|
|
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; K( s# M5 K/ `4 D9 j/ n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。
' r; y2 N& R+ f) S( O) o- importPackage (java.lang);9 o, X* Y+ N8 u3 r( a
- importPackage (java.awt);1 t' G% L, T- P* O" @( ?! D4 P
0 Q4 y: M& o: S/ {% J. y+ O- include(Resources.id("mtrsteamloco:library/code/face.js"));
. O% U7 C, {7 h. H - . y( }7 b% |6 M2 `8 B4 A. @: d# \8 r' c
- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);- f4 P3 P" p% U$ e% I/ C
- 3 }3 P% p5 S @' T2 D4 t5 q' c& A
- function getW(str, font) {
+ a0 w) K! @) z$ _ - let frc = Resources.getFontRenderContext();
0 H7 g. S. h7 N8 q - bounds = font.getStringBounds(str, frc);
\% }9 A" l6 S' s& ?& F1 V0 S" G - return Math.ceil(bounds.getWidth());
$ B+ O* z( v) K - }1 V$ H& t; S9 S) D* C8 I
- 4 }' ^* U5 O2 W. j9 g& Q9 c
- da = (g) => {//底图绘制0 `) |* i- ]6 y# L
- g.setColor(Color.BLACK);1 V. t5 N( h2 b9 d
- g.fillRect(0, 0, 400, 400);0 }# e: b* E" C2 o- K9 M
- }' F2 X1 s' }: }. y9 k7 J4 y
: P- C8 r# p8 e2 x# D$ q- db = (g) => {//上层绘制7 p* z1 ^7 F4 h! v1 w. S0 g
- g.setColor(Color.WHITE);
8 Q/ _( N1 ?, X4 ]; H* [3 a: x( \5 e - g.fillRect(0, 0, 400, 400);
5 P5 M. \6 k1 }7 j' `% M& ` - g.setColor(Color.RED);
& r6 _" }* w$ O - g.setFont(font0);
1 P f" J2 Y+ _( b - let str = "晴纱是男娘";
; M" ?4 ^ B% s' Y4 Z6 E& ` - let ww = 400;
- O1 A9 u/ n1 v& \( Y - let w = getW(str, font0);
# n% y% n# c2 R9 @. e2 i' r* c* ?4 i - g.drawString(str, ww / 2 - w / 2, 200);' X" r9 u2 B( w% Y' m
- }, I- q" G8 b9 I
7 S3 h& G+ ^" ^+ f6 p- const mat = new Matrices();
1 Q" D: e$ d, y - mat.translate(0, 0.5, 0);4 q* N9 s: h! ^, T: [$ ?
- ! h/ S# E- J1 c# y
- function create(ctx, state, entity) {
8 G, F3 x5 }+ ?9 j& H - let info = {
/ ?. H" \% ^& E _/ m/ h) R - ctx: ctx,1 q/ y7 \* N# {* r3 }' q$ \
- isTrain: false,
) m0 R8 q7 Z* C/ c/ b% s/ c - matrices: [mat],5 v/ ^3 e2 H7 d! X
- texture: [400, 400],5 r2 m. @+ L* @2 m% `+ y7 k2 `
- model: {' V! s | K I6 u0 t: Y
- renderType: "light"," u; Q3 E3 h" g* V1 r* X! Y
- size: [1, 1],! ~9 P1 h: c3 t( t- g; v9 S
- uvSize: [1, 1]% t6 B/ t5 l1 f" c; W1 e- c
- } J! C7 X3 ]' C& U. v+ m' [9 K
- }
6 F" V5 S v' q! v: } - let f = new Face(info);" F% Y$ o, q' \. K5 M0 V
- state.f = f;+ Y ]7 Y$ E- G" }* [' ^, [
- 6 w; w0 a/ T& a
- let t = f.texture;
8 f ~/ m' v2 l2 J: c - let g = t.graphics;
, m# a4 Q0 d% a! p( d* ` - state.running = true;. i2 H, W/ {; {. H$ P" z) E
- let fps = 24;
& U& C8 i9 x1 u; f1 S - da(g);//绘制底图
4 q+ O9 w: D) {8 F+ X6 m+ C5 a - t.upload();
9 m# U9 l" M& @1 b5 r3 Y - let k = 0;9 Q9 k- e0 P5 F: C! ?+ n
- let ti = Date.now();3 L/ p* Y4 C8 A' |9 v* d
- let rt = 0;7 m# T* n! h- g; X
- smooth = (k, v) => {// 平滑变化
9 p6 \, X# e" k7 B - if (v > k) return k;: M: J& {: ~7 J
- if (k < 0) return 0;
" z; O n" a; Y3 z& Q8 }4 Q - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;4 r: }$ ^! O( E% U8 Z, r
- }
, q$ D7 S: G- a1 }. ^7 y3 E% T# K- u. ? - run = () => {// 新线程) N" f8 y0 }8 u. D" d* ?6 r
- let id = Thread.currentThread().getId();) i( K7 G3 q* [. q0 q) s# U' x
- print("Thread start:" + id);
* K1 m8 ^5 C: f - while (state.running) {
1 d: d" }, u. R N - try {1 _! I3 c! U! x/ }! b% w3 p% X8 f
- k += (Date.now() - ti) / 1000 * 0.2;% Y9 `! J2 v, V$ l' w E
- ti = Date.now();. f. S$ g9 j3 k p8 T
- if (k > 1.5) {
9 k) @( [! P4 z5 p1 ?2 Z2 L - k = 0;" v& {0 |6 j% ~6 ?7 Q P( E% ?
- }
; z: Z. i: k9 k$ q. S! U: t+ ~ - setComp(g, 1);
; t: J: {9 Y# J# `/ L2 T* Y3 w. H - da(g);7 X: T1 H6 h/ A' s A
- let kk = smooth(1, k);//平滑切换透明度. U {! h9 V# L9 v: x
- setComp(g, kk);
) v2 {# Y9 |" P' c- o, S - db(g);
7 ]: N3 F c. K* N: Q( x6 T - t.upload();( F* j" F% l8 {7 c; S: t' _2 u/ j& f4 V
- ctx.setDebugInfo("rt" ,Date.now() - ti);
" _7 r$ T( R k% b - ctx.setDebugInfo("k", k);. `* a! E7 @4 v0 w; k' ]& f& }
- ctx.setDebugInfo("sm", kk);
& k/ F% `' d) a: w5 j4 N - rt = Date.now() - ti;
# d* e8 E5 q( U4 [0 F: ^ - Thread.sleep(ck(rt - 1000 / fps));
6 v& h: ~6 N; S0 I' }3 r - ctx.setDebugInfo("error", 0)0 z0 n, j: W. P ^) }% i
- } catch (e) {
$ ]5 n- k3 c; G - ctx.setDebugInfo("error", e);4 G- a7 w9 J w/ b% p7 F
- }
$ S4 Q& F) t8 J+ o- N2 v ^4 m - }" |8 t( j+ m) Z4 S, l1 x+ J
- print("Thread end:" + id);
8 e& X% K; }0 Q% T6 U& x# m6 |$ S4 d - }, s! \ y- X6 G
- let th = new Thread(run, "qiehuan");% [- }3 G0 j: L- Q6 N
- th.start(); U3 N3 b3 p: @ w1 Z% S
- }
7 T' `" t: Y' R8 v - * s8 m2 M5 k+ H! l* B! ?% T
- function render(ctx, state, entity) {0 k! r: n7 J4 G. y, I9 g8 `; d
- state.f.tick();/ W/ i$ H8 k- L f0 ?8 S+ D
- }/ x2 M! s; j; Y; X" _
- ( H# |. R- C5 Z5 W
- function dispose(ctx, state, entity) {* G+ z$ a* g/ w4 H/ b1 p) h
- print("Dispose");
5 X" H8 N% v9 V: u - state.running = false;* J, G0 U. L4 ~. u4 D
- state.f.close();+ C& e7 R" m; e
- }6 k x o+ R* z- F$ k% c3 s
/ x' K; \5 p* P1 l0 n9 n. B7 k7 W- function setComp(g, value) {
! }( s h# R) c) m# E8 E( @ - g.setComposite(AlphaComposite.SrcOver.derive(value));
. W( Y/ u* Y8 K$ i3 z$ E1 s' }$ D! J - }
复制代码 1 Q' ~5 H- J( j: Q
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。
7 n3 P2 r6 B, C0 J+ |. R _7 t! y3 \( C$ U+ C) `" @
6 D% X, f5 c" h: r
顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下)
5 } m o) }5 }6 L; E8 ?2 Z' K |
|