|
|
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
×
, p" w+ A" W- 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。
# x7 w0 Q6 E A4 g, K- importPackage (java.lang);: a2 K7 j( S m! L0 G* Y; U1 V
- importPackage (java.awt);: A5 [. Z* Q* A. q3 ?9 L2 y
- 8 b; ?2 A' A! x' `! a" [; U: U
- include(Resources.id("mtrsteamloco:library/code/face.js"));
% O6 Q) v9 x) A5 M0 D. R( X
3 Q8 N8 p. [, p4 J& x- const font0 = Resources.getSystemFont("Serif").deriveFont(Font.PLAIN, 80);) _ n2 ~/ C9 P2 M. ~% [
- # Z# ?" C* G% ^8 c4 s# e7 M- ^9 Q" t
- function getW(str, font) {
# Z+ n8 b# [% ^ - let frc = Resources.getFontRenderContext();9 [! B- A' ~: d" a! S9 H% V
- bounds = font.getStringBounds(str, frc);. a* t( \7 `( v
- return Math.ceil(bounds.getWidth());; w# f" j, u& Z$ j- _* _
- }
) k) ~4 S" _ I' i d - 5 C6 h; p j, z7 d% O! X0 ~: d
- da = (g) => {//底图绘制' Y* R/ M0 Z5 g- }
- g.setColor(Color.BLACK);
: R& u6 `. q! {1 J - g.fillRect(0, 0, 400, 400);4 t) A- y# w' z( ]: G
- }
% m+ Y! _0 G" N' `6 q* [& i
% Q# O6 ?1 `& a# l& e( |1 r- db = (g) => {//上层绘制
) a! [7 P# M' Z3 q+ X- W0 f - g.setColor(Color.WHITE);
* r$ r" q; G' H! H - g.fillRect(0, 0, 400, 400);; \: S, H$ _- @( ~: N, T5 j
- g.setColor(Color.RED);
" a" b* V `/ ^+ I: P - g.setFont(font0);8 D0 Z# w; y& s+ y7 U0 M+ w+ @+ ^( R
- let str = "晴纱是男娘";; C. ~' |$ | B( @) q
- let ww = 400;- T% [- i6 F7 |3 R# Z4 e6 s
- let w = getW(str, font0);) Q; Q( W. L5 v7 w% X
- g.drawString(str, ww / 2 - w / 2, 200);) J9 m U: g0 e) M& L
- }
0 Q8 ~7 T, s/ n* U) a# v* i* _ - / _4 ?' A; L" `' {- b) {
- const mat = new Matrices();
. C8 [/ v) V* x+ r - mat.translate(0, 0.5, 0);* C8 X& ?' M7 z. H. `0 L6 |
+ g9 ?8 h8 d+ p" B7 A& D- [- function create(ctx, state, entity) {
+ W2 [! y1 t( x3 W - let info = {. w5 J4 S$ p0 F# G" _( T: d
- ctx: ctx,2 |8 ^7 Z5 f, e! \9 t9 K7 f
- isTrain: false,
# X2 Q: L& n; T, ^ - matrices: [mat],
, i) P) Y0 B! }7 B F4 u - texture: [400, 400],
- N3 \# G2 s% b - model: {
6 B2 {7 M9 f( p/ } - renderType: "light",, Z8 [, R) K% R7 k# l+ Q& m
- size: [1, 1],+ w3 R* X/ A0 ], G+ y9 m5 p: C x
- uvSize: [1, 1]
7 G$ D, ?* v! r- n7 o% P+ U( Y& O - }
4 k0 A5 e9 q! `7 |9 y* E* o/ z - }& t7 W& w8 x8 D4 I& Y2 D# g
- let f = new Face(info);
: W* |8 g0 c# r0 y; t - state.f = f;6 [4 ~* }0 Q0 n8 P) m1 N0 P& P4 F0 Y5 v
! i% V) \: m! w/ y6 T- let t = f.texture;
- L8 I# @( c+ i3 f! I. c, L. ~ - let g = t.graphics;
4 a: s% k6 ^! t1 [$ `& R" F - state.running = true;
0 e) j1 H# x' O: b - let fps = 24;
- n9 @& L- R2 B: O/ y - da(g);//绘制底图& V7 X4 Z7 \# ?; q$ V# w' U
- t.upload();
! W d+ z4 |& g! Q5 s* Q - let k = 0;% J7 J- M$ e4 I: M: ]
- let ti = Date.now();% `! Y$ x3 ?0 T$ ^ U( ?+ L+ d. R5 N
- let rt = 0;$ r" i7 D/ L; V( t& h W6 z0 |# j
- smooth = (k, v) => {// 平滑变化
% ` r/ P1 R9 C& L* e$ T - if (v > k) return k;, r4 c8 }: D; ^( F7 B \' J
- if (k < 0) return 0;
. x- M5 P3 { @7 H6 E. A - return (Math.cos(v / k * Math.PI + Math.PI) + 1) / 2 * k;
1 X: M! M: E5 ^, q( |8 ^ g% L - }+ s. q$ b( a4 z! z9 e+ ?. J8 J
- run = () => {// 新线程% r k$ D) ^! [, z. Z
- let id = Thread.currentThread().getId();
: O9 f, [. ?) @3 ]# o - print("Thread start:" + id);
; a! [6 d% }1 B' n, j - while (state.running) {1 k/ H5 U# _8 _' B3 n
- try {" K" e" T! U6 F; n0 V; k4 C1 @" r
- k += (Date.now() - ti) / 1000 * 0.2;& @, l) v- O4 L' p! ~: Q& M
- ti = Date.now();* z% a. ]+ B% n# s& d0 g# D
- if (k > 1.5) {
, ^6 M1 e N. \0 H+ q - k = 0;
6 B) g- U) `' L$ h7 A - }
3 p7 o; b' B/ u2 x" t1 u8 T - setComp(g, 1);5 i" c3 U8 G$ `5 z0 U7 w4 n& b
- da(g);
. t( z8 l' d" c, a% ?9 X - let kk = smooth(1, k);//平滑切换透明度
# X! u3 z9 q: Y* D - setComp(g, kk);7 {( Z* u* `& J
- db(g);
$ f6 Z0 t* j0 C3 x! e' W - t.upload();
X3 Q) _4 e) H - ctx.setDebugInfo("rt" ,Date.now() - ti);
2 P1 |: h) y3 V! ~) q - ctx.setDebugInfo("k", k);; Z% U# P+ e4 n, d7 r
- ctx.setDebugInfo("sm", kk);7 b; ?' C6 r3 D( T, ?' R7 e$ D
- rt = Date.now() - ti;3 q7 E6 d7 ]% v5 F3 N9 x: y
- Thread.sleep(ck(rt - 1000 / fps));
! K7 O' y& }- K9 Z0 h4 ] - ctx.setDebugInfo("error", 0)
/ R+ J# f; i D' M - } catch (e) {/ I# c7 u- y4 S! P. C
- ctx.setDebugInfo("error", e);' c- N& L% F$ q/ R( h5 l
- }4 a( m& k7 o% `% W
- }- S. t# O) R" q, D- Z1 N: e
- print("Thread end:" + id);
6 j6 [0 Z7 I& p/ N) }* E - }9 Y1 R; o F3 `0 s# |3 o% z
- let th = new Thread(run, "qiehuan");
) |( D$ [& `- O' t |3 p$ h - th.start();; {: @ U2 Z/ S$ y; {
- }: @( U& ^; L r# k5 M" p1 {- [: J
- 2 A2 O C; K, v* T+ l- Q
- function render(ctx, state, entity) {
/ M( o3 ?6 E/ w$ `6 ]9 K - state.f.tick();: o3 {- L3 n# \, V) }% s3 L
- }
+ U( D- d1 g0 U: t4 N& z/ f+ k - + X6 I* B1 f) F, T) v
- function dispose(ctx, state, entity) {! J2 k+ `1 ^7 O
- print("Dispose");
' E8 \! r5 V! R( G0 _, w# I9 A - state.running = false;! n$ H7 @, [! d- X; `+ V+ J+ _9 C
- state.f.close();
$ I7 }( V4 r# M" \3 `7 ?. s/ [ - }, c D7 W# k1 v5 p) y
- % P6 _ ]8 u& X) r
- function setComp(g, value) {& n2 ~. R7 l. r( C
- g.setComposite(AlphaComposite.SrcOver.derive(value));( a6 P7 v: f* U
- }
复制代码 6 {7 _( z3 u8 _# ^8 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。
; D, T3 B; [; F3 a: E' i3 {" G
, x/ K; g4 D5 } f
$ T+ T b) o2 X. @- l顺带一提,完成的时间挺短的,一次是 2 ms 左右(当前情况下)4 b1 q( Q9 P+ L) i% T9 o
|
|