p" s% T' W* C8 e' z) Q0 w - let rt = 0;
" K$ z: n3 h3 @7 a( s# Y - smooth = (k, v) => {// 平滑变化* R) G3 a# n6 B) A0 `7 j h% f
- if (v > k) return k;
3 J V$ q7 z0 g- K9 l2 L0 | - if (k < 0) return 0;
" | v w S9 y, U) f# Z - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;
, y6 J1 S/ B- w, a) L& M) C - }1 [" G+ C6 f6 n% r
- run = () => {// 新线程. ?" L/ j; |. t8 x# n
- let id = Thread.currentThread().getId();# }. T, w) O% ]- X! z: S* C7 X
- print("Thread start:" + id);+ p6 @0 n" Y1 X$ N9 l" d# l
- while (state.running) {" L4 K3 W; Y: c9 J1 `* \$ H
- try {( i0 B9 v3 `2 l: d
- k += (Date.now() - ti) / 1000 * 0.2;) r5 _1 E1 l! u
- ti = Date.now();
1 M1 @# p1 W4 s, s: h7 Y% w* v - if (k > 1.5) {4 c9 s Q* |+ P
- k = 0;
5 v5 P, z7 N8 p" i - }
+ _9 G% Y, C3 G% s - setComp(g, 1);: w8 I% ?2 e. h( \0 U) d
- da(g);
. X& V& e3 F7 n/ [ - let kk = smooth(1, k);//平滑切换透明度
& x; b6 E6 q- L8 I( X - setComp(g, kk);1 `; Z8 R4 O( w/ F
- db(g);$ K1 \" f5 T' A) n
- t.upload();* a* Y* G+ L, | B+ s; M
- ctx.setDebugInfo("rt" ,Date.now() - ti);) e7 w' B, `3 r) L: P
- ctx.setDebugInfo("k", k);% s! {# l0 z+ S
- ctx.setDebugInfo("sm", kk);
7 Y0 c2 S: Q8 J/ N' o9 w! t3 B - rt = Date.now() - ti;
1 N$ D" r5 f6 u; h4 h: j5 C9 |: ~ - Thread.sleep(ck(rt - 1000 / fps));
( z, g$ ^9 G( ?+ R - ctx.setDebugInfo("error", 0)
8 J5 X$ F$ ~% d1 [8 ` - } catch (e) {
) |1 Z! r+ e; L6 o" I& H0 H - ctx.setDebugInfo("error", e);
" k$ m; u- w' x$ A - }
2 T, R7 ]9 o7 F) @9 b$ q- ], A - }! M. U/ [5 m+ ^% \* d- X
- print("Thread end:" + id);
6 e' S- ] H: a3 F5 S" k) \ - }5 Z8 |) F) r1 T9 p! Z( G1 \
- let th = new Thread(run, "qiehuan");
3 t1 b0 I6 V" K! z2 H7 p, n, C; R( z( i - th.start();
6 B* L% P% M; U4 c4 I1 _ - }
, t+ @% H& }9 V- F, m" w# S* ] - : X$ g- C# o5 }- h) D% m& d3 O N
- function render(ctx, state, entity) {
3 i+ l) P! z/ y- x, ^- |0 W - state.f.tick();/ E# e8 {- V) F% f% L% H
- }
0 Z! n5 R$ d$ r& t1 h, j9 `2 d
# l1 h' S: b5 l: \' t. s) P8 T- function dispose(ctx, state, entity) {. ]. {& R/ y; F- c8 \, H3 `
- print("Dispose");
6 \1 T5 ?1 `$ W. H K( P6 S - state.running = false;
6 p& l) ]! z7 T( J7 {" {3 H - state.f.close();3 Y) U3 K6 `3 C* g8 V* I1 x
- }
" n( U Z5 j4 R8 c$ L( u
2 \- \7 M; R* M. {- function setComp(g, value) {$ o0 ]9 L$ Q* G a/ R3 v
- g.setComposite(AlphaComposite.SrcOver.derive(value));$ y4 I4 E/ b; L
- }
复制代码 5 l8 J: {1 T! t, 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。& {- `* Z) q6 h
[6 e/ c3 O' Q# |( g7 j8 H3 I% d! p2 d8 c
顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下)
0 ~, f, M3 x7 v: ~4 e, c' \ |
|